电渣熔铸是制造炮管毛坯的较好工艺,但在断口检验中,发现在纵向破断的纤维状断口的基底上,常夹有一些大小不等,与钢锭轴成一定角度分布的较平坦区,称此为“电渣铸态断口”,为消除和改善这种断口组织,一般采用1200～1100℃扩散退火处理。增加这道工序, Electroslag casting is a better process for the manufacture of barrel blank, but in the fracture inspection, found in the longitudinal rupture of the fibrous fracture on the base, often with some sizes, with the ingot shaft angle distribution of a more flat area , Called the “electroslag cast fracture”, in order to eliminate and improve the fracture of the organization, the general use of 1200 ~ 1100 ℃ diffusion annealing. Increase this process,