JPH0762188B2 - Silver-oxide type electrical contact material - Google Patents
Silver-oxide type electrical contact materialInfo
- Publication number
- JPH0762188B2 JPH0762188B2 JP3122024A JP12202491A JPH0762188B2 JP H0762188 B2 JPH0762188 B2 JP H0762188B2 JP 3122024 A JP3122024 A JP 3122024A JP 12202491 A JP12202491 A JP 12202491A JP H0762188 B2 JPH0762188 B2 JP H0762188B2
- Authority
- JP
- Japan
- Prior art keywords
- electrical contact
- silver
- contact material
- oxide type
- type electrical
- 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.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
- C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
- C22C32/0021—Matrix based on noble metals, Cu or alloys thereof
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1078—Alloys containing non-metals by internal oxidation of material in solid state
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/06—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
- H01B1/08—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances oxides
-
- 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
Description
【０００１】[0001]
【産業上の利用分野】この発明は、耐溶着性および耐消
耗性にすぐれ、この結果長い使用寿命を示すようになる
銀−酸化物系電気接点材料に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a silver-oxide type electrical contact material which has excellent welding resistance and wear resistance and, as a result, exhibits a long service life.
【０００２】[0002]
【従来の技術】従来、多くの電気接点材料が提案され、
かつ各種の電気電子機器に組込まれて実用に供されてお
り、これら多くの電気接点材料のうちで、広く実用に供
されている電気接点材料の１つとして、例えば特公昭５
５−４８２５号公報に記載される通り、重量％で（以下
％は重量％を示す）、 Ｓｎ：５〜１０％、 Ｉｎ：１〜６％、 を含有し、さらに必要に応じて、Ｆｅ、Ｎｉ、およびＣ
ｏのうちの１種または２種以上：０．０１〜０．５％、
を含有し、残りがＡｇと不可避不純物からなる組成を有
するＡｇ合金に、内部酸化処理、すなわち酸化性雰囲気
中、６５０〜７５０℃の温度に所定時間保持の内部酸化
処理を施してなる銀−酸化物系電気接点材料が知られて
いる。2. Description of the Related Art Conventionally, many electric contact materials have been proposed,
Moreover, it is incorporated in various electric and electronic devices and is put to practical use. Among these many electrical contact materials, one of the widely used electrical contact materials is, for example, Japanese Patent Publication No.
As described in JP-A-5-4825, by weight% (hereinafter,% means weight%), Sn: 5 to 10%, In: 1 to 6%, and, if necessary, Fe, Ni and C
One or more of o: 0.01 to 0.5%,
Ag-oxidation, which is obtained by applying an internal oxidation treatment to an Ag alloy containing Ag and the balance consisting of Ag and unavoidable impurities, that is, an internal oxidation treatment in which a temperature of 650 to 750 ° C is maintained for a predetermined time in an oxidizing atmosphere. Physical electrical contact materials are known.
【０００３】[0003]
【発明が解決しようとする課題】一方、近年の電気電子
機器の高性能化および使用寿命の長期化はめざましく、
これに伴ない、これに組込まれる電気接点材料にもより
一層の耐溶着性および耐消耗性の向上が要求される傾向
にあるが、上記の従来電気接点材料はじめ、その他多く
の電気接点材料は耐溶着性および耐消耗性が十分でな
く、これらの要求に満足に対応することができないのが
現状である。On the other hand, in recent years, the performance and electric service life of electric and electronic devices have been remarkably increased,
Along with this, there is a tendency that the electrical contact materials incorporated therein are required to have further improved welding resistance and wear resistance, but the above conventional electrical contact materials and many other electrical contact materials are At present, the welding resistance and the wear resistance are insufficient, and it is not possible to satisfy these requirements in a satisfactory manner.
