JPS58161738A - Electrical contact material - Google Patents
Electrical contact materialInfo
- Publication number
- JPS58161738A JPS58161738A JP57043303A JP4330382A JPS58161738A JP S58161738 A JPS58161738 A JP S58161738A JP 57043303 A JP57043303 A JP 57043303A JP 4330382 A JP4330382 A JP 4330382A JP S58161738 A JPS58161738 A JP S58161738A
- Authority
- JP
- Japan
- Prior art keywords
- electrical contact
- weight
- contact material
- resistance
- 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
Landscapes
- Manufacture Of Switches (AREA)
- Contacts (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は、電気接点材料に関するものである。[Detailed description of the invention] The present invention relates to electrical contact materials.
従来より内部酸化法により製作した電気接点材料として
は、主として銀酸化カドミウムが、用いられてきた。銀
酸化カドミウムは、耐消耗特性。Conventionally, silver cadmium oxide has been mainly used as an electrical contact material manufactured by an internal oxidation method. Silver cadmium oxide has wear-resistant properties.
耐溶着特性、低接触抵抗特性等の優れた接点性能を有す
るが、最近これを上まわる性能の接点材料を開発しよう
とする動きも盛んである。このよう（１）
な動向の中から生まれてきた電気接点材料として、銀−
錫系、銀−インジウム系、績−ビスマス系。It has excellent contact performance such as anti-welding properties and low contact resistance properties, but recently there has been an active effort to develop contact materials with superior performance. Silver is an electrical contact material that has emerged from these (1) trends.
Tin-based, silver-indium-based, metal-bismuth-based.
級−亜鉛系等様々なものが挙げられるが、これらの電気
接点材料は、耐消耗特性、耐溶着特性、低接触抵ｍ特性
等のいずれか一面では極だった優れた性能を有するもの
の総合的な接点特性を考慮した場合には銀酸化カドミウ
ムに及ばないものであ発すべく鋭意考究の結果、満足で
きる電気接点材料を見い出したものである。There are various types of electrical contact materials such as zinc-based materials, but these electrical contact materials have excellent performance in one aspect, such as wear resistance, welding resistance, and low contact resistance characteristics, but they are not comprehensive. As a result of intensive research, we have found a satisfactory electrical contact material that is not as good as silver cadmium oxide in terms of contact characteristics.
本発明の電気接点材料の一つは、ビスマス０．５〜１０
重量％とマンガン１〜７重量％と、残部銀から成る材料
であって且つ内部酸化されているものである。One of the electrical contact materials of the present invention is bismuth 0.5 to 10
% by weight, 1 to 7% by weight of manganese, and the remainder silver, and is internally oxidized.
本発明の電気接点材料の他の一つは、ビスマス０．５〜
１０重量％とマンガン１〜７重量％と、希土類硼化物、
金属炭化物の少なくとも一種をｏ、ｏｉ〜３重量％と、
残部銀から成る材料であって、且（２）
つ内部酸化されているものである。Another electrical contact material of the present invention is bismuth 0.5~
10% by weight, 1-7% by weight of manganese, rare earth boride,
At least one metal carbide is o, oi ~ 3% by weight,
A material consisting of the remainder silver and (2) internally oxidized.
本発明の電気接点材料に於いて、ビスマス０．５未満で
は銀量が多（なり、低接触抵抗特性は得られるものの耐
溶着特性、耐消耗特性に関しては良好な結果が得られず
、またビスマス１０重量％を超え、マンガン７重量％を
超えると合金表面に厚い酸化バンドができ、内部酸化が
困難となり、接触抵抗も上昇するからであって、ビスマ
ス０．５〜１０重量％、マンガン１〜７重量％の範囲内
では、耐溶着特性、耐消耗特性、低接触抵抗特性の充分
満足できる電気接点材料が得られるものである。In the electrical contact material of the present invention, if the amount of bismuth is less than 0.5, the amount of silver will be too high, and although low contact resistance characteristics can be obtained, good results will not be obtained in terms of welding resistance and wear resistance. If the content exceeds 10% by weight and manganese exceeds 7% by weight, a thick oxidation band will form on the alloy surface, making internal oxidation difficult and increasing the contact resistance. Within the range of 7% by weight, an electrical contact material with sufficiently satisfactory welding resistance, wear resistance, and low contact resistance characteristics can be obtained.
