JPH11179499A - Vacuum float-up melting and continuous casting apparatus and method thereof - Google Patents

Vacuum float-up melting and continuous casting apparatus and method thereof

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Publication number
JPH11179499A
JPH11179499A JP34515997A JP34515997A JPH11179499A JP H11179499 A JPH11179499 A JP H11179499A JP 34515997 A JP34515997 A JP 34515997A JP 34515997 A JP34515997 A JP 34515997A JP H11179499 A JPH11179499 A JP H11179499A
Authority
JP
Japan
Prior art keywords
vacuum
chamber
melting
bar
flotation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP34515997A
Other languages
Japanese (ja)
Inventor
Makoto Yoshida
吉田  誠
Kengo Kainuma
研吾 貝沼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP34515997A priority Critical patent/JPH11179499A/en
Publication of JPH11179499A publication Critical patent/JPH11179499A/en
Withdrawn legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To obtain a high purity metallic material by executing melting operation in the vacuum to eliminate oxidization of metal and mixture of gas, etc., and by degassing and to obtain a high purity cast product by casting molten metal under the vacuum. SOLUTION: A float-up melting treatment chamber 22 constituted of a vacuum vessel in which a float-up melting furnace 20, a die with an upper and part fitted to a flow-out hole and with an outer peripheral part cooled with a cooler and cooling and solidifying the molten metal passed through therein, a water-cooled type cylindrical roller 16 drawing out the cast bar material and a cutter device 17 for cutting the bar material into a prescribed length are housed, is provided. A material supplying chamber 21 housing a melting material charging device 13 closely attached to the upper part of the treatment chamber 22 and charging the material to be melted, is arranged, and a bar material housing chamber 23 closely attached to the lower part of the treatment chamber 22 and housing the cut bar material is arranged, and a vacuum evacuating system 28 and an inert gas introducing means 30 making each of three chambers into separately vacuum condition or gas atmosphere are attached to the apparatus.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】この発明は、導電性の被溶解
材を交番磁界中において、電磁誘導作用によって誘導加
熱するとともに、所定の分布の磁界を生成して、被溶解
材に電磁力による浮揚力を与え浮揚状態で溶解すること
によって、高純度の材料を得ることのできる浮揚溶解装
置で、特に真空中で高純度の溶湯を溶解し、また、上部
から連続又は間欠的に被溶解材を投入し、下部の流出口
に設けられたダイスを通して連続鋳造する真空浮揚溶解
連続鋳造装置および方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for inductively heating a conductive material to be melted in an alternating magnetic field by electromagnetic induction, and generating a magnetic field having a predetermined distribution to float the material to be melted by electromagnetic force. A flotation melting device that can obtain high-purity material by applying force and melting in a floating state.It melts high-purity molten metal, especially in vacuum, and continuously or intermittently melts the material to be melted from above. The present invention relates to a vacuum flotation melting continuous casting apparatus and a continuous casting method for continuously casting through a die provided at a lower outlet.

【0002】[0002]

【従来の技術】図6は従来例の構成図を示す。この図6
において、1は耐火物で形成されたるつぼ、2はるつぼ
1の外周に巻回された誘導コイル、3は前記るつぼ1の
底部に装着され、該るつぼ1内の溶湯を鋳造する際に溶
湯を冷却して棒材4に成形するダイス、5は該ダイス3
を包囲して外周側で冷却する冷却器、6は前記ダイス4
により鋳造された棒材5を挟んで下方に引き抜く円筒ロ
ーラ、7は鋳造された棒材4をガイドするガイドロー
ラ、8は前記円筒ローラ6の軸受、9は前記円筒ローラ
6の駆動モータを示す。この図6において、るつぼ1の
外周にはるつぼ1内に投入される溶解材料を誘導加熱し
て溶解する誘導コイル2が巻回されており、るつぼ1の
底部には冷却器5により外周側から冷却されたダイス3
が装着されている。そして、ダイス3の下方には軸受8
に支持され、駆動モータ9に接続された円筒ローラ6が
配されてダイス3で鋳造された棒材を挟んで下方に引き
抜く。
2. Description of the Related Art FIG. 6 shows a configuration diagram of a conventional example. This figure 6
Wherein 1 is a crucible made of refractory material, 2 is an induction coil wound around the outer periphery of the crucible 1, and 3 is mounted on the bottom of the crucible 1, and casts the molten metal in the crucible 1 when casting it. A die 5 to be cooled and formed into a bar 4 is a die 3
A cooler that surrounds and cools on the outer peripheral side;
A cylindrical roller for pulling down the bar material 5 cast by the above, a guide roller 7 for guiding the cast bar material 4, a bearing 8 for the cylindrical roller 6, and a driving motor 9 for the cylindrical roller 6 . In FIG. 6, an induction coil 2 is wound around the outer periphery of the crucible 1 for inductively heating and melting the molten material put into the crucible 1, and a cooler 5 is provided at the bottom of the crucible 1 from the outer periphery side. Cooled die 3
Is installed. A bearing 8 is provided below the die 3.
, And a cylindrical roller 6 connected to a drive motor 9 is disposed, and pulls downward with a bar material cast by the die 3 interposed therebetween.

【0003】上記の構成において、最初にダイスの中に
棒材4と同質材の栓(図示されていない)を挿入して円
筒ローラ6で挟んで支持しておき、るつぼ1内に溶解材
料を投入する。投入された溶解材料は誘導コイル2によ
り溶解されて溶湯になり、所定の温度と成分とに調整さ
れた後、軸受9により支持された円筒ローラ6を駆動モ
ータ9により駆動して図示されていない栓をゆっくりと
引き抜き、それにつれて、ダイス3内に導かれた溶湯が
冷却器5により外周側を水冷されたダイス3で冷却され
て棒材4に連続して鋳造される。
In the above configuration, first, a stopper (not shown) made of the same material as the bar 4 is inserted into the die and supported by being sandwiched between the cylindrical rollers 6. throw into. The introduced molten material is melted by the induction coil 2 to become a molten metal, and after being adjusted to a predetermined temperature and a predetermined component, the cylindrical roller 6 supported by the bearing 9 is driven by the drive motor 9 and is not shown. As the plug is slowly pulled out, the molten metal guided into the die 3 is cooled by the die 3 whose outer peripheral side is water-cooled by the cooler 5 and continuously cast into the bar 4.

【0004】るつぼ1以下円筒ローラ6までは大気中で
架台に組み込まれた状態で使用されている。
[0004] The parts from the crucible 1 to the cylindrical roller 6 are used in a state of being incorporated in a gantry in the atmosphere.

【0005】[0005]

【発明が解決しようとする課題】ところで従来の構成で
は、溶解は、大気中で行われていたが、大気中では、溶
解中に酸化した金属が混じってしまい溶解材の純度が低
下する。このため不活性ガス雰囲気中で溶解および鋳造
を行う方法を提案して実施しているが、不活性ガス中に
おいては金属の酸化は減少するが溶解材料中に含まれる
ガス等が除去されず溶解材の純度を向上させることがで
きなかった。
By the way, in the conventional structure, the melting is performed in the air. However, in the air, the oxidized metal is mixed during the melting, and the purity of the melted material is reduced. For this reason, a method of melting and casting in an inert gas atmosphere has been proposed and implemented. In the inert gas, oxidation of metal is reduced, but gas contained in the melted material is not removed and melting is performed. The purity of the material could not be improved.

【0006】この発明は上記課題を解決するためになさ
れたもので、その目的とするところは、真空中で溶解作
業を行うことで、金属の酸化およびガス等の混入を無く
し、また脱ガス等により高純度の金属材料を得、且つ、
溶解された溶湯を真空中で連続鋳造することにより高純
度の鋳造品を得ることができる真空浮揚溶解連続鋳造装
置および方法を提供することにある。
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. It is an object of the present invention to eliminate the oxidation of metals and the incorporation of gases, etc. To obtain a high-purity metal material, and
It is an object of the present invention to provide a vacuum levitation melting continuous casting apparatus and method capable of obtaining a high-purity cast product by continuously casting a molten metal in a vacuum.

