JPH04314851A - Die for casting copper alloy - Google Patents
Die for casting copper alloyInfo
- Publication number
- JPH04314851A JPH04314851A JP3079771A JP7977191A JPH04314851A JP H04314851 A JPH04314851 A JP H04314851A JP 3079771 A JP3079771 A JP 3079771A JP 7977191 A JP7977191 A JP 7977191A JP H04314851 A JPH04314851 A JP H04314851A
- Authority
- JP
- Japan
- Prior art keywords
- die
- mold
- porous
- casting
- alloy
- 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.)
- Granted
Links
- 238000005266 casting Methods 0.000 title claims abstract description 38
- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 28
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000000919 ceramic Substances 0.000 claims abstract description 23
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- 239000000395 magnesium oxide Substances 0.000 claims description 6
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 16
- 239000000956 alloy Substances 0.000 abstract description 16
- 239000002245 particle Substances 0.000 abstract description 12
- 229910018487 Ni—Cr Inorganic materials 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 238000007750 plasma spraying Methods 0.000 abstract description 4
- 229910000906 Bronze Inorganic materials 0.000 abstract description 2
- 239000010974 bronze Substances 0.000 abstract description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 239000010410 layer Substances 0.000 description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 239000011651 chromium Substances 0.000 description 7
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 230000035939 shock Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000009413 insulation Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 229910052804 chromium Inorganic materials 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000007872 degassing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 238000004663 powder metallurgy Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は銅合金鋳造用金型に係り
、特に、高融点の銅合金を金型鋳造することが可能な銅
合金鋳造用金型に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold for casting a copper alloy, and more particularly to a mold for casting a copper alloy that is capable of casting a copper alloy with a high melting point.
【０００２】0002
【従来の技術】従来、銅合金の鋳造において、黄銅のよ
うに鋳造温度が約１０００℃程度のものは、ベリリウム
銅又はダイス鋼等の金型が用いられている。これに対し
て、青銅のように約１２００℃程度で鋳造を行なうもの
は、鋳造温度が高く、金型を使用することができないこ
とから、砂型が用いられている。BACKGROUND OF THE INVENTION Conventionally, in the casting of copper alloys, molds made of beryllium copper or die steel have been used for materials such as brass whose casting temperature is approximately 1000°C. On the other hand, for materials such as bronze, which are cast at about 1200° C., sand molds are used because the casting temperature is high and metal molds cannot be used.
【０００３】しかしながら、砂型は金型に比べて生産効
率が悪いという欠点がある。一方、金型は、鋳造時のガ
ス抜けが悪く、得られる鋳物にボイドなどの欠陥が生じ
易いという欠点がある。However, sand molds have the disadvantage that production efficiency is lower than that of metal molds. On the other hand, molds have the drawback that gas release during casting is poor and defects such as voids are likely to occur in the resulting castings.
【０００４】このような問題を解決するものとして、金
型の内壁にイットリア（Ｙ２ Ｏ３ ）２〜１０％を含
み、残部がジルコニア（ＺｒＯ２ ）のセラミックス被
覆を施した改良金型が提案されている（特開平２−２７
０９５３）。To solve this problem, an improved mold has been proposed in which the inner wall of the mold is coated with a ceramic containing 2 to 10% yttria (Y2O3), with the remainder being zirconia (ZrO2). (Unexamined Japanese Patent Publication No. 2-27
0953).
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、特開平
２−２７０９５３の金型では、内壁のセラミックス被覆
層に、銅と反応し易いＹ２ Ｏ３を含むため、高融点の
銅合金の鋳造には使用することができないという欠点が
ある。[Problems to be Solved by the Invention] However, in the mold of JP-A-2-270953, the ceramic coating layer on the inner wall contains Y2O3, which easily reacts with copper, so it cannot be used for casting high melting point copper alloys. The disadvantage is that it cannot be done.
【０００６】本発明は上記従来の問題点を解決し、高融
点の銅合金にも有効な銅合金鋳造用金型を提供すること
を目的とする。An object of the present invention is to solve the above-mentioned conventional problems and to provide a copper alloy casting mold that is effective even for high melting point copper alloys.
【０００７】[0007]
【課題を解決するための手段】本発明の銅合金鋳造用金
型は、金型本体の型面に多孔質ＺｒＯ２ 質セラミック
ス溶射被膜を形成してなる銅合金鋳造用金型において、
該ＺｒＯ２ 質セラミックスの組成が酸化ジルコニウム
９０〜９８重量％、酸化マグネシウム（ＭｇＯ）及び／
又は酸化カルシウム（ＣａＯ）１０〜２重量％であるこ
とを特徴とする。[Means for Solving the Problems] The copper alloy casting mold of the present invention is a copper alloy casting mold in which a porous ZrO2 ceramic spray coating is formed on the mold surface of the mold body.
The composition of the ZrO2 ceramic is 90 to 98% by weight of zirconium oxide, magnesium oxide (MgO) and/or
Or, it is characterized by containing 10 to 2% by weight of calcium oxide (CaO).
【０００８】以下に本発明を詳細に説明する。本発明の
銅合金鋳造用金型は金型本体の型面、即ち、合金溶湯と
接する面に、多孔質ＺｒＯ２ 質セラミックス溶射被覆
を形成したものであるが、この溶射被膜を構成するＺｒ
Ｏ２ 質セラミックスは、安定剤としてＣａＯ及び／又
はＭｇＯを２〜１０重量％含有し、９０〜９８重量％、
好ましくは残部が実質的にＺｒＯ２のものである。この
ＣａＯ及び／又はＭｇＯの含有率が１０重量％を超える
と、被膜の耐食性が悪くなり、２重量％未満では耐熱衝
撃性が悪くなる。The present invention will be explained in detail below. The copper alloy casting mold of the present invention has a porous ZrO2 ceramic sprayed coating formed on the mold surface of the mold body, that is, the surface in contact with the molten alloy.
O2 quality ceramics contain 2 to 10% by weight of CaO and/or MgO as a stabilizer, 90 to 98% by weight,
Preferably, the balance is essentially ZrO2. If the CaO and/or MgO content exceeds 10% by weight, the corrosion resistance of the coating will deteriorate, and if it is less than 2% by weight, the thermal shock resistance will deteriorate.
【０００９】この多孔質ＺｒＯ２ 質セラミックス溶射
被膜の厚さは、厚過ぎると型面の耐熱衝撃性が悪くなり
、薄過ぎると十分な断熱効果が得られず、金型の寿命が
短くなることから、２０〜３００μｍ程度とするのが好
ましい。[0009] The thickness of this porous ZrO2 ceramic sprayed coating is determined because if it is too thick, the thermal shock resistance of the mold surface will deteriorate, and if it is too thin, sufficient heat insulation effect will not be obtained and the life of the mold will be shortened. , preferably about 20 to 300 μm.
【００１０】このような多孔質ＺｒＯ２ 質セラミック
ス溶射被膜は、例えば、金型本体の型面にＺｒＯ２ 質
セラミックスをプラズマ溶射することにより容易に形成
することができる。なお、溶射にあたり、セラミックス
粒子の粒径は溶射層の接着強度の面から１００μｍ以下
であることが好ましく、また、通気性のある良好な多孔
質層とするために１０μｍ以上であることが好ましい。[0010] Such a porous ZrO2 ceramic sprayed coating can be easily formed, for example, by plasma spraying ZrO2 ceramic onto the mold surface of the mold body. In thermal spraying, the particle size of the ceramic particles is preferably 100 μm or less in terms of adhesive strength of the thermal sprayed layer, and preferably 10 μm or more in order to obtain a porous layer with good air permeability.
【００１１】このような多孔質ＺｒＯ２ 質セラミック
ス溶射被膜は、金型本体に直接形成することも可能では
あるが、好ましくは、金型本体と多孔質ＺｒＯ２ 質セ
ラミックス溶射被膜との接着性の向上、及び、金型本体
と多孔質ＺｒＯ２ 質セラミックス溶射被膜との熱膨張
差の緩和のための中間層として、予め、両者との濡れ性
の良い多孔質ニッケル（Ｎｉ）−クロム（Ｃｒ）合金又
はＮｉ溶射層を形成し、この中間層上に形成する。ここ
で、Ｎｉ−Ｃｒ合金としては、Ｃｒを０〜５０重量％含
有するもの、特に８０重量％Ｎｉ−２０重量％Ｃｒ合金
が好ましい。このようなＮｉ−Ｃｒ合金溶射層もプラズ
マ溶射により容易に形成することができ、その場合、用
いるＮｉ−Ｃｒ合金の粒子の粒径は、前述のセラミック
粒子の粒径範囲と同様の理由から、１０〜１００μｍで
あることが好ましい。Although it is possible to form such a porous ZrO2 ceramic sprayed coating directly on the mold body, it is preferable to improve the adhesion between the mold body and the porous ZrO2 ceramic sprayed coating. As an intermediate layer to alleviate the difference in thermal expansion between the mold body and the porous ZrO2 ceramic sprayed coating, a porous nickel (Ni)-chromium (Cr) alloy or Ni which has good wettability with both the mold body and the porous ZrO2 ceramic sprayed coating is prepared in advance. A thermally sprayed layer is formed on the intermediate layer. Here, the Ni-Cr alloy preferably contains 0 to 50% by weight of Cr, particularly an 80% by weight Ni-20% by weight Cr alloy. Such a Ni-Cr alloy sprayed layer can also be easily formed by plasma spraying, and in that case, the particle size of the Ni-Cr alloy particles used is within the range of the particle size of the ceramic particles for the same reason as the above-mentioned particle size range of the ceramic particles. It is preferable that it is 10-100 micrometers.
【００１２】このＮｉ−Ｃｒ合金溶射層の厚さは、薄過
ぎると中間層を形成することにより十分な熱膨張差緩和
効果が得られず、厚過ぎるとＮｉ−Ｃｒ合金は、断熱性
や靱性が低いことから金型特性の低下を招く。従って、
多孔質Ｃｒ−Ｎｉ合金溶射層の厚さは２０〜１００μｍ
程度とするのが好ましい。If the thickness of this Ni-Cr alloy thermal spray layer is too thin, a sufficient effect of alleviating the difference in thermal expansion will not be obtained due to the formation of an intermediate layer, and if it is too thick, the Ni-Cr alloy will have poor heat insulation properties and toughness. The low temperature leads to deterioration of mold characteristics. Therefore,
The thickness of the porous Cr-Ni alloy sprayed layer is 20 to 100 μm
It is preferable to set it as approximately.
【００１３】本発明において、金型本体は、粉末冶金に
より製造された多孔質合金金型本体であることが好まし
い。しかして、その合金組成は、Ｎｉ，Ｃｒ，Ｗ，Ｍｏ
，Ｖ及びＣｏを１５重量％以上、Ｃを０．６重量％以下
含有し、残部がＦｅのもの、若しくはＣｒ，Ｗ，Ｍｏ，
Ｖ，Ｃｏを添加したＮｉ基合金が好ましい。特に、高融
点の銅合金の鋳造に用いる場合には、下記組成のものが
好適である。
Ｎｉ：３０〜８０重量％
Ｃｒ：１〜３０重量％
Ｗ ：１０重量％以下
Ｍｏ：１０重量％以下
Ｖ ：５重量％以下
Ｃｏ：３０重量％以下
Ｃ ：０．６重量％以下
Ｆｅ：残部
上記合金成分のうち、Ｎｉは靱性を付与し、Ｃｒは耐酸
化性を高め、Ｗ，Ｍｏは熱膨張を小さくし、Ｖ，Ｃｏは
硬度を高める作用を奏する。In the present invention, the mold body is preferably a porous alloy mold body manufactured by powder metallurgy. However, the alloy composition is Ni, Cr, W, Mo
, containing 15% by weight or more of V and Co, and 0.6% by weight or less of C, with the balance being Fe, or Cr, W, Mo,
A Ni-based alloy to which V and Co are added is preferred. In particular, when used for casting high melting point copper alloys, those having the following composition are suitable. Ni: 30 to 80 wt% Cr: 1 to 30 wt% W: 10 wt% or less Mo: 10 wt% or less V: 5 wt% or less Co: 30 wt% or less C: 0.6 wt% or less Fe: Remainder above Among the alloy components, Ni provides toughness, Cr increases oxidation resistance, W and Mo reduce thermal expansion, and V and Co increase hardness.
【００１４】なお、上記組成の合金は、靱性が低く、熱
衝撃に弱いが、金型本体を多孔質とすることにより、こ
のような不具合を克服することができる。もとより、金
型本体を多孔質とすることにより、脱ガス作用が改善さ
れ、ボイドなどの欠陥のない鋳物を確実に得ることが可
能とされる。[0014]Although the alloy having the above composition has low toughness and is susceptible to thermal shock, such problems can be overcome by making the mold body porous. Of course, by making the mold body porous, the degassing effect is improved and it is possible to reliably obtain a casting free of defects such as voids.
【００１５】このような多孔質金型本体の気孔率は、通
気性と強度との兼合いから２０〜４０％程度が望ましい
。また、このような多孔質金型本体を粉末冶金法により
製造する場合、得られる多孔質金型本体の気孔率、耐酸
化性、表面粗さの兼合いから、用いる合金粉末の粒径は
１０〜２００μｍであることが望ましい。The porosity of such a porous mold body is preferably about 20 to 40% in view of the balance between air permeability and strength. In addition, when manufacturing such a porous mold body by a powder metallurgy method, the particle size of the alloy powder used is 10% in consideration of the porosity, oxidation resistance, and surface roughness of the resulting porous mold body. It is desirable that the thickness is 200 μm.
【００１６】本発明の銅合金鋳造用金型は、金型鋳造に
よる優れた生産効率を損なうことなく、ガス抜き性が改
善されたものであり、しかも、その耐熱性、耐熱衝撃性
、断熱性も著しく良好であるため、高融点の銅合金の鋳
造にも有効に使用可能である。The copper alloy casting mold of the present invention has improved degassing properties without sacrificing the excellent production efficiency of mold casting, and has excellent heat resistance, thermal shock resistance, and heat insulation properties. Since the properties are also extremely good, it can also be effectively used for casting high melting point copper alloys.
【００１７】[0017]
【作用】本発明の銅合金鋳造用金型では、金型本体の型
面形成された、多孔質溶射被膜を構成する２〜１０重量
％ＭｇＯ及び／又はＣａＯ−ＺｒＯ２ 質セラミックス
は、耐食性、断熱性に優れる上に、銅に対して非常に安
定で反応性が著しく低い。しかも、被膜は多孔質である
ことから、熱衝撃にも非常に強い。[Function] In the copper alloy casting mold of the present invention, the 2 to 10% by weight MgO and/or CaO-ZrO2 ceramics forming the porous sprayed coating formed on the mold surface of the mold body have corrosion resistance and heat insulation properties. In addition to having excellent properties, it is extremely stable and has extremely low reactivity towards copper. Moreover, since the film is porous, it is extremely resistant to thermal shock.
【００１８】このため、金型の利点を損なうことなく、
ガス抜き性、耐食性、耐熱性、耐熱衝撃性、断熱性を改
善し、極めて良好な銅合金鋳造用金型が提供される。Therefore, without sacrificing the advantages of the mold,
An extremely good mold for casting copper alloys is provided which has improved degassing properties, corrosion resistance, heat resistance, thermal shock resistance, and heat insulation properties.
【００１９】因みに、本発明の銅合金鋳造用金型におい
ては、多孔質ＺｒＯ２ 質セラミックス溶射被膜の断熱
性により、１２００℃の溶湯の鋳造を行なった場合でも
、金型本体には８００℃程度の温度しか負荷されず、通
常の場合、１３００℃程度の溶湯であれば、有効に使用
可能である。Incidentally, in the copper alloy casting mold of the present invention, due to the heat insulating properties of the porous ZrO2 ceramic sprayed coating, even when molten metal is cast at 1200°C, the mold body retains a temperature of about 800°C. Only temperature is applied, and in normal cases, molten metal of about 1300°C can be used effectively.
