JPH04314837A - Electrical contact material of silver oxide series - Google Patents
Electrical contact material of silver oxide seriesInfo
- Publication number
- JPH04314837A JPH04314837A JP3122024A JP12202491A JPH04314837A JP H04314837 A JPH04314837 A JP H04314837A JP 3122024 A JP3122024 A JP 3122024A JP 12202491 A JP12202491 A JP 12202491A JP H04314837 A JPH04314837 A JP H04314837A
- Authority
- JP
- Japan
- Prior art keywords
- electrical contact
- contact material
- resistance
- silver oxide
- silver
- 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
- 239000000463 material Substances 0.000 title claims abstract description 24
- OTCVAHKKMMUFAY-UHFFFAOYSA-N oxosilver Chemical class [Ag]=O OTCVAHKKMMUFAY-UHFFFAOYSA-N 0.000 title abstract 3
- 229910001316 Ag alloy Inorganic materials 0.000 claims abstract description 9
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 229910052738 indium Inorganic materials 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 5
- 229910052718 tin Inorganic materials 0.000 claims abstract 3
- 238000003466 welding Methods 0.000 claims description 17
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 claims description 12
- 238000005299 abrasion Methods 0.000 claims description 10
- 229910001923 silver oxide Inorganic materials 0.000 claims description 6
- 230000001590 oxidative effect Effects 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 4
- 230000008021 deposition Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Contacts (AREA)
- Manufacture Of Switches (AREA)
Abstract
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 This invention relates to a silver-oxide electrical contact material which has excellent welding resistance and abrasion 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。[Prior Art] Many electrical contact materials have been proposed in the past.
It is incorporated into various electrical and electronic devices and put into practical use. Among these many electrical contact materials, one of the electrical contact materials that is widely used is, for example,
As described in Publication No. 5-4825, in weight% (hereinafter % indicates 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%,
A silver-oxidized Ag alloy is obtained by subjecting an Ag alloy having a composition of Ag and unavoidable impurities to an internal oxidation treatment, i.e., holding a temperature of 650 to 750°C 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。[Problems to be Solved by the Invention] On the other hand, in recent years, the performance of electrical and electronic equipment has improved and the service life has become longer.
Along with this, there is a tendency for the electrical contact materials incorporated into these materials to be required to have even greater welding resistance and abrasion resistance. At present, it is not possible to satisfactorily meet these requirements because the welding resistance and abrasion resistance are insufficient.
【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：４〜１１％、 Ｉｎ：１〜５％、
Ｔｅ：０．０５〜４％、
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：０．０１〜１％、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。[0004] Therefore, from the above-mentioned viewpoint, the inventors of the present invention particularly focused on the above-mentioned conventional electrical contact materials, and as a result of conducting research in order to further improve the welding resistance and abrasion resistance of these materials. , Sn: 4-11%, In: 1-5%,
Contains Te: 0.05 to 4%, and further contains Fe, Ni, and C as necessary.
Silver obtained by internally oxidizing an Ag alloy containing one or more of the following: 0.01 to 1%, with the remainder consisting of Ag and unavoidable impurities, under the above-mentioned normal conditions. - Research results have been obtained that oxide-based electrical contact materials have much better welding resistance and abrasion resistance than the above-mentioned conventional silver-oxide-based electrical 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。[0005] This invention was made based on the above research results, and the reason why the composition of the Ag alloy before internal oxidation treatment of the silver-oxide electrical contact material was limited as described above is as follows. Explain.
【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４％未満では所望の
耐溶着性向上効果が得られず、一方その含有量が１１％
を越えると、接点としての接触抵抗が過大になると共に
、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４〜１１％と定めた。(a) Sn The Sn component mainly forms oxides and has the effect of improving welding resistance, but if its content is less than 4%, the desired effect of improving welding resistance cannot be obtained. , while its content is 11%
If it exceeds this amount, the contact resistance as a contact becomes excessive and the processability during manufacturing decreases, so the content was determined to be 4 to 11%.
【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％未満では前記作用に
所望の効果が得られず、一方その含有量が５％を越える
と耐溶着性に劣化傾向が現れるようになることから、そ
の含有量を１〜５％と定めた。(b) In The In component has the effect of promoting the oxidation of the Sn component and also forming oxides to improve welding resistance and abrasion resistance, but when the content is 1% If the content is less than 5%, the desired effect cannot be obtained, while if the content exceeds 5%, the welding resistance tends to deteriorate. Therefore, the content is set at 1 to 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０．０５％未満で
は前記作用に所望の向上効果が得られず、一方その含有
量が４％を越えると加工性が低下するようになることか
ら、その含有量を０．０５〜４％と定めた。(c) Te The Te component has the effect of forming an oxide that easily sublimates when arcing occurs due to contact opening/closing, and further improves welding resistance and abrasion resistance, but if the content is 0.05 If the content is less than 4%, the desired effect of improving the above-mentioned action cannot be obtained, while if the content exceeds 4%, the processability will deteriorate. Therefore, the content was set at 0.05 to 4%.
