JP3195995B2 - Commutator material for small DC motor and method of manufacturing the same - Google Patents

Commutator material for small DC motor and method of manufacturing the same

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Publication number
JP3195995B2
JP3195995B2 JP34310293A JP34310293A JP3195995B2 JP 3195995 B2 JP3195995 B2 JP 3195995B2 JP 34310293 A JP34310293 A JP 34310293A JP 34310293 A JP34310293 A JP 34310293A JP 3195995 B2 JP3195995 B2 JP 3195995B2
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JP
Japan
Prior art keywords
small
commutator
motor
wear
agα
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
Application number
JP34310293A
Other languages
Japanese (ja)
Other versions
JPH07166268A (en
Inventor
功 渋谷
啓次 中村
敬雄 麻田
雄二 柳下
俊哉 山本
哲也 中村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tanaka Kikinzoku Kogyo KK
Mabuchi Motor Co Ltd
Original Assignee
Tanaka Kikinzoku Kogyo KK
Mabuchi Motor Co Ltd
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Publication date
Application filed by Tanaka Kikinzoku Kogyo KK, Mabuchi Motor Co Ltd filed Critical Tanaka Kikinzoku Kogyo KK
Priority to JP34310293A priority Critical patent/JP3195995B2/en
Publication of JPH07166268A publication Critical patent/JPH07166268A/en
Application granted granted Critical
Publication of JP3195995B2 publication Critical patent/JP3195995B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、刷子との回転摺動
動作により電気的切替えを行う直流小型モータ用整流子
材料であって、特に高温で使用される直流小型モータ
好適な整流子材料及びその製造方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to rotary sliding with a brush.
Commutator for small DC motor that performs electrical switching by operation
Material , especially for small DC motors used at high temperatures
And a method for manufacturing the same .

【0002】[0002]

【従来の技術】近年、電子工業等の分野において、摺動
接触を伴う機器類が増加してきており、新しい摺動接点
材料の開発や、摩耗に関する研究が盛んに行われてきて
いる。摺動接点材料については、この摩耗と接触抵抗と
が問題となるが、この摩耗現象は複雑で学問的に未解明
な点も多い。
2. Description of the Related Art In recent years, in the field of the electronics industry and the like, devices with sliding contact have been increasing, and development of new sliding contact materials and research on wear have been actively conducted. With respect to the sliding contact material, the wear and the contact resistance pose problems. However, the wear phenomenon is complicated, and there are many points that have not been elucidated academically.

【0003】通常、接触材料の金属表面はかなり平滑に
仕上がったつもりでも、ミクロ的な観察によれば完全な
平面ではなく微妙な凹凸が存在している。二つの金属の
接触状態をみると、みかけは広い面積で接触しているよ
うに見えるが、実際には幾つかの凹凸が存在し孤立した
突起でのみ接触していることになる。
[0003] Usually, even though the metal surface of the contact material is intended to be finished fairly smoothly, microscopic observations show that not a perfect plane but subtle irregularities exist. Looking at the state of contact between the two metals, it appears that they are in contact over a wide area, but in reality there are some irregularities and they are in contact only with isolated projections.

【0004】摩擦に対する摩耗は、基本的には接触する
力の大きさに比例し、硬さに反比例する。その他、温
度、湿度、腐蝕性成分、有機質蒸気、埃などは摩耗や電
気的特性(接触抵抗)に変化をもたらす要因となる。
[0004] Wear due to friction is basically proportional to the magnitude of the contact force and inversely proportional to the hardness. In addition, temperature, humidity, corrosive components, organic vapor, dust and the like are factors that cause abrasion and changes in electrical characteristics (contact resistance).

【0005】摺動接点材料における摩耗の仕方は、大別
して凝着摩耗と、引っかき摩耗とがある。凝着摩耗と
は、真の接触部即ち突起部において金属同士の溶着が起
こり、軟らかい方の金属が引き裂かれて硬い方の金属に
移行することによって起こる摩耗である。
[0005] The wear of the sliding contact material is roughly classified into adhesive wear and scratch wear. Adhesive wear is wear caused by welding of metals at a true contact portion, that is, a protrusion, and the softer metal is torn and transferred to a harder metal.

