| 摘要 |
PROBLEM TO BE SOLVED: To provide a dice that prevents the occurrence of unevenness caused by foreign substances in a resin tube that is manufactured by extrusion molding. SOLUTION: The dice is used for molding the resin tube by applying melt extrusion to the resin component. The dice includes: an inlet of a melting resin component; an annular channel for molding the melting resin component inleted from the inlet into a tube-shape; a spiral channel for evenly inletting the melting resin component inleted from the inlet in circumferential direction of the annular channel; and a connection channel for connecting the spiral channel with the annular channel. Moreover, in the dice, a filter for eliminating the foreign substances included in the melting resin component is arranged in the connection channel. COPYRIGHT: (C)2011,JPO&INPIT |
