The utility model relates to a waterproof sheath for cremation urn, which has a rectangular structure and is constituted from a box body and a cover by jet molding. 本实用新型涉及一种骨灰盒防水套盒,套盒整体呈矩形体,其特征在于由注塑而成的盒体与盒盖组成;
Analysis of gas jet diffused feature in gas-assisted injection molding 气辅成型中高压气体射流扩散特征分析
Thus in order to reduce the cost, it is compelled to make a high-precision aspheric surface mould with NC technology first, then jet molding a plastic aspheric optical parts and die pressing a glass aspheric optical parts with the mould. 因此,为降低成本,促使人们利用数控加工技术加工出高精度的模具,进行塑料非球面零件的注塑和玻璃非球面零件的模压,但注塑和模压技术通用性差。