Glass fiber reinforced plastic cable bridge and machining method thereof

A cable tray and glass fiber reinforced plastic technology, applied in electrical components and other directions, can solve the problems of cable breakage, harsh working environment, cracking at the bulge, etc., to reduce the cost of raw materials, improve processing stability, and ensure reliability.

Inactive Publication Date: 2019-05-03
张乙顺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, because the ladder-type cable tray is mostly used for the laying of power cables and control cables in the operating sites of large machines such as stackers and reclaimers, belt conveyors, corridor lights, open air, dusty, narrow operating ranges, etc., the working environment is relatively harsh. , if accidentally collided and squeezed, it is easy to cause damage to the main body of the cable tray, which will seriously cause cable damage and cause electric shock accidents. Therefore, the strength requirements of the cable tray in such working conditions are relatively high; In areas with large changes, the material of ordinary pultruded FRP cable trays is prone to problems such as swelling and bulges. With the extension of use time, the bulges are prone to cracking, resulting in a decrease in the strength of the main body of the cable tray and accidents such as collapse.

Method used

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  • Glass fiber reinforced plastic cable bridge and machining method thereof
  • Glass fiber reinforced plastic cable bridge and machining method thereof
  • Glass fiber reinforced plastic cable bridge and machining method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] A processing method for a fiberglass cable tray, comprising the following steps:

[0062] S1: Raw material preparation and preform layout

[0063] First place two layers of 4800Tex alkali-free glass fiber yarn 40 and three layers of continuous mat 30 on the designated position of the creel 3, and thread the yarn from the creel 3 on the designated position of the large yarn board; first place the two layers of 4800Tex non-alkali The alkali-free glass fiber yarn 40 is arranged on the dry and wet glue tank board, and then passed to the designated position of the preformed board according to the area position, and all the alkali-free glass fiber yarn 40 is drawn through the mold cavity in layers, and finally the three-layer continuous mat 30 is guided through the mold cavity, and the E-glass fiber yarn 40 and the continuous mat 30 are stitched together to complete the production preparation;

[0064] S2: batching, melt kneading to obtain a melt mixture,

[0065] The melt ...

Embodiment 2

[0080] The processing method of the FRP cable tray provided in Example 1 is different in that the core layer includes 85% polyethylene terephthalate, 9.2% alkali-resistant glass fiber, 2.3% polytetrafluoroethylene fiber, 2.5% of styrene-butadiene thermoplastic elastomer, 1% of epoxy polymer chain extender, and the percentage is by weight;

[0081] The rest remain unchanged, and the cable tray profile is obtained by providing a processing method according to Example 1.

Embodiment 3

[0083] The processing method of FRP cable bridge as provided in Example 1, the difference is that the core layer includes polyethylene terephthalate 85%, alkali-resistant glass fiber 7.7%, polytetrafluoroethylene fiber 3.8%, 2.5% of styrene-butadiene thermoplastic elastomer, 1% of epoxy polymer chain extender, and the percentage is by weight;

[0084] The rest remain unchanged, and the cable tray profile is obtained by providing a processing method according to Example 1.

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Abstract

The invention belongs to the technical field of electrical equipment power supply and distribution and particularly relates to a glass fiber reinforced plastic cable bridge and a machining method of the glass fiber reinforced plastic cable bridge. The glass fiber reinforced plastic cable bridge comprises a bridge body and a cover plate. The bridge body and the cover plate both comprise core layersand surface layers covering the two sides of the core layers. Each surface layer comprises thermoplastic resin, inorganic particles, a stabilizer and an antistatic agent. Each core layer comprises, by weight percentage, 80-91% of thermoplastic resin, 8-15% of reinforcing fiber, 0.5-3% of toughening agent and 0.5-2% of chain extender. According to the glass fiber reinforced plastic cable bridge, coupling of different functional layers is achieved in a multi-layer structure manner, the raw material compositions of each core layer can be tightly combined with alkali-free glass fiber yarn and continuous felt constituting a glass fiber reinforced plastic cable bridge; in this way, it is ensured that effective support is provided for a cable laid in the cable bridge, the cable bridge has good wear resistance at the same time, and therefore the reliability of the cable bridge in severe environment is ensured.

Description

technical field [0001] The invention belongs to the technical field of power supply and distribution protection for electrical equipment, and in particular relates to a fiberglass cable tray and a processing method thereof. Background technique [0002] The cable tray protects and guides the cables laid inside. Traditional cable trays are mainly divided into trough type, ladder type, tray type and grid type. In the metallurgical industry, especially in the power supply and distribution system of heavy industrial electrical equipment, ladder type cable trays have been widely used. The traditional ladder-type cable tray includes a bridge main body and a cover plate welded to the top of the bridge main body, wherein the bridge main body includes a bottom support and two bridges located on both sides of the bottom support and used for welding with the cover plate The side plate, when it is necessary to lay the cable, the cable is arranged in the main body of the bridge, wherein...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/52C08L67/02C08L27/18C08L53/02C08K7/14C08K13/02C08K3/36H02G3/04
Inventor 张乙顺
Owner 张乙顺
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