JPS61130443A - Sliding contact point material - Google Patents

Sliding contact point material

Info

Publication number
JPS61130443A
JPS61130443A JP25244684A JP25244684A JPS61130443A JP S61130443 A JPS61130443 A JP S61130443A JP 25244684 A JP25244684 A JP 25244684A JP 25244684 A JP25244684 A JP 25244684A JP S61130443 A JPS61130443 A JP S61130443A
Authority
JP
Japan
Prior art keywords
sliding contact
contact
contact point
wear resistance
weight
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.)
Pending
Application number
JP25244684A
Other languages
Japanese (ja)
Inventor
Susumu Fujishima
藤嶋 進
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
Original Assignee
Tanaka Kikinzoku Kogyo KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tanaka Kikinzoku Kogyo KK filed Critical Tanaka Kikinzoku Kogyo KK
Priority to JP25244684A priority Critical patent/JPS61130443A/en
Publication of JPS61130443A publication Critical patent/JPS61130443A/en
Pending legal-status Critical Current

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  • Conductive Materials (AREA)

Abstract

PURPOSE:To control the adhesive property and to improve wear resistance by adding prescribed percentages of C, Nb, In, Ba and Fe group element to Ag. CONSTITUTION:A sliding contact point material is obtd. by adding 0.1-5wt% C and 0.5-10wt% one or more among Nb, In and Ba to Ag. An Fe group element may be substituted for part (0.01-0.5wt%) of said added elements. The adhesion of the contact material during sliding action is suppressed, and the wear resistance is improved.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、すり接点材料の改良に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to improvements in sliding contact materials.

(従来技術と問題点) 従来よりすり接点材料の一つとしてAg−Cd合金が用
いられてきたが、Ag−Cd合金はすり動作時に凝着し
耐摩耗性が十分でなく、このAg−Cd合金で小型モー
タの整流子の外周の接点片を製作して使用した場合には
刷子接点とのすり動作により摩耗粉が生じ、ノイズ発止
の原因となっていた。
(Prior art and problems) Ag-Cd alloy has conventionally been used as one of the sliding contact materials, but Ag-Cd alloy adheres during sliding operation and does not have sufficient wear resistance. When a contact piece for the outer periphery of a commutator of a small motor is made of alloy and used, abrasion powder is generated due to the sliding action with the brush contact, causing noise.

(発明の目的) 本発明は、斯かる欠点を解消すべくなされたものであり
、Ag−Cd合金の凝着性を抑え耐摩耗性を向上させる
と共に接触抵抗を低く安定させたすり接点材料を提供せ
んとするものである。
(Object of the Invention) The present invention has been made to eliminate such drawbacks, and provides a sliding contact material that suppresses the adhesion of Ag-Cd alloy, improves wear resistance, and has low and stable contact resistance. This is what we intend to provide.

(発明の構成) 本発明のすり接点材料は、Ag中に、Cを0.1〜5重
量%とNb、In、Baの少なくとも1種を0.5〜1
0重量%添加して成るものである。
(Structure of the Invention) The sliding contact material of the present invention contains 0.1 to 5% by weight of C and 0.5 to 1% of at least one of Nb, In, and Ba in Ag.
It is made by adding 0% by weight.

また本発明のすり接点材料の添加元素の一部を0.01
〜0.5重量%の範囲でFe族元素(Fe、Co。
In addition, some of the additive elements of the sliding contact material of the present invention are 0.01
-0.5% by weight of Fe group elements (Fe, Co.

Ni)に置換しても良いものである。Ni) may be substituted.

かかる本発明のすり接点材料に於いて、Ag中に0.1
〜5!!i量%のCを添加するのは、Agの耐摩耗性を
向上させる為で、0.1重量%未満ではその効果が現わ
れず、5重量%を超えると加工困難となるものである。
In the sliding contact material of the present invention, 0.1
~5! ! The purpose of adding i% of C is to improve the wear resistance of Ag; if it is less than 0.1% by weight, the effect will not appear, and if it exceeds 5% by weight, it will be difficult to process.

またNb、In、Baの少なくとも1種を0.5〜10
重量%添加するのは、すり動作中に発生する前記元素の
酸化物が潤滑剤として作用し耐摩耗性を向上させる為で
、0.5重量%未満ではその効果が現われず、10重量
%を超えると、酸化物の発生量が多く接触抵抗が高く不
安定になるものである。さらに添加元素の一部を0.0
1〜0.5重量%の範囲でFe族元素(F s、  C
o。
In addition, at least one of Nb, In, and Ba is added at 0.5 to 10
The reason for adding 10% by weight is that the oxides of the above elements generated during the sliding action act as lubricants and improve wear resistance. If it exceeds the range, a large amount of oxides will be generated, resulting in high contact resistance and instability. Furthermore, some of the added elements are added to 0.0
Fe group elements (Fs, C
o.

Ni)に置換した場合には、結晶粒を微細化でき一段と
耐摩耗性を向上できるもので、0.01重量%未満では
結晶粒を微細化できず、0.5重量%を超えると合金せ
ず、Ag中に単体で大きな塊りとして析出し、それ以上
の効果の得られないものである。
When substituted with Ni), the crystal grains can be made finer and the wear resistance can be further improved. If it is less than 0.01% by weight, the grains cannot be made finer, and if it exceeds 0.5% by weight, the alloy cannot be made. First, it precipitates alone in Ag as a large lump, and no further effect can be obtained.