さらに本発明の電気接点材料の他の一つに於いて、ビス
マス（１５〜１０重量％、マンガン１〜７重量％以外に
希土類硼化物、金属炭化物の少なくとも一種を合針２０
．０１〜３重量％添加する理由は、これらを電気接点材
料に分散させた場合、これにより得られる電気接点の表
面にアーク放電が分散し、−ケ所に放電が集中しなくな
り、放電による（３）
消耗が減少するからであって、０．０１重量％未満では
アーク放電が分散せず、３重量％を超えると逆に放電量
が多くなり、消耗量が増加するからである。Furthermore, in another electrical contact material of the present invention, at least one of rare earth boride and metal carbide is added in addition to bismuth (15 to 10% by weight and manganese 1 to 7% by weight).
．． The reason for adding 01 to 3% by weight is that when these are dispersed in the electrical contact material, arc discharge is dispersed on the surface of the resulting electrical contact, and the discharge is no longer concentrated in the areas (3). This is because consumption decreases, and if it is less than 0.01% by weight, arc discharge will not be dispersed, and if it exceeds 3% by weight, the amount of discharge will increase and the amount of consumption will increase.
次に本発明による電気接点材料の効果を明瞭ならしめる
為に、具体的な実施例と従来例について説明する。Next, in order to clarify the effects of the electrical contact material according to the present invention, specific examples and conventional examples will be described.
下記の表の左欄に示す実施例１．２の成分組成の材料を
溶解し、アトマイズ粉となした後、４００℃、４気圧、
２日間内部酸化し、この酸化アトマイズ粉を圧縮焼結し
、これを押出、引抜加工した後切断してヘングー加工し
、頭部径４φ鶴２頭高１．１鶴脚部径２．８φ鶴９脚長
１．６鶴のリベット型電気接点を得た。After melting the material having the composition of Example 1.2 shown in the left column of the table below and making it into atomized powder, it was heated at 400°C, 4 atm,
After 2 days of internal oxidation, the oxidized atomized powder was compressed and sintered, extruded and drawn, then cut and processed to form a crane with a head diameter of 4φ, 2 heads, height 1.1, and a crane with a leg diameter of 2.8φ. A 9-legged rivet-type electrical contact with a length of 1.6 cranes was obtained.
また下記の表の左欄に示す実施例３．４の成分組成の材
料の内、銀とビスマスとマンガンを溶解し、アトマイズ
粉となした後、４００’０４気圧、２日間内部酸化し、
この酸化アトマイズ粉に残りの材料であるＬａＢ６．Ｔ
ｉＣより成る平均１μの粉末を各々Ｖ形ミキサーで３時
間混合した後圧縮（４）
焼結し、これを押出、引抜加工した後切断してヘングー
加工し、頭部径４φ鶴１頭高１１ ｍ、脚部径２．８φ
鶴１脚長１．６鶴のリベット型電気接点を得た。In addition, among the materials having the composition of Example 3.4 shown in the left column of the table below, silver, bismuth, and manganese were dissolved to form an atomized powder, and then internally oxidized at 400'04 atm for 2 days.
This oxidized atomized powder contains the remaining material LaB6. T
Each powder of iC with an average size of 1μ was mixed in a V-shaped mixer for 3 hours, then compressed (4), sintered, extruded, drawn, cut and processed into a shape of a crane with a head diameter of 4φ and a height of 11cm. m, leg diameter 2.8φ
A rivet-type electrical contact with a crane leg length of 1.6 cranes was obtained.
