JPH0360890B2 - - Google Patents
Info
- Publication number
- JPH0360890B2 JPH0360890B2 JP57176912A JP17691282A JPH0360890B2 JP H0360890 B2 JPH0360890 B2 JP H0360890B2 JP 57176912 A JP57176912 A JP 57176912A JP 17691282 A JP17691282 A JP 17691282A JP H0360890 B2 JPH0360890 B2 JP H0360890B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- brush
- contact
- sliding contact
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 19
- 229910052738 indium Inorganic materials 0.000 claims description 6
- 229910052758 niobium Inorganic materials 0.000 claims description 6
- 229910052793 cadmium Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229910017944 Ag—Cu Inorganic materials 0.000 claims 1
- 239000000956 alloy Substances 0.000 description 8
- 229910052737 gold Inorganic materials 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 3
- 229910052763 palladium Inorganic materials 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 229910017518 Cu Zn Inorganic materials 0.000 description 2
- 229910017752 Cu-Zn Inorganic materials 0.000 description 2
- 229910017943 Cu—Zn Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005461 lubrication Methods 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、Au9
〜11重量％、Pt9〜11重量％、Pd34〜36重量％、
Ag29〜31重量％、Cu13〜15重量％、Zn0.5〜1.5
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、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、各元素の複合
添加による相乗効果と相俟つて、特にAu、Ptに
よる耐蝕性、Ag、Pd、Cuによるばね性、Cu、
Pt、Auなどによる機械的強度、Znの鋳造性、加
工性の点に着目されて、Au、Pt、Pd、Ag、Cu、
Zn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、整流子との耐摩耗性が劣り、摩耗粉が生じ易
く、接触抵抗が不安定で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、発生する酸化物を潤
滑剤とし、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Au9
〜11重量％、Pt9〜11重量％、Pd34〜36重量％、
Ag29〜31重量％、Cu13〜15重量％、Zn0.5〜1.5
重量％のAu−Pt−Pd−Ag−Cu−Znが93〜99.5
重量％及び残部がNb、In及びCdの少なくとも一
種を合計で0.5〜７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Au9〜11重量％、Pt9〜11重量％、Pd34〜36重
量％、Ag29〜31重量％、Cu13〜15重量％、
Zn0.5〜1.5重量％のAu−Pt−Pd−Ag−Cu−Zn
が93〜99.5重量％及び残部がNb、In及びCdの少
なくとも一種を合計で0.5〜７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
べく潤滑剤となる酸化物を適量発生させる為で、
Nb、In及びCd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、Nb、In
及びCdのうち少なくとも一種を合計で７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、Cu、Zn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Nb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, Au9 is used as sliding contact material for brushes.
~11 wt%, Pt9~11 wt%, Pd34~36 wt%,
Ag29~31wt%, Cu13~15wt%, Zn0.5~1.5
Alloy materials consisting of
(See page 30). This alloy material has particularly excellent properties such as mechanical strength, corrosion resistance, and spring properties, and together with the synergistic effect of the combined addition of each element, it has particularly good corrosion resistance due to Au and Pt, Ag, Pd, and Cu. Spring properties due to Cu,
Focusing on the mechanical strength of Pt, Au, etc., and the castability and workability of Zn, Au, Pt, Pd, Ag, Cu,
It is made by limiting elements such as Zn and their content. However, brush contacts made of this alloy material have poor abrasion resistance with the commutator, tend to generate abrasion powder, and have unstable contact resistance, causing noise generation. The present invention has been made to eliminate such drawbacks, and uses the above-mentioned alloy material as a base material and adds a small amount of a specific material to it, uses the generated oxide as a lubricant, and improves wear resistance. It is an object of the present invention to provide a sliding contact material for a brush that has a high quality. The sliding contact material for brushes of the present invention has a composition ratio of Au9
~11 wt%, Pt9~11 wt%, Pd34~36 wt%,
Ag29~31wt%, Cu13~15wt%, Zn0.5~1.5
Weight% Au-Pt-Pd-Ag-Cu-Zn is 93~99.5
The balance is a total of 0.5 to 7% by weight of at least one of Nb, In, and Cd. In the sliding contact material for brushes of the present invention, the composition ratio is 9 to 11% by weight of Au, 9 to 11% by weight of Pt, 34 to 36% by weight of Pd, 29 to 31% by weight of Ag, 13 to 15% by weight of Cu,
Au-Pt-Pd-Ag-Cu-Zn with Zn0.5-1.5 wt%
