Slant Bed Body Casting Method Investigation Based on 3D-printing Technique
The structure and technical requirements of slant bed casting was introduced.In order to solve the traditional molding and core making process caused problems of ground foot surface boiling and blowhole defects,sand inclusions on rail surface and machete place,the bed body casting method optimization was conducted.Through using non-pressured and bottom return type gating system,the ingate entering the mold from rail surface vertically,it was possible make iron liquid filling the mold smoothly,avoid gas-involving and causing slag,and thereby ensuring the casting having not defects of slag inclusion and blowhole.Through using wood base plate+3D-pringting sand cores,selecting vertical slices type to divide sand cores,using sand cores to form external outline and internal cavity,using wood bottom plate to form gating system and to locating the sand cores,the casting dimensional accuracy was improved,the mold assembling difficult was reduced,and thereby the productivity was elevated,and also effectively avoided defects of boiling,sand inclusion.
万方数据
维普
