Based on ladle refining , wide flat anvil forge with great forging ratio , heat treatment process of " normalizing + spheroidizing + diffusion hydrogen " , the cold roll blank has been forged succesfully , and the percent of pass is up to 90 . 5 % 采用钢包精炼炉冶炼、宽平砧大压下量锻造、 “正火+球化+扩氢”的热处理工艺,成功制造了冷辊坯,合格率达90 . 5 。
Abstract : based on ladle refining , wide flat anvil forge with great forging ratio , heat treatment process of & quot; normalizing + spheroidizing + diffusion hydrogen & quot; , the cold roll blank has been forged succesfully , and the percent of pass is up to 90 . 5 % 文摘:采用钢包精炼炉冶炼、宽平砧大压下量锻造、 “正火+球化+扩氢”的热处理工艺,成功制造了冷辊坯,合格率达90 . 5 。