JPS62196343A - Electric contact material - Google Patents
Electric contact materialInfo
- Publication number
- JPS62196343A JPS62196343A JP61174388A JP17438886A JPS62196343A JP S62196343 A JPS62196343 A JP S62196343A JP 61174388 A JP61174388 A JP 61174388A JP 17438886 A JP17438886 A JP 17438886A JP S62196343 A JPS62196343 A JP S62196343A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- contact material
- oxide
- electric contact
- internal oxidation
- 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 9
- 239000000956 alloy Substances 0.000 claims abstract description 22
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 claims 1
- 239000004332 silver Substances 0.000 claims 1
- 230000003647 oxidation Effects 0.000 abstract description 10
- 238000007254 oxidation reaction Methods 0.000 abstract description 10
- 229910001316 Ag alloy Inorganic materials 0.000 abstract description 5
- 229910052738 indium Inorganic materials 0.000 abstract description 4
- 229910052718 tin Inorganic materials 0.000 abstract description 3
- 230000008021 deposition Effects 0.000 abstract 2
- 238000003466 welding Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001590 oxidative effect Effects 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
- 229910001923 silver oxide Inorganic materials 0.000 description 1
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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Manufacture Of Switches (AREA)
- Contacts (AREA)
Abstract
Description
【発明の詳細な説明】 内部酸化法で製造される銀−酸化物合金では。[Detailed description of the invention] In silver-oxide alloys manufactured by internal oxidation method.
Ａｇ−Ｃｄ０合金が最も広く実用化されている。Ag-Cd0 alloy is the most widely used.
このＡｇ−Ｃｄ０合金に他元素を添加して耐火度を高め
ることにより、大電流の遮断領域に用途が広げられつつ
ある。By adding other elements to this Ag-Cd0 alloy to increase its fire resistance, its applications are being expanded to the area of interrupting large currents.
ところが、これらのＡｇ−Ｃａ２系合金は通常その酸化
物４Ｙが徂賃比で６〜１５％含有するものであって、該
酸化物値の主体をなすＣｄは有害な元素であるので、Ｃ
ｄを使用しないで性能がＡｇ−Ｃａ２系合金と回等以、
Ｌである電気接点材料を開発することが本発明の主旨で
ある。However, these Ag-Ca2 alloys usually contain 6 to 15% of the oxide 4Y, and Cd, which is the main component of the oxide value, is a harmful element.
Since the performance is comparable to that of Ag-Ca2 alloy without using d,
The gist of the present invention is to develop an electrical contact material that is L.
銀合金中にＳｎ酸化物が存在するＡｇ−３ｎＯ系電気接
点材料は、耐火性にすぐれているが、Ｓｎの星が毛駁比
で約４％になると、Ａｇ合金中のＳｎを内部酸化するこ
とが難しくなり、Ｓｎ％が４ 、２ 屯４１．％になる
と、合金の表面に酸化スケールが発生して、酸化の進行
が大幅に阻害されてしまう。Ag-3nO electrical contact materials, in which Sn oxide is present in the silver alloy, have excellent fire resistance, but when Sn stars reach about 4% in terms of hair ratio, the Sn in the Ag alloy is internally oxidized. It becomes difficult to do this, and the Sn% is 4.2 tons, 41. %, oxide scale will occur on the surface of the alloy and the progress of oxidation will be significantly inhibited.
そこで、Ａｇ中での拡散速度の遅いＳｎにＩｎを添加し
て、拡散速度を調整することにより、内部酸化の進行に
伴なってＳｎを適当な析出酸化物粒子として成長させ、
内部酸化を成功させたのが本発明である。Therefore, by adding In to Sn, which has a slow diffusion rate in Ag, and adjusting the diffusion rate, Sn grows as appropriate precipitated oxide particles as internal oxidation progresses.
The present invention has made internal oxidation a success.
本発明において、Ａｇ合金中に含まれるＳｎの２１１は
ｉ−述した通りに４．２＋’（（驕％が下限値である。In the present invention, 211 of Sn contained in the Ag alloy is 4.2+' ((Earth% is the lower limit value) as described above.
また、Ａｇ合金中に含まれるＳｎの量が多いほどその１
耐火度は高まるが、一方では合金組織がそれだけ組にな
り、電導度もそれだけ低ドする。従って、１［導度が今
までのＡｇ−Ｃｄ０系接点材料一般のｌＡＣ３６０を越
え、かつ耐溶着性試験で溶着を生じない耐火度をＡｇ−
５ｎＯ系合金が有すればよく、このためのＳ ｎ ：ｉ
ｉは重７２比で５％未満で充分である。In addition, the larger the amount of Sn contained in the Ag alloy, the more
The fire resistance increases, but on the other hand, the alloy structure becomes more grouped and the electrical conductivity decreases accordingly. Therefore, Ag-
It is sufficient that the 5nO-based alloy has S n :i
It is sufficient that i is less than 5% in weight 72 ratio.
べ発明において、Ａ ｇ −Ｓ ｎ （４，２ｉ１／、
Ｆ＋３％〜５屯；、）５未満）系合金にＩｎを２ ｌＬ
ｒｌｉ％あるいはそれ以１−のにで添加して内部酸化す
ると１、懐合金の内部酸化は円滑かつ迅速に進行した。In the invention, A g −S n (4,2i1/,
2 lL of In to F + 3% to 5 tons;, ) less than 5) type alloy
When internal oxidation was performed by adding rli% or more, the internal oxidation of the alloy proceeded smoothly and rapidly.
一方、Ｉｎを８屯星％以上添加すると、内部酸化は勿論
円滑に直行するが、得られた合金組織がＩｎ１１１化物
によって粗になってしまうゆ
未発明のＡｇ−５ｎ（４，２重着％〜５利埴％未満）
ｒ ｎ （２！ＴＩ′＋１＞％〜８屯贋％）合金に
必要によってはｓｂを更に添加して、その電気的特性、
特に耐久性、＃溶着性を使用［１的に合ったものにする
ことができる。この場合、Ｓｂの添加賃はＳｎとの和の
３０％がＬ限値であり、３０％以にになると全く内部酸
化が不ロｆ能となる。実際には、Ｓｂの添加ｈ：は屯ｊ
迂比で０．１東賃％未満で１−記した］］的のために充
分であり、 、ｏ、ｏｔｌ 柾％以ドではＩ−記した１
−１的のために効果がなくしかも不純物とみなされるの
で、その下限値は０．０１重に％である。On the other hand, when more than 8% In is added, internal oxidation naturally proceeds smoothly, but the resulting alloy structure becomes coarse due to In111 compounds. - less than 5%)
r n (2!TI'+1>%~8tonfake%) If necessary, sb may be further added to the alloy to improve its electrical properties,
In particular, durability and weldability can be used [1]. In this case, the L limit value for the additive amount of Sb is 30% of the sum with Sn, and if it exceeds 30%, internal oxidation becomes completely ineffective. Actually, the addition of Sb h: is tunj
It is sufficient for , o, otl less than 0.1 % to be written as 1-], and 1 to be written as I- for less than 0.1 %
Since it has no effect and is considered an impurity, its lower limit is 0.01%.
以下、実施例により、未発明の効果について述べる。Hereinafter, the effects of this invention will be described with reference to Examples.
実施例
屯φ比でＳｎ４．２％−Ｉｎ３％−残部Ａｇの合金を作
り、これを圧延鍛造して２■の板とし、酸素気圧１．５
気圧下で６５０℃で７２時間内部酸化した結果、
硬 度 ＨＲＦ ８１道導度 ｌＡ
Ｃ３７２
比 毛 １０の電気接点用合
金材を得た。Example An alloy of 4.2% Sn, 3% In, and the balance Ag was made with a ton φ ratio, and this was rolled and forged to form a 2-inch plate, and the oxygen pressure was 1.5.
As a result of internal oxidation at 650℃ under atmospheric pressure for 72 hours, hardness HRF 81 conductivity lA
An alloy material for electrical contacts of C372 Specification 10 was obtained.
本発明の実施例による［−記合金と、従来のＡｇ−Ｃｄ
系の合金を内部酸化したものを、耐溶着性について比較
試験したところ、第１表の通りの結果を得た。The alloy according to the embodiment of the present invention and the conventional Ag-Cd
Comparative tests were conducted on welding resistance of internally oxidized alloys, and the results shown in Table 1 were obtained.
試験条件
電 圧 Ｄ、Ｃ、２００Ｖ初期電流
５７００Ａ
接触圧力 ２００ｇ
５組の試ネ１につき各２０回づつ測定した。Test conditions Voltage D, C, 200V initial current
5700A Contact pressure 200g Measurements were made 20 times for each of 5 sets of test pieces.
