Casting powder for continuous casting of high-carbon cutting tool steel and preparation method of casting powder

• Main Authors: JIANG YUNAN, HAN YU, GONG ZHEN, WANG QUANZHOU, LIU ZHIPU, ZHANG YINGZHENG, WU GANG, ZUO YUANHONG
• Format: Patent
• Language: Chinese; English
• Published: 07.07.2023
• Subjects: ALLOYS; CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses casting powder for continuous casting of high-carbon cutting tool steel and a preparation method of the casting powder, and belongs to the technical field of steel smelting. The casting powder for continuous casting of the high-carbon cutting tool steel comprises the following components in percentage by mass: 25 to 35 percent of CaO, 35 to 45 percent of SiO2, 1.0 to 2.0 percent of Al2O3, 2.0 to 5.0 percent of Fe2O3, 7 to 15 percent of MnO, 2 to 5 percent of Na2O, 1 to 3 percent of K2O, 3 to 5 percent of MgO and 0 to 5 percent of C. The casting powder for continuous casting of the high-carbon cutting tool steel, which is applied to the high-carbon cutting tool steel, comprises the following chemical components in percentage by mass: 0.72 to 0.85 percent of C; 0.50% to 0.70% of Si; mn: 1.60 to 2.0%; less than or equal to 0.015% of P; s is less than or equal to 0.010%; 1.50% to 1.80% of Cr; 0.50% to 0.80% of Cu; and the balance of iron and inevitable impurities. The casting powder for co