JPS5985832A - Contact material - Google Patents
Contact materialInfo
- Publication number
- JPS5985832A JPS5985832A JP58185734A JP18573483A JPS5985832A JP S5985832 A JPS5985832 A JP S5985832A JP 58185734 A JP58185734 A JP 58185734A JP 18573483 A JP18573483 A JP 18573483A JP S5985832 A JPS5985832 A JP S5985832A
- Authority
- JP
- Japan
- Prior art keywords
- lithium
- zinc
- nickel
- resistance
- content
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/021—Composite material
- H01H1/023—Composite material having a noble metal as the basic material
- H01H1/0237—Composite material having a noble metal as the basic material and containing oxides
- H01H1/02372—Composite material having a noble metal as the basic material and containing oxides containing as major components one or more oxides of the following elements only: Cd, Sn, Zn, In, Bi, Sb or Te
Abstract
Description
【発明の詳細な説明】
この発明は接点材料に関するものであろう従来から、Ａ
ｇ−Ｃａ２接点材料、Ａｇ−８ｎＯ＊接点材料、Ａｇ−
Ｎｉ接点材料は、電磁接触機等の各種の電気機器に用い
られている。これらの接点材料のうち、Ａｇ−ＣｄＯ接
点材料＊ Ａｇ ５ｎ０２接点材料は耐浴着性および耐
消耗性に優れ、Ａｇ−Ｎｉ接点材料は耐消耗性および加
工性に優れている。しかしながら、これらの接点材料は
、いずれもノーヒユーズブレーカに用いたときに、短絡
時に流れる大電流にょつて了−りを生じ、かつこのアー
クの切れが不充分なため、短絡遮断性能が劣るという欠
点があった。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to contact materials, which
g-Ca2 contact material, Ag-8nO* contact material, Ag-
Ni contact materials are used in various electrical devices such as electromagnetic contactors. Among these contact materials, the Ag-CdO contact material*Ag 5n02 contact material has excellent bath adhesion resistance and abrasion resistance, and the Ag-Ni contact material has excellent abrasion resistance and processability. However, when these contact materials are used in a no-fuse breaker, they fail due to the large current that flows during a short circuit, and the short-circuit breaking performance is poor because the arc is not cut sufficiently. was there.
この発明者らは、このような欠点を解消するために研究
を重ねた結果、銀素地に酸化亜鉛と酸化リチウムとニッ
ケルとを含有させ、その含有量を、酸化亜鉛が亜鉛（Ｚ
ｎ）基準で１〜７重量重量風ド「憾」と略す）、酸化リ
チウムがリチウム（Ｌｉ）基準で０．２〜１．５憾、ニ
ッケルが０．１〜１．０係になるように選ぶと、耐溶着
性、耐消耗性に優れ、かつアーク遮断性能にも優れてい
る接点材料が得られることを見いだし、この発明を完成
した。As a result of repeated research to eliminate these drawbacks, the inventors made a silver base material contain zinc oxide, lithium oxide, and nickel, and adjusted the content so that zinc oxide was equal to zinc (Z).
n) Based on lithium (Li) standards, it should be 1-7% by weight (abbreviated as "regret"), lithium oxide should be 0.2-1.5%, and nickel should be 0.1-1.0% based on lithium (Li). It was discovered that, when selected, a contact material with excellent welding resistance, wear resistance, and arc interrupting performance could be obtained, and the present invention was completed.
すなわち、この発明は、銀素地に、酸化亜鉛と酸化リチ
ウムと二・ツケルとが含有されている接点材料であって
、酸化亜鉛の含有量が亜鉛基準で１〜７憾、酸化リチウ
ムの含有量がリチウム基準で０、２〜１．５係、ニッケ
ルの含有量が０．１−１．０優に選ばれている接点材料
をその要旨とするものである。That is, the present invention provides a contact material in which zinc oxide, lithium oxide, and nickel are contained in a silver base, wherein the content of zinc oxide is 1 to 7 on the basis of zinc, and the content of lithium oxide is 1 to 7 on the basis of zinc. The gist is a contact material in which the content of nickel is 0.2 to 1.5 based on lithium, and the nickel content is well over 0.1 to 1.0.
