To provide a dice that prevents the occurrence of unevenness caused by foreign substances in a resin tube that is manufactured by extrusion molding.
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
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Masao Okabe
Shinichi Usui
Takao Ochi
Seiichiro Takahashi
Koji Yoshizawa
Masami Saito
Katsuhiko Kimura
Naofumi Tanaka
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