窄带钢卷管表面凹坑缺陷成因分析及预防  

REASON ANALYSIS AND PREVENTION FOR STEEL PIT ON SURFACE OF NARROW STRIP STEEL WELDED PIPE

作　　者：高影[1] 张秉青[1] 陈业雄 

机构地区：[1]唐山国丰钢铁有限公司技术部,河北唐山063300

出　　处：《河北冶金》2013年第11期27-29,共3页Hebei Metallurgy

摘　　要：针对352 mm窄带钢卷管后,部分钢卷表面出现大小不一的凹坑缺陷进行了全面分析。通过能谱分析并结合现场实际情况确定了该类"凹坑"缺陷是热轧中间坯边部被刮蹭产生的金属丝压入带钢表面,在焊管过程较大弯曲力下脱落而造成的,结合生产设备提出了预防措施。It is all - round analyzed the steel pit defects with different size on the surface of part of 352 mm narrow strip steel welded pipes. With energy spectrum analysis and combined with site actual situation, it is determined the defects is caused by the metal wire, which is brought about by scratching at the edge part of medium billet in hot rolling and pressed into the surface of the strip steel and then drops under large bending force in pipe welding procedure. Some preventing measures proposed.

关 键 词：352 mm窄带钢 卷管 凹坑 成因 预防 

分 类 号：TG335.7[金属学及工艺—金属压力加工]