| 摘要 |
PURPOSE:To improve moldability, degreasing property and sintering property by using polyoxyalkylene series polyether as binder. CONSTITUTION:The binder is blended in metal powder or ceramic powder to make compound and this compound is subjected to injection molding by applying to an injection molding machine and next, after removing the binder (degrease), the degreased molding material is calcined to obtain the product. In this case, the binder composing of the polyoxyalkylene series polyether is used. As the polyoxyalkylene series polyether, polyoxyalkylene condensate, etc., of compound of polyethylene glycol, alcohol, single nucleus phenol, polyamine, etc., is exemplified. In this binder, besides the polyoxyalkylene series polyether, suitable quantity of wax, fatty acid, fat and oil, metallic soap, etc., can be blended as auxiliary component. |
