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1、绪言著者认为造成等轴晶生成起因的铸型表面状态对铸造组织有极大的影响。可是关于铸型表面状态和铸件铸造组织之间关系的研究很少见到。仅A. Morales等对铸件表面组织进行过研究。本文研究铸型表面光洁度对等轴晶生成有何影响。因此把铸型表面加工成各种光洁度,根据光洁度研究铸件表面及断面宏观组织的变化,然后根据结晶游离学说进行研究。
1. INTRODUCTION The author believes that the surface condition of the mold that causes the formation of equiaxed grains has a great influence on the casting structure. However, few researches have been done on the relationship between the surface condition of the mold and the casting structure of the casting. Only A. Morales and others studied the surface texture of castings. This article studies how casting surface finish affects equiaxed grain formation. Therefore, the mold surface into a variety of finish, according to the finish of the casting surface and the cross section of the macro-organization changes, and then based on the theory of crystal free study.