文章结合某单位现场实际生产过程中出现的不同形状的锭子断面,研究了真空电弧炉锭子断面形状与冷却水温、坩埚比、稳弧电流、电弧长度之间的关系。分析了不同形状的锭子断面形成的原因,提出了合理的电气参数,并通过工程实验对分析结果进行了实际验证。从而在某种程度上避免了不合理的锭子断面对整个产品质量及生产安全性造成的潜在威胁。 In this paper, the cross section shapes of vacuum arc furnace, cooling water temperature, crucible ratio, steady arc current and arc length were studied based on the cross sections of different shapes in the actual production process of a unit. The reasons for the formation of spindle sections with different shapes were analyzed. The reasonable electrical parameters were put forward and the results of the analysis were verified by engineering experiments. Thus to a certain extent, avoid the potential threat to the entire product quality and production safety caused by the unreasonable spindle section.