【０００４】そこで、本発明者等は、上述のような観点
から、特に上記の従来電気接点材料に着目し、これの耐
溶着性および耐消耗性の一段の向上をはかるべく研究を
行なった結果、 Ｓｎ：５．１〜８．５％、 Ｉｎ：１．５〜３．５％、 Ｔｅ：０．１〜０．８％、 を含有し、さらに必要に応じて、Ｆｅ、Ｎｉ、およびＣ
ｏのうちの１種または２種以上：０．０５〜０．２％、
を含有し、残りがＡｇと不可避不純物からなる組成を有
するＡｇ合金を、上記の通常の条件で内部酸化処理して
なる銀−酸化物系電気接点材料は、上記の従来銀−酸化
物系電気接点材料に比して一段とすぐれた耐溶着性およ
び耐消耗性を具備するという研究結果を得たのである。From the above viewpoints, the present inventors have paid special attention to the above-mentioned conventional electrical contact material, and conducted research to further improve the welding resistance and wear resistance thereof. , Sn: 5.1~8.5%, in: 1.5~3.5%, Te: 0.1~0.8%, containing, if necessary, Fe, Ni, and C
1 type or 2 types or more of o: 0.05-0.2 %,
The silver-oxide-based electrical contact material obtained by subjecting an Ag alloy containing Ag and the balance of Ag and inevitable impurities to the internal oxidation treatment under the above-mentioned ordinary conditions is the conventional silver-oxide-based electrical contact material described above. We obtained the research results that it has more excellent welding resistance and wear resistance than contact materials.
【０００５】この発明は、上記の研究結果にもとづいて
なされたものであって、以下に銀−酸化物系電気接点材
料の内部酸化処理前のＡｇ合金の成分組成を上記の通り
に限定した理由を説明する。The present invention was made based on the above research results, and the reason why the composition of the Ag alloy before the internal oxidation treatment of the silver-oxide type electrical contact material is limited as described above is as follows. Will be explained.
【０００６】（ａ）Ｓｎ Ｓｎ成分には、主体が酸化物を形成して耐溶着性を向上
させる作用があるが、その含有量が５．１％未満では所
望のすぐれた耐溶着性を得ることができず、一方その含
有量が８．５％を越えると、接点としての接触抵抗に上
昇傾向が現われるようになると共に、製造時の加工性が
低下するようになることから、その含有量を５．１〜
８．５％と定めた。(A) Sn The Sn component has a function of mainly forming an oxide to improve the welding resistance, but if the content thereof is less than 5.1 %, the desired excellent welding resistance is obtained. it is not possible, whereas when the content exceeds 8.5%, on the contact resistance of the contact
As the rising tendency comes to appear and the workability at the time of manufacturing is lowered, the content thereof is 5.1 to
It was set at 8.5 %.
【０００７】（ｂ）Ｉｎ Ｉｎ成分には、Ｓｎ成分の酸化を促進すると共に、自身
も酸化物を形成して耐溶着性および耐消耗性を向上させ
る作用があるが、その含有量が１．５％未満では前記作
用に所望の顕著な向上効果が得られず、一方その含有量
が３．５％を越えると耐溶着性に低下傾向が現われるよ
うになることから、その含有量を１．５〜３．５％と定
めた。(B) In The In component has the function of promoting the oxidation of the Sn component and also forming an oxide itself to improve the welding resistance and wear resistance, but the content is 1. If it is less than 5 %, the desired remarkable improvement effect cannot be obtained, while if it exceeds 3.5 %, the welding resistance tends to decrease . It was set at 5 to 3.5 %.
【０００８】（ｃ）Ｔｅ Ｔｅ成分には、接点開閉によるアーク発生時に昇華し易
い酸化物を形成し、耐溶着性および耐消耗性を一段と向
上させる作用があるが、その含有量が０．１％未満では
前記作用に所望の顕著な向上効果が得られず、一方その
含有量が０．８％を越えると加工性に低下傾向が現われ
るようになることから、その含有量を０．１〜０．８％
と定めた。(C) Te The Te component forms an oxide that easily sublimes when an arc is generated by opening and closing a contact, and has the function of further improving the welding resistance and wear resistance, but its content is 0.1. If the content is less than 0.1%, the desired remarkable improvement effect cannot be obtained, while if the content exceeds 0.8 %, the workability tends to decrease. 0.1 to 0.8 %
I decided.
【０００９】（ｄ）Ｆｅ、Ｎｉ、およびＣｏ これらの成分には、素地に固溶して酸化物およびＡｇ粒
を微細化し、もって耐溶着性を向上させる作用があるの
で、必要に応じて含有されるが、その含有量が０．０５
％未満では前記作用に所望のすぐれた向上効果が得られ
ず、一方その含有量が０．２％を越えると加工性に低下
傾向が現われるようになることから、その含有量を０．
０５〜０．２％と定めた。(D) Fe, Ni, and Co These components have the function of forming a solid solution in the base material to make the oxide and Ag particles finer, thereby improving the welding resistance, so they are contained as necessary. However, its content is 0.05
Not obtained the desired excellent improvement effect on the working is less than%, while lowering the workability and its content exceeds 0.2%
Since the tendency becomes so that appear, the content of 0.
