CS212432B1 - Method of manufacturing an insulating component - Google Patents

Abstract

The invention relates to the production of insulating parts, in particular walls of refrigerated trucks, etc. The insulating part according to the invention is produced from an insulating core made of lightweight material and a braid made of reinforced plastic material. The essence of the method according to the invention consists in that the insulating core, provided with inserts and wrapped with a layer of reinforcing material, is placed in a mold and the surface layer of the reinforcing material is saturated with a binder under pressure, and

Description

The invention relates to a process for the production of an insulating component which, having good thermal insulation properties, has a high strength and wherein the surface layer is perfectly interconnected with the core of the component.

At present, the insulating panels are produced in such a way that the outer layers are inserted into the mold and the space between them is foamed. The disadvantage of the insulating panels produced in this way is that the connection of the layers is not strong enough and the production is laborious.

These drawbacks are overcome by the method of manufacturing the insulating element, which consists in that the insulating element consisting of a pre-formed heat insulating core, optionally provided with inserts, is wrapped with a layer of reinforcing material, which is filled with a binder after injection into the mold. wherein the binder from the sheath penetrates into the cell gaps of the insulating core.

Through the passage of the binder from the sheath to the surface layers of the insulating core into the cell gaps, a high strength of the insulating component with a low overall heat transfer coefficient is achieved and high production productivity at low investment costs is achieved in production.

The components may have different shapes and characteristics. This can be a slab, a closed sandwich panel or a beam profile. The foamed plastic may be rigid expanded polyurethane foam, rigid expanded integral polyurethane foam, expanded PVC, foam glass and the like.

The reinforcing material may be glass fiber, fabric, chopped fiber mats, filament mats, but also carbon, metal and other fibers, depending on the purpose of use. The binder is a polyester resin, an epoxy resin, and other materials that are well bonded to each other with reinforcing fibers and foamed cores.

Various technical elements may be foamed into the foamed core, such as threaded studs, metal strips for strength and structural bonding. E.g. for fixing fittings needed for door panels, etc.

The surface layer of fiber reinforcement does not have to be on the whole surface of the structural dilee.

The production method of these components according to the invention is as follows. In the mold, the foam core is first formed, wrapped with a reinforcing material, inserted into the mold, and the reinforcing material is impregnated with a binder injection technology on the core surface.

This results in a perfect bonding of the surface layer with the foamed core, as the binder penetrates into the adjacent pores of the foamed barley. These panels have thermal insulation according to their core and high strength according to the composition of the surface layer, as well as corrosion resistance.

Insulating components are proven in stationary cold stores, fruit and vegetable stores and wherever there is a requirement for solid components with good thermal insulation.

Claims (1)

Method for manufacturing an insulating component consisting of a lightweight insulating core and a reinforced plastic sheath, characterized in that the insulating core, provided with inserts and coated with a layer of reinforcing material, is inserted into the mold and the surface layer of reinforcing material is overcoated with injection technology .