JPH0683905B2 - Electrode material for resistance welding - Google Patents

Electrode material for resistance welding

Info

Publication number
JPH0683905B2
JPH0683905B2 JP8719984A JP8719984A JPH0683905B2 JP H0683905 B2 JPH0683905 B2 JP H0683905B2 JP 8719984 A JP8719984 A JP 8719984A JP 8719984 A JP8719984 A JP 8719984A JP H0683905 B2 JPH0683905 B2 JP H0683905B2
Authority
JP
Japan
Prior art keywords
coating layer
alloy
welding
electrode
electrode material
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.)
Expired - Lifetime
Application number
JP8719984A
Other languages
Japanese (ja)
Other versions
JPS60231597A (en
Inventor
悟 高野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP8719984A priority Critical patent/JPH0683905B2/en
Publication of JPS60231597A publication Critical patent/JPS60231597A/en
Publication of JPH0683905B2 publication Critical patent/JPH0683905B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0205Non-consumable electrodes; C-electrodes

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、抵抗溶接用電極材料に関するものである。TECHNICAL FIELD The present invention relates to an electrode material for resistance welding.

(背景技術) 近年、例えば自動車工業における軟鋼板や亜鉛めっき鋼
板の接合などに、生産性の高いスポット溶接が多用され
るようになり、このような溶接に使用される電極用材料
には従来Cu-Cr合金、Cu-Cr-Zr合金、Cu-Be-Co合金等が
用いられてきた。
(Background Art) In recent years, spot welding with high productivity has come to be frequently used for joining mild steel sheets and galvanized steel sheets in the automobile industry, for example, and the conventional electrode material used for such welding is Cu. -Cr alloy, Cu-Cr-Zr alloy, Cu-Be-Co alloy, etc. have been used.

このような溶接用電極は、溶接時に大電流を必要とし、
又連続的に使用されるため、高温になり、先端部が割れ
るとか、変形するとか、損耗し易いという問題がある。
Such a welding electrode requires a large current during welding,
Further, since it is continuously used, there is a problem that the temperature becomes high and the tip portion is cracked, deformed, or easily worn.

従ってスポット溶接、シーム溶接等の抵抗溶接に用いら
れる溶接用電極材料として必要な一般的な特性は次のよ
うなものである。
Therefore, the general characteristics required as a welding electrode material used in resistance welding such as spot welding and seam welding are as follows.

良好な電気、熱の伝導性:前述のように電極には大電
流を流す必要があるため、電気抵抗による発熱が多くな
いことと、発熱した熱は速やかに伝導されて冷却される
必要がある。
Good electrical and thermal conductivity: As mentioned above, it is necessary to pass a large current through the electrode, so there is not much heat generation due to electrical resistance, and the heat generated must be quickly conducted and cooled. .

耐変形性:スポット溶接では溶接時に電極先端に強い
圧縮応力が負荷されるため、500℃以上の高温ならびに
室温での機械的な強度が必要である。電極先端が変形し
たり、クラックが生じたりした場合には、溶接部分に十
分な応力が均一に負荷され難く、溶接強度や溶着部の外
観にも悪影響を与える。
Deformation resistance: In spot welding, a strong compressive stress is applied to the tip of the electrode during welding, so mechanical strength at high temperatures of 500 ° C or higher and at room temperature is required. When the tip of the electrode is deformed or cracks are generated, it is difficult to apply sufficient stress to the welded portion uniformly, which adversely affects the weld strength and the appearance of the welded portion.

溶着がないこと:電極用材料と被溶接材料とが合金化
し易い場合などには電極先端に被溶接材料が溶着し易く
なるが、溶着は溶接の妨げとなるため、溶着のないこと
が望まれる。
No welding: When the electrode material and the material to be welded are easily alloyed, the material to be welded is likely to be welded to the tip of the electrode, but since welding interferes with welding, it is desirable that there is no welding. .

製造のし易さと価格:合金自身の製造のし易さや、溶
接用電極への加工性に優れることや、消耗品として低価
格であることが望まれる。
Ease of manufacture and price: It is desired that the alloy itself be easy to manufacture, that it has excellent workability for welding electrodes, and that it is a low price as a consumable item.

