| 摘要 |
PURPOSE:To remarkably increase the releasability of mold for rubber product without deteriorating the performance such as physical and chemical stability, thermal resistance, thermal shock resistance, etc., by forming, at least the surface in contact with molded material with ceramics. CONSTITUTION:The desired mold is formed by using, for example, ceramics (silicon carbide and alumina of 99% are suitable). Furthermore, from an economical point of view, it is preferable that only the surface in contact with the molded material is formed with ceramics. USE:Mold for molding golf balls, etc. |
