JP3956322B2 - One-way clutch end bearings and other sliding parts - Google Patents

One-way clutch end bearings and other sliding parts Download PDF

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Publication number
JP3956322B2
JP3956322B2 JP16118496A JP16118496A JP3956322B2 JP 3956322 B2 JP3956322 B2 JP 3956322B2 JP 16118496 A JP16118496 A JP 16118496A JP 16118496 A JP16118496 A JP 16118496A JP 3956322 B2 JP3956322 B2 JP 3956322B2
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Japan
Prior art keywords
cold
test
wear
strength brass
sliding parts
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JP16118496A
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Japanese (ja)
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JPH09316570A (en
Inventor
邦夫 中島
良一 石金
亘 矢後
一之 稲垣
滋行 油谷
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CHUETSU METAL CO., LTD.
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CHUETSU METAL CO., LTD.
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00Freewheels or freewheel clutches
    • F16D41/06Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00Freewheels or freewheel clutches
    • F16D41/06Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D2041/0601Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with a sliding bearing or spacer
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00Materials; Production methods therefor
    • F16D2200/0004Materials; Production methods therefor metallic
    • F16D2200/0026Non-ferro

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding-Contact Bearings (AREA)

Description

【0001】
【産業上の利用分野】
本発明は、船舶,自動車,航空機,機械装置等のトルク伝達機械に使用されているワンウェイクラッチ用エンドベアリング及びその他の摺動条件の厳しい用途の摺動部品に関する。
【0002】
【従来の技術】
これまで、摺動条件の厳しい用途の摺動部には、耐摩耗性の良いβ相の量が30%を越える金属組織の耐摩耗性高力黄銅合金が素材として用いられ(例えば、表1中に比較例合金として示した(1),(2),(4),(5)などである)、その鋳造材や熱間鍛造材を切削加工で仕上げ形状に成形した摺動部品が用いられている。
【0003】
また、摺動部品の一種である現行のワンウェイクラッチ用エンドベアリングには、以下の二種類のものが使われている。
(イ)燐青銅の板、条を冷間プレスで成形したもの。
(ロ)β相の量が30%を越える金属組織を有する耐摩耗性高力黄銅の鋳造材を切削加工で仕上げ形状に成形したもの。
【0004】
【発明が解決しようとする課題】
