Precipitation Control for the Improvement of Steel Sheet

Functions of steel sheets were given through combining many elementary technologies and optimizing them in high degree. Among them the contribution of precipitation controlling technology is significant. The paper introduces precipitation control of cementite in low carbon steel sheets, precipitation control of carbo-nitrides in ultra low carbon steel sheets and precipitation control of MnS in oriented electric steel sheets. Currently, the research group on control of microstructures and properties in steels through utilization of non-metallic inclusions is working actively on the subject, and its results are expected.