以质量为54.0 kg的发电机组过渡节箱体铸件为研究对象,对比分析了其重力浇注、自硬砂造型和负压铸型、消失模实型铸造工艺的成形技术特点。运用铸造模拟CAE软件对铸件凝固过程温度场分布和采温点冷却曲线变化趋势进行了理论性分析,完成了消失模铸造条件下一箱两件阶梯式浇注系统和一箱五件顶注法浇注系统两种不同工艺条件下的样品制作和生产试验,探索了从源头上依靠工艺设计来实现提高铸件工艺出品率、提高劳动生产率、消除铸件粘砂缺陷和涂料夹杂缺陷的具体措施。 Taking the mass of 54.0 kg as the transitional box castings of generator set, the characteristics of forming technology of gravity casting, self-hardening sand mold, negative pressure casting mold and lost foam mold casting were compared and analyzed. Casting simulation software CAE was used to analyze the distribution of temperature field and the change trend of the cooling curve at the temperature of the castings. The cascade casting system with one box and two cascade ladders and the five top-pouring methods System under two different process conditions of sample production and production test to explore from the source to rely on process design to improve casting process yield, improve labor productivity and eliminate the sticky sand casting defects and misclusions of concrete measures.