上記した従来例の摺動部品は、耐摩耗性は良いのだが、材料の冷間塑性加工性が悪いので、仕上げ成形に切削加工法を採用しなければならなかった。このため自動車部品の様に大量に作るものでは、冷間プレスで成形するものよりは材料歩留りや生産性が悪く、また、複雑な形状の摺動部品を加工する場合には、切削加工に用いる機械装置も非常に高価になり、コスト的に冷間プレスで成形するものより不利であった。
【0005】
また、上記した現行のエンドベアリングにあっては、
(イ)燐青銅の板や条を冷間プレスで成形したものは、切削工程を含まず、歩留りや生産性も良く、大量生産に向いているのだが、素材の燐青銅の板や条は価格が高く、一方、β相の量が30%を越える金属組織を持った耐摩耗性高力黄銅材よりは、耐摩耗性が劣る欠点があった。
(ロ)また、β相の量が30%を越える金属組織を持った耐摩耗性高力黄銅の鋳造材を切削加工で仕上げ形状に成形したものは、耐摩耗性は良好なのだが、エンドベアリングの様に薄肉形状のものでは、歩留りも悪く、専用の加工装置を必要とし、且つ生産性を上げることが出来ないので、冷間プレスで成形したものよりはコスト的に不利であるという欠点があった。
【0006】
本発明は、上記した従来例の実情に鑑み、従来のβ相の量が30%を越える耐摩耗性高力黄銅で作られた摺動部品と同等の耐摩耗性を有し、しかも、それを製造するのに、生産性の良い冷間塑性加工法を採用出来るので、これまでよりも安価で高性能なワンウェイクラッチ用エンドベアリング及びその他の摺動部品を提供することを目的としている。
【0007】
【課題を解決するための手段】
上記の目的を達成するために、本発明の摺動部品は、下記〔0009〕に示す化学成分を有し、金属組織中のβ相の量を30%以下に制御し、冷間塑性加工性を持たせたケイソ化マンガン系高力黄銅の板,条,管,棒の素材を冷間塑性加工して作ったことをその要旨としている。
【0008】
また、本発明のワンウェイクラッチ用エンドベアリングは、下記〔0009〕に示す化学成分を有し、金属組織中のβ相の量を30%以下に制御し、冷間塑性加工性を持たせたケイソ化マンガン系高力黄銅の板,条,管の素材を冷間打ち抜き,曲げ,絞りのプレス加工や,その他の冷間塑性加工で作ったことをその要旨としている。
【0009】
質量%で、Cu=Bal,Zn=15〜37%,Mn=0.3〜5.0%,Si=0.3〜3.0%,および不可避元素
【0010】
【作用】
摺動条件の厳しい用途の摺動部品に、冷間塑性加工性の良い、β相が30%以下の耐摩耗性高力黄銅材を用いることで、生産性の良い、冷間打ち抜き,冷間鍛造,冷間曲げ加工等の冷間プレス成型や冷間引き抜き,冷間スウェージング等の冷間展伸加工法の採用が可能になり、現行のβ相が30%を越える耐摩耗性高力黄銅の鋳造素材や熱間鍛造素材を機械加工して作る摺動部品より複雑なものでも、大量に、しかも安価に製造できる。
【0011】
β相が30%以下の耐摩耗性高力黄銅材を冷間展伸加工することで、耐摩耗性を増し、β相が30%を越える材料で作られた現行のものと同等の耐摩耗性を付加することができる。
【0012】
エンドベアリングの素材に、〔0009〕の様なβ相が30%以下のケイソ化マンガン系高力黄銅の板や条を用いることで、燐青銅より材料費が安価になり、しかも、冷間展伸性を有するので、燐青銅の板や条から作られるエンドベアリングと同様に、大量生産に適した冷間プレス成形の採用が可能になり、耐摩耗性高力黄銅の鋳造材を切削加工しているものより成形コストを下げられるので、現行の二種類のエンドベアリングのどちらよりも安価になる。
【0013】
β相が30%以下のケイソ化マンガン系高力黄銅材料に、冷間塑性加工を行うことで材料の耐摩耗性を増し、現行の燐青銅のエンドベアリングより耐摩耗性が良く、β相が30%を越える耐摩耗性高力黄銅材から作られたものと同等の耐摩耗性を付加することができる。
【0014】
次に、本発明に係るケイソ化マンガン系高力黄銅材の構成成分について、その作用と範囲限定の理由を説明する。
【0015】
(A)Zn
マトリックスに固溶し、材料の強度とβ相の量を増す基本的元素であり、37%を越えるとβ相の量が30%を越え、15%未満では強度が不足する。
【0016】
(B)Mn,Si
この合金の耐摩耗性に影響するMnSi金属間化合物を構成する元素であり、両者共に下限値未満では、MnSi金属間化合物の晶出が少なく、耐摩耗性が不足し、上限値を越えると、金属間化合物の晶出量が多過ぎて、材料の靱性が低下する。
【0017】
【実施例】
(1)供試材の製作
(a)本発明に係る実施例合金による供試材
表1に示す本発明に係る実施例合金を高周波誘導炉にて溶製し、φ120×120mmの円筒形状に金型鋳造し、機械加工にてφ100×100mmの寸法に荒加工した。次いで、700℃の温度で15×100×520mmの寸法に熱間鍛造した。これを機械加工にて10×100×120mmの寸法にして、圧延用の素材とした。圧延用素材は700〜750℃にて2×100×600mmの寸法に熱間圧延した。熱間圧延したものは、長さ切断して2×100×160mmの寸法にしてから、途中1回の中間焼鈍を650℃で行い、0.9×100×355mmの寸法に冷間圧延しこれを更に650℃で焼鈍し、酸洗した後、0.8×100×400mmの寸法に冷間圧延し、供試材とした。
