The Japan Steel Works, Ltd.

Osamu Sumida

Tetsuo Makida

Kenji Nishimoto

Tomonori Hashimoto

In order to ensure quality of pellets by eliminating temperature differences among extrusion nozzle holes with use of a heating medium flowing through heating channels only once and flowing out through a heating medium outlet, provided is a die plate for resin granulation, in which a plate main body () is divided into regions (A to n) for every 360/n (n=4, 6, or 8) degrees, or into first to fourth regions (A to D) for every 90 degrees, and an inner annular heating passage () and an outer annular heating passage () are formed. A heating medium (F) supplied through a heating medium inlet () flows through heating channels () only once, and then flows out through a heating medium outlet () to an outside.

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Hiroshima, Japan

Osamu Sumida