七十年代初,吉林工大参考国外资料,在国内首次研究成功不对称交-直流低温镀铁工艺(以下简称低温镀铁工艺)。继后许多单位投入了对镀铁电源、镀层组织与性能、镀液及工艺的研制与应用,使其由试验走上了大规模生产应用阶段。由于低温镀铁工艺具有镀液成份简单无毒、沉积速度快、镀层硬度高、耐磨性能好、成本低廉等特点,适用于被磨损机械零件的修复和金属表面强化处理,因此被国家经委列为 In the early seventies, Jilin Industry and Information Technology Co., Ltd. made reference to foreign materials for reference for the first time in China to study asymmetric AC-DC low-temperature iron plating process (hereinafter referred to as low-temperature iron plating process). Subsequent to many units put into the iron-plated power supply, coating structure and performance, bath and technology research and application, making it from the test embarked on a large-scale production and application stage. Because of low temperature iron plating process with simple non-toxic bath components, deposition speed, coating hardness, good wear resistance, low cost and so on, suitable for repair of worn mechanical parts and metal surface hardening, it was the State Economic Commission for