JPH0371522A - Electric contact material and manufacture thereof - Google Patents
Electric contact material and manufacture thereofInfo
- Publication number
- JPH0371522A JPH0371522A JP20757489A JP20757489A JPH0371522A JP H0371522 A JPH0371522 A JP H0371522A JP 20757489 A JP20757489 A JP 20757489A JP 20757489 A JP20757489 A JP 20757489A JP H0371522 A JPH0371522 A JP H0371522A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- contact material
- layer
- heat treatment
- surface layer
- 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
Links
- 239000000463 material Substances 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 229910017941 Ag—Li Inorganic materials 0.000 claims abstract description 16
- 239000001989 lithium alloy Substances 0.000 claims abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 9
- 239000002344 surface layer Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000009792 diffusion process Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 229910052787 antimony Inorganic materials 0.000 abstract description 2
- 229910052737 gold Inorganic materials 0.000 abstract description 2
- 229910052738 indium Inorganic materials 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 229910052746 lanthanum Inorganic materials 0.000 abstract description 2
- 229910052748 manganese Inorganic materials 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 229910052718 tin Inorganic materials 0.000 abstract description 2
- 229910052793 cadmium Inorganic materials 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910017944 Ag—Cu Inorganic materials 0.000 description 2
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- 229910017937 Ag-Ni Inorganic materials 0.000 description 1
- 229910017984 Ag—Ni Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910001252 Pd alloy Inorganic materials 0.000 description 1
- 229910000711 U alloy Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
Landscapes
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Manufacture Of Switches (AREA)
- Contacts (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、電気接点として耐アーク性を向上させて消耗
性を低減せしめた電気接点材とその製造方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an electrical contact material having improved arc resistance and reduced consumability as an electrical contact, and a method for manufacturing the same.
〔従来の技術と発明が解決しようとする課題〕開閉接点
や摺動接点等に用いられる電気接点材には、Ａｇ又はＡ
ｇにＣｕやＮｉを１〜２０ｗｔ％程度添加したＡｇ−Ｃ
ｕ合金、Ａｇ−Ｎｉ合金等が使用されている。[Prior art and problems to be solved by the invention] Electrical contact materials used for switching contacts, sliding contacts, etc. contain Ag or A.
Ag-C with approximately 1 to 20 wt% of Cu or Ni added to g
U alloy, Ag-Ni alloy, etc. are used.
従来より一般的に使用されている上記接点材は、耐アー
ク性、耐磨耗性が充分に得られない問題があり、特に汎
用されているＡｇ−Ｃｕ合金からなる接点材は、使用時
に発生するＣｕの酸化物が接点特性に悪影響を及ぼすと
考えられており、耐アーク性、耐磨耗性に優れ、消耗量
の少ない電気接点材の開発が強く要望されていた。The above-mentioned contact materials that have been commonly used in the past have the problem of insufficient arc resistance and wear resistance, and in particular, contact materials made of commonly used Ag-Cu alloys have the problem of not providing sufficient arc resistance and abrasion resistance. It is believed that Cu oxides have an adverse effect on contact properties, and there has been a strong demand for the development of electrical contact materials that have excellent arc resistance, wear resistance, and less wear.
本発明はこれに鑑み種々検討の結果、耐アーク性を向上
せしめ、材料の消耗量を著しく低減せしめた電気接点材
とその製造方法を開発したものである。In view of this, as a result of various studies, the present invention has developed an electrical contact material that has improved arc resistance and significantly reduced the amount of material consumption, and a method for manufacturing the same.
即ち本発明電気接点材は、Ａｇ−Ｌｔ系合金の表面層に
、Ｌｉ又は酸化Ｌｉのリッチ層を形成したことを特徴と
するものである。That is, the electrical contact material of the present invention is characterized in that a rich layer of Li or Li oxide is formed on the surface layer of the Ag-Lt alloy.
また本発明の製造方法は、Ａｇ−Ｌｉ系合金に加熱処理
を施すことにより、Ａｇ−Ｌｉ系合金の表面層に、熱拡
散によるＬｉ又は酸化Ｌｉのリッチ層を形成することを
特徴とするものである。Furthermore, the manufacturing method of the present invention is characterized in that by heat-treating the Ag-Li alloy, a rich layer of Li or Li oxide is formed by thermal diffusion on the surface layer of the Ag-Li alloy. It is.
