| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of molding a sand blasting machine jet nozzle which does not generate a deformation due to a dimensional reduction. SOLUTION: A nozzle unit accessory 1 is molded, the nozzle unit accessory is engaged in a jet nozzle mold 2, and the jet nozzle is molded by an injection molding method by a cast-in insert. Since the nozzle unit accessory is a U-shaped unit in which an opening is installed in a column of a trumpet-shaped opening spread at the bottom or the bottom, and the material of the nozzle unit accessory and the injected jet nozzle are the number material of the same quality, such as a UHMW PE (ultra-high molecular weight polyethylene), etc., the molded jet nozzle is not shrunk, and yet more beautiful optimum quality of an external appearance shape is performed. COPYRIGHT: (C)2008,JPO&INPIT |