【0007】[0007]

【課題を解決するための手段】上記課題を解決するため
に請求項1記載の発明は、良導電金属製のセグメントを
周方向に絶縁物を介して積層し底部に流出口を形成した
金属るつぼ、および該るつぼの外周に巻回された誘導コ
イルを有する浮揚溶解炉と、上端部を該流出口に装着し
て流出口の下部で外周側を冷却器で包囲して冷却し、そ
の中を通過する溶湯を冷却して凝固させる棒材成形用ダ
イスと、鋳造時に前記棒材成形用ダイスにより鋳造され
た棒材を引き抜く水冷式の円筒ローラと、前記円筒ロー
ラから引き抜かれた棒材を所定長さに切断するカッター
装置とを真空容器内に収納した浮揚溶解処理室を設け
て、前記浮揚溶解処理室の上部に前記浮揚溶解処理室と
気密に密接した真空容器で構成し、前記るつぼ内に導電
性の被溶解材を投入する溶解材料投入装置収納した材料
供給室を設けるとともに、前記浮揚溶解処理室の下部に
前記浮揚溶解処理室と気密に密接した真空容器で構成
し、前記カッター装置で切断した棒材を収納する棒材収
納室を設けたことを特徴とする。
In order to solve the above-mentioned problems, the present invention is directed to a metal crucible in which segments made of a good conductive metal are laminated in the circumferential direction via an insulator and an outlet is formed at the bottom. And a flotation melting furnace having an induction coil wound on the outer periphery of the crucible, and an upper end portion is attached to the outlet, and the outer peripheral side is cooled at a lower portion of the outlet by surrounding the outer peripheral side with a cooler. A rod-forming die for cooling and solidifying the passing molten metal, a water-cooled cylindrical roller for pulling the rod cast by the rod-forming die during casting, and a rod drawn from the cylindrical roller. A flotation / melting processing chamber containing a cutter device for cutting into a length is provided in a vacuum vessel, and a vacuum vessel is provided in an upper part of the flotation / melting processing chamber in a vacuum-tight manner in close contact with the flotation / melting processing chamber. Add conductive material to be melted A bar for storing a bar material cut off by the cutter device, comprising a material supply chamber containing a molten material charging device, and a vacuum vessel provided in a lower part of the floating melting processing chamber in an airtight and tight contact with the floating melting processing chamber. A material storage room is provided.

【0008】また、請求項2記載の発明は、請求項1記
載の真空浮揚溶解連続鋳造装置において、被溶解材をる
つぼ内に投入する材料供給室と、浮揚溶解処理室との間
を開閉可能に仕切る第一の真空仕切弁を設けるととも
に、浮揚溶解処理室と、棒材収納室との間を開閉可能に
仕切る第二の真空仕切弁を設けて、真空容器内を、材料
供給室と、浮揚溶解処理室と、棒材収納室との各々独立
した3室に分割したことを特徴とする。。
According to a second aspect of the present invention, in the vacuum flotation continuous casting apparatus according to the first aspect, an opening and closing can be performed between a material supply chamber for charging a material to be melted into a crucible and a flotation melting processing chamber. In addition to providing a first vacuum gate valve for partitioning, a floating and melting treatment chamber, and a second vacuum gate valve for partitioning between the bar storage chamber so as to be openable and closable, inside the vacuum vessel, a material supply chamber, It is characterized in that it is divided into three independent chambers of a flotation melting processing chamber and a bar storage chamber. .

【0009】また、請求項3記載の発明は、請求項1な
いし請求項2記載の真空浮揚溶解連続鋳造装置におい
て、るつぼ上方に、るつぼ上部開口部を開閉可能に覆い
溶湯からの輻射熱を遮蔽するリフレクターを設けたこと
を特徴とする。また、請求項4記載の発明は、請求項1
ないし請求項3のいずれかに記載の真空浮揚溶解連続鋳
造装置において、水冷式の円筒ローラおよび冷却ジャケ
ットの冷却水温度を制御する温調ユニットを設けたこと
を特徴とする。
According to a third aspect of the present invention, in the vacuum flotation continuous casting apparatus according to the first or second aspect, the upper opening of the crucible is openably opened above the crucible to shield radiant heat from the molten metal. It is characterized by having a reflector. Further, the invention described in claim 4 is the same as the claim 1.
In the vacuum levitation melting continuous casting apparatus according to any one of claims 3 to 5, a temperature control unit for controlling a cooling water temperature of a water-cooled cylindrical roller and a cooling jacket is provided.

【0010】また、請求項5記載の発明は、請求項1な
いし請求項4のいずれかに記載の真空浮揚溶解連続鋳造
装置において、材料供給室、浮揚溶解処理室および棒材
収納室の各室に、単独で不活性ガスを供給できる不活性
ガス導入手段を設けたことを特徴とする。また、請求項
6記載の発明は、請求項1ないし請求項5のいずれかに
記載の真空浮揚溶解連続鋳造装置において、材料供給
室、浮揚溶解処理室および棒材収納室の各々が単独で真
空排気および圧力制御できるようにする。
According to a fifth aspect of the present invention, there is provided the vacuum floating melting continuous casting apparatus according to any one of the first to fourth aspects, wherein each of a material supply chamber, a floating melting processing chamber, and a bar storage chamber. And an inert gas introducing means capable of supplying an inert gas alone. According to a sixth aspect of the present invention, in the vacuum flotation continuous casting apparatus according to any one of the first to fifth aspects, each of the material supply chamber, the flotation melting processing chamber, and the rod storage chamber is independently vacuumed. Be able to control exhaust and pressure.

【0011】上記請求項1〜請求項6の構成により、る
つぼと、るつぼの外径側に設置した誘導コイルと、るつ
ぼ底部流出口に装着し、冷却器で水冷されたダイスと、
棒材を連続して引き抜く円筒ローラと、棒材を所定の長
さに切断するカッター装置とを一つの真空容器に設置し
た浮揚溶解処理室と、その上部に真空仕切弁を介して、
分割した真空容器で、内部には材料を投入する溶解材料
投入装置を収納した材料供給室と、浮揚溶解処理室下部
に真空仕切弁を介して分割した真空容器で、内部には棒
材を収納する棒材収納室との3室に分割した構成とし、
各々の真空室を個別に真空排気できるようにしたことに
より、材料供給の際は材料供給室のみ大気圧に戻し、浮
揚溶解処理室および棒材収納室とも真空状態のままで材
料供給することが可能になる。
The crucible, the induction coil installed on the outer diameter side of the crucible, the die mounted on the crucible bottom outlet, and water-cooled by the cooler, according to the above-described claims 1 to 6,
A flotation and melting treatment chamber in which a cylindrical roller that continuously pulls out a bar and a cutter device that cuts the bar into a predetermined length and installed in a single vacuum vessel, and a vacuum gate valve on the upper part thereof,
A divided vacuum container with a material supply chamber containing a molten material charging device for charging the material inside, and a vacuum container divided through a vacuum gate valve below the flotation melting processing chamber with a rod inside. To be divided into three chambers, and
Since each vacuum chamber can be evacuated individually, only the material supply chamber is returned to the atmospheric pressure when supplying the material, and the material can be supplied while the floating melting processing chamber and the rod storage chamber remain in vacuum. Will be possible.

【0012】また、真空室内のるつぼに材料を供給する
際は、材料供給室を真空排気して高真空の浮揚溶解処理
室との圧力バランスをとることによって、差圧の発生を
防ぎ、ゴミ、埃の舞い上がりを防止して溶解材料を供給
することができる。このことにより、例えば、浮揚溶解
処理室で溶解作業中に材料を追加したり、別材料を供給
して合金を作る時などでも高純度の溶解を可能とする。
When the material is supplied to the crucible in the vacuum chamber, the material supply chamber is evacuated and the pressure is balanced with the high-vacuum flotation processing chamber to prevent the generation of a differential pressure, thereby preventing the generation of dust. The molten material can be supplied while preventing dust from rising. This enables high-purity melting even when, for example, adding a material during the melting operation in the flotation melting processing chamber or supplying another material to form an alloy.

【0013】また、棒材収納室が満杯になって、棒材を
取出す際は、連続鋳造を中断して、第二の真空仕切弁を
閉鎖して棒材収納室に不活性ガスを供給して大気圧状態
とし、棒材収納室を分離して棒材を取出してから再び棒
材収納室を装着して棒材収納室を真空にしてから第二の
真空仕切弁を開放して連続鋳造を再開することが可能に
なる。
When the bar storage chamber is full and the bar is to be removed, continuous casting is interrupted, the second vacuum gate is closed, and an inert gas is supplied to the bar storage chamber. To atmospheric pressure, separate the bar storage chamber, take out the bar, re-attach the bar storage chamber, evacuate the bar storage chamber, open the second vacuum gate valve and continuously cast Can be resumed.

【0014】また、この時間中でも、浮揚溶解処理室は
真空状態を維持することができ、ゴミ、埃、不純ガスの
発生を防いだ状態で、次の溶解作業に備えるので、溶湯
および鋳造品にゴミ、埃、不純ガス等の混入が無く高純
度の棒材を鋳造することが可能になる。また、るつぼ上
部開口部を開閉移動可能に覆うリフレクターはるつぼ内
の溶湯からの輻射熱を遮蔽するので第一の真空仕切弁
等、るつぼ上方の機器の熱歪みを未然に防止することが
可能になる。
Also during this time, the flotation processing chamber can be maintained in a vacuum state and is prepared for the next melting operation while preventing generation of dust, dust and impurity gas. It is possible to cast a high-purity rod without mixing of dust, dust, and impure gas. In addition, the reflector that covers the upper opening of the crucible so that it can be opened and closed shields radiant heat from the molten metal in the crucible, so that it is possible to prevent thermal distortion of devices above the crucible, such as the first vacuum gate valve. .