【0006】引っかき摩耗とは、硬さの大きく異なる材
料が擦り合わされる場合、あるいは軟らかい金属同士で
も一方に硬い粒子などを含んでいるような場合に惹起さ
れる摩耗である。
[0006] Scratch wear is wear caused when materials having greatly different hardnesses are rubbed with each other, or when one of soft metals contains hard particles or the like.

【0007】摺動接点用素材は、アースリング、ロータ
リースイッチその他の機器に広く利用されるものである
が、本発明では、特に直流小型モータ、更に直流小型モ
ータに使用する整流子、それらに使うクラッド複合材、
そして摺動接点材料を含む。
The material for the sliding contact is widely used for earth rings, rotary switches, and other devices. In the present invention, in particular, a small DC motor, a commutator used for a small DC motor, and a commutator used for them Clad composite,
And it includes a sliding contact material.

【0008】従来より摺動接点用素材の一つとしてAg
Cu合金又は、AgCu合金に種々の元素を添加した材
料(例えば特開昭58−104139号)等が用いられ
てきたが、AgCu合金はその金属組織が十分にコント
ロールされておらず、特にCuがAgα相中に十分固溶
しておらず、固溶体硬化や添加元素の効果が十分に発揮
されていなかった。その為製造時の金属組織のばらつき
によって摺動時に軟化し、早く摩耗し、耐摩耗性が不十
分であった。またこの材料で整流子を製作した直流小型
モータの場合には、刷子接点との摺動により摩耗が生
じ、摩耗粉がノイズの原因となっていた。
Conventionally, Ag has been used as one of the materials for sliding contacts.
A Cu alloy or a material obtained by adding various elements to an AgCu alloy (for example, JP-A-58-104139) has been used. However, the metal structure of the AgCu alloy is not sufficiently controlled. The solid solution was not sufficiently dissolved in the Agα phase, and the effects of the solid solution hardening and the added elements were not sufficiently exhibited. Therefore, it softened during sliding due to the variation of the metal structure at the time of manufacture, and was quickly worn, and the wear resistance was insufficient. In the case of a small DC motor using a commutator made of this material, abrasion occurs due to sliding with the brush contacts, and the abrasion powder causes noise.

【0009】これを、解決するための手段として特願平
5−89128号記載のように8wt%以下のCuを含
有したAgCu合金または、AgCu合金に種々の元素
を添加した材料において、溶体化処理を施すことが考え
られる。しかし、高温で使用される(例えば80℃)直
流小型モータの整流子材料としては、この様な材料であ
っても、その厳しい使用条件のためになお摩耗する問題
が生じていた。
As a means for solving this problem, as described in Japanese Patent Application No. 5-89128, an AgCu alloy containing 8 wt% or less of Cu or a material obtained by adding various elements to an AgCu alloy is subjected to a solution treatment. Can be considered. However, as a commutator material for a DC small motor used at a high temperature (for example, 80 ° C.), even such a material has a problem that it is still worn due to its severe use conditions.

【0010】また、従来からCdが含有した摺動接点用
素材も知られていて、5〜7wt%のCu、1〜3wt
%のCd、残部がAgからなるAg−Cu−Cd合金は
現在も広く使われている。しかし、これらのAg−Cu
合金、Ag−Cu−Cd合金素材は直流小型モータの整
流子として使用した場合、特に高温(80℃)におい
て、歴然たる耐久寿命の劣化を示し、これら材料の改善
が求められている。
[0010] Also, a material for a sliding contact containing Cd has been conventionally known.
Ag-Cu-Cd alloys containing% Cd and the balance of Ag are still widely used today. However, these Ag-Cu
When an alloy or an Ag-Cu-Cd alloy material is used as a commutator of a small DC motor, particularly at a high temperature (80 ° C), the durability life is remarkably deteriorated, and improvement of these materials is required.

【0011】[0011]

【発明が解決しようとする課題】本発明は、直流小型モ
ータの整流子として使用した時に、特に高温における耐
摩耗性を向上させ、摩耗粉の発生を軽減し、ノイズの発
生を抑え、結果として直流小型モータの耐久寿命を向上
させることが可能な整流子材料及びその製造方法を提供
するものである。
The present invention, when used as a commutator for a small DC motor, improves the wear resistance, especially at high temperatures, reduces the generation of wear powder, and suppresses the generation of noise. An object of the present invention is to provide a commutator material capable of improving the durability life of a small DC motor and a method for manufacturing the same.

【0012】[0012]

【課題を解決するための手段】[Means for Solving the Problems]

【請求項1】 直流小型モータ用整流子材料において
Cuを8wt%より多く20wt%より少なく、Mgを
0.1〜5wt%、残部AgからなるAgCuMg合金
であって、3〜8.8wt%のCu及び0.1〜5wt
%のMgがAgα相中に固溶し、かつ固溶しなかった残
りのCuは平均粒子径0.1〜5μmのCu粒子として
Agα相中に分散していることを特徴とする直流小型モ
ータ用整流子材料。2 前項1記載の直流小型モータ用
整流子材料において、Ag−Cu共晶点直下の700〜
770℃で熱処理後、急冷することを特徴とする直流小
型モータ用整流子材料の製造方法。3 前項1記載の
流小型モータ用整流子材料において、前項2の処理を施
し、その後10%以上の加工率で塑性加工を行うことを
特徴とする直流小型モータ用整流子材料の製造方法。
1. A commutator material for a small DC motor ,
More than 8 wt% Cu and less than 20 wt% , Mg
AgCuMg alloy consisting of 0.1 to 5 wt% with the balance being Ag
3 to 8.8 wt% Cu and 0.1 to 5 wt%
% Of Mg is dissolved in Agα phase, and direct current compact motor remaining Cu which has not dissolved, characterized in that it is dispersed Agα phase as Cu particles having an average particle diameter of 0.1~5μm
Commutator material for motors . 2 For small DC motors as described in 1 above
In the commutator material , 700 to just below the Ag-Cu eutectic point
DC cooling characterized by rapid cooling after heat treatment at 770 ° C
Manufacturing method of commutator material for die motor . 3. The straight line described in the preceding paragraph 1
A method for manufacturing a commutator material for a small DC motor , which comprises subjecting the commutator material for a small-sized motor to the treatment described in the above item 2, and thereafter performing plastic working at a working rate of 10% or more.

【0013】[0013]

【発明の実施の形態】通常、高温環境下においては相対
湿度が非常に低くなり、例えば温度80℃では相対湿度
は約5%以下になる。電気的摺動接点の摩耗現象につい
て言えば、常温における空気中には湿気があり、この適
度の水分は接点に潤滑作用を与えるが、これが少なくな
ると摩耗が早くなることが経験的に知られている。従っ
て、室温ではあまり摩耗しない材料であっても高温にお
いては摩耗が増すという現象が起こる。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Normally, the relative humidity is very low in a high-temperature environment. For example, at a temperature of 80.degree. C., the relative humidity is about 5% or less. Speaking of the wear phenomenon of electrical sliding contacts, there is moisture in the air at room temperature, and this moderate amount of moisture gives lubrication to the contacts, but it has been empirically known that the less this is, the faster the wear will be. I have. Therefore, even if the material does not wear much at room temperature, a phenomenon occurs that the wear increases at high temperature.

【0014】上記のことを勘案して成された本発明の
流小型モータ用整流子材料は、Cuを8wt%より多く
20wt%より少なく、Mgを0.1〜5wt%、残部
AgからなるAgCuMg合金であるから、Agα相中
に存在するCu粒子は、摺動中に酸化して酸化物粒子と
なり、これが潤滑剤として働くので摩耗を軽減する作用
をなす。しかしながら、Cuの含有量が8wt%以下の
AgCu合金にMgを添加した材料にあっては、含有し
ているCuのうち殆どはAgα相中に固溶してしまって
Cu粒子が減少するため、高温中で摺動する場合に潤滑
剤としての機能を失う結果につながる。
[0014] straight of the present invention has been made in consideration of the foregoing
The commutator material for a small-sized motor has more than 8 wt% of Cu and less than 20 wt%, 0.1 to 5 wt% of Mg, and the balance.
Since it is an AgCuMg alloy made of Ag, the Cu particles existing in the Agα phase are oxidized during sliding to become oxide particles, which act as a lubricant, and thus have an effect of reducing wear. However, in a material obtained by adding Mg to an AgCu alloy having a Cu content of 8 wt% or less, most of the contained Cu is dissolved in the Agα phase and the number of Cu particles is reduced. When sliding in a high temperature, the function as a lubricant is lost.

【0015】従って、Cuを8wt%より多く20wt
%より少なく含有することにより、更に充分な潤滑剤と
して働く要因となる。特にAgα相中に3〜8.8wt
%のCuが固溶し、かつ平均粒子径0.1〜5μmのC
u粒子がマトリックス中に微細に分散していた場合有効
に働く。ここで、Cu含有量を8wt%より多くした理
由は、8wt%以下だと、高温環境下における湿度が室
温下の湿度に比して大幅に低くなるため、室温下ではさ
ほど摩耗しなくとも、高温環境下では潤滑作用不足に因
る早期摩耗を招くので、それを防止するためである。但
し、Cu含有量は経時変化による接触抵抗の上昇防止を
考慮すると20wt%より少ないのが好ましい。
Therefore, when the content of Cu is more than 8 wt% and 20 wt%
When the content is less than 10%, it becomes a factor that works as a more sufficient lubricant. In particular, 3 to 8.8 wt% in the Agα phase
% Of solid solution of Cu and C having an average particle size of 0.1 to 5 μm
It works effectively when u particles are finely dispersed in the matrix. Here, the reason why the Cu content is set to more than 8 wt% is that if the content is 8 wt% or less, the humidity in a high-temperature environment is significantly lower than the humidity in a room temperature. This is to prevent early wear due to insufficient lubrication in a high-temperature environment. However, the Cu content is preferably less than 20 wt% in consideration of prevention of an increase in contact resistance due to aging.

【0016】このCuを8wt%より多く20wt%よ
り少なく含有するAgCu合金、さらに、Mgを含有さ
せた理由は、この元素は非常に酸化し易いため、この酸
化物粒子も潤滑剤として作用し、前記、Agα相中に分
散しているCu粒子の酸化物粒子による潤滑効果と相俟
って、摩耗が軽減されるからである。ここで、含有量を
0.1〜5wt%としたのは、0.1wt%未満では添
加による摩耗軽減効果が発揮できず、5wt%を超える
と接触抵抗が高くなりすぎるという問題が生じてしまう
ためである。なお、Cuを9wt%より多く11wt%
より少なく含有するAgCu合金において、6〜8.8
wt%のCu及び0.1〜0.5wt%のMgがAgα
相中に固溶し、かつ固溶しなかった残りのCuは、平均
粒子径0.1〜5μmのCu粒子としてAgα相中に分
散している状態が最も効果的である。
An AgCu alloy containing more than 8 wt% and less than 20 wt% of Cu, and the reason for containing Mg are that this element is very easily oxidized, so that the oxide particles also act as a lubricant, This is because abrasion is reduced in combination with the lubrication effect of the oxide particles of the Cu particles dispersed in the Agα phase. Here, the reason why the content is set to 0.1 to 5 wt% is that if it is less than 0.1 wt%, the effect of reducing wear cannot be exhibited by addition, and if it exceeds 5 wt%, there arises a problem that the contact resistance becomes too high. That's why. In addition, Cu is more than 9 wt% and 11 wt%.
In an AgCu alloy containing less, 6 to 8.8
wt% Cu and 0.1-0.5 wt% Mg are Agα
The most effective state is a state in which the remaining Cu that has been dissolved in the phase and has not been dissolved is dispersed in the Agα phase as Cu particles having an average particle diameter of 0.1 to 5 μm.

