Title:
SIZING DIE FOR EXTRUSION MOLDING EQUIPMENT
Document Type and Number:
Japanese Patent JPH06862
Kind Code:
A
Abstract:
PURPOSE: To produce a synthetic resin tubular body securely having a smooth surface.
CONSTITUTION: A sizing die 2 for extrusion equipment is provided with a cylindrical body 21 through which a synthetic resin tubular body P extruded out of an extruder die 1 is to be passed. On the outer peripheral surface of the cylindrical body 21, a cooling water path 22a is formed in an inlet part thereof and suction slits 21a are formed in the other part. In this sizing die 2, grooves 21c communicating with the suction slits 21a through pores are formed on the inner peripheral surface of the inlet part of the cylindrical bode 21.
Inventors:
NAKAMOTO KEIICHI
IIJIMA MAKOTO
IIJIMA MAKOTO
Application Number:
JP15915792A
Publication Date:
January 11, 1994
Filing Date:
June 18, 1992
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD
International Classes:
B29C48/32; B29C48/90; (IPC1-7): B29C47/20; B29C47/90
Next Patent: HEATER MOUNTING STRUCTURE ON EXTRUDER DIE