Production method for constant-section composite-material section material

A production method and technology of composite materials, which can be used in fabrics, textiles, textiles and papermaking, etc., can solve problems such as inability to meet complex load conditions, and achieve the effect of being suitable for large-scale promotion and use, with excellent performance and good bearing capacity.

Inactive Publication Date: 2014-08-20
TIANJIN POLYTECHNIC UNIV
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Problems solved by technology

The production method adopts the combination of three-dimensional weaving technology and continuous resin transfer molding technology to so

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Production method for constant-section composite-material section material
  • Production method for constant-section composite-material section material
  • Production method for constant-section composite-material section material

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[0026] The present invention will be further described below in conjunction with the embodiments and the drawings.

[0027] The production method of a composite material profile with constant cross section designed by the present invention (referred to as the production method, see Figure 1-6 ), the production method uses the following process steps:

[0028] 1) Weaving process: use a large 2.5D three-dimensional loom to arrange the multi-layer warp yarns at equal intervals, and complete the manufacturing of the 2.5D prefabricated fabric online three-dimensional fabric through warping, drawing-in, shedding, weft insertion and beating-up processes; The warp yarn is at least one of carbon fiber, glass fiber, quartz fiber, aramid fiber or basalt fiber;

[0029] 2) Pre-formation process: The 2.5D structure three-dimensional fabric completed by the weaving process is transferred to the pre-formation device through the conveying device, and the pre-formed fabric is continuously shaped by...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

A disclosed production method for a constant-section composite-material section material comprises the following technological steps: 1) weaving, specifically employing a large-size 2.5D stereo weaving machine to finish weaving of 2.5D prefabricated fabric on-line stereo fabric; 2) pre-setting, specifically conveying the stereo fabric to a pre-setting apparatus for continuous setting by employing a conveying apparatus; 3) performing gum dipping, specifically connecting an injection apparatus controllable in pressure and metering and a backflow apparatus with a gum-dipping apparatus, injecting resin into the gum-dipping apparatus with designed pressure and flow velocity, and matching the injected resin amount with the designed pressure, the thickness of the prefabricated fabric and the drawing extrusion speed; 4) performing curing molding, specifically sending the prefabricated fabric subjected to gum dipping to a metal mold, performing curing molding under the effect of an electric heating plate of drawing extrusion equipment, employing a three-zone heating curing technology, and controlling the curing temperature at a scope of 100 DEG C-180 DEG C; and 5) cutting to obtain finished products, specifically utilizing a tracking cutting machine, and cutting according to demanded length to obtain finished products of the composite-material section material.

Description

technical field [0001] The invention relates to a composite material preparation technology, in particular to a production method of a constant-section composite material profile. Background technique [0002] High-performance fiber-reinforced resin-based composite materials are considered to be a new generation of materials after steel, aluminum alloys, and titanium alloys. This type of material has the advantages of structural designability, light weight, high strength, corrosion resistance, and convenient molding. Among the many composite material products, the development and application of equal-section composite material profiles is the most widely used, and has been successfully used in aviation, aerospace, construction, bridge and other engineering fields. [0003] The production technology of high-performance fiber-reinforced equal-section composite profiles mainly includes compression molding technology, autoclave molding technology, pultrusion molding technology a...

Claims

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Application Information

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IPC IPC(8): B29C70/52B29B11/00B29B11/14D03D25/00
CPCB29C70/52B29C70/521D03D25/00
Inventor 吴宁胡晓敏张国利陈光伟王静陈利
Owner TIANJIN POLYTECHNIC UNIV
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