Method used to reduce blow hole defects of die castings include 4 aspects:melting, patterndie. parameters of die casting process, and stripping agent.
前言: 消除压铸件气孔的方法包含4个方面: 熔炼、 模具、压铸参数和分型剂。
2
Based on summing up different kinds of technological process of precision forging of spur gear, a new upsetting extrusion process and patterndie are designed.
Plate patterndie is a common implement in rubber extruding technology and it's designing directly influences on the guality of finished extrudings and semi_finished extrudings.