JPS58131612A - Electric contact unit - Google Patents
Electric contact unitInfo
- Publication number
- JPS58131612A JPS58131612A JP439783A JP439783A JPS58131612A JP S58131612 A JPS58131612 A JP S58131612A JP 439783 A JP439783 A JP 439783A JP 439783 A JP439783 A JP 439783A JP S58131612 A JPS58131612 A JP S58131612A
- Authority
- JP
- Japan
- Prior art keywords
- silver
- contact device
- tungsten carbide
- plating
- plated
- 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
Landscapes
- Electroplating Methods And Accessories (AREA)
- Contacts (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 この発明は、電気接点装置に関するものである。[Detailed description of the invention] The present invention relates to an electrical contact device.
弱電流用貴金属めっき接点としては、金を用いた接点が
一般的でありさらに長寿命を要する接点には、ロジウム
が用いられている。しかし、ロジウムを用いた接点は高
価である（金の約４倍）上に初期接触抵抗が不安定で、
しかも低レベル（例えば１ｖ〜１ｗｎＡ）での開閉に参
いてプラクンパクダーと称する絶縁性の粉末を生じてＷ
Ｉ！触障害を生じるという欠点がある。そして、これら
のめつき接点は、一般的に直流において便用する場合ｋ
。Gold is commonly used as a noble metal plated contact for weak currents, and rhodium is used for contacts that require a longer life. However, contacts using rhodium are expensive (approximately four times that of gold) and have unstable initial contact resistance.
Moreover, when opening and closing at low levels (for example, 1V to 1wnA), an insulating powder called plaque is produced.
I! It has the disadvantage of causing touch problems. These plated contacts are generally used in direct current applications.
.
陽極側から電極側へ材料の移転を生じ橋絡によるｇａｓ
こよって開閉が不可能になるという欠点もある。つぎに
金にアルミナ等を分散させた複合めっき接点は、上述の
問題を解決することはできるが、この接点は、絶縁物を
分散ぜしめた接点であるため開閉時の接触抵抗が不安定
という問題がある。Gas is caused by bridging that causes material transfer from the anode side to the electrode side.
This also has the disadvantage that it cannot be opened or closed. Next, composite plated contacts made by dispersing alumina, etc. in gold can solve the above problem, but since these contacts are made of dispersed insulators, the contact resistance during opening and closing is unstable. There's a problem.
したがって、この発明の目的は、コストが安く長寿命で
しかも接触抵抗が安定な電気接点装置を提供する仁とで
ある。Therefore, an object of the present invention is to provide an electrical contact device that is low in cost, has a long life, and has stable contact resistance.
この発明の弱電流用の電気接点装置は、相対向する一対
の電気接点の一方の表面に銀めっきを施すとともに他方
の表面にタングステンカーバイド粒子を分散させた銀−
タングステンカーバイド複合めっきを施したことを特徴
とする。The electrical contact device for weak current according to the present invention has a pair of electrical contacts facing each other, one surface of which is plated with silver, and the other surface of which has silver plating with tungsten carbide particles dispersed therein.
It is characterized by tungsten carbide composite plating.
つぎに、実施例について説明する。Next, examples will be described.
固定側接点に銀めっきを行な一可動側接点に銀−タング
ステンカーバイドの複合めっきを行なって電気接点装置
を構成した。このときの銀めっきｂ組ｒ１．およびめっ
き条件を次に述べる。An electrical contact device was constructed by performing silver plating on the fixed side contact and performing silver-tungsten carbide composite plating on one movable side contact. At this time, silver plating group b r1. and plating conditions are described below.