【表1】
【0018】
(b)比較例合金により供試材
比較例合金の化学成分を同じく表1に示す。比較例合金のうち燐青銅のものについては、市販の0.8×100×1000mmの寸法の板材を購入して供試材とした。耐摩耗性高力黄銅材については、表1に示す化学成分を有するφ80×120mmの寸法の連続鋳造材と、これを更にφ55×250mmの寸法に780℃で熱間鍛造した材料を供試材とした。
【0019】
(2)摩耗試験
本発明に係る実施例合金と、比較例合金の内の燐青銅については、その各供試材を図1及び図2に示す試験片の形状に加工した。燐青銅以外の比較例合金は図3及び図4に示す試験片の形状に加工した。摩耗試験の相手材には、図5及び図6に示す形状の試験片を用いた。摩耗試験はスラスト摩耗試験によった。その試験条件は、以下に示す通りである。
【0020】
(a)スラスト摩耗試験の条件
回転数 :6,000rpm
試験荷重 :1,000N
試験時間 :60分
試験回数 :n=1
試験温度 :室温
潤滑油 :ATF
相手材材質:SCM 415(HCQT)(HRC=60)
表面粗さ :供試材:0.3S,相手材:1.3S
【0021】
(b)スラスト摩耗試験の評価方法
試験後の供試材の摺動痕の深さを180°間隔で、2箇所について表面粗さ計で測定し、その平均値を耐摩耗性の評価に用いた。値が小さいほど耐摩耗性が良い。
【0022】
(c)スラスト摩耗試験結果
表1に、本発明に係る実施例合金及び比較例合金による各供試材の試験後の各摺動痕の深さ測定値を示した。
【0023】
(3)成形テスト
本発明に係る実施例合金についてはその冷間塑性加工性を確認するため、摩耗試験に供した0.8×100×400mmの圧延板を図7及び図8に示すエンドベアリングの形状に30トンのクランクプレスを用いて成形テストを行なった。全ての供試材は完全に図面通りに成形され、割れや傷も無く、充分な冷間塑性加工性を有していることを確認出来た。
【0024】
(4)エンドベアリングのコスト比較
本発明実施例を1として、従来技術品との価格比を表2に示した。
【表2】
【0025】
【発明の効果】
以上の結果から、本発明の摺動部品は、摺動条件の厳しい用途に用いられている従来のβ相が30%を越える耐摩耗性高力黄銅で作られた摺動部品と同等の耐摩耗性を有し、しかも、それを製造するのに、生産性の良い冷間塑性加工法を採用出来るので、安価で、高性能な摺動部品を提供することが出来る。
【0026】
本発明のエンドベアリングの耐摩耗性は、従来の燐青銅のものより良好で、β相が30%を越える耐摩耗性高力黄銅の鋳造素材を機械加工して作ったものと同等である。
【0027】
本発明のエンドベアリングは、冷間プレスで製品形状に成形できるので、従来の燐青銅のものと製品形状に成形する費用は同等だが、材料費が安いのでトータルでの費用は安くなる。β相が30%を越える耐摩耗性高力黄銅の鋳造素材を機械加工して作ったものと比較すると、材料単価は同等だが、切削工程を含まず、製品形状を薄くできるので、材料費は安くなり、しかも、製品形状に成形する費用も安いので、トータルの価格は当然本発明品の方が安いという利点を有する。
【図面の簡単な説明】
【図1】 本発明に係る実施例合金及び、燐青銅より成形した摩耗試験片を説明した正面図。
【図2】 本発明に係る実施例合金及び、燐青銅より成形した摩耗試験片を説明した側面図。
【図3】 燐青銅以外の比較例合金より成形した摩耗試験片を説明した正面図。
【図4】 燐青銅以外の比較例合金より成形した摩耗試験片を説明した側面図。
【図5】 摩耗試験に使用される相手材の正面図。
【図6】 摩耗試験に使用される相手材の側面図。
【図7】 本発明に係る実施例合金より成形されたエンドベアリングを説明した正面図。
【図8】 本発明に係る実施例合金より成形されたエンドベアリングを説明した側面断面図。
[0001]
[Industrial application fields]
The present invention relates to end bearings for one-way clutches used in torque transmission machines such as ships, automobiles, aircrafts, and mechanical devices, and other sliding parts for applications with severe sliding conditions.
