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A cable tray with polyurethane composite material

A composite material and cable tray technology, applied in the field of cable tray, can solve the problems of increasing the cost of processing raw materials for the tray, volatilization of styrene gas, easy occurrence of accidents, etc., so as to reduce the phenomenon of scrapping, reduce the thickness of the shell, and avoid personal injury.

Active Publication Date: 2017-01-18
HANGZHOU TIANYUN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing problems are: 1. Since the unsaturated polyester resin contains the solvent styrene, when the fiber and the resin are thermoset and compounded to form a bridge frame, a large amount of styrene gas will be volatilized during the thermosetting process, which seriously pollutes the environment; 2. 1. In the production process, it is necessary to add curing agent (methyl ethyl ketone), accelerator (butyrate), etc., which increases the cost of raw materials for bridge processing; 3. Styrene, methyl ethyl ketone and butyl ester are all dangerous chemicals. Accidents that cause personal injury

Method used

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  • A cable tray with polyurethane composite material
  • A cable tray with polyurethane composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: with reference to attached figure 1 , 2 . A cable tray with a polyurethane composite material, which is composed of a bridge tank 1 and a cover 2 that are mated and connected; the cross section of the tank 1 is roughly U-shaped; the upper parts of the two side walls 10 of the tank 1 extend inward There is a support plate 11; the tail end of the support plate 11 is bent toward the bottom of the tank body 1 to have a bending part to prevent the screw from damaging the silicon core tube in the tank when the screw reinforces the tank body and the cover body; the support plate 11 and the tank body The side wall 10 of the body 1 forms an L-shape; both sides of the cover body 2 are provided with a convex groove portion 12 and a groove portion 13; the convex groove portion 12 is snap fit with the top of the side wall 10 of the tank body 1; The bottom end of the groove portion 13 is in contact with the top surface of the support plate 11; the shell walls that con...

Embodiment 2

[0012] Embodiment 2: On the basis of Embodiment 1, a cable bridge with polyurethane composite material, in the tank body 1 and the cover body 2, the content of glass fiber yarn 21 and glass fiber mat 20 is 80%, polyurethane 22 The content is 20%; the wall thickness of the tank body 1 and the cover body 2 is 2mm.

[0013] Adopting the above-mentioned arrangement structure of glass fiber filaments and glass fiber mats, and compounding the tank body and cover body under the bonding action of polyurethane, they can not only perfectly cooperate with each other, protect the cables in the tank body, but also reduce the cost of raw materials , which reduces the weight of the product and is more conducive to construction work. At the same time, it also greatly enhances the tensile and bending strength of the product, effectively improves the product quality, and meets the quality requirements of the highway cable tray.

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Abstract

The invention relates to a cable bridge having a polyurethane composite material. The cable bridge is formed by a bridge rack groove body and a cover body, wherein the bridge rack groove body and the cover body are in cooperated connection; and the bridge rack groove body and the cover body are both formed by an upper glass fiber blanket layer, an intermediate layer with glass fiber filaments and a lower glass fiber blanket layer, and a polyurethane material bonding the glass fiber filaments and the glass fiber blanket layers based on the thermosetting moulding process. According to the cable bridge provided by the invention, because the polyurethane is used for replacing an unsaturated polyester resin and the like and is used as a bonding agent, problems of pollution on the environment by volatilization of harmful gas like styrene and the like during the production process in the glass fiber reinforced plastics industry and the personal injury on the operator by the volatilization of harmful gas can be solved and thus the ecological environment can be effectively protected and the potential safety production hazard can be reduced. In addition, the raw material usage is reduced; the enterprise product energy consumption is reduced; and the production cost is lowered. The product weight is substantially reduced, the bridge rack load is reduced, and the service life of the bridge is prolonged indirectly. Meanwhile, the tensile strength and the bending strength of the product are both improved, the scraping phenomenon during the construction process is reduced and the bridge quality and the construction efficiency are effective enhanced.

Description

technical field [0001] The invention relates to a cable bridge frame used on roads or highways, in particular to a cable bridge frame with polyurethane composite material. Background technique [0002] Due to the heavy weight and easy corrosion of metal cable trays, the cable trays used on roads or expressways have been gradually replaced by non-metallic materials, mainly made of unsaturated polyester resin and glass fiber. CN103244753A discloses a composite material sandwich structure cable tray, including a groove unit and a cover unit; the groove unit includes a side plate and a bottom plate, and the side plate and bottom plate structure is a solid shell composed of a composite material surface layer Or a sandwich entity composed of a composite material surface layer and a sandwich material, wherein the composite material is made of fiber and resin, the fiber is made of carbon fiber, glass fiber, etc., and the resin is made of unsaturated polyester or o-phthalic resin. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G3/04B32B17/00B32B27/04B32B27/40
Inventor 魏正治
Owner HANGZHOU TIANYUN TECH