| 摘要 |
PURPOSE:To obtain a Cu alloy member having superior tension, electric conductivity and heat conductivity by subjecting a Cu alloy contg. specified amounts of Co and a rare earth element to soln. heat treatment in a magnetic field and working such as rolling. CONSTITUTION:A Cu alloy ingot contg. 0.3-10wt% Co and 0.03-1wt% rare earth element such as Y, Sm or Pr or misch metal is cast. The ingot is subjected to soln. heat treatment in a furnace at about 450-650 deg.C for 35-45hr. During this treatment, the interior of the furnace is kept at 500-600 deg.C for 6-8hr, and a magnetic field of 1,000-3,000Oe is applied. The alloy is then hot rolled and cold rolled to manufacture a Cu alloy member having superior tension, electric conductivity and heat conductivity and suitable for IC, LSI or a wire electrode.
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