JPH0819890A - Electrode material for welding and its production - Google Patents
Electrode material for welding and its productionInfo
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- JPH0819890A JPH0819890A JP15369894A JP15369894A JPH0819890A JP H0819890 A JPH0819890 A JP H0819890A JP 15369894 A JP15369894 A JP 15369894A JP 15369894 A JP15369894 A JP 15369894A JP H0819890 A JPH0819890 A JP H0819890A
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、普通鋼板および防錆鋼
板等の抵抗溶接およびアーク溶接等に用いる、高導電性
の溶接用電極材料およびその製造方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a highly conductive electrode material for welding which is used for resistance welding, arc welding and the like of ordinary steel plates and rustproof steel plates, and a method for producing the same.
【０００２】[0002]
【従来の技術】従来、ＪＩＳＺ3234の抵抗溶接用銅合金
電極材料第２種該当品としては二種類存在する。その一
つは、Ｃｒ0.5〜1.3ｗｔ％、Ｚｒ0.1〜0.5ｗｔ％、およ
び残部Ｃｕよりなるものが知られている。この組成のも
のは、導電率がぎりぎりの数値となるが耐熱性は比較的
良い。また、他の一つは、Ｃｒ0.5〜1.3ｗｔ％と残部Ｃ
ｕから成るものである。これは、導電率は高いが抵抗溶
接用電極材料としては耐熱性が低いものである。2. Description of the Related Art Conventionally, there are two types of JIS Z3234 copper alloy electrode materials for resistance welding, which correspond to the second type. One of them is known to consist of Cr 0.5 to 1.3 wt%, Zr 0.1 to 0.5 wt%, and the balance Cu. With this composition, the electrical conductivity is at a bare minimum, but the heat resistance is relatively good. The other one is Cr 0.5 to 1.3 wt% and the balance C.
It consists of u. This has high electrical conductivity but low heat resistance as an electrode material for resistance welding.
【０００３】このような、抵抗溶接用銅合金電極材料
は、自動車製造ラインでのボディ溶接や、シーム溶接用
等の抵抗溶接用電極材料として、またアーク溶接(通称
ＭＩＧ溶接)の電極材料等に使用されている。Such a copper alloy electrode material for resistance welding is used as an electrode material for resistance welding such as body welding and seam welding in automobile manufacturing lines, and also as an electrode material for arc welding (commonly called MIG welding). in use.
【０００４】この抵抗溶接用銅合金電極材料として要求
される従来の特性は、ＪＩＳ規格では、引張り強さ380
〜450Ｎ／ｍｍ2以上、伸び率15％以上、硬さＨＲＢ65〜
75以上、導電率75％以上(20℃)、焼鈍後の軟化特性温度
475℃以上、(常温での硬さと比較して硬度低下が15％以
内)であることが規定されている。The conventional characteristics required for this copper alloy electrode material for resistance welding are the tensile strength of 380 in JIS standard.
~ 450 N / mm 2 or more, elongation rate 15% or more, hardness HRB65 ~
75 or more, conductivity 75% or more (20 ° C), softening characteristic temperature after annealing
It is specified that the temperature is 475 ° C or higher (hardness reduction is 15% or less compared to the hardness at room temperature).
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、従来の
溶接用電極材料の場合は、製造ラインに組込まれる溶接
工程で使用される事が殆どであるため、被溶接材と接触
する電極部分が300℃以上の高温となって軟化され、バ
リがでたり、ひどい時は変形を生じたりする。このよう
な事態が生じると、ラインを止めてドレッシング加工を
余儀なくされるものとなる。However, in the case of the conventional welding electrode material, it is mostly used in the welding process incorporated in the production line, so that the electrode portion in contact with the material to be welded is 300 ° C. At the above-mentioned high temperature, it is softened, and burrs are generated, or when it is severe, deformation occurs. When such a situation occurs, the line must be stopped and the dressing process must be performed.
【０００６】本発明は、上述のごとき課題を解決しよう
とするものであって、300℃以上の高温によってもでき
るだけ軟化しにくい電極材を得ることにより、ライン停
止の度合いを少なくすることを目的とする。そこで本発
明は、300℃以上の高温に於ても従来品よりも軟化しに
くい溶接用電極材料を得ようとするもので、300℃以上
の高温における硬さ、および焼鈍後の硬さが、従来品と
比較して高いものを得ることを目的としている。The present invention is intended to solve the above problems, and an object thereof is to reduce the degree of line stoppage by obtaining an electrode material that is not easily softened even at a high temperature of 300 ° C. or higher. To do. Therefore, the present invention is to obtain a welding electrode material that is less likely to be softened than a conventional product even at a high temperature of 300 ° C. or higher, the hardness at a high temperature of 300 ° C. or higher, and the hardness after annealing, The purpose is to obtain a high price compared to conventional products.
【０００７】そのためには、引張り強さが最低450Ｎ／
ｍｍ2以上、伸び率15％以上、硬さＨＲＢ最低75以上お
よび導電率70％以上であること。また、400℃までの高
温硬さの硬度低下が、ブリネル硬さで、常温硬さと比較
して25％以内であること。また、500℃までの焼鈍硬さ
の低下が、ＨＲＢ硬さで常温硬さと比較して10％以内で
あるものを提供することである。Therefore, the tensile strength is at least 450 N /
mm 2 or more, elongation of 15% or more, the hardness HRB least 75 or more and conductivity of 70% or more. In addition, the decrease in high temperature hardness up to 400 ° C is Brinell hardness within 25% of room temperature hardness. Another object of the present invention is to provide a product having a decrease in annealing hardness up to 500 ° C. of 10% or less in HRB hardness as compared with room temperature hardness.
【０００８】この場合、導電率が70％と、ＪＩＳ規格の
導電率75％に比較し低いものとなるが、導電率5％の低
下は実用上支障を生じることがない。本発明は、実用上
支障のない導電率を少し低下させて、実用上大きな問題
である耐熱性を向上させたものである。In this case, the electrical conductivity is 70%, which is lower than the electrical conductivity of 75% of the JIS standard, but the reduction of the electrical conductivity of 5% does not cause any practical problems. The present invention is intended to improve the heat resistance, which is a major problem in practical use, by slightly lowering the electrical conductivity, which is not a problem in practical use.
【０００９】[0009]
【課題を解決するための手段】本発明は上述のごとき課
題を解決するため、Ｃｒ0.5〜1.3ｗｔ％、Ｚｒ0.05〜0.
5ｗｔ％、Ａｇ0.05〜0.3ｗｔ％、および残部が実質上Ｃ
ｕより成るものである。In order to solve the above problems, the present invention provides Cr 0.5-1.3 wt% and Zr 0.05-0.
5wt%, Ag0.05-0.3wt%, and the balance is substantially C
u.
【００１０】また、第２の発明は、Ｃｒ0.5〜1.3ｗｔ
％、Ｚｒ0.05〜0.5ｗｔ％、Ａｇ0.05〜0.3ｗｔ％、Ｓｉ
0.01〜0.1ｗｔ％、および残部が実質上Ｃｕより成るも
のである。The second aspect of the present invention is Cr 0.5 to 1.3 wt.
%, Zr0.05-0.5wt%, Ag0.05-0.3wt%, Si
0.01 to 0.1 wt% and the balance substantially Cu.
【００１１】また、上記溶接用電極材料を形成する方法
の発明は、Ｃｒ0.5〜1.3ｗｔ％、Ｚｒ0.05〜0.5ｗｔ
％、Ａｇ0.05〜0.3ｗｔ％、および残部が実質上Ｃｕよ
りなる鋳塊を製作し、この鋳塊に熱間加工を加え、溶体
化処理温度900℃〜1020℃にて処理し、溶体化処理後の
素材断面積に比し5〜70％冷間加工を処し、時効処理温
度430℃〜500℃の熱処理を行うことにより形成すること
を特徴とするものである。Further, the invention of the method for forming the welding electrode material is such that Cr 0.5 to 1.3 wt% and Zr 0.05 to 0.5 wt.
