Anti-corrosion heat-shrinkable wraparound tape

A technology of wrapping tape and heat shrinking, applied in coatings, pipe components, machinery and equipment, etc., can solve problems such as reduced service life, poor corrosion resistance, and damage to the anti-corrosion layer.

Inactive Publication Date: 2014-09-24
JIANGSU DASHENG HEAT SHRINKABLE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, after a period of use, the anti-corrosion layer of the pipeline will be damaged. In addition, the bending part of the pipeline is not suitable for the fo

Method used

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  • Anti-corrosion heat-shrinkable wraparound tape

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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 heat-shrinkable winding tape of the present invention has a layered structure, the first layer is a polyethylene base material layer 1, and a hot melt adhesive layer 2 and a solid epoxy coating layer 3 are sequentially arranged on the polyethylene base material layer 1. The polyethylene substrate layer 1 is high-density polyethylene that has undergone crosslinking and radiation. The polyethylene substrate layer 1 is coated on the powder epoxy pipe. The hot melt adhesive layer 2 has airtightness.

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Abstract

The invention discloses an anti-corrosion heat-shrinkable wraparound tape and relates to the technical field of heat-shrinkable anti-corrosion materials designed for anti-corrosion patching of welded junctions of buried or overhead steel pipelines. The anti-corrosion heat-shrinkable wraparound tape adopts a layered structure, the first layer is a polyethylene base material layer, a hot melt adhesive layer and a solid epoxy coating are sequentially arranged on the polyethylene base material layer, the polyethylene base material layer is high-density polyethylene after cross-linked radiation, a powder epoxy pipeline is coated with the polyethylene base material layer, and the hot melt adhesive layer has the sealing performance. The anti-corrosion heat-shrinkable wraparound tape is waterproof, acid-proof, alkali-proof, anti-corrosion, simple in structure and low in manufacturing cost.

Description

technical field [0001] The invention relates to the technical field of a heat-shrinkable anti-corrosion tape designed for anti-corrosion repair of welding joints 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 due to the thermal expansion and contraction of steel pipelines, the heat shrinkable tape used as a filling material is required to be able to adapt to its expansion coefficient, no matter It can be completely attached to the outer wall of the steel pipe in any environment. However, after a period of use, the anti-corrosion layer of the pipeline will be damaged. In addition, the bending part of the pipeline is not suitable for the form of a sleeve, so in many occasions it is necessary to use a tape-shaped material for winding. Poor performance, and poor adhesion between layers, reducing the service life. Contents of the invention [0003] ...

Claims

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Application Information

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IPC IPC(8): F16L55/16
CPCF16L58/1063
Inventor 邢东剑叶启捷
Owner JIANGSU DASHENG HEAT SHRINKABLE MATERIALS
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