Search International and National Patent Collections

1. (WO2018040553) FOAM MOLDING DIE FOR PLASTIC STRUCTURAL MEMBER AND MOLDING METHOD

Pub. No.:    WO/2018/040553    International Application No.:    PCT/CN2017/078416
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Wed Mar 29 01:59:59 CEST 2017
IPC: B29C 44/58
B29C 44/34
B29C 44/40
B29C 44/60
Applicants: SHENZHEN LEXIN MOLDING CO.,LTD
深圳乐新模塑有限公司
Inventors: LI, Zhoucai
李周才
Title: FOAM MOLDING DIE FOR PLASTIC STRUCTURAL MEMBER AND MOLDING METHOD
Abstract:
A foam molding die for a plastic structural member and a molding method. The foam molding die comprises a product cavity (3), a heating medium channel (5), a cooling channel (4), a temperature-sensing element, and a heating and cooling control device. The heating medium channel (5) and the cooling channel (4) are provided with electronic signal control valves. The heating and cooling control device is separately connected to the temperature-sensing element and the electronic signal control valves. The heating medium channel (4) and the cooling channel (5) can adjust the temperature of the product cavity (3). The molding die and method use quick-acting heating medium channel (5) and cooling channel (4) for control, so that a product surface is glossy without silver streak, and low stress, low density and high quality microcellular foaming is implemented. The manufactured product has high surface hardness, and internal foaming of a material is more uniform.