JP6542527B2 - Electrical contact and method of manufacturing the same - Google Patents
Electrical contact and method of manufacturing the same Download PDFInfo
- Publication number
- JP6542527B2 JP6542527B2 JP2014232164A JP2014232164A JP6542527B2 JP 6542527 B2 JP6542527 B2 JP 6542527B2 JP 2014232164 A JP2014232164 A JP 2014232164A JP 2014232164 A JP2014232164 A JP 2014232164A JP 6542527 B2 JP6542527 B2 JP 6542527B2
- Authority
- JP
- Japan
- Prior art keywords
- brazing material
- brazing
- layer
- electrical contact
- material layer
- 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.)
- Active
Links
Images
Landscapes
- Manufacture Of Switches (AREA)
- Contacts (AREA)
Description
本発明は、電気接点およびその製造方法に関する。
The present invention relates to an electrical contact and a method of manufacturing the same.
マグネットスイッチ、ブレ−カ、リレ−等の回路遮断器や電磁開閉器の有接点制御機器に使用されている電気接点は、台材に接合するために、電気接点の接合面にろう材層を設けた電気接点が多く使用されており（例えば、特許文献1、特許文献２）、これらの電気接点は、その台材との接合において、自動機による自動接合化が進んでいる。
自動機による自動接合の場合、接合前の電気接点の接合面側（ろう材層が設けられている側）と接点材料面側との判別が必要であり、その判別にはカメラを用いた画像判別機等が用いられている。
The electrical contacts used in circuit breakers such as magnet switches, brakes and relays, and in contact control devices for electromagnetic switches use a brazing material layer on the joint surface of the electrical contacts in order to join the base material. Many of the provided electrical contacts are used (e.g.,
In the case of automatic bonding by an automatic machine, it is necessary to distinguish between the bonding surface side (the side on which the brazing material layer is provided) of the electric contact before bonding and the contact material surface side. Discriminators and the like are used.
このような一般的な電気接点においては、電気接点の接合面側と接点材料面側が同系統の色であることや両面ともに光沢があることなど外観上の特徴が類似していることから画像判別機等において両面の誤判定が生じ易いという問題がある。
また、接合面側にろう材層を有しない電気接点においては、接合面判断のために、接合面側にプレス等によって凹型等の判別マークを付加しているものもあり、一定の効果を上げているが、接合面側にろう材層を有するものにおいては、あらかじめ用意された電気接点の接合面側にろう材を溶融させて接合することによってろう材層を形成するため、ろう材層を形成後にプレス等による判別マークの形成は困難であり、画像判別装置等による接合面側判別の誤判定が発生しやすい問題がある。
In such a general electrical contact, the appearance is similar because the contact side of the electrical contact and the contact material side have the same color in the same system, and both sides have gloss, such as having gloss on both sides. There is a problem that misjudgment on both sides easily occurs in machines and the like.
In the case of electrical contacts that do not have a brazing material layer on the bonding surface side, there are cases where a discrimination mark such as a concave is added to the bonding surface side by pressing etc. for bonding surface judgment. However, in the case of having a brazing material layer on the joining surface side, the brazing material layer is formed by melting and joining the brazing material on the joining surface side of the electrical contact prepared in advance. Formation of the discrimination mark by a press or the like is difficult after formation, and there is a problem that erroneous determination of the bonding surface side discrimination by an image discrimination device or the like is likely to occur.
さらに、台材に電気接点を接合させる際にスポット溶接が用いられる場合、接合面に判別マークの凹部がある場合、接合時に凹部の内側でスパークが生じて接合品質に悪影響を与えることになるために、接合面に凹部がある電気接点はスポット溶接による接合には適さないという問題がある。 Furthermore, when spot welding is used when joining the electrical contacts to the base material, if there is a recess of the discrimination mark on the joining surface, a spark will be generated inside the recess during joining to adversely affect the joining quality. In addition, there is a problem that the electrical contact having a recess in the joint surface is not suitable for spot welding.
