JPS5918524A - Electric contact material - Google Patents

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】 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の一つ
として銀−酸化アンチモンが用いられてきた。銀−酸化
アンチモンは、電気伝導度が高く接触抵抗が低く耐溶着
性の優れた接点性能を有す（１） るが、アークによる消耗が大きく耐電圧、耐絶縁性に劣
るものである。Silver-antimony oxide has conventionally been used as one of the electrical contact materials manufactured by internal oxidation. Silver-antimony oxide has high electrical conductivity, low contact resistance, and excellent welding resistance (1), but it suffers from high arc wear and is inferior in voltage resistance and insulation resistance.

そこで本発明者は、この電気接点材料よりもアークに対
する耐消耗性に優れた接点特性を有する電気接点材料を
開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。Therefore, the inventor of the present invention has conducted extensive research to develop an electrical contact material that has contact properties that are more resistant to arc wear than this electrical contact material, and as a result has found a satisfactory electrical contact material.

本発明の電気接点材料の一つは、ビスマス０．１〜５重
量％、インジウム１〜１０市量％、ずず１〜１０重量％
、アンチモン１〜１０重量％、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 includes 0.1 to 5% by weight of bismuth, 1 to 10% by weight of indium, and 1 to 10% by weight of tin.
, 1 to 10% by weight of antimony, the balance being 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０．１〜
５重量％、インジウム１〜１０．すず１〜１０市量％、
アンチモン１〜１０重量％３鉄、ニッケル、コバルト、
ジルコニウムの少なくとモ一種０．０１〜０．５重量％
、残部銀から成る材料であって、巨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 0.1~
5% by weight, indium 1-10. Tin 1-10% by market weight,
Antimony 1-10% by weight 3 iron, nickel, cobalt,
0.01-0.5% by weight of at least one type of zirconium
, a material consisting mostly of silver, which is heavily internally oxidized.

本発明の電気接点材料に於いて、ビスマス０．１〜５重
量％、インジウム１〜１０市量％、ずず１〜１（ｌＪｉ
ｆ％、アンチモン１〜１０重量％とじた（２） 理由は、ビスマス０．１　宙ｔｉｆ％未満では酸化物を
微細化する効果がなく、インジウムＨｆｌ量％未満テは
耐消耗性の改善がなく、すず１重量％未満では耐消耗性
の向」二がなく、アンチモン１重量％未満では接触抵抗
の安定性、耐溶着性に関しては良好な結果が得られず、
またビスマス５重量％を越えると合金の融点が下がりす
ぎ高温での内部酸化が困難となり、インジウム１０重量
％を越えると接点開閉時に接点面に酸化インジウムが堆
積して接触抵抗が上昇し、ずす１０重量％を越えると内
部酸化が困難となり、アンチモン１０重量％を越えると
酸化物が粒界に多くなり耐消耗性が劣化するので、ビス
マス０．１〜５重量％、インジウム１〜ｉｏ、ｔ’ｒ１
〜１０重四％、アンチモン１〜１０重量％の範囲内では
、耐溶着性、耐消耗性、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, bismuth 0.1 to 5% by weight, indium 1 to 10% by weight, and 1 to 1
f%, antimony 1 to 10% by weight (2) The reason is that if the amount of bismuth is less than 0.1 tif%, there is no effect of refining the oxide, and if the amount of indium is less than 1% by weight, there is no improvement in wear resistance. If the tin content is less than 1% by weight, there is no improvement in wear resistance, and if the antimony content is less than 1% by weight, good results cannot be obtained in terms of contact resistance stability and welding resistance.
Furthermore, if the content exceeds 5% by weight of bismuth, the melting point of the alloy will drop too low and internal oxidation at high temperatures will become difficult, and if the content of indium exceeds 10% by weight, indium oxide will accumulate on the contact surface when the contact is opened and closed, increasing the contact resistance. If it exceeds 10% by weight, internal oxidation will become difficult, and if it exceeds 10% by weight, oxides will increase in the grain boundaries and wear resistance will deteriorate. 'r1
Within the range of 10 to 4% by weight and 1 to 10% by weight of antimony, an electrical contact material with sufficiently satisfactory welding resistance, abrasion resistance, and contact resistance properties can be obtained.

さらに本発明の電気接点材料の他の一つに於いテ、ヒス
マス０．１〜５重量％、インジウム１〜１０）ｎ２１％
、ずず１〜１０重量％、アンチモン１〜１０（３） ＋ｎ　ｉｔ％以外に鉄、ニッケル、コバルト、ジルコニ
ウムの少なくとも一種０．０１〜０．５１Ｊｆ量！１ｆ
ｉ添加する理由ｉｌｌ、これを電気接点材料に分散させ
た場合、これにより得られる酸化ヒスマス、酸化ずす、
酸化インジウム及び酸化銅の均一微細な分ｔ１ｋによっ
て、放電による消耗が−Ｎ減少するからであっ゛Ｃ１鉄
、ニッケル、コバルト、ジルコニウムの少ナクとも一種
を合計で０．０１重量％未満では酸化ヒスマス、酸化イ
ンジウム、酸化ずず、酸化アンチモンの均−微１１１１
に分子ｉｋ、ｌ！ず、０．５電縫％を越えるとそれ自体
のｆ６１１析が増加するからである。Furthermore, in another one of the electrical contact materials of the present invention, hismuth is 0.1 to 5% by weight, indium is 1 to 10%, and n21%.
, 1 to 10% by weight of tin, 1 to 10 (3) + nit% of antimony, and 0.01 to 0.51 Jf of at least one of iron, nickel, cobalt, and zirconium! 1f
The reason for adding i is that when this is dispersed in an electrical contact material, the resulting hismuth oxide, tin oxide,
This is because consumption due to discharge is reduced by -N due to the uniform fine content t1k of indium oxide and copper oxide. , indium oxide, tin oxide, antimony oxide - 1111
Molecule ik, l! First, if it exceeds 0.5%, the f611 analysis itself increases.

次に本発明による電気接点材）［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１〜４の成分組成の材料を
溶解し、アトマイズ粉となした後、６００℃、９気圧、
２日間内部酸化し、この酸化アト°ｌ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ッダー加工
し、υ■１部径５＋＋ａ、ｔＩｌｌ高１■１脚部径２．
５ｍｍ、脚長２．５ｍｍの固定接点とｌｌＪｌ部（４） ｉ呈４龍１頭同１．１龍１脚部径２．８鶴１脚長１．６
＋＋ｓ。After melting the materials having the compositions of Examples 1 to 4 shown in the left column of the table below to form atomized powder, the mixture was heated at 600°C, 9 atm,
After internal oxidation for 2 days, this oxidized atomized powder was compressed and sintered, extruded and drawn, then cut and processed into a header to form υ■1 part diameter 5++a, tIll height 1■1 leg diameter 2 ．．
5 mm, leg length 2.5 mm fixed contact and ll Jl part (4)
++s.

頭部球状５Ｒの可動接点を得た。A movable contact with a spherical head 5R 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、下記の表の左欄に示す従来例の成
分組成の材料を実施例と同じ方法で作った同一寸法のり
ベント型電気接点をヒンジ型リレーに組み込み下記の試
験条件にて開閉試験を行った処、ド記の表の右欄に示す
ような結果を得た。However, there are bed-type electrical contacts made using the electrical contact materials of Examples 1 to 4, and bent-type electrical contacts of the same size made using the same method as in the examples using materials with the compositions of the conventional examples shown in the left column of the table below. When electrical contacts were assembled into a hinge-type relay and a switching test was conducted under the test conditions below, the results shown in the right column of the table below were obtained.

試験条件 電　　　圧　　　：　　　　　ＡＣｌｏｏＶ　　　５０
１１ｚ電　　流　　：　　投入４０Ａ、定常１０Ａ負　
　　荷　　　：　　　抵抗 開閉頻度　　：　　２０回／分 開閉回数　　：　　溶着発生迄 接触力　　　：　　４０ｇ （以下余白） なお、耐電圧については接点間ＡＣ１２００Ｖ、　　１
０秒印加しリーク電流が１０ｍ　Ａ未満の場合合格、１
０ｍＡ以」−の場合不合格とした。Test condition voltage: AClooV 50
11z current: input 40A, steady 10A negative
Load: Resistance Switching frequency: 20 times/min Switching/closing frequency: Contact force until welding occurs: 40g (blank below) Note that withstand voltage is 1200V AC between contacts, 1
If the leakage current is less than 10mA after applying for 0 seconds, pass, 1
0 mA or more''-, it was judged as a failure.

上記の表で明らかなように実施例１〜４の電気接Ｊ、−
１材料で作ったりベット型電気接点は、従来例の電気接
点材料で作ったりベット型電気接点に仕し、耐電圧特性
、耐消耗性が遥かに優れ、耐溶着性については略同等に
優れていることが判る。As is clear from the table above, the electrical connections J, - of Examples 1 to 4
Bed-type electrical contacts made from a single material are made from conventional electrical contact materials and have far superior voltage resistance and abrasion resistance, and are almost as good in welding resistance. I know that there is.

以上詳記した通り本発明の電気接点材料は、従来の電気
接点材料よりも耐電圧特性、耐消Ｊｔ性に（ｆれた接点
特性を自するので、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 described in detail above, the electrical contact material of the present invention has contact properties that are superior to those of conventional electrical contact materials in terms of voltage resistance and dissipation resistance (Jt), so it can be used as a substitute for conventional electrical contact materials. It can be said that it is temporary.

出願人　　口１中貴金属工業株式会社 （７） ＝９９−Applicant: Kuchi 1 Naka Kikinzoku Kogyo Co., Ltd. (7) =99-

Claims (1)

【特許請求の範囲】 １）ビスマス０．１〜５重量％、インジウム１〜１０重
量％、すず１〜１０重量％、アンチモン１〜１０重量％
、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０．１〜５重量％、インジウム１〜１０重
量％、すず１〜１０重量％、アンチモン１〜１０重量％
、鉄、ニッケル、コバルト、ジルコニウムの少な（とも
一種０．０１〜０．５重量％、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。[Claims] 1) 0.1-5% by weight of bismuth, 1-10% by weight of indium, 1-10% by weight of tin, 1-10% by weight of antimony.
, an electrical contact material which is internally oxidized and has a balance of silver. 2) Bismuth 0.1-5% by weight, Indium 1-10% by weight, Tin 1-10% by weight, Antimony 1-10% by weight
, iron, nickel, cobalt, and zirconium (0.01 to 0.5% by weight of each type, and the balance is silver), and is internally oxidized.