JPH03258467A - Resistance welding method for copper or copper alloy and iron or iron alloy - Google Patents
Resistance welding method for copper or copper alloy and iron or iron alloyInfo
- Publication number
- JPH03258467A JPH03258467A JP2056060A JP5606090A JPH03258467A JP H03258467 A JPH03258467 A JP H03258467A JP 2056060 A JP2056060 A JP 2056060A JP 5606090 A JP5606090 A JP 5606090A JP H03258467 A JPH03258467 A JP H03258467A
- Authority
- JP
- Japan
- Prior art keywords
- copper
- iron
- alloy
- plating
- resistance
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 49
- 239000010949 copper Substances 0.000 title claims abstract description 44
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 37
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 36
- 229910000640 Fe alloy Inorganic materials 0.000 title claims abstract description 35
- 238000003466 welding Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims description 14
- 238000007747 plating Methods 0.000 claims abstract description 31
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000009792 diffusion process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000006104 solid solution Substances 0.000 description 4
- ALKZAGKDWUSJED-UHFFFAOYSA-N dinuclear copper ion Chemical compound [Cu].[Cu] ALKZAGKDWUSJED-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- NJFMNPFATSYWHB-UHFFFAOYSA-N ac1l9hgr Chemical compound [Fe].[Fe] NJFMNPFATSYWHB-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- ZTXONRUJVYXVTJ-UHFFFAOYSA-N chromium copper Chemical compound [Cr][Cu][Cr] ZTXONRUJVYXVTJ-UHFFFAOYSA-N 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は、例えば電気部品等の組立てにおける、銅・銅
合金と鉄・鉄合金との抵抗溶接方法に関するものである
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of resistance welding copper/copper alloy and iron/iron alloy, for example in the assembly of electrical parts.
［従来の技術］
銅・銅合金（銅乃至銅合金）は、一般に導電性、熱伝導
性に優れていることから、電気部品材料として広く使用
されている。[Prior Art] Copper and copper alloys (copper and copper alloys) are widely used as electrical component materials because they generally have excellent electrical conductivity and thermal conductivity.
電気部品の組立て工程において、抵抗溶接法がよく用い
られている。Resistance welding is often used in the assembly process of electrical parts.
抵抗溶接法は、被溶接材の接合すべき個所に電流を流し
、その電流による抵抗発熱て接合部の温度を上昇させ、
加圧下で溶接を行う方法である。In the resistance welding method, a current is passed through the parts of the materials to be welded, and the current generates resistance heat, raising the temperature of the joint.
This is a method of welding under pressure.
したがって、電気抵抗の小さい銅・銅合金は抵抗発熱が
少ないため抵抗溶接性が良好でなく、例えは強度的に問
題を有していた。とりわけ、銅・銅合金と鉄・鉄合金（
鉄乃至鉄合金）との抵抗溶接は、鉄の融点が１５００℃
以上と高いため、非常に難しいものとなっている。Therefore, copper/copper alloys with low electrical resistance do not have good resistance weldability because they generate little resistance heat generation, and have problems in terms of strength, for example. In particular, copper/copper alloys and iron/iron alloys (
For resistance welding with iron or iron alloys, the melting point of iron is 1500℃.
This is extremely difficult due to the high cost.
［発明が解決しようとする課題］
本発明は、銅・銅合金、さらに鉄・鉄合金の特性を劣化
させることなく銅・銅合金と鉄・鉄合金との抵抗溶接性
を向上させ得る銅・銅合金と鉄・鉄合金との抵抗溶接方
法を提供することを目的とする。[Problems to be Solved by the Invention] The present invention provides a copper-copper alloy that can improve the resistance weldability of copper-copper alloy and iron-iron alloy without deteriorating the properties of copper-copper alloy and iron-iron alloy. The purpose of the present invention is to provide a method of resistance welding between copper alloy and iron/iron alloy.
［課題を解決するための手段コ
本発明の第１の要旨は、銅・銅合金にＮｉめっきをｏ、
ｉ〜１０μｍ厚さ施した後、銅・銅合金と鉄・鉄合金と
の抵抗溶接を行うことを特徴とする銅・銅合金と鉄・鉄
合金との抵抗溶接方法に存在する。[Means for Solving the Problems] The first gist of the present invention is to apply Ni plating to copper/copper alloy.
There exists a method of resistance welding between a copper/copper alloy and an iron/iron alloy, which is characterized in that the copper/copper alloy and the iron/iron alloy are resistance welded after the copper/copper alloy and the iron/iron alloy are welded to a thickness of i to 10 μm.
本発明の第２の要旨は、鉄・鉄合金にＮｉめ）きを０．
１〜１０μｍ厚さ施した後、銅・銅合金と鉄・鉄合金と
の抵抗溶接を行うことを特徴とする銅・銅合金と鉄・鉄
合金との抵抗溶接方法に存在する。The second aspect of the present invention is to apply 0.0% Ni plating to iron/iron alloy.
There exists a method of resistance welding between a copper/copper alloy and an iron/iron alloy, which is characterized in that the copper/copper alloy and the iron/iron alloy are resistance welded after the copper/copper alloy is applied to a thickness of 1 to 10 μm.
本発明の第３の要旨は、銅・銅合金にＮｉめっきを０．
１〜１０μｍ厚さ施し、かつ、鉄・鉄合金にＮｉめっき
を０．１〜１０μｍ厚さ施した後、銅・銅合金と鉄・鉄
合金との抵抗溶接を行うことを特徴とする銅・銅合金と
鉄・鉄合金との抵抗溶接方法に存在する。The third gist of the present invention is to apply Ni plating to copper/copper alloy at 0.00%.
Copper plating is applied to a thickness of 1 to 10 μm, and after Ni plating is applied to iron and iron alloy to a thickness of 0.1 to 10 μm, resistance welding is performed between copper and copper alloy and iron and iron alloy. It exists in resistance welding methods for copper alloys and iron/iron alloys.
［作用］
本発明者は、前述した従来技術の有する課題を解決する
ため、幾多の実験を重ねたところ、銅・銅合金乃至鉄・
鉄合金にＮｉめっきを施すことによって、抵抗溶接性が
満足すべきほどに向上することを見い出し、本発明をな
すにいたった。[Function] In order to solve the problems of the prior art mentioned above, the present inventor conducted numerous experiments and found that copper/copper alloy or iron/copper alloy
It has been discovered that resistance weldability can be satisfactorily improved by applying Ni plating to an iron alloy, and the present invention has been completed.
本発明に係るＮｉめっき厚さの限定理由について説明す
る。The reason for limiting the Ni plating thickness according to the present invention will be explained.
銅・銅合金にＮｉめっきを施すと、抵抗溶接性が向上す
る理由は次にあると推測される。第１の理由は、抵抗溶
接時の瞬間的な加熱による酸化か低減することである。It is presumed that the reason why resistance weldability is improved when copper/copper alloy is plated with Ni is as follows. The first reason is to reduce oxidation caused by instantaneous heating during resistance welding.
第２の理由は、Ｎｉの電気抵抗が銅・銅合金よりも高い
ため、抵抗発熱量が多いことである。第３の理由は、Ｃ
ｕとＦｅとの相互の固溶よりも、ＮｉとＦｅとの相互の
固溶の方が起りやすく、したがって溶接時の相互拡散が
大きいことである。第１の理由に対しては、Ｎｉめっき
は０．１μｍ以上施することが必要である。第２の理由
に対しては、Ｎｉめつきは厚いほど効果があるが、１０
μｍを越える厚さにめっきを施しても効果は飽和するだ
けでなく、コスト増加、生産性低下、さらには銅の特徴
である導電性の低下をもきたすので好ましくない。第３
の理由に対しても、抵抗溶接による接合部分の拡散層の
厚さが１０μｍ程度であるため、Ｎｉめっきの厚さも１
０μｍあれば十分である。よって銅・銅合金に施すＮ１
めっき厚さは０．１〜１０μｍとする。The second reason is that the electrical resistance of Ni is higher than that of copper/copper alloy, so the amount of heat generated by the resistance is large. The third reason is C.