%, Ag 0.05 to 0.3 wt%, and the balance being substantially Cu, and the ingot is subjected to hot working and treated at a solution treatment temperature of 900 ° C to 1020 ° C to form a solution. It is characterized in that it is formed by subjecting the material to a cold working of 5 to 70% of the cross-sectional area of the material after the treatment and performing a heat treatment at an aging treatment temperature of 430 to 500 ° C.
【００１２】また、上記溶接用電極材料を形成する方法
の第２の発明は、Ｃｒ0.5〜1.3ｗｔ％、Ｚｒ0.05〜0.5
ｗｔ％、Ａｇ0.05〜0.3ｗｔ％、Ｓｉ0.01〜0.1ｗｔ％、
および残部が実質上Ｃｕよりなる鋳塊を製作し、この鋳
塊に熱間加工を加え溶体化処理温度900℃〜1020℃にて
処理し、溶体化処理後の素材断面積に比し5％〜70％冷
間加工を処し、時効処理温度430℃〜500℃の熱処理を行
うことにより形成することを特徴とするものである。A second invention of the method for forming the welding electrode material is Cr 0.5 to 1.3 wt% and Zr 0.05 to 0.5.
wt%, Ag0.05-0.3wt%, Si0.01-0.1wt%,
Also, a slab made of Cu, the remainder of which is made substantially, is subjected to hot working to the slab at a solution treatment temperature of 900 ° C to 1020 ° C, which is 5% of the material cross-sectional area after the solution treatment. It is characterized in that it is formed by subjecting to cold working up to 70% and performing heat treatment at an aging treatment temperature of 430 ° C to 500 ° C.
【００１３】[0013]
【作用】本発明者は前記課題を解決するため、種々実験
を行った結果、従来のＣｕーＣｒーＺｒ合金の機械的性
質および導電率を下げずに、300℃以上の高温特性を向
上させることができたものである。そのためには、Ｃｕ
ーＣｒーＺｒにＡｇを0.05〜0.3ｗｔ％の範囲で添加し
た鋳塊を製作し、所定の熱間加工を加え、溶体化処理温
度900℃〜1020℃にて処理する。そして、溶体化処理後
の素材断面積に比し５〜７０％の冷間加工を処し、時効
処理温度430℃〜500℃の熱処理を行うことにより解決で
きる知見を得たものである。The present inventor has conducted various experiments to solve the above problems, and as a result, improves the high temperature characteristics of 300 ° C. or higher without lowering the mechanical properties and electrical conductivity of the conventional Cu—Cr—Zr alloy. I was able to do it. To do that, Cu
-Cr-Zr is added with Ag in the range of 0.05 to 0.3 wt% to produce an ingot, which is subjected to predetermined hot working and treated at a solution treatment temperature of 900 ° C to 1020 ° C. Then, the knowledge that can be solved is obtained by performing cold working at 5 to 70% of the material cross-sectional area after solution treatment and performing heat treatment at aging treatment temperature of 430 ° C to 500 ° C.
【００１４】また、上記の配合に加えて、Ｓｉ0.01〜0.
1ｗｔ％を配合し、これに上記と同様の処理を行うもの
であってもよい。In addition to the above composition, Si0.01-0.
You may mix | blend 1 wt% and perform the same process as the above to this.
【００１５】本発明は、従来公知のＣｕーＣｒーＺｒ合
金の機械的性質および導電率の性能をより向上させなが
ら、高温硬さの低下を従来公知の製品より少なくしよう
とするものである。そのためには、本発明の電極材料
は、Ｃｒ0.5〜1.3ｗｔ％、Ｚｒ0.05〜0.5ｗｔ％、Ａｇ
0.05〜0.3ｗｔ％及び残部が実質上Ｃｕよりなるものと
する。このようにすることにより、耐熱性、特に硬度の
軟化温度を上げることを可能としたものである。The present invention intends to further improve the mechanical properties and conductivity performance of the conventionally known Cu-Cr-Zr alloy, while reducing the decrease in high temperature hardness as compared with the conventionally known products. For that purpose, the electrode material of the present invention contains Cr 0.5 to 1.3 wt%, Zr 0.05 to 0.5 wt% and Ag.
0.05 to 0.3 wt% and the balance substantially Cu. By doing so, it is possible to raise the heat resistance, especially the softening temperature of hardness.
【００１６】また、これらの配合により、ＡｇとＺｒ添
加による相乗効果によって、400℃までの硬度低下がブ
リンネル硬さで、常温硬さに対して１０％以内となる。
また、析出硬化処理後、硬さがＨＲＢ７５以上であり、
導電率がＩＡＣＳ％70以上となる。Further, with these blends, due to the synergistic effect of the addition of Ag and Zr, the decrease in hardness up to 400 ° C. is the Blinnel hardness within 10% of the room temperature hardness.
Further, after the precipitation hardening treatment, the hardness is HRB75 or more,
The electric conductivity becomes IACS% 70 or more.
【００１７】次に、各添加元素について説明する。ま
ず、ＣｒはＣｕと合金化した後、固溶化させ析出硬化す
ることにより、導電率をあまり低下させずに耐熱性を向
上させることは、従来より知られている。そして、その
配合量が0.5ｗｔ％未満であっては析出量不足により、
機械的強度を満足させず、高温硬さの低下をきたすもの
となる。また、Ｃｒの配合量が1.3ｗｔ％を超えると、
合金中にクローム酸化物を発生させやすく、導電率を満
足させることができない。Next, each additive element will be described. First, it has been conventionally known that Cr is alloyed with Cu, and then solid-soluted and precipitation hardened to improve heat resistance without significantly lowering conductivity. And, if the blending amount is less than 0.5 wt%, the precipitation amount is insufficient,
The mechanical strength is not satisfied and the high temperature hardness is lowered. Further, if the compounding amount of Cr exceeds 1.3 wt%,
Chromium oxide is easily generated in the alloy and the conductivity cannot be satisfied.
【００１８】また、Ｚｒは導電率を下げずに耐熱性及び
機械的強度を向上させる元素である。そして、Ｚｒの添
加量が0.05％未満では効果がない。また、0.5ｗｔ％を
超えて添加すると、合金中のＺｒ酸化物を発生させやす
く、熱間での展伸性がなくなり、材料に亀裂が入りやす
くなる。また、機械的強度の伸びが低下する。Zr is an element which improves heat resistance and mechanical strength without lowering the conductivity. And, if the added amount of Zr is less than 0.05%, there is no effect. Further, if added in excess of 0.5 wt%, Zr oxide in the alloy is likely to be generated, extensibility during hot is lost, and the material is likely to be cracked. In addition, the elongation of mechanical strength decreases.
【００１９】また、Ａｇは300℃〜400℃での軟化を防ぐ
目的で用いられるが、配合量が0.05ｗｔ％未満ではその
効果がない。また、0.3ｗｔ％を超えるものとしても、
軟化防止効果の向上が、それほど望めないものとなり不
経済となる。Further, Ag is used for the purpose of preventing softening at 300 ° C. to 400 ° C., but if the compounding amount is less than 0.05 wt%, it has no effect. Moreover, even if it exceeds 0.3 wt%,
It is uneconomical because the improvement of the softening prevention effect is not so desirable.
【００２０】また、Ｓｉは溶湯の脱酸効果を促進し、機
械的強度を向上させるとともに耐熱性を向上する。しか
し、Ｓｉの添加が0.01ｗｔ％未満ではその効果がなく、
また、0.1ｗｔ％を超えると導電率を低下させるものな
る。Further, Si promotes the deoxidizing effect of the molten metal, improves the mechanical strength and heat resistance. However, if the addition of Si is less than 0.01 wt%, the effect will not be obtained,
Further, if it exceeds 0.1 wt%, the electric conductivity is lowered.
