Design and Improvement of an Thin-wall Gray Iron Housing Casting Process
GEG Housing is an important part of the speed-cut motor of the lenze company in Germany,it is a kind of gray iron casting with complex inner cavity and large outline size,the wall thickness is relatively uniform.It requires high dimensional accuracy and appearance quality.The local draft angle of casting profile should be within 1°and there are 14 slender grooves in the shape,which makes it very difficult for the casting shape to get out of the mold.It is found that the upper surface of the casting is easy to produce porosity defects and a large amount of core sand enters the sand treatment system,which affects the performance stability of molding sand.The casting process was comprehensively improved,and the shell mold was replaced by the molding sand to form the casting shape.Finally,the casting defects were completely solved,and the batch supply was stable.
thin-wallhousingventingshell mold and shell corecasting process
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维普