【0017】さらに、本発明の整流子材料の製造方法
は、上記組成の材料をAg−Cu共晶点直下の700〜
770℃の温度による熱処理後、急冷してCuをより多
く固溶させる方法を採る。そうすることにより、Agα
相中に存在するCu粒子の酸化物が、摺動時の潤滑作用
を充分に発揮させ、かつ、高温環境下に起き易い摺動時
の摩耗を軽減でき、結果として耐摩耗性を向上させるこ
とができる。
Further, in the method for producing a commutator material according to the present invention, the material having the above composition is provided at a temperature of 700 to just below the Ag-Cu eutectic point.
After the heat treatment at a temperature of 770 ° C., a method of rapidly cooling to make a solid solution of Cu more is adopted. By doing so, Agα
The oxide of Cu particles present in the phase sufficiently exerts a lubricating effect at the time of sliding, and can reduce wear during sliding which is likely to occur in a high temperature environment, and as a result, improves wear resistance. Can be.

【0018】また、平均粒子径は0.1〜5μmのCu
粒子とすることにより高温環境下における摩耗軽減に対
して効果的に作用するものである。Ag−Cu共晶点直
下の熱処理は、好ましくは700〜770℃で保持した
後水冷することにより行う。上記熱処理後、塑性加工を
行うのは、上記熱処理を行ったままではAgα相は再結
晶して軟化してしまい、このままプレス加工すると表面
に凹凸が発生する弊害をもたらすからである。本発明の
整流子材料の製造方法のように、熱処理後少なくとも1
0%以上の加工率で塑性加工を行うことにより、加工硬
化させプレス加工で発生する表面の凹凸を抑制し、さら
に耐摩耗性を向上させることができる。
The average particle size of Cu is 0.1 to 5 μm.
The particles effectively act to reduce abrasion in a high-temperature environment. The heat treatment immediately below the Ag-Cu eutectic point is preferably performed by maintaining the temperature at 700 to 770 ° C and then cooling with water. The plastic processing is performed after the heat treatment because the Agα phase is recrystallized and softened while the heat treatment is performed, and the press working in this state causes an adverse effect of generating irregularities on the surface. The present invention
As in the manufacturing method of the commutator material, at least after heat treatment 1
By performing plastic working at a working ratio of 0% or more, work hardening can be performed to suppress surface irregularities generated by press working, and further improve wear resistance.

【0019】[0019]

〔試験条件〕〔Test condition〕

電流 : DC170mA 摺動速度 : 20mm/sec 荷重 : 25g テスト時間: 333分 温度 : 80℃ 湿度 : 5%RH Current: 170 mA DC Sliding speed: 20 mm / sec Load: 25 g Test time: 333 minutes Temperature: 80 ° C. Humidity: 5% RH

【0020】[0020]

【表1】 [Table 1]

【0021】このようにして作った材料の、Agα相中
のCuの固溶量を確認するために、Agα相の格子定数
をX線回折法により調べた。その結果、実施例1、2、
3は4.037、4.047、4.035、従来例1、
2、3はそれぞれ4.067、4.065、4.067
Åであった。Vegard則により実施例1、2、3、
及び従来例1、2、3における固溶量は、それぞれ実施
例では6.6wt%、5.2wt%、6.9wt%、従
来例では2.5wt%、2.8wt%、2.5wt%で
あった。
In order to confirm the solid solution amount of Cu in the Agα phase of the material thus produced, the lattice constant of the Agα phase was examined by an X-ray diffraction method. As a result, Examples 1, 2,
3 is 4.037, 4.047, 4.035, Conventional Example 1,
2, 3 are 4.067, 4.065, 4.067, respectively.
Was Å. According to Vegard's rule, Examples 1, 2, 3,
The amounts of solid solution in Conventional Examples 1, 2, and 3 are 6.6 wt%, 5.2 wt%, and 6.9 wt% in Examples, respectively, and 2.5 wt%, 2.8 wt%, and 2.5 wt% in Conventional Examples. Met.

