Causes of central segregation and protective measures are described. 论述了中心偏析产生的原因及防止措施。
The mechanism and progress of soft reduction technology was introduced, the effect of the reduction on central segregation and solidified structure was analysed. 摘要介绍了轻压下技术的作用机理及工艺过程，分析了压下量对铸坯中心偏析及铸坯凝固组织的影响。
