20CrMnTiH齿轮钢稳定控钛工艺的优化  

OPTIMIZATION FOR STABLE Ti CONTROL OF STEEL GEAR STEEL 20CrMnTiH

作　　者：赵华森 王恭亮 梁振华 聂志水 Zhao Huasen;Wang Gongliang;Liang Zhenhua;Nie Zhishui(Technical Center of HBIS Group Shisteel Company,Shijiazhuang,Hebei,050031)

机构地区：[1]河钢集团石钢公司技术中心

出　　处：《河北冶金》2020年第1期49-51,共3页Hebei Metallurgy

摘　　要：针对20CrMnTiH齿轮钢冶炼过程中钛的吸收率与目标偏差较大的问题,对影响钛元素吸收的工艺环节进行了分析和优化。通过提高转炉终点的碳含量至0.08%~0.10%,控制出钢温度在1650℃左右,使用周转红包冶炼,稳定VD炉温度基础上保真空时间控制在11~12 min等措施,实现了对钛元素的稳定控制,成品钢中钛元素吸收率明显提高。In view of the large deviation between the titanium absorption rate and the target during the smelting process of 20CrMnTiH gear steel,the technological process affecting the titanium absorption was analyzed and optimized.By increasing the carbon content of converter end-point to 0.08%~0.10%,controlling the tapping temperature about 1650℃,using turnover red ladle smelting,stabilizing the temperature of VD furnace and keeping the vacuum time to 11~12 min,the stable control of titanium element is realized,and the absorption rate of titanium element in finished steel is obviously increased.

关 键 词：齿轮钢 20CrMnTiH 控Ti 终点碳含量 出钢温度 红包 保真空时间 

分 类 号：TF762.3[冶金工程—钢铁冶金]