JPS5848968B2 - Electrical contact materials for weak currents - Google Patents
Electrical contact materials for weak currentsInfo
- Publication number
- JPS5848968B2 JPS5848968B2 JP50070660A JP7066075A JPS5848968B2 JP S5848968 B2 JPS5848968 B2 JP S5848968B2 JP 50070660 A JP50070660 A JP 50070660A JP 7066075 A JP7066075 A JP 7066075A JP S5848968 B2 JPS5848968 B2 JP S5848968B2
- Authority
- JP
- Japan
- Prior art keywords
- electrical contact
- silver
- palladium
- contact
- resistance
- 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
Landscapes
- Contacts (AREA)
- Conductive Materials (AREA)
Description
【発明の詳細な説明】
本発明は、弱電流用電気接点の素材として用いる銀一パ
ラジウムー金系の弱電流用電気接点材料に係る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a silver-palladium-gold based electrical contact material for weak currents, which is used as a material for electrical contacts for weak currents.
一般に弱電流用電気接点に要求される条件としては、接
触抵抗が低く且つ安定していること、硬度が高いこと、
耐摩耗性・耐粘着性・耐放電消耗性・耐蝕性に優れてい
ることなどが挙げられる。In general, the conditions required for electrical contacts for low current are low and stable contact resistance, high hardness,
Examples include excellent abrasion resistance, adhesion resistance, discharge wear resistance, and corrosion resistance.
従来これらの条件を考慮して弱電流用電気接点の多くは
銀−パラジウム系合金にて作られ、使用されてきた。Conventionally, in consideration of these conditions, many electrical contacts for weak currents have been made and used from silver-palladium alloys.
しかしながらこの銀−パラジウム系合金の電気接点は、
接触抵抗が低く且つ安定腰耐蝕性に優れているが、耐放
電消耗性に劣っていた。However, this silver-palladium alloy electrical contact is
It had low contact resistance and excellent stability and corrosion resistance, but was inferior in discharge and wear resistance.
本発明は、以上の点に鑑み、銀−パラジウム系合金より
なる接点材料の特性をさらに改良すべく鋭意攻究の結果
、銀−パラジウム系合金の接点材料と同様に耐蝕性に優
れ、接触抵抗が低く且つ安定していて、しかも銀一パラ
ジウム系合金の接点材料よりも硬度が高く、耐放電消耗
性に優れた弱電流用電気接点材料として銀一パラジウム
ー金系合金の接点材料を見い出したものである。In view of the above points, the present invention was developed as a result of intensive research to further improve the characteristics of a contact material made of a silver-palladium alloy. We have discovered a contact material made of a silver-palladium-gold alloy as a low-current electrical contact material that is low and stable, has higher hardness than contact materials made of a silver-palladium alloy, and has excellent discharge wear resistance. be.
本発明の電気接点材料は、銀中に重量比でパラジウム２
０〜６０％と、金１〜２０％とを溶解せしめて銀−パラ
ジウムー金系合金となしたものである。The electrical contact material of the present invention has a weight ratio of 2 palladium in silver.
A silver-palladium-gold alloy is obtained by dissolving 0 to 60% gold and 1 to 20% gold.
銀一パラジウム合金に金を添加することによって得られ
る最も大きな効果は、硬度が高くなり、耐放電消耗性が
蓄しく向上することである。The most significant effect obtained by adding gold to a silver-palladium alloy is that the hardness increases and the discharge wear resistance improves significantly.
単に銀とパラジウムのみからなる銀合金は、耐放電消耗
性が劣っている為、弱電流用接点材料としては満足のい
くものとはいえなかった。Silver alloys consisting solely of silver and palladium have poor discharge resistance and are therefore not satisfactory as contact materials for weak currents.
