摘要
针对冷轧连续退火带钢表面麻点缺陷,结合连续退火机组的设备与工艺特点,对麻点缺陷产生原因进行了分析,并提出相应预防措施。结果表明,由于退火炉内O2含量及气氛露点控制不当及张力控制不好造成炉辊打滑导致结瘤,在带钢表面形成麻点。实际生产中,严格控制炉内O2含量在0.003%~0.005%,气氛露点控制在-30^-45℃,并结合张力控制、来料清洁度控制及炉辊在线清理等,可预防麻点的形成。
For the pitting defect on the strip surface during cold rolled continuous annealing process , integrated with the equipment and technology , the cause of pitting defect was analyzed and the prevention measures were proposed .The results show that the O 2 , the dew points in the annealing furnace and the pulling force out of control lead furnace roller to slip and nodule, which are the main reason of the strip pitting.In actual production, the O2 in furnace holds within 0.003%-0.005%and the dew point in the furnace holds within -30--45℃, and combined with pulling force control, keep the original strip cleanliness and the furnace roller cleaning online can prevent the strip surface from pitting .
出处
《金属热处理》
CAS
CSCD
北大核心
2014年第9期147-150,共4页
Heat Treatment of Metals
基金
唐山市科技计划项目(131302120b)
关键词
连续退火带钢
炉辊结瘤
麻点
措施
continuous annealing strip steel
furnace roll nodule
pitting
prevention measures