[0002]
[Prior art]
Up to now, a high-strength brass alloy having a metal structure in which the amount of β phase having good wear resistance exceeds 30% has been used as a material for a sliding part for applications with severe sliding conditions (for example, Table 1). (1), (2), (4), (5), etc., shown as comparative example alloys in the inside), using sliding parts formed by casting the cast material or hot forging material into a finished shape It has been.
[0003]
In addition, the following two types of end bearings for current one-way clutches, which are a kind of sliding parts, are used.
(A) A phosphor bronze plate or strip formed by cold pressing.
(B) A cast material of wear-resistant high-strength brass having a metal structure in which the amount of β phase exceeds 30% is formed into a finished shape by cutting.
[0004]
[Problems to be solved by the invention]
Although the sliding parts of the conventional examples described above have good wear resistance, the cold plastic workability of the material is poor, and therefore a cutting method must be employed for finish molding. For this reason, materials produced in large quantities, such as automobile parts, have poorer material yield and productivity than those formed by cold pressing, and are used for cutting when processing sliding parts with complex shapes. The mechanical device is also very expensive, which is disadvantageous from the cost of forming by cold pressing.
[0005]
In the above-mentioned current end bearing,
(B) Phosphor bronze plates and strips formed by cold pressing do not include cutting processes, have good yield and productivity, and are suitable for mass production. On the other hand, there was a drawback that the wear resistance was inferior to that of the wear-resistant high-strength brass material having a metal structure in which the amount of β phase exceeded 30%.
(B) Abrasion-resistant high-strength brass cast material with a metal structure exceeding 30% in the amount of β phase is formed into a finished shape by cutting. In the case of the thin-walled shape like this, the yield is poor, a dedicated processing device is required, and the productivity cannot be increased, so there is a disadvantage that it is disadvantageous in terms of cost than that formed by cold pressing. there were.
[0006]
In view of the actual situation of the conventional example described above, the present invention has wear resistance equivalent to that of a sliding part made of high-strength brass with wear resistance exceeding 30% in the conventional β phase, and Since the cold plastic working method with good productivity can be adopted to manufacture the one-way clutch, it is an object to provide an end bearing for a one-way clutch and other sliding parts which are cheaper and higher performance than before.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the sliding component of the present invention has the chemical components shown in the following [0009] , controls the amount of β phase in the metal structure to 30% or less, and performs cold plastic workability. The essence is that the material of the chromized manganese-based high-strength brass plates, strips, tubes, and rods made by cold plastic working.
[0008]
The end bearing for a one-way clutch according to the present invention has a chemical component shown in [0009] below, and controls the amount of β phase in the metal structure to 30% or less to provide cold plastic workability. The main point is that the materials of manganese-based high-strength brass plates, strips, and tubes are made by cold stamping, bending, drawing pressing, and other cold plastic working.
[0009]
In mass%, Cu = Bal, Zn = 15-37%, Mn = 0.3-5.0%, Si = 0.3-3.0%, and inevitable elements
[Action]
By using a high-strength brass material with good cold plastic workability and β-phase of 30% or less for sliding parts for applications with severe sliding conditions, it is possible to achieve good productivity, cold punching, cold It is possible to adopt cold press forming methods such as cold press forming such as forging and cold bending, cold drawing, cold swaging, etc., and the current β phase exceeds 30% wear resistance and high strength Even more complex parts than sliding parts made by machining brass casting materials or hot forging materials can be manufactured in large quantities and at low cost.
[0011]
Abrasion resistance of high-strength brass materials with a β-phase of 30% or less Cold-stretched to increase wear resistance, equivalent to current wear made of materials with a β-phase of more than 30% Sex can be added.
[0012]
By using diatomized manganese high-strength brass plates and strips with a β phase of 30% or less, such as [0009] , the material cost is lower than phosphor bronze, and cold-expanded. Since it has extensibility, it is possible to adopt cold press forming suitable for mass production, as well as end bearings made from phosphor bronze plates and strips, and cut cast materials of wear-resistant high-strength brass. The molding cost is lower than the existing one, so it is cheaper than either of the current two types of end bearings.
