The material selection, working out the process and repairing method in reform of the precisionforgingmachine to substitute with China-making spares are analyzed and improving plan proposed.
对精锻机关键备件的国产化从材质的选择、工艺的制订及修理进行了分析，并提出了改进方案。
2
The technology of precision roll forging by closed die groove of machine driven plough share are researched systematically.
系统研究了机引犁铧闭式型槽精密辊锻技术。
3
The enhancement of precision has been achieved in parts of forging or in parts of forging before lathing by developing the plastic machine of the ferrule. As a...