JPH0252714B2 - - Google Patents
Info
- Publication number
- JPH0252714B2 JPH0252714B2 JP58052065A JP5206583A JPH0252714B2 JP H0252714 B2 JPH0252714 B2 JP H0252714B2 JP 58052065 A JP58052065 A JP 58052065A JP 5206583 A JP5206583 A JP 5206583A JP H0252714 B2 JPH0252714 B2 JP H0252714B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- sliding contact
- sliding
- generated
- oxides
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/021—Composite material
- H01H1/023—Composite material having a noble metal as the basic material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Contacts (AREA)
- Conductive Materials (AREA)
Description
本発明は、摺動接点材料の改良に関する。
摺動接点材料としては、従来Au70重量％、Pt5
重量％、Ag10重量％、Cu14重量％、Nil重量％
より成るものが広く用いられてきたが、（昭和40
年７月８日に工業日日新聞社から発行された日本
電子材料技術協会編の「新しい接点材料」第30頁
参照。）この摺動接点材料にて作つた摺動接点を
備えたコミテーターは、相手方の摺動接点である
ブラシにもよるが、その加工履歴、硬さのバラン
ス、使用条件などによつて、摺動時機械的、電気
的腐食により発生する酸化物の為、耐摩耗性が劣
下し、摩耗粉が発生し易く、摩耗粉が生じた場合
にはノイズが発生していた。
本発明は、斯かる従来の摺動接点材料の問題を
解消すべくなされたものであり、摺動時に機械
的、電気的腐食により発生する酸化物を潤滑剤と
なして、耐摩耗性を向上し且つ接触抵抗を低く安
定させることのできる摺動接点材料を提供せんと
するものである。
本発明の摺動接点材料の１つは、Au65〜75重
量％、Pd3〜８重量％、Ag5〜15重量％、Cu10〜
18重量％、Zn0.1〜２重量％より成るものである。
本発明の摺動接点材料の他の１つは、組成比で
Au65〜75重量％、Pd3〜８重量％、Ag5〜15重量
％、Cu10〜18重量％、Zn0.1〜２重量％のAu―
Pd―Ag―Cu―Znが95.0〜99.5重量％及び残部が
Nb、Ba及びCdの少なくとも一種を合計で0.5〜
５重量％より成るものである。
本発明の摺動接点材料に於いて、Au65〜75重
量％、Pd3〜８重量％、Ag5〜15重量％、Cu10〜
18重量％、Zn0.1〜２重量％と成分組成を限定し
た理由は、従来広く用いられていたAu70重量％、
Pt5重量％、Ag10重量％、Cu14重量％、Ni1重量
％より成る摺動接点材料中のPtをPdに置換し、
またNiをZnに置換することにより、摺動時の機
械的、電気的腐食を抑え、酸化物の発生を減少
し、耐摩耗性を向上させることができるからであ
り、各成分の組成に幅を持たせたのは、この摺動
接点材料にて作つた摺動接点の相手方となる摺動
接点の材質及び機械的性質に対応する為である。
また組成比でAu65〜75重量％、Pd3〜８重量
％、Ag5〜15重量％、Cu10〜18重量％、Zn0.1〜
２重量％のAu―Pd―Ag―Cu―Znが95.0〜99.5重
量％及び残部がNb、Ba及びCdの少なくとも一種
を合計で0.5〜５重量％とする理由は、Nb、Ba
及びCdの少なくとも一種を、摺動時に酸化物と
して発生させ、これらを潤滑剤として機能させる
為で、Nb、Ba及びCdの少なくとも一種を合計で
0.5重量％未満ではその機能を発揮させることが
できず、5.0重量％を超えると、酸化物の発生が
多過ぎて接触抵抗が高く且つ不安定となるもので
ある。
次に本発明の摺動接点材料の具体的な実施例と
従来例について説明する。
下記の表の左欄に示す成分組成の実施例１〜16
の摺動接点材料と従来例の摺動接点材料にて作つ
た厚さ1.0mm、幅９mmの摺動接点を外周に備えた
直径10mm、幅10mmのコミテーターにPd35重量％、
Ag30重量％、Au10重量％、Pt10重量％、Cu14
重量％、Zn1重量％より成る刷子接点を有する刷
子を接触力50ｇにて接触させ、温度23℃（室内）、
湿度67％RH（室内）、回転数1000回転／分で７時
間、13.2Km摺動試験し、接触抵抗ならびに摩耗量
を測定した処、下記の表の右欄に示すような結果
を得た。
The present invention relates to improvements in sliding contact materials. Conventional sliding contact materials include Au70% by weight and Pt5.
