JPH037737B2 - - Google Patents
Info
- Publication number
- JPH037737B2 JPH037737B2 JP58113688A JP11368883A JPH037737B2 JP H037737 B2 JPH037737 B2 JP H037737B2 JP 58113688 A JP58113688 A JP 58113688A JP 11368883 A JP11368883 A JP 11368883A JP H037737 B2 JPH037737 B2 JP H037737B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- brush
- contact
- sliding contact
- brushes
- 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
- 239000000463 material Substances 0.000 claims description 21
- 229910052726 zirconium Inorganic materials 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 229910052738 indium Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 description 9
- 229910052787 antimony Inorganic materials 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 229910000765 intermetallic Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Contacts (AREA)
- Conductive Materials (AREA)
Description
本発明は、刷子用摺動接点材料の改良に関す
る。
従来、摺動接点材料としては各種材料が用いら
れ、とりわけ刷子用摺動接点材料としては、
Au19〜21重量％、Pt4〜６重量％、Pd44〜46重
量％、Ag29〜31重量％より成る合金材料が広く
用いられていた（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）。
この合金材料は、各元素の複合添加による相乗
効果によつてとりわけ機械的強度、耐蝕性、ばね
性等の優れた特性を有し、それらの点に着目され
て、Au、Pt、Pd、Agなどの元素及び含有量を
限定されて成るものである。
然し乍ら、この合金材料で製作した刷子接点で
は、整流子との摺動時の耐摩耗性が劣り、摩耗粉
が生じ易く、ノイズ発生の原因となつていた。
本発明は、斯かる欠点を解消すべくなされたも
のであり、前記合金材料を基材としてこれに特定
の材料を僅かに添加させて、耐摩耗性を向上させ
た刷子用摺動接点材料を提供せんとするものであ
る。
本発明の刷子用摺動接点材料は、組成比で
Au19〜21重量％、Pt4〜６重量％、Pd44〜46重
量％、Ag29〜31重量％のAu−Pt−Pd−Agが92
〜98.5重量％及び残部がSb1.0〜5.0重量％、In、
Ti、Tl及びZrの少なくとも一種を合計で0.5〜３
重量％から成るものである。
本発明の刷子用摺動接点材料に於いて、組成比
でAu19〜21重量％、Pt4〜６重量％、Pd44〜46
重量％、Ag29〜31重量％のAu−Pt−Pd−Agが
92〜98.5重量％及び残部がSb1.0〜5.0重量％、In、
Ti、Tl及びZrの少なくとも一種を合計で0.5〜３
重量％としている理由は、前記従来の合金材料の
耐摩耗性を向上すべくSbとIn、Ti、Tl及びZrの
金属間化合物の分散によつて硬くする為で、Sb
が1.0重量％未満あるいは、In、Ti、Tl及びZrの
うち少なくとも一種を合計で0.5重量％未満では
その効果を発揮できず、Sbが５重量％を超える
かあるいは、In、Ti、Tl及びZrのうち少なくと
も一種を合計で３重量％を超えると酸化物の発生
量が多くなり、接触抵抗が高くなり、その上不安
定となるものである。また、Au、Pt、Pd、Ag
の含有量は、前記従来の合金材料の組成比に変更
を加えない範囲とすることにより、従来の合金材
料の特性は損なわれることなく発揮されることと
なるものである。
次に従来の合金材料を基材とし、これにSbと
Inを添加し、表の実施例１に示す成分組成の刷子
用摺動接点材料とし、以下同様にして表に示す成
分組成の本発明による刷子用摺動接点材料と従来
の刷子用摺動接点材料を用いて夫々線径0.7mmの
刷子線材を作り、これを各々長さ８mmに切断し、
２本並列させて一端を幅10mm、長さ13mm、厚さ
0.2mmの台材に溶接し、他端に2Rの円弧状の接触
部を曲成して刷子接点を作つた。そして夫々の刷
子接点を円盤状の整流子に接触させ、整流子を正
逆回転させて下記の試験条件にて摺動試験を行
い、摩耗量及び接触抵抗を測定した処、下記の表
の右欄に示すような結果を得た。
試験条件
電 流：直流0.6A
電 圧：12V
負 荷：抵抗負荷
回転速度：1000回転／分
周 速：130〜120m／min
接触力 ：100g
試験時間：７時間
The present invention relates to improvements in sliding contact materials for brushes. Conventionally, various materials have been used as sliding contact materials, and in particular, as sliding contact materials for brushes,
An alloy material consisting of 19-21% by weight of Au, 4-6% by weight of Pt, 44-46% by weight of Pd, and 29-31% by weight of Ag was widely used. (See page 30 of New Contact Materials edited by Japan Electronic Materials Technology Association). This alloy material has excellent properties such as mechanical strength, corrosion resistance, and spring properties due to the synergistic effect of the combined addition of each element. The elements and content thereof are limited. However, brush contacts made of this alloy material have poor abrasion resistance when sliding with the commutator, and are likely to generate abrasion powder, causing noise. The present invention has been made to eliminate such drawbacks, and provides a sliding contact material for brushes that uses the above-mentioned alloy material as a base material and has improved wear resistance by adding a small amount of a specific material to the alloy material. This is what we intend to provide. The sliding contact material for brushes of the present invention has a composition ratio of
92 Au-Pt-Pd-Ag with Au19~21wt%, Pt4~6wt%, Pd44~46wt%, Ag29~31wt%
~98.5% by weight and the balance is Sb1.0~5.0% by weight, In,
At least one of Ti, Tl and Zr in total of 0.5 to 3
% by weight. In the sliding contact material for brushes of the present invention, the composition ratio is 19 to 21% by weight of Au, 4 to 6% by weight of Pt, and 44 to 46% by weight of Pd.
