Pipeline damage repairing sheet

A technology for repairing sheets and pipelines, which is applied in pipeline protection, pipeline anticorrosion/rust protection, pipe components, etc., and can solve problems such as poor corrosion resistance, reduced service life, and surface damage

Inactive Publication Date: 2015-01-14
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 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

Method used

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  • Pipeline damage 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 two layers of polyethylene anticorrosion pipes. The hot melt adhesive layer 2 has airtightness.

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Abstract

The invention discloses a pipeline damage repairing sheet and relates to the technical field of thermal shrinkage anti-corrosion materials designed for anti-corrosion repairing of a welded junction of an embedded or overhead steel pipeline. The pipeline damage repairing sheet is of a laminated structure, wherein the first layer of the pipeline damage repairing sheet is a polyolefin base material layer, a hot melt adhesive layer is arranged on the polyolefin base material layer, the polyolefin base material layer is made from high-density polyolefin subjected to crosslinking radiation, a two-layer polyethylene anti-corrosion pipeline is coated with the polyolefin base material layer, and the hot melt adhesive layer has a sealing property. The pipeline damage repairing sheet is resistant to water, acid, alkali and corrosion, simple in structure and low in 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 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 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 a pipeline repair sheet which is waterproof, acid-proof, alkali-proof, anti-corrosion, simple in structure and low in manufacturing cost. [0004] In order to achieve t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L58/00F16L55/168B32B27/32B32B33/00C08L23/00
CPCF16L58/1063B32B27/08B32B27/32B32B33/00C08L23/00F16L55/1683
Inventor 邢东剑叶启捷
Owner JIANGSU DASHENG HEAT SHRINKABLE MATERIALS
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