Molten seawater casting of high strength wear-resistant steel and steel with these characteristics

摘要

It includes: a manufacturing method of high-strength mart í nsitic smelting steel, which has strong resistance to wear of large parts under wear and impact conditions. These parts are used as antiskid coating for grinding and dye mining operations, and their chemical composition is 0.35-0 by weight, 55% C, 0.60-1.30%, if 0.60-1.40% Mn, 4.5-6.50% Cr, 0.0-0.60% Ni, 0.30-0.60% Mo, 0.0-0.70% Cu, 0.010-0.10% Cu, 0.0-0.10% Ti, 0.0-0.0050% Nb, less than 0.035% Nb, 0.005% Nb, less than 0.005% Nb. Methods include fusion,Washing and heat treatment. Fusion can be carried out in an electric arc furnace, using basic or acid fire-resistant or inductive furnaces. The combination into EAF as standard operation includes fusion, oxyinsulin, blocking, alfene and deoxygenation. Fusion in induction furnaces includes fusion, ammonia, nitrogen control in solution and deoxidization. Heat treatment includes thermometers in static or forced air, depending on the thickness of the component,And then there's a kind of thermal therapy 2.3.1.2.2. Smelting steel, with micro alloy additives, to achieve high degree of mildness and complete hardening in large-scale smelting pieces. Literally, the thickness can reach 14 inches, the hardness is Brinell, and it is better to be around 630 Bhn, but the conditions are applicable heat treatment conditions