【００２０】[0020]
【実施例】以下に実施例を挙げて本発明をより具体的に
説明するが、本発明はその要旨を超えない限り、以下の
実施例に限定されるものではない。実施例１平均粒径９
０μｍで、下記組成の合金粉末を用い、粉末冶金法によ
り気孔率３０％の多孔体を製造し、このものを水栓金具
用鋳造型に加工して金型本体とした。
この金型本体の型面に、プラズマ溶射にて、２０重
量％Ｃｒ−８０重量％Ｎｉ合金の多孔質層を４０μｍ厚
さに形成し、更に、７重量％ＣａＯ−９３重量％ＺｒＯ
２ の多孔質溶射被膜を１００μｍ厚さに形成した。[Examples] The present invention will be explained in more detail with reference to Examples below, but the present invention is not limited to the following Examples unless it exceeds the gist thereof. Example 1 Average particle size 9
A porous body having a porosity of 30% was produced by a powder metallurgy method using an alloy powder having a diameter of 0 μm and the following composition, and this was processed into a casting mold for a faucet fitting to form a mold body. On the mold surface of this mold body, a porous layer of 20 wt% Cr-80 wt% Ni alloy was formed to a thickness of 40 μm by plasma spraying, and further a porous layer of 7 wt% CaO-93 wt% ZrO was formed.
A porous sprayed coating of No. 2 was formed to a thickness of 100 μm.
【００２１】このようにして得られた金型を用いて、下
記組成の銅合金（融点：９００℃、鋳造温度：１２００
℃）を溶融、鋳造した。
その結果、１０００回試験後も、型の損傷はなく、また
、欠陥のない、表面が美麗で寸法精度の良い鋳造が得ら
れた。Using the mold thus obtained, a copper alloy of the following composition (melting point: 900° C., casting temperature: 1200° C.
°C) was melted and cast. As a result, even after 1000 tests, there was no damage to the mold, and a casting with a beautiful surface and good dimensional accuracy was obtained without any defects.
【００２２】実施例２
７重量％ＣａＯ−９３重量％ＺｒＯ２ の代りに、８重
量％ＭｇＯ−９２重量％ＺｒＯ２ を用いたこと以外は
、実施例１と同様にして金型を製造し、銅合金の鋳造試
験を行なった。その結果、実施例１のものと同様に、金
型の損傷をひき起こすことなく、表面が美麗で寸法精度
が良く、欠陥のない鋳物を得ることができた。Example 2 A mold was manufactured in the same manner as in Example 1 except that 8% by weight MgO-92% by weight ZrO2 was used instead of 7% by weight CaO-93% by weight ZrO2. A casting test was conducted. As a result, as in Example 1, a casting with a beautiful surface, good dimensional accuracy, and no defects could be obtained without causing damage to the mold.
【００２３】[0023]
【発明の効果】以上詳述した通り、本発明の銅合金鋳造
用金型によれば、■ 砂型を用いることなく、金型に
より高い生産効率を実現できる。■ 金型の耐熱衝撃
性、耐食性、断熱性、銅合金に対する安定性が改善され
、寿命が大幅に延長される。■ 金型の脱ガス作用が
改善され、内部欠陥がなく、表面が美麗な鋳物が得られ
る。■ 得られる鋳物の寸法精度が良く、後加工が軽
減される。■ 鋳造工程の自動化が可能で、ダイカス
トにも有効である。等の効果が奏され、高融点銅合金で
あっても、容易かつ効率的に、低コストにて、良好な鋳
物を得ることが可能とされる。[Effects of the Invention] As detailed above, according to the copper alloy casting mold of the present invention, high production efficiency can be achieved by the mold without using a sand mold. ■ The mold's thermal shock resistance, corrosion resistance, heat insulation, and stability against copper alloys are improved, and its lifespan is significantly extended. ■ The degassing effect of the mold is improved, resulting in castings with no internal defects and a beautiful surface. ■ The resulting castings have good dimensional accuracy and post-processing is reduced. ■ It is possible to automate the casting process and is also effective for die casting. With these effects, it is possible to easily and efficiently obtain good quality castings at low cost even with high melting point copper alloys.
