摘要
A 40 t EAF+LF+VD→mold casting 20 t ingot→hot forging and heating process is employed to produce high-performance homogeneous steel.The solidification process of the 20 t ingot for the high-performance homogeneous steel was simulated by ProCAST casting simulation software.The distribution area and degree of segregation or porosity defects in the longitudinal section of the ingot were analyzed.The reason for the defect formation in the large-scale ingot for forging material was determined, which can be used as a guide for production.The results show that controlling the superheat of die casting and adding a riser heating agent improve ingot quality for forging high-performance homogeneous steel and that flaw detection defects are effectively controlled after forging.
