JPS59185746A - Electrical contact material - Google Patents
Electrical contact materialInfo
- Publication number
- JPS59185746A JPS59185746A JP58061207A JP6120783A JPS59185746A JP S59185746 A JPS59185746 A JP S59185746A JP 58061207 A JP58061207 A JP 58061207A JP 6120783 A JP6120783 A JP 6120783A JP S59185746 A JPS59185746 A JP S59185746A
- Authority
- JP
- Japan
- Prior art keywords
- resistance
- electrical contact
- weight
- contact material
- group element
- 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、アークによる消
耗が大きく、耐アーク性、耐消耗性に劣るため耐電圧特
性及び絶縁抵抗が劣化するが、耐溶着性に優れ、接触抵
抗が安定している為、広く多用されている。Electrical contact materials made of Ag-Cd0 are subject to large amounts of wear due to arcing, and are inferior in arc resistance and wear resistance, resulting in deterioration of withstand voltage characteristics and insulation resistance; however, they have excellent welding resistance and stable contact resistance. Therefore, it is widely used.
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傾向が進んでいる。In recent years, with the miniaturization of relays, there has been a trend toward a reduction in contact force and separation force, miniaturization of contacts, and narrowing of contact gaps.
この為、優れた耐溶着性、安定した接触抵抗を有し、且
つ耐アーク性、耐消耗性に優れた電気接点材が要望され
ている。For this reason, there is a demand for electrical contact materials that have excellent welding resistance, stable contact resistance, and excellent arc resistance and wear 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優れた耐溶着性、安定
した接触抵抗をそのまま具有し、耐アーク性、耐消耗性
が大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 which retains the excellent welding resistance and stable contact resistance of the -Cd0 electrical contact material, and which has significantly improved arc resistance and wear resistance.
本発明の電気接点材料の１つは、Ｃｄ １０〜２０重量
％、Ｃｕ０．５〜５重量％、 Ｂ ｉ ０．１〜３重
量％。One of the electrical contact materials of the present invention contains 10 to 20% by weight of Cd, 0.5 to 5% by weight of Cu, and 0.1 to 3% by weight of Bi.
残部Ａｇより成り、且つ内部酸化されているものである
。The remainder consists of Ag and is internally oxidized.
本発明の電気接点材料の他の１つは、Ｃｄ１Ｏ〜２０重
量％、 Ｃｕ ０．５〜５重量％、 Ｂ ｉ ０．１
〜３重量％、Ｆｅ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ものである。Another electrical contact material of the present invention is Cd1O to 20% by weight, Cu 0.5 to 5% by weight, B i 0.1
~3% by weight, 0.01~0.5% by weight of Fe group elements, and the balance is Ag, and is internally oxidized.
これら本発明の電気接点材料に於いて、その成分組成を
上記の如く限定した理由について説明すると、Ｃ（ｉ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％未満では良好な耐溶着性が得
られず、２０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重量％が好適である。Ｃｕは電気伝導度を高め、ま
た酸化物を微細化して、耐アーク性、耐消耗性を向上す
るために必要で、０．５重量％未満ではその効果が無（
，５重量％を超えると耐溶着性が大幅に劣化するため０
．５〜５重量％が好適である。ＢｉはＣｕ添加による耐
消耗性の向上効果を損なうことはなく、耐溶着性の劣化
を防く為に必要で、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。The reason for limiting the component composition of the electrical contact materials of the present invention as described above is as follows: C (i is necessary to maintain excellent welding resistance and stable contact resistance as is well known); If it is less than 10% by weight, good welding resistance cannot be obtained, and if it exceeds 20% by weight, the abrasion resistance deteriorates even if elements that improve the abrasion resistance are added.
20% by weight is preferred. Cu is necessary to increase electrical conductivity, refine the oxide, and improve arc resistance and wear resistance. If it is less than 0.5% by weight, it has no effect (
, if it exceeds 5% by weight, the welding resistance will be significantly deteriorated.
．． 5 to 5% by weight is preferred. Bi does not impair the effect of improving wear resistance due to the addition of Cu, and is necessary to prevent deterioration of welding resistance. If it is less than 0.1% by weight, it has no effect, and if it exceeds 3% by weight, it deteriorates the alloy. Extremely lowers the melting point,
Since internal oxidation at high temperatures is not possible, 0.1 to 3% by weight is preferred.
Ｆｅ族元素は耐アーク性、耐消耗性をより一層向上させ
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重量％を超えると接触抵抗が高く不安
定となるので、０．０１〜０．５Ｍ量％が好適である。Fe group elements are added to further improve arc resistance and abrasion resistance. If it is less than 0.01% by weight, it has no effect, and if it exceeds 0.5% by weight, the contact resistance is high and unstable. Therefore, 0.01 to 0.5 M% is suitable.
