JPH02166249A - Electrode material for resistance welding - Google Patents
Electrode material for resistance weldingInfo
- Publication number
- JPH02166249A JPH02166249A JP32271788A JP32271788A JPH02166249A JP H02166249 A JPH02166249 A JP H02166249A JP 32271788 A JP32271788 A JP 32271788A JP 32271788 A JP32271788 A JP 32271788A JP H02166249 A JPH02166249 A JP H02166249A
- Authority
- JP
- Japan
- Prior art keywords
- electrode material
- resistance welding
- welding
- electrode
- strength
- 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.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 36
- 239000007772 electrode material Substances 0.000 title claims abstract description 18
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- 239000000956 alloy Substances 0.000 abstract description 15
- 229910045601 alloy Inorganic materials 0.000 abstract description 14
- 229910017813 Cu—Cr Inorganic materials 0.000 abstract description 3
- 229910052759 nickel Inorganic materials 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 9
- 239000010949 copper Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- UREBDLICKHMUKA-CXSFZGCWSA-N dexamethasone Chemical compound C1CC2=CC(=O)C=C[C@]2(C)[C@]2(F)[C@@H]1[C@@H]1C[C@@H](C)[C@@](C(=O)CO)(O)[C@@]1(C)C[C@@H]2O UREBDLICKHMUKA-CXSFZGCWSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/222—Non-consumable electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Conductive Materials (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、被溶接体に加圧力を加えるとともに、通電を
抵抗溶接用電極材料に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an electrode material for resistance welding, which applies pressure to a workpiece to be welded and conducts current.
［従来の技術］
一般に、スポット溶接あるいはシーム溶接などにおける
抵抗溶接用電極には、短時間とはいえ、大電流が流れ、
抵抗発熱とともに溶接部に投入した熱量の多くは電極に
逃げるため、電極先端部の温度は、４００℃〜７００℃
にも達する。従って抵抗溶接用電極材料としては耐熱性
、高温強度、高導電性などが要求されており、Ｃｕ−Ｃ
ｒ合金が広く使用されている。しかし、Ｃｕ−Ｃｒ合金
は導電性が特に優れているものの、４００℃〜７００℃
における耐熱性、高温強度の点において必要な特性を十
分溝たしているとはいえない。[Prior Art] In general, a large current flows through resistance welding electrodes during spot welding, seam welding, etc., albeit for a short time.
Because much of the heat input into the welding zone escapes to the electrode along with resistance heat generation, the temperature at the tip of the electrode is between 400℃ and 700℃.
reach even. Therefore, resistance welding electrode materials are required to have heat resistance, high temperature strength, high conductivity, etc.
r alloys are widely used. However, although Cu-Cr alloy has particularly excellent conductivity, it
It cannot be said that the required properties are sufficiently met in terms of heat resistance and high-temperature strength.
従って、溶接回数の増加にともなって、電極先端部が変
形し、正常なナゲツトを形成しなくなる。Therefore, as the number of welding increases, the tip of the electrode becomes deformed and a normal nugget is no longer formed.
その結果、溶接部の強度が低下し、必要な強度が得られ
なくなると、新しい電極に取り替えなけらばならない。As a result, the strength of the weld decreases, and when the required strength is no longer achieved, the electrode must be replaced with a new one.
抵抗溶接は、自動車や家庭電器製品をはじめとして、電
子部品においてもその組み立て工程で広く利用されてい
る。従って、電極の寿命が短かければ、電極材のコスト
が高くなるだけでなく、電極の取り付けや取り外しのた
めに多大な時間と労力とを費すことになる。Resistance welding is widely used in the assembly process of electronic parts, including automobiles and home appliances. Therefore, if the life of the electrode is short, not only will the cost of the electrode material increase, but also a great deal of time and effort will be spent on attaching and removing the electrode.