そこで本発明は、接点材料である板素材の台材への接合面側にろう材層を有する電気接点において、ろう材層の表面に凸型部を形成することにより、画像判別機によるろう材層の判別率を劇的に向上させると共に電気接点と台材との接合にスポット溶接を用いる場合、ろう材層に設けた凸型部がプロジェクションとして作用し、電気接点と台材との接合が適切に行われ、耐剥離荷重を向上させることができる。
このような電気接点の製造方法は、まず、接点材料の板素材を所望の形状に加工する。この加工方法は、溶解法、粉末焼結法、プレス成型、ダイス引き等一般的な電気接点の製造方法を用いる。
Therefore, according to the present invention, in the electric contact having the brazing material layer on the side of the joining surface to the base material of the plate material which is the contact material, forming the convex portion on the surface of the brazing material layer If spot welding is used to join the electrical contact and the base material while dramatically improving the discrimination rate of the layer, the convex part provided on the brazing material layer acts as a projection and the junction between the electrical contact and the base material Properly performed, the peel resistance can be improved.
In the method of manufacturing such an electrical contact, first, a plate material of the contact material is processed into a desired shape. This processing method uses a general manufacturing method of electrical contacts such as a melting method, a powder sintering method, press molding, and die drawing.
さらに、必要に応じて、接点材料の板素材裏面（台材に接合する側）に銀等による接合層を形成しておく。この板素材裏面もしくは接合層面にろう材層を形成する一例を以下に説明する。
ろう材層と凸型部の製造方法として、接点材料の板素材裏面にろう材を接合するに際して、板素材とろう材の両者を非酸化雰囲気に保たれた加熱炉内を通過させ、ろう材の固相点以上の適正な温度に加熱してその状態で密着させ、圧力を加えた時点で接点材料の板素材についてはろう材の固相点以下を保ちつつろう材については固相点以上で液相点以下の温度に上昇させる。
Further, as required, a bonding layer of silver or the like is formed on the back surface of the plate material of the contact material (the side to be bonded to the base material). An example of forming a brazing material layer on the back surface of the plate material or on the surface of the bonding layer will be described below.
As a method of manufacturing the brazing material layer and the convex portion, when joining the brazing material to the back surface of the plate material of the contact material, both the plate material and the brazing material are allowed to pass through the heating furnace maintained in a nonoxidizing atmosphere It is heated to an appropriate temperature above the solidus point and brought into close contact in that state, and when pressure is applied, the plate material of the contact material is kept below the solidus point of the brazing material while keeping below the solidus point of the brazing material To a temperature below the liquidus point.
このようにして、複合時のみろう材が半溶融の状態にして表面に所望形状の凹部を設けた加圧用のロールでろう材層を圧加することによって半溶融のろう材が凹部に満遍なく流れ込み、ろう材層表面に、膨らんでなだらかな山形状で丸みをおびたものではなく上部周囲に稜線が形成されたようなシャープな形状の凸型部を確実に形成することができる。
なお、この凸型部の形状は、自動判別機によって判別可能な凸型部の高さを０．０３ｍｍ以上とし、その形状は円形、四角形等様々な形状が選択でき、凸型部の形成個所は、ろう材層の中央に限らずどの個所でもよいが、一定した個所の方が画像判別機に対しては都合がよい。
In this way, the brazing material in the semi-molten state only during compounding and pressing the brazing material layer with a pressure roll provided with a recess of a desired shape on the surface uniformly flows the semi-melting brazing material into the recess evenly. On the surface of the brazing material layer, it is possible to reliably form a convex-shaped portion having a bulging, gentle mountain shape and not being rounded, but having a sharp shape with ridge lines formed around the upper portion.
As for the shape of this convex part, the height of the convex part that can be discriminated by the automatic discrimination device is 0.03 mm or more, and various shapes such as circular and square can be selected. Is not limited to the center of the brazing material layer, but may be any place, but a fixed place is more convenient for the image discriminator.
また、ろう材層および凸型部の製造方法は上記の方法でなくてもよく、治具を用いて凸型部を形成するようにしてもよい。
上記のろう材層の形成方法は、冷間圧接、温間圧接、熱間圧接、スポット溶接、抵抗溶接、炉中圧接等があり上記の要件を満たして行えばどのような方法でもよい。
また、使用するろう材は、成分がＪＩＳで定めるＢＡｇ−１、２、３、４、５、６、７、８のいずれか、ＪＩＳで定めるＢＣｕＰ−１、２、３、４、５、６のいずれかがよい。
Further, the method of manufacturing the brazing material layer and the convex portion may not be the above method, and the convex portion may be formed using a jig.
The brazing material layer may be formed by cold pressure welding, warm pressure welding, hot pressure welding, spot welding, resistance welding, pressure welding in a furnace, or the like as long as the above requirements are satisfied.
Further, the brazing material to be used is any one of BAg-1, 2, 3, 4, 5, 6, 7 and 8 whose components are defined by JIS, and BCuP-1, 2, 3, 4, 5, 6 which is defined by JIS. One of the better.
以下に本発明の実施例を説明する。なお、本発明の実施形態は、下記の実施例に限定されるものではなく、目的とする電気接点材料の寸法や特性により適宜調整することができるものである。 Examples of the present invention will be described below. In addition, embodiment of this invention is not limited to a following example, It can adjust suitably with the dimension and characteristic of the target electrical contact material.
以下に図１および図２を用いて説明する。
溶解法で得られた９３Ａｇ−５．０Ｓｎ−２．０Ｉｎを、圧延、焼鈍を繰り返し、所望の形状の接点材料の板素材を得る。
上記板素材の片面に、接合層を形成する純銀層を複合する。この純銀層の厚さは、板素材の１０％程度であり、得られた複合板素材を圧延して板厚１．５ｍｍに仕上げる。
その板素材から、プレス打ち抜き加工により、１０ｍｍ角の四角形状の接点材料を得る。
This will be described below with reference to FIGS. 1 and 2.
Rolling and annealing are repeated for 93Ag-5.0Sn-2.0In obtained by the melting method to obtain a plate material of a contact material of a desired shape.
The pure silver layer which forms a joining layer is compounded on one side of the above-mentioned board material. The thickness of this pure silver layer is about 10% of the plate material, and the obtained composite plate material is rolled to a plate thickness of 1.5 mm.
From the plate material, a square contact material of 10 mm square is obtained by press punching.
このようにして得られた接点材料を、バレル研磨、内部酸化処理を施した後、仕上げの光沢出し用バレル研磨を施し、温間圧接により接合面（台材への接合面側）に対して厚さ０．０５ｍｍ×□１０ｍｍのＢＡｇ−１によるろう材層を形成した。
この接点材料にろう材を接合するに際して、接点材料とろう材の両者を非酸化雰囲気に保たれた加熱炉内を通過させ、ろう材の固相点以下の適正な温度に加熱してその状態で密着させ、圧力を加えた時点で、接点材料についてはろう材の固相点以下を保ちつつろう材については固相点以上で液相点以下の温度に上昇させる。
The contact material thus obtained is subjected to barrel polishing and internal oxidation treatment, and then subjected to barrel polishing for finishing a finish for glossing, and to a bonding surface (bonding surface side to a base material) by warm pressure welding. A brazing material layer of BAg-1 having a thickness of 0.05 mm × 10 mm was formed.
When joining a brazing material to this contact material, both the contact material and the brazing material are passed through the heating furnace maintained in a non-oxidizing atmosphere, and heated to an appropriate temperature below the solid phase point of the brazing material and its state When the pressure is applied, the temperature of the contact point material is raised to the temperature below the liquid phase point above the solid phase point while maintaining below the solid phase point of the brazing material.