本発明は、上記の如（Ａｇ−Ｌｉ系合金に加熱処理を施
すことにより、ＬｉをＡｇ−Ｌｉ系合金の表面層に拡散
し、表面層にＬ ｉ又は酸化Ｌｉのリッチな極めて薄い
層を形成したもので、Ａｇ合金同志の摺動で発生する凝
着、磨耗、アーク発生等による電気的な磨耗を防止する
ことができる。In the present invention, Li is diffused into the surface layer of the Ag-Li alloy by heat-treating the Ag-Li alloy, and an extremely thin layer rich in Li or Li oxide is formed on the surface layer. This structure can prevent electrical abrasion caused by adhesion, abrasion, arc generation, etc. caused by sliding of Ag alloys.
本発明におけるＡｇ−Ｌ ｉ系合金としては、Ａｇ−Ｌ
ｉ合金を始め、これにＬａ、Ｉｎ。As the Ag-Li alloy in the present invention, Ag-L
Starting with i-alloy, La and In.
Ｎｉ、、Ｚｎｓ Ｓｂ、Ｃｕ、Ｃｄ５Ｃｒ、Ｍｇ。Ni, Zns, Sb, Cu, Cd5Cr, Mg.
Ｍｎ、Ｆｅ、Ｓｎ、Ｂ ｉ、Ｐｄ、Ａｕ等の中から選ば
れる１種又は２種以上を含み、Ｌｉの含有量は通常５ｗ
１％以下とすることが望ましい。Contains one or more selected from Mn, Fe, Sn, Bi, Pd, Au, etc., and the Li content is usually 5w.
It is desirable that it be 1% or less.
またその厚さは１μｍ以上とする。加熱処理条件は１０
０〜７００℃で１分〜２時間位の範囲で行なう。Further, the thickness thereof is 1 μm or more. Heat treatment conditions are 10
It is carried out at 0 to 700°C for about 1 minute to 2 hours.
本発明接点材は、そのまま接点材として使用することは
勿論、Ｃｕ又はＣｕ合金等の母材と複合材として経済的
に使用することもできる。The contact material of the present invention can be used as a contact material as it is, or it can be economically used as a composite material with a base material such as Cu or Cu alloy.
以下本発明を実施例について詳細に説明する。 The present invention will be described in detail below with reference to examples.
第１表に示す種々のＡｇ−Ｌｉ系合金を溶解鋳造し、こ
れを通常の熱間圧延と冷間圧延を施して厚さ１ｍｍの板
材とした。これに第１表に示す加熱処理を施して表層に
Ｌｉのリッチ層を形成した本発明電気接点材を作成した
。Various Ag-Li alloys shown in Table 1 were melted and cast, and then subjected to conventional hot rolling and cold rolling to form plates with a thickness of 1 mm. This was subjected to the heat treatment shown in Table 1 to form an electrical contact material of the present invention in which a Li-rich layer was formed on the surface layer.
この電気接点材をＡｇ ５０ｗ＋％Ｐｄ合金からなる
直径５ｍｍのロッドと、電流０．５Ａ、振動速度ＩＱＯ
Ｈｚ 、接触圧力２［１ｇｔ、接触時間４８Ｈｒの条件
で接触させ、接点材とロフトの消耗量と接触抵抗を測定
した。This electrical contact material was connected to a rod with a diameter of 5 mm made of Ag 50w + % Pd alloy, a current of 0.5 A, and a vibration speed of IQO.
Contact was made under the conditions of Hz, contact pressure 2 [1 gt, and contact time 48 hours, and the wear amount of the contact material and loft and the contact resistance were measured.
その結果を第１表に示すＡｇ−Ｃｕ系合金からなる従来
の電気接点材とＡｇ−Ｌｉ合金からなる加熱処理を施さ
ない比較接点材と比較して第２表に示す。The results are shown in Table 2 in comparison with a conventional electrical contact material made of an Ag-Cu alloy shown in Table 1 and a comparative contact material made of an Ag-Li alloy that was not subjected to heat treatment.
