Title:
UNDERWATER GRANULATING METHOD FOR THERMOPLASTIC RESIN MATERIAL AND UNDERWATER GRANULATING DIE
Document Type and Number:
Japanese Patent JP3035480
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To facilitate the start of operating an underwater granulating apparatus in a method for underwater granulating thermoplastic resin material by a screw type kneading extruder and the apparatus.
SOLUTION: The method for underwater granulating thermoplastic resin material comprises the steps of temporarily stopping a steady operation in a heating state that a kneading extruder supplies a resin material, increasing the heating amount of a die 2 from the state that a cutter 5 is stopped, the die 2 is reduced in the heating amount and the outer surface 2a is covered with cooling water to set the resin material of the softened state in a nozzle 7 to melted state, and starting to drive the extruder upon starting to drive the cutter 5.
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Inventors:
Minoru Yoshida
Hideki Mizuguchi
Nobuhisa Kobayashi
Masaharu Ishida
Hideki Mizuguchi
Nobuhisa Kobayashi
Masaharu Ishida
Application Number:
JP30157295A
Publication Date:
April 24, 2000
Filing Date:
November 20, 1995
Export Citation:
Assignee:
Japan Steel Works, Ltd.
International Classes:
B29B9/06; B29C48/05; B29C48/92; B29C48/04; (IPC1-7): B29B9/06
Domestic Patent References:
| JP5189278A | ||||
| JP1242208A |
Attorney, Agent or Firm:
Soga Doteru (6 people outside)