【0015】また、水冷式の円筒ローラおよび冷却ジャ
ケットは冷却水温度を制御する温調ユニットを設けてい
るので棒材を鋳造する際の冷却速度を制御できて鋳造を
最適にすることが可能になる。また、請求項7記載の発
明は、材料供給室、および浮揚溶解処理室、棒材収納室
の全室を大気圧にして、第一および第二の真空仕切弁を
開放して、浮揚溶解処理室の円筒ローラに棒材と同じ断
面形状のスターティングブロックを挟んで円筒ローラを
駆動してスターティングブロックを棒材成形用ダイス内
に装着し、るつぼに溶解材料を供給するとともに、材料
供給室の扉を開け室内の溶解材料投入装置に導電性の被
溶解材料を供給し、材料供給後は、真空排気系により、
三室共に所定の真空度にまで真空引きし、前記材料を浮
揚溶解して、溶解完了後は円筒ローラを駆動してスター
ティングブロックを下降させながら溶湯をダイス内に連
続鋳造して、前記ダイスで冷却して凝固させて棒材にし
て下方に引き抜き棒材が所定長さに達する毎にカッター
装置で切断して棒材収納室に切断した棒材を収納し、棒
材収納室内に所定量の棒材が収納されると連続鋳造を中
止して、浮揚溶解処理室と棒材収納室との間の第二の真
空仕切弁を閉鎖して、棒材収納室内に不活性ガスを導入
して棒材収納室内を大気圧と略同じにしてから棒材収納
室を分離して棒材を搬出し、空の棒材収納室を浮揚溶解
処理室の下側に装着して、棒材収納室内を所定の真空度
に真空引きした後、第二の真空仕切弁を開放して、連続
鋳造を再会するようにしたことを特徴とする。
Further, since the water-cooled cylindrical roller and the cooling jacket are provided with a temperature control unit for controlling the temperature of the cooling water, it is possible to control the cooling speed at the time of casting the bar and to optimize the casting. Become. According to a seventh aspect of the present invention, all of the material supply chamber, the flotation / melting processing chamber, and the bar storage chamber are set to the atmospheric pressure, and the first and second vacuum gate valves are opened to perform the flotation / melting processing. A starting block having the same cross-sectional shape as the bar is sandwiched between the cylindrical rollers in the chamber, and the cylindrical roller is driven to mount the starting block in the die for forming the bar, and to supply the melting material to the crucible and supply the material to the material supply chamber. Open the door to supply the conductive material to be melted to the molten material charging device in the room, and after supplying the material,
All three chambers are evacuated to a predetermined degree of vacuum, the material is floated and melted, and after the melting is completed, the molten metal is continuously cast into a die while driving the cylindrical roller to lower the starting block, and the die is used for the die. The bar is cooled and solidified into a bar, pulled out downward, and cut each time the bar reaches a predetermined length. The bar is cut by a cutter device, and the cut bar is stored in a bar storage chamber. When the bar is stored, the continuous casting is stopped, the second vacuum gate valve between the flotation processing chamber and the bar storage chamber is closed, and an inert gas is introduced into the bar storage chamber. After the bar storage chamber is made almost the same as the atmospheric pressure, the bar storage chamber is separated, the bar is carried out, and an empty bar storage chamber is mounted below the flotation processing chamber. After evacuating to a predetermined degree of vacuum, the second vacuum gate valve is opened, and continuous casting is re-established. Characterized in that the.

【0016】また、請求項8記載の発明は、請求項7記
載の真空浮揚溶解連続鋳造方法において、連続鋳造中に
溶解材料を所定量づつ連続してるつぼに供給して連続溶
解して、材料供給室内の溶解材料が不足すると、第一の
真空仕切弁を閉鎖して、材料供給室内に不活性ガスを供
給して、該室内を大気圧と略同圧にした後、材料供給室
の扉を開け室内の溶解材料投入装置に導電性の被溶解材
料を供給し、材料供給後は、真空排気系により、該材料
供給室内を真空引きして、所定の真空度に達した後第一
の真空仕切弁を開放して前記るつぼへの溶解材料の供給
を再開して連続溶解連続鋳造を行うようにしたことを特
徴とする。
The invention according to claim 8 is the vacuum floating melting continuous casting method according to claim 7, wherein the molten material is continuously supplied to the crucible by a predetermined amount during continuous casting to continuously melt the material. When the amount of dissolved material in the supply chamber is insufficient, the first vacuum gate valve is closed, an inert gas is supplied into the material supply chamber, and the pressure in the chamber is substantially equal to the atmospheric pressure. Open and supply the conductive material to be melted to the molten material charging device in the chamber, after the material is supplied, the evacuation system to evacuate the material supply chamber, after reaching a predetermined degree of vacuum, the first The vacuum gate valve is opened, and the supply of the molten material to the crucible is restarted to perform continuous melting and continuous casting.

【0017】上記請求項7および8に記載の構成により
真空容器内で、材料供給から溶解作業および鋳造作業ま
でを連続して行うことが可能になる。
[0017] According to the structure of the seventh and eighth aspects, it is possible to continuously perform from the material supply to the melting operation and the casting operation in the vacuum vessel.

【0018】[0018]

【発明の実施の形態】図1はこの発明の実施の形態の主
要部の構成図を示し、図2は図1の浮揚溶解炉および浮
揚溶解炉回りの機器の構成図を示す。この図1、図2に
おいて、従来例と同一の符号を付けた部材はおおよそ同
一の機能を有するのでその説明は省略する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a configuration diagram of a main part of an embodiment of the present invention, and FIG. 2 shows a configuration diagram of a flotation melting furnace of FIG. In FIGS. 1 and 2, the members denoted by the same reference numerals as those of the conventional example have almost the same functions, and therefore the description thereof will be omitted.

【0019】この図1、図2において、10は有底の円
筒状に形成されその底部に形成された溶湯を出す流出口
10b、および円筒状部に放射状に略等間隔で設けられ
た縦長のスリットを有する良導電金属製のるつぼ、10
aはるつぼ10内で被溶解材料が溶解された溶湯、10
cはるつぼ10に冷却水を給排水するマニホールド、1
1は被溶解材料に、電磁誘導によって流れる渦電流を利
用して誘導加熱と電磁力による浮揚力との双方を同時に
与える誘導コイル、12は誘導コイル11に電流を供給
する交流電源、12aは誘導コイル11に交流電源12
から給電するための導体を後述の浮揚溶解処理室を形成
する真空容器内に導入する際に該導体を真空容器から絶
縁するとともに、該導入部を真空シールする絶縁フラン
ジ、13はるつぼ10に被溶解材料を供給する溶解材料
投入装置、14はるつぼ10の底部の流出口10bに装
着して溶湯10aを鋳造する際に溶湯10aを冷却して
凝固させ棒材4に鋳造する棒材成形用ダイス、15は該
棒材成形用ダイス14を外周側で冷却する冷却器、16
は、前記棒材成形用ダイス14で成形した棒材4を引き
出すために前記棒材4を挟むように対向して配置した円
筒ローラ、16aは円筒ローラ16に回転力を伝達する
回転軸、16bは後述の浮揚溶解処理室を形成する真空
容器の側壁を貫通させた回転軸16aを支持する真空用
の軸受け、16cは前記軸受け16bと真空容器外壁面
とを真空シールする真空フランジ、16dは円筒ローラ
16および回転軸16aを冷却する冷却水通水用の冷却
水給排水口、17は鋳造された棒材4を所定の長さに切
断するカッター装置、17aはカッター装置の駆動部1
8を後述の浮揚溶解処理室を形成する真空容器外に設置
して真空容器内のカッター本体と接続するための導入部
をシールする真空シールフランジ、19は回転軸16a
を駆動するための駆動モータ、19aは1台の駆動モー
タ19による駆動力を四つの円筒ローラに伝達するため
の回転駆動機構(詳細は図4、図5を用いて後述)を示
す。
In FIGS. 1 and 2, reference numeral 10 denotes an outlet 10b formed in a cylindrical shape having a bottom and formed at the bottom thereof for discharging a molten metal; Crucible made of good conductive metal with slit, 10
a a molten metal in which a material to be melted is melted in a crucible 10;
c is a manifold for supplying and discharging cooling water to and from the crucible 10;
Reference numeral 1 denotes an induction coil that simultaneously applies both induction heating and levitation force by electromagnetic force to a material to be melted by using eddy current flowing by electromagnetic induction, 12 denotes an AC power supply that supplies current to an induction coil 11, and 12a denotes an induction coil. AC power supply 12 for coil 11
When a conductor for supplying electric power from a vacuum vessel is introduced into a vacuum vessel forming a flotation / melting processing chamber described later, the conductor is insulated from the vacuum vessel, and an insulating flange for vacuum-sealing the introduction section is provided on the crucible 10. A molten material charging device for supplying a molten material, a bar forming die 14 mounted on an outlet 10b at the bottom of the crucible 10 to cool and solidify the molten metal 10a when casting the molten metal 10a and to cast the molten metal 10a into a rod 4. , 15 are coolers for cooling the bar forming die 14 on the outer peripheral side,
Is a cylindrical roller arranged to face the bar 4 so as to sandwich the bar 4 for drawing out the bar 4 formed by the bar forming die 14, 16a is a rotary shaft for transmitting a rotational force to the cylindrical roller 16, 16b Is a vacuum bearing that supports a rotary shaft 16a that penetrates a side wall of a vacuum vessel that forms a flotation melting processing chamber described later, 16c is a vacuum flange that vacuum seals the bearing 16b and the outer wall surface of the vacuum vessel, and 16d is a cylinder. A cooling water supply / drain port for passing cooling water for cooling the roller 16 and the rotating shaft 16a, a cutter device 17 for cutting the cast bar 4 into a predetermined length, and a driving device 1 of the cutter device 17a
Reference numeral 8 denotes a vacuum seal flange which is installed outside the vacuum vessel forming a flotation / dissolution processing chamber to be described later and seals an introduction portion for connecting to a cutter body in the vacuum vessel. Reference numeral 19 denotes a rotating shaft 16a.
, A rotary drive mechanism (details will be described later with reference to FIGS. 4 and 5) for transmitting the driving force of one drive motor 19 to the four cylindrical rollers.

