JPS63213224A - Manufacture of electric contact - Google Patents
Manufacture of electric contactInfo
- Publication number
- JPS63213224A JPS63213224A JP4582987A JP4582987A JPS63213224A JP S63213224 A JPS63213224 A JP S63213224A JP 4582987 A JP4582987 A JP 4582987A JP 4582987 A JP4582987 A JP 4582987A JP S63213224 A JPS63213224 A JP S63213224A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- oxide
- oxide material
- sheared
- outer skin
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000000463 material Substances 0.000 claims description 66
- 238000005304 joining Methods 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 239000010953 base metal Substances 0.000 description 10
- 239000000956 alloy Substances 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000003466 welding Methods 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229910017937 Ag-Ni Inorganic materials 0.000 description 1
- 229910017984 Ag—Ni Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
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
この発明は、電磁接触器などに用いられる電気接点の製
造方法に関する。The present invention relates to a method for manufacturing electrical contacts used in electromagnetic contactors and the like.
この分野の電気接点に用いられる接点材料として従来、
Ａｇ、Ａｇ−Ｎｉなとの非酸化物系材料よびＡｇ−Ｃｄ
０．Ａｇ−３ｎＯｚなどの酸化物系材料が知られている
。
このうち、非酸化物系材料は、接点を支持する接点台金
との接合性が良好で、このため接点の合金への接合は製
造上能率の良い抵抗溶接方式、すなわち線状の接点材の
先端断面を合金面へ押圧接触させた状態で接触部を通し
て通電し、接触抵抗により接触部に生ずる熱で接点材を
合金に溶融接合させ、その後台金側に接点１個分を残し
て接点材を切断するという工程を連続的に繰り返す方式
の採用が可能である。
しかしその反面、非酸化物系材料は、電流開閉時の耐溶
着性、耐消耗性等に難点があり寿命が短いという欠点が
ある。
一方、酸化物系材料は、電気的開閉性能は優れているが
、台金との直接的な接合は極めて困難で、接点材の接合
面を酸化しないようにしておくか、他の非酸化物系材料
を予め接合しておくか等により非酸化物層を設けておく
必要がある。しかも、合金への接合にあたっては接点材
を１個１個ロー付は等する必要があり、上記した能率の
良い抵抗溶接方式を用いることができない。Conventionally, the contact materials used for electrical contacts in this field are
Non-oxide materials such as Ag, Ag-Ni and Ag-Cd
0. Oxide-based materials such as Ag-3nOz are known. Among these materials, non-oxide materials have good bonding properties with the contact base metal that supports the contact, and therefore, the contact can be joined to the alloy using resistance welding, which is efficient in manufacturing. Electricity is applied through the contact part with the tip cross section in pressure contact with the alloy surface, and the heat generated at the contact part due to contact resistance melts and joins the contact material to the alloy. After that, the contact material is bonded to the alloy, leaving one contact on the base metal side. It is possible to adopt a method in which the process of cutting is continuously repeated. However, on the other hand, non-oxide materials have drawbacks such as poor adhesion resistance and abrasion resistance during current switching, and a short lifespan. On the other hand, although oxide-based materials have excellent electrical switching performance, it is extremely difficult to bond directly to the base metal, so it is necessary to prevent the bonding surface of the contact material from oxidizing, or use other non-oxide materials. It is necessary to provide a non-oxide layer depending on whether the materials are bonded in advance or the like. Moreover, when joining to the alloy, it is necessary to braze each contact material one by one, making it impossible to use the efficient resistance welding method described above.
このように従来は、線状の接点材を連続的に抵抗溶接す
るという能率のよい製造方法を採用しようとすれば電気
的性能の悪い非酸化物系材料を用いざるを得す、また、
電気的性能の良い酸化物系の材料を用いようとすれば非
能率的な製造方法によらざるを得ないという問題点があ
った。
この発明は、両種の材料を併せ用いてそれぞれの特徴を
発揮させ、能率の良い製造方法を採用しながら電気的性
能の優れた電気接点を得ることのできる電気接点の製造
方法を提供することを目的とするものである。In this way, conventionally, if an efficient manufacturing method of continuous resistance welding of linear contact materials was to be adopted, non-oxide materials with poor electrical performance had to be used.
