METALLIC CASTING WITH DESIGN AND MANUFACTURE OF ORTHOPEDICS IMPLANT WITH DESIGN

摘要

PROBLEM TO BE SOLVED: To manufacture a metallic casting with design by making a shell mold in the periphery of a pattern with design which makes by pressing a template with design to the thermal softening pattern removing the pattern with design from the shell mold, pouring and solidifying molten metal into the shell mold and removing the shell mold from the solidified metal. ;SOLUTION: The template 34 is made of a metal or a plastics having higher m.p. and distortion spot than these of metal or wax pattern. A metallic material made with a quick original pattern can be used to a pattern for making the template with design and a metallic mold. In the case of making the metallic casting with the metallic mold, tube shell mold is made by coating refractory particles onto the pattern with a spray, etc., The pattern with design is heated and removed from the shell mold, and a blast material is removed and the refractory martial is stuck to the cavity in the metallic mold. Molten metal is poured from a gate in the metallic mold, and after cooling the metallic mold and the metal, the solidified metal is taken out from the metallic mold and maeching or grinding is applied. By this method, a good investment cast product with design is surely obtd.;COPYRIGHT: (C)1998,JPO