JPS59215442A - Electrical contact material - Google Patents
Electrical contact materialInfo
- Publication number
- JPS59215442A JPS59215442A JP58087948A JP8794883A JPS59215442A JP S59215442 A JPS59215442 A JP S59215442A JP 58087948 A JP58087948 A JP 58087948A JP 8794883 A JP8794883 A JP 8794883A JP S59215442 A JPS59215442 A JP S59215442A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- electrical contact
- resistance
- contact material
- contact
- 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.)
- Granted
Links
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
- H01H1/0237—Composite material having a noble metal as the basic material and containing oxides
- H01H1/02372—Composite material having a noble metal as the basic material and containing oxides containing as major components one or more oxides of the following elements only: Cd, Sn, Zn, In, Bi, Sb or Te
- H01H1/02374—Composite material having a noble metal as the basic material and containing oxides containing as major components one or more oxides of the following elements only: Cd, Sn, Zn, In, Bi, Sb or Te containing as major component CdO
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Manufacture Of Switches (AREA)
- Contacts (AREA)
- Conductive Materials (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、電気接点材料に係り、特にＡｇ−Ｃｄ０より
成る電気接点材料の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to electrical contact materials, and particularly to improvements in electrical contact materials made of Ag-Cd0.
Ａｇ−Ｃｄ０より成る電気接点材料は、継電器の接触力
、開離力の大きい場合、耐溶着性に優れ、接触抵抗が安
定している為、広（多用されている。Electrical contact materials made of Ag-Cd0 are widely used because they have excellent adhesion resistance and stable contact resistance when the contact force and separation force of relays are large.
昨今、継電器の小型化に伴い接触力、開離力の低下、接
点の小型化、接点ギャップの狭小化に伴い耐溶着性に問
題が生じてきた。この為、耐溶着性に優れた電気接点月
が要望されている。Recently, as relays have become smaller, contact force and separation force have decreased, contacts have become smaller, and contact gaps have become narrower, resulting in problems with welding resistance. For this reason, there is a demand for electrical contacts with excellent welding resistance.
本発明は斯かる要望を満たすべく鋭意攻究の結果、Ａｇ
−Ｃｄ０より成る電気接点材料の安定した接触抵抗をそ
のまま具有し、１ｉｉ１溶着性が太幅に向上した電気接
点材料を見い出したものである。The present invention was developed as a result of intensive research to meet such demands.
An electrical contact material has been discovered that has the same stable contact resistance as the electrical contact material made of -Cd0, and has significantly improved 1ii1 weldability.
本発明の電気接点材料の１つは、Ｃｄ １０〜２０市量
％、Ｔｅｌ〜５市量％、ＣｕＯ，５−５重量％。One of the electrical contact materials of the present invention is Cd 10-20% by weight, Tel-5% by weight, CuO 5-5% by weight.
ＢｉＯ，１〜３屯量％、残部Ａｇより成り、且つ内部酸
化されているものである。It consists of BiO, 1 to 3 tonne weight percent, and the balance is Ag, and is internally oxidized.
本発明の電気接点材料の他の１つは、Ｃｄ １０〜２０
重呈％、Ｔｅ １〜５ｉ景％、Ｃｕ Ｏ，５〜５重量
％、ＢｉＯ，１〜３重量％、ｌｉ”ｅ族元＠０．０１〜
０．５重量％、残部Ａｇより成り、且つ内部酸化されて
いるものである。Another electrical contact material of the present invention is Cd 10-20
weight%, Te 1-5i weight%, CuO, 5-5% by weight, BiO, 1-3% by weight, li”e group element @0.01~
It consists of 0.5% by weight, the balance being Ag, and is internally oxidized.