Mutual solid solution of Ni and Fe is more likely to occur than mutual solid solution of u and Fe, and therefore mutual diffusion during welding is large. For the first reason, it is necessary to apply Ni plating to a thickness of 0.1 μm or more. Regarding the second reason, the thicker the Ni plating, the more effective it is.
Even if plating is applied to a thickness exceeding .mu.m, the effect not only reaches saturation, but also increases cost, decreases productivity, and furthermore causes a decrease in conductivity, which is a characteristic of copper, which is not preferable. Third
Regarding the reason for this, since the thickness of the diffusion layer at the joint by resistance welding is approximately 10 μm, the thickness of the Ni plating is also approximately 1 μm.
0 μm is sufficient. Therefore, N1 applied to copper/copper alloy
The plating thickness is 0.1 to 10 μm.
次に、鉄・鉄合金にＮｉめっきを施すと抵抗溶接性が向
上する第１の理由は、抵抗溶接時の瞬間的な加熱による
酸化が低減することである。第２の理由はＦｅとＣｕと
の相互の固溶より、Ｎ１とＣｕとの相互の固溶の方が起
りやすく、したがって、溶接時の相互拡散が大きいこと
である。第１の理由に対しては、Ｎ１めっきは０．１μ
ｍ施すことが必要である。第２の理由に対しては、抵抗
溶接にｒる接合部分の拡散層の厚さが１０μｍ程度であ
るため、Ｎｉめっきの厚さも１０μｍあれば十分である
。１０μｍを越える厚さにめっきを施しても効果は飽和
するだけでなく、コスト増加、生産性低下をきたすので
好ましくない。よって、鉄・鉄合金に施すＮｉめっき厚
さは０．１〜１０μｍとする。Next, the first reason why resistance weldability is improved when Ni plating is applied to iron/iron alloy is that oxidation caused by instantaneous heating during resistance welding is reduced. The second reason is that mutual solid solution of N1 and Cu occurs more easily than mutual solid solution of Fe and Cu, and therefore, mutual diffusion during welding is large. For the first reason, N1 plating is 0.1μ
It is necessary to apply m. Regarding the second reason, since the thickness of the diffusion layer of the joint portion in resistance welding is about 10 μm, it is sufficient if the thickness of the Ni plating is also 10 μm. Even if plating is applied to a thickness exceeding 10 μm, the effect not only reaches saturation, but also increases cost and reduces productivity, which is not preferable. Therefore, the thickness of Ni plating applied to iron/iron alloy is 0.1 to 10 μm.
［実施例］
第１表に示す組成および特性の銅・銅合金と鉄・鉄合金
について抵抗溶接性を試験した。[Example] Resistance weldability was tested for copper/copper alloys and iron/iron alloys having the compositions and properties shown in Table 1.
すなわち、銅・銅合金としてＯＦＣ（無酸素純銅）とＦ
ｅ−Ｐ−Ｃｕを用いた。銅・銅合金は各々０．４ｍｍ厚
さの板に調整した。一方、鉄・鉄合金として５ＰＣＣ（
Ｆｅ−０，０８％Ｃ）を用いた。鉄・鉄合金は１．９ｒ
ｏｍ厚さの板に調整した。In other words, OFC (oxygen-free pure copper) and F are used as copper and copper alloys.
e-P-Cu was used. Copper and copper alloy were each adjusted to a plate with a thickness of 0.4 mm. On the other hand, 5PCC (
Fe-0,08%C) was used. 1.9r for iron and iron alloys
Adjusted to a plate with a thickness of 1.5 oz.
次いで、第１図に示すような、１０ｍｍ幅、７０ｍｍ長
さの抵抗溶接試験片を作製した。Next, a resistance welding test piece having a width of 10 mm and a length of 70 mm as shown in FIG. 1 was prepared.
試験片は、棟材と、Ｎｉめっきを０．１μｍ、１．０μ
ｍ、１０μｍ、および２０μｍ各々施したものとを用い
、この試験片につき抵抗溶接試験を行った。The test piece was made of ridge material and Ni plating of 0.1μm and 1.0μm.
A resistance welding test was conducted on this test piece using the test piece having a thickness of 10 μm, 10 μm, and 20 μm.
抵抗溶接試験条件は、溶接エネルギー２００Ｗ−Ｓ、加
圧力５ｋｇ ｆとし、電極は８ｍｍφのクロム銅電極を
用いた。評価は、抵抗溶接後の試験片を第１図に矢印で
示す方向に引張った時の引張せん断強度の比較によって
行った。試験数ｎ＝５の平均値を第２表に示す。The resistance welding test conditions were a welding energy of 200 W-S, a pressing force of 5 kg f, and a chromium copper electrode with a diameter of 8 mm was used. The evaluation was performed by comparing the tensile shear strength when the test piece after resistance welding was pulled in the direction shown by the arrow in FIG. Table 2 shows the average values of the number of tests (n=5).
さらに、第２図には、Ｎｉめつき１μｍを施した○ＦＣ
と、Ｎｉめつきを各種厚さに施した５ＰＣＣとの抵抗溶
接性を、第３図には、Ｎｉめっき１μｍを施した５ｐｃ
ｃとＮｉめつきを各種厚さに施した○ＦＣとの抵抗溶接
性を、引張せん断強度の値で示した。Furthermore, Fig. 2 shows ○FC with Ni plating of 1 μm.
Figure 3 shows the resistance weldability of 5PCC with Ni plating of various thicknesses.
The resistance weldability of C and FC with Ni plating of various thicknesses was shown in terms of tensile shear strength.
第２表、第３図および第４図から明らかなように、銅・
銅合金と鉄・鉄合金のどちらか一方または両方にＮｉめ
っきを施すことにより抵抗溶接性は飛躍的に向上してい
ることがわかる。また、１０μｍを越えるＮｉめつきは
ほとんどが効果が飽和していることがわかる。As is clear from Table 2, Figures 3 and 4, copper
It can be seen that resistance weldability is dramatically improved by applying Ni plating to either or both of the copper alloy and the iron/iron alloy. Furthermore, it can be seen that the effect of most Ni plating exceeding 10 μm is saturated.
［発明の効果］
以上述へたように、本発明による方法で、従来困難とさ
れていた、銅・銅合金と鉄・鉄合金との抵抗溶接性が飛
躍的に向上すると同時に耐食性も向上するものである。[Effects of the Invention] As described above, the method according to the present invention dramatically improves resistance weldability between copper/copper alloy and iron/iron alloy, which had been considered difficult in the past, and at the same time improves corrosion resistance. It is something.
この技術は電気部品の組立て工程の簡略化および電気部
品の信頼向上といった要望に応えられるものである。This technology can meet the demands of simplifying the assembly process of electrical components and improving the reliability of electrical components.
第２表（その１） 第２表（その２）Table 2 (Part 1) Table 2 (Part 2)
Ｓ１図は、実施例における試験片の寸法、抵抗溶接位置
、および試験片め引張方向を示す概念図である。第２図
は、実施例におけるＮｉめっき１μｍ２ｉｆｌｉしたＯ
ＦＣとＮｉめっき各厚さの５ｐｃｃとの抵抗溶接性を引
張せん断強度の値で示したグラフである。￥Ｓ３図は、
実施例における、Ｎｉめっきを１μｍ施した５ｐｃｃと
Ｎｉめっき各厚さのＯＦＣとの抵抗溶接性を引張せん断
強度の値で示したグラフである。Figure S1 is a conceptual diagram showing the dimensions of the test piece, the resistance welding position, and the tensile direction of the test piece in the example. Figure 2 shows the Ni plating of 1μm2ifli in the example.