Weight%, Ag10 weight%, Cu14 weight%, Nil weight%
(1965)
See page 30 of "New Contact Materials" edited by Japan Electronic Materials Technology Association, published by Kogyo Nichi-Nichi Shimbun on July 8, 2016. ) A commutator equipped with a sliding contact made of this sliding contact material will have a sliding resistance depending on its processing history, hardness balance, usage conditions, etc., depending on the brush that is the mating sliding contact. Because of the oxides generated by mechanical and electrical corrosion, wear resistance deteriorates and wear particles are likely to be generated, and when wear particles are generated, noise is generated. The present invention was made to solve these problems with conventional sliding contact materials, and improves wear resistance by using oxides generated by mechanical and electrical corrosion during sliding as a lubricant. It is an object of the present invention to provide a sliding contact material which can also provide low and stable contact resistance. One of the sliding contact materials of the present invention includes Au65~75% by weight, Pd3~8% by weight, Ag5~15% by weight, Cu10~
It consists of 18% by weight and 0.1 to 2% by weight of Zn. Another sliding contact material of the present invention has a composition ratio of
Au65-75% by weight, Pd3-8% by weight, Ag5-15% by weight, Cu10-18% by weight, Zn0.1-2% by weight.
Pd-Ag-Cu-Zn is 95.0 to 99.5% by weight and the balance is
At least one of Nb, Ba and Cd in total of 0.5~
It consists of 5% by weight. In the sliding contact material of the present invention, Au65~75% by weight, Pd3~8% by weight, Ag5~15% by weight, Cu10~
The reason why we limited the composition to 18% by weight, 0.1 to 2% by weight of Zn was that 70% by weight of Au, which had been widely used in the past,
Substituting Pt with Pd in a sliding contact material consisting of 5% by weight of Pt, 10% by weight of Ag, 14% by weight of Cu, and 1% by weight of Ni,
In addition, by replacing Ni with Zn, it is possible to suppress mechanical and electrical corrosion during sliding, reduce the generation of oxides, and improve wear resistance. The reason for this is to correspond to the material and mechanical properties of the sliding contact that is the counterpart of the sliding contact made of this sliding contact material. In addition, the composition ratio is Au65~75% by weight, Pd3~8% by weight, Ag5~15% by weight, Cu10~18% by weight, Zn0.1~
The reason why 2% by weight of Au-Pd-Ag-Cu-Zn is 95.0 to 99.5% by weight and the balance is 0.5 to 5% by weight of at least one of Nb, Ba and Cd in total is that Nb, Ba
This is to generate at least one of Nb, Ba and Cd as an oxide during sliding and to function as a lubricant, and at least one of Nb, Ba and Cd in total.
If it is less than 0.5% by weight, the function cannot be exhibited, and if it exceeds 5.0% by weight, too much oxide is generated, resulting in high contact resistance and instability. Next, specific examples and conventional examples of the sliding contact material of the present invention will be described. Examples 1 to 16 of the component compositions shown in the left column of the table below
A commutator with a diameter of 10 mm and a width of 10 mm is equipped with a sliding contact of 1.0 mm in thickness and 9 mm in width on the outer periphery made of the sliding contact material of 2008 and the conventional sliding contact material, and Pd35% by weight,
Ag30wt%, Au10wt%, Pt10wt%, Cu14
A brush with a brush contact made of 1% by weight Zn was brought into contact with a contact force of 50g, and the temperature was 23℃ (indoors).