It was set at 05 to 0.2 %.
【００１０】[0010]
【実施例】つぎに、この発明の銀−酸化物系電気接点材
料を実施例により具体的に説明する。通常の高周波溶解
炉を用い、それぞれ表１，２に示される成分組成をもっ
たＡｇ合金を溶製し、以下いずれも通常の条件で、イン
ゴットに鋳造し、熱間押出し加工にて厚さ：５mmの厚板
とし、この厚板を熱間および冷間圧延にて幅：３０mm×
厚さ：０．６mmの薄板とし、この薄板を長さ方向にそっ
て幅：２mmにスライス切断し、この切断片に対して、酸
素雰囲気中、温度：７００℃に２４時間保持の条件で内
部酸化処理を施し、ついでこの内部酸化処理後の切断片
をまとめて、これに圧縮成形を施して直径：７０mmのビ
レットとし、このビレットを直径：７mmに押出し加工
し、引続いて線引き加工にて直径：２mmの線材とし、最
終的にこの線材からヘッダーマシンにて、頭径：４mm×
頭厚：１mm×足径：２mm×足長：２mmの寸法をもったリ
ベットを形成することにより本発明銀−酸化物系電気接
点材料（以下、本発明接点材料という）１〜１３、およ
び従来銀−酸化物系電気接点材料（以下、従来接点材料
という）１〜１１をそれぞれ製造した。EXAMPLES Next, the silver-oxide type electrical contact material of the present invention will be specifically described by way of examples. Using an ordinary high-frequency melting furnace, Ag alloys having the component compositions shown in Tables 1 and 2, respectively, were melted and cast into an ingot under the usual conditions, and the thickness was obtained by hot extrusion. A thick plate of 5 mm, which is hot and cold rolled and has a width of 30 mm ×
A thin plate with a thickness of 0.6 mm was sliced along the length direction to a width of 2 mm, and the sliced pieces were placed inside an oxygen atmosphere at a temperature of 700 ° C for 24 hours. Oxidation treatment, and then the cut pieces after this internal oxidation treatment are put together and compression molded to form a billet with a diameter of 70 mm. This billet is extruded to a diameter of 7 mm and then drawn. Diameter: 2 mm wire rod, and finally from this wire rod in a header machine, head diameter: 4 mm ×
By forming a rivet having dimensions of head thickness: 1 mm x foot diameter: 2 mm x foot length: 2 mm, the silver-oxide type electrical contact material of the present invention (hereinafter referred to as the present contact material) 1 to 13 and the conventional one. Silver-oxide type electrical contact materials (hereinafter referred to as conventional contact materials) 1 to 11 were manufactured.
【００１１】[0011]
【表１】 [Table 1]
【００１２】[0012]
【表２】 [Table 2]
【００１３】ついで、この結果得られた各種の接点材料
について、ＡＳＴＭ電気接点試験機を用い、 直流電圧：１４Ｖ、 投入電流：１５０Ａ、 遮断電流：３０Ａ、 通電時間：１秒ＯＮ−９秒ＯＦＦ、 接触力 ：８０ｇ、 開離力 ：８０ｇ、 開閉回数：１００００回、 の条件で電気試験を行ない、溶着回数と消耗量を測定
し、耐溶着性および耐消耗性を評価した。それらの測定
結果を表１，２に示した。Then, with respect to the various contact materials obtained as a result, using an ASTM electrical contact tester, DC voltage: 14 V, making current: 150 A, breaking current: 30 A, energizing time: 1 second ON-9 seconds OFF, An electrical test was carried out under the conditions of contact force: 80 g, opening force: 80 g, number of times of opening and closing: 10,000 times, and the number of times of welding and the amount of wear were measured to evaluate the welding resistance and wear resistance. The measurement results are shown in Tables 1 and 2.