【0020】21は真空容器で形成され、るつぼ10に
被溶解材料を供給する溶解材料投入装置13が収納され
た材料供給室、22は真空容器で形成され、るつぼ1
0、および冷却水マニホールド10c、誘導コイル11
と誘導コイル11に交流電源12を供給する導体を絶縁
して導入するための絶縁フランジ12a,棒材成形用ダ
イス14、冷却ジャケット15、棒材4を引き出す円筒
ローラ16、該円筒ローラ16の回転軸16a,回転軸
16aの軸受け16bおよび該軸受け16bを真空シー
ルする真空フランジ16b、円筒ローラ16により下方
に引出した棒材4を所定の長さに切断するカッター機構
17、真空容器側面導入用の真空シールフランジ17
a、カッター機構の駆動源としての油圧シリンダー18
が装着された浮揚溶解処理室を示す。
Reference numeral 21 denotes a material supply chamber which is formed of a vacuum container and accommodates a molten material charging device 13 for supplying a material to be melted to the crucible 10;
0, and cooling water manifold 10c, induction coil 11
Flange 12a for insulating and introducing a conductor supplying an AC power supply 12 to the coil 11 and the induction coil 11, a bar forming die 14, a cooling jacket 15, a cylindrical roller 16 for extracting the bar 4, and rotation of the cylindrical roller 16 A shaft 16a, a bearing 16b of the rotating shaft 16a, a vacuum flange 16b for vacuum-sealing the bearing 16b, a cutter mechanism 17 for cutting the rod 4 drawn downward by the cylindrical roller 16 into a predetermined length, Vacuum seal flange 17
a, Hydraulic cylinder 18 as drive source of cutter mechanism
Shows a flotation dissolution chamber to which is attached.

【0021】上記で、浮揚溶解炉20はるつぼ10と誘
導コイル11とで構成され、これに交流電源を加えて浮
揚溶解装置が構成される。前記円筒ローラ16の回転軸
16aは軸受け16bおよび該軸受け16bを支持する
真空フランジ16bを介して真空容器側面から外部に引
き出されて円筒ローラ16に駆動力を伝達するための回
転駆動機構19aに接続されている。前記回転軸16a
は中空軸とし、冷却水給排水口16dを両端に備えて冷
却水を通す水冷構造としている。
As described above, the levitation melting furnace 20 is composed of the crucible 10 and the induction coil 11, and an AC power supply is added thereto to form a levitation melting apparatus. The rotary shaft 16a of the cylindrical roller 16 is connected to a rotary drive mechanism 19a that is drawn out from the side of the vacuum vessel via a bearing 16b and a vacuum flange 16b that supports the bearing 16b and that transmits a driving force to the cylindrical roller 16. Have been. The rotating shaft 16a
Is a hollow shaft, and has a cooling water supply / drainage port 16d at both ends and has a water cooling structure through which cooling water flows.

【0022】23は浮揚溶解処理室22の下部に設けら
れ、真空容器で形成された棒材収納室、24は材料供給
室21と浮揚溶解処理室22との隔壁の一部を開閉可能
に仕切る第一の真空弁、25は棒材収納室23と浮揚溶
解処理室22との隔壁の一部を開閉可能に仕切る第二の
真空弁、26は鋳造前にるつぼ10内の溶湯が落下する
のを防止するために棒材成形用ダイス14内に装着する
栓を兼ねたスターティングブロック、27はるつぼ10
の開口部の上方で、溶湯1aの輻射熱を遮蔽する熱遮蔽
用のリフレクター、27aはリフレクターをるつぼ上方
から旋回退避させる旋回機構、28は真空容器内を排気
する真空排気系、28aは真空排気系28の遮断バル
ブ、29は溶解材料投入装置13に外部から材料を供給
するための扉、30は真空容器内に不活性ガスを供給す
る不活性ガス導入手段、30aは不活性ガス導入手段3
0のガス遮断バルブを示す。
Reference numeral 23 is provided below the flotation processing chamber 22, and is a bar storage chamber formed of a vacuum vessel. Reference numeral 24 partitions a part of a partition between the material supply chamber 21 and the flotation processing chamber 22 so as to be openable and closable. A first vacuum valve, 25 is a second vacuum valve for partitioning a part of a partition wall between the rod storage chamber 23 and the flotation processing chamber 22 so as to be openable and closable, and 26 is for the molten metal in the crucible 10 to fall before casting. Starting block 27 serving also as a stopper to be mounted in the rod forming die 14 in order to prevent the crucible 10
Above the opening, a reflector for shielding heat, which shields the radiant heat of the molten metal 1a; 27a, a turning mechanism for turning and retracting the reflector from above the crucible; 28, a vacuum exhaust system for exhausting the inside of the vacuum vessel; 28 is a shut-off valve, 29 is a door for supplying a material from the outside to the molten material charging device 13, 30 is an inert gas introducing means for supplying an inert gas into the vacuum vessel, and 30a is an inert gas introducing means 3
0 shows a gas shut-off valve.

【0023】また、31は温調ユニットを示し、棒材成
形用ダイス14を冷却する冷却ジャケット15に接続し
所望の設定温度の冷却水を供給可能にしている。この図
1において、浮揚溶解処理室22内には、良導電金属製
のセグメントを周方向に絶縁物を介して積層して底部に
流出口10bを形成した金属るつぼ10と、該金属るつ
ぼ10の外周に巻回された誘導コイル11と、前記るつ
ぼ10の流出口10bに装着された棒材成形用ダイス1
4および該ダイスを外側から冷却する冷却器15と、内
部に冷却水の通水孔を穿孔された回転軸16aに装着さ
れて棒材4およびスターティングブロック26を両側か
ら挟むように配された円筒ローラ16と、所定長さに鋳
造された棒材4を切断するカッター17の本体部分と、
金属るつぼ10の開口部を開閉可能に覆うリフレクター
27とが収納されている。そして、誘導コイル11は真
空容器外に設置された交流電源12に絶縁フランジ12
aを通して接続され、リフレクター27は真空容器外に
設置された旋回機構27aに接続されている。
Reference numeral 31 denotes a temperature control unit, which is connected to a cooling jacket 15 for cooling the bar material forming die 14 so that cooling water at a desired set temperature can be supplied. In FIG. 1, a metal crucible 10 in which a segment made of a good conductive metal is laminated in the circumferential direction via an insulator to form an outlet 10b at the bottom, and An induction coil 11 wound around the outer periphery, and a bar forming die 1 mounted on an outlet 10b of the crucible 10
4 and a cooler 15 for cooling the dies from the outside, and a rotating shaft 16a having a cooling water flow hole formed therein, and arranged so as to sandwich the bar 4 and the starting block 26 from both sides. A cylindrical roller 16 and a main body portion of a cutter 17 for cutting the bar 4 cast to a predetermined length;
A reflector 27 that opens and closes the opening of the metal crucible 10 is housed. The induction coil 11 is connected to an AC power supply 12 installed outside the vacuum vessel by an insulating flange 12.
a, and the reflector 27 is connected to a turning mechanism 27a installed outside the vacuum vessel.

