铸坯表面缺陷对钢板质量影响简析

Effect on steel plate quality by the casting blank surface flaw

通过对重钢新区铸坯表面缺陷类型、分布与发生频率的调查分析，以及对带缺陷铸坯的跟踪轧制试验，分析并探讨典型铸坯表面缺陷在轧制过程中的演化行为。在以上试验的基础上，制定出重钢新区在当前轧制工艺条件下的铸坯清理新标准，达到降低工人清理量，实现部分铸坯带缺陷轧制的目标。

Types, distribution and Eequency of defects of casting billets in Chongqing steel new branch were analyzed in this paper, through pre-productions of casting billets with defects its actions in rolling process were discussed and analyzed. Based on the experiments new standard were formulated under current rolling process to reduce manual working, new production target were archived.