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Polymer supercritical mould pressing foaming mould

A foaming mold and polymer technology, applied in the field of polymer supercritical molding foaming mold, can solve the problems of long production cycle, achieve the effects of preventing polymer backflow, shortening production cycle, and improving injection and dissolution time

Inactive Publication Date: 2013-10-16
ZHEJIANG HAIHONG HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the novelty of polymer supercritical foaming technology, there are few manufacturers at home and abroad, and the related foaming technology only refers to injecting supercritical fluid into a closed container and dissolving it into the polymer to foam. Generally, the dissolution time is more than 70 minutes. , long production cycle

Method used

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  • Polymer supercritical mould pressing foaming mould
  • Polymer supercritical mould pressing foaming mould
  • Polymer supercritical mould pressing foaming mould

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Embodiment Construction

[0012] The present invention will be described in detail below in conjunction with accompanying drawing: Figures 1 to 3 As shown, the present invention mainly includes an upper mold 1 and a lower mold 2. The temperature of the mold can be controlled within 50-300°C. The molding machine is driven to move up and down, so as to open the mold and lock it. A mold cavity 6 for placing polymers is provided between the upper mold 1 and the lower mold 2; a several-shaped oil passage 3 is arranged in the upper mold 1 and the lower mold 2. In the described mold cavity 6, a plurality of supercritical fluid injection ports 4 are provided on the upper, lower, front, rear, left, and right sides. Metal sintered filter block 5. The mold can be a one-layer or multi-layer structure, capable of producing multiple products at one time.

[0013] The working principle of the present invention is as follows: during production, the heat conduction oil at a temperature of 50-500 degrees is firstly ...

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Abstract

The invention relates to a polymer supercritical mould pressing foaming mould which mainly comprises an upper mould and a lower mould, wherein the temperature of the mould can be controlled to be within 50-300 DEG C; the upper mould and the lower mould are integrally connected through a guide column and guide sleeve positioning system; a mould cavity used for containing polymers is formed between the upper mould and the lower mould; an n-shaped oil path is arranged in the upper mould and the lower mould; a plurality of supercritical fluid filling holes are formed in upper, lower, front, back, left and right surfaces in the mould cavity; and metal sintering filtering blocks for preventing the polymers from flowing into the supercritical fluid filling holes are arranged at the supercritical fluid filling holes. The mould can have one or more layers; a plurality of moulds can be used once; the production efficiency is improved; and the mould has the characteristics of temperature control, multi-point filling and prevention of polymer backflow.

Description

technical field [0001] The invention relates to the field of foaming molds, and mainly relates to a foaming mold for polymer supercritical molding. Background technique [0002] Due to the novelty of polymer supercritical foaming technology, there are few manufacturers at home and abroad, and the related foaming technology only refers to injecting supercritical fluid into a closed container and dissolving it into the polymer to foam. Generally, the dissolution time is more than 70 minutes. , long production cycle. [0003] There are very few special molds for polymer supercritical foam molding at home and abroad. In order to solve the problem of polymer supercritical foam molding, our company has conducted a large number of research experiments and invented this mold. Contents of the invention [0004] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a polymer supercritical molding foam mold that solves practical productio...

Claims

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Application Information

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IPC IPC(8): B29C44/58B29C44/42
Inventor 陈海贤徐朝晖魏増
Owner ZHEJIANG HAIHONG HLDG
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