It is considered that the temperature fluctuation of meniscus is a key factor for the surface defect formation of continuous casting billets.
据此认为，连铸弯月面温度波动是导致铸坯表面缺陷产生的一个重要原因。
2
Influence of the initial temperature fields and mold hardness on the shrinkage defect of ductile iron casting by EPC process was mainly investigated in this paper.
本文主要讨论了初始温度场和铸型硬度对消失模铸造球墨铸铁件收缩缺陷的影响。
3
To avoid forming layer defect, rising pouring temperature are using improved coating and selecting low density styrofoam pattern are a great help.