Composite material pultrusion carbon plate and continuous preparation method thereof

Abstract

The invention relates to the technical field of composite material pultrusion processes, in particular to a composite material pultrusion carbon plate which comprises a carbon fiber layer and glass fiber yarn layers located on the two sides of the carbon fiber layer. The section of the carbon fiber layer is provided with a long edge and a short edge which are oppositely arranged; an R corner is formed between the adjacent long edge and short edge; and the glass fiber yarn layers sequentially cover the R corner, the short edge and the next adjacent R corner. According to the composite material pultrusion carbon plate provided by the invention, the glass fiber yarn layers are arranged on the two sides of the carbon fiber layer, so that the problem that the edge of a carbon plate product is prone to powder falling and edge missing is effectively solved, the continuous and stable pultrusion process is guaranteed, the product quality is improved, and meanwhile, the service life of a pultrusion mold is prolonged; carbon fibers with a certain proportion can be replaced through the glass fiber yarn layers, so that the raw material cost is effectively reduced; and by arranging the glass fiber yarn layers on the two sides, abrasion at a hot mold inlet can be reduced, and the service life of the hot mold is prolonged.

Description

technical field [0001] The invention relates to the technical field of composite material pultrusion forming technology, in particular to a composite material pultrusion carbon plate and a continuous preparation method thereof. Background technique [0002] The traditional pultrusion carbon plate is made of carbon fiber yarn unwinding and infiltrated with thermosetting epoxy resin or vinyl resin, then squeezes out excess resin glue and air bubbles through a set of preforming tools, and enters the metal heating mold for curing and molding. Mechanical properties of the sheet. Carbon fiber is brittle, has poor wear resistance, and is covered with more resin glue. When the carbon plate made of carbon fiber enters the heating mold during the pultrusion process, there is a large stress at the R angle of the mold entrance, resulting in It is easy to wear and collapse, resulting in mold blocking, so that the pultrusion production process fails, and production continuity is difficul...

AI Technical Summary

Problems solved by technology

Carbon fiber is brittle, has poor wear resistance, and is covered with more resin glue. When the carbon plate made of carbon fiber enters the heating mold during the pultrusion process, there is a large stress at the R angle of the mold entrance, resulting in It is easy to wear and collapse, resulting in mold blocking, so that the pultrusion production process fails, and production continuity is difficult to guarantee

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