Analysis and Control of Inclusions in Martensitic Steel for Valves 在线阅读 下载PDF
Author of the article:ZHANG Min;XIE Xin;ZENG Jianhua;WU Guorong
Author's Workplace：State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Pangang Group Institute Co., Ltd.,Panzhihua 617000, China
Key Words：martensitic steel for valves inclusions refining slag rate of inclusion in rolling products
Abstract：
Aiming at the low qualified rate of inclusion rating of martensitic valve steel rolled by a special steel plant in China, through the systematic analysis of rolled inclusions and the combination of existing ladle slag composition, the optimal composition of ladle slag which is beneficial to absorb the air valve steel inclusions was established. The application of this technology can effectively improve the inclusion rating rate and stabilize the product quality. After the application of this technology, the qualified rate of inclusions in the steel rolled by air valve increased from about 78% to more than 97%.
