JPS648060B2 - - Google Patents
Info
- Publication number
- JPS648060B2 JPS648060B2 JP56081897A JP8189781A JPS648060B2 JP S648060 B2 JPS648060 B2 JP S648060B2 JP 56081897 A JP56081897 A JP 56081897A JP 8189781 A JP8189781 A JP 8189781A JP S648060 B2 JPS648060 B2 JP S648060B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- alloy
- silver
- oxide
- less
- 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
Links
- 239000000463 material Substances 0.000 claims description 10
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 229910001316 Ag alloy Inorganic materials 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 description 14
- 239000000956 alloy Substances 0.000 description 14
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 6
- 239000013078 crystal Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910017980 Ag—Sn Inorganic materials 0.000 description 1
- 229910000925 Cd alloy Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 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
- 238000001953 recrystallisation Methods 0.000 description 1
- 229910001923 silver oxide Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
Landscapes
- Manufacture Of Switches (AREA)
- Contacts (AREA)
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
Ag−CdO合金が広く実用化されているが、Ag−
CdO合金に他元素を添加し耐火度を高める事によ
り大電流の遮断領域に用途は広げられつつある。[Detailed description of the invention] Silver-oxide alloy produced by internal oxidation method
Although Ag-CdO alloy has been widely put into practical use, Ag-
By adding other elements to CdO alloy to increase its fire resistance, its applications are being expanded to the area of interrupting large currents.
これ等のAg−CdO系合金は、通常その酸化物
量が重量比で６〜15％含有されたものであるが、
Cdは有害元素であるのでCdを使用しない元素に
より性能が同等以上となる材料の開発が本発明の
主旨である。 These Ag-CdO alloys usually contain 6 to 15% oxide by weight, but
Since Cd is a harmful element, the purpose of the present invention is to develop a material that has the same or better performance using elements that do not use Cd.
本発明の銀・酸化物合金においても、金属成分
で主たる耐火性の酸化物である錫酸化物を多量
に、好適には６重量％以上11重量％未満含有する
ものであるが、この主たる酸化物量が有害元素で
あるCdによることなく、Snによつてまかなわれ
ていることが特徴である。 The silver/oxide alloy of the present invention also contains a large amount of tin oxide, which is the main refractory oxide in the metal component, preferably 6% by weight or more and less than 11% by weight. It is characterized by the fact that the amount of material is covered by Sn, not by Cd, which is a harmful element.
Sn酸化物は、Cd酸化物に比して、耐溶着性等
においてより優れた電気特性を有する電気接点材
料を提供するものであるが、Snを６重量％以上
11重量％未満もの多量含有するAg−Sn系合金を
そのまま内部酸化しても、合金の表面に酸化スケ
ールが発生して、合金中のSnの酸化進行は認め
られない。 Sn oxide provides an electrical contact material with better electrical properties such as welding resistance than Cd oxide.
Even if an Ag-Sn alloy containing a large amount of less than 11% by weight is internally oxidized as it is, oxidized scale will be generated on the surface of the alloy, and no progress of oxidation of Sn in the alloy will be observed.
そこで、Ag中での拡散速度が遅い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
の進行に伴い適当な析出酸化物粒子の成長があ
り、内部酸化が成功する。 Therefore, by adding In to Sn, which has a slow diffusion rate in Ag, to adjust the diffusion rate, appropriate precipitated oxide particles grow as internal oxidation progresses, and internal oxidation is successful.
上述した通りに、Snを多量に含むことが本発
明の合金の耐久性、耐溶着性を富に向上させるの
であるが、Sn量が６重量％以下では充分な耐溶
着性が合金に付与されず、Sn量が11重量％を越
えると得られる材料の硬度があまりにも高くなつ
てしまう。 As mentioned above, containing a large amount of Sn greatly improves the durability and welding resistance of the alloy of the present invention, but when the Sn content is 6% by weight or less, sufficient welding resistance is not imparted to the alloy. First, if the amount of Sn exceeds 11% by weight, the hardness of the resulting material will become too high.
また、鉄族元素の添加は、粒度調整のためと結
晶の粒界酸化の進行を防止するために添加するも
のであり、その銀に対する高温における固溶限界
から0.5重量％が上限値であり、その下限値は常
温における銀に対する固溶限界でありかつ銀合金
の再結晶速度に影響を与え得る量であつて、0.01
重量％である。 In addition, iron group elements are added to adjust the grain size and to prevent the progress of grain boundary oxidation of crystals, and the upper limit is 0.5% by weight due to the solid solubility limit for silver at high temperatures. The lower limit is the solid solubility limit for silver at room temperature and is an amount that can affect the recrystallization rate of the silver alloy, and is 0.01
Weight%.
SnのAg中での完全内部酸化を果すために添加
されるInの量は、２重量％以上であれば効果があ
るが、内部酸化を早めるためにInが６重量％を越
えることが好適であり、Inの量が11重量％を越え
ると得られる材料が脆くなるので、11重量％以下
であるのが好ましい。 In order to achieve complete internal oxidation of Sn in Ag, it is effective if the amount of In added is 2% by weight or more, but it is preferable that In exceeds 6% by weight to accelerate internal oxidation. If the amount of In exceeds 11% by weight, the resulting material becomes brittle, so it is preferably 11% by weight or less.
以下、実施例により、本発明の効果について述
べる。 Hereinafter, the effects of the present invention will be described with reference to Examples.
実施例
重量比でSn6％、In7％、Ni0.3％、残部Agの合
金を作り、これを圧延鍛造して２mmの板とし、酸
素気圧1.5気圧で650℃、70時間内部酸化して、
Ag中のSnが完全に内部酸化された銀・Sn酸化物
合金の電気接点材料を得た。合金の内部は針状結
晶組織となつた。これを径６mmで打抜いて、外径
６mm×厚さ２mmのデイスク型接点とした。Example: An alloy of 6% Sn, 7% In, 0.3% Ni, and the balance Ag was made by weight, rolled and forged into a 2 mm plate, and internally oxidized at 650°C for 70 hours at 1.5 atmospheres of oxygen.
A silver-Sn oxide alloy electrical contact material in which Sn in Ag was completely internally oxidized was obtained. The interior of the alloy had an acicular crystal structure. This was punched out to a diameter of 6 mm to obtain a disc-shaped contact with an outer diameter of 6 mm and a thickness of 2 mm.
しかして、本発明の上記の実施例による合金
と、従来のAg−Cd系の合金（Ag−Cd15％）を
内部酸化したものを、耐溶着性について次の条件
により比較試験をしたところ、第１表のような結
果を得た。 When the alloy according to the above embodiment of the present invention and the internally oxidized conventional Ag-Cd alloy (Ag-Cd 15%) were tested for welding resistance under the following conditions, it was found that 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
なお、それぞれ５組の試料につき、各20回づつ
測定した。Test conditions Voltage: DC200V Initial current: 5700A Contact pressure: 200g Each of the five sets of samples was measured 20 times each.
第 １ 表
材 料 溶着回数
１ Ag−Cd15％ ４
２ Ag−Sn6％−In7％−Ni0.3％ ０
以上のように、本発明にかかる材料は耐溶着性
に優れた電気接点材料であることが認められた。 Table 1 Material Number of welding 1 Ag-Cd15% 4 2 Ag-Sn6%-In7%-Ni0.3% 0 As described above, the material according to the present invention is an electrical contact material with excellent welding resistance. was recognized.
Claims (1)
％を越え11重量％以下のInと、0.01重量％以上0.5
重量％以下の鉄族元素と、残部銀とからなる銀合
金を内部酸化した電気接点材料。1 Sn of 6% to less than 11% by weight, In of more than 6% to 11% by weight, and 0.01% to 0.5% by weight
An electrical contact material made by internally oxidizing a silver alloy consisting of less than % by weight of iron group elements and the balance being silver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56081897A JPS5763651A (en) | 1981-05-30 | 1981-05-30 | Electrical contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56081897A JPS5763651A (en) | 1981-05-30 | 1981-05-30 | Electrical contact material |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13174073A Division JPS5526176B2 (en) | 1973-07-20 | 1973-11-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5763651A JPS5763651A (en) | 1982-04-17 |
| JPS648060B2 true JPS648060B2 (en) | 1989-02-13 |
Family
ID=13759223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56081897A Granted JPS5763651A (en) | 1981-05-30 | 1981-05-30 | Electrical contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5763651A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007012570A (en) * | 2005-07-04 | 2007-01-18 | Tanaka Kikinzoku Kogyo Kk | Ag-oxide-based electrical contact material, relay using the same, AC general-purpose relay, automotive relay |
-
1981
- 1981-05-30 JP JP56081897A patent/JPS5763651A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5763651A (en) | 1982-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3933486A (en) | Silver-metal oxide composite and method of manufacturing the same | |
| JPS639007B2 (en) | ||
| CA1133285A (en) | Electrical contact materials of internally oxidized ag-sn-bi alloy | |
| JPH04311543A (en) | Ag-sno-ino electrical contact material and production thereof | |
| JPS648060B2 (en) | ||
| JPS63203738A (en) | Cu alloy for relay and switch | |
| JPH0114301B2 (en) | ||
| US2418710A (en) | Electric contact and brush | |
| US3846125A (en) | Gold alloy composition | |
| JPS5850305B2 (en) | Denkisetsutenzairiyo | |
| US3799771A (en) | Electrical contact material containing silver,cadmium oxide,tin and nickel | |
| US4380528A (en) | Silver-based alloy | |
| JPS6031890B2 (en) | Electrical contact material and its manufacturing method | |
| JPS5850304B2 (en) | Denkisetsutenzairiyo | |
| JPH02423B2 (en) | ||
| JPS6317898B2 (en) | ||
| US3383204A (en) | Nickel-lithium alloy preparation | |
| US2197393A (en) | Electric contact | |
| US2161576A (en) | Silver base alloy | |
| US2548164A (en) | Electrical contact | |
| US3799770A (en) | Electrical contact material containing silver,cadmium oxide,tin and cobalt | |
| SU555159A1 (en) | Silver based alloy | |
| JPS5935646A (en) | Electrical contact material | |
| JPH06136473A (en) | Internally oxidized electrical contact material of ag-sn alloy | |
| JPH06136472A (en) | Internally oxidized electrical contact material of ag-sn-in alloy |