【００２１】[0021]
【表１】 表１の配合により所定のフラックスを使用し、大気溶解
にて鋳塊(φ80×200Ｌ)を製作した。その鋳塊を面削(φ
75×200Ｌ)し、これを熱間加工(φ35×Ｌ)した後、溶体
化処理(1000℃×90ｍｉｎ)を行った。次に、これに冷間
加工(φ30×ｌ)を施した。この場合の冷間加工率は約27
％であった。これを時効処理(460℃×140ｍｉｎ)後、各
種テストピースを製作した。[Table 1] The ingot (φ80 × 200L) was produced by melting in air using a prescribed flux according to the composition of Table 1. Face cutting the ingot (φ
75 × 200 L), hot working (φ35 × L), and solution treatment (1000 ° C. × 90 min). Next, this was subjected to cold working (φ30 × l). The cold working rate in this case is about 27.
%Met. After subjecting this to aging treatment (460 ° C. × 140 min), various test pieces were manufactured.
【００２２】[0022]
【表２】 機械的性質および導電率測定結果について考察すると、
全試料とも機械的性質および導電率の規格を一様に満足
させているが、Ｚｒを添加したものは引張り強さが増す
ことがわかる。また、Ａｇを添加することによる導電率
の低下は、実用上殆ど問題ない。[Table 2] Considering mechanical properties and conductivity measurement results,
Although all the samples uniformly satisfy the specifications of mechanical properties and conductivity, it is understood that the one to which Zr is added has an increased tensile strength. In addition, the decrease in conductivity due to the addition of Ag has practically no problem.
【００２３】[0023]
【表３】 [Table 3]
【００２４】[0024]
【表４】 高温硬さについて考察すると、Ｚｒを添加してあるもの
と、そうでないものとの差が明らかにでるが、これは従
来公知である。しかし、Ｚｒの他にＡｇを添加している
ものと添加していないものとでは、全体的にブリネル硬
度測定に於いての打痕径が小さく、耐熱性の良さを示し
ている。また、Ａｇを添加することにより、３００℃〜
４００℃に於における硬度低下の減少が、Ｃｕ−Ｃｒ合
金およびＣｕ−Ｃｒ−Ｚｒ合金にも有用であることが判
明した。[Table 4] Considering the high temperature hardness, the difference between those with Zr added and those without Zr is apparent, which is conventionally known. However, in the case where Ag was added in addition to Zr and the case where Ag was not added, the dent diameter in Brinell hardness measurement was small as a whole, and good heat resistance was exhibited. In addition, by adding Ag,
It has been found that the reduction in hardness reduction at 400 ° C is also useful for Cu-Cr and Cu-Cr-Zr alloys.
【００２５】また、Ｎｏ７およびＮｏ８に於てＳｉを添
加したが、このＳｉ添加により更に耐熱性が向上するこ
とが顕著に表れている。しかし、Ｓｉを添加することに
より、導電率が下がることが判明しているので、その添
加量については慎重を要するものである。Further, Si was added in No. 7 and No. 8, but it is noticeable that the addition of Si further improves the heat resistance. However, since it has been found that the conductivity is lowered by adding Si, it is necessary to be careful about the addition amount.
【００２６】次に、焼鈍硬さについて考察すると、高温
硬さと比例したような結果となった。Ｚｒを添加したも
のは３００℃〜５００℃に於て常温より少し硬さが増し
ている。これは、実験材の時効処理温度または時効処理
時間が多少不足していたため、更に時効処理と同じよう
な硬化が進んだためと考えられる。Next, when considering the annealing hardness, the results were in proportion to the high temperature hardness. The hardness to which Zr is added is slightly higher than room temperature at 300 ° C to 500 ° C. This is probably because the aging treatment temperature or the aging treatment time of the experimental material was somewhat insufficient, and therefore the hardening similar to the aging treatment proceeded further.
【００２７】この、本発明実施例のＮｏ６、Ｎｏ７およ
びＮｏ８の材料を電極材として使用した場合、従来より
耐熱性の良好であったＣｕ−Ｃｒ−Ｚｒ合金に、Ａｇお
よびＳｉを添加する事により、更に耐熱性が向上したも
のとなった。When the No. 6, No. 7 and No. 8 materials of the embodiment of the present invention are used as the electrode material, by adding Ag and Si to the Cu--Cr--Zr alloy, which has a better heat resistance than before, by adding Ag and Si. The heat resistance was further improved.
【００２８】[0028]
【発明の効果】本発明は上述の如く従来のＣｕ−Ｃｒ合
金およびＣｕ−Ｃｒ−Ｚｒ合金の機械的性質を向上させ
導電率をあまり損なうことなく、耐熱性も向上させるこ
とができたものである。As described above, the present invention improves the mechanical properties of conventional Cu-Cr alloys and Cu-Cr-Zr alloys, and can improve the heat resistance without significantly impairing the electrical conductivity. is there.
【００２９】そのため、被溶接材と接触する電極部分が
３００℃以上の高温となっても、軟化され、バリがでた
り変形を生じたりする事が少なくなるものである。Therefore, even if the electrode portion in contact with the material to be welded is heated to a high temperature of 300 ° C. or higher, it is less likely to be softened and cause burr or deformation.
【図１】比較例と実施例の高温硬さ比較図である。FIG. 1 is a high temperature hardness comparison diagram of a comparative example and an example.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 日高 勝人 神奈川県津久井郡津久井町太井830番地の ５ 株式会社エス・エム・ケイ内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsuto Hidaka 5 830, Oi, Tsukui-cho, Tsukui-gun, Kanagawa Prefecture 5
Claims (4)
ｔ％、Ａｇ0.05〜0.3ｗｔ％、および残部が実質上Ｃｕ
よりなる溶接用電極材料。1. Cr 0.5-1.3 wt%, Zr 0.05-0.5 w
t%, Ag 0.05 to 0.3 wt%, and the balance substantially Cu
Made of welding electrode material.
ｔ％、Ａｇ0.05〜0.3ｗｔ％、Ｓｉ0.01〜0.1ｗｔ％、お
よび残部が実質上Ｃｕよりなる溶接用電極材料。2. Cr 0.5-1.3 wt%, Zr 0.05-0.5 w
A welding electrode material consisting of t%, Ag0.05 to 0.3 wt%, Si0.01 to 0.1 wt%, and the balance substantially Cu.
ｔ％、Ａｇ0.05〜0.3ｗｔ％、および残部が実質上Ｃｕ
よりなる鋳塊を製作し、この鋳塊に熱間加工を加え、溶
体化処理温度900℃〜1020℃にて処理し、溶体化処理後
の素材断面積に比し5〜70％冷間加工を処し、時効処理
温度430℃〜500℃の熱処理を行うことにより形成するこ
とを特徴とする溶接用電極材料の製造方法。3. Cr 0.5-1.3 wt%, Zr 0.05-0.5 w
t%, Ag 0.05 to 0.3 wt%, and the balance substantially Cu
Made of ingot, hot-worked to this ingot, processed at solution heat treatment temperature 900 ℃ ~ 1020 ℃, 5 ~ 70% cold working compared to the material cross-sectional area after solution heat treatment And a heat treatment at an aging treatment temperature of 430 ° C. to 500 ° C. to form the electrode material for welding.
ｔ％、Ａｇ0.05〜0.3ｗｔ％、Ｓｉ0.01〜0.1ｗｔ％、お
よび残部が実質上Ｃｕよりなる鋳塊を製作し、この鋳塊
に熱間加工を加え溶体化処理温度900℃〜1020℃にて処
理し、溶体化処理後の素材断面積に比し5〜70％冷間加
工を処し、時効処理温度430℃〜500℃の熱処理を行うこ
とにより形成することを特徴とする溶接用電極材料の製
造方法。4. Cr 0.5 to 1.3 wt%, Zr 0.05 to 0.5 w
t%, Ag 0.05 to 0.3 wt%, Si 0.01 to 0.1 wt%, and the balance being substantially Cu, and the ingot is subjected to hot working to obtain a solution treatment temperature of 900 ° C. to 1020. For welding, characterized by being formed by heat treatment at ℃, aging treatment temperature of 430 ℃ to 500 ℃, cold working 5 to 70% of the material cross-sectional area after solution heat treatment Manufacturing method of electrode material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15369894A JPH0819890A (en) | 1994-07-05 | 1994-07-05 | Electrode material for welding and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15369894A JPH0819890A (en) | 1994-07-05 | 1994-07-05 | Electrode material for welding and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0819890A true JPH0819890A (en) | 1996-01-23 |
Family
ID=15568170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15369894A Pending JPH0819890A (en) | 1994-07-05 | 1994-07-05 | Electrode material for welding and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0819890A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2771038A1 (en) * | 1997-11-14 | 1999-05-21 | Lorraine Laminage | Fabrication of resistance spot welding electrode |
| GB2406579B (en) * | 2002-07-18 | 2006-04-05 | Honda Motor Co Ltd | Copper alloy, method, of manufacturing copper alloy |
| US7181338B2 (en) | 2004-12-14 | 2007-02-20 | Denso Corporation | Knock determining apparatus for internal combustion engine |
| US7219006B2 (en) | 2005-07-15 | 2007-05-15 | Denso Corporation | Knock determining apparatus |
| US7243529B2 (en) | 2003-07-03 | 2007-07-17 | Denso Corporation | Knock detecting apparatus for internal combustion engine |
| KR100879210B1 (en) * | 2004-06-22 | 2009-01-16 | 현대중공업 주식회사 | Manufacturing Method of Chromium Copper Contact Tips with Superior High-Temperature Anti-Wear Performance |
| US8020429B2 (en) | 2006-06-28 | 2011-09-20 | Toyota Jidosha Kabushiki Kaisha | Device and method for determining knocking of internal combustion engine |
| US8042381B2 (en) | 2006-05-29 | 2011-10-25 | Toyota Jidosha Kabushiki Kaisha | Knocking determination apparatus and knocking determination method for internal combustion engine |
| CN113308620A (en) * | 2021-05-27 | 2021-08-27 | 西安斯瑞先进铜合金科技有限公司 | Copper-chromium-zirconium alloy and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5022740A (en) * | 1973-07-02 | 1975-03-11 | ||
| JPH05277755A (en) * | 1991-12-09 | 1993-10-26 | Furukawa Electric Co Ltd:The | Alloy for spot welding electrode for al alloy sheets, manufacture thereof and spot welding using this |
-
1994
- 1994-07-05 JP JP15369894A patent/JPH0819890A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5022740A (en) * | 1973-07-02 | 1975-03-11 | ||
| JPH05277755A (en) * | 1991-12-09 | 1993-10-26 | Furukawa Electric Co Ltd:The | Alloy for spot welding electrode for al alloy sheets, manufacture thereof and spot welding using this |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2771038A1 (en) * | 1997-11-14 | 1999-05-21 | Lorraine Laminage | Fabrication of resistance spot welding electrode |
| GB2406579B (en) * | 2002-07-18 | 2006-04-05 | Honda Motor Co Ltd | Copper alloy, method, of manufacturing copper alloy |
| US7243529B2 (en) | 2003-07-03 | 2007-07-17 | Denso Corporation | Knock detecting apparatus for internal combustion engine |
| KR100879210B1 (en) * | 2004-06-22 | 2009-01-16 | 현대중공업 주식회사 | Manufacturing Method of Chromium Copper Contact Tips with Superior High-Temperature Anti-Wear Performance |
| US7181338B2 (en) | 2004-12-14 | 2007-02-20 | Denso Corporation | Knock determining apparatus for internal combustion engine |
| US7219006B2 (en) | 2005-07-15 | 2007-05-15 | Denso Corporation | Knock determining apparatus |
| US8042381B2 (en) | 2006-05-29 | 2011-10-25 | Toyota Jidosha Kabushiki Kaisha | Knocking determination apparatus and knocking determination method for internal combustion engine |
| US8020429B2 (en) | 2006-06-28 | 2011-09-20 | Toyota Jidosha Kabushiki Kaisha | Device and method for determining knocking of internal combustion engine |
| CN113308620A (en) * | 2021-05-27 | 2021-08-27 | 西安斯瑞先进铜合金科技有限公司 | Copper-chromium-zirconium alloy and preparation method thereof |
| CN113308620B (en) * | 2021-05-27 | 2022-04-08 | 西安斯瑞先进铜合金科技有限公司 | Copper-chromium-zirconium alloy and preparation method thereof |
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