従来用いられたCu-Cr合金、Cu-Cr-Zr合金、Cu-Be-Co合
金などには、上述の必要特性に照らして次のような点で
不十分な点が存在していた。
Conventionally used Cu-Cr alloys, Cu-Cr-Zr alloys, Cu-Be-Co alloys, etc. have been insufficient in the following points in view of the above-mentioned required characteristics.

即ち、Cu-Cr合金、Cu-Cr-Zr合金は高導電性を有し、耐
軟化性や高温での硬度といった点でも優れているが、製
造時に約1000℃の高温で焼入処理を施すため、この際結
晶粒が粗大化して耐変形性に優れない場合があること
と、これらの合金は電極としての使用時に先端にクラッ
クを生じ易く、本発明者等はこの原因がCrの存在により
助長されるのものであることを見出した。
That is, Cu-Cr alloys and Cu-Cr-Zr alloys have high conductivity and are also excellent in terms of softening resistance and hardness at high temperatures, but they are hardened at a high temperature of about 1000 ° C during manufacturing. Therefore, in this case, the crystal grains may become coarse and deformation resistance may not be excellent, and these alloys are likely to cause cracks at the tips when used as an electrode, and the present inventors have caused this by the presence of Cr. It was found to be encouraged.

又Cu-Be-Co合金は室温では高強度であるが、電気や熱の
伝導性が低く、使用時に発熱し易いことと、耐軟化性に
優れず、高価なわりには電極用材料として好ましいもの
ではなかった。
Although Cu-Be-Co alloy has high strength at room temperature, it has low electrical and thermal conductivity, easily generates heat during use, does not have excellent softening resistance, and is expensive, but is preferable as an electrode material. Was not.

その他、さらに高温強度の高いW,Moなどの材料も考えら
れるが、電極としての他の必要条件、即ち高電気伝導性
がそ害され、電極自体が固有抵抗により異常発熱した
り、靱性の低下による割れや破損のため、実用化が困難
であった。
Other materials such as W and Mo, which have higher high-temperature strength, are also conceivable, but other necessary condition as an electrode, that is, high electrical conductivity is impaired, and the electrode itself causes abnormal heat generation due to its specific resistance or lower toughness. It was difficult to put into practical use due to cracking and damage.

又酸化物を分散させた銅合金表面に窒化物、炭化物又は
炭窒化物の被覆層を有する溶接用電極(特開昭58-14187
6号)が提案されているが、これは表面層の電気伝導度
が小さく、先端での発熱が大きいため、母材である銅合
金の軟化、変形、溶融が起り易く、寿命が充分でなかっ
た。
Further, a welding electrode having a coating layer of nitride, carbide or carbonitride on the surface of a copper alloy in which oxide is dispersed (Japanese Patent Laid-Open No. 58-14187).
No. 6) has been proposed, but this is because the electrical conductivity of the surface layer is small and the heat generated at the tip is large, so that the copper alloy that is the base material is prone to softening, deformation, and melting, and its life is not sufficient. It was

(発明の開示) 本発明は、上述の問題点を解決するため成されたもの
で、電気、熱の伝導性に優れ、溶接用電極として使用
時、溶着しにくく、電極先端での余分な発熱が少なく、
電極の摩耗が少なく、表面被覆層の密着性良好で、かつ
製造容易な抵抗溶接用電極材料を提供せんとするもので
ある。
DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems, has excellent electrical and thermal conductivity, is difficult to weld when used as a welding electrode, and generates extra heat at the electrode tip. Is less
It is intended to provide an electrode material for resistance welding in which the electrode is less worn, the adhesion of the surface coating layer is good, and which is easy to manufacture.

本発明は、銅合金の上に、Ni,Co,Cr,Mo又はそれらの合
金より成る中間被覆層と、その上の酸化物、炭化物、窒
化物又は炭窒化物の粒子を分散させた金属又は合金(以
下、分散型合金と称す)より成る表面被覆層を設けたこ
とを特徴とする抵抗溶接用電極材料である。
The present invention is, on a copper alloy, Ni, Co, Cr, Mo or an intermediate coating layer made of an alloy thereof, and a metal or particles in which oxide, carbide, nitride or carbonitride particles are dispersed thereon. An electrode material for resistance welding, comprising a surface coating layer made of an alloy (hereinafter referred to as a dispersion type alloy).