鎖めつＩ浴組威
ＡｇＣＮ ３６１！／Ｊ
ＫＣＮ ６０ｆ／Ｊ
Ｋ２Ｃ０３１５ｆ／句
めっき条件
温度−２６℃ 電流密度−１，０Ａ／ｄｍＱ銀−タング
ステンカーバイド複合めっ龜は、王妃組成のめっき浴に
、平均粒径０．７ Ｓ ｐｍのタングステンカーバイド
粉末を混入して行なった。仁の実施例の電気接点装置を
銀めっきのみの接点装置および銀−タングステンカーバ
イドのみの接点装置と対照して開閉試験を行なった結果
を図面に示す。Chain Metsu I Bath Group AgCN 361! /J KCN 60f/J K2C0315f/Plating conditions Temperature -26℃ Current density -1,0A/dmQ silver-tungsten carbide composite plating is performed by adding tungsten with an average particle size of 0.7 S pm to a plating bath with a queen composition. This was done by mixing carbide powder. The drawings show the results of opening/closing tests conducted on the electrical contact device of Jin's example in comparison with a contact device made only of silver plating and a contact device made only of silver-tungsten carbide.
１１３ｍ＜動いて、曲ＩＩＤはこの実施例の接点装置、
曲ＩＩＥは銀めっきのみの＊ａ装置、曲線Ｖは銀−タン
グステンカーバイドのみの接点装置の特性−線を示す。113m<move, song IID is the contact device of this embodiment,
Curve IIE shows the *a device with only silver plating, and curve V shows the characteristic line of the contact device with only silver-tungsten carbide.
図面から明らかなように、この実施例の接点装置は、長
寿命で、しかも接触抵抗の安定性が銀−タングステンカ
ーバイドのみの接点装置に比べて著しく良好となってい
る。な参、開閉試験ハ、ＤＣ２０Ｖ／Ａ、開閉は抵抗負
荷、２Ｈ！で行なった０
ない、可動側接点に＃ｉミータングステンカーバイド合
めっ―を施こしているが、その逆にルでも同様の効果な
貴することができる。As is clear from the drawings, the contact device of this embodiment has a long life and has significantly better stability in contact resistance than a contact device made only of silver-tungsten carbide. Please note, opening/closing test: DC20V/A, opening/closing with resistance load, 2H! Although #i tungsten carbide alloy was applied to the movable side contact in the previous example, the same effect can be achieved by using the reverse method.
以上のよう番ζ、この発明の電気接点装置は、弱電流用
として用いる安価なめっき接点において不可欠のもので
ある接触抵抗の安定性を高め、接点の信頼性を高めると
ともに長Ｊｌ！赤化を達成することができる・また、銀
−タンゲステンカーバイド複合めっ電番こより貴トリッ
クス金属の機械的強度が向上するので責金属単−のめっ
き接点装置に比べて特に直流便用時の移転、橋ｌ＆〈よ
る−溶着粘看障書がなくなる。As described above, the electrical contact device of the present invention improves the stability of contact resistance, which is essential for inexpensive plated contacts used for weak currents, increases the reliability of the contact, and improves the long Jl. In addition, the mechanical strength of the noble trix metal is improved by silver-tungsten carbide composite plating, which makes it easier to transfer, especially when using direct current, compared to a plated contact device made of a single metal. , Bridge l&〈by - the welding adhesion notice is gone.
ｌｉ！ｉ１面はこの発明の実施例の電気接点装置の開閉
試験の結果を示す説明図である。li! The i1 side is an explanatory diagram showing the results of the opening/closing test of the electrical contact device according to the embodiment of the present invention.
Claims (1)
すとともに他方の表面にタングステンカーバイド粒子を
分散させた銀−タングステンカーバイド複合めっきを施
したことを特徴とする弱電流用の電気接点装置。An electrical contact device for weak current, characterized in that one surface of a pair of opposing electrical contacts is plated with silver, and the other surface is plated with a silver-tungsten carbide composite plating in which tungsten carbide particles are dispersed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP439783A JPS58131612A (en) | 1983-01-14 | 1983-01-14 | Electric contact unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP439783A JPS58131612A (en) | 1983-01-14 | 1983-01-14 | Electric contact unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58131612A true JPS58131612A (en) | 1983-08-05 |
| JPS6160524B2 JPS6160524B2 (en) | 1986-12-22 |
Family
ID=11583211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP439783A Granted JPS58131612A (en) | 1983-01-14 | 1983-01-14 | Electric contact unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58131612A (en) |
-
1983
- 1983-01-14 JP JP439783A patent/JPS58131612A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6160524B2 (en) | 1986-12-22 |
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