JPH06136473A - Internally oxidized electrical contact material of ag-sn alloy - Google Patents
Internally oxidized electrical contact material of ag-sn alloyInfo
- Publication number
- JPH06136473A JPH06136473A JP4324579A JP32457992A JPH06136473A JP H06136473 A JPH06136473 A JP H06136473A JP 4324579 A JP4324579 A JP 4324579A JP 32457992 A JP32457992 A JP 32457992A JP H06136473 A JPH06136473 A JP H06136473A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- electrical contact
- contact material
- internally
- internally oxidized
- 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
- 239000000463 material Substances 0.000 title claims abstract description 22
- 229910001128 Sn alloy Inorganic materials 0.000 title 1
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 16
- 239000000956 alloy Substances 0.000 claims abstract description 16
- 229910017980 Ag—Sn Inorganic materials 0.000 claims abstract description 9
- 229910052716 thallium Inorganic materials 0.000 claims abstract description 5
- 229910052718 tin Inorganic materials 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 3
- 229910052751 metal Inorganic materials 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims abstract description 3
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 3
- 230000001590 oxidative effect Effects 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 229910001316 Ag alloy Inorganic materials 0.000 description 4
- 229910018956 Sn—In Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910000925 Cd alloy Inorganic materials 0.000 description 1
- 229910000846 In alloy Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Contacts (AREA)
- Conductive Materials (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Switches (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、開閉器や遮断器，接続
器等の電気機器に広く用いることができる電気接点用材
料、特にＡｇ−Ｓｎ系内部酸化合金の電気接点材料に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material for electrical contacts which can be widely used in electrical equipment such as switches, circuit breakers and connectors, and more particularly to an electrical contact material of Ag-Sn internal oxide alloy. .
【０００２】[0002]
【従来の技術】この種の電気接点材料としては、Ａｇ−
Ｃｄ合金を内部酸化したものが先ず開発された。しか
し、公害防止のためにＣｄの使用を避けることが望ま
れ、Ａｇ−Ｓｎ合金を内部酸化したものが近時は広く使
われている。Ａｇ合金中のＳｎを均一に分散して内部酸
化することは誠に難しく、このためＡｇ−Ｓｎ合金中に
Ｉｎを加え、この合金を内部酸化したＡｇ−Ｓｎ−Ｉｎ
系内部酸化電気接点材料が使われている。2. Description of the Related Art Ag-
An internally oxidized Cd alloy was first developed. However, in order to prevent pollution, it is desired to avoid the use of Cd, and internally oxidized Ag—Sn alloys have been widely used recently. It is extremely difficult to uniformly disperse Sn in the Ag alloy and internally oxidize it. Therefore, In is added to the Ag—Sn alloy to internally oxidize the Ag—Sn—In alloy.
An internal oxidation electrical contact material is used.
【０００３】このＡｇ−Ｓｎ−Ｉｎ系合金を内部酸化し
た電気接点材料は、電気接点としての諸特性に優れ、Ａ
ｇ−Ｃｄ酸化物中電気接点材料に優るとも劣らないもの
であるが、接触抵抗の安定性の面ではいま一歩の改良が
期待されるところである。The electrical contact material obtained by internally oxidizing this Ag--Sn--In alloy is excellent in various characteristics as an electrical contact, and
Although it is not inferior to the electrical contact material in g-Cd oxide, it is expected to make a further improvement in terms of stability of contact resistance.
【０００４】[0004]
【発明が解決しようとする課題】そこで、本発明は使用
寿命中に安定した接触抵抗を有するＡｇ−Ｓｎ系内部酸
化電気接点材料を提供することを目的としてなされたも
のである。Therefore, the present invention has been made for the purpose of providing an Ag-Sn-based internally oxidized electrical contact material having a stable contact resistance during the service life.
【０００５】[0005]
【課題を解決するための手段】木発明では、３〜１５重
量％のＳｎを含むＡｇ合金に０．１〜７重量％のＴｌ
（タリウム）を添加して、この合金を内部酸化した。Ｔ
ｌはＣｄの如き公害性を持たず、しかもＩｎを使用した
場合よりも遥かに均一にＳｎをＡｇ中で内部酸化し得る
ことが見出された。In the wood invention, 0.1 to 7 wt% Tl is added to an Ag alloy containing 3 to 15 wt% Sn.
(Thallium) was added to internal oxidize the alloy. T
It has been found that l has no pollution like Cd and can oxidize Sn in Ag much more uniformly than in the case of using In.
【０００６】また、Ｔｌ酸化物はＣｄ酸化物に類似した
融点と蒸気点を有するために、Ａｇ−Ｃｄ酸化物接点材
料の場合と同様に、Ｔｌ酸化物を含んだＡｇ−Ｓｎ酸化
物電気接点材料はその接点面が自己浄化される。このこ
とは、接点の接触抵抗の安定化に大きく寄与するもので
ある。Also, because Tl oxide has a melting point and vapor point similar to Cd oxide, Ag-Sn oxide electrical contacts containing Tl oxide, similar to Ag-Cd oxide contact materials. The contact surface of the material is self-cleaning. This greatly contributes to the stabilization of the contact resistance of the contact.
【０００７】この発明のＡｇ合金に使われるＳｎの下限
値の３重量％は、得られる接点材料を耐火性にするため
に必要な量であり、その上限値の１５重量％は、得られ
る接点材料の加工性が極端に損なわれないようにするた
めの量である。また、Ｔｌの下限値の０．１重量％は上
記したＳｎのＡｇ中での内部酸化を促進するためと、接
点面の自己浄化性を保証するための最低量であり、その
上限値の７重量％は得られる接点材料に加工性を残すた
めの量である。なお、上記の重量％のＳｎとＴｌは共に
Ａｇと固溶し得る範囲内にある。The lower limit of 3% by weight of Sn used in the Ag alloy of the present invention is an amount necessary for making the obtained contact material refractory, and the upper limit of 15% by weight is the obtained contact material. This is an amount for preventing the workability of the material from being extremely impaired. The lower limit of 0.1% by weight of Tl is the minimum amount for promoting the above internal oxidation of Sn in Ag and for ensuring the self-cleaning property of the contact surface, and the upper limit of 7%. The weight% is an amount for leaving workability in the obtained contact material. The above-mentioned weight% of Sn and Tl are both within the range where they can form a solid solution with Ag.
【０００８】また、従来行なわれていた通り、合金の結
晶組織の調整のために、Ａｇ合金中に更にＦｅ族元素金
属のＦｅ，Ｃｏ，Ｎｉの一或は複数を０．００１〜１重
量％含有せしめてもよい。Further, as has been conventionally done, in order to adjust the crystal structure of the alloy, 0.001 to 1% by weight of one or a plurality of Fe, Co and Ni of Fe group element metals is further added to the Ag alloy. You may make it contain.
【０００９】[0009]
（１）Ａｇ−Ｓｎ６重量％−Ｔｌ２重量％ （２）Ａｇ−Ｓｎ６重量％ーＴｌ３重量％ーＮｉ０．２
重量％ （３）Ａｇ−Ｓｎ６重量％ーＩｎ２重量％ （４）Ａｇ−Ｃｄｌ０重量％(1) Ag-Sn6 wt% -Tl2 wt% (2) Ag-Sn6 wt% -Tl3 wt% -Ni0.2
Weight% (3) Ag-Sn6 weight% -In2 weight% (4) Ag-Cdl0 weight%
【００１０】上記のうち、本発明合金の（１）と
（２）、及び対比のための合金（３）と（４）の組成分
をそれぞれ高周波溶解炉にて溶解してインゴットにし
た。このインゴットの表面を機械切削して皮剥きした後
に、この皮剥きされた面に純Ａｇ板を加熱プレスで圧着
した。これを圧延率３０％毎に約６００℃で焼鈍して、
２ｍｍの板状に圧延した。この板を７００℃，７ａｔｍ
の酸素雰囲気中で内部酸化した。Of the above, the alloy components (1) and (2) of the present invention and the alloy components (3) and (4) for comparison were each melted in a high frequency melting furnace into an ingot. The surface of this ingot was mechanically cut to peel it off, and a pure Ag plate was press-bonded to the peeled surface with a heating press. This is annealed at about 600 ° C for every 30% rolling rate,
It rolled into a plate shape of 2 mm. This plate is 700 ℃, 7atm
It was internally oxidized in the oxygen atmosphere.
【００１１】この板を６ｍｍ径のポンチで打抜いて、外
径６ｍｍ×厚さ２ｍｍの上記した合金（１）（２），
（３），（４）にそれぞれ対応する接点試料（１），
（２），（３），（４）を得た。This plate was punched with a punch having a diameter of 6 mm, and the above alloys (1) (2) having an outer diameter of 6 mm and a thickness of 2 mm,
Contact samples corresponding to (3) and (4) (1),
(2), (3) and (4) were obtained.
【００１２】これら試料をそれぞれの接触抵抗（ｍΩ）
を測定するためにマグネットスイッチに取付け、ＪＩＳ
−ＡＣ３に基づき、次の条件にてテストした。なお、測
定値は、電源側および負荷側端子測定して得たものであ
る。 電 圧：ＡＣ２００Ｖ（投入） ３５Ｖ（遮断） 電 流：１５０Ａ（投入） ２５Ａ（遮断） 負荷リアクター：Ｐｆ＝０．３５ 頻 度：６０回／分 回 数：２，０００，０００回 接点圧力：１００ｇ その結果は、表１の通りであった。Contact resistance (mΩ) of each of these samples
Attached to a magnet switch to measure
-It tested based on AC3 on the following conditions. The measured values are obtained by measuring the power source side and load side terminals. Voltage: AC200V (make) 35V (break) Current: 150A (make) 25A (break) Load reactor: Pf = 0.35 Frequency: 60 times / minute Frequency: 2,000,000 times Contact pressure: 100g The results are shown in Table 1.
