从模样的制作、涂料的涂敷、浇注系统的确定、填砂紧实、浇注等几个方面详细地介绍了用消失模铸造工艺生产大型薄壁耐热钢坩埚铸件的工艺方法。分析并总结了铸件出现塌陷、涨箱、渗漏、渣孔等质量问题的原因及解决措施。实践表明,该工艺生产的坩埚表面光洁,尺寸准确,使用寿命长,是生产类似铸件的首选工艺。 The process of producing large-scale thin-walled heat-resistant steel crucible castings by means of lost foam casting process is introduced in detail from the appearance making, the coating of paint, the determination of pouring system, the compaction of sand filling and pouring. Analyzed and summarized the causes of the quality problems such as collapsing, uplifting, leakage, slag hole and their solutions. Practice shows that the crucible produced by the process has a smooth surface, an accurate size and a long service life, and is the preferred process for producing a similar casting.