(実施例及び従来例) 本発明によるすり接点材料と従来のすり接点材料にて作
った小型モータの整流子の接点片について説明する。
(Embodiments and Conventional Examples) A contact piece for a commutator of a small motor made of a sliding contact material according to the present invention and a conventional sliding contact material will be described.

後記の表の左欄に示す成分組成の本発明の実施例である
すり接点材料と従来例のすり接点材料にて、図面に示す
如く小型モータの直径12鶴、長さ8flの整流子1の
外周に厚さ2flの接点片1aが形成され、この接点片
1aの外周面の上下に、Au−Ag−Cu−Ptより成
る直径0.7tm 、長さ8nの2本の刷子線材2を有
する刷子接点3を相対向するように接触させて、後記の
試験条件にて整流子1の回転試験を行い、接点片1aの
摩耗量と接触抵抗を測定した処、後記の表の右欄に示す
ような結果を得た。
Using the sliding contact material according to the embodiment of the present invention and the conventional sliding contact material having the compositions shown in the left column of the table below, a commutator 1 of a small motor with a diameter of 12 mm and a length of 8 fl as shown in the drawings was used. A contact piece 1a with a thickness of 2 fl is formed on the outer periphery, and two brush wires 2 made of Au-Ag-Cu-Pt with a diameter of 0.7 tm and a length of 8 n are provided above and below the outer peripheral surface of the contact piece 1a. A rotation test was conducted on the commutator 1 under the test conditions described below with the brush contacts 3 facing each other, and the wear amount and contact resistance of the contact piece 1a were measured, as shown in the right column of the table below. I got similar results.

試験条件 電    圧:DC12V 電    流7 0.6A 整流子の回転数: 1000r p m整流子の回転時
間ニア時間 刷子接点の接触カニ 100g (以下余白) 前記の表で明らかなように従来例の接点片の摩耗量に比
べ、実施例の接点片の摩耗量は著しく減少していて耐摩
耗性に優れていることが判る。また従来例の接点片を有
する整流子の接触抵抗に対し、実施例の接点片を有する
整流子の接触抵抗は低く安定していることが判る。
Test conditions Voltage: DC12V Current 7 0.6A Commutator rotation speed: 1000rpm Commutator rotation time Near time Brush contact contact crab 100g (blank below) As is clear from the table above, the conventional contact It can be seen that the amount of wear on the contact piece of the example is significantly reduced compared to the amount of wear on the piece, indicating that it has excellent wear resistance. Furthermore, it can be seen that the contact resistance of the commutator having the contact pieces of the example is lower and more stable than the contact resistance of the commutator having the contact pieces of the conventional example.

(発明の効果) 以上詳記した通り本発明のすり接点材料は、凝着しにく
く耐摩耗性に優れているので、これにより作った小型モ
ータの整流子の接点片は刷子接点とのすり接待摩耗粉の
発生が極めて少なく、従ってノイズが発生することがな
く、接触抵抗が低く安定している等の優れた効果がある
(Effects of the Invention) As detailed above, the sliding contact material of the present invention is resistant to adhesion and has excellent wear resistance. There are excellent effects such as extremely little generation of abrasion powder, therefore no noise, and low and stable contact resistance.

【図面の簡単な説明】[Brief explanation of drawings]

図は小型モータの整流子と刷子接点との接触状態を示す
斜視図である。 1−−・整流子、1a−−−−一接点片、2−・・−・
刷子線材、3−一一一・−刷子接点。
The figure is a perspective view showing the state of contact between the commutator and brush contacts of a small motor. 1--Commutator, 1a--One contact piece, 2--...
Brush wire, 3-111--brush contact.

Claims (1)

【特許請求の範囲】 1)Ag中に、Cを0.1〜5重量%とNb、In、B
aの少なくとも1種を0.5〜10重量%添加して成る
すり接点材料。 2)上記添加元素の一部が0.01〜0.5重量%の範
囲でFe族元素に置換されていることを特徴とする特許
請求の範囲第1項記載のすり接点材料。
[Claims] 1) 0.1 to 5% by weight of C and Nb, In, B in Ag
A sliding contact material containing 0.5 to 10% by weight of at least one of the following. 2) The sliding contact material according to claim 1, wherein a part of the additional element is substituted with an Fe group element in a range of 0.01 to 0.5% by weight.
JP25244684A 1984-11-29 1984-11-29 Sliding contact point material Pending JPS61130443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25244684A JPS61130443A (en) 1984-11-29 1984-11-29 Sliding contact point material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25244684A JPS61130443A (en) 1984-11-29 1984-11-29 Sliding contact point material

Publications (1)

Publication Number Publication Date
JPS61130443A true JPS61130443A (en) 1986-06-18

Family

ID=17237488

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25244684A Pending JPS61130443A (en) 1984-11-29 1984-11-29 Sliding contact point material

Country Status (1)

Country Link
JP (1) JPS61130443A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6223947A (en) * 1985-07-25 1987-01-31 Tanaka Kikinzoku Kogyo Kk Sliding contact material
WO1993006993A1 (en) * 1991-09-30 1993-04-15 Olin Corporation Silver alloys for electrical connector coatings

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6223947A (en) * 1985-07-25 1987-01-31 Tanaka Kikinzoku Kogyo Kk Sliding contact material
WO1993006993A1 (en) * 1991-09-30 1993-04-15 Olin Corporation Silver alloys for electrical connector coatings

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