JPS59185748A - Electrical contact material - Google Patents
Electrical contact materialInfo
- Publication number
- JPS59185748A JPS59185748A JP58061209A JP6120983A JPS59185748A JP S59185748 A JPS59185748 A JP S59185748A JP 58061209 A JP58061209 A JP 58061209A JP 6120983 A JP6120983 A JP 6120983A JP S59185748 A JPS59185748 A JP S59185748A
- Authority
- JP
- Japan
- Prior art keywords
- resistance
- electrical contact
- weight
- 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.)
- Pending
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)
- Contacts (AREA)
- Conductive Materials (AREA)
- Manufacture Of Switches (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。Therefore, it has excellent welding resistance and stable contact resistance.
There is also a demand for electrical contact materials that have 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 １５〜２０Ｍ量
％、Ｚｎ０．５〜５重量％、 Ｂ ｉ ０．１〜３重
量％。One of the electrical contact materials of the present invention contains 15 to 20 M% of Cd, 0.5 to 5% of Zn, and 0.1 to 3% 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、Ｃｄ １５〜２０
重量％、 Ｚｎ ０．５〜５重量％、 Ｂ ｉ Ｏ，
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 Cd 15-20
Weight%, Zn 0.5-5% by weight, B i O,
It consists of 1 to 3% by weight, 0.01 to 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、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、１５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、１５〜２
Ｏｆｉ量％が好適である。Ｚｎは熱的に安定で、耐アー
ク性、耐消耗性の向上に必要で、０．５重量％未満では
その効果が無く、５重量％を超えると内部酸化時にＺｎ
の酸化物が層状に析出し、接点開閉時の接触抵抗及び温
度上昇値が高くなり、後述のＢｉの添加では抑えきれな
くなるので、０．５〜５重量％が好適である。Ｂｉは内
部酸化時にＺｎの酸化物が層状に析出し、接点開閉時の
接触抵抗及び温度上昇値が高くなるのを防ぐ為に必要で
、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 why the component composition of the electrical contact materials of the present invention is limited as described above is as follows.As is well known, Cd is necessary to maintain excellent welding resistance and stable contact resistance, and Cd is necessary for maintaining excellent welding resistance and stable contact resistance. If it is less than 20% 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.
Ofi amount % is suitable. Zn is thermally stable and is necessary to improve arc resistance and wear resistance. If it is less than 0.5% by weight, it has no effect, and if it exceeds 5% by weight, Zn will be removed during internal oxidation.
0.5 to 5% by weight is preferable because the oxides precipitate in a layered manner, increasing the contact resistance and temperature rise when opening and closing the contacts, which cannot be suppressed by adding Bi, which will be described later. Bi is necessary to prevent Zn oxides from precipitating in layers during internal oxidation, which increases the contact resistance and temperature rise when opening and closing the contacts.If it is less than 0.1% by weight, it has no effect, and if it is less than 3% by weight, If it exceeds 0.1 to 3% by weight, the melting point of the alloy will be extremely lowered and internal oxidation at high temperatures will become impossible.
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、０．０１〜０．５重量％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% by weight 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鶴、厚さＩＷｌＩｌｌの固定接点と直径４
鶴、厚さ １．１ｕ＋、 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 IWlIll and a diameter of 4 made of the electrical contact materials of ~7 and conventional examples 1 and 2.
A contact opening/closing test was conducted under the following test conditions using a movable contact of 1.1 μ+ thickness and 5R facing each other, and the results shown in the right column of the table below were obtained.
試験条件
電 圧 ： ＡＣｌｏｏＶ ５０Ｈ２電
流 ： 投入４０Ａ、定常１０Ａ負 荷 ：
抵抗
開閉頻度 ＝ ２０回／分
開閉回数 ： 溶着発生迄
接触力 ＝ ４０ｇ
開離力 ：４５・ｇ
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と熔着発生迄の開閉回数
が近似していて、同等に耐溶着性に優れ、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 condition voltage: AClooV 50H2 voltage
Current: Input 40A, steady 10A load:
Resistance switching frequency = 20 times/min Number of switching: Contact force until welding occurs = 40 g Breaking force: 45 g 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 similar number of openings and closings until welding occurs, and has the same excellent welding resistance as the electrical contacts made of the electrical contact materials of Conventional Examples 1 and 2. It can be seen that it is equally low and stable with little variation. Regarding the amount of arc consumption, Examples 1 to 7
It can be seen that the electrical contacts made of the electrical contact materials shown in FIG.
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をし、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＝ＣｄＱ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 explanation, 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 material that can replace the electrical contact material made of g=CdQ.
出願人 田中貴金属工業株式会社Applicant: Tanaka Kikinzoku Kogyo Co., Ltd.
Claims (1)
％、Ｂｉｏ、１〜３重量％、残部Ａ、ｇより成り、且つ
内部酸化されている電気接点材料。 ２）Ｃｄ１５〜２０重量％、 Ｚｎ ０．５ｒ−５重量
％、ＢｉＯ，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電気接点材
料。[Scope of Claims] 1) An electrical contact material consisting of 0615 to 20% by weight, Zn 0.5 to 5% by weight, Bio, 1 to 3% by weight, and the balance A and g, and which is internally oxidized. 2) Cd 15-20% by weight, Zn 0.5r-5% by weight, BiO, 1-3% by weight, Fe group element 0.01-0.
5% by 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 |
|---|---|---|---|
| JP58061209A JPS59185748A (en) | 1983-04-07 | 1983-04-07 | Electrical contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58061209A JPS59185748A (en) | 1983-04-07 | 1983-04-07 | Electrical contact material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59185748A true JPS59185748A (en) | 1984-10-22 |
Family
ID=13164568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58061209A Pending JPS59185748A (en) | 1983-04-07 | 1983-04-07 | Electrical contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59185748A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4883390A (en) * | 1972-02-11 | 1973-11-07 | ||
| JPS4888494A (en) * | 1972-02-24 | 1973-11-20 | ||
| JPS5543776A (en) * | 1978-09-21 | 1980-03-27 | Sumitomo Electric Industries | Sintered electric contact material |
-
1983
- 1983-04-07 JP JP58061209A patent/JPS59185748A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4883390A (en) * | 1972-02-11 | 1973-11-07 | ||
| JPS4888494A (en) * | 1972-02-24 | 1973-11-20 | ||
| JPS5543776A (en) * | 1978-09-21 | 1980-03-27 | Sumitomo Electric Industries | Sintered electric contact material |
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