［発明が解決しようとする課題］
この発明は、耐熱性、高温強度および高導電性に優れ、
抵抗溶接電極の先端部が変形し難く、従って優れた寿命
を持つ抵抗溶接用電極材料を提供することを目的とする
ものである。[Problems to be solved by the invention] The present invention has excellent heat resistance, high temperature strength, and high conductivity.
The object of the present invention is to provide a resistance welding electrode material in which the tip of the resistance welding electrode is difficult to deform and therefore has an excellent lifespan.
［課題を解決するための手段］
本発明の第１の要旨は、Ｎｉ：１．０〜５．０ｗｔ％、
Ｓ ｉ ： Ｏ，、２〜１ 、５ｗｔ％、Ｃｒ：０．
００１〜１．５ｗｔ％、Ｍｇ＋０．００１〜０．０１ｗ
ｔ％を含有し、残部実質的にＣｕよりなることを特徴と
する抵抗溶接用電極材料に存在する。[Means for Solving the Problem] The first gist of the present invention is that Ni: 1.0 to 5.0 wt%,
Si: O, 2-1, 5wt%, Cr: 0.
001~1.5wt%, Mg+0.001~0.01w
t%, and the remainder substantially consists of Cu.
本発明の第２の要旨は、Ｎｉ：１．Ｏ〜５．０ｗｔ％、
Ｓｉ ：０．２−１．５ｗｔ％、Ｃｒ：０．００１〜１
．５ｗｔ％、Ｍｇ：０．００１〜０．０１ｗｔ％を含有
し、さらに、Ｃｏ：１−０ｗｔ％以下およびＺｒ：０．
３５ｗｔ％以下のうち１種または２種を含み、残部実質
的にＣｕよりなることを特徴とする抵抗溶接用電極材料
に存在する。The second gist of the present invention is that Ni:1. O~5.0wt%,
Si: 0.2-1.5wt%, Cr: 0.001-1
．． 5 wt%, Mg: 0.001 to 0.01 wt%, and further contains Co: 1-0 wt% or less and Zr: 0.
It is present in a resistance welding electrode material characterized in that it contains one or two of Cu in an amount of 35 wt% or less, and the remainder substantially consists of Cu.
［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、抵抗溶接用電極用としての特性を満足し得る合金
材料の選択を行った。高強度、高導電性の合金としては
、ＣｕにＮｉとＳｉを添加した合金（コルソン合金とい
われる）が古くから広く用いられていた。[Function] In order to solve the problems of the prior art described above, the present inventor selected an alloy material that can satisfy the characteristics for resistance welding electrodes. As a high-strength, high-conductivity alloy, an alloy in which Ni and Si are added to Cu (referred to as a Corson alloy) has been widely used for a long time.
しかし、この合金を抵抗溶接用電極に用いる場合、熱間
加工性が悪く、抵抗溶接用電極材料としての使用は困難
であった。However, when this alloy is used for resistance welding electrodes, its hot workability is poor, making it difficult to use it as a resistance welding electrode material.
そこで１本発明者ｌヨ、このコンツル合金をベースとし
て、幾多の実験を重ねたところ、Ｎｉ。Therefore, the present inventor conducted numerous experiments using this Kontzl alloy as a base, and found that Ni.
ＳＬの量を一定範囲に限定し、さらに、所定の添加元素
を所定量添加した場合には熱間加工が可使となり、さら
に、耐熱性、高温強度が、抵抗溶接用電極用としても満
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。If the amount of SL is limited to a certain range and furthermore, certain additive elements are added in certain amounts, the product can be used for hot working, and the heat resistance and high temperature strength are also satisfactory for resistance welding electrodes. They have found that the improvement can be improved as much as possible, and have come up with the present invention.
本発明に係る抵抗溶接用電極材料の含有成分および含有
割合について説明する。The components and content ratio of the electrode material for resistance welding according to the present invention will be explained.
（Ｎｉ ： １ 、 Ｏ〜５ 、０ｗｔ％）Ｎｉは強度
向上に寄与する元素であり、含有量が、１．０ｗｔ％未
満ではＳｉが０．２〜１．５ｗｔ％含有されていても強
度向上効果は少なく、また、５．０ｗｔ％を越えて含有
されると効果が飽和し、導電率も低下する。よって、Ｎ
ｉ含有量は１．０〜５．０ｗｔ％とする。(Ni: 1, O ~ 5, 0 wt%) Ni is an element that contributes to improving strength, and if the content is less than 1.0 wt%, the strength will not improve even if Si is contained in 0.2 to 1.5 wt%. The effect is small, and if the content exceeds 5.0 wt%, the effect is saturated and the conductivity also decreases. Therefore, N
The i content is 1.0 to 5.0 wt%.
（Ｓ ｉ ： ０ 、２〜１ ＋ ５ｗｔ％）ＳｉはＮ
ｉと共に強度向上に寄与する元素であり、含有量が０．
２ｗｔ％未満ではＮｉがｉ、。(S i : 0, 2~1 + 5wt%) Si is N
It is an element that contributes to improving strength together with i, and the content is 0.
At less than 2 wt%, Ni is i.
〜５．０ｗｔ％含有されていても強度向上効果は少なく
、また、１．５ｗｔ％を越えて含有されると導電率が低
下すると共に熱間加工性が悪くなる。よって、Ｓｉ含有
量は０．２〜ｌ 、５ｗｔ％とする。Even if the content is 5.0 wt%, the strength improvement effect is small, and if the content exceeds 1.5 wt%, the electrical conductivity decreases and hot workability deteriorates. Therefore, the Si content is set to 0.2-1, 5 wt%.
（Ｃｒ：０．００１−１．５ｗｔ％）
Ｃｒは、鋳塊の粒界を強化し、熱間加工性を向上させる
とともに、耐熱性、高温強度の向上に寄与する元素であ
る。含有量がＯ，００１ｗｔ％未満ではこのような効果
は少なく、また、１．５ｗｔ％を越えて含有されると巨
大な初晶Ｃｒが晶出し、強度向上効果は飽和するととも
に導電率も低下する。よって、Ｃｒ含有量は、Ｏ’、Ｏ
Ｏ１〜１．５ｗｔ％とする。(Cr: 0.001-1.5 wt%) Cr is an element that strengthens the grain boundaries of the ingot, improves hot workability, and contributes to improving heat resistance and high-temperature strength. If the content is less than 0,001 wt%, this effect will be small, and if the content exceeds 1.5 wt%, a huge amount of primary Cr will crystallize, and the strength improvement effect will be saturated and the electrical conductivity will also decrease. . Therefore, the Cr content is O', O
O1 to 1.5 wt%.
（Ｍｇ：０．００１−０．０１ｗｔ％）Ｍｇは不可避的
に混入してくるＳを安定したＭｇとの化合物ＭｇＳとし
て母相中に固定し、熱間加工性を向上させる元素である
。含有量が０．００１ｗｔ％未満ではこの効果は少なく
、また、０．０１ｗｔ％を越えて含有されると鋳塊中に
Ｃｕ＋ＭｇＣｕ２ｃｒ＋共晶（融点７２２℃）を生じ、
７２２℃以上の温度に加熱すると割れを発生し、熱間加
工性が劣化する。よって、Ｍｇ含有量は０．００１−０
．０１ｗｔ％とする。(Mg: 0.001-0.01 wt%) Mg is an element that fixes unavoidably mixed S in the matrix as a stable compound MgS with Mg and improves hot workability. If the content is less than 0.001 wt%, this effect will be small, and if the content exceeds 0.01 wt%, Cu + MgCu2cr + eutectic (melting point 722 ° C) will be produced in the ingot,
When heated to a temperature of 722°C or higher, cracks occur and hot workability deteriorates. Therefore, the Mg content is 0.001-0
．． 01wt%.