このようにして、複合時にろう材が半溶融の状態にし、表面に所望形状の凹部を設けた加圧用のロールでろう材層を圧加することによって半溶融のろう材をその凹部に満遍なく充満させることによってろう材層に上部に稜線が形成されたシャープな形状で、０．０３ｍｍの厚みの円形の凸型部を形成する（図１、図２）。
図において、１は接点材料の板素材である接点材層、２は接合層、３はろう材層、４はろう材層３に形成した凸型部である。
In this way, the brazing material is brought into a semi-molten state at the time of compounding, and by pressing the brazing material layer with a pressure roll having a recess of a desired shape on the surface, the semi-molten brazing material fills the recess evenly. In this way, a round convex portion with a thickness of 0.03 mm is formed in a sharp shape in which ridge lines are formed on the upper portion of the brazing material layer (FIG. 1, FIG. 2).
In the figure, 1 is a contact material layer which is a plate material of a contact material, 2 is a bonding layer, 3 is a brazing material layer, 4 is a convex portion formed on the
このようにして得たサンプル、および比較例として、凸型部の厚み０．０３ｍｍ×□１．０ｍｍ、厚み０．０２ｍｍ×φ１．０ｍｍ、凸型部なしとしたサンプルをそれぞれ１００個作製した。
このようにして得られた電気接点を、カメラを用いた画像判別装置を用いてろう材層判別試験を行った。
つぎに、上記電気接点を、スポット溶接機を用いてＣｕ台材に接合した後、引っ張り試験機を用いてその接合面に平行な向きに荷重を加えて剥離荷重の測定を行った。その結果を表１に示す。
The samples thus obtained and 100 samples each having a convex portion with a thickness of 0.03 mm × □ 1.0 mm, a thickness of 0.02 mm × φ 1.0 mm, and no convex portion were produced as Comparative Example.
The brazing material layer discrimination test was performed on the electrical contacts obtained in this manner using an image discrimination apparatus using a camera.
Next, after joining the said electrical contact to Cu base material using a spot welder, load was applied in the direction parallel to the joining surface using a tension tester, and the peeling load was measured. The results are shown in Table 1.
実験の結果、サンプルＡおよびサンプルＢは画像判定装置による成功率が１００％であると共に剥離荷重も１０％程度の向上が確認された。 As a result of the experiment, the success rate of the sample A and the sample B was 100%, and the peeling load was also improved by about 10%.
本発明の電気接点によると、ろう材層に同材により膨らんだ山形状でなく上部周囲に稜線を有するようなシャープな形状の凸型部を形成したことにより、カメラ等を用いた画像判定装置でのろう材側面の誤判断をなくすことができ、生産性の向上をはかることができる。
さらに、凸型部により、スポット接合時のプロジェクションの作用が得られ、剥離荷重の向上を図ることができ、製品の信頼性および耐久性の向上が得られた。
According to the electrical contact of the present invention, an image determination apparatus using a camera or the like is formed by forming in the brazing material layer a sharp convex portion having a ridge line around the upper portion instead of a mountain shape expanded by the same material. Mistaken judgments on the side of the brazing material can be eliminated, and productivity can be improved.
Furthermore, the action of the projection at the time of spot bonding can be obtained by the convex portion, the peeling load can be improved, and the reliability and durability of the product can be improved.
１ 接点材層
２ 接合層
３ ろう材層
４ 凸型部
1
Claims (5)
ろう材層の台材に接合する面に、上部周囲の稜線がシャープでしかも厚さ０．０３ｍｍ以上とした凸型部を単数設けたことを特徴とする電気接点。
In an electrical contact having a brazing material layer on the side of the joining surface of a plate material which is a contact material to a base material,
An electric contact characterized in that a single convex portion having a sharp ridge line around the upper portion and a thickness of 0.03 mm or more is provided on a surface to be joined to a base material of a brazing material layer.