然して本発明の弱電流用電気接点材料を前述の如き或分
組或に限定した理由について説明すると、金１％以下で
は銀−パラジウム合金と同様に放電消耗量が大きくなり
、２０％以上では弱電流用電気接点としての耐放電消耗
特性がそれ以上めだった向上はなく、コストが高くなる
ばかりだからである。However, to explain the reason why the electrical contact material for weak current of the present invention is limited to a certain group as mentioned above, if the gold content is less than 1%, the amount of discharge consumption becomes large like a silver-palladium alloy, and if it is more than 20%, the electrical contact material for weak current This is because there is no further significant improvement in the discharge and wear resistance characteristics of the contact, and the cost only increases.
またパラジウム２０％以下では耐蝕性が著しく劣化し、
６０％以上では耐放電消耗性が著しく劣悪となるからで
ある。Furthermore, if the palladium content is less than 20%, the corrosion resistance will deteriorate significantly.
This is because if it exceeds 60%, the discharge wear resistance becomes extremely poor.
次に本発明による電気接点材料の効果を一層明瞭ならし
める為に、具体的な電気接点の製作実施例とその試験結
果について詳述する。Next, in order to further clarify the effects of the electrical contact material according to the present invention, specific manufacturing examples of electrical contacts and their test results will be described in detail.
下表のＡ１〜履５に示すものか本発明の電気接点材料よ
り或る実施品で、これらは溶解鋳造の上、固定側接点は
伸線加工にて０．４５φＴＬｒＩＬの線にし、次いでヘ
ッディングを行い１．０φｍｍＸ０．３ｔｍｍの板とし
、これを黄銅台座にろう付し、可動側接点は伸線加工に
て０．７φ關の線にし、これをりん青銅板に抵抗溶着し
た後、■．５φｍｍＸ Ｏ．１ ５ ｔｉｎに或形した
電気接点である。Items A1 to 5 in the table below are products made from the electrical contact material of the present invention, and after melting and casting, the fixed side contacts are made into wires of 0.45φTLrIL by wire drawing, and then the headings are This was made into a 1.0φmm x 0.3tmm plate, which was brazed to a brass pedestal, and the movable contact was made into a 0.7φ wire by wire drawing, and after resistance welding to the phosphor bronze plate, ■. 5φmm×O. It is an electrical contact shaped like 15 tin.
これら実施品をＡ６に示す従来品と下記の試験条件にて
比較試験したところ下表の右欄に示すような結果を得た
。When these products were compared with the conventional product shown in A6 under the following test conditions, the results shown in the right column of the table below were obtained.
試験条件 電 圧 ６Ｖ（ＰＣ） 電 流 ４ ０ ｍ Ａ 負 荷 抵抗負荷＋誘導負荷峯 通電時間 可動接点 接′。Test condition Voltage 6V (PC) Current 40 mA Load Resistive load + Inductive load Energization time Movable contact Contact'.
１法 固定接点接点間隙
接触力
開閉頻度
試験回数
６．５（±１． ０ ） ｍｓｅｃ
１、５φｍ．ｍＸ Ｏ． １ ５ ｔ ｍｍｉ．ｏφｍ
ｍＸ ０． ３ ｔ ｉｎ
５０μ
５０２
５０回／ｓｅｃ
３００万回
上記の表で明らかなように本発明の接点材利にて作られ
たＡ１〜厘５の電気接点は、従来の銀一パラジウム系合
金よりなる接点材料にて作られたＡ６の電気接点に比し
、著しく放電消耗量が少く、はるかに耐放電消耗性に優
れている。Method 1 Fixed contact Contact gap Contact force Opening/closing frequency Test number 6.5 (±1.0) msec 1, 5φm. mX O. 1 5 t mmi. oφm
mX 0. 3t in 50μ 502 50 times/sec 3 million times As is clear from the above table, the electrical contacts A1 to A5 made using the contact material of the present invention are different from the conventional contacts made of silver-palladium alloy. Compared to A6 electrical contacts made of A6 material, the amount of discharge wear and tear is significantly smaller, and the discharge wear resistance is far superior.
また接触抵抗についても同様に低く且つ試験期間中ばら
つきが少く安定している。Furthermore, the contact resistance is similarly low and stable with little variation during the test period.
