| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a copper alloy sheet material excellent in electrical conductivity, strength and bendability, and to provide a method for manufacturing the copper alloy sheet material in which the copper alloy sheet material can be manufactured by a simple process at low cost. <P>SOLUTION: A cast slab obtained by melting and casting a raw material of a copper alloy having a composition containing, by mass, 1.0-4.0% Ni and 0.3-1.0% Si, and the balance being Cu and inevitable impurities, is subjected to hot rolling or homogenization, followed by aging treatment at 450-600°C for 1-20 hours, cold rolling at a rolling rate of 90% or more, and then low temperature annealing at 300-430°C for 1-48 hours. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
