JP2000034529A - Sliding contact material - Google Patents
Sliding contact materialInfo
- Publication number
- JP2000034529A JP2000034529A JP10198409A JP19840998A JP2000034529A JP 2000034529 A JP2000034529 A JP 2000034529A JP 10198409 A JP10198409 A JP 10198409A JP 19840998 A JP19840998 A JP 19840998A JP 2000034529 A JP2000034529 A JP 2000034529A
- Authority
- JP
- Japan
- Prior art keywords
- contact material
- sliding contact
- main component
- sliding
- commutator
- 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.)
- Pending
Links
Landscapes
- Laminated Bodies (AREA)
- Contacts (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、摺動接点材料に係
り、特にマイクロモータの整流子に適する摺動接点材料
に関する。The present invention relates to a sliding contact material, and more particularly to a sliding contact material suitable for a commutator of a micromotor.
【０００２】[0002]
【従来の技術】従来より、マイクロモータ等の整流子と
してＡｇ−Ｃｄ１ｗｔ％やＡｇ−Ｃｕ６ｗｔ％−Ｃｄ２
ｗｔ％の摺動接点材料が用いられている。ところが近
時、Ｃｄが含有された摺動接点材料は、その生産上ある
いは使用上において、Ｃｄがもたらす環境汚染や公害等
の問題が懸念されている。そのため、Ｃｄを含まない摺
動接点材料が要望されている。また、Ｃｄを含む摺動接
点材料は比較的耐摩耗性が不十分であるので、かかる摺
動接点材料をマイクロモータ等の整流子に用いた場合、
モータの寿命が短くなるという難点がある。2. Description of the Related Art Conventionally, as a commutator for a micromotor or the like, Ag-Cd 1 wt% or Ag-Cu 6 wt% -Cd 2
A sliding contact material of wt% is used. Recently, however, there is a concern that the Cd-containing sliding contact material may cause problems such as environmental pollution and pollution caused by Cd in production or use. Therefore, a sliding contact material containing no Cd is demanded. Further, since the sliding contact material containing Cd has relatively insufficient wear resistance, when such a sliding contact material is used for a commutator such as a micromotor,
There is a disadvantage that the life of the motor is shortened.
【０００３】[0003]
【発明が解決しようとする課題】そこで本発明の課題
は、Ｃｄが含有しないことにより環境汚染、公害等の問
題を排除するとともに、耐摩耗性に優れた摺動接点材料
を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a sliding contact material which is excellent in wear resistance while eliminating problems such as environmental pollution and pollution due to the absence of Cd. .
【０００４】[0004]
【課題を解決するための手段】上記課題を解決するため
に、本発明にかかる摺動接点材料は、Ａｇを主成分と
し、少なくとも０．０１ｗｔ％〜５．０ｗｔ％のＧｄ
（ガドリニウム；原子番号６４）を含有していることを
特徴とする。In order to solve the above-mentioned problems, a sliding contact material according to the present invention contains Ag as a main component and has at least 0.01 wt% to 5.0 wt% of Gd.
(Gadolinium; atomic number 64).
【０００５】また、本発明にかかる各摺動接点材料は、
Ａｇを主成分とし、少なくとも２．０ｗｔ％〜１２．０
ｗｔ％のＣｕと０．０１ｗｔ％〜５．０ｗｔ％のＧｄを
含有していることを特徴とする。特に、Ｃｕの含有率
は、４．０ｗｔ％〜１０．０ｗｔ％とすることが望まし
い。Further, each sliding contact material according to the present invention comprises:
Ag as a main component and at least 2.0 wt% to 12.0
It is characterized by containing wt% of Cu and 0.01 wt% to 5.0 wt% of Gd. In particular, the content of Cu is desirably 4.0 wt% to 10.0 wt%.
【０００６】また、上記摺動接点材料の表面に、ＡｕＡ
ｇ合金を主成分とする薄膜が積層されていることを特徴
とする。Further, AuA is formed on the surface of the sliding contact material.
A thin film mainly composed of a g alloy is laminated.
【０００７】上記本発明の摺動接点材料は、主成分であ
るＡｇ又はＡｇＣｕ合金に対して、共晶組織を有すると
ともに微細で均一な六方最密構造のＧｄが分散せしめら
れているので、相手部材との摺動に伴って発生する熱に
よりＧｄの微細な酸化物Ｇｄ 2 Ｏ3 が摺動面に生成され
る。この酸化物が微研摩作用をもたらし、常に微細な摩
耗粉を発生させる。その結果、当該摺動接点材料と相手
部材との間にこの摩耗粉が介在してころがり摩擦を起こ
すので、滑り摩擦に比べて摩擦抵抗がはるかに小さくな
り、摩耗耐性がさらに向上する。[0007] The sliding contact material of the present invention is a main component.
