JPS59189511A - Contact - Google Patents
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- Publication number
- JPS59189511A JPS59189511A JP5664884A JP5664884A JPS59189511A JP S59189511 A JPS59189511 A JP S59189511A JP 5664884 A JP5664884 A JP 5664884A JP 5664884 A JP5664884 A JP 5664884A JP S59189511 A JPS59189511 A JP S59189511A
- Authority
- JP
- Japan
- Prior art keywords
- grease
- corrosion
- hydrogen sulfide
- contacts
- contact
- 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
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- Coupling Device And Connection With Printed Circuit (AREA)
- Switches With Compound Operations (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】
産業上の利用分野
本発明は、電気接点に関するもので、さらに詳しくは接
点が腐食性の雰囲気にさらされた場合に、腐食による接
触抵抗の増加を少なくするだめのグリースの改良に関す
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to electrical contacts, and more particularly to a grease that reduces the increase in contact resistance due to corrosion when the contacts are exposed to a corrosive atmosphere. Regarding improvements.
従来例の構成とその問題点
従来、接点には多くの種類のグリースが用いられている
。しかし、これらのグリースは主に電気的な特性および
耐摩耗性に重点が置かれて使用されており、耐腐食性に
ついて最近になって少し検討されてきているのが現状で
ある。この腐食性雰囲気中での耐久性については、接点
に塗布するグリース自体を弱酸性にし、亜硫酸ガスや硫
化水素ガスをグリース中に入りにくクシ、耐腐食性を増
す方向が考えられている。しかしグリース自体が酸性で
あることは、グリース自体による接点の腐食性も考慮す
る必要があり、相反する問題を含んでいた。Conventional Structure and Problems Conventionally, many types of grease have been used for contacts. However, these greases are used mainly with emphasis on their electrical properties and wear resistance, and their corrosion resistance has recently been somewhat studied. In order to improve durability in this corrosive atmosphere, it is considered that the grease applied to the contacts should be made slightly acidic to prevent sulfur dioxide gas and hydrogen sulfide gas from entering the grease, thereby increasing its corrosion resistance. However, since the grease itself is acidic, it is necessary to consider the corrosivity of the contacts due to the grease itself, which involves contradictory problems.
発明の目的
本発明は、腐食性雰囲気にさらされたときにも接触抵抗
の増加のない接点を提供するものである。OBJECTS OF THE INVENTION The present invention provides a contact that does not increase contact resistance even when exposed to a corrosive atmosphere.
発明の構成
本発明の接点は、接触部にフッ素化合物を含むグリース
を介在させたものである。Structure of the Invention The contact of the present invention has a contact portion interposed with grease containing a fluorine compound.
実施例の説明
図は表に示すような各種のグリースを塗布した銀メツキ
接点の硫化水素ガス雰囲気中での腐食量（相対値）の経
時変化を示す。なお、この実験条件は、温度３０１：、
相対湿度６０チで、放射性同位元素５−３６でラベルさ
れた硫化水素濃度１０ｐｐｍとした。The explanatory diagrams of the examples show changes over time in the amount of corrosion (relative values) of silver-plated contacts coated with various types of grease as shown in the table in a hydrogen sulfide gas atmosphere. Note that this experimental condition is a temperature of 301:
The relative humidity was 60 degrees and the concentration of hydrogen sulfide labeled with radioisotope 5-36 was 10 ppm.
図から明らかなように、グリースを塗布した場合Ａ、Ｂ
、Ｃ，Ｅは、グリースの無い場合Ｘに比べ硫化水素によ
る腐食速度は小さくなり、かつその増加（伐時間に対し
て直線的に増加することがわかる。このことからグリー
ス中の硫化水素の透過ｈ１．が腐食を律速すると考えら
れる。これを確認するため、種々のグリース自体の硫化
水素の透過係数を求めてみた。その結果の一部を次表に
示す。As is clear from the figure, when grease is applied, A and B
, C, and E, the corrosion rate due to hydrogen sulfide is lower than that of X when there is no grease, and it increases linearly with the cutting time. h1. is thought to be the rate-limiting factor for corrosion. To confirm this, we determined the hydrogen sulfide permeability coefficients of various greases themselves. Some of the results are shown in the table below.
この表に示した硫化水素の透過係数が大きい・ぐラフイ
ン系グ′リースＡを塗布した接点は、図から明らかなよ
うに、最も大きい腐食速度を示し、次いで透過係数が次
に大きい）くラフイン系グリースＢを塗布した接点は中
程度の腐食速度、最も透過係数が小さい７ノ素系グリー
スＥを塗布した接点は最も小さい腐食速度を示している
。As is clear from the figure, the contacts coated with gruff-in grease A, which has a high hydrogen sulfide permeability coefficient, show the highest corrosion rate, followed by the rough-in grease with the next highest permeability coefficient. The contacts coated with Grease B have a medium corrosion rate, and the contacts coated with Grease E, which has the lowest permeability coefficient, have the lowest corrosion rate.
