抑制SWRH82B盘条组织网状渗碳体形成的工艺优化  

Optimization of Process for Inhibiting the Formation of Mesh Carbide in SWRH82B Wire Rod Structure

作　　者：孙晓鹏 Sun Xiaopeng(Liuzhou Iron and Steel Co.,Ltd.,Liuzhou Guangxi 545002,China)

机构地区：[1]柳州钢铁股份有限公司,广西柳州545002

出　　处：《山西冶金》2023年第6期146-147,153,共3页Shanxi Metallurgy

摘　　要：介绍了柳州钢铁股份有限公司第一轧钢厂轧制SWRH82B的生产经验,对网状渗碳体的形成原因探究发现,铸坯存在偏析和轧制过程中的风冷能力不足是产生网状渗碳体的根本原因。通过工艺优化,投入末端电磁搅拌技术、降低连铸过热度和增加轧后冷却能力,网碳比例和严重程度有了明显改善。The production experience of rolling SWRH82B at the First Rolling Plant of Liuzhou Iron and Steel Co.,Ltd.was introduced,and it was found that the fundamental reasons for the formation of network cementite were segregation in the casting billet and insufficient air cooling capacity during the rolling process.By optimizing the process,investing in end electromagnetic stirring technology,reducing the superheat of continuous casting,and increasing the cooling capacity after rolling,the proportion and severity of carbon mesh have been significantly improved.

关 键 词：SWRH82B 网状渗碳体 铸坯偏析 轧后快冷 

分 类 号：TG335[金属学及工艺—金属压力加工]