There is a problem in that if an oxide-based material with good electrical performance is to be used, an inefficient manufacturing method must be used. An object of the present invention is to provide a method for manufacturing an electrical contact that can obtain an electrical contact with excellent electrical performance by using both types of materials in combination to exhibit their respective characteristics and employing an efficient manufacturing method. The purpose is to
この発明は、上記問題点を解決するために、酸化物系材
料の線材に非酸化物系材料の外皮を被着して線状の接点
材を構成し、この接点材を前記外皮を通して剪断する際
に前記外皮を塑性変形させることにより、酸化物系材料
の剪断面に非酸化物系材料の被膜を形成し、この剪断面
を介して酸化物系材料の線材を接点台金に接合するもの
とする。In order to solve the above-mentioned problems, the present invention constructs a linear contact material by covering a wire made of an oxide material with a sheath made of a non-oxide material, and shearing this contact material through the sheath. At the same time, by plastically deforming the outer skin, a film of non-oxide material is formed on the sheared surface of the oxide material, and the wire of the oxide material is joined to the contact base via this sheared surface. shall be.
この発明によれば、接点台金に接合されるべき酸化物系
材料の線材はその剪断面に非酸化物系材料の被膜が形成
されているためこれを合金に容易かつ強固に接合でき、
また接点本体は酸化物系材料で構成されるため電気的性
能も確保される。According to this invention, since the oxide material wire to be joined to the contact base metal has a coating of non-oxide material formed on its sheared surface, it can be easily and firmly joined to the alloy.
Furthermore, since the contact body is made of oxide-based material, electrical performance is also ensured.
以下、図に基づいてこの発明の詳細な説明する。
第１図において、１は線状の複合接点材であって、第５
図に示すように断面円形で、酸化物系材料の線材２に非
酸化物系材料の外皮３をメッキにより被着して構成され
ている。４は接点材の両側に配置された一対のカッタで
、矢印Ｐ方向に前進することにより接点材１を外皮３を
通して剪断する。
カッタ４の切れ刃は、図のように断面三角形状で上面が
傾斜し下面が水平になっている。したがって、接点材を
剪断する際、外皮３は塑性変形されて線材２の剪断面に
非酸化物系材料の被覆５を形成する。
第２図は、矢印Ｑ方向に力を加えて剪断面を台金６に押
圧しながら接点材１と台金６との間に通電し、接触抵抗
による発熱に基づいて接点材１を台金３に溶着した状態
を示す。この場合、被覆５が存在しなければ電気的開閉
性能を維持するだけの充分な接合強度は得られない。
第３図は溶着した接点材を台金６側に接点７の１個分を
残してカッター４で剪断した状態を示し、接点材１側の
剪断面には新たに非酸化物系材料の被膜５．が形成され
次回の作業に備えられる。
以下これらの工程を繰り返す。
第４図は第３図の状態から、必要に応じて接点７を成形
したものである。
第６図はこの発明に用いられる線状の接点材８の異なる
実施例を示すもので、断面４角の酸化物系材料の線材９
の両側面に非酸化物系材料の外皮１０を冷間圧接または
熱間圧接により被着したものである。カッターによる剪
断は外皮１０の両側からこれを通して行われる。外皮１
０は必要とされる溶着強度との関連において片側でもよ
い。その他、必要充分な非酸化物系材料の被覆が形成さ
れる限りにおいて適宜の変形が考えられる。Hereinafter, the present invention will be explained in detail based on the drawings. In FIG. 1, 1 is a linear composite contact material, and 5
As shown in the figure, it has a circular cross section and is constructed by plating a wire 2 made of an oxide material with an outer sheath 3 made of a non-oxide material by plating. A pair of cutters 4 are placed on both sides of the contact material, and move forward in the direction of arrow P to shear the contact material 1 through the outer skin 3. As shown in the figure, the cutting edge of the cutter 4 has a triangular cross section with an inclined upper surface and a horizontal lower surface. Therefore, when the contact material is sheared, the outer skin 3 is plastically deformed to form a coating 5 of non-oxide material on the sheared surface of the wire 2. Fig. 2 shows that power is applied between the contact material 1 and the base metal 6 while applying force in the direction of arrow Q to press the sheared surface against the base metal 6, and the contact material 1 is moved to the base metal based on heat generated by contact resistance. 3 shows the welded state. In this case, if the coating 5 is not present, sufficient bonding strength to maintain electrical switching performance cannot be obtained. Figure 3 shows the state in which the welded contact material is sheared with the cutter 4, leaving one contact 7 on the base metal 6 side, and the sheared surface on the contact material 1 side is newly coated with a non-oxide material. 5. is formed and prepared for the next operation. These steps are then repeated. FIG. 4 shows the state shown in FIG. 3, with contacts 7 formed as necessary. FIG. 6 shows a different embodiment of the linear contact material 8 used in the present invention, in which a wire material 9 made of an oxide material with a square cross section is shown.
