1.概述 拉矫辊是方坯连铸拉矫机部分的主要部件,每台方坯连铸机需用12根。该辊工作环境恶劣,受传动扭矩大,故选用 30CrMn2MoB钢制造,要求炼钢(脱氧、去氢)→浇注(真空)→锻造(锻造比、始锻温度,终锻温度)→退火(去氢,消除白点)→粗加工(留合适的余量、尖角倒圆)→热处理(抑制缺陷扩展、立即回火预防开裂)→精加工等各个环节都 1. Overview The straightening roller is the main part of the billet straightening and straightening machine. Each billet caster needs 12 pieces. The roller work environment is harsh, driven by the transmission torque, it is made of 30CrMn2MoB steel, steelmaking (deoxidation, dehydrogenation) → pouring (vacuum) → forging (forging ratio, forging temperature, final forging temperature) → annealing , Eliminate the white point) → roughing (leaving the appropriate margin, rounded corners) → heat treatment (inhibition of defect expansion, immediate tempering to prevent cracking) → finishing and other links