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Grid rid forming method

A forming method and grid rib technology, applied in the field of grid rib forming, can solve the problems of fiber accumulation, high points, uneven distribution of demolding fibers, etc.

Active Publication Date: 2020-10-30
HUBEI SANJIANG AEROSPACE GRP HONGYANG ELECTROMECHANICAL
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  • Abstract
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Problems solved by technology

[0004] The present invention provides a method for forming grid ribs, which solves or partially solves the problems caused by fiber accumulation, high points, demoulding, and uneven fiber distribution in the prior art. technical problems of internal defects

Method used

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Embodiment Construction

[0020] see figure 1 , a method for forming grid bars provided by an embodiment of the present invention includes:

[0021] Step 1, prepare winding tooling..

[0022] Step 2, performing wet fiber winding forming of the mesh ribs on the winding tooling.

[0023] Step 3, preloading the formed grid tendons.

[0024] Step 4, curing and molding the pre-pressed grid bars.

[0025] In step 5, the outer composite layer is formed by winding on the surface of the grid tendons.

[0026] Step 6, demoulding the grid bars on the winding tooling to obtain the grid bars.

[0027] Specific embodiments of the present application Due to the preparation of the winding tooling, the wet fiber winding molding of the grid bars is carried out on the winding tooling, the formed grid bars are pre-pressed, and the pre-pressed grid bars are solidified and formed. The surface of the grid ribs is wound to form an outer composite layer, so that the grid ribs are demolded on the winding tooling to obtain ...

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Abstract

The invention discloses a grid rib forming method and belongs to the technical field of fiber winding forming. The grid rib forming method comprises the following steps: preparing a winding tool; performing wet-process fiber winding molding on grid ribs on the winding tool; pre-pressing the formed grid ribs; curing and molding the pre-pressed grid ribs; winding and forming an outer composite layeron the surface of the grid ribs; and demolding the grid ribs on the winding tool to obtain the grid ribs. According to the grid rib forming method, the grid rib fiber winding forming of a complex structure is realized.

Description

technical field [0001] The invention relates to the technical field of fiber winding forming, in particular to a method for forming grid tendons. Background technique [0002] Carbon fiber composite material has the advantages of light weight, high strength, high stiffness, and designability. It is a very good structural material, especially in the fields of aerospace and pressure vessels. More and more products use carbon fiber composite materials instead of metal. Material. In order to further reduce the weight and improve the bearing capacity, the inner layer is often designed with a grid reinforcement structure. [0003] In the prior art, the inner grid ribs of the cylindrical structure and the inner grid ribs of the column segment sealed ball structure are formed by winding fibers. Due to the continuous winding fiber winding molding, there are problems of grid shrinkage and fiber accumulation on the ball sealing surface, especially the serious fiber accumulation at th...

Claims

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Application Information

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IPC IPC(8): B29C70/32B29C70/54B29C33/48
CPCB29C70/32B29C70/54B29C33/485
Inventor 朱君李晗吴玥潇黄永勇沈亚东
Owner HUBEI SANJIANG AEROSPACE GRP HONGYANG ELECTROMECHANICAL
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