JPH0260731B2 - - Google Patents
Info
- Publication number
- JPH0260731B2 JPH0260731B2 JP57181167A JP18116782A JPH0260731B2 JP H0260731 B2 JPH0260731 B2 JP H0260731B2 JP 57181167 A JP57181167 A JP 57181167A JP 18116782 A JP18116782 A JP 18116782A JP H0260731 B2 JPH0260731 B2 JP H0260731B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- brush
- sliding contact
- 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
- 239000000203 mixture Substances 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 5
- 229910052720 vanadium Inorganic materials 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
- 229910052715 tantalum 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
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 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
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Conductive Materials (AREA)
- Contacts (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
は軟化温度が低く、整流子との摺動時に凝集しや
すいため、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、軟化温度を高め、耐
凝着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−Ag−Cu−Znが95〜99.5重量%
及び残部がW、V及びTaの少なくとも一種を合
計で0.5〜5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−Ag−Cu−Znが95〜
99.5重量%及び残部がW、V及びTaの少なくと
も一種を合計で0.5〜5重量%としている理由は、
前記従来の合金材料の軟化温度を高めて耐凝着性
を向上させる為で、W、V及びTa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、W、V及びTaのうち少なくとも一
種を合計で5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W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 a low softening temperature and tend to aggregate when sliding with the commutator, resulting in poor wear resistance and easy generation of wear particles.
The contact resistance was unstable and caused noise. The present invention has been made to eliminate such drawbacks, and provides a brush that uses the above-mentioned alloy material as a base material and slightly adds a specific material to the brush to increase the softening temperature and improve the adhesion resistance. The present invention aims to provide a sliding contact material for use in the present invention. 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
wt% Au-Pt-Ag-Cu-Zn 95-99.5 wt%
and the remainder consists of a total of 0.5 to 5% by weight of at least one of W, V and Ta. 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,
Zn0.5~1.5wt% Au-Pt-Ag-Cu-Zn 95~
The reason why 99.5% by weight and the balance is 0.5 to 5% by weight in total of at least one of W, V and Ta is as follows.
The purpose is to increase the softening temperature of the conventional alloy material and improve its adhesion resistance.If the total amount of at least one of W, V, and Ta is less than 0.5% by weight, the effect cannot be exhibited; If the total amount of at least one of these exceeds 5% by weight, the amount of oxides generated will increase, contact resistance will increase, and furthermore, it will become unstable. Also, Au, Pt, Pd, Ag, Cu,
By setting the Zn 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 W is 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. A brush contact was made by welding it to a base material of 13 mm and 0.2 mm thickness, and curving a 2R arc-shaped contact part on 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 rotations/divided speed: 130-120m/min Contact force: 100g Test time: 7 hours
【表】
上記の表で明らかなように実施例1〜15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、摺動時の軟化をW、V、Taによつて防止さ
れ、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 that 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, is prevented from softening during sliding by W, V, and Ta, and has excellent wear resistance. This is because it improves. 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95〜99.5重量%及び残部がW、V及びTa
の少なくとも一種を合計で0.5〜5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%
-Zn is 95-99.5% by weight and the balance is W, V and Ta
A sliding contact material for a brush, characterized in that the total amount of at least one of the following is 0.5 to 5% by weight.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57181167A JPS5970739A (en) | 1982-10-15 | 1982-10-15 | Sliding contact material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57181167A JPS5970739A (en) | 1982-10-15 | 1982-10-15 | Sliding contact material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5970739A JPS5970739A (en) | 1984-04-21 |
JPH0260731B2 true JPH0260731B2 (en) | 1990-12-18 |
Family
ID=16096053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57181167A Granted JPS5970739A (en) | 1982-10-15 | 1982-10-15 | Sliding contact material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5970739A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0478343U (en) * | 1990-11-22 | 1992-07-08 |
-
1982
- 1982-10-15 JP JP57181167A patent/JPS5970739A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0478343U (en) * | 1990-11-22 | 1992-07-08 |
Also Published As
Publication number | Publication date |
---|---|
JPS5970739A (en) | 1984-04-21 |