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Integrated forming manufacturing method of I-shaped beam made from composite material

A composite material, integral molding technology, applied in the field of composite materials, can solve the problems of low connection strength, reinforced composite material I-beam, material damage, etc., and achieve the effect of improving the overall strength

Inactive Publication Date: 2014-01-22
CHONGQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an integral molding manufacturing method of a composite I-beam, which can overcome the material damage caused by the punching connection of the existing split structure composite I-beam and the damage caused by the adhesive connection. The defects such as low connection strength between the flange and the web caused by it can enhance the strength of the composite I-beam

Method used

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  • Integrated forming manufacturing method of I-shaped beam made from composite material

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0022] The present invention comprises the following steps:

[0023] Step 1, the preparation of mold

[0024] Such as figure 1 As shown, the mold is composed of 4 mold plates, which are upper mold plate 1, lower mold plate 2, left mold plate 3 and right mold plate 4;

[0025] Step 2. Fiber cloth cutting, dipping and lamination

[0026] Composite material fiber cloth is cut in two sizes, one size specification is the fiber cloth of the wing plate, and the other size specification is the fiber cloth of the web plate; after the cut fiber cloth is fully dipped in resin, according to the composite material I In the beam loading direction, the fiber cloth is laminated to obtain 4 fiber cloth laminates dipped in resin and in a wet state;

[0027] Step 3, the fiber cloth stack is placed in the mold

[0028] Such as figure 1 As shown, after applying the release ...

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Abstract

The invention discloses an integrated forming manufacturing method of an I-shaped beam made from a composite material. The method comprises the following steps: I, preparing a die; II, clipping, impregnating and overlaying fiber cloth; III, laminating the fiber cloth in the die; IV, hot-pressing and curing the laminated fiber cloth through a hot-press and the die; and V, opening the die. The method provided by the invention has the following advantages that material damage caused by punching connection and low connecting strength between a flange and a web caused by gluing connection are overcome when the flange and the web of the split type I-shaped beam made from the composite material obtained by existing manufacturing method are combined and connected, and the integral strength of the I-shaped beam made from the composite material is improved.

Description

technical field [0001] The invention belongs to the field of composite materials, and in particular relates to a method for integrally forming an I-beam made of composite materials. Background technique [0002] At present, the manufacturing method of composite I-beams is to first prepare the upper and lower plate surfaces (called wing plates) and the middle plate surface (called web plate) respectively by means of flat plate molding, and then through bolts or glued In the method of glue connection, the wing plate and the web plate are combined and connected to each other to obtain a composite material I-beam. Since the flange and the web of this I-beam are prepared separately and then connected together, the flange and the web belong to a split structure in terms of structural form, not an integral structure. [0003] The main problem of connecting the flange and web of composite I-beams by bolts is: this connection method must punch holes in the flange and web of composit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34
CPCB29C70/345
Inventor 陈斌尹大刚刘玉玺张智凌
Owner CHONGQING UNIV
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