High-compression-resistance three-dimensional hollow composite floor and manufacturing method thereof

A composite floor and manufacturing method technology, applied in building structure, floor, building, etc., can solve the problems of reduced compressive strength of hollow composite materials, low compressive strength of hollow composite materials, and limited range of fleece densification, etc., to achieve Guaranteed interface strength, enhanced compressive performance, and low production cost

Inactive Publication Date: 2016-05-04
SINOMA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of the pile structure and pile density of hollow fabrics, the compressive strength of hollow composite materials is relatively low. For example, the compressive strength of ordinary 15mm hollow composite materials is only 2.5MPa, and the compressive strength of 18mm hollow composite materials It is only 1.8MPa, and the compressive strength of the 20mm hollow composite material is only 1.2MPa, and the compressive strength of the hollow composite material decreases with the increase of the fabric height
Usually helicopter floors, rail transit floors, etc. require compressive strength ≥ 3MPa, and ordinary hollow composite panels are difficult to meet their high compressive requirements
At present, the method of velvet densification is usually used to improve the overall compression resistance of the 3D hollow composite floor, but the densification of the velvet will bring great difficulties to the preparation process of the hollow fabric, which greatly increases the preparation cost of the 3D hollow composite floor, and The density of velvet is limited, and it is still difficult to meet the requirements of high-performance flooring for 3D hollow composite materials

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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  • High-compression-resistance three-dimensional hollow composite floor and manufacturing method thereof
  • High-compression-resistance three-dimensional hollow composite floor and manufacturing method thereof
  • High-compression-resistance three-dimensional hollow composite floor and manufacturing method thereof

Examples

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Embodiment 1

[0040] This embodiment provides a high-compression 3D hollow composite floor and its manufacturing method. The high-compression 3D hollow composite floor includes a 3D hollow fabric that constitutes the overall frame of the 3D hollow composite floor and is arranged in the void of the 3D hollow fabric pile structure layer. The middle reinforcing rib; the structural size of the middle reinforcing rib is consistent with the structural size of the gap of the 3D hollow fabric fleece structure layer.

[0041] The 3D hollow fabric in this embodiment 1 adopts 18mm thick 3D non-alkali glass fiber hollow fabric, and this 3D non-alkali glass fiber hollow fabric is a prefabricated body of reinforcing material, which is used as the overall frame of the high-pressure-resistant 3D hollow composite floor; the middle reinforcement The rib is made of solid glass fiber composite material; and epoxy resin is used as the matrix material. Among them, the structural effect diagram of 3D alkali-free ...

Embodiment 2

[0056] It is basically the same as in Example 1, except that the reinforcing material prefabricated body is 20 mm 3D carbon fiber hollow fabric, the middle rib material is carbon fiber composite material and the number of ribs is 32.

[0057] The manufacturing method of the high-compression 3D hollow composite floor in Example 2, the steps are as follows:

[0058] 1) The cutting size is length (1m)×width (1m)×height (20) 3D carbon fiber hollow fabric, numbered D, according to the void size of the pile structure layer in the above 3D carbon fiber hollow fabric, prepare length (1m)×width (4mm) × high (20mm) carbon fiber composite middle rib.

[0059] 2) Surface grinding, deburring, and chamfering of the intermediate ribs in step 1, and cleaning them with acetone; pre-embed the surface-treated intermediate ribs in the voids of the 3D carbon fiber hollow fabric fleece structure layer; Among them, the number of middle ribs is 32, and the middle ribs are evenly distributed in the g...

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Abstract

The invention discloses a high-compression-resistance three-dimensional hollow composite floor and a manufacturing method thereof and aims at solving the technical problems that in the prior art which is mentioned in the background technology, a three-dimensional hollow composite floor is low in compressive strength, compression resistance of a composite material is improved to a certain extent by increasing the pile warp density only through structural design of a three-dimensional hollow fabric, but the preparation process of the hollow fabric can be caused difficult by pile warp densification, the pile warp densification range is limited, and the requirements are still hard to satisfy. According to the technical scheme, the high-compression-resistance three-dimensional hollow composite floor comprises a three-dimensional hollow fabric constituting the overall frame of the three-dimensional hollow composite floor and one or more intermediate reinforcing ribs which are arranged in gaps in a pile warp structural layer of the three-dimensional hollow fabric. The high-compression-resistance three-dimensional hollow composite floor has the advantages that the special structure of the floor integrates mechanical performance, in particular to compressive strength, of traditional solid glass fiber reinforced plastic and that of carbon steel, and the weight reduction effect is achieved for a three-dimensional composite board, foam and a honeycomb sandwich composite material.

Description

technical field [0001] The invention relates to a 3D hollow composite floor and a manufacturing method thereof, in particular to the field of 3D hollow composite floors, in particular to a high-pressure-resistant 3D hollow composite floor and a manufacturing method thereof. Background technique [0002] With the global advocacy of energy saving, emission reduction and low-carbon economy, lightweight high-strength flooring has become the current development trend of flooring. With the development of modern technology, the floor structure has been gradually replaced by light-weight and high-strength sandwich flooring from the previous aluminum alloy floor. The sandwich floor mainly includes foam sandwich floor, honeycomb sandwich floor and 3D hollow composite floor. [0003] Patent CN2887694 invented a maglev vehicle compartment composite floor with foam sandwich structure; patent CN102080439A and CN102695602A designed and developed a composite floor with honeycomb sandwich st...

Claims

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04F15/02E04F15/10
CPCE04F15/02E04F15/10E04F15/107
Inventor 张守玉周正亮耿杰王晓文陈同海
Owner SINOMA SCI & TECH
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