【００１４】[0014]
【発明の効果】表１，２に示される結果から、本発明接
点材料１〜１３は、いずれも従来接点材料１〜１１に比
して一段とすぐれた耐溶着性および耐消耗性を示すこと
が明らかである。上述のように、この発明の銀−酸化物
系電気接点材料は、すぐれた耐溶着性および耐消耗性を
具備するので、各種電気電子機器に組込まれて実用に供
した場合、これら電気電子機器の高性能化並びに使用寿
命の長期化に寄与するところ大なるものがあるなど工業
上有用な特性を有するのである。From the results shown in Tables 1 and 2, all of the contact materials 1 to 13 of the present invention show much better welding resistance and wear resistance than the conventional contact materials 1 to 11. it is obvious. As described above, the silver-oxide-based electrical contact material of the present invention has excellent welding resistance and wear resistance, and therefore, when incorporated into various electrical and electronic devices and put to practical use, these electrical and electronic devices are used. It has industrially useful properties, such as the fact that it contributes to higher performance and longer service life.
Claims (2)
するＡｇ合金を内部酸化処理してなる耐溶着性および耐
消耗性にすぐれた銀−酸化物系電気接点材料。1. A weight%, Sn: 5.1~8.5%, In : 1.5~3.5%, Te: 0.1~0.8%, contains a balance Ag A silver-oxide-based electrical contact material excellent in welding resistance and wear resistance, which is obtained by internally oxidizing an Ag alloy having a composition of inevitable impurities.
０．０５〜０．２％、を含有し、残りがＡｇと不可避不
純物からなる組成を有するＡｇ合金を内部酸化処理して
なる耐溶着性および耐消耗性にすぐれた銀−酸化物系電
気接点材料。2. A weight%, Sn: 5.1~8.5%, In : 1.5~3.5%, Te: 0.1~0.8%, containing further, Fe, One or more of Ni and Co:
A silver-oxide type electrical contact excellent in welding resistance and wear resistance, which is obtained by internally oxidizing an Ag alloy containing 0.05 to 0.2 % and the balance being Ag and inevitable impurities. material.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3122024A JPH0762188B2 (en) | 1991-04-12 | 1991-04-12 | Silver-oxide type electrical contact material |
| EP92101915A EP0508055B1 (en) | 1991-04-12 | 1992-02-05 | Silver-base metal oxide material for electrical contacts |
| DE69219397T DE69219397T2 (en) | 1991-04-12 | 1992-02-05 | Silver-based metal oxide material for electrical contacts |
| KR1019920005853A KR0121724B1 (en) | 1991-04-12 | 1992-04-08 | Silver-oxide based electric contact material |
| CA002080201A CA2080201C (en) | 1991-04-12 | 1992-10-08 | Silver-oxide based electric contact material |
| US08/224,430 US5451272A (en) | 1991-04-12 | 1994-04-08 | Silver-oxide electric contact material for use in switches for high current |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3122024A JPH0762188B2 (en) | 1991-04-12 | 1991-04-12 | Silver-oxide type electrical contact material |
| CA002080201A CA2080201C (en) | 1991-04-12 | 1992-10-08 | Silver-oxide based electric contact material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04314837A JPH04314837A (en) | 1992-11-06 |
| JPH0762188B2 true JPH0762188B2 (en) | 1995-07-05 |
Family
ID=25675579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3122024A Expired - Lifetime JPH0762188B2 (en) | 1991-04-12 | 1991-04-12 | Silver-oxide type electrical contact material |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0762188B2 (en) |
| CA (1) | CA2080201C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5451272A (en) * | 1991-04-12 | 1995-09-19 | Mitsubishi Materials Corporation | Silver-oxide electric contact material for use in switches for high current |
| EP1505164B1 (en) | 2003-08-08 | 2009-04-29 | Mitsubishi Materials C.M.I. Corporation | Process for producing an electrical contact having high electrical conductivity for a compact electromagnetic relay and produced electrical contact |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5233067A (en) * | 1975-09-10 | 1977-03-12 | Tokyo Shibaura Electric Co | Elecric contact material |
| JPS554825A (en) * | 1978-06-26 | 1980-01-14 | Seiko Epson Corp | Cell timepiece |
| JPS555583A (en) * | 1978-06-29 | 1980-01-16 | Omron Tateisi Electronics Co | Numeral set system |
| JPS58110639A (en) * | 1981-12-23 | 1983-07-01 | Tanaka Kikinzoku Kogyo Kk | Sliding contact material |
-
1991
- 1991-04-12 JP JP3122024A patent/JPH0762188B2/en not_active Expired - Lifetime
-
1992
- 1992-10-08 CA CA002080201A patent/CA2080201C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04314837A (en) | 1992-11-06 |
| CA2080201C (en) | 1996-11-12 |
| CA2080201A1 (en) | 1994-04-09 |
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