Al2O3夹杂对厚规格X80M热轧钢带DWTT性能影响  

Effects of Al2O3 Inclusions on DWTT Properties of Thick X80M Hot Rolled Strip

作　　者：李人杰 刘成龙 魏晓东 李钊 Li Ren-jie;Liu Cheng-long;Wei Xiao-dong;Li Zhao(Office of Baotou Iron&Steel(Group)Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China;Technical Center of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China)

机构地区：[1]包头钢铁(集团)有限责任公司办公室,内蒙古包头014010 [2]内蒙古包钢钢联股份有限公司技术中心,内蒙古包头014010

出　　处：《包钢科技》2020年第1期33-38,共6页Science & Technology of Baotou Steel

摘　　要：通过优化钙处理过程氩气流量提高脱氧产物上浮到钢渣中效果、改进中包结构改善流场促进夹杂物上浮等措施,实现钢水T[O]<0.0015%,有效减少了钢水中Al2O3夹杂物的数量,板卷DWTT性能符合标准要求,实现了稳定开发生产22 mm厚X80M管线钢热轧钢带的目的。In this paper,it is introduced the T[O]<0.0015%is realized by such measures as optimizing the argon flow in calcium treatment process to improve the effects that deoxidation products float up into steel slag and improving the structure of tundish to improve flow field so that the flotation of inclusions is accelerated.As a result,the amount of Al2O3 inclusions in molten steel is effectively reduced,the DWTT properties of coiled sheet could meet the standard requirements as well as the aim of stable development and production of 22 mm thick hot-rolled strip with X80M pipeline steel was realized.

关 键 词：DWTT X80M管线钢 Al2O3夹杂 

分 类 号：TG142.71[一般工业技术—材料科学与工程]