Injection molding method and device for preparing large-size high-temperature-resistant and high-pressure-resistant expansion coated capsule from ultrahigh-viscosity silicone rubber

Abstract

The invention discloses an injection molding method and device for preparing a large-size high-temperature-resistant and high-pressure-resistant expansion coated capsule from ultrahigh-viscosity silicone rubber. Part of the composite material has a large-size complex internal structure, so that the composite material has difficulties in preparing and demoulding processes, and the problems of uneven mixing, poor storage and the like of the double-component high-viscosity rubber in a rubber injection process are extremely prone to occurring during injection molding. The invention provides the injection molding method and device for preparing the large-size high-temperature-resistant and high-pressure-resistant expansion coated capsule from the ultrahigh-viscosity silicone rubber in order tosolve the problems, and relates to a two-component resin tank, an extrusion device, a vacuum device, a mixer and a mold. A material A and a material B are independently stored in the material storagebox, a vacuum device is connected into the material storage box, the material A and the material B in a ratio of x:y can be extruded into the mixer through an extrusion device during use, the mixed material passes through the mutichannel mixer during injection into the mold, rotating blades are installed in the mixer, and finally the mixed material is injected into the mold. According to the invention, rubber products with certain thickness, temperature resistance, long size and anisotropy can be produced.

Description

technical field [0001] The invention relates to technical fields such as composite materials, two-component injection molding equipment, rubber injection molding, molds, etc., and particularly relates to an injection molding method and device for preparing large-sized high-temperature-resistant and high-pressure-resistant expansion-coated capsules using ultra-high-viscosity silicone rubber. This method will realize the injection and molding of high-viscosity, long-size, and heterosexual silicone rubber, and at the same time solve the problems of storage, proportioning and mixing of two-component materials. The method and device will effectively improve the performance of the product, save manpower, save materials. Background technique [0002] There are many molding processes for composite materials, commonly used are hand lay-up molding, winding molding, compression molding, pultrusion molding, RTM molding, autoclave molding, etc. Among them, the liquid molding process ofte...

AI Technical Summary

Problems solved by technology

[0005] For the existing long-dimension heterogeneous composite materials with complex internal structures, there are difficulties in the preparation and demoulding process, and the two-component high-viscosity rubber is prone to problems such as uneven mixing and poor storage during the injection process.

Images