【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０．０１％未満では
前記作用に所望の効果が得られず、一方その含有量が１
％を越えると加工性が低下するようになることから、そ
の含有量を０．０１〜１％と定めた。(d) Fe, Ni, and Co These components have the effect of forming a solid solution in the base material and making the oxide and Ag particles finer, thereby improving the welding resistance, so they may be added as necessary. However, if its content is less than 0.01%, the desired effect cannot be obtained; on the other hand, if its content is less than 1%,
If the content exceeds 0.01% to 1%, the processability will deteriorate.
【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：３０ｍ
ｍ×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：７
０ｍｍ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：２
ｍｍ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 electrical contact material of the present invention will be explained in detail with reference to examples. Ag alloys having the compositions shown in Tables 1 and 2 are melted using a normal high-frequency melting furnace, and cast into ingots under normal conditions, and hot extruded to a thickness of: A 5mm thick plate is made into a width of 30m by hot and cold rolling.
A thin plate of m×thickness: 0.6 mm was cut into slices along the length direction to a width of 2 mm, and the cut pieces were kept at a temperature of 700°C in an oxygen atmosphere for 24 hours. Then, the cut pieces after the internal oxidation treatment were put together and compression molded to a diameter of 7.
This billet is made into a 0mm billet, extruded to a diameter of 7mm, then wire-drawn to a diameter of 2mm, and finally, this wire is passed through a header machine.
Head diameter: 4mm x Head thickness: 1mm x Foot diameter: 2mm x Foot length: 2
By forming a rivet with a dimension of (referred to as materials) 1 to 11 were manufactured, respectively.
【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 ：８
０ｇ、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。これらの測定結
果を表１，２に示した。Next, using an ASTM electrical contact tester, the various contact materials obtained as a result were tested to determine the DC voltage:
14V, making current: 150A, breaking current: 30A, energizing time: 1 second ON-9
OFF for seconds, contact force: 80g, separation force: 8
An electrical test was conducted under the following conditions: 0g, opening and closing times: 10,000 times, the number of welding times and the amount of wear were measured, and the welding resistance and wear resistance were evaluated. The results of these measurements 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。Effects of the Invention From the results shown in Tables 1 and 2, it can be seen that contact materials 1 to 13 of the present invention exhibit much better welding resistance and wear resistance than conventional contact materials 1 to 11. it is obvious. As mentioned above, the silver-oxide electrical contact material of the present invention has excellent welding resistance and abrasion resistance, so when it is incorporated into various electrical and electronic devices and put into practical use, it can be used in these electrical and electronic devices. It has industrially useful properties, such as greatly contributing to higher performance and longer service life.
Claims (2)
Ｔｅ：０．０５〜４％、 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。[Claim 1] In weight%, Sn: 4 to 11%, In: 1 to 5%,
A silver-oxide electrical contact with excellent welding resistance and abrasion resistance, which is obtained by internally oxidizing an Ag alloy containing Te: 0.05 to 4%, with the remainder consisting of Ag and unavoidable impurities. material.
Ｔｅ：０．０５〜４％、 を含有し、さらに、Ｆｅ，Ｎｉ，およびＣｏのうちの１
種または２種以上：０．０１〜１％、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。[Claim 2] In weight%, Sn: 4 to 11%, In: 1 to 5%,
Contains Te: 0.05 to 4%, and further contains one of Fe, Ni, and Co.
A silver-oxidized silver alloy with excellent welding resistance and abrasion resistance, which is obtained by internally oxidizing an Ag alloy containing 0.01 to 1% of a species or two or more species, with the remainder consisting of Ag and unavoidable impurities. Physical electrical contact materials.
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 |
| DE69219397T DE69219397T2 (en) | 1991-04-12 | 1992-02-05 | Silver-based metal oxide material for electrical contacts |
| EP92101915A EP0508055B1 (en) | 1991-04-12 | 1992-02-05 | Silver-base 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 true JPH04314837A (en) | 1992-11-06 |
| JPH0762188B2 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) |
Cited By (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 |
| US8187395B2 (en) | 2003-08-08 | 2012-05-29 | Mitsubishi Materials C.M.I. Corporation | Electrical contact having high electrical conductivity made of internally oxidized silver-oxide material for compact electromagnetic relay |
Citations (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
Patent Citations (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 |
Cited By (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 |
| US8187395B2 (en) | 2003-08-08 | 2012-05-29 | Mitsubishi Materials C.M.I. Corporation | Electrical contact having high electrical conductivity made of internally oxidized silver-oxide material for compact electromagnetic relay |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0762188B2 (en) | 1995-07-05 |
| CA2080201C (en) | 1996-11-12 |
| CA2080201A1 (en) | 1994-04-09 |
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