Has a eutectic structure for Ag or AgCu alloy
Both are fine and uniform Gd with hexagonal close-packed structure dispersed
Heat generated by sliding with the mating member
Finer Gd oxide Gd TwoOThree Is generated on the sliding surface
You. This oxide provides a fine polishing action,
Generates wear powder. As a result, the sliding contact material
This abrasion powder is interposed between members and causes rolling friction.
Friction resistance is much smaller than sliding friction.
Wear resistance is further improved.
【０００８】[0008]
【発明の実施の形態】以下、本発明にかかる摺動接点材
料の実施形態を説明する。本発明を適用した摺動接点材
料は、Ａｇ又はＡｇＣｕ合金に少なくとも０．０１ｗｔ
％〜５．０ｗｔ％のＧｄを添加し拡散してある。Ｇｄを
０．０１ｗｔ％〜５．０ｗｔ％添加する理由は、摺動摩
耗を低減させるためで、０．０１ｗｔ％未満ではその効
果が無く、５．０ｗｔ％を超えると加工性が劣化して圧
延加工ができなくなるからである。また、ＡｇＣｕ合金
にＧｄを含有させた摺動接点材料において、Ｃｕを２．
０ｗｔ％〜１２．０ｗｔ％添加する理由は、硬度を高め
耐磨耗性を向上させるためで、２．０ｗｔ％未満では効
果が殆んど見られず、１２．０ｗｔ％を超えると相手部
材との接触抵抗が高くなり、摺動が円滑に行われなくな
るからである。したがって、Ｃｕの含有率としては、
４．０ｗｔ％〜１０．０ｗｔ％の範囲が特に好ましい。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the sliding contact material according to the present invention will be described. The sliding contact material to which the present invention is applied contains at least 0.01 wt% of Ag or AgCu alloy.
% To 5.0% by weight of Gd. The reason for adding 0.01 wt% to 5.0 wt% of Gd is to reduce sliding wear. If it is less than 0.01 wt%, the effect is not obtained, and if it exceeds 5.0 wt%, workability is deteriorated and rolling is performed. This is because processing cannot be performed. Further, in a sliding contact material containing Gd in an AgCu alloy, Cu is added in an amount of 2.
The reason for adding 0 wt% to 12.0 wt% is to increase the hardness and improve the abrasion resistance. When the content is less than 2.0 wt%, the effect is hardly seen, and when the content exceeds 12.0 wt%, the mating member is not added. This is because the contact resistance becomes high, and the sliding is not performed smoothly. Therefore, as the content of Cu,
The range of 4.0 wt% to 10.0 wt% is particularly preferred.
【０００９】本発明の摺動接点材料は、Ａｇを主成分と
して、ＧｄもしくはＧｄとＣｕが少なくとも拡散せしめ
られているが、これらの添加物の他に耐摩耗性を向上さ
せるために、Ｃ，Ｎｉ，Ｓｎ，Ｍｏ，Ｃｒ，Ｓｍ等の微
量成分を添加してもよい。In the sliding contact material of the present invention, Gd or Gd and Cu are diffused at least with Ag as a main component. In addition to these additives, C and C are added to improve wear resistance. Minor components such as Ni, Sn, Mo, Cr, and Sm may be added.
【００１０】[0010]
【実施例】ここで、表１を参照して、本発明の摺動接点
材料の実施例を従来例と比較しながら具体的に説明す
る。表１は、主成分であるＡｇに対して添加する成分の
配合比率、および各配合材をモータの整流子に用いたと
きの接触抵抗と摩耗量を測定した結果を示している。左
欄の実施例１〜６は、主成分であるＡｇに対してＧｄま
たはＣｕとＧｄをそれぞれ配合比率を変えて添加した配
材であり、従来例１〜４は主成分であるＡｇに対してＣ
ｕ又はＣｄを又はＣｕとＧｄをそれぞれ配合比率を変え
て添加した配材である。これら１０種類の配材を各１ｋ
ｇずつ溶解して板材に鋳造した。次にこの板材を面削
し、焼鈍した後、圧延し、さらに温度６００〜７００℃
のＨ2 ＋Ｎ2 雰囲気中で３０分間焼鈍した。次いでこれ
を酸洗いし、圧延して厚さ０．５ｍｍ、幅５０ｍｍの帯
状の摺動接点材料を得た。Here, with reference to Table 1, an embodiment of the sliding contact material of the present invention will be specifically described in comparison with a conventional example. Table 1 shows the results of measurement of the mixing ratio of the components added to Ag, which is the main component, and the contact resistance and abrasion loss when each compound was used for a commutator of a motor. Examples 1 to 6 in the left column are materials in which Gd or Cu and Gd are added to Ag as a main component at different mixing ratios, and Conventional Examples 1 to 4 are based on Ag as a main component. C
This is a distribution material in which u or Cd or Cu and Gd are added at different mixing ratios. Each of these 10 types of distribution is 1k
Each g was melted and cast into a plate material. Next, this sheet material is beveled, annealed, rolled, and further heated to a temperature of 600 to 700 ° C.