本発明において、母材となる銅合金としては、銅をベー
スとし、これにCr,Zr,Be,Co,Mo等の金属を添加した合金
(例、Cu-Cr,Cu-Cr-Zr,Cu-Be-Co,Cu-Zr-Fe-P合金等)、
Al2O3等の酸化物を分散させた分散強化型銅合金などで
ある。
In the present invention, as the copper alloy as the base material, based on copper, an alloy obtained by adding a metal such as Cr, Zr, Be, Co, Mo (eg, Cu-Cr, Cu-Cr-Zr, Cu -Be-Co, Cu-Zr-Fe-P alloy, etc.),
Examples include dispersion-strengthened copper alloys in which oxides such as Al 2 O 3 are dispersed.

又表面被覆層を構成する分散型合金は、金属又は合金、
例えばCo,Cr,W,Mo,Co,Ni等又はそれらの合金(例、Ni-C
r合金等)等をベースとし、この中に酸化物、炭化物、
窒化物又は炭窒化物、例えば炭化クロム,炭化タングス
テン,炭化チタン,炭化ケイ素,酸化アルミ,窒化チタ
ン,窒化タンタル,炭窒化チタン等の粒子を分散させた
ものである。
Further, the dispersion type alloy constituting the surface coating layer is a metal or an alloy,
For example, Co, Cr, W, Mo, Co, Ni etc. or their alloys (eg Ni-C
(r alloy etc.), etc., with oxides, carbides,
It is a dispersion of particles of a nitride or carbonitride, for example, chromium carbide, tungsten carbide, titanium carbide, silicon carbide, aluminum oxide, titanium nitride, tantalum nitride, titanium carbonitride, and the like.

この表面被覆層は、溶接使用時分散型合金のベースの金
属又は合金が消滅しても分散している酸化物、炭化物、
窒化物又は炭窒化物の粒子が残存し、表面に密着良く集
積するため、溶着しにくく、その被覆厚は5〜100μが
好ましい。5μ未満では溶着防止効果少なく、100μを
越えると工業的コスト高となり、電極先端の発熱が大と
なる。
This surface coating layer is an oxide, a carbide that is dispersed even if the base metal or alloy of the dispersion type alloy disappears during welding,
Since the particles of nitride or carbonitride remain and accumulate on the surface with good adhesion, they are difficult to weld, and the coating thickness is preferably 5 to 100 μm. If it is less than 5 μm, the anti-welding effect is small, and if it exceeds 100 μm, the industrial cost becomes high and the heat generation at the electrode tip becomes large.

又中間被覆層は、母材の銅合金と表面被覆層の密着性を
向上し、熱応力による剥離を防止することを第1の目的
とする。この被覆層は0.5〜100μが好ましく、0.5μ未
満では密着性向上効果少なく、100μを越えると工業上
コスト高となる。
The first purpose of the intermediate coating layer is to improve the adhesion between the copper alloy of the base material and the surface coating layer, and to prevent peeling due to thermal stress. The coating layer preferably has a thickness of 0.5 to 100 .mu., And if it is less than 0.5 .mu.

なお母材の銅合金と中間被覆層の密着性向上のため、C
u,Ni等の下地層を設けても良い。
In order to improve the adhesion between the base copper alloy and the intermediate coating layer, C
A base layer of u, Ni or the like may be provided.

以下、本発明を図面を用いて実施例により説明する。第
1図〜第5図は本発明の実施例である電極チップを示す
縦断面図である。図において、1はチップ本体を構成す
る銅合金で、3は電極の先端であり、又第4図に示す
1′はチップ本体で、その中心部に、銅合金2(例、炭
素繊維強化銅合金等)が接合されている。
Hereinafter, the present invention will be described by way of examples with reference to the drawings. 1 to 5 are vertical sectional views showing an electrode chip which is an embodiment of the present invention. In the figure, 1 is a copper alloy that constitutes the chip body, 3 is the tip of the electrode, and 1'shown in FIG. 4 is the chip body, and the copper alloy 2 (eg, carbon fiber reinforced copper Alloys, etc.) are joined.

