JPH0247533B2 - - Google Patents
Info
- Publication number
- JPH0247533B2 JPH0247533B2 JP58023915A JP2391583A JPH0247533B2 JP H0247533 B2 JPH0247533 B2 JP H0247533B2 JP 58023915 A JP58023915 A JP 58023915A JP 2391583 A JP2391583 A JP 2391583A JP H0247533 B2 JPH0247533 B2 JP H0247533B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- sliding contact
- brush
- contact
- contact material
- 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
- 239000000956 alloy Substances 0.000 claims description 10
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 229910052733 gallium Inorganic materials 0.000 claims description 6
- 229910052732 germanium Inorganic materials 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/021—Composite material
- H01H1/023—Composite material having a noble metal as the basic material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Contacts (AREA)
- Conductive Materials (AREA)
Description
本発明は、直流小型モータの刷子用摺動接点材
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用いら
れ、とりわけ刷子接点用の材料としては、Au69
〜71重量％、Pt4〜６重量％、Ag9〜１重量％、
Cu13〜15重量％、Ni0.5〜1.5重量％より成る合金
材料が広く用いられていた。
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もの
であり、前記合金材料を基材としてこれに特定の
元素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、Au、Pt、Ag、Cu
及びNiより成る基合金に他の元素を添加した摺
動接点材料において、Au69〜71重量％、Pt4〜６
重量％、Ag9〜11重量％、Cu13〜15重量％及び
Ni0.5〜1.5重量％より成る基合金にSnを１〜５重
量％と、Si、Bi、Ge及びGaの少なくとも一種を
合計で0.5〜３重量％添加して成るものである。
本発明のAu、Pt、Ag、Cu及びNiより成る基
合金に他の元素を添加した摺動接点材料におい
て、Au69〜71重量％、Pt4〜６重量％、Ag9〜11
重量％、Cu13〜15重量％及びNi0.5〜1.5重量％よ
り成る基合金にSnを１〜５重量％と、Si、Bi、
Ge及びGaの少なくとも一種を合計で0.5〜３重量
％添加している理由は、前記合金材料の耐摩耗性
を向上すべくSnとSi，Bi，Ge，Gaの少なくとも
一種を添加することによつて硬くする為で、Sn
が１重量％あるいはSi，Bi，Ge，Gaの少なくと
も一種が0.5重量％未満ではその効果を十分発揮
できず、Snが５重量％あるいはSi，Bi，Ge，Ga
の少なくとも一種が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。
次に下記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８
mmに切断し、２本並列させて一端を幅10mm、長さ
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 an improvement in a sliding contact material for a brush of a small DC motor (hereinafter referred to as "sliding contact material"). Conventionally, various materials have been used as sliding contact materials, and in particular, Au69 is the material for brush contacts.
~71% by weight, Pt4~6% by weight, Ag9~1% by weight,
An alloy material consisting of 13-15% by weight of Cu and 0.5-1.5% by weight of Ni was widely used. 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 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 element to it. It is something to do. The sliding contact material of the present invention includes Au, Pt, Ag, Cu
In the sliding contact material made by adding other elements to the base alloy consisting of
wt%, Ag9~11wt%, Cu13~15wt% and
It is made by adding 1 to 5 weight % of Sn and a total of 0.5 to 3 weight % of at least one of Si, Bi, Ge, and Ga to a base alloy consisting of 0.5 to 1.5 weight % of Ni. In the sliding contact material of the present invention in which other elements are added to the base alloy consisting of Au, Pt, Ag, Cu and Ni, Au69-71% by weight, Pt4-6% by weight, Ag9-11
% by weight, 1-5% by weight of Sn in a base alloy consisting of 13-15% by weight of Cu and 0.5-1.5% by weight of Ni, Si, Bi,
The reason why at least one of Ge and Ga is added in a total of 0.5 to 3% by weight is that Sn and at least one of Si, Bi, Ge, and Ga are added in order to improve the wear resistance of the alloy material. Sn
If Sn is less than 1% by weight or at least one of Si, Bi, Ge, Ga is less than 0.5% by weight, the effect cannot be fully exhibited;
If 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. Next, brush wire rods each having a wire diameter of 0.7 mm were made using the sliding contact material according to the present invention and the conventional sliding contact material having the component compositions shown in the left column below.
A brush contact was made by cutting two pieces into 2 mm pieces, placing them in parallel, welding one end to a base material with a width of 10 mm, length of 13 mm, and thickness of 0.2 mm, and bending 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 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１〜４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、Sn
とSi，Bi，Ge，Gaの少なくとも一種の添加によ
つて硬くなり、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、ノイ
ズの発生が殆んど無く、また従来の摺動接点材料
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 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 constituting the brush wire of the brush contacts of Examples 1 to 4 is Sn
This is because the addition of at least one of Si, Bi, Ge, and Ga 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, generates almost no noise, and This has the advantage that it is possible to obtain a brush contact having a lower and more stable contact resistance than with conventional sliding contact materials.
Claims (1)
他の元素を添加した直流小型モータの刷子用摺動
接点材料において、Au69〜71重量％、Pt4〜６重
量％、Ag9〜11重量％、Cu13〜15重量％及び
Ni0.5〜1.5重量％より成る基合金にSnを１〜５重
量％と、Si、Bi、Ge及びGaの少なくとも一種を
合計で0.5〜３重量％添加して成ることを特徴と
する直流小型モータの刷子用摺動接点材料。1 In the sliding contact material for the brush of a small DC motor, which is made by adding other elements to the base alloy consisting of Au, Pt, Ag, Cu and Ni, Au69-71% by weight, Pt4-6% by weight, Ag9-11% by weight , Cu13~15% by weight and
A small direct current device characterized by adding 1 to 5% by weight of Sn and a total of 0.5 to 3% by weight of at least one of Si, Bi, Ge, and Ga to a base alloy consisting of 0.5 to 1.5% by weight of Ni. Sliding contact material for motor brushes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58023915A JPS59150032A (en) | 1983-02-16 | 1983-02-16 | Sliding contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58023915A JPS59150032A (en) | 1983-02-16 | 1983-02-16 | Sliding contact material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59150032A JPS59150032A (en) | 1984-08-28 |
| JPH0247533B2 true JPH0247533B2 (en) | 1990-10-22 |
Family
ID=12123783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58023915A Granted JPS59150032A (en) | 1983-02-16 | 1983-02-16 | Sliding contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59150032A (en) |
-
1983
- 1983-02-16 JP JP58023915A patent/JPS59150032A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59150032A (en) | 1984-08-28 |