これら本発明の電気接点材料に於い−Ｃ１その成分組成
を上記の如（限定した理由について説明すると、Ｃｄは
周知の如く優れた耐溶着性と安定した接触抵抗を保持す
るのに必要で、１０重量％未〆＋Ｙｉでは良好な耐溶着
性が得られず、２０重重量を超えると耐消耗性を向上さ
せる元素が添加されていても耐消耗性が劣下するので、
１０〜２０屯星％が好適である。Ｃｕは内部酸化時に析
出する酸化物を微細化し、電気伝導度を」二げ耐消耗性
を向上するのに必要で、０．５重量％未満では’Ｉ”ｅ
、Ｂｉの添加による耐消耗性の劣化を抑えきれず、５車
量％を超えると耐溶着性が劣化するので、０．５〜５重
量％が好適である。ｌ″ｅはその酸化物が接点開閉時に
昇華しやすく耐溶着性の向上に必要で、１重量％未満で
はその効果がなく、５重量％を超えると耐消耗性が劣化
するので、１〜５重量％が好適である。Ｂｉはその酸化
物が脆く、解離しやすいため接触力、開離力の小さい場
合の耐溶着性の向上に必要で、０．１重量％未満ではそ
の効果が無く、３重量％を超えると合金の融点を極端に
低下させ、高温での内部酸化が不可能となるので、０．
１〜３重量％が好適である。Ｆ ｅ族元素は耐アーク性
。In these electrical contact materials of the present invention, the component composition of -C1 is limited to the above (explaining the reason for this), as is well known, Cd is necessary to maintain excellent welding resistance and stable contact resistance. If the weight is less than 10% by weight + Yi, good welding resistance cannot be obtained, and if it exceeds 20% by weight, the wear resistance deteriorates even if elements that improve wear resistance are added.
10-20 tonxing% is suitable. Cu is necessary to refine the oxides precipitated during internal oxidation, improve electrical conductivity, and improve wear resistance.
, the deterioration of wear resistance due to the addition of Bi cannot be completely suppressed, and if it exceeds 5% by weight, the welding resistance deteriorates, so 0.5 to 5% by weight is suitable. l"e is necessary for improving welding resistance because its oxide tends to sublimate when opening and closing contacts. If it is less than 1% by weight, it will not have this effect, and if it exceeds 5% by weight, wear resistance will deteriorate, so it should be 1 to 5. % by weight is preferable. Bi is necessary for improving welding resistance when the contact force and separation force are small because its oxide is brittle and easily dissociated, and if it is less than 0.1% by weight, it has no effect. If it exceeds 3% by weight, the melting point of the alloy will be extremely lowered and internal oxidation at high temperatures will become impossible.
1 to 3% by weight is preferred. Fe Group elements are arc resistant.
耐消耗性を向上させる為に添加するもので、０．０１重
量％未満ではその効果が無く、 ０．５車量％を超える
と接触抵抗が高く不安定となるので、０．０１〜０．５
重情％が好適である。It is added to improve wear resistance, and if it is less than 0.01% by weight, it has no effect, and if it exceeds 0.5% by weight, the contact resistance becomes high and unstable. 5
A weighty percentage is preferred.
次に本発明による電気接点材料と従来の電気接点月利に
て作った電気接点について説明する。Next, an electric contact made using the electric contact material according to the present invention and a conventional electric contact material will be explained.
ド記の表の左欄に示す成分組成の粉粒体を内部酸化した
後、圧縮、焼結、押出、引抜等の工程を経て得た実施例
１〜７の電気接点材料と従来例１゜２の電気接点月利に
て作った直径５ｍｍ、厚さ１關の固定接点と直径４順、
厚さ１．１ｍｍ、 ５Ｒの＋ｙＪ動接点とを対向させ
て、下記の試験条件にて接点開閉試験を行った処、下記
の表の右１閣に示すような結果を得た。Electrical contact materials of Examples 1 to 7 obtained by internally oxidizing powder and granules having the composition shown in the left column of the table, and then undergoing processes such as compression, sintering, extrusion, and drawing, and conventional example 1゜A fixed contact with a diameter of 5 mm and a thickness of 1 inch made using the electrical contacts of 2 and a diameter of 4 in order,
A contact opening/closing test was conducted under the following test conditions with a 1.1 mm thick, 5R +yJ moving contact facing each other, and the results shown in the right column of the table below were obtained.
