| 摘要 |
PURPOSE:To inhibit uneven dewaxing of injection-molded bodies and to produce sintered parts having satisfactory dimensional accuracy by setting the molded bodies on a base plate with uniformly distributed projections and heating the set molded bodies. CONSTITUTION:Molded bodies such as injection-molded bodies each consisting of metal or ceramic powder and a binder are set on a base plate such as a stainless steel plate with uniformly distributed projections. When the set molded bodies are dewaxed by heating, the binder flowing out of the bodies is rapidly removed from the space between the projections and the peripheries of the molded bodies are always in a uniform state, accordingly the strain of dimensional accuracy due to uneven removal of the binder is hardly caused. Though a smaller number of projections are preferably used in general so as to support the molded bodies, the number is properly regulated according to the weight and size of the molded bodies. |
