Title:
COMPOSITE MATERIAL INJECTION MOLDING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/050576
Kind Code:
A1
Abstract:
A composite material injection molding method, comprising: preheating a first material matrix (5); obtaining an injection parameter, and according to the injection parameter, synchronously injecting a second material into a composite surface (3) and a non-composite surface (4) of the first material matrix (5), so that the second material is compounded with the first material matrix (5) to form a pre-injection molded member; performing annealing treatment on the pre-injection molded member; and removing the second material on the non-composite surface (4) of the pre-injection molded member after the annealing treatment to obtain a composite injection molded member. According to the method, the injection parameter is set, and the second material is simultaneously injected into the composite surface (3) and the non-composite surface (4) at the inner and outer sides of the first material matrix (5) according to the injection parameter, so that the pressure borne by the two sides of the first material matrix (5) from the second material is always kept balanced, thereby ensuring that the first material matrix (5) does not crack during injection molding.
Inventors:
LI WENTAO (CN)
LI ZHONGJUN (CN)
CUI JIGUO (CN)
MAO YONGFA (CN)
MAO GUIJIANG (CN)
LI YANG (CN)
FAN KAI (CN)
LI ZHONGJUN (CN)
CUI JIGUO (CN)
MAO YONGFA (CN)
MAO GUIJIANG (CN)
LI YANG (CN)
FAN KAI (CN)
Application Number:
PCT/CN2021/137000
Publication Date:
April 06, 2023
Filing Date:
December 10, 2021
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
B29C45/14; B29B13/02; B29C45/16; B29C45/17; B29C45/27; B29C45/72; B29C45/77; B29C71/02
Domestic Patent References:
| WO2008134505A2 | 2008-11-06 |
Foreign References:
| CN111844609A | 2020-10-30 | |||
| CN107177855A | 2017-09-19 | |||
| CN110587915A | 2019-12-20 | |||
| CN108202440A | 2018-06-26 | |||
| CN107650326A | 2018-02-02 | |||
| CN107685418A | 2018-02-13 | |||
| EP3609166A1 | 2020-02-12 |
Download PDF: