Copper alloy useful as welded tube of car radiator

Abstract

Abstract PURPOSE:To enable formation of a tube for a car radiator by welding, while inhibiting deterioration of corrosion-resistance at the welded part, by using a Cu alloy containing specified amounts of Zn, P and Si. CONSTITUTION:A cast ingot, comprising, by wt%, 25-35 Zn, 0.005-0.5 P, 0.005-2 Si and the balance Cu, is scarfed, annealed 2hr at 500 deg.C for instance, and then formed into a strip by repetition of cold-working and intermediate annealing. After the strip is slit by width of 30mm. or so, it is formed into a tube. Its seam 2 is welded to form a welded tube 1 for a car radiator.

Inventors

• 👤 Kiichi Akasaka
• 👤 赤坂　喜一
• 👤 Yoshimasa Ooyama
• 👤 大山　好正
• 👤 Kenichi Komata
• 👤 小又　憲一
• 👤 Taku Kuroyanagi
• 👤 黒柳　卓

Bibliographic Details