JPS629175B2 - - Google Patents
Info
- Publication number
- JPS629175B2 JPS629175B2 JP58113352A JP11335283A JPS629175B2 JP S629175 B2 JPS629175 B2 JP S629175B2 JP 58113352 A JP58113352 A JP 58113352A JP 11335283 A JP11335283 A JP 11335283A JP S629175 B2 JPS629175 B2 JP S629175B2
- Authority
- JP
- Japan
- Prior art keywords
- copper
- sliding member
- whiskers
- powder
- wear resistance
- 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.)
- Expired
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical class [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 11
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910000906 Bronze Inorganic materials 0.000 description 3
- 229910018540 Si C Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000010974 bronze Substances 0.000 description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Description
発明の目的
〔産業上の利用分野〕
本発明は、銅または銅合金からなり、電流の流
れる部分に使用する摺動部材の改良に関する。
〔従来の技術〕
パンタグラフ、モーターの整流子、発電機の集
電リング、あるいは巻線摺動抵抗器の接点など、
電流の流れる部分に使用する摺動部材は、電気的
性質の観点から、多くの場合、銅またはその合金
が使用されている。
摺動部材においては、当然にその摩耗特性が問
題であるが、銅も銅合金も、一般に耐摩耗性がよ
い材料ではなく、その改善が望まれている。
〔発明が解決しようとする問題点〕
本発明の目的は、この要望にこたえて、耐摩耗
性の改善された摺動部材を提供することにある。
発明の構成
〔問題点を解決するための手段〕
本発明の摺動部材は、電流の流れる部分に使用
する摺動部材であつて、銅または銅合金に1.17重
量％未満の炭化ケイ素Si Ｃウイスカを均一に分
散させることにより、耐摩耗性を改善した材料か
らなる。
ここで銅合金とは、銅を主体とし、これに所定
量の合金元素を添加してなる通電材料用の合金、
たとえばＰおよびZnを添加したリン青銅のよう
な材料をいう。
Si Ｃウイスカは、直径１μ内外、長さ50〜200
μ程度のものが量産され入手容易になつたので、
それを用いればよい。
銅または銅合金へのSi Ｃウイスカの均一な分
散は、粉末冶金の技術によるのが好都合である。
すなわち、金属粉末とウイスカ（外観上は微粉末
に近い）とを混合し、成形して、非酸化性雰囲気
中で焼結する。成形および焼結は、粉末冶金の分
野において知られている技術に従えばよい。
このように、粉末焼結体である摺動部材は、本
発明の代表的な態様といえる。
一方、所望であれば、溶製法により本発明の摺
動部材をつくることができるのはもちろんであ
る。その場合は、溶融金属中にSi Ｃウイスカを
混合し、よく撹拌して均一に分散させたならば、
比重差によるウイスカの浮上分離がはじまらない
うち速かに凝固させるべきである。
〔作 用〕
銅または銅合金へのSi Ｃウイスカの配合は、
１％以下の少量でも耐摩耗性改善の効果が認めら
れる。多量になるほど効果が増すが、Si Ｃは比
抵抗が大きいから、その配合量の増大は当然に摺
動部材の比抵抗の増大をもたらし、通電材料とし
ては不利になる。もちろん、コストも上昇する。
従つて、その部材に要求される耐摩耗性改善の程
度と、維持すべき電気的性質とのバランスにおい
て、コストをも配慮して配合量を決定すべきこと
になる。
〔実施例〕
銅の粉末およびリン青銅の粉末に、Si Ｃウイ
スカ１％を混合し、スラスト型にプレス成形して
から、H2ガス雰囲気中で、820℃×１時間の焼結
を行なつた。比較のため、Si Ｃウイスカを含ま
ない銅粉末およびリン青銅粉末の焼結品も、同じ
条件でつくつた。
これらの摺動部材試作品を、ピン―円板式摩耗
試験機にかけて、銅だけの焼結品と銅にSi Ｃウ
イスカを分散させた焼結品とを、またリン青銅だ
けの焼結品とリン青銅にSi Ｃウイスカを分散さ
せた焼結品とをそれぞれ摺動させて摩耗量を測定
し、Si Ｃウイスカ配合による耐摩耗性の改善の
度合をしらべた。
その結果を次に示す。
OBJECT OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in a sliding member made of copper or a copper alloy and used in a portion through which electric current flows. [Prior art] Pantographs, motor commutators, generator collector rings, or contacts of wire-wound sliding resistors, etc.
From the viewpoint of electrical properties, copper or an alloy thereof is often used for the sliding members used in the parts through which current flows. Naturally, the wear characteristics of sliding members are a problem, but neither copper nor copper alloys are generally materials with good wear resistance, and improvements in this property are desired. [Problems to be Solved by the Invention] An object of the present invention is to meet this demand and provide a sliding member with improved wear resistance. Structure of the Invention [Means for Solving the Problems] The sliding member of the present invention is a sliding member used in a part where electric current flows, and is a sliding member that contains less than 1.17% by weight of silicon carbide SiC whiskers in copper or a copper alloy. Made of a material that has improved wear resistance by uniformly dispersing it. Copper alloy here refers to an alloy for electrically conductive materials, which is made mainly of copper and has a predetermined amount of alloying elements added thereto.
For example, it refers to a material such as phosphor bronze doped with P and Zn. Si C whisker has a diameter of 1 μm and a length of 50 to 200 mm.
As things of μ size were mass-produced and became easy to obtain,
Just use that. Uniform dispersion of Si 2 C whiskers in copper or copper alloys is conveniently achieved by powder metallurgy techniques.
That is, metal powder and whiskers (which are similar in appearance to fine powder) are mixed, shaped, and sintered in a non-oxidizing atmosphere. Shaping and sintering may follow techniques known in the field of powder metallurgy. Thus, the sliding member which is a powder sintered body can be said to be a typical embodiment of the present invention. On the other hand, it goes without saying that the sliding member of the present invention can be manufactured by a melting process if desired. In that case, if Si C whiskers are mixed into the molten metal and stirred well to disperse them uniformly,
It should be solidified quickly before whiskers begin to float and separate due to the difference in specific gravity. [Function] When Si C whiskers are added to copper or copper alloy,
Even in a small amount of 1% or less, the effect of improving wear resistance is recognized. The effect increases as the amount increases, but since SiC has a high resistivity, an increase in the amount added naturally increases the resistivity of the sliding member, making it disadvantageous as a current-carrying material. Of course, costs will also rise.
Therefore, the amount to be added should be determined by considering the balance between the degree of abrasion resistance improvement required for the member and the electrical properties to be maintained, while also taking into consideration cost. [Example] Copper powder and phosphor bronze powder were mixed with 1% SiC whisker, press-molded into a thrust mold, and then sintered at 820°C for 1 hour in an H2 gas atmosphere. Ta. For comparison, sintered products of copper powder and phosphor bronze powder that do not contain SiC whiskers were also produced under the same conditions. These sliding member prototypes were subjected to a pin-disk type wear tester, and sintered products made of only copper, sintered products with SiC whiskers dispersed in copper, and sintered products made of only phosphor bronze and sintered products with SiC whiskers dispersed in copper were tested. The amount of wear was measured by sliding a sintered product containing bronze with SiC whiskers dispersed therein, and the degree of improvement in wear resistance due to the addition of SiC whiskers was examined. The results are shown below.
【表】
発明の効果
本発明の摺動部材は、銅またはその合金を主成
分とし、これに少量のSi Ｃウイスカを添加して
なるものであるから、電気的性質は高く維持した
まま、改善された耐摩耗性を示す。[Table] Effects of the Invention Since the sliding member of the present invention is made of copper or its alloy as a main component and a small amount of SiC whiskers is added to it, the electrical properties can be improved while maintaining high electrical properties. It shows the wear resistance.
Claims (1)
素ウイスカを均一に分散させてなる、電流の流れ
る部分に使用する耐摩耗性の改善された摺動部
材。 ２ 粉末焼結体である特許請求の範囲第１項の摺
動部材。[Claims] 1. A sliding member with improved wear resistance for use in a current-carrying part, which is made by uniformly dispersing less than 1.17% by weight of silicon carbide whiskers in copper or a copper alloy. 2. The sliding member according to claim 1, which is a powder sintered body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11335283A JPS605850A (en) | 1983-06-22 | 1983-06-22 | Sliding member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11335283A JPS605850A (en) | 1983-06-22 | 1983-06-22 | Sliding member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS605850A JPS605850A (en) | 1985-01-12 |
| JPS629175B2 true JPS629175B2 (en) | 1987-02-26 |
Family
ID=14610086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11335283A Granted JPS605850A (en) | 1983-06-22 | 1983-06-22 | Sliding member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS605850A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6460496A (en) * | 1987-08-31 | 1989-03-07 | Mitsubishi Heavy Ind Ltd | Marine propeller |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58147531A (en) * | 1982-02-25 | 1983-09-02 | Hitachi Metals Ltd | Composite jig and tool material and its manufacture |
| JPS5993845A (en) * | 1982-11-17 | 1984-05-30 | Hitachi Ltd | Composite material |
-
1983
- 1983-06-22 JP JP11335283A patent/JPS605850A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58147531A (en) * | 1982-02-25 | 1983-09-02 | Hitachi Metals Ltd | Composite jig and tool material and its manufacture |
| JPS5993845A (en) * | 1982-11-17 | 1984-05-30 | Hitachi Ltd | Composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS605850A (en) | 1985-01-12 |
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