Compound glass steel tube and its preparing method

A glass steel pipe, layer composite technology, applied in the direction of pipes, rigid pipes, pipeline protection, etc., to achieve the effects of increased axial tensile strength, good heat resistance, and good heat resistance

Inactive Publication Date: 2014-12-17
河北华强科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a composite FRP pipe with high temperature resistance, aging resistance, flame retardancy, especially good strength and toughness, so as to overcome the problems of existing FRP pipes during engineering installation and long-term use

Method used

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  • Compound glass steel tube and its preparing method
  • Compound glass steel tube and its preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 , the present invention is the lining layer 1, the toughening layer 2, the reinforcement layer 3 and the protection layer 4 from the inside to the outside, and each layer is a composite structure formed by different reinforcing materials and slurries:

[0037] a) Make the lining layer on the pipe body mold:

[0038] Weigh 100kg of E51 epoxy resin, 30kg of acetone, and 7kg of methyl ethyl ketone peroxide (No. 5 curing agent), fully stir and mix, and make a lining slurry for later use;

[0039] Brush a layer of 0.1mm thick inner lining slurry on the pipe body mold coated with mold release agent, wind a layer of polyester cloth with a mesh grid with a thickness of δ=0.1mm and a width of 20-30cm, repeat this The steps are operated 3 times to make a 0.6mm thick lining layer.

[0040] b) Make a toughening layer on the surface of the inner liner:

[0041] Add 4kg of methyl ethyl ketone peroxide into 100kg of 189# unsaturated polyester resin and stir, and af...

Embodiment 2

[0053] a) Make the lining layer on the pipe body mold:

[0054] Weigh 100kg of E44 epoxy resin, 50kg of acetone, and 8kg of dibenzoyl peroxide curing agent, fully stir and mix, and make a lining slurry for subsequent use;

[0055] Brush a layer of 0.2mm thick inner lining slurry on the pipe body mold coated with mold release agent, wind a layer of polyester cloth with a mesh grid with a thickness of δ=0.13mm and a width of 20-30cm, repeat this The steps are operated twice to make a 0.66mm thick lining layer.

[0056] b) Make a toughening layer on the surface of the inner liner:

[0057] The dibenzoyl peroxide of 3kg is added in the 189# unsaturated polyester resin of 100kg and stirs, and after the reaction is stable, add the diethylaniline promotor of 2kg, fully stir and mix, make toughening slurry for subsequent use;

[0058] Coat a layer of polyurethane adhesive with a thickness of 0.1mm on the surface of the inner lining layer;

[0059] Brush a layer of toughening slurry...

Embodiment 3

[0069] a) Make the lining layer on the pipe body mold:

[0070] Weigh 100kg of E51 epoxy resin, 35kg of acetone, and 7.2kg of cyclohexanone peroxide curing agent, fully stir and mix, and make a lining slurry for subsequent use;

[0071] Brush a layer of 0.5mm thick inner lining slurry on the pipe body mold coated with mold release agent, wind a layer of polyester cloth with a mesh grid with a thickness of δ=0.15mm and a width of 20-30cm, repeat this The step is operated 3 times to make a 1.95mm thick lining layer.

[0072] b) Make a toughening layer on the surface of the inner liner:

[0073] Add 2kg of methyl ethyl ketone peroxide into 100kg of 189# unsaturated polyester resin and stir, add 2kg of diethylaniline accelerator after the reaction is stable, fully stir and mix, and make a toughening slurry for subsequent use;

[0074] Coat a layer of polyurethane adhesive with a thickness of 0.1mm on the surface of the inner lining layer;

[0075] Brush a layer of toughening sl...

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Abstract

The invention discloses a compound glass steel tube. The tube wall of the compound glass steel tube is a four-layer compound structure comprising a lining layer, a toughening layer, a strengthening layer and a protecting layer sequentially from inside to outside. The lining layer is 0.6-2mm in thickness, the toughening layer is 0.6-2mm in thickness, the strengthening layer is 4-6mm in thickness, and the protecting layer is 0.6-2mm in thickness. The compound glass steel tube has the advantages of light weight: the average specific gravity of the compound glass steel tube is 30% lighter than that of normal glass fiber reinforced plastic; high strength: annular tensile strength and axial tensile strength of the compound glass steel tube are improved greatly and elasticity modulus is increased by 60%; good heat resistance: the axial heat expansion coefficient of the compound glass steel tube is 10x10<-6> / DEG C.

Description

technical field [0001] The invention relates to a glass steel pipe, in particular to a composite glass steel pipe. Background technique [0002] Plexiglass steel pipes are widely used in petroleum, electric power, chemical industry, papermaking city water supply and drainage, factory sewage treatment, seawater desalination, gas transportation and other industries. Compared with other pipes, plexiglass steel pipes have corrosion resistance and smooth surface , low transportation energy consumption, long service life, convenient transportation and installation, no maintenance and low overall cost and many other advantages. Its structure is generally made of resin as the matrix material, glass fiber and its products as the reinforcing material, and quartz sand as the filling material. The pipeline of this structure has exposed many shortcomings and deficiencies in the long-term use and engineering installation process: 1. The elastic modulus and rigidity are poor, especially f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L9/14F16L57/04
Inventor 王洪君徐文秀王帅张文宁王超夏云广
Owner 河北华强科技开发有限公司
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