JPH01268832A - Ag-oxide composite streak material for electrical contact - Google Patents
Ag-oxide composite streak material for electrical contactInfo
- Publication number
- JPH01268832A JPH01268832A JP63092666A JP9266688A JPH01268832A JP H01268832 A JPH01268832 A JP H01268832A JP 63092666 A JP63092666 A JP 63092666A JP 9266688 A JP9266688 A JP 9266688A JP H01268832 A JPH01268832 A JP H01268832A
- Authority
- JP
- Japan
- Prior art keywords
- oxide
- alloy
- alloy layer
- streak
- electrical 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.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 26
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 20
- 239000000956 alloy Substances 0.000 claims abstract description 20
- 229910017937 Ag-Ni Inorganic materials 0.000 claims abstract description 19
- 229910017984 Ag—Ni Inorganic materials 0.000 claims abstract description 19
- 229910001316 Ag alloy Inorganic materials 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 11
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 5
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 229910052709 silver Inorganic materials 0.000 abstract description 5
- 238000003466 welding Methods 0.000 abstract description 5
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 239000010410 layer Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 239000008187 granular material Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910001245 Sb alloy Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Contacts (AREA)
- Conductive Materials (AREA)
- Non-Insulated Conductors (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、主に中負荷用電気接点に用いられる電気接点
用Ａｇ−酸化物系複合条材に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an Ag-oxide composite strip for electrical contacts, which is mainly used for medium-load electrical contacts.
従来より、中負荷用電気接点材料として、ＡｇやＡｇ−
ＮｉあるいはＡｇにＣｄ、Ｓｂ、Ｓｎ。Traditionally, Ag and Ag-
Cd, Sb, Sn on Ni or Ag.
ＺｎあるいはＩｎなどの酸化物を配した所謂Ａｇ−酸化
物系材料がある。There is a so-called Ag-oxide material containing an oxide such as Zn or In.
このＡｇ−酸化物系材料は耐溶着性、耐消耗性および接
触安定性等の接点特性が優れているために主に中電流以
上の領域で用いられている。この接点特性が優れる理由
としては、ＡｇやＡ ｇ −Ｎｉと比較してアーク電圧
・電流が低いためアークが発生し易く、このアークによ
って接点の構成成分である酸化物等が揮発するため接点
表面の清浄化やアークの吹消効果が向上し、これによっ
て優れた接点特性が得られるとされている。This Ag-oxide type material has excellent contact properties such as welding resistance, wear resistance, and contact stability, and is therefore mainly used in the region of medium current or higher. The reason why this contact characteristic is excellent is that the arc voltage and current are lower than that of Ag or Ag-Ni, so arcing is easy to occur. It is said that this improves the cleaning and arc blowing effects, thereby providing excellent contact characteristics.
このように、Ａｇ−酸化物系材料は、Ａｇ中に５〜２０
ｗｔ％程度の酸化物を分散させて接点特性を向上させて
いるが、その反面塑性加工能が著しく低下し、酸化物量
の増加に伴って条材に加工することが困難になる。In this way, the Ag-oxide material contains 5 to 20
Although the contact properties are improved by dispersing approximately wt% of oxides, on the other hand, the plastic workability is significantly reduced, and as the amount of oxides increases, it becomes difficult to process into strips.
また、Ａｇ−酸化物系材料は、Ａｇ中に酸化物が分散し
ているため台材等に溶接することが非常に難しい。これ
らの理由から加工性や溶接性に優れたＡｇやＡｇ−Ｎｉ
に比べて条材で多用されないこととなっている。Furthermore, since oxides are dispersed in Ag, it is very difficult to weld Ag-oxide materials to a base material or the like. For these reasons, Ag and Ag-Ni have excellent workability and weldability.
It is not used as much in strip material compared to .
すなわち、Ａｇ−酸化物系の粉体、片体、短線あるいは
粒体を焼結後加工する場合、Ａｇ中に分散している酸化
物の存在によって粉体、片体、短線あるいは粒体間の強
度が小さいために引き抜き加工等でワレが発生しやすく
なる。特に酸化物量が８ｗｔ％を超えるとこの傾向が顕
著に現れ、線材や条材等への加工が極めて難しくなる。In other words, when processing Ag-oxide based powders, pieces, short wires, or granules after sintering, the presence of oxides dispersed in Ag causes problems between the powder, pieces, short wires, or granules. Due to its low strength, cracks are likely to occur during drawing processes, etc. In particular, when the amount of oxide exceeds 8 wt%, this tendency becomes noticeable, and processing into wire rods, strips, etc. becomes extremely difficult.
