摘要
为降低生产成本,济钢第一炼钢厂方坯铸机以铌铁代替钒铁生产HRB400等含铌钢种,由于铌为裂纹敏感性元素,其铸坯横裂纹发生率远远大于其它钢种。通过采取保护浇注方式和优化冷却制度等措施,解决了铸坯横裂纹缺陷,实现了方坯含铌钢的批量生产。
In order to reduce production cost, No.1 stoolmaking plant of Jinan stool produced Nb containing stools such as HRB400 with ferrovanadium instead of ferro-niobium. Because Nb is a crack-sensitive element, the transverse cracking rate of the Nb containing slab is far greater than that of other stool grade. By protective casting and optimizing cooling system etc, the transverse crack defects in the billet were solved, realizing batch production of Nb containing steel.
出处
《山东冶金》
CAS
2008年第3期36-37,共2页
Shandong Metallurgy
关键词
方坯连铸
含铌钢
横裂
工艺优化
billet continuous casting
Nb containing stool
transverse crack
process optimization
