Cleanness and Surface Quality Research of ER70s6 Weld Wire Steel
Wang Jianbin1,LI Jingshe1,YANG Shufeng1,HUANG Yunhua1,HU Daofeng2,LI Xiang2
1. Metallurgical and Ecological Engineering School, University of Science and Technology Beijing,Beijing 100083, China；2. Second Steel Plant of Nanjing Iron and Steel Corporation,Nianjing 210035, Jiangshu, China
Abstract：The purity of steel has direct effect on its mechanical properties. the oxygen content、inclusion quantity、the component of inclusion and the inclusion appearance were analyzed ,and also the surface flaw was counted. The result shows that the main type of inclusions in the ER70s6 weld wire steel is complex oxide system, including MnO Al2O3SiO2CaO system, MnO SiO2 system and there are two surface flaw on the continuous cast slab, one is surface pores, the other is surface crack.