A sliding test of 13.2 km was carried out for 7 hours at a humidity of 67% RH (indoors) and a rotation speed of 1000 rpm, and the contact resistance and amount of wear were measured, and the results shown in the right column of the table below were obtained.
【表】
上記の表で明らかなように実施例１〜16の摺動
接点材料にて作つた摺動接点は、従来例の摺動接
点材料にて作つた摺動接点に比べ、接触抵抗が低
く且つばらつきが少なく安定していることが判
る。また摩耗量についても著しく少なく、耐摩耗
性に優れていることが判る。これはひとえに酸化
物の発生を減少したり、また発生する酸化物が潤
滑剤となりしかもやわらかい為容易に除去できた
りする為である。
以上詳記した通り本発明の摺動接点材料は、摺
動時に発生する酸化物が減少して耐摩耗性が向上
し、またNb、Ba及びCdの少なくとも一種を合計
で0.5〜5.0重量％とすることにより発生する酸化
物が潤滑剤となつて、より耐摩耗性が向上し、且
つその酸化物がやわらかい為摺動作用により容易
に除去されるので接触抵抗が低く安定する。従つ
て従来の摺動接点材料にとつて代わることのでき
る画期的な摺動接点材料と云える。[Table] As is clear from the table above, the sliding contacts made with the sliding contact materials of Examples 1 to 16 have a higher contact resistance than the sliding contacts made with the conventional sliding contact materials. It can be seen that it is low and stable with little variation. Furthermore, the amount of wear was significantly small, indicating that the wear resistance was excellent. This is solely because it reduces the generation of oxides, and because the generated oxides act as a lubricant and are soft, they can be easily removed. As detailed above, the sliding contact material of the present invention reduces oxides generated during sliding, improves wear resistance, and contains at least one of Nb, Ba, and Cd in a total amount of 0.5 to 5.0% by weight. The oxides generated by this act as a lubricant, further improving wear resistance, and since the oxides are soft, they can be easily removed by sliding action, resulting in low and stable contact resistance. Therefore, it can be said to be an epoch-making sliding contact material that can replace conventional sliding contact materials.
Claims (1)
重量％、Cu10〜18重量％、Zn0.1〜２重量％より
成る摺動接点材料。 ２ 組成比でAu65〜75重量％、Pd3〜８重量％、
Ag5〜15重量％、Cu10〜18重量％、Zn0.1〜２重
量％のAu―Pd―Ag―Cu―Znが95.0〜99.5重量％
及び残部がNb、Ba及びCdの少なくとも一種を合
計で0.5〜５重量％より成る摺動接点材料。[Claims] 1 Au65-75% by weight, Pd3-8% by weight, Ag5-15
A sliding contact material consisting of 10-18% Cu and 0.1-2% Zn by weight. 2 Composition ratio: Au65-75% by weight, Pd3-8% by weight,
95.0-99.5% by weight of Au-Pd-Ag-Cu-Zn with Ag5-15% by weight, Cu10-18% by weight, Zn0.1-2% by weight
and the balance is a total of 0.5 to 5% by weight of at least one of Nb, Ba, and Cd.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58052065A JPS59177338A (en) | 1983-03-28 | 1983-03-28 | Sliding contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58052065A JPS59177338A (en) | 1983-03-28 | 1983-03-28 | Sliding contact material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59177338A JPS59177338A (en) | 1984-10-08 |
| JPH0252714B2 true JPH0252714B2 (en) | 1990-11-14 |
Family
ID=12904406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58052065A Granted JPS59177338A (en) | 1983-03-28 | 1983-03-28 | Sliding contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59177338A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102517470A (en) * | 2011-12-31 | 2012-06-27 | 昆明贵金属研究所 | Novel rhotanium and preparation method thereof |
-
1983
- 1983-03-28 JP JP58052065A patent/JPS59177338A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59177338A (en) | 1984-10-08 |
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