第１表
第２表
消耗量を著しく減少せしめると共に、接触抵抗も小さく
、電気接点材として優れていることが判る。Table 1 Table 2 It can be seen that the wear amount is significantly reduced and the contact resistance is also small, making it an excellent electrical contact material.
これに対しＡｇ−Ｌｉ系合金を加熱処理しない比較接点
材では消耗量が増大すると共に、接触抵抗も増大してい
ることが判る。On the other hand, it can be seen that in the comparison contact material in which the Ag-Li alloy is not heat-treated, the amount of wear increases and the contact resistance also increases.
このように本発明によれば、電気接点材の耐アーク性を
改善して材料の消耗量を著しく減少させ、接点材の寿命
を大巾に向上させることができる等工業上顕著な効果を
奏するものである。As described above, according to the present invention, the arc resistance of electrical contact materials can be improved, the amount of material consumption can be significantly reduced, and the life span of contact materials can be greatly extended, which brings about remarkable industrial effects. It is something.
Claims (2)
のリッチ層を形成したことを特徴とする電気接点材。(1) Li or oxidized Li is added to the surface layer of the Ag-Li alloy.
An electrical contact material characterized by forming a rich layer of.
Ａｇ−Ｌｉ系合金の表面層に、熱拡散によるＬｉ又は酸
化Ｌｉのリッチ層を形成することを特徴とする電気接点
材の製造方法。(2) By applying heat treatment to Ag-Li alloy,
A method for manufacturing an electrical contact material, which comprises forming a rich layer of Li or Li oxide by thermal diffusion on a surface layer of an Ag-Li alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20757489A JPH0371522A (en) | 1989-08-10 | 1989-08-10 | Electric contact material and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20757489A JPH0371522A (en) | 1989-08-10 | 1989-08-10 | Electric contact material and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0371522A true JPH0371522A (en) | 1991-03-27 |
Family
ID=16542008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20757489A Pending JPH0371522A (en) | 1989-08-10 | 1989-08-10 | Electric contact material and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0371522A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002008481A1 (en) * | 2000-07-21 | 2002-01-31 | Tanaka Kikinzoku Kogyo K.K. | Make break contact material comprising ag-ni based alloy having ni metal particles dispersed and relay using the same |
| WO2002008480A1 (en) * | 2000-07-21 | 2002-01-31 | Mabuchi Motor Co., Ltd. | SLIDING CONTACT MATERIAL COMPRISING Ag-Ni BASED ALLOY HAVING Ni METAL PARTICLES DISPERSED AND CLAD COMPOSITE MATERIAL, AND DC COMPACT MOTOR USING THE SAME |
| CN106521228A (en) * | 2016-10-28 | 2017-03-22 | 国网浙江省电力公司温州供电公司 | High-voltage electric contact material and preparation method thereof |
-
1989
- 1989-08-10 JP JP20757489A patent/JPH0371522A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002008481A1 (en) * | 2000-07-21 | 2002-01-31 | Tanaka Kikinzoku Kogyo K.K. | Make break contact material comprising ag-ni based alloy having ni metal particles dispersed and relay using the same |
| WO2002008480A1 (en) * | 2000-07-21 | 2002-01-31 | Mabuchi Motor Co., Ltd. | SLIDING CONTACT MATERIAL COMPRISING Ag-Ni BASED ALLOY HAVING Ni METAL PARTICLES DISPERSED AND CLAD COMPOSITE MATERIAL, AND DC COMPACT MOTOR USING THE SAME |
| US6638334B2 (en) | 2000-07-21 | 2003-10-28 | Mabuchi Motor Co., Ltd. | Sliding contact material comprising Ag-Ni based alloy having Ni metal particles dispersed and clad composite material, and Dc compact motor using the same |
| US6746551B2 (en) | 2000-07-21 | 2004-06-08 | Tanaka Kikinzoku Kogyo K.K. | Make break contact material comprising ag-ni based alloy having ni metal particles dispersed and relay using the same |
| CN106521228A (en) * | 2016-10-28 | 2017-03-22 | 国网浙江省电力公司温州供电公司 | High-voltage electric contact material and preparation method thereof |
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