Claims (1)
セラミックス溶射被膜を形成してなる銅合金鋳造用金型
において、該ジルコニア質セラミックスの組成が酸化ジ
ルコニウム９０〜９８重量％、酸化マグネシウム及び／
又は酸化カルシウム１０〜２重量％であることを特徴と
する銅合金鋳造用金型。1. A copper alloy casting mold comprising a porous zirconia ceramic sprayed coating formed on the mold surface of a mold body, wherein the zirconia ceramic has a composition of 90 to 98% by weight of zirconium oxide, magnesium oxide, and /
Or a copper alloy casting mold characterized by containing 10 to 2% by weight of calcium oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3079771A JP2536320B2 (en) | 1991-04-12 | 1991-04-12 | Copper alloy casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3079771A JP2536320B2 (en) | 1991-04-12 | 1991-04-12 | Copper alloy casting mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04314851A true JPH04314851A (en) | 1992-11-06 |
| JP2536320B2 JP2536320B2 (en) | 1996-09-18 |
Family
ID=13699471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3079771A Expired - Fee Related JP2536320B2 (en) | 1991-04-12 | 1991-04-12 | Copper alloy casting mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2536320B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05132752A (en) * | 1991-06-13 | 1993-05-28 | T-P Kogyo Kk | Method for thermally spraying ceramic on casting mold |
| CN102862439A (en) * | 2012-08-31 | 2013-01-09 | 金星铜集团有限公司 | Method for making cast copper effect imitation artwork by applying shot blasting method |
| CN112225580A (en) * | 2020-09-14 | 2021-01-15 | 苏州沪之光智能制造科技有限公司 | Photocuring 3D printing zirconia foamed ceramic filter and preparation method thereof |
-
1991
- 1991-04-12 JP JP3079771A patent/JP2536320B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05132752A (en) * | 1991-06-13 | 1993-05-28 | T-P Kogyo Kk | Method for thermally spraying ceramic on casting mold |
| CN102862439A (en) * | 2012-08-31 | 2013-01-09 | 金星铜集团有限公司 | Method for making cast copper effect imitation artwork by applying shot blasting method |
| CN112225580A (en) * | 2020-09-14 | 2021-01-15 | 苏州沪之光智能制造科技有限公司 | Photocuring 3D printing zirconia foamed ceramic filter and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2536320B2 (en) | 1996-09-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6238807B1 (en) | Thermal spraying composite material containing molybdenum boride and a coat formed by thermal spraying | |
| JPH06583A (en) | Core for casting of titanium and its alloy | |
| RU2414526C2 (en) | Procedure for cylinder sleeve coating | |
| KR100511799B1 (en) | Process for producing a coating on a refractory structural member | |
| US5143541A (en) | Process for producing powdered metal spray coating material | |
| JPH04314851A (en) | Die for casting copper alloy | |
| JPH03223455A (en) | Ceramic thermal spraying material | |
| US3588028A (en) | Coated metal mold | |
| JPH0517305B2 (en) | ||
| US5194339A (en) | Discontinuous casting mold | |
| JPH0337454B2 (en) | ||
| KR20000039445A (en) | Ceramic complex powdered material for amorphous thermal spraying coating | |
| JPS6213236A (en) | Metallic mold for casting and its production | |
| JPH03170656A (en) | Metal mold made of aluminum alloy | |
| JPH0517304B2 (en) | ||
| JP2000064060A (en) | Member for nonferrous molten metal | |
| JPS6264449A (en) | Coating method for metallic mold for casting low melting metal | |
| JPH02267253A (en) | Permanent metal mold for casting | |
| JP2002241920A (en) | Thermal spray coating and composite thermal spraying material | |
| JPS61222658A (en) | Molding material for precision casting and casting method using said material | |
| JPH09227243A (en) | Molybdenum boride-containing composite thermal spraying material and thermally sprayed coating film | |
| JP2573350B2 (en) | Permanent mold for cast products made of aluminum alloy or magnesium alloy | |
| JPS6254543A (en) | Production of casting mold | |
| US20070181285A1 (en) | Die for producing a casting and method for making the die | |
| JPH01118355A (en) | Coated die and core for aluminum die casting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080708 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090708 Year of fee payment: 13 |
|
| LAPS | Cancellation because of no payment of annual fees |