試験条件
電 圧 ： Ａ Ｃ１００Ｖ ５０ ｔ
（ｚ電 流 ： 投入４０Ａ、宇宙１０Δ負 荷
： 抵抗
開閉頻度 ： ２０回／分
開閉回数 ： 溶着発生迄
接触力 ： ４０ｇ
開離力 ： ４５ｇ
上記の表の右欄に示す数値で明らかなように実施例１〜
７の電気接点材料より成る電気接点は、従来例１．２の
電気接点材料より成る電気接点に比し、溶着発生迄の開
閉回数が多く耐溶着性に優れ、また接触抵抗も同等に低
く且つばら′つきが少なくて安定していることが判る。Test condition voltage: AC100V 50t
(z current: input 40A, space 10Δ load
: Resistance switching frequency: 20 times/min Number of switching: Contact force until welding occurs: 40g Breaking force: 45g As is clear from the values shown in the right column of the table above, Examples 1 to 2
The electrical contact made of the electrical contact material No. 7 has a higher number of openings and closings before welding occurs than the electrical contact made of the electrical contact material No. 7 of Conventional Example 1.2, and has excellent welding resistance. It can be seen that there is little variation and it is stable.
そしてアーク消耗量については、実施例１〜７の電気接
点月利より成る電気接点は、従来例１，２の電気接点ト
ｉ料より成る電気接点と同等若しくはそれ以下であるこ
とが判る。As for the amount of arc consumption, it can be seen that the electrical contacts made of the electrical contact materials of Examples 1 to 7 are equal to or lower than the electrical contacts made of the electrical contact materials of Conventional Examples 1 and 2.
以上の説明で判るように本発明の電気接点月利は、従来
のＡｇ−Ｃｄ０より成る電気接点材料と同等の安定した
接触抵抗を有し、その」−耐ｌ容着性については格Ｉｉ
Ｕに向上しているので、従来のΔｇ−ＣｄＯより成る電
気接点月利にとって代わることのできる画期的なものと
云える。As can be seen from the above explanation, the electrical contact of the present invention has a stable contact resistance equivalent to that of the conventional electrical contact material made of Ag-Cd0, and its adhesion resistance is rated Ii.
It can be said that it is an epoch-making product that can replace the conventional electric contact made of Δg-CdO.
Claims (1)
Ｏ１５〜５重量％、ＢｉＯ，１〜３重量％、残部Ａｇよ
り成り、且つ内部酸化されている電気接点材料。 ２）ＣｄｌＯ−２０重量％、′Ｉ″８１〜５Ｍ量％、
ＣｕＯ，５〜５重量％、Ｂｉｏ、１〜３重量％ ｌ？
６族元素０．０１〜０．５重量％、残部Ａｇより成り
、且つ内部酸化されている電気接点材料。[Claims] 1) Cd 10 to 20% by weight, T'el to 5% by weight, Cu
An electrical contact material consisting of 15-5% by weight of O, 1-3% by weight of BiO, and the balance being internally oxidized. 2) CdlO-20% by weight, 'I''81-5M amount%,
CuO, 5-5% by weight, Bio, 1-3% by weight l?
An electrical contact material consisting of 0.01 to 0.5% by weight of a Group 6 element and the balance being Ag, and which is internally oxidized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58087948A JPS59215442A (en) | 1983-05-19 | 1983-05-19 | Electrical contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58087948A JPS59215442A (en) | 1983-05-19 | 1983-05-19 | Electrical contact material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59215442A true JPS59215442A (en) | 1984-12-05 |
| JPH0235019B2 JPH0235019B2 (en) | 1990-08-08 |
Family
ID=13929105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58087948A Granted JPS59215442A (en) | 1983-05-19 | 1983-05-19 | Electrical contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59215442A (en) |
-
1983
- 1983-05-19 JP JP58087948A patent/JPS59215442A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0235019B2 (en) | 1990-08-08 |
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