It is a graph showing the resistance weldability of FC and Ni plating of each thickness of 5 pcc in terms of tensile shear strength values. ¥S3 figure is
It is a graph showing the resistance weldability of 5pcc with Ni plating of 1 μm and OFC of each thickness of Ni plating in terms of tensile shear strength values in Examples.
Claims (3)
施した後、銅・銅合金と鉄・鉄合金との抵抗溶接を行う
ことを特徴とする銅・銅合金と鉄・鉄合金との抵抗溶接
方法。(1) Copper/copper alloy and iron/iron characterized by applying Ni plating to a thickness of 0.1 to 10 μm on copper/copper alloy and then resistance welding the copper/copper alloy and iron/iron alloy. Method of resistance welding with alloys.
施した後、銅・銅合金と鉄・鉄合金との抵抗溶接を行う
ことを特徴とする銅・銅合金と鉄・鉄合金との抵抗溶接
方法。(2) Copper/copper alloy and iron/iron alloy, characterized in that after Ni plating is applied to the iron/iron alloy to a thickness of 0.1 to 10 μm, resistance welding is performed between the copper/copper alloy and the iron/iron alloy. Resistance welding method with iron alloys.
施し、かつ、鉄・鉄合金にＮｉめっきを０．１〜１０μ
ｍ厚さ施した後、銅・銅合金と鉄・鉄合金との抵抗溶接
を行うことを特徴とする銅・銅合金と鉄・鉄合金との抵
抗溶接方法。(3) Copper and copper alloys are plated with Ni to a thickness of 0.1 to 10μm, and iron and iron alloys are plated with Ni to a thickness of 0.1 to 10μm.
A method of resistance welding between copper/copper alloy and iron/iron alloy, characterized by performing resistance welding of copper/copper alloy and iron/iron alloy after the copper/copper alloy is applied to a thickness of m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2056060A JP2763365B2 (en) | 1990-03-07 | 1990-03-07 | Resistance welding method of copper / copper alloy and iron / iron alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2056060A JP2763365B2 (en) | 1990-03-07 | 1990-03-07 | Resistance welding method of copper / copper alloy and iron / iron alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03258467A true JPH03258467A (en) | 1991-11-18 |
| JP2763365B2 JP2763365B2 (en) | 1998-06-11 |
Family
ID=13016542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2056060A Expired - Lifetime JP2763365B2 (en) | 1990-03-07 | 1990-03-07 | Resistance welding method of copper / copper alloy and iron / iron alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2763365B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6681484B1 (en) * | 1999-09-02 | 2004-01-27 | Murata Manufacturing Co., Ltd. | Method for manufacturing electronic component |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5370057A (en) * | 1976-12-03 | 1978-06-22 | Nippon Electric Co | Resistance welding method of two portion materials |
| JPS54132448A (en) * | 1978-04-06 | 1979-10-15 | Japanese National Railways<Jnr> | Welding method for copper or copper alloy parts and ferro or nickel alloy parts |
| JPS5677080A (en) * | 1979-11-30 | 1981-06-25 | Mitsubishi Heavy Ind Ltd | Lining of corrosion-resistant material |
-
1990
- 1990-03-07 JP JP2056060A patent/JP2763365B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5370057A (en) * | 1976-12-03 | 1978-06-22 | Nippon Electric Co | Resistance welding method of two portion materials |
| JPS54132448A (en) * | 1978-04-06 | 1979-10-15 | Japanese National Railways<Jnr> | Welding method for copper or copper alloy parts and ferro or nickel alloy parts |
| JPS5677080A (en) * | 1979-11-30 | 1981-06-25 | Mitsubishi Heavy Ind Ltd | Lining of corrosion-resistant material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6681484B1 (en) * | 1999-09-02 | 2004-01-27 | Murata Manufacturing Co., Ltd. | Method for manufacturing electronic component |
| US6995332B2 (en) | 1999-09-02 | 2006-02-07 | Murata Manufacturing Co., Ltd. | Resistance welding method and structure of resistance welding part, and method for manufacturing electronic component and electronic component |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2763365B2 (en) | 1998-06-11 |
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