【0024】また、円筒ローラ16の回転軸16aは浮
揚溶解処理室22の真空容器の両側壁を貫通して側壁の
外側で真空フランジ16cで真空シールされた軸受け1
6bにより支持されており、該軸受け16bの外側で冷
却水給排水口16dおよび円筒ローラ16の回転軸16
aを駆動する回転駆動機構19aと駆動モータ19とに
接続されている。
The rotating shaft 16a of the cylindrical roller 16 penetrates both side walls of the vacuum vessel of the flotation / melting processing chamber 22, and the bearing 1 is vacuum-sealed with a vacuum flange 16c outside the side wall.
6b, a cooling water supply / drain port 16d and a rotary shaft 16 of the cylindrical roller 16 are provided outside the bearing 16b.
a is connected to a rotation drive mechanism 19a for driving a and a drive motor 19.

【0025】また、カッター装置17の本体は真空シー
ルフランジ17aを介して外部の駆動部18に接続され
ている。また、浮揚溶解処理室22の上部には材料投入
装置13を収納した材料供給室21が浮揚溶解処理室2
2との間を仕切る第一の真空弁24を介して気密に密接
して取付けられており、浮揚溶解処理室22の下部には
第二の真空弁25で仕切られた棒材収納室23が第二の
真空弁25の下方で着脱可能に装着されている。
The main body of the cutter device 17 is connected to an external drive section 18 via a vacuum seal flange 17a. Further, a material supply chamber 21 containing the material input device 13 is provided above the flotation / melting processing chamber 22.
2 is mounted in a gas-tight manner via a first vacuum valve 24 that separates the bar material storage chamber 2 from a bar material storage chamber 23 partitioned by a second vacuum valve 25 below the flotation / melt processing chamber 22. It is detachably mounted below the second vacuum valve 25.

【0026】そして、材料供給室21、および浮揚溶解
処理室22、棒材収納室23の3室は真空排気系28に
それぞれ遮断バルブ28aを介して接続されるととも
に、それぞれ別個にガス遮断バルブ30aを介して不活
性ガス導入手段30に接続されている。また、円筒ロー
ラ16と冷却器15の冷却水はそれぞれ個別に図示して
いない温度センサを介して温度制御を行う温調ユニット
31に接続されてそれぞれ設定温度に制御されている。
The material supply chamber 21, the flotation / melt processing chamber 22, and the rod storage chamber 23 are connected to a vacuum exhaust system 28 via shut-off valves 28a, respectively, and are separately provided with gas shut-off valves 30a. Is connected to the inert gas introducing means 30 via the Further, the cooling water of the cylindrical roller 16 and the cooling water of the cooler 15 are individually connected to a temperature control unit 31 that performs temperature control via a temperature sensor (not shown), and are controlled to set temperatures.

【0027】上記の構成において、この真空浮揚溶解連
続鋳造装置を運転して連続鋳造を行う際は、先ず、浮揚
溶解処理室22と、収納室23と、材料供給室21とを
真空排気系28により真空排気した後、不活性ガスを不
活性ガス導入手段30からガス遮断バルブ30aを開放
して導入し、浮揚溶解処理室22、収納室23、材料室
21を大気圧にしてから、浮揚溶解処理室22内の円筒
ローラ16に、スターティングブロック26としての被
溶解材料と同質材の棒材、または、先端のみに同質材料
を取付けた棒材を挿入する。
In the above configuration, when performing continuous casting by operating the vacuum floating melting continuous casting apparatus, first, the floating melting processing chamber 22, the storage chamber 23, and the material supply chamber 21 are evacuated to the vacuum exhaust system 28. After evacuating by vacuum, an inert gas is introduced from the inert gas introducing means 30 by opening the gas shut-off valve 30a, and the levitation melting processing chamber 22, the storage chamber 23, and the material chamber 21 are brought to atmospheric pressure, and then levitation melting is performed. A bar of the same material as the material to be melted as the starting block 26 or a bar having the same material attached only to the tip is inserted into the cylindrical roller 16 in the processing chamber 22.

【0028】次に、るつぼ10内に導電性金属の被溶解
材を投入すると伴に、扉29を開き材料供給室21内の
溶解材料投入装置13にも供給する。この状態から、浮
揚溶解処理室22と棒材収納室23と材料供給室21と
を真空排気系28により真空排気し、所定の圧力に減圧
してから溶解作業を開始する。るつぼ10の中の被溶解
材料は交流電源12から電流を供給される誘導コイル1
1の電磁誘導によって誘起される渦電流で、誘導加熱と
電磁力による浮揚力との双方を同時に与えられ、溶けて
浮揚した溶湯10aになる。また同様に、先に挿入して
いた同質材のスターティングブロック26も棒材成形用
ダイス14内の先端部が溶けて溶湯10aと融合され
る。この状態で円筒ローラ16を駆動モータ19により
回転駆動機構19aおよび回転軸16aを介して駆動し
て、スターティングブロック26を徐々に引き出す。そ
れにつれて、溶湯10aは棒材成形用ダイス14内に導
かれ、棒材成形用ダイス14の外周を包囲する冷却ジャ
ケット15で冷却されて固化し棒材4となり引き出され
る。
Next, along with charging the material to be melted of the conductive metal into the crucible 10, the door 29 is opened and the material is also supplied to the molten material charging device 13 in the material supply chamber 21. From this state, the flotation / melting processing chamber 22, the bar storage chamber 23, and the material supply chamber 21 are evacuated by the vacuum evacuation system 28 to reduce the pressure to a predetermined pressure, and then the melting operation is started. The material to be melted in the crucible 10 is an induction coil 1 supplied with current from an AC power supply 12.
By the eddy current induced by the electromagnetic induction of No. 1, both the induction heating and the levitation force by the electromagnetic force are given simultaneously, and the molten metal 10a melts and floats. Similarly, the starting block 26 of the same material inserted earlier is also melted at the tip end in the rod forming die 14 and fused with the molten metal 10a. In this state, the cylindrical roller 16 is driven by the drive motor 19 via the rotation drive mechanism 19a and the rotation shaft 16a, and the starting block 26 is gradually pulled out. At the same time, the molten metal 10a is guided into the bar forming die 14, cooled by the cooling jacket 15 surrounding the outer periphery of the bar forming die 14, solidified and drawn out as the bar 4.

【0029】なお、溶解中はリフレクター27を旋回機
構27aでるつぼ10の上方に旋回させて、るつぼ10
からの輻射熱が上方の機器を加熱しないように熱遮蔽し
ていて、先に投入した被溶解材料が減少してきたら、前
述と逆にるつぼ10の上方からリフレクター27を旋回
機構27aで退避させた後、第一の真空仕切弁24を開
き、溶解材料投入装置13から被溶解材料を追加投入す
る。
During melting, the reflector 27 is swiveled above the crucible 10 by the swivel mechanism 27a.
When the material to be melted earlier is reduced, the reflector 27 is retracted from above the crucible 10 by the revolving mechanism 27a in the opposite manner as described above. Then, the first vacuum gate valve 24 is opened, and the material to be melted is additionally charged from the melted material charging device 13.

【0030】なお、このようにして溶解材料投入装置1
3内の被溶解材料が無くなった場合は、第一の真空仕切
弁24を閉じて材料供給室21のみに不活性ガスを注入
し大気圧に戻した後、扉29を開き溶解材料投入装置1
3に被溶解材料を供給し、再度材料供給室21のみ真空
排気した後、るつぼ10の上方からリフレクター27を
旋回機構27aで退避させ第一の真空仕切弁24を開
き、溶解材料投入装置13から被溶解材料を追加投入す
る。
The molten material charging device 1
When the material to be melted in 3 has run out, the first vacuum gate valve 24 is closed and an inert gas is injected only into the material supply chamber 21 to return to atmospheric pressure.
After the material to be melted is supplied to 3 and only the material supply chamber 21 is evacuated again, the reflector 27 is retracted from above the crucible 10 by the turning mechanism 27a, the first vacuum gate valve 24 is opened, and the melted material input device 13 Add additional material to be melted.