第１表
材 ネ゛ｌ 溶着回数１）Ａ
ｇ−ｃｄｌ ５％ ４２）Ａ
ｇ−９ｎ ４．２％−１■３％ ０試
ネ′１番号２）は本発明品であり、上記材料を内部酸化
したものであり、試料の大きさは外＃￥６ｓｍＸ厚さ２
ｍｍであったφ
以１−の通り 本発明にかかる材料は耐溶着性に優れた
゛心気接点材料であることが分る。1st surface material Nail Number of welding 1)A
g-cdl 5% 42)A
g-9n 4.2%-1■3% 0 Test Ne'1 No. 2) is a product of the present invention, which is made by internally oxidizing the above material, and the sample size is external #¥6sm x thickness 2
As shown in 1-1 below, the material according to the present invention is an air-to-air contact material with excellent welding resistance.
特 許 出 願 人 中外′心気［業株式会社代 理
人 弁理士 浅 賀 −夫 ）・ｌ・ −
−」Patent applicant: Chugai's Shinki [Representative of Patent attorney, Asaga-husband]・l・-
-”
Claims (1)
量％〜５重量％未満とＩｎを２重量％〜８重量％とを含
み、残部Ａｇからなる電気接点材料。An electrical contact material made of a silver/oxide alloy and containing 4.2% to less than 5% by weight of Sn and 2% to 8% by weight of In as solute metals, with the balance being Ag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61174388A JPS62196343A (en) | 1986-07-24 | 1986-07-24 | Electric contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61174388A JPS62196343A (en) | 1986-07-24 | 1986-07-24 | Electric contact material |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56081896A Division JPS5763650A (en) | 1981-05-30 | 1981-05-30 | Electrical contact material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62196343A true JPS62196343A (en) | 1987-08-29 |
Family
ID=15977734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61174388A Pending JPS62196343A (en) | 1986-07-24 | 1986-07-24 | Electric contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62196343A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007020006A1 (en) * | 2005-08-12 | 2007-02-22 | Umicore Ag & Co. Kg | Use of indium-tin mixed oxide for silver-based materials |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5086692A (en) * | 1973-12-06 | 1975-07-12 | ||
| JPS50133117A (en) * | 1974-04-10 | 1975-10-22 | ||
| JPS5140594A (en) * | 1975-08-07 | 1976-04-05 | Sumitomo Electric Industries | |
| JPS54128930A (en) * | 1978-03-22 | 1979-10-05 | Chugai Electric Ind Co Ltd | Electric contact material composed of silverrtin oxide based alloy and other silverrmetal oxide alloy |
| JPS5616639A (en) * | 1979-07-16 | 1981-02-17 | Tanaka Kikinzoku Kogyo Kk | Ag-oxide electric contact material |
| JPS5681896A (en) * | 1979-12-10 | 1981-07-04 | Nippon Hamondo Kk | Multiplex keying device for electronic musical instrument |
| JPS5763650A (en) * | 1981-05-30 | 1982-04-17 | Chugai Electric Ind Co Ltd | Electrical contact material |
-
1986
- 1986-07-24 JP JP61174388A patent/JPS62196343A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5086692A (en) * | 1973-12-06 | 1975-07-12 | ||
| JPS50133117A (en) * | 1974-04-10 | 1975-10-22 | ||
| JPS5140594A (en) * | 1975-08-07 | 1976-04-05 | Sumitomo Electric Industries | |
| JPS54128930A (en) * | 1978-03-22 | 1979-10-05 | Chugai Electric Ind Co Ltd | Electric contact material composed of silverrtin oxide based alloy and other silverrmetal oxide alloy |
| JPS5616639A (en) * | 1979-07-16 | 1981-02-17 | Tanaka Kikinzoku Kogyo Kk | Ag-oxide electric contact material |
| JPS5681896A (en) * | 1979-12-10 | 1981-07-04 | Nippon Hamondo Kk | Multiplex keying device for electronic musical instrument |
| JPS5763650A (en) * | 1981-05-30 | 1982-04-17 | Chugai Electric Ind Co Ltd | Electrical contact material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007020006A1 (en) * | 2005-08-12 | 2007-02-22 | Umicore Ag & Co. Kg | Use of indium-tin mixed oxide for silver-based materials |
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