The reason why the balance is 93 to 99.5% by weight and the balance is 0.5 to 7% by weight of at least one of Nb, In, and Cd is that oxides that act as lubricants are used to improve the wear resistance of the conventional alloy material. In order to generate an appropriate amount,
A total of 0.5 of at least one of Nb, In and Cd
If it is less than % by weight, it cannot exhibit its effect, and Nb, In
and at least one of Cd, totaling 7% by weight
If it exceeds this, the amount of oxides generated will increase, the contact resistance will increase, and furthermore, it will become unstable. In addition, by setting the content of Au, Pt, Pd, Ag, Cu, and Zn 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 loss. This is something that will happen. Next, a conventional alloy material was used as a base material, and Nb was added thereto to obtain a brush sliding contact material having the composition shown in Example 1 in the table. Brush wire rods with a wire diameter of 0.7 mm were made using sliding contact materials for conventional brushes and conventional sliding contact materials for brushes, each of which was cut to a length of 8 mm, and two wires were placed in parallel with one end having a width of 10 mm and a length of 10 mm. 13mm, thickness 0.2mm
A brush contact was made by welding it to the base material and bending a 2R arc-shaped contact part at the other end. Then, each brush contact was brought into contact with a disc-shaped commutator, the commutator was rotated forward and backward, and a sliding test was conducted 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 revolutions/min Circumferential speed: 130 to 120 m/min Contact force: 100 g Test time: 7 hours
【表】
上記の表で明らかなように実施例１〜15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、接触抵抗が低く安定していることが判る。
これはひとえに実施例１〜15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、摺動時にNb、In、Cdの酸化物が発生し、こ
の酸化物が潤滑剤となり、また酸化物が軟らかい
為、摺動作用により容易に除去されるので、接触
抵抗は低く安定するからに他ならない。耐摩耗性
が向上す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よりも低く安定し
た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 above table, it can be seen that the brush contacts of Examples 1 to 15 had significantly less wear than the conventional brush contacts, and the contact resistance was 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 15, generates oxides of Nb, In, and Cd during sliding, and these oxides provide lubrication. This is because the contact resistance is low and stable because the oxide is soft and easily removed by sliding action. This is because it improves wear resistance. 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 a lower and more stable contact resistance than when using conventional brush sliding contact materials.
Claims (1)
Pd34〜36重量％、Ag29〜31重量％、Cu13〜15重
量％、Zn0.5〜1.5重量％のAu−Pt−Pd−Ag−Cu
−Znが93〜99.5重量％及び残部がNb、In及びCd
の少なくとも一種を合計で0.5〜７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 of Au9 to 11% by weight, Pt9 to 11% by weight,
Au-Pt-Pd-Ag-Cu with Pd34-36 wt%, Ag29-31 wt%, Cu13-15 wt%, Zn0.5-1.5 wt%
−93 to 99.5% by weight of Zn and balance Nb, In and Cd
A sliding contact material for a brush, characterized in that the total amount of at least one of the following is 0.5 to 7% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57176912A JPS5967354A (en) | 1982-10-07 | 1982-10-07 | Sliding contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57176912A JPS5967354A (en) | 1982-10-07 | 1982-10-07 | Sliding contact material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5967354A JPS5967354A (en) | 1984-04-17 |
| JPH0360890B2 true JPH0360890B2 (en) | 1991-09-18 |
Family
ID=16021927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57176912A Granted JPS5967354A (en) | 1982-10-07 | 1982-10-07 | Sliding contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5967354A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103249852A (en) * | 2010-12-09 | 2013-08-14 | 株式会社德力本店 | Material for electrical/electronic use |
| JP2017139682A (en) * | 2016-02-05 | 2017-08-10 | セイコーエプソン株式会社 | Vibration piece, manufacturing method for the same, oscillator, electronic apparatus, movable body, and base station |
-
1982
- 1982-10-07 JP JP57176912A patent/JPS5967354A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5967354A (en) | 1984-04-17 |