【0031】また、棒材成形用ダイス14で成形後、円
筒ローラ16で下方に引き出した棒材4は、所定の長さ
になったところで、円筒ローラ16の下方に配置したカ
ッター機構17で切断されて棒材収納室23に収納され
る。なおカッター機構17の駆動源には油圧シリンダー
18を使用している。棒材収納室23内に所定量の棒材
4が収納されると連続鋳造を中断して、浮揚溶解処理室
22と棒材収納室23との間の第二の真空仕切弁25を
閉鎖して、棒材収納室23に接続された遮断バルブ28
aを閉鎖してこの室の真空引きを遮断してから棒材収納
室23に接続したガス遮断バルブ30aを開放して不活
性ガス導入手段30から不活性ガスを導入して棒材収納
室23内を大気圧と略同じにしてから棒材収納室23を
分離して棒材4を搬出し、空になった棒材収納室23を
第二の真空仕切弁25の下方の分離した個所に装着す
る。次に、棒材収納室23に接続されたガス遮断バルブ
30aを閉鎖して、同じ棒材収納室23に接続された遮
断バルブ28aを開放して、棒材収納室23内を所定の
真空度に真空引きした後、第二の真空仕切弁25を開放
して、連続鋳造を再会する。
Further, after the rod 4 is formed by the rod forming die 14 and pulled downward by the cylindrical roller 16, the rod 4 is cut by a cutter mechanism 17 disposed below the cylindrical roller 16 when the rod 4 has a predetermined length. Then, it is stored in the bar storage chamber 23. Note that a hydraulic cylinder 18 is used as a drive source of the cutter mechanism 17. When a predetermined amount of the bar 4 is stored in the bar storage chamber 23, continuous casting is interrupted, and the second vacuum gate valve 25 between the flotation processing chamber 22 and the bar storage chamber 23 is closed. And the shut-off valve 28 connected to the bar storage chamber 23.
is closed and the evacuation of this chamber is cut off, and then the gas shut-off valve 30a connected to the rod storage chamber 23 is opened to introduce an inert gas from the inert gas introduction means 30 and to store the rod storage chamber 23. After the inside of the chamber is substantially equal to the atmospheric pressure, the bar storage chamber 23 is separated and the bar 4 is carried out, and the emptied bar storage chamber 23 is placed in a separated place below the second vacuum gate valve 25. Installing. Next, the gas shutoff valve 30a connected to the bar storage chamber 23 is closed, and the shutoff valve 28a connected to the same bar storage chamber 23 is opened, so that the inside of the bar storage chamber 23 has a predetermined degree of vacuum. Then, the second vacuum gate valve 25 is opened, and the continuous casting is resumed.

【0032】図3はこの発明の別の実施の形態の主要部
の構成図を示す。この図2と図1との違いは、収納室2
3内に、下段にガイドローラ32と、巻取り機構33と
を備えたことである。図において、主要構成部品および
機能は、図1に示した構成図と同様であるので説明は省
略する。図4に、円筒ローラ16による棒材引出し状態
図を示す。図において、対向する二対の円筒ローラ16
が各々逆回転することにより、該円筒ローラ16に挟ま
れた棒材4を上下に移動することができる。即ち、溶解
前の準備操作では、種材となる被溶解材料と同質の材料
または先端のみ同質材料を取付けた棒材(スターティン
グブロック26)を前記円筒ローラ16に挟み込み上昇
させ、るつぼ10底部流出口10b内の棒材成形用ダイ
ス14内に挿入して待機する。また、棒材引出しの際は
円筒ローラ16により下降させる。
FIG. 3 is a block diagram of a main part of another embodiment of the present invention. The difference between FIG. 2 and FIG.
3, a guide roller 32 and a winding mechanism 33 are provided at the lower stage. In the figure, main components and functions are the same as those in the configuration diagram shown in FIG. FIG. 4 shows a drawing state of the rod material with the cylindrical roller 16. In the figure, two pairs of opposed cylindrical rollers 16 are shown.
By rotating in the opposite directions, the bar 4 sandwiched between the cylindrical rollers 16 can be moved up and down. That is, in the preparatory operation before melting, a rod (starting block 26) of the same material as the material to be melted or a material having only the same material attached only at the tip is sandwiched between the cylindrical rollers 16 and raised, so that the crucible 10 flows downward. It is inserted into the bar forming die 14 in the outlet 10b and stands by. When the bar is pulled out, it is lowered by the cylindrical roller 16.

【0033】図5は円筒ローラ16を回転する回転駆動
機構部の詳細図である。図において、二対の駆動ギヤ3
4が二つのアイドルギヤ35を介して噛み合わされて、
上下に配置してあり、その中の一つの駆動ギヤに駆動モ
ータ19が接続されている。かかる構成で駆動ギヤ34
を回転させると対向したギヤが逆転し、且つアイドルギ
ヤ35を介して上下に配置したもう一対の駆動ギヤ34
も同様に回転駆動する構造としている。
FIG. 5 is a detailed view of the rotation drive mechanism for rotating the cylindrical roller 16. In the figure, two pairs of drive gears 3
4 meshes via two idle gears 35,
The drive motor 19 is connected to one of the drive gears. With such a configuration, the driving gear 34
When the gear is rotated, the opposing gear reverses, and another pair of driving gears 34 arranged vertically through the idle gear 35.
Also has a structure that is driven to rotate.

【0034】[0034]

【発明の効果】この発明によれば、真空容器内に良導電
金属製のセグメントが周方向に絶縁板を介して積層され
てなる有底円筒状のるつぼと、るつぼの外径側を囲むよ
うに設置した誘導コイルと、るつぼの上部から、導電製
の被溶解材を投入する溶解材料投入装置と、るつぼの底
部流出口に具備された棒材成形用ダイスとダイスの下方
に棒材を挟むように対向して配置した円筒ローラと該円
筒ローラを駆動する回転駆動機構と棒材成形用ダイスで
成形した棒材を切断するカッター装置と切断した棒材を
収納する収納容器を備えた構造としたことにより、一つ
の真空容器内で材料供給から溶解作業および棒材成形作
業までを連続して行うことが可能になり、ゴミ、埃、不
純ガス等の混入の少ないより高純度の棒材成形作業の棒
状金属材料が得られる効果がる。
According to the present invention, a bottomed cylindrical crucible in which segments made of a good conductive metal are laminated in a vacuum vessel in a circumferential direction via an insulating plate, and the outer periphery of the crucible is surrounded. An induction coil installed in a crucible, a melting material charging device for charging a conductive material to be melted from the top of the crucible, a bar forming die provided at a bottom outlet of the crucible, and a bar sandwiched under the die. A cylindrical roller disposed in such a manner as to face the same, a rotary drive mechanism for driving the cylindrical roller, a cutter device for cutting a bar formed by a bar forming die, and a storage container for storing the cut bar. As a result, it is possible to continuously perform the operations from material supply to melting operation and bar material forming operation in one vacuum vessel, and to form a higher purity bar material with less contamination of dust, dust, impurity gas, etc. Working rod-shaped metal material obtained That effect want.

【0035】また、るつぼ上部にるつぼ開口部を開閉移
動可能なリフレクターを配置したことにより、溶解中の
輻射熱を遮り、真空容器上部が加熱されるのを防ぐ効果
がある。さらに、真空容器を溶解材料供給室と浮揚溶解
処理室と棒材収納室の3室に真空仕切弁で分離し、各々
の真空室を独立して真空排気および圧力制御を可能とし
たことにより、先ず、真空室の容積を用途にみあった最
適の大きさ、最適な圧力とすることができ、その結果、
真空排気ポンプの容量も小さくする効果がある。
Further, by disposing a reflector at the top of the crucible capable of opening and closing the opening of the crucible, it has the effect of blocking radiant heat during melting and preventing the upper portion of the vacuum vessel from being heated. Furthermore, the vacuum container is separated into three chambers of a molten material supply chamber, a flotation melting processing chamber, and a rod material storage chamber by a vacuum gate valve, and each vacuum chamber can be independently evacuated and pressure controlled, so that First, the volume of the vacuum chamber can be set to the optimal size and the optimal pressure according to the application. As a result,
This has the effect of reducing the capacity of the vacuum pump.

【0036】また、溶解作業中でも、新しい材料の供給
が可能であり、真空浮揚溶解連続鋳造による棒材引出し
が可能になる。さらに、棒材収納室を着脱可能にするこ
とによりワークの取り出しを容易にすることができる。
また、棒材収納室ユニット交換が容易にでき生産性を向
上することができる。さらに、るつぼ底部の流出口に装
着した棒材成形用ダイスの外周を包囲して冷却する冷却
ジャケットに供給する冷却水を温調ユニットを介して、
温度制御することにより成形材料にみあった最適冷却温
度にすることができ金属材料の組成に及ぼす影響を考慮
すると伴に棒材成形用ダイスから引き出す時の固化状態
による製品欠陥への影響を少なくする効果がある。
Further, even during the melting operation, it is possible to supply a new material, and it is possible to pull out the bar by vacuum floating melting continuous casting. Furthermore, the work can be easily taken out by making the bar storage chamber detachable.
Further, the bar storage room unit can be easily replaced, and the productivity can be improved. Further, through a temperature control unit, cooling water to be supplied to a cooling jacket that surrounds and cools the outer periphery of the bar material forming die mounted on the outlet at the bottom of the crucible,
By controlling the temperature, the optimum cooling temperature suitable for the molding material can be obtained, and the effect on the composition of the metal material is taken into account, and the influence of the solidification state when pulled out from the bar forming die on product defects is reduced. Has the effect of doing

【0037】また、円筒ローラの回転駆動制御を一台の
モータで制御する方式としたことにより低価格の引出し
機構を提供することができる。さはに、速度制御等も容
易であり最適な棒材引出し制御を提供することができ
る。また、3室を分離したことにより、メンテナンス時
でも全室を大気にさらすことがなく、清浄な環境を維持
することができる。
Further, by adopting a system in which the rotational drive control of the cylindrical roller is controlled by one motor, a low-cost drawing mechanism can be provided. In addition, speed control and the like are easy, and optimal bar withdrawal control can be provided. In addition, since the three chambers are separated, a clean environment can be maintained without exposing all the chambers to the atmosphere even during maintenance.

