Anticorrosive pipeline repairing sheet

A technology for repairing sheets and pipes, applied in the direction of coating, etc., which can solve problems such as poor adhesion, damage to the anti-corrosion layer, and surface damage

Inactive Publication Date: 2010-02-03
JIANGSU DASHENG HEAT SHRINKABLE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The welding joints of buried or overhead steel pipelines currently used need anti-corrosion treatment, but it is easy to cause surface damage during transportation, inspection or construction, especially after a period of use, the anti-corrosion layer of

Method used

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  • Anticorrosive pipeline repairing sheet

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Embodiment Construction

[0010] The technical scheme of the present invention is described in detail below in conjunction with accompanying drawing:

[0011] Such as figure 1 As shown, the pipeline repair sheet of the present invention has a layered structure, the first layer is a polyolefin substrate layer 1, and a hot melt adhesive layer 2 is arranged on the polyolefin substrate layer 1. The polyolefin substrate layer 1 is a high-density polyolefin subjected to cross-linking radiation. The polyolefin substrate layer 1 is coated on the three-layer polyethylene anticorrosion pipeline. The hot melt adhesive layer 2 has airtightness.

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Abstract

The invention relates to an anticorrosive pipeline repairing sheet, relating to the technical field of heat shrinkage anti-corrosive materials designed for crafter anticorrosion joint coating of a buried or overhead steel pipeline. The anticorrosive pipeline repairing sheet is characterized in that the pipeline repairing sheet has a layered structure, the first layer is a polyolefin substrate layer, and a hot-melt adhesive layer is arranged on the polyolefin substrate layer; the polyolefin substrate layer is made from high-density polyolefin treated by cross linking radiation; the polyolefin substrate layer is coated on a three-layered polyethylene anticorrosive pipeline; the hot-melt adhesive layer has the seal property. The invention aims to provide an anticorrosive pipeline repairing sheet having the advantages of water proofing, acid proofing, alkali proofing, corrosion resistance, simple structure and low manufacturing cost.

Description

technical field [0001] The invention relates to the technical field of a repair sheet designed for repairing damage to an anticorrosion layer of buried or overhead steel pipelines. Background technique [0002] The weld joints of buried or overhead steel pipelines currently used need anti-corrosion treatment, but it is easy to cause surface damage during transportation, inspection or construction, especially after a period of use, the anti-corrosion layer of the pipeline will be damaged , At this time, materials with simple structure, convenient use, and timely filling and repair are required. The currently used repair sheet has poor corrosion resistance and poor adhesion between layers, which reduces the service life. Contents of the invention [0003] The object of the present invention is to provide an anti-corrosion pipeline repair sheet which is waterproof, acid-proof, alkali-proof, anti-corrosion, simple in structure and low in manufacturing cost. [0004] In order...

Claims

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Application Information

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IPC IPC(8): F16L58/10
Inventor 邢东剑叶启捷
Owner JIANGSU DASHENG HEAT SHRINKABLE MATERIALS
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