次に本発明による電気接点材料と従来の電気接点材料に
て作った電気接点について説明する。Next, electrical contacts made using the electrical contact material according to the present invention and the conventional electrical contact material will be explained.
下記の表の左欄に示す成分組成で内部酸化した実施例１
〜７の電気接点材料と従来例１〜２の電気接点材料にて
作った直径５闘、厚さｌ ｍｉの固定接点と直径４ｍｍ
、厚さ１．１＋ｎ＋ｎ、 ５Ｒの可動接点とを対向さ
せて、下記の試験条件にて接点開閉試験を行った処、下
記の表の右欄に示すような結果を得た。Example 1 internally oxidized with the component composition shown in the left column of the table below
A fixed contact with a diameter of 5 mm and a thickness of 1 mm and a diameter of 4 mm made from the electrical contact materials of ~7 and conventional examples 1 and 2.
, thickness 1.1+n+n, 5R movable contacts were placed facing each other, and a contact opening/closing test was conducted under the following test conditions, and the results shown in the right column of the table below were obtained.
試験条件
電 圧 ： ＡＣｌｏｏＶ ５０Ｈｚ電
流 ： 投入４０Ａ、定常１０Ａ負 荷 ：
抵抗
開閉頻度 ： ２０回／分
開閉回数 ： 溶着発生塩
接触力 ： ４０ｇ
開離力 ＝ ４５ｇ
（以下余白）
上記の表の右欄に示す数値で明ら力・なように実施例１
〜７の電気接点材料より成る電気接点かよ、従来例１〜
２の電気接点材料より成る電気接点と溶着発生塩の開閉
回数が近似していて、同等番こ耐溶着性に優れ、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。そしてアーク消耗量については、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よりも遥かに少なく
耐アーク性、耐消耗性が優れている−ことが判る。Test conditions Voltage: AClooV 50Hz Current: 40A input, 10A steady load:
Resistance opening/closing frequency: 20 times/min Number of opening/closing: Welding salt contact force: 40g Breaking force = 45g (Left below)
An electrical contact made of ~7 electrical contact materials, conventional example 1~
It can be seen that the number of openings and closings of the electrical contact made of the electrical contact material No. 2 and the welding salt is similar, and that it has the same excellent welding resistance, and that the contact resistance is equally low and stable with little variation. . Regarding the amount of arc consumption, the electrical contacts made of the electrical contact materials of Examples 1 to 7 were compared with the conventional examples 1 to 7.
It can be seen that the arc resistance and abrasion resistance are far superior to that of the electrical contact made of the electrical contact material No. 2.
以上の説明で判るように本発明の電気接点材料は、従来
のＡｇ−Ｃｄ０より成る電気接点材料と同等の優れた耐
溶着性と安定した接触抵抗を有し、その上耐アーク性、
耐消耗性については格段に向上しているので、従来のＡ
ｇ−Ｃｄ０より成る電気接点材料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 description, the electrical contact material of the present invention has excellent welding resistance and stable contact resistance equivalent to the conventional electrical contact material made of Ag-Cd0, and also has arc resistance and
The wear resistance has been significantly improved, so it is better than the conventional A.
It can be said that it is an epoch-making product that can replace the electrical contact material made of g-Cd0.
出願人 田中貴金属工業株式会社Applicant: Tanaka Kikinzoku Kogyo Co., Ltd.
Claims (1)
〜５重量％、Ｂ１０１１〜３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）０６１０〜２０重量％、 Ｃｕ Ｏ，５〜５重量％
、Ｂｉｏ、１〜３重量％、ＦＣ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電気接点材
料。[Claims] 1') Cd 10-20% by weight, Cu 0.5
An electrical contact material consisting of ~5% by weight, B1011~3% by weight, and the balance being internally oxidized. 2) 0610-20% by weight, CuO, 5-5% by weight
, Bio, 1-3% by weight, FC group element! 0.01-0.5
weight%. An electrical contact material whose remainder is made of Ag and which is internally oxidized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58061207A JPS59185746A (en) | 1983-04-07 | 1983-04-07 | Electrical contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58061207A JPS59185746A (en) | 1983-04-07 | 1983-04-07 | Electrical contact material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59185746A true JPS59185746A (en) | 1984-10-22 |
| JPH036972B2 JPH036972B2 (en) | 1991-01-31 |
Family
ID=13164508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58061207A Granted JPS59185746A (en) | 1983-04-07 | 1983-04-07 | Electrical contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59185746A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58210137A (en) * | 1982-05-31 | 1983-12-07 | Tanaka Kikinzoku Kogyo Kk | Electrical contact material |
-
1983
- 1983-04-07 JP JP58061207A patent/JPS59185746A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58210137A (en) * | 1982-05-31 | 1983-12-07 | Tanaka Kikinzoku Kogyo Kk | Electrical contact material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH036972B2 (en) | 1991-01-31 |
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