一机部模具材料与热处理经验交流会已于1975年12月21日至26日在广东肇庆召开。一机部系统有关工厂、研究单位、各省市机械局、冶金部的钢厂及高等院校的代表约150余人,参加了这次会议。会议期间以阶级斗争为纲,坚持党的基本路线,认真学习了无产阶级专政理论和有关文件;交流了模具材料和热处理工作经验;讨论了锻模、压铸模、冷冲、冷镦模、冷挤模、精 A Machine Mold Materials and Heat Treatment Experience Exchange Conference was held in December 21, 1975 to 26 in Zhaoqing, Guangdong. A machine department system about factories, research institutes, provincial and municipal machinery bureaus, Ministry of Metallurgical steel mills and institutions of higher learning about more than 150 people attended the meeting. During the meeting, he took the class struggle as the key link, upheld the party’s basic line, conscientiously studied the proletarian dictatorship theory and related documents, exchanged experience in mold materials and heat treatment, and discussed forging dies, die-casting molds, cold punching, cold heading dies, cold Extrusion die, fine