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A two-plate mold for pouring molding of multi-layer polymer composite sheet

A technology of casting molding and composite sheet, which is applied in the field of polymer molding, can solve the problems of product performance impact, low production efficiency, complex production process, etc., and achieve the effect of simplifying production process and improving production efficiency

Active Publication Date: 2020-08-25
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the molding of multi-layer polymer composite sheets, the existing molding technology means are mainly to separately mold the multi-layer polymer sheets, and then use the adhesive to process the multi-layer sheets after multiple times. Adhesive compounding, the production process of this molding technology is relatively complicated, the production efficiency is low, and the intermediate adhesive layer may have a certain degree of influence on the performance of the product

Method used

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  • A two-plate mold for pouring molding of multi-layer polymer composite sheet
  • A two-plate mold for pouring molding of multi-layer polymer composite sheet
  • A two-plate mold for pouring molding of multi-layer polymer composite sheet

Examples

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Embodiment Construction

[0013] The best embodiment of the present invention will be described in detail below in conjunction with technical solutions and accompanying drawings.

[0014] This example is used for casting molding of a four-layer polyurethane and polyimide material composite sheet. The specific structure of the four-layer composite sheet includes upper polyurethane, inner polyimide, lower polyurethane and backboard layer polyimide. amine. In order to realize the composite pouring molding of four-layer sheets without using any binder for multiple bonding and compounding, the present invention designs a casting molding method for multi-layer polymer composite sheets. two-plate mold.

[0015] Embodiment steps are as follows:

[0016] Step 1: If figure 1 As shown, before assembling the mold, apply an appropriate amount of release agent to the relevant surfaces of the cavity part. The inner polyimide film is attached to the lower surface of the lower template 2, the lower surface of the u...

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Abstract

The invention provides a two-plate mold for casting molding of a multi-layer polymer composite sheet, and belongs to the technical field of polymer molding. The mold comprises an upper template, a lower template, a rear baffle, bolt fasteners and positioning screws, the upper template and the lower template are connected through the bolt fasteners, the rear baffle is placed at limiting grooves onone sides of the upper template and the lower template for initial positioning, then the rear baffle is positioned by using the positioning screws. The two-plate mold for casting molding of the multi-layer polymer composite sheet has the advantages that the problems that an existing forming technology for the multi-layer polymer composite sheet is relatively complicated in production process, theproduction efficiency is low, and a bonding agent needs to be used for bonding compounding for many times can be solved, under the condition that no bonding agent is used for composite bonding for many times, and the upper surface or the lower surface of the upper template and the upper surface of the lower template of the lower template are combined in different forms, so that composite casting molding of the polymer sheet with up to five layers can be realized.

Description

technical field [0001] The invention belongs to the technical field of polymer molding, and relates to a polymer pouring molding mold, in particular to a two-plate mold for pouring molding of multilayer polymer composite sheets. Background technique [0002] Multi-layer polymer composite sheet is laminated and combined with a variety of films, fabrics or sheets with different functions to form a multi-layer composite material with high strength and high flexibility, and at the same time endows the product with unique properties, such as barrier Gas, anti-aging, microwave absorption, heat preservation, etc. Due to the many excellent properties of the multi-layer polymer composite sheet, it is widely used in fields with special performance requirements such as national defense and civil use. In the molding of multi-layer polymer composite sheets, the existing molding technology means are mainly to separately mold the multi-layer polymer sheets, and then use the adhesive to pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C39/26
CPCB29C39/26
Inventor 姜开宇高文德
Owner DALIAN UNIV OF TECH