そこでこの粉体や粒体間の強度を増すために、例えば特
開昭５４−３３２０７号０ようにＡｇ−酸化物系薄片の
周囲にＡｇに冨んだ層を形成する方法がある。Therefore, in order to increase the strength between the powders and particles, there is a method of forming an Ag-rich layer around the Ag-oxide flakes, as disclosed in, for example, JP-A-54-33207-0.
さらに、別の方法として特開昭５４−３３２０６号や特
開昭５４−３４０５７号のように内部酸化能を有するＡ
ｇ合金の外周にＡｇ層を形成し、加工後内部酸化あるい
は内部酸化後に加工する方法等がある。Furthermore, as another method, A
There are methods such as forming an Ag layer on the outer periphery of the g-alloy and performing internal oxidation after processing or processing after internal oxidation.
〔発明が解決しようとする課題〕
しかし、上記の従来技術によると、前者は粉体や粒体の
処理が単純ではなくコストが高くなる問題があり、後者
は内部酸化処理後の条材中心部に酸化物の希薄な層が出
現するため接点特性が低下するという問題がある。[Problems to be Solved by the Invention] However, according to the above-mentioned prior art, the former has the problem that processing of powder and granules is not simple and increases the cost, and the latter has the problem that the processing of powder and granules is not simple and increases the cost. There is a problem in that contact characteristics deteriorate due to the appearance of a dilute layer of oxide.
また、上記のようにＡｇ−酸化物系材料は酸化物を含有
しているために接点を合材に安定的に溶接することがで
きないという問題がある。Furthermore, as mentioned above, since Ag-oxide-based materials contain oxides, there is a problem in that the contacts cannot be stably welded to the composite material.
本発明は、Ａｇ−酸化物系の粉、片、短線、粒を焼結後
条材に加工したＡｇ−酸化物系条材内部に５〜２０ｗｔ
％のＮｉを含有するＡｇ−Ｎｉ合金を配し、さらにこの
Ａｇ−酸化物系条材の外周に０．０１〜１ｗｔ％のＦｅ
、Ｎｉ５Ｍｎの一種以上を添加したＡｇ合金層を形成し
、その複合条材断面において、Ａｇ−酸化物系材料の面
積に対するＡｇ−Ｎｉ合金の面積比率を５〜４０％、ま
たＡｇ−酸化物系材料とＡｇ−Ｎｉ合金の面積の和に対
するＡｇ合金層の面積比率を５〜３５％としたことを特
徴とする。In the present invention, 5 to 20 wt.
% of Ni is arranged, and furthermore, 0.01 to 1 wt % of Fe is arranged on the outer periphery of this Ag-oxide strip.
, form an Ag alloy layer to which one or more types of Ni5Mn are added, and in the cross section of the composite strip, the area ratio of the Ag-Ni alloy to the area of the Ag-oxide material is 5 to 40%, and the Ag-oxide-based material It is characterized in that the area ratio of the Ag alloy layer to the sum of the areas of the material and the Ag-Ni alloy is 5 to 35%.
上記の構成によると、Ａｇ−酸化物系条材の内部にＡｇ
−Ｎｉ合金を配し、Ａｇ−酸化物系条材の外周にＡｇ合
金層を形成することにより、Ａｇ−酸化物系の粉体間あ
るいは片、短線、粒体間の強度不足を補い、条材への塑
性加工能を向上せしめると共に接点として合材等へ固着
接合するとき、条材内部に配したＡｇ−Ｎｉ合金と外周
に形成したＡｇ合金層との相乗効果によって強固な接合
状態が得られることになる。According to the above configuration, Ag is contained inside the Ag-oxide strip.