【図面の簡単な説明】[Brief description of the drawings]

【図1】この発明の実施の形態の主要部分の構成図FIG. 1 is a configuration diagram of a main part of an embodiment of the present invention.

【図2】図1の浮揚溶解炉および浮揚溶解炉回りの機器
の構成図
FIG. 2 is a configuration diagram of a flotation melting furnace and equipment around the flotation melting furnace of FIG. 1;

【図3】この発明の別の実施の形態の主要部分の構成図FIG. 3 is a configuration diagram of a main part of another embodiment of the present invention.

【図4】円筒ローラによる棒材引出し状態図FIG. 4 is a drawing showing a state in which a bar is pulled out by a cylindrical roller.

【図5】円筒ローラを回転する回転駆動機構部の詳細図FIG. 5 is a detailed view of a rotation drive mechanism that rotates a cylindrical roller.

【図6】従来例の構成図FIG. 6 is a configuration diagram of a conventional example.

【符号の説明】[Explanation of symbols]

4 棒材 10 るつぼ 10a 溶湯 10b 流出口 10c マニホールド 11 誘導コイル 12 交流電源 12a 絶縁フランジ 13 溶解材料投入装置 14 棒材成形用ダイス 15 冷却器 16 円筒ローラ 16a 回転軸 16b 軸受け 16c 真空フランジ 16d 冷却水給排水口 17 カッター装置 17a 真空シールフランジ 18 油圧シリンダー 19 駆動モータ 19a 回転駆動機構 20 浮揚溶解炉 21 材料供給室 22 浮揚溶解処理室 23 棒材収納室 24 第一の真空仕切弁 25 第二の真空仕切弁 26 スターティングブロック 27 リフレクター 27a リフレクター旋回機構 28 真空排気系 28a 遮断バルブ 29 扉 30 不活性ガス導入手段 30a ガス遮断バルブ 31 温調ユニット 32 ガイドローラ 33 巻取り機構 34 駆動ギヤ 35 アイドルギヤ Reference Signs List 4 rod material 10 crucible 10a molten metal 10b outlet 10c manifold 11 induction coil 12 AC power supply 12a insulating flange 13 molten material charging device 14 rod forming die 15 cooler 16 cylindrical roller 16a rotating shaft 16b bearing 16c vacuum flange 16d cooling water supply / drainage Mouth 17 Cutter device 17a Vacuum seal flange 18 Hydraulic cylinder 19 Drive motor 19a Rotary drive mechanism 20 Floating melting furnace 21 Material supply chamber 22 Floating melting processing chamber 23 Bar material storage chamber 24 First vacuum gate valve 25 Second vacuum gate valve 26 Starting block 27 Reflector 27a Reflector turning mechanism 28 Vacuum exhaust system 28a Shut-off valve 29 Door 30 Inert gas introduction means 30a Gas shut-off valve 31 Temperature control unit 32 Guide roller 33 Winding mechanism 34 Drive Gear 35 idle gear

Claims (8)

