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Ultrahigh molecular weight polyethylene abrasion-proof pipe

An ultra-high molecular weight, wear-resistant pipeline technology, applied in the direction of pipes/pipe joints/fittings, pipes, rigid pipes, etc., can solve the problems of inability to meet the transportation of bulk materials, fear of scoring, easy to sag, etc., to achieve increased hardness, Effects of improved high temperature resistance and improved scratch resistance

Inactive Publication Date: 2009-01-14
SHANDONG DIHAO WEAR RESISTING PIPE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary ultra-high molecular weight polyethylene pipes only have good wear resistance to fine mortar, but they are low in hardness, easy to sag, easy to creep, and are afraid of being scratched, so they cannot meet the needs of bulk material transportation. Therefore, they are used in these high-wear projects. still not used

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Ultra-high molecular weight polyethylene resin (relative molecular weight is 1.2 million oxygen units) 87%, glass fiber 7%, graphite 3%, silane coupling agent (KH-550) 1% and polyethylene wax 2%.

Embodiment 2

[0027] Ultra-high molecular weight polyethylene resin (relative molecular weight is 2.5 million oxygen units) 90%, glass microspheres 8.2%, graphite 0.5%, silane coupling agent (KH-550) 0.3% and polyethylene wax 1%.

Embodiment 3

[0029] Ultra-high molecular weight polyethylene resin (relative molecular weight is 3 million oxygen units) 80%, glass microspheres 12%, graphite 2%, silane coupling agent (KH-550) 1% and polyethylene wax 5%.

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Abstract

The invention discloses an ultra-high molecular weight polyethylene wear-resistant pipe which is characterized in that: calculating by quality percentage, the raw materials comprise ultra-high molecular weight polyethylene resin of 70 to 90 percent, glass fiber or glass bead of 3 to 20 percent, silane coupling agent of 0.1 to 1 percent, graphite of 0.5 to 3 percent, and polyethylene wax of 1 to 7 percent. According to the using requirement, the raw materials also comprise needle-shaped wollastonite of 5 to 20 percent. As for different technical requirements, different environmental conditions and different delivery media, the ultra-high molecular weight polyethylene wear-resistant pipe can adjust the compositions so as to obtain desirable results. After the ultra-high molecular weight polyethylene wear-resistant pipe undertakes scientific compatibility and processing, the wear resistance thereof is greatly improved, and the high temperature resistance performance is also enhanced by more than 30 percent; when in trial use in such industries as gold mine, molybdenum mine, electricity and other industries, the effect thereof is significant.

Description

technical field [0001] The invention relates to a polyethylene pipe, in particular to an ultra-high molecular weight polyethylene wear-resistant pipe with ultra-high molecular weight polyethylene resin as the main raw material. Background technique [0002] At present, most of the domestically produced polyethylene plastic pipes are used in gas transmission and water transmission projects in the fields of gas, chemical industry, tap water, power plants, aluminum plants, etc. In the tailings transportation of gold mines, copper mines, molybdenum mines, iron ores and other mines, the slurry transportation of coal mines, the ash transportation of power plants and other projects that have high wear and tear on pipelines, most of them use steel pipes. Ordinary ultra-high molecular weight polyethylene pipes only have good wear resistance to fine mortar, but they are low in hardness, easy to sag, easy to creep, and are afraid of being scratched, so they cannot meet the needs of bul...

Claims

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Application Information

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IPC IPC(8): F16L9/14
Inventor 姜文生
Owner SHANDONG DIHAO WEAR RESISTING PIPE
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