By arranging -Ni alloy and forming an Ag alloy layer on the outer periphery of the Ag-oxide-based strip, it compensates for the lack of strength between Ag-oxide-based powders, pieces, short wires, and grains, and In addition to improving the plastic working ability of materials, when bonding firmly to composite materials etc. as a contact point, a strong bond can be obtained due to the synergistic effect of the Ag-Ni alloy placed inside the strip and the Ag alloy layer formed on the outer periphery. It will be done.
ここでＡｇ−酸化物系材料の面積に対するＡｇ−Ｎｉ合
金の面積比率を５〜４０％とした理由は、Ａｇ−Ｎｉ合
金が５％未満ではＡｇ−酸化物系材料の塑性加工能の向
上と合材等へ固着接合に充分な効果が得られず、４０％
を超えると接点特性の内、特に耐溶着性が劣下するため
である。The reason why the area ratio of the Ag-Ni alloy to the area of the Ag-oxide material was set at 5 to 40% is that if the Ag-Ni alloy is less than 5%, the plastic working ability of the Ag-oxide material will not improve. 40% due to insufficient effect on adhesive bonding to composite materials, etc.
This is because if it exceeds this, the contact properties, especially the welding resistance, will deteriorate.
また、Ａｇ−Ｎｉ合金のＮｉ量を５〜２０ｗｔ％に限定
した理由は、Ｎｉｌが５ｗｔ％未満ではＡｇ−Ｎｉ合金
の機械的強度が小さく、Ｎｉ量が２０ｗｔ％を超えると
加工性が急激に低下するためである。In addition, the reason why the Ni amount in the Ag-Ni alloy is limited to 5 to 20 wt% is that when the Ni content is less than 5 wt%, the mechanical strength of the Ag-Ni alloy is low, and when the Ni content exceeds 20 wt%, the workability rapidly decreases. This is because it decreases.
一方、Ａｇ−酸化物系材料とＡｇ−Ｎｉ合金の面積の和
に対するＡｇ合金層の面積比率を５〜３５％とした理由
は、５％未満では被覆強度が小さ過ぎて塑性加工能の向
上に寄与しないだけでなく、合材等への固着接合時に充
分な効果が得られないからであり、３５％を超えると接
点特性の内、耐消耗性が低下するためである。On the other hand, the reason why the area ratio of the Ag alloy layer to the sum of the areas of the Ag-oxide material and the Ag-Ni alloy was set to 5 to 35% is that if it is less than 5%, the coating strength is too small and the plastic working ability cannot be improved. This is because not only does it not contribute, but also a sufficient effect cannot be obtained when bonding to a composite material, etc. If it exceeds 35%, wear resistance among the contact characteristics decreases.
さらに、被覆層となるＡｇ合金の添加物であるＦｅ、Ｎ
ｉ、Ｍｎの一種以上を０．０１〜１ｗｔ％の量に水足し
た理由を述べると、その添加量が０、０１ ｗ ｔ％未
満では加工時における強度が不十分であり、１ｗｔ％を
超えると電気抵抗が高くなり、接点開閉時に悪い影響を
およぼすおそれがあるためである。Furthermore, Fe and N, which are additives of the Ag alloy that forms the coating layer, are added.
The reason for adding one or more types of i, Mn to an amount of 0.01 to 1 wt% is that if the amount added is less than 0.01 wt%, the strength during processing is insufficient, and if it exceeds 1 wt%. This is because the electrical resistance increases, which may have a negative effect on the opening and closing of the contacts.
〔実 施 例〕 第１実施例 Ａｇ１７４００ｇ、Ｃｄ２０００ｇ、Ｓｎ３００ｇ。〔Example〕 First example Ag17400g, Cd2000g, Sn300g.
Ｓｂ３００ｇを高周波溶解炉で溶解し、その溶湯を水ア
トマイズによって８７％Ａｇ−１０％Ｃｄ−１，５％Ｓ
ｎ −１，５％ｓｂ合金の粉体を得、この粉体を７０
０″Ｃで内部酸化した。300g of Sb was melted in a high frequency melting furnace, and the molten metal was water atomized to form 87%Ag-10%Cd-1.5%S.
A powder of n-1,5% sb alloy was obtained, and this powder was
Internal oxidation was carried out at 0″C.
