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Title:
CLAD METALS
Document Type and Number:
WIPO Patent Application WO/2011/152478
Kind Code:
A1
Abstract:
Provided are clad metals which combine excellent resistance to corrosion by electrolytic solutions and high electroconductivity, have excellent weldability in resistance welding, and suffer no peeling at the clad interfaces upon bending. The clad metals each comprises surface layers constituted of Ni or a Ni alloy and a base layer constituted of Cu or a Cu alloy. One of the clad metals is (1) a clad metal which has an overall thickness of 0.2 mm or less, in which, when the clad metal is subjected to a 90º bending test 10 times and a cross-section thereof is examined thereafter, no peeling at the clad interfaces is observed, and in which the number of repetitions of the bending that are required for the clad metal to break is 17 or more. Another is (2) a clad metal which has an overall thickness exceeding 0.2 mm and in which, when the clad metal is subjected to a 90º bending test at a radius of curvature that is twice the thickness of the clad metal and a cross-section thereof is visually examined thereafter, no peeling at the clad interfaces is observed. Still another is (3) a clad metal which has a strength of peeling between the Ni and the Cu of 4 N/mm or more.

Inventors:
YOSHIDA, Kentarou (Ltd 5-33, Kitahama 4-chome, Chuo-k, Osaka-shi Osaka 41, 〒5410041, JP)
吉田 健太郎 (〒41 大阪府大阪市中央区北浜四丁目5番33号 住友金属工業株式会社内 Osaka, 〒5410041, JP)
ARIZONO, Daisaku (Ltd 5-33, Kitahama 4-chome, Chuo-k, Osaka-shi Osaka 41, 〒5410041, JP)
有園 太策 (〒41 大阪府大阪市中央区北浜四丁目5番33号 住友金属工業株式会社内 Osaka, 〒5410041, JP)
YOSHIDA, Syuji (Ltd 5-33, Kitahama 4-chome, Chuo-k, Osaka-shi Osaka 41, 〒5410041, JP)
吉田 修二 (〒41 大阪府大阪市中央区北浜四丁目5番33号 住友金属工業株式会社内 Osaka, 〒5410041, JP)
KITA, Hayato (Ltd 5-33, Kitahama 4-chome, Chuo-k, Osaka-shi Osaka 41, 〒5410041, JP)
Application Number:
JP2011/062658
Publication Date:
December 08, 2011
Filing Date:
June 02, 2011
Export Citation:
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Assignee:
SUMITOMO METAL INDUSTRIES, LTD. (5-33, Kitahama 4-chome Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
住友金属工業株式会社 (〒41 大阪府大阪市中央区北浜四丁目5番33号 Osaka, 〒5410041, JP)
YOSHIDA, Kentarou (Ltd 5-33, Kitahama 4-chome, Chuo-k, Osaka-shi Osaka 41, 〒5410041, JP)
吉田 健太郎 (〒41 大阪府大阪市中央区北浜四丁目5番33号 住友金属工業株式会社内 Osaka, 〒5410041, JP)
ARIZONO, Daisaku (Ltd 5-33, Kitahama 4-chome, Chuo-k, Osaka-shi Osaka 41, 〒5410041, JP)
有園 太策 (〒41 大阪府大阪市中央区北浜四丁目5番33号 住友金属工業株式会社内 Osaka, 〒5410041, JP)
YOSHIDA, Syuji (Ltd 5-33, Kitahama 4-chome, Chuo-k, Osaka-shi Osaka 41, 〒5410041, JP)
吉田 修二 (〒41 大阪府大阪市中央区北浜四丁目5番33号 住友金属工業株式会社内 Osaka, 〒5410041, JP)
International Classes:
B32B15/01; B23K20/04; C22F1/08; C22F1/10; H01M2/26
Attorney, Agent or Firm:
SUGIOKA, Kanji et al. (K. SUGIOKA PATENT OFFICE, 2-5-10 Sonezaki, Kita-ku, Osaka-sh, Osaka 57, 〒5300057, JP)
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Claims: