| 摘要 |
PURPOSE: A copper alloy is provided which has excellent properties making them eminently suitable for use as connectors, lead frames, springs and other electrical applications and has an excellent and unusual combination of mechanical strength, formability, thermal and electrical conductivities, and stress relaxation properties. CONSTITUTION: A copper base alloy consisting essentially of tin in an amount from about 1.0 to 11.0% by weight, phosphorous in an amount from about 0.01 to 0.35% by weight, iron in an amount from about 0.01 to about 0.8% by weight, optionally up to 15 wt% zinc, and the balance essentially copper, including phosphide particles uniformly distributed throughout the matrix, is described. The alloy is characterized by an excellent combination of physical properties. The process of forming the copper base alloy described herein includes casting, homogenizing, rolling, process annealing and stress relief annealing.
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