[0013]
The wear resistance of the material is increased by performing cold plastic processing on a diatomized manganese-based high-strength brass material with a β phase of 30% or less, and the wear resistance is better than the end bearing of the current phosphor bronze. Abrasion resistance exceeding 30% Abrasion resistance equivalent to that made from a high strength brass material can be added.
[0014]
Next, the effect | action and the reason of range limitation are demonstrated about the structural component of the diatomized manganese type high strength brass material which concerns on this invention.
[0015]
(A) Zn
It is a basic element that dissolves in the matrix and increases the strength of the material and the amount of β phase. If it exceeds 37%, the amount of β phase exceeds 30%, and if it is less than 15%, the strength is insufficient.
[0016]
(B) Mn, Si
It is an element constituting the Mn 5 Si 3 intermetallic compound that affects the wear resistance of this alloy. If both are less than the lower limit, the Mn 5 Si 3 intermetallic compound is less crystallized and the wear resistance is insufficient. When the upper limit is exceeded, the amount of crystallization of the intermetallic compound is too large, and the toughness of the material decreases.
[0017]
【Example】
(1) Manufacture of test materials (a) Specimen materials by example alloys according to the present invention The example alloys according to the present invention shown in Table 1 were melted in a high-frequency induction furnace to form a cylindrical shape of φ120 × 120 mm The mold was cast and roughed to a size of φ100 × 100 mm by machining. It was then hot forged to a size of 15 × 100 × 520 mm at a temperature of 700 ° C. This was machined to a size of 10 × 100 × 120 mm to obtain a material for rolling. The rolling material was hot-rolled at 700 to 750 ° C. to a size of 2 × 100 × 600 mm. After hot rolling, the length is cut to a size of 2 × 100 × 160 mm, and then intermediate annealing is performed once at 650 ° C. and cold rolled to a size of 0.9 × 100 × 355 mm. The sample was further annealed at 650 ° C., pickled, and then cold-rolled to a size of 0.8 × 100 × 400 mm to obtain a test material.
[Table 1]
[0018]
(B) Specimen by Comparative Example Alloy Table 1 also shows the chemical components of the comparative example alloy. Regarding the phosphor bronze alloy among the comparative example alloys, a commercially available plate material having a size of 0.8 × 100 × 1000 mm was purchased and used as a test material. For the wear-resistant high-strength brass material, a continuous cast material having a chemical composition shown in Table 1 and having a diameter of φ80 × 120 mm and a material obtained by further hot-forging the material to φ55 × 250 mm at 780 ° C. are used as test materials. It was.
[0019]
(2) Abrasion test Regarding the example alloys according to the present invention and phosphor bronze in the comparative example alloys, the respective test materials were processed into the shapes of the test pieces shown in FIGS. The comparative alloy other than phosphor bronze was processed into the shape of the test piece shown in FIGS. A test piece having the shape shown in FIGS. 5 and 6 was used as a counterpart material for the wear test. The wear test was based on a thrust wear test. The test conditions are as shown below.
[0020]
(A) Thrust wear test conditions Rotational speed: 6,000 rpm
Test load: 1,000N
Test time: 60 minutes Number of tests: n = 1
Test temperature: Room temperature Lubricating oil: ATF
Mating material: SCM 415 (HCQT) (HRC = 60)
Surface roughness: Test material: 0.3S, mating material: 1.3S
[0021]
(B) Evaluation method of thrust wear test The depth of the sliding trace of the test material after the test was measured at two intervals with a surface roughness meter at 180 ° intervals, and the average value was used for the evaluation of wear resistance. It was. The smaller the value, the better the wear resistance.
[0022]
(C) Thrust wear test results Table 1 shows the measured depths of the respective sliding marks after the test of each sample material by the example alloy and the comparative example alloy according to the present invention.