wt%, Ag29-31 wt% Au-Pt-Pd-Ag
92-98.5% by weight and the balance is Sb1.0-5.0% by weight, In,
At least one of Ti, Tl and Zr in total of 0.5 to 3
The reason why it is expressed as % by weight is that in order to improve the wear resistance of the conventional alloy material, it is made hard by dispersing Sb and intermetallic compounds of In, Ti, Tl, and Zr.
If Sb is less than 1.0% by weight, or the total amount of at least one of In, Ti, Tl and Zr is less than 0.5% by weight, the effect cannot be exhibited, and if Sb is more than 5% by weight, or In, Ti, Tl and Zr If the total amount of at least one of these exceeds 3% by weight, the amount of oxides generated will increase, contact resistance will increase, and furthermore, it will become unstable. Also, Au, Pt, Pd, Ag
By setting the content within a range that does not change the composition ratio of the conventional alloy material, the characteristics of the conventional alloy material can be exhibited without being impaired. Next, a conventional alloy material is used as a base material, and Sb and Sb are added to this.
By adding In, a brush sliding contact material having the composition shown in Example 1 of the table was prepared, and the same was applied to the brush sliding contact material of the present invention having the composition shown in the table and the conventional brush sliding contact material. Brush wire rods with a wire diameter of 0.7 mm were made using the materials, and each was cut into lengths of 8 mm.
Two pieces are placed in parallel and one end is 10mm wide, 13mm long, and thick.
A brush contact was made by welding to a 0.2 mm base material and curving a 2R arc-shaped contact part at the other end. Then, each brush contact was brought into contact with a disk-shaped commutator, and the commutator was rotated in forward and reverse directions to perform a sliding test under the following test conditions, and the wear amount and contact resistance were measured. The results shown in the column were obtained. Test conditions Current: DC 0.6A Voltage: 12V Load: Resistance load Rotation speed: 1000 rotations/divided speed: 130 to 120m/min Contact force: 100g Test time: 7 hours
【表】
上記の表で明らかなように実施例１〜14の刷子
接点は従来例の刷子接点に比し摩耗量が著しく少
なく、接触抵抗が同等に低く安定していることが
判る。これはひとえに実施例１〜14の刷子接点の
刷子線材を構成している本発明の刷子用摺動接点
材料が、SbとIn、Ti、Tl、Zrの金属間化合物の
分散によつて硬くなり、耐摩耗性が向上されるか
らに他ならない。
以上詳記した通り本発明による刷子用摺動接点
材料によれば、従来の刷子用摺動接点材料に比べ
著しく耐摩耗性に優れ、摩耗粉の発生量が極めて
少なく、ノイズの発生が殆んど無く、また従来の
刷子用摺動接点材料による場合と同等の接触抵抗
を有する刷子接点を得ることができるという効果
がある。[Table] As is clear from the table above, it can be seen that the brush contacts of Examples 1 to 14 had significantly less wear than the conventional brush contacts, and the contact resistance was equally low and stable. This is because the sliding contact material for brushes of the present invention, which constitutes the brush wire of the brush contacts of Examples 1 to 14, becomes hard due to the dispersion of intermetallic compounds of Sb, In, Ti, Tl, and Zr. This is because the wear resistance is improved. As detailed above, the sliding contact material for brushes according to the present invention has significantly superior wear resistance compared to conventional sliding contact materials for brushes, generates extremely little wear powder, and generates almost no noise. This has the advantage that it is possible to obtain a brush contact having contact resistance equivalent to that of a conventional brush contact material.
Claims (1)
Pd44〜46重量％、Ag29〜31重量％のAu−Pt−
Pd−Agが92〜98.5重量％及び残部がSb1.0〜5.0
重量％、In、Ti、Tl及びZrの少なくとも一種を
合計で0.5〜３重量％であることを特徴とする刷
子用摺動接点材料。1 Composition ratio: Au19-21% by weight, Pt4-6% by weight,
Au-Pt- with Pd44~46wt%, Ag29~31wt%
Pd-Ag is 92-98.5% by weight and the balance is Sb1.0-5.0
A sliding contact material for a brush, characterized in that the total content of at least one of In, Ti, Tl and Zr is 0.5 to 3% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58113688A JPS605842A (en) | 1983-06-24 | 1983-06-24 | Sliding contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58113688A JPS605842A (en) | 1983-06-24 | 1983-06-24 | Sliding contact material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS605842A JPS605842A (en) | 1985-01-12 |
| JPH037737B2 true JPH037737B2 (en) | 1991-02-04 |
Family
ID=14618659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58113688A Granted JPS605842A (en) | 1983-06-24 | 1983-06-24 | Sliding contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS605842A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989004767A1 (en) * | 1987-11-19 | 1989-06-01 | Matsushita Electric Industrial Co., Ltd. | Thermal head |
-
1983
- 1983-06-24 JP JP58113688A patent/JPS605842A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS605842A (en) | 1985-01-12 |