In an H 2 + N 2 atmosphere for 30 minutes. Next, this was pickled and rolled to obtain a strip-shaped sliding contact material having a thickness of 0.5 mm and a width of 50 mm.
【００１１】これらの摺動接点材料を用いて、直径６ｍ
ｍ、長さ１０ｍｍの整流子ホルダーの外周に装着させる
整流子片を形成した。そして、この整流子片の外周面に
Ａｇ−Ｐｄ５０ｗｔ％よりなる直径１ｍｍ、長さ８ｍｍ
の刷子線材を３本有する刷子接点を相対向するように摺
動させて、以下の条件にて整流子の回転試験を行った。
当該回転試験において、整流子片の接触抵抗と摩耗量を
測定したところ、表１の右欄に示すような結果を得た。 試験条件 電 流：ＤＣ １５０ｍＡ 電 圧：１３Ｖ 整流子の回転数：２４００ｒｐｍ 整流子の回転時間：５０００時間 刷子接点の接触力：２０ｇ／３本Using these sliding contact materials, a diameter of 6 m
A commutator piece to be mounted on the outer periphery of a commutator holder having a length of 10 mm and a length of 10 mm was formed. Then, a diameter of 1 mm and a length of 8 mm made of Ag-Pd 50 wt% is formed on the outer peripheral surface of the commutator piece.
The brush contact having three brush wires was slid so as to face each other, and a commutator rotation test was performed under the following conditions.
When the contact resistance and the amount of wear of the commutator pieces were measured in the rotation test, the results shown in the right column of Table 1 were obtained. Test conditions Current: DC 150 mA Voltage: 13 V Rotational speed of commutator: 2400 rpm Rotation time of commutator: 5000 hours Contact force of brush contact: 20 g / 3
【００１２】[0012]
【表１】 [Table 1]
【００１３】上記の表１の右欄に示す結果で明らかなよ
うに実施例１〜６の摺動接点材料にて形成した整流子片
は、従来例１〜５の摺動接点材料にて形成した整流子片
よりも接触抵抗が低く安定し、また摩耗量が著しく少な
いことが判る。As is clear from the results shown in the right column of Table 1 above, the commutator pieces formed of the sliding contact materials of Examples 1 to 6 are formed of the sliding contact materials of Conventional Examples 1 to 5. It can be seen that the contact resistance is lower and more stable than that of the commutator piece, and the amount of wear is remarkably small.
【００１４】次に、本発明にかかる摺動接点材料からな
る整流子片、および当該材料以外のものからなる整流子
片を備えたモータの寿命試験を下記条件にて行った。そ
の結果を表２に示す。 試験条件 電 流：ＤＣ １５０ｍＡ 電 圧：１３．２Ｖ 整流子の回転数：２４００ｒｐｍ 負 荷：９ｇ・ｃｍ 整流子片の厚さ：２０μｍ Ａｕ−Ａｇ４０ｗｔ％薄膜の厚さ：１μｍ 刷子の構造：リン青銅にＡｇ−Ｐｄ５０ｗｔ％を積層し
たクラッド材Next, a life test of a commutator piece made of the sliding contact material according to the present invention and a motor provided with a commutator piece made of a material other than the material were performed under the following conditions. Table 2 shows the results. Test conditions Current: DC 150 mA Voltage: 13.2 V Rotation speed of commutator: 2400 rpm Load: 9 g · cm Thickness of commutator piece: 20 μm Thickness of Au-Ag 40 wt% thin film: 1 μm Structure of brush: phosphor bronze Clad material laminated with 50 wt% Ag-Pd
【００１５】[0015]
【表２】 [Table 2]
【００１６】表２に示す耐久時間から明らかなように、
実施例７〜１０の摺動接点材料にはＧｄが配合されてい
るので、この材料にて形成した整流子片を備えたモータ
は、従来例５，６の摺動接点材料にて形成した整流子片
を備えたモータよりもはるかに耐久時間が長いことが判
る。特に、Ａｕ−Ａｇ４０ｗｔ％薄膜を整流子片の表面
に積層した場合はさらに耐久時間が長くなることが判
る。As is apparent from the durability time shown in Table 2,
Since Gd is blended in the sliding contact material of Examples 7 to 10, the motor provided with the commutator piece formed of this material is used as the commutator formed of the sliding contact material of Conventional Examples 5 and 6. It can be seen that the endurance time is much longer than that of the motor having the small pieces. In particular, it can be seen that when the Au-Ag 40 wt% thin film is laminated on the surface of the commutator piece, the durability time is further increased.
