exothermic starter powder | 【连】 发热型开浇用保护渣 (Thornton et al. found that the use of an exothermic starter powder in conjunction with the normal casting powder substantially reduces the severity of longitudinal cracks. 桑顿等人发现将发热型开浇用保护渣与普通连铸保护渣联合使用会明显减轻纵裂纹的严重程度。) |