自从1975年国内首次出现低温镀铁工艺以来,这项技术已有了很大进展.80年代后,董玉华研究出一种无需阳极刻蚀的镀铁工艺(简称无刻蚀镀铁工艺),并应用于机器零件如曲轴、直轴及平面类零件的批最修复.成品率达到99%以上.目前,此项技术已列为国家重点技术出口项目和“九五”国家重点技术推广项目.现就无刻蚀镀铁工艺的特点及其应用状况作一简介. Great progress has been made in this technology since the first domestic low-temperature iron plating process was introduced in 1975. After the 1980s, Dong Yuhua developed an iron plating process without anodic etching (referred to as an etching-free iron plating process) Applied to the machine parts such as crankshaft, straight shaft and flat parts of the most batch repair. Yield rate of 99%. At present, this technology has been listed as a national key technology export projects and the “Ninth Five-Year” national key technology promotion project. No etching of iron plating process characteristics and application of a brief introduction.