【００１７】[0017]
【発明の効果】以上説明したように、Ｇｄを含有した本
発明の摺動接点材料を用いることにより、環境汚染、公
害等の問題が懸念されるＣｄを含有せず、しかも接触抵
抗が低く安定していて、摩耗量が著しく少ない摺動部材
を形成することが可能となる。その結果、当該摺動接点
材料からなる整流子片をマイクロモータ等の電動機に適
用した場合、電動機の寿命を極めて長期化することがで
きる。As described above, by using the sliding contact material of the present invention containing Gd, it does not contain Cd, which may cause problems such as environmental pollution and pollution, and has a low contact resistance and is stable. As a result, it is possible to form a sliding member having an extremely small amount of wear. As a result, when the commutator piece made of the sliding contact material is applied to a motor such as a micromotor, the life of the motor can be extremely extended.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 松沢 ミイ 長野県駒ヶ根市赤穂14−888番地 株式会 社三協精機製作所駒ヶ根工場内 Ｆターム(参考） 4F100 AB01A AB17A AB24A AB24B AB25B AB33B BA01 BA02 GB51 JK09 JK16 JL00 YY00A 5G050 AA01 AA03 AA13 BA06 CA01 DA10 EA20 FA01 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Mie Matsuzawa 14-888 Ako, Komagane-shi, Nagano F-term in Komagane Plant of Sankyo Seiki Seisakusho Co., Ltd. 4F100 AB01A AB17A AB24A AB24B AB25B AB33B BA01 BA02 GB51 JK09 JK16 JL00 YY00A 5G050 AA01 AA03 AA13 BA06 CA01 DA10 EA20 FA01
Claims (4)
ｗｔ％〜５．０ｗｔ％のＧｄを含有してなる摺動接点材
料。1. The method according to claim 1, wherein Ag is a main component and at least 0.01%.
A sliding contact material containing Gd in an amount of from 5.0% by weight to 5.0% by weight.
ｔ％〜１２．０ｗｔ％のＣｕと０．０１ｗｔ％〜５．０
ｗｔ％のＧｄを含有してなる摺動接点材料。2. Ag is a main component, at least 2.0 w
t% to 12.0 wt% Cu and 0.01 wt% to 5.0
A sliding contact material containing wt% of Gd.
ｗｔ％である請求項２記載の摺動接点材料。3. A Cu content of 4.0 wt% to 10.0.
The sliding contact material according to claim 2, which is in wt%.
動接点材料の表面に、ＡｕＡｇ合金を主成分とする薄膜
が積層されていることを特徴とする摺動接点材料。4. A sliding contact material, characterized in that a thin film mainly composed of an AuAg alloy is laminated on the surface of the sliding contact material according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10198409A JP2000034529A (en) | 1998-07-14 | 1998-07-14 | Sliding contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10198409A JP2000034529A (en) | 1998-07-14 | 1998-07-14 | Sliding contact material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000034529A true JP2000034529A (en) | 2000-02-02 |
Family
ID=16390654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10198409A Pending JP2000034529A (en) | 1998-07-14 | 1998-07-14 | Sliding contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000034529A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002002834A1 (en) * | 2000-07-03 | 2002-01-10 | Kazuo Ogasa | Hard noble-metal alloy member and process for producing the same |
| JP4435862B1 (en) * | 2009-02-06 | 2010-03-24 | 謙治 出分 | Silver-containing alloy plating bath and electrolytic plating method using the same |
-
1998
- 1998-07-14 JP JP10198409A patent/JP2000034529A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002002834A1 (en) * | 2000-07-03 | 2002-01-10 | Kazuo Ogasa | Hard noble-metal alloy member and process for producing the same |
| US6913657B2 (en) | 2000-07-03 | 2005-07-05 | Kazuo Ogasa | Hard precious metal alloy member and method of manufacturing same |
| US7396424B2 (en) | 2000-07-03 | 2008-07-08 | Kazuo Ogasa | Method of manufacturing a hard precious metal alloy member |
| EP2055794A1 (en) * | 2000-07-03 | 2009-05-06 | Kazuo Ogasa | Hard precious metal alloy member and method of manufacturing same |
| JP4435862B1 (en) * | 2009-02-06 | 2010-03-24 | 謙治 出分 | Silver-containing alloy plating bath and electrolytic plating method using the same |
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