An outer skin 10 made of a non-oxide material is attached to both sides of the housing by cold welding or hot welding. Shearing by the cutter is carried out through the skin 10 from both sides. outer skin 1
0 may be on one side in relation to the required welding strength. In addition, appropriate modifications may be made as long as a necessary and sufficient coating of the non-oxide material is formed.
この発明は、酸化物系材料の線材に非酸化物系材料の外
皮を被着した線状の複合接点材を外皮を通して剪断する
ことにより酸化物系材料からなる線材の剪断面に非酸化
物系材料の被膜を形成させるようにしたから、電気的性
能の優れた酸化物系材料を用いながら非酸化物系材料と
同様に線状の接点材を合金に連続的に抵抗溶接するとい
う能率の良い方式を採用できる。すなわち、この発明に
よれば、接点の電気的開閉性能と充分な接合強度を満足
させながら、接点の製造を容易に自動化して製造能率を
向上させることができる。In this invention, by shearing a linear composite contact material in which a wire made of an oxide material is coated with a sheath made of a non-oxide material through the sheath, non-oxide By forming a film of the material, it is possible to use an oxide material with excellent electrical performance while continuously resistance welding the linear contact material to the alloy in the same way as with non-oxide materials. method can be adopted. That is, according to the present invention, it is possible to easily automate the production of contacts and improve production efficiency while satisfying the electrical switching performance and sufficient bonding strength of the contacts.
第１図から第３図はこの発明の方法の工程概略説明図で
ミ第１図は接点材を剪断した状態、第２図は接点材を合
金に接合した状態、第３図は台金側に接点１個分を残し
て接点材を剪断した状態をそれぞれ示す縦断面図である
。第４図は第３図における接点を成形した状態を示す側
面図、第５図および第６図はそれぞれこの発明に用いら
れる接点材の互いに異なる実施例を示す斜視図である。
１：複合接点材
２二酸化物系材料の線材
３：非酸化物系材料の外皮
４：カッタ
５．５．：非酸化物系材料の被覆
６：接点台金
ｕｌ 区Figures 1 to 3 are schematic explanatory diagrams of the process of the method of this invention. Figure 1 shows the state in which the contact material is sheared, Figure 2 shows the state in which the contact material is joined to the alloy, and Figure 3 shows the base metal side. FIG. 3 is a vertical cross-sectional view showing a state in which the contact material is sheared, leaving one contact point. FIG. 4 is a side view showing a molded state of the contact in FIG. 3, and FIGS. 5 and 6 are perspective views showing mutually different embodiments of the contact material used in the present invention. 1: Composite contact material 2 Wire made of dioxide material 3: Outer skin made of non-oxide material 4: Cutter 5.5. : Non-oxide material coating 6: Contact base metal UL
Claims (1)
して線状の接点材を構成し、この接点材を前記外皮を通
して剪断する際に前記外皮を塑性変形させることにより
酸化物系材料の剪断面に非酸化物系材料の被膜を形成し
、この剪断面を介して酸化物系材料の線材を接点台金に
接合することを特徴とする電気接点の製造方法。1) A wire-shaped contact material is formed by covering a wire made of an oxide material with an outer skin made of a non-oxide material, and when the contact material is sheared through the outer skin, the outer skin is plastically deformed to cause oxidation. 1. A method of manufacturing an electrical contact, which comprises forming a film of a non-oxide material on a sheared surface of a physical material, and joining a wire made of an oxide material to a contact base via the sheared surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4582987A JPS63213224A (en) | 1987-02-28 | 1987-02-28 | Manufacture of electric contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4582987A JPS63213224A (en) | 1987-02-28 | 1987-02-28 | Manufacture of electric contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63213224A true JPS63213224A (en) | 1988-09-06 |
| JPH0528454B2 JPH0528454B2 (en) | 1993-04-26 |
Family
ID=12730123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4582987A Granted JPS63213224A (en) | 1987-02-28 | 1987-02-28 | Manufacture of electric contact |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63213224A (en) |
-
1987
- 1987-02-28 JP JP4582987A patent/JPS63213224A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0528454B2 (en) | 1993-04-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |