Manufacturing method of fiber strengthened sheet material

Abstract

The invention relates to a manufacturing method of fiber strengthened sheet material. The manufacturing method comprises the following steps: firstly preparing a plurality of fiber strengthened layers and a pair of mould plates, wherein each mould plate is provided with a hazy pressing face; then soaking resin on the fiber strengthened layers, and overlapping the fiber strengthened layers subjected to resin soaking to form a blank material along a thickness direction; then carrying out hot-pressing on the blank material by machining a hot-pressing device to be matched with the mould plates so as to obtain a fiber strengthened sheet material, wherein the average roughness of the surface of the fiber strengthened sheet material is between 0.007 microns and 50 microns. Therefore, stable anchoring of the fiber strengthened sheet material and another injection piece is guaranteed, and the bonding strength of products is improved.

Description

technical field [0001] The invention relates to a board, in particular to a method for manufacturing a fiber-reinforced board. Background technique [0002] Existing information products, electrical products, or vehicle panel parts, etc., generally use casings made of plasticized materials. Will be made of fibre-reinforced panels. [0003] As far as the method of making fiber-reinforced boards is concerned, the Taiwan patent case No. I388422 discloses that a fiber material is impregnated with a thermoplastic resin to form an impregnated gelled film, and this impregnated gelled film will become a typical Fiber-reinforced sheet, for subsequent applications, two release films can be covered on both sides of the impregnated gelled film, followed by cutting, heating and pressure curing, and heating and pressing into the mold to form a film bulb. Then put the thin film bulb into an injection mold and carry out the injection operation, so that an injection part can be bonded with...

AI Technical Summary

Problems solved by technology

The surface of this fiber-reinforced plate is not provided with anchoring parts for the injection parts, so that the combination effect of the film bulb and the injection parts is not good.

[0004] China Taiwan Patent Case No. M362111 discloses that a reinforced fiber laminate composed of a plurality of reinforced fiber layers, each reinforced fiber layer is impregnated with a thermoplastic resin in a continuous fiber cloth, and the surface of this reinforced fiber laminate is smooth , if it is to be combined with other plates, it may cause poor combination

[0005] Another example is the patent case of China Taiwan Certificate No. I353303. A fiber reinforced material is adhered to both sides of a core material to form a sandwich structure, and then the sandwich structure is used to form a first component, which is injected externally. The forming method forms a second component outside the first component, but the surface of the first component is smooth, and it is still difficult to produce a firm combination with the second component

[0006] Another example is the Chinese Taiwan Certificate No. I376396 patent case, an insulating resin layer is respectively arranged on both sides of a fiber cloth, and after hot pressing, the insulating resin layer is melted and combined with the fiber cloth to obtain a fiber cloth with The prepreg of the carrier, the patent does not disclose that the surface of the insulating resin layer is rough, which is not conducive to the combination of subsequent printed circuit boards

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