LFT-D in-mold laminating process of building template

Abstract

The invention relates to the technical field of building template manufacturing, and particularly discloses an LFT-D in-mold coating process of a building template. The process comprises the followingsteps: adding polypropylene and glass fibers as raw materials into an extrusion device, and extruding the obtained mixture; putting a mirror surface sheet into an oven, and heating for softening; mounting a mold in a frame type press, putting the mixture into a mold cavity, and covering the baked softened mirror surface sheet above the mixture in the mold cavity; and driving the mold through theframe type press to perform compression molding after the mold is closed. The laminating process is simple in steps; the forming effect is good; the polypropylene and the glass fibers are used as rawmaterials, the mixture is extruded through an LFT-D technology, then the mirror surface material is dried to be soft and then enters the press together with the mixture, and the mirror surface-coveredbuilding template is formed through compression molding, so the mirror surface-covered building template has the advantages of being resistant to abrasion, capable of prolonging the service life, easy to demold and the like, the construction efficiency is improved, and the building cost is reduced.

Description

technical field [0001] The invention relates to the technical field of building formwork manufacturing, in particular to an LFT-D in-mold coating process of building formwork. Background technique [0002] LFT is the abbreviation of Long-Fiber Reinforce Thermoplastic in English, and it is translated into Chinese as long fiber reinforced thermoplastic or customarily called long fiber reinforced thermoplastic composite material. The LFT-D process mainly solves the problem of the glass fiber length of the composite material template and the manufacturing problem of semi-finished products, while enhancing the mechanical properties of the composite material template, it greatly reduces the production cost. In the prior art, the LFT-D process is often used to make building formwork, but the surface of the building formwork is covered with a secondary molding process, that is, the building formwork is made and then covered with a film. This process will cause poor molding and overl...

AI Technical Summary

Problems solved by technology

In the prior art, the LFT-D process is often used to make building formwork, but the surface of the building formwork is covered with a secondary molding process, that is, the building formwork is made and then covered with a film. This process will cause poor molding and overlay The film is not glued in place or there are air bubbles between the two, so we need to design a one-time molding process to make the building formwork and the film one-time molding