JPH0361736B2 - - Google Patents
Info
- Publication number
- JPH0361736B2 JPH0361736B2 JP59079733A JP7973384A JPH0361736B2 JP H0361736 B2 JPH0361736 B2 JP H0361736B2 JP 59079733 A JP59079733 A JP 59079733A JP 7973384 A JP7973384 A JP 7973384A JP H0361736 B2 JPH0361736 B2 JP H0361736B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- contact
- brush
- 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 17
- 229910052787 antimony Inorganic materials 0.000 claims description 7
- 229910052738 indium Inorganic materials 0.000 claims description 7
- 229910052698 phosphorus Inorganic materials 0.000 claims description 7
- 229910052718 tin Inorganic materials 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- 229910052726 zirconium Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000000956 alloy Substances 0.000 description 6
- 229910052737 gold Inorganic materials 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000765 intermetallic Inorganic materials 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Landscapes
- Contacts (AREA)
- Conductive Materials (AREA)
Description
本発明は、刷子用摺動接点材料（以下、「摺動
接点材料」という。）の改良に関する。
従来、摺動接点材料としては各種材料が考えら
れ、とりわけ刷子接点用の材料としては、Au30
〜50重量％、Ag20〜40重量％、Pd20〜40重量％
より成る合金材料が考えられていた。
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に劣り、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
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は、組成比でAu30〜50
重量％、Ag20〜40重量％、Pd20〜40重量％のAu
−Ag−Pdが93〜98.5重量％及び残部がMn1〜５
重量％、In、Sn、Sb、Ｐ、Ti及びZrの少なくと
も一種を合計で0.5〜２重量％から成るものであ
る。
本発明の摺動接点材料に於いて、組成比で
Au30〜50重量％、Ag20〜40重量％、Pd20〜40重
量％のAu−Ag−Pdが93〜98.5重量％及び残部が
Mn1〜５重量％、In、Sn、Sb、Ｐ、Ti及びZrの
少なくとも一種を合計で0.5〜２重量％としてい
る理由は、前記合金材料の耐摩耗性を向上すべく
MnとIn、Sn、Sb、Ｐ、Ti、Zrとの金属間化合
物を分散させて硬くする為で、Mnが１重量％あ
るいはIn、Sn、Sb、Ｐ、Ti、Zrの少なくとも一
種が0.5重量％未満ではその効果を発揮できず、
Mnが５重量％あるいはIn、Sn、Sb、Ｐ、Ti、
Zrの少なくとも一種が２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、Ag、Pd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。
次に下記表の左欄に示す成分組成の本発明によ
る摺動接点材料と従来の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Ag−Cd1重量％から成
る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：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 (hereinafter referred to as "sliding contact materials"). Conventionally, various materials have been considered as sliding contact materials, and in particular, Au30 is the material for brush contacts.
~50wt%, Ag20~40wt%, Pd20~40wt%
An alloy material consisting of However, brush contacts made of this alloy material have poor abrasion resistance when sliding with the commutator, and are likely to generate abrasion particles, causing noise. The present invention has been made in order to eliminate such drawbacks, and aims to provide a sliding contact material with improved wear resistance by using the above-mentioned alloy material as a base material and adding a small amount of a specific material thereto. It is something to do. The sliding contact material of the present invention has a composition ratio of Au30 to Au50.
wt%, Ag20~40wt%, Pd20~40wt%Au
-Ag-Pd 93-98.5% by weight and balance Mn1-5
The total amount of at least one of In, Sn, Sb, P, Ti, and Zr is 0.5 to 2% by weight. In the sliding contact material of the present invention, the composition ratio
Au-Ag-Pd is 93-98.5 wt% and the balance is 30-50 wt% Au, 20-40 wt% Ag, 20-40 wt% Pd.
The reason why the total amount of Mn is 1 to 5% by weight and at least one of In, Sn, Sb, P, Ti, and Zr is 0.5 to 2% by weight is to improve the wear resistance of the alloy material.
To make it hard by dispersing intermetallic compounds of Mn and In, Sn, Sb, P, Ti, and Zr, Mn is 1% by weight or at least one of In, Sn, Sb, P, Ti, and Zr is 0.5% by weight. If it is less than %, the effect cannot be achieved,
Mn is 5% by weight or In, Sn, Sb, P, Ti,
If at least one type of Zr exceeds 2% by weight, the amount of oxides generated will increase, contact resistance will increase, and furthermore, it will become unstable. Furthermore, by setting the content of Au, Ag, and Pd 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. be. Next, using the sliding contact material according to the present invention and the conventional sliding contact material having the composition shown in the left column of the table below, brush wire rods each having a wire diameter of 0.7 mm were made, and each brush wire rod was cut into a length of 8 mm. Two parallel wires, one end 10mm wide.
Welded to a base material with a length of 13 mm and a thickness of 0.2 mm, and 2R on the other end.
A brush contact was made by bending the arc-shaped contact part of the brush.
Then, each brush contact was brought into contact with a disc-shaped commutator made of 1% by weight of Ag-Cd, and the commutator was rotated forward and backward to perform a sliding test under the following test conditions, and the amount of wear and contact resistance was measured. The results shown in the right column of the table below were obtained. Test conditions Current: 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１〜21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１〜21の刷子接点の刷子線
材を構成している本発明の摺動接点材料が、Mn
とIn、Sn、Sb、Ｐ、Ti、Zrとの金属間化合物の
分散により硬くなり、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摺動接点材料に
よれば、従来の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、また
接触抵抗が低く安定しノイズの発生が殆んど無い
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 21 had significantly less wear than the conventional brush contacts, and that the contact resistance was low and stable.
This is simply due to the fact that the sliding contact material of the present invention, which constitutes the brush wire of the brush contacts of Examples 1 to 21, is made of Mn.
This is because the dispersion of intermetallic compounds of In, Sn, Sb, P, Ti, and Zr increases hardness and improves wear resistance. As detailed above, the sliding contact material according to the present invention has significantly better wear resistance than conventional sliding contact materials, generates extremely little wear powder, and has low and stable contact resistance, which reduces noise generation. This has the effect that it is possible to obtain a brush contact point with almost no contact.
Claims (1)
％、Pd20〜40重量％のAu−Ag−Pdが93〜98.5重
量％及び残部がMn1〜５重量％、In、Sn、Sb、
Ｐ、Ti及びZrの少なくとも一種を合計で0.5〜２
重量％から成る摺動接点材料。1 composition ratio of Au-Ag-Pd of 30-50% by weight, 20-40% of Ag, 20-40% of Pd by weight, 93-98.5% by weight, and the balance being Mn 1-5% by weight, In, Sn, Sb,
A total of 0.5 to 2 of at least one of P, Ti, and Zr
Sliding contact material consisting of % by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59079733A JPS60224743A (en) | 1984-04-20 | 1984-04-20 | Sliding contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59079733A JPS60224743A (en) | 1984-04-20 | 1984-04-20 | Sliding contact material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60224743A JPS60224743A (en) | 1985-11-09 |
| JPH0361736B2 true JPH0361736B2 (en) | 1991-09-20 |
Family
ID=13698405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59079733A Granted JPS60224743A (en) | 1984-04-20 | 1984-04-20 | Sliding contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60224743A (en) |
-
1984
- 1984-04-20 JP JP59079733A patent/JPS60224743A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60224743A (en) | 1985-11-09 |