A prepreg layered high pressure preforming process

Abstract

The invention provides a prepreg laminating high-pressure pre-forming process. The prepreg laminating high-pressure pre-forming process comprises the following steps that S1, a single layer of prepregis laid on each of two stations; S2, one of the stations is driven into a pre-forming cavity, an electromagnet is powered off, and the station and a corresponding frame body are separated; S3, the corresponding frame body is jacked by a lifting device, and is tightly pressed against the bottom end of a vacuum adsorption device, the vacuum adsorption device performs vacuumizing, elastic rubber deforms to be attached to a mold, meanwhile, the corresponding single layer of prepreg is also pressed on the mold, and the pressure is maintained for a period of time; S4, the lifting device is reset, the other station is driven into the pre-forming cavity, the step S3 is repeated, and at the moment, the station in the step S2 undergoes prepreg laying synchronously; S5, the steps S2 to S4 are repeated; and S6, laying is finished. Compared with the prior art, the prepreg laminating high-pressure pre-forming process has the advantages that the laying precision is high, the laying efficiency is high, in the case of the finally obtained product, the quality is good, the porosity is small, carbon fiber is free of wrinkles, and bubbles are not prone to being generated between the layer and the layer.

Description

technical field [0001] The invention relates to the technical field of carbon fiber product molding, in particular to a prepreg laminated high-pressure preforming process. Background technique [0002] Carbon fiber products are products made of carbon fiber composite materials made of carbon fiber and resin, metal, ceramics and other materials. Carbon fiber products are widely used in aerospace, military, electronics and many other fields, such as figure 2 As mentioned above, the carbon fiber prepreg contains multiple layers. In the production process, the traditional method is to lay multiple layers of carbon fiber prepreg together and form them by heating and compression molding. However, in the actual operation process, due to the large number of layers, the layers and Insufficient sliding between layers can easily cause wrinkles and laps, increasing the failure rate of products. [0003] In view of the above-mentioned defects, the inventor actively researches and innova...

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Problems solved by technology

[0004] In view of this, the present invention proposes a prepreg laminated high-pressure preforming process, which aims to solve the problem in the prior art that when multi-layer carbon fiber prepreg is compression molded, the slippage between layers is insufficient, which easily causes wrinkles and Overlapping, a technical problem that increases the product failure rate

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