【特許請求の範囲】[Claims] 【請求項1】良導電金属製のセグメントを周方向に絶縁
物を介して積層し底部に流出口を形成した金属るつぼ、
および該るつぼの外周に巻回された誘導コイルを有する
浮揚溶解炉と、上端部を該流出口に装着して流出口の下
部で外周側を冷却器で包囲して冷却し、その中を通過す
る溶湯を冷却して凝固させる棒材成形用ダイスと、鋳造
時に前記棒材成形用ダイスにより鋳造された棒材を引き
抜く水冷式の円筒ローラと、前記円筒ローラから引き抜
かれた棒材を所定長さに切断するカッター装置とを真空
容器内に収納した浮揚溶解処理室を設けて、前記浮揚溶
解処理室の上部に前記浮揚溶解処理室と気密に密接した
真空容器で構成し、前記るつぼ内に導電性の被溶解材を
投入する溶解材料投入装置を収納した材料供給室を設け
るとともに、前記浮揚溶解処理室の下部に前記浮揚溶解
処理室と気密に密接した真空容器で構成し、前記カッタ
ー装置で切断した棒材を収納する棒材収納室を設けたこ
とを特徴とする真空浮揚溶解連続鋳造装置。
1. A metal crucible in which segments made of a good conductive metal are laminated in the circumferential direction via an insulator and an outlet is formed at the bottom.
And a flotation melting furnace having an induction coil wound around the outer periphery of the crucible, and an upper end attached to the outlet, surrounding the outer peripheral side with a cooler at a lower portion of the outlet, cooling, and passing through the inside. A rod-forming die for cooling and solidifying the molten metal to be melted, a water-cooled cylindrical roller for pulling out the rod cast by the rod-forming die during casting, and a rod drawn for a predetermined length from the cylindrical roller. A fusing and melting processing chamber containing a cutter device for cutting into a vacuum vessel is provided in a vacuum vessel, and a vacuum vessel is provided in an upper part of the flotation and melting processing chamber in a vacuum-tight manner in close contact with the flotation and melting processing chamber, and the A cutter provided with a material supply chamber accommodating a dissolving material charging device for charging a conductive material to be melted, and a vacuum vessel provided in a lower part of the floating melting processing chamber in airtight tight contact with the floating melting processing chamber; Cut at Vacuum levitation dissolution continuous casting apparatus characterized in that a rod storage chamber for accommodating a timber.
【請求項2】請求項1記載の真空浮揚溶解連続鋳造装置
において、被溶解材をるつぼ内に投入する材料供給室
と、浮揚溶解処理室との間を開閉可能に仕切る第一の真
空仕切弁を設けるとともに、浮揚溶解処理室と、棒材収
納室との間を開閉可能に仕切る第二の真空仕切弁を設け
て、真空容器内を、材料供給室と、浮揚溶解処理室と、
棒材収納室との各々独立した3室に分割したことを特徴
とする真空浮揚溶解連続鋳造装置。
2. The vacuum flotation continuous casting apparatus according to claim 1, wherein a first vacuum gate valve for opening and closing a material supply chamber for charging the material to be melted into the crucible and a flotation melting processing chamber. And, a floating melting treatment chamber, and a second vacuum gate valve that opens and closes between the bar storage chamber is provided, inside the vacuum vessel, a material supply chamber, a floating melting treatment chamber,
A vacuum levitation melting continuous casting apparatus characterized by being divided into three independent chambers each having a bar storage chamber.
【請求項3】請求項1ないし請求項2記載の真空浮揚溶
解連続鋳造装置において、るつぼ上方に、るつぼ上部開
口部を開閉可能に覆い溶湯からの輻射熱を遮蔽するリフ
レクターを設けたことを特徴とする真空浮揚溶解連続鋳
造装置。
3. The continuous casting apparatus according to claim 1, further comprising a reflector provided above the crucible so as to open and close the upper opening of the crucible to shield radiant heat from the molten metal. Flotation continuous casting equipment.
【請求項4】請求項1ないし請求項3のいずれかに記載
の真空浮揚溶解連続鋳造装置において、水冷式の円筒ロ
ーラおよび冷却ジャケットの冷却水温度を制御する温調
ユニットを設けたことを特徴とする真空浮揚溶解連続鋳
造装置。
4. The vacuum flotation continuous casting apparatus according to claim 1, further comprising a water-cooled cylindrical roller and a temperature control unit for controlling a cooling water temperature of the cooling jacket. Vacuum flotation continuous casting equipment.
【請求項5】請求項1ないし請求項4のいずれかに記載
の真空浮揚溶解連続鋳造装置において、材料供給室、浮
揚溶解処理室および棒材収納室の各室に、単独で不活性
ガスを供給できる不活性ガス導入手段を設けたことを特
徴とする真空浮揚溶解連続鋳造装置。
5. The vacuum flotation continuous casting apparatus according to claim 1, wherein an inert gas is independently supplied to each of the material supply chamber, the flotation processing chamber, and the rod storage chamber. A vacuum levitation melting continuous casting apparatus comprising an inert gas introducing means capable of supplying the same.
【請求項6】請求項1ないし請求項5のいずれかに記載
の真空浮揚溶解連続鋳造装置において、材料供給室、浮
揚溶解処理室および棒材収納室の各々が単独で真空排気
および圧力制御ができるようにしたことを特徴とする真
空浮揚溶解連続鋳造装置。
6. The vacuum flotation continuous casting apparatus according to any one of claims 1 to 5, wherein each of the material supply chamber, the flotation processing chamber, and the rod storage chamber independently performs vacuum evacuation and pressure control. A vacuum levitation melting continuous casting apparatus characterized by being made possible.
【請求項7】材料供給室、および浮揚溶解処理室、棒材
収納室の全室を大気圧にして、第一および第二の真空仕
切弁を開放して、浮揚溶解処理室の円筒ローラに棒材と
同じ断面形状のスターティングブロックを挟んで円筒ロ
ーラを駆動してスターティングブロックを棒材成形用ダ
イス内に装着し、るつぼに溶解材料を供給するととも
に、材料供給室の扉を開け室内の溶解材料投入装置に導
電性の被溶解材料を供給し、材料供給後は、真空排気系
により、三室共に所定の真空度にまで真空引きし、前記
材料を浮揚溶解して、溶解完了後は円筒ローラを駆動し
てスターティングブロックを下降させながら溶湯をダイ
ス内に連続鋳造して、前記ダイスで冷却して凝固させて
棒材にして下方に引き抜き棒材が所定長さに達する毎に
カッター装置で切断して棒材収納室に切断した棒材を収
納し、棒材収納室内に所定量の棒材が収納されると連続
鋳造を中止して、浮揚溶解処理室と棒材収納室との間の
第二の真空仕切弁を閉鎖して、棒材収納室内に不活性ガ
スを導入して棒材収納室内を大気圧と略同じにしてから
棒材収納室を分離して棒材を搬出し、空の棒材収納室を
浮揚溶解処理室の下側に装着して、棒材収納室内を所定
の真空度に真空引きした後、第二の真空仕切弁を開放し
て、連続鋳造を再会するようにしたことを特徴とする真
空浮揚溶解連続鋳造方法。
7. The material supply chamber, the flotation / melting processing chamber, and the bar material storage chamber are all set to atmospheric pressure, the first and second vacuum gate valves are opened, and the cylindrical roller of the flotation / melting processing chamber is opened. Drive the cylindrical roller between the starting blocks having the same cross-sectional shape as the bar, mount the starting blocks in the bar forming dies, supply the melting material to the crucible, open the material supply chamber door, and open the room. The conductive material to be melted is supplied to the melted material charging device, and after the material is supplied, the three chambers are evacuated to a predetermined degree of vacuum by a vacuum exhaust system, and the material is floated and melted. While the cylindrical roller is driven and the starting block is lowered, the molten metal is continuously cast in a die, cooled and solidified by the die into a bar, and the bar is drawn downward. Cutting by device Then, when a predetermined amount of bar is stored in the bar storage chamber, continuous casting is stopped, and the cut between the floating melting processing chamber and the bar storage chamber is stopped. The second vacuum gate valve is closed, an inert gas is introduced into the bar storage chamber to make the bar storage chamber approximately the same as the atmospheric pressure, the bar storage chamber is separated, and the bar is carried out. The bar storage chamber is attached to the lower side of the flotation processing chamber, and the bar storage chamber is evacuated to a predetermined degree of vacuum. Then, the second vacuum gate valve is opened to rejoin the continuous casting. A vacuum levitation melting continuous casting method characterized in that:
【請求項8】請求項7記載の真空浮揚溶解連続鋳造方法
において、連続鋳造中に溶解材料を所定量づつ連続して
るつぼに供給して連続溶解して、材料供給室内の溶解材
料が不足すると、第一の真空仕切弁を閉鎖して、材料供
給室内に不活性ガスを供給して、該室内を大気圧と略同
圧にした後、材料供給室の扉を開け室内の溶解材料投入
装置に導電性の被溶解材料を供給し、材料供給後は、真
空排気系により、該材料供給室内を真空引きして、所定
の真空度に達した後第一の真空仕切弁を開放して前記る
つぼへの溶解材料の供給を再開して連続溶解連続鋳造を
行うようにしたことを特徴とする真空浮揚溶解連続鋳造
方法。
8. The method according to claim 7, wherein the molten material is continuously supplied to the crucible by a predetermined amount during continuous casting, and the molten material is continuously melted. After closing the first vacuum gate valve and supplying an inert gas into the material supply chamber to make the chamber approximately the same pressure as the atmospheric pressure, the door of the material supply chamber is opened and the molten material charging device in the chamber is opened. After supplying the conductive material to be melted, after the material is supplied, the material supply chamber is evacuated by a vacuum exhaust system, and after reaching a predetermined degree of vacuum, the first vacuum gate valve is opened to open the material. A continuous fusing and melting continuous casting method characterized by resuming the supply of the molten material to the crucible and performing continuous melting and continuous casting.
JP34515997A 1997-12-15 1997-12-15 Vacuum float-up melting and continuous casting apparatus and method thereof Withdrawn JPH11179499A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP34515997A JPH11179499A (en) 1997-12-15 1997-12-15 Vacuum float-up melting and continuous casting apparatus and method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34515997A JPH11179499A (en) 1997-12-15 1997-12-15 Vacuum float-up melting and continuous casting apparatus and method thereof

Publications (1)

Publication Number Publication Date
JPH11179499A true JPH11179499A (en) 1999-07-06

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ID=18374689

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
JP (1) JPH11179499A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1048806A2 (en) 1999-04-27 2000-11-02 Haneda Humepipe Co., Ltd. Key hole insertion for manhole and manhole cover locking apparatus equipped with the key hole insertion and manhole cover locking system and unlocking method and manhole cover opening and closing control system
KR100388808B1 (en) * 2000-10-31 2003-06-25 한국전력공사 Uranium foil having fine grains solidified rapidly from melt by cooling roll directly, and the fabrication apparatus and the fabrication process
US6793005B2 (en) * 2002-06-24 2004-09-21 Korea Atomic Energy Research Institute Method and apparatus for continuously casting uranium rod
KR100467440B1 (en) * 2002-07-30 2005-01-24 한국수력원자력 주식회사 Cutting apparatus of uranium rod
KR100470935B1 (en) * 2002-07-30 2005-02-21 한국수력원자력 주식회사 Transfer apparatus of uranium rod
KR100485926B1 (en) * 2002-06-24 2005-04-29 한국수력원자력 주식회사 Method and apparatus for Continuous casting of uranium rod
JP2014172093A (en) * 2013-03-05 2014-09-22 Rti Internat Metals Inc Method of making long ingots by cutting in furnace
JP2014172092A (en) * 2013-03-05 2014-09-22 Rti Internat Metals Inc Continuous casting furnace for long ingot casting
CN112139511A (en) * 2020-09-29 2020-12-29 长沙新材料产业研究院有限公司 Continuous feeding device and method for gas atomization powder preparation
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1048806A2 (en) 1999-04-27 2000-11-02 Haneda Humepipe Co., Ltd. Key hole insertion for manhole and manhole cover locking apparatus equipped with the key hole insertion and manhole cover locking system and unlocking method and manhole cover opening and closing control system
KR100388808B1 (en) * 2000-10-31 2003-06-25 한국전력공사 Uranium foil having fine grains solidified rapidly from melt by cooling roll directly, and the fabrication apparatus and the fabrication process
US6793005B2 (en) * 2002-06-24 2004-09-21 Korea Atomic Energy Research Institute Method and apparatus for continuously casting uranium rod
KR100485926B1 (en) * 2002-06-24 2005-04-29 한국수력원자력 주식회사 Method and apparatus for Continuous casting of uranium rod
KR100467440B1 (en) * 2002-07-30 2005-01-24 한국수력원자력 주식회사 Cutting apparatus of uranium rod
KR100470935B1 (en) * 2002-07-30 2005-02-21 한국수력원자력 주식회사 Transfer apparatus of uranium rod
JP2014172093A (en) * 2013-03-05 2014-09-22 Rti Internat Metals Inc Method of making long ingots by cutting in furnace
JP2014172092A (en) * 2013-03-05 2014-09-22 Rti Internat Metals Inc Continuous casting furnace for long ingot casting
CN112139511A (en) * 2020-09-29 2020-12-29 长沙新材料产业研究院有限公司 Continuous feeding device and method for gas atomization powder preparation
CN114623687A (en) * 2022-03-18 2022-06-14 西安聚能高温合金材料科技有限公司 Device and method for removing dross in molten pool in vacuum induction melting
CN114623687B (en) * 2022-03-18 2024-04-02 西安聚能高温合金材料科技有限公司 Device and method for removing scum in molten pool in vacuum induction smelting

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