Mold pressing and bag pressing integrated forming process for composite chair back

Abstract

The invention relates to a mold pressing and bag pressing integrated forming process for a composite chair back. The mold pressing and bag pressing integrated forming process comprises the following steps that 1, an overall complex structure of the composite chair back is split into a frame and a panel to be manufactured separately; 2, prepreg sheets are laid on the frame, and prepreg sheet flanging is reserved; 3, an air pipe or a silica gel pipe is arranged in the laid frame, and the reserved sheet flanging is used for wrapping the air pipe or the silica gel pipe, so that the frame portion is obtained; 4, a manufacturing process of the panel is carried out, wherein the prepreg sheets are cut according to the size of a drawing; 5, the panel in the step 4 and the flanging portions of the material sheets of the frame with the built-in air pipe or silica gel pipe in the step 3 are lapped and laid to obtain a complete product preform; and 6, a mold pressing and bag pressing process is applied to the pre-finished product in the step 6 to obtain the finished product. The production cost and the material process complexity are reduced; and the overall structural strength of the product can meet the requirements of high impact, high temperature and the like.

Description

technical field [0001] The invention relates to a molding process of molding, bagging and pressing, in particular to a molding process of composite material chair back with simple manufacturing process, stable performance and high strength. Background technique [0002] Composite materials have been widely used in various fields of production and life. Composite materials also have high strength and rigidity, good impact resistance, and good structural designability, which is conducive to the forming of curved surface structures. Composite materials not only maintain the advantages of the material properties of each component, but also can obtain comprehensive properties that cannot be achieved by a single component material through the complementarity and association of each component, and are easy to form. Composite materials can be integrally formed into various complex shapes. Therefore, composite materials are widely used in aerospace, medicine, automobile, textile and ...

AI Technical Summary

Problems solved by technology

[0004] (2) The bonding scheme of products with complex structures and composite materials is complicated, which takes more time and reduces production efficiency for mass-produced products

[0005] (3) For the bonding scheme of products with complex structural composite materials, for products with relatively high flatness requirements, the bonding operation is difficult to meet the flatness requirements

[0006] (4) For the bonding scheme of products with complex structural composite materials, it is difficult for bonding to meet the matching requirements for products with relatively high requirements for bonding components.

[0007] (5) The bonding scheme for products with complex structural composite materials, for products with relatively high air tightness requirements, the bonding part is prone to air leakage, and it is difficult to meet the air tightness requirements

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