【００１３】[0013]
【表１】 [Table 1]
【００１４】[0014]
【発明の効果】上記のテスト結果から明らかな通り、本
発明になる接点材料は、優秀な在来の接点材料と比べて
も、接触抵抗が極めて安定している。As is apparent from the above test results, the contact material according to the present invention has extremely stable contact resistance as compared with excellent conventional contact materials.
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成４年１２月１６日[Submission date] December 16, 1992
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００３[Name of item to be corrected] 0003
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００３】 このＡｇ−Ｓｎ−Ｉｎ系合金を内部酸化
した電気接点材料は、電気接点としての諸特性に優れ、
Ａｇ−Ｃｄ酸化物電気接点材料に優るとも劣らないもの
であるが、接触抵抗の安定性の面ではいま一歩の改良が
期待されるところである。The electrical contact material obtained by internally oxidizing the Ag—Sn—In alloy is excellent in various characteristics as an electrical contact,
Although it is not inferior to Ag-Cd oxide electrical contact materials , it is expected to make a further improvement in terms of contact resistance stability.
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１２[Correction target item name] 0012
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１２】 これら試料をそれぞれの接触抵抗（ｍ
Ω）を測定するためにマグネットスイッチに取付け、Ｊ
ＩＳ−ＡＣ３に基づき、次の条件にてテストした。な
お、測定値は、電源側および負荷側端子部をｍΩテスタ
ーにて測定して得たものである。 電 圧：ＡＣ２００Ｖ（投入） ３５Ｖ（遮断） 電 流：１５０Ａ（投入） ２５Ａ（遮断） 負荷リアクター：ｐｆ＝０．３５ 頻 度：６０回／分 回 数：２，０００，０００回 接点圧力：１００ｇ その結果は、表１の通りであった。The contact resistance (m
Ω) is attached to the magnet switch to measure
It tested on the following conditions based on IS-AC3. The measured values are measured on the power supply side and load side terminals with an mΩ tester.
It was obtained by measuring at . Voltage: AC200V (make) 35V (break) Current: 150A (make) 25A (break) Load Reactor: pf = 0.35 Frequency: 60 times / minute Frequency: 2,000,000 times Contact pressure: 100g The results are shown in Table 1.
Claims (2)
％のＴｌと残部Ａｇの合金を内部酸化したＡｇ−Ｓｎ系
合金の内部酸化電気接点材料。1. An internally oxidized electrical contact material of an Ag—Sn alloy obtained by internally oxidizing an alloy of 3 to 15 wt% Sn, 0.1 to 7 wt% Tl, and the balance Ag.
％のＴｌとＦｅ族元素金属のＦｅ，Ｃｏ，Ｎｉの一或は
複数を０．００１〜１重量％と残部Ａｇの合金を内部酸
化したＡｇ−Ｓｎ系合金の内部酸化電気接点材料。2. An amount of 0.001 to 1% by weight of Sn, 3 to 15% by weight of Sn, 0.1 to 7% by weight of Tl, and one or more of Fe, Co, and Ni of Fe group element metal and the balance of Ag. An internally oxidized electrical contact material of an Ag-Sn alloy obtained by internally oxidizing the alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4324579A JPH06136473A (en) | 1992-10-21 | 1992-10-21 | Internally oxidized electrical contact material of ag-sn alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4324579A JPH06136473A (en) | 1992-10-21 | 1992-10-21 | Internally oxidized electrical contact material of ag-sn alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06136473A true JPH06136473A (en) | 1994-05-17 |
Family
ID=18167398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4324579A Pending JPH06136473A (en) | 1992-10-21 | 1992-10-21 | Internally oxidized electrical contact material of ag-sn alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06136473A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100328136B1 (en) * | 2000-03-21 | 2002-03-12 | 채창근 | Preparing method for silver alloy having high anticorrosion and abrasion resistance |
| CN100432250C (en) * | 2006-01-12 | 2008-11-12 | 沈阳金纳新材料有限公司 | Preparation process of silver tin oxide electric contact material |
| CN112899519A (en) * | 2019-12-04 | 2021-06-04 | 西安西电高压开关有限责任公司 | Preparation method of silver-tin oxide composite board and contact |
-
1992
- 1992-10-21 JP JP4324579A patent/JPH06136473A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100328136B1 (en) * | 2000-03-21 | 2002-03-12 | 채창근 | Preparing method for silver alloy having high anticorrosion and abrasion resistance |
| CN100432250C (en) * | 2006-01-12 | 2008-11-12 | 沈阳金纳新材料有限公司 | Preparation process of silver tin oxide electric contact material |
| CN112899519A (en) * | 2019-12-04 | 2021-06-04 | 西安西电高压开关有限责任公司 | Preparation method of silver-tin oxide composite board and contact |
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