JPH0259206B2 - - Google Patents
Info
- Publication number
- JPH0259206B2 JPH0259206B2 JP57223489A JP22348982A JPH0259206B2 JP H0259206 B2 JPH0259206 B2 JP H0259206B2 JP 57223489 A JP57223489 A JP 57223489A JP 22348982 A JP22348982 A JP 22348982A JP H0259206 B2 JPH0259206 B2 JP H0259206B2
- 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 20
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims description 6
- 229910052726 zirconium Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 229910017944 Ag—Cu Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 description 8
- 229910052804 chromium Inorganic materials 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 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、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、
Pt0.1〜１重量％、Pd42〜44％重量％、Ag39〜41
重量％、Cu15.5〜17.5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、この点に着目
されて、Pt、Pd、Ag、Cu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
Pt0.1〜１重量％、Pd42〜44重量％、Ag39〜41重
量％、Cu15.5〜17.5重量％のPt−Pd−Ag−Cuが
93〜99.5重量％及び残部がCr、Mg、Zr及びＰ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Pt0.1〜１重量％、Pd42〜44重量％、Ag39〜41
重量％、Cu15.5〜17.5重量％のPt−Pd−Ag−Cu
が93〜99.5重量％及び残部がCr、Mg、Zr及びＰ
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軟化温度を高
めて耐凝着性を向上させる為で、Cr、Mg、Zr及
びＰのうち少なくとも一種を合計で0.5重量％未
満では軟化温度を高めて凝着を防止する効果を発
揮できず、Cr、Mg、Zr及びＰ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、Pt、Pd、Ag、Cu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Cr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,
Pt0.1~1wt%, Pd42~44%wt%, Ag39~41
Alloy materials consisting of 15.5 to 17.5% by weight of Cu were widely used (New Contact Materials No. 30, edited by Japan Electronic Materials Technology Association, published by Kogyo Nichi-Nichi Shimbun on July 8, 1965). (see page). This alloy material has particularly excellent properties such as mechanical strength, corrosion resistance, and spring properties, and with this in mind, it is made with limited elements and contents such as Pt, Pd, Ag, and Cu. It is. 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 formation 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
Pt-Pd-Ag-Cu with Pt0.1~1wt%, Pd42~44wt%, Ag39~41wt%, Cu15.5~17.5wt%
93 to 99.5% by weight, and the balance is a total of 0.5 to 7% by weight of at least one of Cr, Mg, Zr, and P. In the sliding contact material for brushes of the present invention, the composition ratio is 0.1 to 1% by weight of Pt, 42 to 44% by weight of Pd, and 39 to 41% of Ag.
wt%, Cu15.5-17.5 wt% Pt−Pd−Ag−Cu
is 93-99.5% by weight and the balance is Cr, Mg, Zr and P
The reason why the total amount of at least one of Cr, Mg, Zr, and P is 0.5 to 7% by weight is to increase the softening temperature of the conventional alloy material and improve the adhesion resistance. If the total content of at least one of Cr, Mg, Zr, and P exceeds 7% by weight, the amount of oxides generated increases. , the contact resistance becomes high and it becomes unstable. In addition, by setting the contents of Pt, Pd, Ag, and Cu 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. It is something. Next, a conventional alloy material is used as a base material, and Cr is added thereto to obtain a brush sliding contact material having the composition shown in Example 1 in the table. Brush wires with a wire diameter of 0.7 mm were made using sliding contact materials for commercial use and conventional sliding contact materials for brushes, each cut into 8 mm lengths, 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 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１〜18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１〜18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Cr、Mg、Zr、Ｐによつて防
止され、耐凝着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, the brush contacts of Examples 1 to 18 have significantly less wear compared to the conventional brush contacts, and it can be seen that the contact resistance is 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 18, is prevented from softening during sliding by Cr, Mg, Zr, and P, and is resistant to This is because the adhesion 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 a lower and more stable contact resistance than when using conventional brush contact materials.
Claims (1)
％、Ag39〜41重量％、Cu15.5〜17.5重量％のPt
−Pd−Ag−Cuが93〜99.5重量％及び残部がCr、
Mg、Zr及びＰ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 Pt with composition ratio of 0.1 to 1% by weight, Pd 42 to 44% by weight, Ag 39 to 41% by weight, Cu 15.5 to 17.5% by weight
-Pd-Ag-Cu is 93 to 99.5% by weight and the balance is Cr,
At least one of Mg, Zr and P in total of 0.5 to 7
% by weight of a sliding contact material for a brush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57223489A JPS59113146A (en) | 1982-12-20 | 1982-12-20 | Sliding contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57223489A JPS59113146A (en) | 1982-12-20 | 1982-12-20 | Sliding contact material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59113146A JPS59113146A (en) | 1984-06-29 |
| JPH0259206B2 true JPH0259206B2 (en) | 1990-12-11 |
Family
ID=16798931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57223489A Granted JPS59113146A (en) | 1982-12-20 | 1982-12-20 | Sliding contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59113146A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0547312U (en) * | 1991-11-22 | 1993-06-22 | 三菱自動車エンジニアリング株式会社 | Structure of engine oil drain passage |
-
1982
- 1982-12-20 JP JP57223489A patent/JPS59113146A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0547312U (en) * | 1991-11-22 | 1993-06-22 | 三菱自動車エンジニアリング株式会社 | Structure of engine oil drain passage |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59113146A (en) | 1984-06-29 |