【摘要】 对２５ｋｇ真空凝壳炉用紫铜坩埚进行了系统研究，分析和讨论了影响紫铜坩埚损坏的各种因素，提出了延长紫铜坩埚寿命和提高坩埚利用率的有效方法。研究成果已成功地用于生产，并取得了可观的经济效益。更多还原

【Abstract】 The copper crucible for 25 kg vacuum skull furnace is systematically studied. The various factors effecting on the copper crucible failure are analyzed and discussed. The effective methods of elongating the service life of the copper crucible is indicated. The research results have been used in production successfully and considerable economical benefit has been achieved.更多还原