某发动机用Cu-Ni-Si生产工艺的确定
Determination the production process of Cu-Ni-Si alloy for the motor
-
摘要: 利用公司化学成分合格的材料, 对所需要的大电流连接器用Cu-Ni-Si合金进行工艺研发, 通过查阅文献和现有工艺结合的方式, 初步选择50%和65%两个不同的冷轧加工率、时效工艺选择460、480、500 ℃三个温度。通过正交实验, 对得出的所有结果进行汇总, 对材料显微组织、力学性能及电性能的变化规律进行分析, 结合不同加工工艺下的力学性能和电性能的检测结果, 同时考虑公司设备能力、生产效率等各种因素, 最终确定了某发动机大电流连接器用Cu-Ni-Si合金较优工艺为:冷加工率为50%、时效工艺为500 ℃×3 h, 综合性能达到HV(0.3 kg)为195~521、抗拉强度:630~710 MPa、屈服强度在470~600 MPa、延伸率大于13.5%、导电率大于45%IACS, 完全满足某发动机大电流连接器用Cu-Ni-Si合金带材的使用要求。Abstract: 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.
下载: