细长孔铸件的工艺设计与过程控制

Process Design and Control of Casting with Thin and Long Hole

针对细长孔压柱铸件结构特点,以及铸造生产过程中可能出现的铸件变形、铸孔偏心、裂纹、泥芯清砂困难等质量问题,有的放矢采取合理设计工艺方案、选用合适制芯材料,并加强过程控制,生产出符合技术要求的铸件,总结出细长孔铸件铸造工艺设计及过程控制经验,为类似铸件的生产提供有益的借鉴方案。

In view of the structural characteristics of slender hole pressure column castings and the quality problems such as defbmlation of casting, eccentricity- of casting holes, cracks, difficuhies in sand cleaning of core, the reasonable design technology scheme is adopted,and appropriate core-making materials are selected.The process control is strengthened to produce castings that meet the technical requirements,and the experience of casting process design and process control for slender hole castings is sumarized, which provides a useful reference scheme for the production of similar castings.