【0022】上記表1で明らかなように実施例1〜3の
整流子材料は、従来例の摺動接点用素材に比べ摩耗量が
著しく少なく、接触抵抗が著しく低いことが判る。また
比較例1、2の摺動接点用素材は摩耗量は少ないが接触
抵抗が高く、それらの事から実施例1〜3の整流子材料
に比べて比較例のものは品質的にかなり劣るものであ
る。
As apparent from Table 1 above, Examples 1 to 3
It can be seen that the commutator material has a remarkably small amount of wear and a remarkably low contact resistance as compared with the conventional sliding contact material. In addition, the materials for the sliding contacts of Comparative Examples 1 and 2 have a small amount of wear but a high contact resistance. Therefore, the materials of Comparative Examples are of higher quality than the commutator materials of Examples 1 to 3. It is considerably inferior to.

【0023】[0023]

【発明の効果】以上の通り本発明の直流小型モータ用整
流子材料は、Cuを8重量%より多く含有するAgCu
合金、更にMgを含有する材料であるから、Agα相に
Cuが3〜8.8wt%固溶し、かつCu粒子がAgα
相中に分散しているので、このCu粒子または、更にM
g粒子が摺動中に酸化して酸化物粒子となり、これが潤
滑剤として働くので摩耗が軽減される。
As described above, the alignment for a small DC motor according to the present invention is as described above.
The sponge material is AgCu containing more than 8% by weight of Cu.
Since the alloy is an alloy and further contains Mg, Cu is solid-dissolved in the Agα phase at 3 to 8.8 wt%, and the Cu particles are Agα.
The Cu particles or M
The g particles are oxidized during sliding to become oxide particles, which act as a lubricant, thereby reducing abrasion.

【0024】また、製造方法として、Ag−Cu共晶点
直下の700〜770℃で熱処理後、急冷することによ
りCuをより多く固溶させることができ、それ故、Ag
α相中での摺動中の酸化物粒子の潤滑効果を十分に発揮
させることが可能となる。さらに、上記処理を施した後
に、10%以上の加工率で塑性加工を行ったから、加工
硬化により耐摩耗性の向上や、表面の凹凸を抑制するも
のとなる。したがって、この素材で製作した整流子材料
は刷子接点との摺動時摩耗が軽減され、摩耗からくるノ
イズを抑制できるという特別顕著な作用効果を奏するも
のである。
Further, as a manufacturing method, after heat treatment at 700 to 770 ° C. just below the Ag-Cu eutectic point, rapid cooling allows more Cu to form a solid solution.
The lubricating effect of the oxide particles during sliding in the α phase can be sufficiently exhibited. Furthermore, after the above treatment, plastic working is performed at a working rate of 10% or more, so that work hardening improves wear resistance and suppresses surface irregularities. Therefore, the commutator material made of this material has a particularly remarkable function and effect that the abrasion at the time of sliding with the brush contact is reduced and the noise caused by the abrasion can be suppressed.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 麻田 敬雄 神奈川県平塚市新町2番73号 田中貴金 属工業株式会社技術開発センター内 (72)発明者 柳下 雄二 神奈川県平塚市新町2番73号 田中貴金 属工業株式会社技術開発センター内 (72)発明者 山本 俊哉 神奈川県平塚市新町2番73号 田中貴金 属工業株式会社技術開発センター内 (72)発明者 中村 哲也 神奈川県平塚市新町2番73号 田中貴金 属工業株式会社技術開発センター内 (56)参考文献 特開 昭50−104720(JP,A) 特開 昭51−138859(JP,A) 特開 昭58−104139(JP,A) 特開 昭56−55539(JP,A) (58)調査した分野(Int.Cl.7,DB名) C22C 5/06 C22F 1/14 H01H 1/02 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takao Asada 2-73 Shinmachi, Hiratsuka-shi, Kanagawa Prefecture Inside the Technology Development Center, Kikin Tanaka Industries Co., Ltd. (72) Inventor Yuji Yanagishita 2-73, Shinmachi, Hiratsuka-shi, Kanagawa Prefecture Inside Tanaka Kikinzoku Kogyo Kogyo Co., Ltd. (72) Inventor Toshiya Yamamoto 2-73 Shinmachi, Hiratsuka-shi, Kanagawa Prefecture Inside Tanaka Kikinzoku Kogyo Kogyo Co., Ltd. (72) Inventor Tetsuya Nakamura Shinmachi, Hiratsuka-shi, Kanagawa No. 2, No. 73 Inside Tanaka Kikinzoku Kogyo Co., Ltd. Technology Development Center (56) References JP-A-50-104720 (JP, A) JP-A-51-138859 (JP, A) JP-A-58-104139 (JP) , A) JP-A-56-55539 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) C22C 5/06 C22F 1/14 H01H 1/02