これらの実験の結果から、腐食性雰囲気の硫化水素によ
る接点の腐食は、同等の厚みのグリースを塗布した場合
、そのグリース自体の硫化水素の透過速度によることを
見出しだ。From the results of these experiments, it was found that corrosion of contacts due to hydrogen sulfide in a corrosive atmosphere is due to the hydrogen sulfide permeation rate of the grease itself when grease of the same thickness is applied.
この結果をもとに、種々のグリースについて、硫化水素
の透過係数を測定した結果、フルオロシリコーン、フル
オロカーボン油、フロロエステル。Based on this result, we measured the permeability coefficient of hydrogen sulfide for various greases and found that fluorosilicone, fluorocarbon oil, and fluoroester.
フン素変性パラフィン油、フッ素変性エステル油。Fluorine-modified paraffin oil, fluorine-modified ester oil.
フッ素樹脂などのフッ素化合物をグリース成分として含
有するフッ素系のグリースＥは、パラフィン系グリース
Ａ、Ｂ、Ｃやシリコーン系グリースＤに比べて１〜３オ
ーダ低い硫化水素の透過係数を示すことを見出した。It was discovered that fluorine-based grease E, which contains fluorine compounds such as fluororesin as a grease component, exhibits a hydrogen sulfide permeability coefficient that is 1 to 3 orders of magnitude lower than paraffin-based greases A, B, and C and silicone-based grease D. Ta.
このフッ素系のグリース（図のＥ）とパラフィン系のグ
リース３種類（図のＡ、Ｂ、Ｃ）を塗布した銀メツキ接
点を用い、硫化水素濃度２ ｐｐｍ 。Using silver-plated contacts coated with this fluorine-based grease (E in the figure) and three types of paraffin-based grease (A, B, and C in the figure), the hydrogen sulfide concentration was 2 ppm.
温度３Ｑ℃の条件下に１力月間放置して腐食量を比較し
た。その結果、パラフィン系グリースＡ。The amount of corrosion was compared after being left for one month at a temperature of 3Q°C. As a result, paraffin grease A.
ＢおよびＣを塗布した場合は２５μｙ／ｃ４は１８７１
ｆ！Ａｙｌ、 １０ ／ｌ ｙ／Ｃ疏の腐食−量を示
した。一方、７ノ素系のグリースを塗布した場合は画表
のＥで０．８ ／１９／ｃｔｄ、’ｊた７０ロエステル
とリチウム石けんからなるグリースを塗布した場合ｏ、
１μ７／ｃ７７と格段に少ない腐食量となり、耐腐食性
は大きく向」ニした。When applying B and C, 25μy/c4 is 1871
f! Ayl, 10/ly/C corrosion amount is shown. On the other hand, when a 7 element based grease is applied, E on the diagram is 0.8/19/ctd, and when a grease consisting of 70 ester and lithium soap is applied, the result is o.
The amount of corrosion was significantly reduced to 1μ7/c77, and corrosion resistance was greatly improved.
発明の効果
以上のように、本発明によれば、接点の腐食による接触
不良を大幅に減少させることができる。Effects of the Invention As described above, according to the present invention, contact failures due to corrosion of contacts can be significantly reduced.
図は銀メツキ接点の硫化水素雰囲気中での腐食量の経時
変化を示す図である。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名１８
苗 −The figure shows the change over time in the amount of corrosion of silver-plated contacts in a hydrogen sulfide atmosphere. Name of agent: Patent attorney Toshio Nakao and 1 other person18
Seedling −
Claims (1)
リースを介在してなる接点。A contact made of grease containing a fluorine compound as a grease component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5664884A JPS59189511A (en) | 1984-03-23 | 1984-03-23 | Contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5664884A JPS59189511A (en) | 1984-03-23 | 1984-03-23 | Contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59189511A true JPS59189511A (en) | 1984-10-27 |
Family
ID=13033172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5664884A Pending JPS59189511A (en) | 1984-03-23 | 1984-03-23 | Contact |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59189511A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8067344B2 (en) | 2004-06-25 | 2011-11-29 | Nok Kluber Co., Ltd. | Lubricating grease composition |
-
1984
- 1984-03-23 JP JP5664884A patent/JPS59189511A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8067344B2 (en) | 2004-06-25 | 2011-11-29 | Nok Kluber Co., Ltd. | Lubricating grease composition |
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