然してこれら実施例１〜４の電気接点材料にて作ったり
ベット型電気接点と、下記の表の左横に示す従来例１．
２の成分組成の材料を実施例１゜２と同じ方法で作った
同一寸法のリベット型電気接点を下記の試験条件にて開
閉試験を行った処、下記の表の右横に示すような結果を
得起。However, the bed-type electrical contacts made using the electrical contact materials of Examples 1 to 4 and the conventional example 1 shown on the left side of the table below.
A rivet-type electrical contact of the same size made using the same method as in Example 1゜2 using the material having the component composition 2 was subjected to an opening/closing test under the following test conditions, and the results were as shown on the right side of the table below. Get up.
試験条件
電 圧 ： ＡＣｌｏｏＶ ５０Ｈｚ電
流 二 投入４０Ａ、定常１０Ａ負 荷 ：
抵抗
開閉頻度 ： ２０回／益
開閉回数 ： 溶着迄
（５）
前記の表で明らかなように実施例１〜４の電気接点材料
で作ったリベット型電気接点は、従来例１．２の電気接
点材料で作ったリベット型電気接点に比し、耐溶着特性
、耐消耗特性が遥かに優ね、接触抵抗については略同等
に低いことが判る。Test condition voltage: AClooV 50Hz voltage
Flow 2 Input 40A, steady 10A load:
Resistance switching frequency: 20 times/Number of profitable switching: Until welding (5) As is clear from the table above, the rivet type electrical contacts made with the electrical contact materials of Examples 1 to 4 are as good as the electrical contacts of Conventional Examples 1 and 2. It can be seen that the welding resistance and abrasion resistance are far superior to the rivet type electrical contacts made of the material, and the contact resistance is almost as low.
以上詳記した通り本発明の電気接点材料は、従来の電気
接点材料よりも総合的に優れた接点特性を有するので、
従来の電気接点材料にとって代わることのできる画期的
なものと云える。As detailed above, the electrical contact material of the present invention has contact characteristics that are comprehensively superior to conventional electrical contact materials.
It can be said to be an epoch-making product that can replace conventional electrical contact materials.
出願人 田中貴金属工業株式会社 （７） １８５−Applicant: Tanaka Kikinzoku Kogyo Co., Ltd. (7) 185-
Claims (1)
量％と、残部銀から成る材料であって、且つ内部酸化さ
れている電気接点材料。 ２）ビスマス０．５〜１０重量％と、マンガン１〜７重
量％と、希土類硼化物、金属炭化物の少なくとも一種を
０．０１〜３重量％と、残部銀から成る材料であって、
且つ内部酸化されている電気接点材料。[Scope of Claims] 1) An electrical contact material consisting of 0.5 to 10% by weight of bismuth, 1 to 7% by weight of manganese, and the balance silver, and which is internally oxidized. 2) A material consisting of 0.5 to 10% by weight of bismuth, 1 to 7% by weight of manganese, 0.01 to 3% by weight of at least one of rare earth boride and metal carbide, and the balance silver,
and electrical contact materials that are internally oxidized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57043303A JPS58161738A (en) | 1982-03-18 | 1982-03-18 | Electrical contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57043303A JPS58161738A (en) | 1982-03-18 | 1982-03-18 | Electrical contact material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58161738A true JPS58161738A (en) | 1983-09-26 |
Family
ID=12660019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57043303A Pending JPS58161738A (en) | 1982-03-18 | 1982-03-18 | Electrical contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58161738A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS536226A (en) * | 1976-07-07 | 1978-01-20 | Tanaka Precious Metal Ind | Composite electric contact materials |
-
1982
- 1982-03-18 JP JP57043303A patent/JPS58161738A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS536226A (en) * | 1976-07-07 | 1978-01-20 | Tanaka Precious Metal Ind | Composite electric contact materials |
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