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1. (WO2018035885) METHOD AND DEVICE FOR ENHANCING PEEL STRENGTH OF EXTRUDED COMPOUND

Pub. No.:    WO/2018/035885    International Application No.:    PCT/CN2016/097810
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Fri Sep 02 01:59:59 CEST 2016
IPC: B29C 47/88
B32B 37/10
B29L 9/00
Applicants: HUILONG PLASTICS MACHINERY CO., LTD.
江门市辉隆塑料机械有限公司
Inventors: XU, Jincai
许锦才
Title: METHOD AND DEVICE FOR ENHANCING PEEL STRENGTH OF EXTRUDED COMPOUND
Abstract:
A method for enhancing a peel strength of an extruded compound comprises: after leaving a die lip, a coating layer (1) extruded from a die (2) of an extruder entering an oxidization region arranged between the die lip and a lamination region, a heating and temperature-maintaining operation being performed on the coating layer (1) when the coating layer (1) passes through the lamination region; and the coating layer entering the lamination region to compound with a substrate (9) after being completely oxidized in the oxidization region. A device for enhancing a peel strength of an extruded compound comprises an oxidization region and a lamination region through which a coating layer (1) extruded from a die lip of a die (2) of an extruder sequentially passes. A heating and temperature-maintaining device (3) is provided at the oxidization region on a motion path of the coating layer (1). In the invention, the heating and temperature-maintaining device is provided at the oxidization region between the die lip from which the coating layer is extruded and the lamination region, such that the coating layer in the oxidization region maintains an appropriate temperature at which oxidation thereof is complete, thereby enhancing a peel strength of an extruded compound, and preventing producing defective products having a skipped compound point and discoloration problems.