| 摘要 |
<p>PURPOSE:To suppress the mixing with a different material to a large extent when an inferior molded product of two or more kinds of members consisting of plastics different in kind is ground along with the gate parts at the time of the molding of the members by the same grinder. CONSTITUTION:Grinding treatment based on an inferior molded product is previously performed and the grinding only of a gate part is executed in the final stage of grinding and, after empty operation, different kinds of plastics are ground.</p> |