[0023]
(3) Forming test In order to confirm the cold plastic workability of the example alloys according to the present invention, a 0.8 × 100 × 400 mm rolled plate subjected to a wear test is shown in FIG. 7 and FIG. A molding test was performed using a 30-ton crank press in the shape of. It was confirmed that all the test materials were completely formed as shown in the drawing, had no cracks or scratches, and had sufficient cold plastic workability.
[0024]
(4) Cost comparison of end bearing Table 2 shows the price ratio of the end bearing according to Example 1 of the present invention.
[Table 2]
[0025]
【The invention's effect】
From the above results, the sliding component of the present invention is equivalent to the sliding component made of wear-resistant high-strength brass whose β phase exceeds 30% and is used for applications with severe sliding conditions. Since a cold plastic working method having wearability and high productivity can be adopted to produce the wearable part, an inexpensive and high-performance sliding part can be provided.
[0026]
The wear resistance of the end bearing of the present invention is better than that of conventional phosphor bronze, and is equivalent to that produced by machining a cast material of wear resistant high strength brass having a β phase exceeding 30%.
[0027]
Since the end bearing of the present invention can be formed into a product shape by a cold press, the cost of forming into a product shape is the same as that of a conventional phosphor bronze, but the total cost is low because the material cost is low. Compared to the machined material of cast material of wear-resistant high-strength brass whose β phase exceeds 30%, the material unit price is the same, but it does not include the cutting process, and the product shape can be reduced, so the material cost is Since the cost is reduced and the cost of molding into a product shape is also low, the total price has the advantage that the product of the present invention is naturally cheaper.
[Brief description of the drawings]
FIG. 1 is a front view illustrating an abrasion test piece formed from an example alloy and phosphor bronze according to the present invention.
FIG. 2 is a side view illustrating an abrasion test piece formed from an example alloy and phosphor bronze according to the present invention.
FIG. 3 is a front view illustrating a wear test piece formed from a comparative alloy other than phosphor bronze.
FIG. 4 is a side view illustrating a wear test piece formed from a comparative alloy other than phosphor bronze.
FIG. 5 is a front view of a mating material used in an abrasion test.
FIG. 6 is a side view of a mating material used in an abrasion test.
FIG. 7 is a front view illustrating an end bearing formed from an example alloy according to the present invention.
FIG. 8 is a side cross-sectional view illustrating an end bearing formed from an example alloy according to the present invention.

Claims (2)

質量%で、Zn:15〜37%、Mn:0.3〜5.0%、Si:0.3〜3.0%、残部Cuおよび不可避の不純物よりなる合金成分を有し、金属組織中のβ相の量を30%以下に制御し、冷間塑性加工性を持たせたケイソ化マンガン系高力黄銅合金の板,条,管,棒の素材を冷間塑性加工することにより製造したことを特徴とする摺動部品。  In mass%, it has an alloy component consisting of Zn: 15-37%, Mn: 0.3-5.0%, Si: 0.3-3.0%, the balance Cu and inevitable impurities, Manufactured by cold plastic working materials of strips, strips, pipes and rods of diatomized manganese-based high-strength brass alloy with controlled β-phase amount of 30% or less and cold plastic workability Sliding parts characterized by that. 質量%で、Zn:15〜37%、Mn:0.3〜5.0%、Si:0.3〜3.0%、残部Cuおよび不可避の不純物よりなる合金成分を有し、金属組織中のβ相の量を30%以下に制御し、冷間塑性加工性を持たせたケイソ化マンガン系高力黄銅合金の板,条,管の素材を冷間打ち抜き,曲げ,絞りのプレス加工、またはその他の冷間塑性加工により製造したことを特徴とするワンウェイクラッチ用エンドベアリング。In mass%, it has an alloy component consisting of Zn: 15-37%, Mn: 0.3-5.0%, Si: 0.3-3.0%, the balance Cu and inevitable impurities, The material of the diatomized manganese-based high-strength brass alloy with controlled β-phase amount of 30% or less and cold plastic workability is cold-punched, bent, and pressed for drawing, An end bearing for a one-way clutch characterized by being manufactured by other cold plastic working.
JP16118496A 1996-05-30 1996-05-30 One-way clutch end bearings and other sliding parts Expired - Fee Related JP3956322B2 (en)

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