酸化亜鉛と酸化リチウムとは、それぞれアーク遮断性能
を向上（アークが移動しやすくなりアークの切れがよく
なる）させる効果を発揮するものであり、両者を併用す
ることにより一層その効果が助長されるのである。まだ
、酸化リチウムは、銀素地を強化して接点材料の耐浴着
性および耐消耗性を向上させる効果をも発揮するのであ
る。Zinc oxide and lithium oxide each have the effect of improving arc interrupting performance (making the arc easier to move and cutting the arc better), and using them together will further enhance this effect. be. Furthermore, lithium oxide also has the effect of strengthening the silver matrix and improving the bath adhesion resistance and abrasion resistance of the contact material.
しかし、酸化亜鉛の含有量が、亜鉛基準で１〜７係の範
囲を外れると、特に７嗟を超えるとアーク遮断性能向上
効果が小さくなる。そして、酸化亜鉛の含有量が１４未
満のときは、接点材料の耐溶着性、耐消耗性も劣るよう
になる。したがって、酸化亜鉛の含有量は、亜鉛基準で
１〜７優に選ばれるのである。However, when the content of zinc oxide is out of the range of 1 to 7 on the zinc basis, particularly when it exceeds 7, the effect of improving arc interrupting performance becomes small. When the zinc oxide content is less than 14, the welding resistance and abrasion resistance of the contact material will also be poor. Therefore, the content of zinc oxide is selected from 1 to 7 well based on zinc.
また、酸化リチウムの含有量が、リチウム基準で０．２
〜１．５幅の範囲を外れると、上記同様アーク遮断性能
向上効果が小さくなる。また、耐浴着性および耐消耗性
の向上効果も含有量が＋１．２４未満になると小さくな
る。したがって、酸化リチウムの含有量は、リチウム基
準で０．２〜１．５優に選ばれるのである。In addition, the content of lithium oxide is 0.2 on a lithium basis.
If the width is outside the range of 1.5 to 1.5, the effect of improving arc interrupting performance will be reduced as described above. Moreover, the effect of improving bath adhesion resistance and abrasion resistance becomes smaller when the content is less than +1.24. Therefore, the content of lithium oxide is selected to be approximately 0.2 to 1.5% based on lithium.
このようなｍ成をもつ接点材料は、通常つぎのようにし
て製造される。すなわち、Ｚｎ ｌ〜７４）。A contact material having such an m configuration is usually manufactured in the following manner. That is, Zn l~74).
Ｌｉ０．２〜１．５係、Ｎｉ０．１〜１．０係、残部Ａ
ｇよりなる合金を内部酸化してＺｎおよびＬｉを選択的
に酸化させることにより製造される。この場合、Ｎｉは
、内部酸化の際の加熱により選択酸化物結晶粒子が成長
して粗大化（結晶粒子が粗大化す鼠と接点材料特性の低
下を招く）するのを防止する作用を発揮するのである。Li 0.2-1.5, Ni 0.1-1.0, remainder A
It is manufactured by internally oxidizing an alloy consisting of g to selectively oxidize Zn and Li. In this case, Ni has the effect of preventing selective oxide crystal particles from growing and becoming coarser due to heating during internal oxidation (causing coarser crystal particles and deterioration of contact material properties). be.
しかしながら、Ｎｉの含有量が１憾を超えるとＡｇｇ地
中にＮｉが偏析して接点材料の性能（耐溶着性、耐消耗
性）が悪くなる。逆に、０．１係未満では結晶粒子微細
化効果が小さくなる。However, when the Ni content exceeds 1, Ni segregates in the Agg ground and the performance (welding resistance, wear resistance) of the contact material deteriorates. On the other hand, if the coefficient is less than 0.1, the crystal grain refinement effect becomes small.
したがって、Ｎｉの含有量は０．１〜１．０優に選ばれ
るのである。Therefore, the Ni content is selected to be well between 0.1 and 1.0.
以上のように、この発明の接点材料は、銀素地に、酸化
亜鉛と酸化リチウムとニッケルとが含有されている接点
材料であって、酸化亜鉛の含有量が亜鉛基準で１〜７係
、酸化リチウムの含有量がリチウム基準で０．２〜１．
５９６．ニッケルの含有量が０．１〜１．０係に選ばれ
ているため、耐浴着性。As described above, the contact material of the present invention is a contact material in which zinc oxide, lithium oxide, and nickel are contained in a silver base, and the content of zinc oxide is 1 to 7 on the basis of zinc. The lithium content is 0.2 to 1.
596. Since the nickel content is selected to be between 0.1 and 1.0, it has good bath adhesion resistance.
耐消耗性に優れ、しかもアーク遮断性能も侵れているの
である。It has excellent wear resistance and also has excellent arc interrupting performance.
つぎに、実施例について比較例と併せ−Ｃ説明する。Next, Examples will be explained together with Comparative Examples.
〔実施例、比較例」
Ｚｎ 、 Ｌｉがそれぞれ第１表に示す量だけ含まれ、
かつＮｉが０．２ 憾含まれるように、ＡｇＫ Ｚｎ
、 Ｌｉ 。[Example, Comparative Example] Zn and Li were each contained in the amounts shown in Table 1,
AgK Zn so that Ni is contained at 0.2
, Li.
Ｎｉを添加し、Ｎ２＃囲気中で溶解し合金化した。つぎ
に、これを金型に入れて鋳造し棒状にしたのち、Ｎ２雰
囲気中において７５０℃で８時間焼鈍した。ついで、こ
れをワイヤカッタで厚み１ｆｌの板状に切断して内部酸
化した。内部酸化は、０２雰囲気中で、７５０℃、１０
０時間の条件で行った。そして、酸化が内部まで進んで
いることを確認したのち、板材の片面のみに銀めっきを
施してろう付けし試料とした。Ni was added and alloyed by melting in a N2# atmosphere. Next, this was put into a mold and cast into a rod shape, and then annealed at 750° C. for 8 hours in a N2 atmosphere. Then, this was cut into a plate shape with a thickness of 1 fl using a wire cutter and internally oxidized. Internal oxidation was carried out at 750°C in 02 atmosphere for 10
The test was carried out under the condition of 0 hours. After confirming that oxidation had progressed to the inside, silver plating was applied to only one side of the plate and brazed to prepare a sample.
（以 下 余 白）
第１表
つぎに、上記のようにして得られた試料についてＡＳＴ
Ｍ試験により耐消耗性、耐浴着性を調べるとともに、ノ
ーヒユーズブレーカに組み込んで短絡遮断性能を調べた
。(Margin below) Table 1 Next, the AST test for the sample obtained as above is shown.
The abrasion resistance and bath adhesion resistance were investigated by the M test, and the short circuit breaking performance was investigated by incorporating it into a no-fuse breaker.
耐消耗性、耐浴着性の測定結果は第２表のとおりであっ
た。The measurement results of wear resistance and bath attachment resistance are shown in Table 2.
（註）浴着回数は１０万回開閉までの累積浴着回数であ
る。(Note) The number of times the bath is worn is the cumulative number of times the bath is worn after opening and closing 100,000 times.
また、短絡試験の結果は、図面に示すとおりであった。In addition, the results of the short circuit test were as shown in the drawing.
図において、曲ＢＨＡは実施例１のもののアーク膠着時
間曲線、曲線Ｂは実施例２のもののアーク膠着時間曲線
、曲線Ｃは実施例３のもののアーク膠着時間曲線、曲線
りは比較例のもののアーク膠着時間曲線である。第２表
および図面から明らかなように、比較例のものは、゛耐
消耗性、耐浴着性および短絡遮断性能が著しく劣ってい
る。In the figure, curve BHA is the arc sticking time curve of Example 1, curve B is the arc sticking time curve of Example 2, curve C is the arc sticking time curve of Example 3, and curve is the arc sticking time curve of Comparative Example. This is the stalemate time curve. As is clear from Table 2 and the drawings, the comparative examples were significantly inferior in abrasion resistance, bath adhesion resistance, and short-circuit breaking performance.
これに対して実施例のものは、それらが全て優れている
のである。On the other hand, all of the examples are excellent.
なお、ＡＳＴＭ試験および短絡試験はつぎのようにして
行った。Note that the ASTM test and short circuit test were conducted as follows.
（ＡＳＴＭ試験） 試料をＡＳＴＭ試験機に掛け、下記の条件で試験した。(ASTM test) The samples were run on an ASTM test machine and tested under the following conditions.
電圧：１ｌ）ＯＶ、電流：４０Ａ、開閉頻度＝１回／１
秒、接触カニ２００１１．開離カニ３４１１Ｊｉ＋最終
開閉回数＝１０万回
（短絡試験）
前記のように、試料をノーヒユーズブレーカに組み込ん
で短絡試験を行ってアーク膠着時間を測定した。このア
ークＷ着時間は、一対の接点間で発生したアークがその
まま滞留している時間のことであり、この時間が長いと
一対の接点がアークでつながっている時間が長くなり、
ついには接点の熱破壊を招くようになる。しだがって、
アーク膠着時間は短い程よいのである。Voltage: 1l) OV, current: 40A, opening/closing frequency = 1 time/1
Second, contact crab 20011. Opening crab 3411Ji + final number of openings and closings = 100,000 times (short-circuit test) As described above, the sample was assembled into a no-fuse breaker, a short-circuit test was conducted, and the arc sticking time was measured. This arc W arrival time is the time that the arc generated between a pair of contacts stays as it is, and the longer this time, the longer the time that the pair of contacts are connected by the arc,
Eventually, this will lead to thermal breakdown of the contacts. Therefore,
The shorter the arc stagnation time, the better.
図面はアーク膠着時間曲線図である。 特許出願人 松下電工株式会社 代理人 弁理士 松 本 武 彦 The drawing is an arc stagnation time curve diagram. Patent applicant: Matsushita Electric Works Co., Ltd. Agent: Patent Attorney Takehiko Matsumoto
Claims (1)
が含有されている接点材料であって、酸化亜鉛の含有量
が亜鉛基準で１〜７重量係、酸化リチウムの含有量がリ
チウム基準で０．２〜１．５−７ｆｉ俤、ニッケルの含
有量が０．１−１．０重量幅に選ばれていることを特徴
とする接点材料。(1) A contact material containing zinc oxide, lithium oxide, and nickel in a silver base, in which the content of zinc oxide is 1 to 7 parts by weight based on zinc, and the content of lithium oxide is based on lithium. A contact material characterized in that the content of nickel is selected to be in the range of 0.2 to 1.5-7fi, and the content of nickel is in the range of 0.1-1.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58185734A JPS5985832A (en) | 1983-10-03 | 1983-10-03 | Contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58185734A JPS5985832A (en) | 1983-10-03 | 1983-10-03 | Contact material |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55016944A Division JPS597336B2 (en) | 1980-02-13 | 1980-02-13 | contact material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5985832A true JPS5985832A (en) | 1984-05-17 |
Family
ID=16175922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58185734A Pending JPS5985832A (en) | 1983-10-03 | 1983-10-03 | Contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5985832A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100355919C (en) * | 2003-11-26 | 2007-12-19 | 马渊马达株式会社 | Material for sliding contacts, clad composite material and small-sized DC motor using the same |
| CN100457936C (en) * | 2005-05-12 | 2009-02-04 | 马渊马达株式会社 | Commutator and brush materials, clad composite material, and small electric DC motor |
-
1983
- 1983-10-03 JP JP58185734A patent/JPS5985832A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100355919C (en) * | 2003-11-26 | 2007-12-19 | 马渊马达株式会社 | Material for sliding contacts, clad composite material and small-sized DC motor using the same |
| CN100457936C (en) * | 2005-05-12 | 2009-02-04 | 马渊马达株式会社 | Commutator and brush materials, clad composite material, and small electric DC motor |
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