Patent ID: 11913105
Assignee: ZHEJIANG UNIVERSITY
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 6:
7. The method for preparing a copper alloy according to claim 6, wherein in the step (b), the annealing temperature and holding time are selected according to the following principles: taking the billet samples after cold working, and holding at 300, 350, 400, 450, 500, 550, 600° C. for 0.1, 0.5, 1, 2, 4, 8, 16, 24, 48, 99.6 h respectively; testing the Vickers hardness and conductivity of the samples, and calculating the product of the hardness number and the conductivity value, and taking the test temperature of the sample with the largest product as the product annealing temperature, and taking the test time of the sample with the largest product plus 0.4 as the product annealing holding time.