4はNi,Co,Cr,Mo又はそれらの合金より成る中間被覆層
で、5は前述のような分散型合金より成る表面被覆層で
ある。
Reference numeral 4 is an intermediate coating layer made of Ni, Co, Cr, Mo or an alloy thereof, and 5 is a surface coating layer made of the dispersion type alloy as described above.

第1図では、銅合金1の先端3の上に中間被覆層4およ
び表面被覆層5が被覆されている。
In FIG. 1, the intermediate coating layer 4 and the surface coating layer 5 are coated on the tip 3 of the copper alloy 1.

第2図では、銅合金1の全面に中間被覆層4と表面被覆
層5が被覆されている。
In FIG. 2, the intermediate coating layer 4 and the surface coating layer 5 are coated on the entire surface of the copper alloy 1.

第3図では、銅合金1の全面に電気めっきによる銅被覆
層6が被覆され、その先端3の表面に中間被覆層4と表
面被覆層5が被覆されている。
In FIG. 3, the entire surface of the copper alloy 1 is coated with the copper coating layer 6 by electroplating, and the surface of the tip 3 thereof is coated with the intermediate coating layer 4 and the surface coating layer 5.

第4図では、チップ1′の中心部の銅合金2の表面に中
間被覆層4と表面被覆層5が被覆されている。
In FIG. 4, the intermediate coating layer 4 and the surface coating layer 5 are coated on the surface of the copper alloy 2 at the center of the chip 1 '.

第5図に示すものは、銅合金1の先端3の上に、中間被
覆層4と表面被覆層5を被覆したもので、スポット溶接
用のチップを示す。
FIG. 5 shows a tip for spot welding in which the tip 3 of the copper alloy 1 is coated with the intermediate coating layer 4 and the surface coating layer 5.

表面被覆層の分散型合金を被覆するには、電気めっき、
無電解めっき、蒸着法等の方法が用いられる。例えばN
i,Co又はCr等のめっき液中に分散化合物の粒子を分散さ
せて電気めっきする。
To coat the dispersed alloy of the surface coating layer, electroplating,
A method such as electroless plating or vapor deposition is used. For example N
Particles of a dispersion compound are dispersed in a plating solution such as i, Co or Cr and electroplating is performed.

(実施例) 表1に示す母材合金より第1図に示すような溶接用電極
チップ本体を作成し、その先端3の上に、表1に示すよ
うに、中間被覆層4および表面被覆層5を各種条件で被
覆した。被覆方法は、電気めっき(A),スパッタリン
グ(B),イオンプレーティング(C)および活性化反
応蒸着(D)を用いた。
(Example) An electrode tip body for welding as shown in FIG. 1 was prepared from the base material alloy shown in Table 1, and the intermediate coating layer 4 and the surface coating layer were formed on the tip 3 thereof as shown in Table 1. 5 was coated under various conditions. As the coating method, electroplating (A), sputtering (B), ion plating (C) and activation reaction vapor deposition (D) were used.

電極の寸法は、平行部の直径16mm、先端部の直径8mmで
あった。
The electrodes had a diameter of 16 mm at the parallel part and a diameter of 8 mm at the tip.

得られた電極チップをスポット溶接に用い、厚さ0.8mm
の亜鉛鍍鉄板2枚を重ね合わせ、上下同一電極として、
電流10kA,圧力200kg,溶接時間25サイクルの条件でスポ
ット溶接を行ない、電極に溶着が生ずるまでの打点数を
測定した結果は表1に示す通りである。
0.8 mm thick with the obtained electrode tip for spot welding
2 sheets of zinc-plated iron plate of
Table 1 shows the results of measuring the number of spots until welding occurs on the electrode by spot welding under the conditions of current 10 kA, pressure 200 kg and welding time 25 cycles.

表1より、本発明によるNo.1〜6は、比較例、従来例に
比べ、いずれも溶着発生までの寿命が著しく長く、剥離
を生じないことが分る。比較例のNo.7,8は剥離を発生し
た。
From Table 1, it can be seen that Nos. 1 to 6 according to the present invention have remarkably long life before welding occurs and no peeling occurs as compared with Comparative Examples and Conventional Examples. Nos. 7 and 8 of the comparative example caused peeling.

(発明の効果) 上述のように構成された本発明の抵抗溶接用電極材料は
次のような効果がある。
(Effects of the Invention) The resistance welding electrode material of the present invention configured as described above has the following effects.