In the method of manufacturing an electrical contact according to claim 1 or 2, when joining the brazing material layer to the plate material which is the contact material, both the plate material and the brazing material pass through the inside of the heating furnace maintained in a non-oxidizing atmosphere. Heat to an appropriate temperature below the solidus point of the braze material and adhere in that state, and when pressure is applied, the plate material maintains its solidus point below the braze material solid The temperature is raised above the phase point to the temperature below the liquid phase point, the brazing filler metal layer is in a semi-molten state at the time of composite, and the pressing is performed with a pressing roll provided with recesses of a desired shape on the surface. A method of manufacturing an electrical contact characterized in that the solder of a molten brazing filler metal layer is uniformly filled in the concave part thereof to form a sharp convex part having a ridge formed on the upper part in the brazing filler metal layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014232164A JP6542527B2 (en) | 2014-11-14 | 2014-11-14 | Electrical contact and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014232164A JP6542527B2 (en) | 2014-11-14 | 2014-11-14 | Electrical contact and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2016096078A JP2016096078A (en) | 2016-05-26 |
| JP6542527B2 true JP6542527B2 (en) | 2019-07-10 |
Family
ID=56071293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014232164A Active JP6542527B2 (en) | 2014-11-14 | 2014-11-14 | Electrical contact and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6542527B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5682512A (en) * | 1979-12-08 | 1981-07-06 | Tanaka Precious Metal Ind | Electric contact |
| JP4279645B2 (en) * | 2003-10-08 | 2009-06-17 | 田中貴金属工業株式会社 | Band-shaped electrical contact material and method for producing the same |
-
2014
- 2014-11-14 JP JP2014232164A patent/JP6542527B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016096078A (en) | 2016-05-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106041284B (en) | Resistance welding electrode and the method for utilizing its welding steel and Al alloy parts | |
| JP2013514188A (en) | Conductive composite component and method of manufacturing the same | |
| JP6016095B2 (en) | Joining method and joining parts | |
| US20110089153A1 (en) | combination structure of bottom of pan (kettle) body and heating apparatus | |
| US2284504A (en) | Composite laminated plate stock | |
| JP5937214B2 (en) | Solder alloy for metal bonding and soldering method using the same | |
| JP6542527B2 (en) | Electrical contact and method of manufacturing the same | |
| JP2005103556A (en) | Method for joining aluminum alloy die-cast member | |
| US2824365A (en) | Soldering of aluminum base metals | |
| JP2013043184A (en) | Method for caulking magnesium alloy plate | |
| US3011255A (en) | Method for joining clad rods and wires or the like | |
| CN109894727A (en) | Method for combining hot stamping steel sheet | |
| JP2006130559A (en) | Method for repairing sheet metal and pulling-out member used for it | |
| CN109414777B (en) | Use of an alloy as a brazing alloy, a brazing joint for an electrical switch, an electrical switch and a method for manufacturing a brazing joint for an electrical switch | |
| US2114837A (en) | Method of resistance butt welding | |
| JP6122519B2 (en) | Manufacturing method of integral member | |
| CN112638567B (en) | Method for producing at least one defined connection layer between two components made of different metals | |
| JP2016015483A (en) | Method for sealing package and sealing paste | |
| US20200316709A1 (en) | Joining of al-si coated press hardened steel using flash butt welding | |
| US20100147929A1 (en) | Method for joining metals | |
| JP2018114536A (en) | Joining method and joined body | |
| JP2961725B2 (en) | Joining method of metal sintered material | |
| JP2563687B2 (en) | Tile with stud and method for manufacturing the same | |
| JP2024000692A (en) | Junction structure and junction method | |
| JP2004188482A (en) | Brazing method for composite brazing material having a plurality of kinds of metallic layers and brazed product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20171113 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20180725 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20180814 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20181009 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20181030 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20181130 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20190514 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20190613 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 6542527 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |