Abstract：According to the fracture surface characteristics of the bulb flat steel, a bend- closed rolling pass system which was suitable for producing bulb flat steel in semi- continuous rolling mills was developed based on the analysis of its rolling deformation rule and the production practice of special- shaped steel for many years, which made the breakthrough to solve the technical problems of roll- pass design on bulb flat steel produced in semi- continuous rolling mills. Meantime, the advanced "Continuous Induction Heating" method employed in the industry solved the bottleneck problem of the uneven heating and oxidization control of special steels. The quality of bulb flat steel reached the domestic leading level and met the demands of some key ships in the country.
丁光辉. 半连轧机组生产球扁钢孔型设计实践[J]. 中国冶金, 2018, 28(6): 66-70.
DING Guang- hui. Practice on pass design of bulb flat steel produced by semi- continuous rolling mills[J]. China Metallurgy, 2018, 28(6): 66-70.
2018, Vol. 28 
