Determination the production process of Cu-Ni-Si alloy for the motor

Qualified materials were used in the research and development of the Cu-Ni-Si alloy's technological process which is used for some of large current connector. And the existing technological process was summarized. Cold rolling rates were 50% and 65%, and heat preservation was 460 ℃, 480 ℃ and 500 ℃. Through the orthogonal experiment, all results of the testing were summarized. After that, the change rule of microstructure, mechanical property and electrical properties were analyzed. The equipment capability of the company, production efficiency and other factors were considered. The results show that the best technological process is that the cold rolling rate is 50%, the temperature is 500 ℃, and the time is 3 hours. Under this process, the materials could meet all the needs for Cu-Ni-Si alloy which is used for some of large current connector.