つぎに、直径ｌＯ醍、長さ５００Ｍの８５％八ｇ−Ｎｉ
合金線１を２本第２図に示す如（、ゴム型２の中央部に
セットし、その中に内部酸化法のＡｇ−（Ｃｄ−３ｎ−
３ｂ）Ｏｘ粉３を充填してラバープレスによって外径約
３５胴に加圧成形した。Next, we used 85% 8g-Ni with a diameter of 1O and a length of 500M.
Two alloy wires 1 (as shown in FIG. 2) are set in the center of a rubber mold 2, and Ag-(Cd-3n-
3b) Ox powder 3 was filled and pressure molded into a cylinder with an outer diameter of about 35 mm using a rubber press.
この成形体を厚さ１ ｍｍ、内径３８ｍｍの下蓋を有す
るＡｇ−０，０５Ｎｉ−０，１Ｍｎ合金製の筒４に第３
図に示す如く挿入し、上蓋を溶接後に真空ポンプで吸引
して密閉し、９００°Ｃ１４０００気圧の条件で４時間
のＨＩＰ処理を行った。つぎに、スェージング加工後焼
鈍と引き抜き加工により直径３Ｍの複合線５に加工した
。This molded body was placed in a third cylinder 4 made of Ag-0,05Ni-0,1Mn alloy and having a lower cover with a thickness of 1 mm and an inner diameter of 38 mm.
It was inserted as shown in the figure, and after welding the top cover, it was sealed by suction with a vacuum pump and subjected to HIP treatment at 900° C. and 14,000 atmospheres for 4 hours. Next, after swaging, it was processed into a composite wire 5 with a diameter of 3M by annealing and drawing.
このようにして得られた複合線５は、第４図に示す如く
であり、その断面をマイクロメータで測定したところ、
Ａｇ−（Ｃｄ−３ｎ−３ｂ）Ｏｘの面積に対する８５％
Ａｇ−Ｎｉの面積比は２０％、線の断面積全体に占める
Ａｇ合金層の面積比は１０％であった。The composite line 5 thus obtained is as shown in Fig. 4, and its cross section was measured with a micrometer.
85% of the area of Ag-(Cd-3n-3b)Ox
The area ratio of Ag-Ni was 20%, and the area ratio of the Ag alloy layer to the entire cross-sectional area of the wire was 10%.
以下同様の加工方法により表に示す如〈実施例２〜実施
例７を作った。Examples 2 to 7 were prepared using the same processing method as shown in the table.
以上の各実施例による複合線を切断して第１図に示す如
（Ｃｕ−Ｚｎの台材６にスポット溶接してその接合強度
を測定した。The composite wires according to each of the above examples were cut and spot welded to a Cu--Zn base material 6 as shown in FIG. 1, and the bonding strength was measured.
比較材として、上記のＡｇ−Ｎｉを中心部に配さすその
他を同一工程で作製したＡｇ被覆複合線を用いた。As a comparison material, an Ag-coated composite wire manufactured in the same process except for the above Ag-Ni disposed in the center was used.
以上の構成によると、Ａｇ−酸化物系条材の内部にＡＨ
−Ｎｉ合金を配し、Ａｇ−酸化物系条材の外周にＡｇ層
を形成したことにより、加工工程中に切断や割れがな（
なり、非常に良好な加工性を示すことになり、スポット
溶接も容易に行える効果を有する。According to the above structure, AH exists inside the Ag-oxide strip.
- By disposing the Ni alloy and forming an Ag layer around the outer periphery of the Ag-oxide strip, there will be no cutting or cracking during the processing process.
Therefore, it exhibits very good workability and has the effect that spot welding can be easily performed.
第１図は合材に接点材を溶接した状態の斜視図、第２図
はゴム型による製造工程を示す斜視図、第３図はＡｇ筒
に成形体を挿入した状態の斜視図、第４図は複合線に加
工した状態の斜視図である。
１・・・Ａｇ−Ｎｉ合金
３− ・−Ａｇ−（Ｃｄ−３ｎ）Ｏｘ
４・・・Ａｇ合金層
５・・・複合線
６・・・台材
特許出願人 株式会社徳力本店
代 理 人 弁理士 金倉喬二
砧 １ 圓 第 ２ 亘
輸 ３ 回 第 ４ コFigure 1 is a perspective view of the contact material welded to the composite material, Figure 2 is a perspective view showing the manufacturing process using a rubber mold, Figure 3 is a perspective view of the molded body inserted into the Ag cylinder, and Figure 4 The figure is a perspective view of the composite wire processed. 1...Ag-Ni alloy 3- -Ag-(Cd-3n)Ox 4...Ag alloy layer 5...Composite wire 6...Material Patent applicant Tokuriki Honten Agent Patent attorney Shi Kanakura Takashi 1 En 2nd Wataru 3rd 4th Ko
Claims (1)
材に加工したＡｇ−酸化物系条材の内部に５〜２０ｗｔ
％のＮｉを含有するＡｇ−Ｎｉ合金を配し、さらに、こ
のＡｇ−酸化物系条材の外周に０．０１〜１ｗｔ％のＦ
ｅ、Ｎｉ、Ｍｎの一種以上を添加したＡｇ合金層を形成
し、Ａｇ−酸化物系材料の断面積に対するＡｇ−Ｎｉ合
金の面積比率を５〜４０％、またＡｇ−酸化物系材料と
Ａｇ−Ｎｉ合金の面積の和に対するＡｇ合金層の面積比
率を５〜３５％としたことを特徴とする電気接点用Ａｇ
−酸化物系複合条材。1. After sintering Ag-oxide powders, pieces, short wires, and grains, 5 to 20 wt is placed inside the Ag-oxide-based strip that is processed into a strip.
% of Ni is arranged, and furthermore, 0.01 to 1 wt % of F is arranged on the outer periphery of this Ag-oxide-based strip.
Form an Ag alloy layer to which one or more of e, Ni, and Mn is added, and set the area ratio of the Ag-Ni alloy to the cross-sectional area of the Ag-oxide material to 5 to 40%. - Ag for electrical contacts characterized in that the area ratio of the Ag alloy layer to the sum of the areas of the Ni alloy is 5 to 35%.
- Oxide-based composite strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63092666A JP2751101B2 (en) | 1988-04-16 | 1988-04-16 | Ag-oxide composite strip for electrical contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63092666A JP2751101B2 (en) | 1988-04-16 | 1988-04-16 | Ag-oxide composite strip for electrical contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01268832A true JPH01268832A (en) | 1989-10-26 |
| JP2751101B2 JP2751101B2 (en) | 1998-05-18 |
Family
ID=14060801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63092666A Expired - Lifetime JP2751101B2 (en) | 1988-04-16 | 1988-04-16 | Ag-oxide composite strip for electrical contact |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2751101B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111868864A (en) * | 2018-03-16 | 2020-10-30 | 田中贵金属工业株式会社 | DC high-voltage relay and contact material for DC high-voltage relay |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5390132A (en) * | 1977-01-21 | 1978-08-08 | Tanaka Precious Metal Ind | Preparation of aggoxide complex contact material |
| JPS5433206A (en) * | 1977-08-20 | 1979-03-10 | Tokuriki Honten Kk | Silver based composite materials and method of making same |
| JPS5647529A (en) * | 1979-09-22 | 1981-04-30 | Matsushita Electric Works Ltd | Manufacture of electric contact material |
-
1988
- 1988-04-16 JP JP63092666A patent/JP2751101B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5390132A (en) * | 1977-01-21 | 1978-08-08 | Tanaka Precious Metal Ind | Preparation of aggoxide complex contact material |
| JPS5433206A (en) * | 1977-08-20 | 1979-03-10 | Tokuriki Honten Kk | Silver based composite materials and method of making same |
| JPS5647529A (en) * | 1979-09-22 | 1981-04-30 | Matsushita Electric Works Ltd | Manufacture of electric contact material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111868864A (en) * | 2018-03-16 | 2020-10-30 | 田中贵金属工业株式会社 | DC high-voltage relay and contact material for DC high-voltage relay |
| CN111868864B (en) * | 2018-03-16 | 2023-02-28 | 田中贵金属工业株式会社 | DC high-voltage relay and contact material for DC high-voltage relay |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2751101B2 (en) | 1998-05-18 |
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