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 直流小型モータ用整流子材料において
Cuを8wt%より多く20wt%より少なく、Mgを
0.1〜5wt%、残部AgからなるAgCuMg合金
であって、3〜8.8wt%のCu及び0.1〜5wt
%のMgがAgα相中に固溶し、かつ固溶しなかった残
りのCuは平均粒子径0.1〜5μmのCu粒子として
Agα相中に分散していることを特徴とする直流小型モ
ータ用整流子材料
1. A commutator material for a small DC motor ,
More than 8 wt% Cu and less than 20 wt% , Mg
AgCuMg alloy consisting of 0.1 to 5 wt% with the balance being Ag
3 to 8.8 wt% Cu and 0.1 to 5 wt%
% Of Mg is dissolved in Agα phase, and direct current compact motor remaining Cu which has not dissolved, characterized in that it is dispersed Agα phase as Cu particles having an average particle diameter of 0.1~5μm
Commutator material for motors .
【請求項2】 請求項1記載の直流小型モータ用整流子
材料において、Ag−Cu共晶点直下の700〜770
℃で熱処理後、急冷することを特徴とする直流小型モー
タ用整流子材料の製造方法。
2. The commutator for a small DC motor according to claim 1.
In the material , 700 to 770 immediately below the Ag-Cu eutectic point
A DC small mode characterized by rapid cooling after heat treatment at
Method of manufacturing commutator material for transformers .
【請求項3】 請求項1記載の直流小型モータ用整流子
材料において、請求項2の処理を施し、その後10%以
上の加工率で塑性加工を行うことを特徴とする直流小型
モータ用整流子材料の製造方法。
3. The commutator for a small DC motor according to claim 1.
DC small-sized material characterized by subjecting the material to the treatment according to claim 2 and thereafter performing plastic working at a working rate of 10% or more.
Manufacturing method of commutator material for motor .
JP34310293A 1993-12-15 1993-12-15 Commutator material for small DC motor and method of manufacturing the same Expired - Lifetime JP3195995B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP34310293A JP3195995B2 (en) 1993-12-15 1993-12-15 Commutator material for small DC motor and method of manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34310293A JP3195995B2 (en) 1993-12-15 1993-12-15 Commutator material for small DC motor and method of manufacturing the same

Publications (2)

Publication Number Publication Date
JPH07166268A JPH07166268A (en) 1995-06-27
JP3195995B2 true JP3195995B2 (en) 2001-08-06

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ID=18358962

Family Applications (1)

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Country Status (1)

Country Link
JP (1) JP3195995B2 (en)

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* Cited by examiner, † Cited by third party
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JP4111906B2 (en) 2003-11-26 2008-07-02 マブチモーター株式会社 Sliding contact material, clad composite material and DC small motor using the same
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Publication number Priority date Publication date Assignee Title
CN109075479A (en) * 2016-04-20 2018-12-21 株式会社自动网络技术研究所 Connection terminal and connection terminal pair

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