A composite material extruded sheet and its stacking forming method

Abstract

The invention relates to the technical field of composite material plates, and discloses a composite material extruded plate and a stacking forming method thereof, wherein the composite material extruded plate comprises a plurality of adjacent plates, and among the adjacent plates, one plate faces another plate The surface of the surface is provided with a plurality of strips, the strips are compacted between adjacent plates, and a plurality of strips are arranged along the opposite sides of the plates, a flow cavity is formed between adjacent strips, and the space between adjacent plates is filled There is a curable resin, and the curable resin is impregnated into the strip; the strip can increase the gap between adjacent plates, and solve the problem that the resin is difficult to penetrate into the adjacent plate layers in the prior art. During the process, it plays the role of guiding the resin, which is beneficial for the resin to discharge air bubbles. After the board is formed, a composite material layer is formed on the edge of the board, so that the edge strength of the board is better, and the surface of the board will not be damaged by secondary processing, ensuring the overall performance of the board.

Description

technical field [0001] The invention relates to the technical field of composite boards, more specifically, it relates to a composite material extruded board and a stacking forming method thereof. Background technique [0002] Wind turbines have received increased attention as an environmentally safe and relatively inexpensive alternative energy source. A wind turbine includes a rotor with a plurality of blades. The rotor is mounted to a casing or nacelle positioned atop a truss or tubular tower. Utility grade wind turbines can have large rotors, wind turbines are mounted on towers that are at least 60 meters high, and the blades can be very long. Blades on these rotors convert wind energy into a rotational torque or force that drives one or more generators. [0003] In the prior art several molds are used to manufacture the multiple sheet parts of the blade. The multiple sheet parts are in large resin injected moulds, and the gaps between adjacent sheet parts are injecte...

AI Technical Summary

Problems solved by technology

[0004] However, due to the large area of ​​the plate parts, the surface of the raw material of the plate has a release cloth. When the plate is produced, the release cloth is torn off first. After tearing off, the areas on both sides of the plate are relatively smooth. After stacking, the contact between the plates Tightness, which makes it difficult for resin to be sucked in from the edge during resin infusion, making the gap width between adjacent plate parts prone to uneven distribution

When the width of the gap in the area is smaller than the set width, the resin is not easy to completely fill the gap, so that there will be cavities between the injected plate parts, and the resulting cavities will reduce the structural strength of the wind blade and reduce its service life

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