摘要
以普通铸铁为基体堆焊制造大型修边模具或修复损坏的模具 ,工艺简单可靠、经济实用 ,明显优于传统工艺。堆焊铸铁镶块的使用寿命与工具钢镶块经整体热处理后的使用寿命相当 ,可达 2 5 0 0 0件 ,比用D3 2 2焊条修复的冷冲模的使用寿命提高 3 0 %～ 5 0 %。
The application results indicated that the chemical composition、hardness、and microstructure of the hardfacing metal are all satisfied. It has simple technology to manufacture big die by hardfacing on the base metal of pig iron and repair the destroyed die. The hardfacing technology has much more advances and cheap than that of traditional process. The life of hardfacing die insert is as long as tool steel insert which was fully heat-treated. More than 25000 workpieces can be carried out by using the hardfacing die insert. The life of repaired cold die with new kind of hardfacing electrode bar can be raised up to 30%～50% than hardfaced with the electrode D322 under the same condition.
出处
《现代制造工程》
CSCD
北大核心
2003年第12期59-61,共3页
Modern Manufacturing Engineering
基金
机械工业部教育司科技基金资助项目 (952 51 2 1 4 )