（Ｃｏ ： ｌ 、０ｗｔ％以下）
ＣＯはＳｉとの化合物を形成し強度の向上に寄与し、ま
た、導電率の向上にも寄与する。さらに、温度の上昇に
ともなう結晶粒の粗大化を防止して耐熱性にも寄与する
。含有量がｌ 、０ｗｔ％を越えると上記の効果はある
が、含有量が増える割には効果向上は少なく、かつ高価
となる。よって、Ｃｏ含有量は、１．０ｗｔ％以下とす
る。(Co: 1, 0 wt% or less) CO forms a compound with Si and contributes to improving the strength, and also contributes to improving the electrical conductivity. Furthermore, it prevents crystal grains from becoming coarser as the temperature rises, contributing to heat resistance. If the content exceeds 1,0 wt %, the above effects can be obtained, but the improvement in effect is small as the content increases, and the cost becomes high. Therefore, the Co content is set to 1.0 wt% or less.
（Ｚｒ：０．３５ｗｔ％以下）
Ｚｒは、Ｃｕ中に微細なＣｕ３Ｚｒとして析出し強度の
向上に寄与し、また、耐熱性の向上にも寄与する。含有
量が０．３５ｗｔ％を越えると、巨大なＣｕ３ Ｚｒが
晶出する。この巨大なＣｕ３Ｚｒは、上記した微細なＣ
ｕ３Ｚｒの有する特性を有していないばかりでなく、導
電率の低下をまねく。よって、Ｚｒ含有量は、０．３５
ｗｔ％以下とする。(Zr: 0.35 wt% or less) Zr precipitates in Cu as fine Cu3Zr and contributes to improving strength, and also contributes to improving heat resistance. When the content exceeds 0.35 wt%, huge Cu3Zr crystallizes. This giant Cu3Zr is composed of the above-mentioned fine C
Not only does it not have the characteristics of u3Zr, but it also causes a decrease in electrical conductivity. Therefore, the Zr content is 0.35
It should be less than wt%.
なお、上記に説明した必須の含有成分以外に、Ｚｎを２
．０ｗｔ％まで、ＡＨ，ＡＭ、Ｉｎ。In addition to the essential ingredients explained above, Zn is
．． Up to 0 wt%, AH, AM, In.
Ｍｎ、Ｓｎの１種または２種以上を０．２ｗｔ％まで、
また、Ｂ、Ｂｅ、Ｔｉ、Ｐの１種または２種以上を０．
１ｗｔ％までの含有は、強度、耐熱性を損なうことがな
く、導電率の低下もわずかであるため、上記した成分の
含有量は許容される。One or more of Mn and Sn up to 0.2 wt%,
In addition, one or more of B, Be, Ti, and P may be added at 0.00%.
If the content is up to 1 wt%, the strength and heat resistance will not be impaired, and the electrical conductivity will only slightly decrease, so the content of the above-mentioned components is permissible.
［実施例コ 本発明に係る抵抗溶接用電極材料の実施例を説明する。[Example code] Examples of the resistance welding electrode material according to the present invention will be described.
第１表に示す含有成分および含有割合の銅合金をクリプ
トル炉において大気中で木炭被覆下に溶解し、傾注式の
鋳鉄性ブックモールドに鋳込み、厚さ５０ｍｍ、幅８０
ｍｍ、長さ１８０ｍｍの鋳塊を製造した。A copper alloy having the components and proportions shown in Table 1 was melted in the air in a Kryptor furnace under charcoal coating, and cast into a tilting cast iron book mold to a thickness of 50 mm and a width of 80 mm.
An ingot with a length of 180 mm was produced.
そして、これらの鋳塊の表面および裏面を各々２．５ｍ
ｍ面削りし、８８０℃の温度で熱間圧延を行い、厚さ１
８ｍｍの板材とした。Ｎｏ、１゜２．４，５，６，９，
１０，１１，１２，１３゜１４の合金板材については７
５０℃において、Ｎｏ、３．７，８．１５の合金板材に
ついては９５０℃において３０分間加熱した後、水中冷
却した。Then, the front and back sides of these ingots were each 2.5 m long.
M-face milled and hot rolled at 880℃ to a thickness of 1
It was made into a plate material of 8 mm. No, 1°2.4,5,6,9,
7 for alloy plates of 10, 11, 12, 13°14
At 50°C, alloy plates No. 3.7 and 8.15 were heated at 950°C for 30 minutes and then cooled in water.
さらに、これらの板材の表面酸化スケールを除去した後
、冷間にて１．６７ｍｍまで圧延した。Furthermore, after removing surface oxidation scale from these plates, they were cold rolled to 1.67 mm.
これらの圧延材を、Ｎｏ、１〜１４については５００℃
Ｘ２Ｈｒ、Ｎｏ、１５については４５０℃×２Ｈｒ時効
焼鈍した後、冷間にて１．５ｍｍまで圧延した。These rolled materials were heated to 500°C for No. 1 to 14.
For X2Hr, No. 15, it was subjected to aging annealing at 450°C for 2Hr and then cold rolled to a thickness of 1.5mm.
そして、これらの板材について、常温硬度、高温硬度、
耐熱性、導電率の測定および抵抗溶接試験を行った。な
お、高温硬度は５００℃において測定した。耐熱性は、
１時間加熱後の硬度が加熱前の硬度の８０％に減少する
温度によって評価した。For these plate materials, the room temperature hardness, high temperature hardness,
Heat resistance, conductivity measurements and resistance welding tests were conducted. Note that high temperature hardness was measured at 500°C. Heat resistance is
Evaluation was made based on the temperature at which the hardness after heating for 1 hour decreased to 80% of the hardness before heating.
抵抗溶接試験においては、被溶接材料として、０．２ｍ
ｍ厚さのＳｎめっき黄銅と直径０．４ｍｍのＮｉワイヤ
を用いた。この状況を第１図に示す。In the resistance welding test, the material to be welded was 0.2 m.
Sn-plated brass with a thickness of m and a Ni wire with a diameter of 0.4 mm were used. This situation is shown in Figure 1.
溶接条件は、加圧カニ３−５ｋｇ、溶接電流：１１００
Ａとした。電極は幅４ｍｍ、長さ７０ｍｍに加工して使
用した。評価方法としては、溶接部の引張せん断強度を
測定し、これが４．０（ｋｇ／点）より小さくなる溶接
回数をもって、電極寿命とした。Welding conditions are pressure crab 3-5kg, welding current: 1100
I gave it an A. The electrode was processed to have a width of 4 mm and a length of 70 mm. As an evaluation method, the tensile shear strength of the welded part was measured, and the number of welding times at which this strength became smaller than 4.0 (kg/point) was defined as the electrode life.
Ｎｏ、１〜１５の合金についての常温硬度、高温硬度、
耐熱温度、導電率および電極寿命の測定結果を第２表に
示す。なお、比較合金Ｎｏ。Room temperature hardness, high temperature hardness for alloys No. 1 to 15,
Table 2 shows the measurement results of the allowable temperature limit, electrical conductivity, and electrode life. In addition, comparative alloy No.
１３．１４については熱間加工性が悪いので、これらの
特性評価は省略した。また、Ｎｏ、９゜１２については
常温硬度が低く、Ｎｏ、１０゜１１については導電率が
低いため、高温硬度、耐熱温度、電極寿命の測定は省略
した。Since hot workability was poor for No. 13 and No. 14, evaluation of these characteristics was omitted. Furthermore, since the hardness at room temperature was low for No. 9°12 and the conductivity was low for No. 10°11, measurements of high temperature hardness, heat resistance temperature, and electrode life were omitted.
高温硬度の高い材料は抵抗溶接用電極材として使用した
際、溶接時の電極昇温によっても変形し難い。従って、
高温硬度の高い本発明合金は、従来のＣｕ−Ｃｒ合金に
比較して、溶接寿命が著しく向上していることが第２表
の結果より分かる。When a material with high high temperature hardness is used as an electrode material for resistance welding, it is difficult to deform even when the electrode temperature is increased during welding. Therefore,
It can be seen from the results in Table 2 that the alloy of the present invention, which has high high temperature hardness, has significantly improved welding life compared to the conventional Cu-Cr alloy.
［発明の効果］
以上説明したように、本発明に係る抵抗溶接用電極材は
、耐熱性、高温硬度、導電性に優れており、使用寿命が
長いという優れた特徴を有している。[Effects of the Invention] As explained above, the electrode material for resistance welding according to the present invention has excellent characteristics such as excellent heat resistance, high temperature hardness, and electrical conductivity, and a long service life.
第１図は実施例における溶接試験状況を示す概念図であ
る。FIG. 1 is a conceptual diagram showing a welding test situation in an example.
Claims (2)
．５ｗｔ％、Ｃｒ：０．００１〜１．５ｗｔ％、Ｍｇ：
０．００１〜０．０１ｗｔ％を含有し、残部実質的にＣ
ｕよりなることを特徴とする抵抗溶接用電極材料。(1) Ni: 1.0-5.0wt%, Si: 0.2-1
．． 5wt%, Cr: 0.001-1.5wt%, Mg:
0.001 to 0.01 wt%, the remainder being substantially C
An electrode material for resistance welding characterized by comprising u.
．５ｗｔ％、Ｃｒ：０．００１〜１．５ｗｔ％、Ｍｇ：
０．００１〜０．０１ｗｔ％を含有し、さらに、Ｃｏ：
１．０ｗｔ％以下およびＺｒ：０．３５ｗｔ％以下のう
ち１種または２種を含み、残部実質的にＣｕよりなるこ
とを特徴とする抵抗溶接用電極材料。(2) Ni: 1.0-5.0wt%, Si: 0.2-1
．． 5wt%, Cr: 0.001-1.5wt%, Mg:
Contains 0.001 to 0.01 wt%, and further contains Co:
1. An electrode material for resistance welding, characterized in that it contains one or two of Zr: 1.0 wt% or less and Zr: 0.35 wt% or less, and the remainder substantially consists of Cu.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32271788A JPH02166249A (en) | 1988-12-20 | 1988-12-20 | Electrode material for resistance welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32271788A JPH02166249A (en) | 1988-12-20 | 1988-12-20 | Electrode material for resistance welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02166249A true JPH02166249A (en) | 1990-06-26 |
Family
ID=18146838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32271788A Pending JPH02166249A (en) | 1988-12-20 | 1988-12-20 | Electrode material for resistance welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02166249A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008163439A (en) * | 2007-01-05 | 2008-07-17 | Sumitomo Light Metal Ind Ltd | Copper alloy material and method for producing the same, and electrode member of welding equipment |
| JP2008223069A (en) * | 2007-03-12 | 2008-09-25 | Miyoshi Gokin Kogyo Kk | High-strength, high-conductivity copper alloy and its manufacturing method |
| CN105057914A (en) * | 2015-07-28 | 2015-11-18 | 合肥科启环保科技有限公司 | Environment-friendly silver-free welding rod |
-
1988
- 1988-12-20 JP JP32271788A patent/JPH02166249A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008163439A (en) * | 2007-01-05 | 2008-07-17 | Sumitomo Light Metal Ind Ltd | Copper alloy material and method for producing the same, and electrode member of welding equipment |
| JP2008223069A (en) * | 2007-03-12 | 2008-09-25 | Miyoshi Gokin Kogyo Kk | High-strength, high-conductivity copper alloy and its manufacturing method |
| CN105057914A (en) * | 2015-07-28 | 2015-11-18 | 合肥科启环保科技有限公司 | Environment-friendly silver-free welding rod |
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