Device and method for forming variable cross-section thin-wall conical carbon fiber perform

Abstract

The invention discloses a device and a method for forming variable cross-section thin-wall conical carbon fiber perform and aims at solving the technical problem of a complex method for forming a variable cross-section thin-wall conical carbon fiber perform by using a current carbon fiber perform forming device. Due to the design of a winding die and design philosophies of paving along with the die, winding and shaping, locating a core die, sewing locally, weaving and reinforcing, the forming device is capable of low-cost continuous preparation of a carbon fiber reinforced composite conical variable cross-section thin-wall part perform body; the method is simple; according to the forming method, four processes of paving, winding, sewing and weaving the fiber are continuously performed on the same device, so that the forming difficulty of the variable cross-section thin-wall conical carbon fiber perform is prominently reduced; in the preparation process, process parameters with influence on reinforced body forming quality and the wall thickness of the perform can be controlled in real time. Compared with the background art, no special expensive equipment is needed in the method; the method is capable of forming freely according to the shape of the needed perform.

Description

technical field [0001] The invention relates to a carbon fiber preform forming device, in particular to a tapered carbon fiber preform forming device with variable cross-section and thin wall. It also relates to a method for forming a tapered carbon fiber preform with variable cross-section and thin wall using the device. Background technique [0002] Carbon fiber reinforced composite materials have the advantages of high specific strength and specific modulus, good fatigue resistance, low thermal expansion coefficient, and good damage safety performance. They have become a strong competitor in lightweight and high-performance structural materials. Electronics and other fields have broad application prospects. The preparation process and method of carbon fiber preforms largely determine the overall performance of composite materials. With the expansion of the application range of carbon fiber reinforced composite materials, it is difficult to form preforms with variable cro...

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Problems solved by technology

[0006] In order to overcome the disadvantages of the existing carbon fiber preform forming device in the complex method of forming variable cross-section thin-walled conical carbon fiber preform, the present invention provides a variable cross-section thin-wall conical carbon fiber preform forming device

The forming method of the present invention effectively solves the problems of loose bonding between fabric layers, loose fiber reinforcement and low product volume fraction when directly laying layers through the winding tension in the winding process; Good stability, experience has proved that this method has excellent mechanical properties of tapered variable cross-section thin-walled prefabricated composite materials

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