(イ)電極本体が銅合金であるため、電気、熱の伝導性
が優れ、溶接、鑞接使用時異常発熱が少ない。
(B) Since the electrode body is made of copper alloy, it has excellent electrical and thermal conductivity, and there is little abnormal heat generation during welding and brazing.

(ロ)最表面に、酸化物、炭化物、窒化物又は炭窒化物
を分散させた金属又は合金より成る表面被覆層を設けた
から、溶接使用時分散型合金中の金属又は合金が消滅し
ても分散化合物粒子が残存し、表面に密着良く集積し、
又分散型合金が耐酸化性良好であるため、溶着しにく
く、寿命が向上する。特にZn,Sn,半田,Ag等の低融点金
属又は合金の被覆を施した被溶接材料に対しても溶着し
にくい。
(B) Since the surface coating layer made of a metal or alloy in which oxide, carbide, nitride or carbonitride is dispersed is provided on the outermost surface, even if the metal or alloy in the dispersed alloy disappears during welding. Dispersed compound particles remain and accumulate on the surface with good adhesion,
Further, since the dispersion type alloy has good oxidation resistance, it is difficult to weld and the life is improved. In particular, it is difficult to weld even to a material to be welded coated with a low melting point metal or alloy such as Zn, Sn, solder, or Ag.

又分散型合金であるため、摩耗が少ない。Also, since it is a dispersion type alloy, it has little wear.

(ハ)銅合金の上に、Ni,Co,Cr,Mo又はそれらの合金よ
り成る中間被覆層を設けたから、銅合金と表面被覆層の
密着性が良く、剥離を生じない。
(C) Since the intermediate coating layer made of Ni, Co, Cr, Mo or their alloys is provided on the copper alloy, the adhesion between the copper alloy and the surface coating layer is good and peeling does not occur.

(ニ)被覆層はいずれも層が薄く、主体が金属又は合金
であるため、電極先端での余分な発熱がない。
(D) Since all the coating layers are thin and mainly consist of metal or alloy, there is no extra heat generation at the electrode tip.

(ホ)構造が単純であり、表面被覆層は例えば分散化合
物粒子を分散させためっき液で簡単に電気めっきして製
造し得るため、製造容易である。
(E) The structure is simple, and the surface coating layer can be manufactured easily by electroplating with a plating solution in which dispersed compound particles are dispersed, for example, and thus is easy to manufacture.

【図面の簡単な説明】[Brief description of drawings]

第1図〜第5図はそれぞれ本発明の実施例である電極チ
ップを示す縦断面図である。 1,2……銅合金、1′……チップ本体、3……先端、4,
4′……中間被覆層、5……表面被覆層、6……銅被覆
層。
1 to 5 are vertical sectional views showing an electrode chip which is an embodiment of the present invention. 1,2 …… Copper alloy, 1 ′ …… Chip body, 3 …… Tip, 4,
4 '... intermediate coating layer, 5 ... surface coating layer, 6 ... copper coating layer.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】銅合金上に、Ni,Co,Cr,Mo又はそれらの合
金より成る中間被覆層と、その上の酸化物、炭化物、窒
化物又は炭窒化物の粒子を分散させた金属又は合金より
成る表面被覆層を設けたことを特徴とする抵抗溶接用電
極材料。
1. A metal or an intermediate coating layer made of Ni, Co, Cr, Mo or an alloy thereof on a copper alloy, on which an oxide, carbide, nitride or carbonitride particle is dispersed. An electrode material for resistance welding comprising a surface coating layer made of an alloy.
【請求項2】中間被覆層が厚さ0.5〜100μのものであ
り、表面被覆層が厚さ5〜100μのものである特許請求
の範囲第1項記載の抵抗溶接用電極材料。
2. The resistance welding electrode material according to claim 1, wherein the intermediate coating layer has a thickness of 0.5 to 100 .mu.m and the surface coating layer has a thickness of 5 to 100 .mu.m.
【請求項3】酸化物、炭化物、窒化物又は炭窒化物の粒
子を分散させた金属又は合金がCo,Cr,W,Mo又はそれらの
合金をベースとするものである特許請求の範囲第1項又
は第2項記載の抵抗溶接用電極材料。
3. A metal or alloy in which oxide, carbide, nitride or carbonitride particles are dispersed is based on Co, Cr, W, Mo or their alloys. The electrode material for resistance welding according to item 2 or item 3.
【請求項4】炭化物が、Cr,W,Ti又はTaの炭化物である
特許請求の範囲第1項、第2項又は第3項記載の抵抗溶
接用電極材料。
4. The electrode material for resistance welding according to claim 1, 2 or 3, wherein the carbide is a carbide of Cr, W, Ti or Ta.
JP8719984A 1984-04-27 1984-04-27 Electrode material for resistance welding Expired - Lifetime JPH0683905B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8719984A JPH0683905B2 (en) 1984-04-27 1984-04-27 Electrode material for resistance welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8719984A JPH0683905B2 (en) 1984-04-27 1984-04-27 Electrode material for resistance welding

Publications (2)

Publication Number Publication Date
JPS60231597A JPS60231597A (en) 1985-11-18
JPH0683905B2 true JPH0683905B2 (en) 1994-10-26

Family

ID=13908301

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8719984A Expired - Lifetime JPH0683905B2 (en) 1984-04-27 1984-04-27 Electrode material for resistance welding

Country Status (1)

Country Link
JP (1) JPH0683905B2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6316881A (en) * 1986-07-09 1988-01-23 Shiraoka Yakin Kk Electrode for welding
JPH0747223B2 (en) * 1987-09-22 1995-05-24 トヨタ自動車株式会社 Electrode tip for resistance welding
CN1240148C (en) 2000-11-01 2006-02-01 索尼株式会社 Cell, cell production method, welded article production method and pedestal
JP4575924B2 (en) * 2004-11-29 2010-11-04 三菱電機株式会社 Resistance welding electrode, welding resistance electrode manufacturing method, resistance welding apparatus, resistance welding line
JP2007075825A (en) * 2005-09-09 2007-03-29 Hiroshima Industrial Promotion Organization Soldering iron tip and its manufacturing method
JP4925350B2 (en) * 2008-02-22 2012-04-25 関東自動車工業株式会社 Spot welding electrode and spot welding apparatus

Also Published As

Publication number Publication date
JPS60231597A (en) 1985-11-18

Similar Documents

Publication Publication Date Title
AU2001275856C1 (en) Reducing metals as a brazing flux
US4122992A (en) Method of making a composite interlayer for diffusion bonding
EP1919653B1 (en) Method of arc or beam brazing/welding of workspieces of identical or different metals or metal alloys with additional materials of sn base alloys ; sn base alloy wire
CA1056560A (en) Interlayer for transient liquid phase diffusion bonding
US2387903A (en) Contacting element
JP5120864B2 (en) Dissimilar materials joining method
KR101256231B1 (en) CONDUCTIVE MATERIAL COMPRISING AN Me-DLC HARD MATERIAL COATING
TWI357444B (en) Zirconium-cladded steel plates, and elements of ch
JPH0683905B2 (en) Electrode material for resistance welding
TWI321159B (en) Solder alloy for producing sputtering target and sputtering target using the same
JP5131077B2 (en) Spot welding method for Sn-based plated steel sheet
WO1995011107A1 (en) Coating for a resistance welding device
JPH05305456A (en) Spot welding electrode excelient in continuous spotability
US3179787A (en) Carbide welding rod
JP2012045555A (en) Electrode for spot welding
JP2010029916A (en) SPOT WELDING METHOD OF Sn-BASED PLATED STEEL PLATE
JPH09314337A (en) Method for welding al or al-si alloy coated stainless steel sheet without welded crack
JP2515562B2 (en) Resistance welding electrode
JP2000345313A (en) Production of roll used for continuous casting improved in heat resistance, corrosion resistance and wear resistance of surface of base material of roll barrel part applied with repeated thermal impact and sliding wear
JP4331370B2 (en) Method for manufacturing HIP joined body of beryllium and copper alloy and HIP joined body
JP3846960B2 (en) Welding torch member and manufacturing method thereof
JP3355199B2 (en) Arc spraying wire
JP3176746B2 (en) Power supply tip for welding
JPH0813424B2 (en) Spot welding electrode
JP5949523B2 (en) Spot resistance welding pretreatment method for Sn-based plated steel sheet