Production Practice of Inclusions Control in High Strength Steel for Automobile
The high-strength automotive steel produced by the LF+RH process flow was compared before and after adjusting the calcium treatment timing and optimizing the refining process.The key process indicators and inclusion control levels before and after the adjustment were compared.The results showed that the aluminum loss,titanium loss,tundish oxygen,and inclusion density and area rate of the steel in the tundish during the RH-to-tundish process were improved after the adjustment.The maximum inclusion level after adjustment was 1.5,and most of them were controlled within 1.0,the inclusion control was significantly improved,and there were no cracking incidents caused by inclusions during the material processing and forming process.
NETL
NSTL
万方数据