然して前記黒１〜Ａ６の各弱電流用電気接点の素材の硬
さを常温より９００℃までの温度域で測定したところ第
１図のグラフに示すような結果を得た。However, when the hardness of the material of each of the weak current electrical contacts of Black 1 to A6 was measured in a temperature range from room temperature to 900 DEG C., the results shown in the graph of FIG. 1 were obtained.
この第１図のグラフで明らかなように本発明の接点材料
にて作られたＡ１〜Ａ５の電気接点は、常温より７００
℃程度の温度域では従来の慮６の電気接点に比し硬度が
高く、また７００℃以上の高温度域においても全て硬度
が高いものであり、放電消耗量の少ない原因となってい
る。As is clear from the graph in FIG.
In the temperature range of about 100°C, the hardness is higher than that of the conventional electrical contact of Example 6, and even in the high temperature range of 700°C or higher, the hardness is high, which is the reason for the small amount of discharge consumption.
然してまた前記Ａ１〜Ａ６の各弱電流用電気接点の素材
を硫化アンモンの飽和蒸気中に３０日間放置して腐蝕試
験を行ったところ、各素材の表面は側ら変色せず、いず
れも腐食されなかった。However, when we conducted a corrosion test by leaving the materials of each of the weak current electrical contacts A1 to A6 in saturated ammonium sulfide vapor for 30 days, the surface of each material did not change color from the sides, and none of them were corroded. Ta.
このように本発明の弱電流用電気接点材料は、従来の銀
−パラジウム系の弱電流用電気接点材料と同等の耐蝕性
及び安定した低い接触抵抗を有し、特に硬度ならびに耐
放電消耗性については従来の銀一パラジウム系の弱電流
用電気接点材料に比し格段に優れているので、弱電流用
接点材料としては従来の銀−パラジウム系の弱電流用電
気接点材料にとって代わることのできる画期的なもので
あるといえる。As described above, the electrical contact material for low current of the present invention has corrosion resistance and stable low contact resistance equivalent to that of conventional silver-palladium electrical contact materials for weak current, and in particular, it has better hardness and discharge wear resistance than conventional electrical contact materials. It is significantly superior to the silver-palladium based electrical contact material for weak currents, so it is an epoch-making material that can replace the conventional silver-palladium based electrical contact materials for weak currents. It can be said that there is.
図は本発明の弱電流用電気接点材料と従来の銀パラジウ
ム系合金の弱電流用電気接点材料との常温から９００℃
までの温度域における硬さの測定結果を示すグラフであ
る。The figure shows the electrical contact material for weak current of the present invention and the conventional electrical contact material for weak current made of silver-palladium alloy at temperatures ranging from room temperature to 900°C.
It is a graph showing the measurement results of hardness in a temperature range up to
Claims (1)
と、残部銀よりなる弱電流用電気接点材料。1 1-20% gold and 20-60% palladium by weight
An electrical contact material for weak currents consisting of 100% silver, and the balance being silver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50070660A JPS5848968B2 (en) | 1975-06-11 | 1975-06-11 | Electrical contact materials for weak currents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50070660A JPS5848968B2 (en) | 1975-06-11 | 1975-06-11 | Electrical contact materials for weak currents |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS51145855A JPS51145855A (en) | 1976-12-15 |
| JPS5848968B2 true JPS5848968B2 (en) | 1983-11-01 |
Family
ID=13438025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50070660A Expired JPS5848968B2 (en) | 1975-06-11 | 1975-06-11 | Electrical contact materials for weak currents |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5848968B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11276512B2 (en) | 2018-12-13 | 2022-03-15 | Autonetworks Technologies, Ltd. | Wiring member |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58107450A (en) * | 1981-12-18 | 1983-06-27 | Tanaka Kikinzoku Kogyo Kk | Material for slide contact |
| JP5329773B2 (en) * | 2007-05-31 | 2013-10-30 | コーア株式会社 | Chip resistor |
-
1975
- 1975-06-11 JP JP50070660A patent/JPS5848968B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11276512B2 (en) | 2018-12-13 | 2022-03-15 | Autonetworks Technologies, Ltd. | Wiring member |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS51145855A (en) | 1976-12-15 |
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