Anticorrosive heat shrink sleeve for mouth-repairing for welding engineering pipeline

A heat shrinking and welding technology, used in pipeline anti-corrosion/anti-rust protection, pipeline protection, pipeline connection layout, etc., can solve the problems of low degree of mechanization, many factors of product quality, large internal stress of products, etc., and achieve high degree of mechanization , The quality is easy to control, and the internal stress of the product is small.

Inactive Publication Date: 2005-09-07
四川久远科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, it is difficult to produce heat shrinkable sleeves with a large diameter, and the production efficiency is low, the process is cumbersome, the yield rate is low, the degree of mechanization is low, there are many factors that affect the quality of the product, the quality is not easy to control, the internal stress of the product is large, and it is resistant to cracking. poor sex

Method used

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  • Anticorrosive heat shrink sleeve for mouth-repairing for welding engineering pipeline
  • Anticorrosive heat shrink sleeve for mouth-repairing for welding engineering pipeline

Examples

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Embodiment Construction

[0015] See each top view. An anti-corrosion heat-shrinkable sleeve for welding engineering pipelines, which is composed of an outer layer 1 of a base material and an inner layer 2 of hot melt adhesive coated on the outer layer 1 of the base material. The end of the heat shrinkable tape sheet is lapped into a sleeve shape, and the lap joint is welded and connected to form a heat shrinkable sleeve by an ultrasonic welding machine; The outer layers 1 of the base material overlap each other.

[0016] The production process of the heat-shrinkable sleeve in this embodiment is as follows: extruding and stretching the granulated special material for engineering pipelines (radiation cross-linked polyolefin material), then continuously irradiating, and continuously applying glue with special hot-melt adhesive , produce engineering pipeline heat shrinkable tape; then cut the heat shrinkable tape into sheets; then lap the outer layer 1 part of the sheet material into a sleeve (the lap le...

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Abstract

The invention relates to a joint engineer pipeline patch antisepsis heat-shrinking sleeve that includes outside of the base material and heat shrinking belt sheet material made up of the inner layer of hot-melt adhesive covered on the outside of the base material. The feature is that the head and the end of the heat-shrinking sleeve are connected together to form a circle, and welding the connecting place to heat shrinking sleeve by ultrasonic welding machine. By using the invention, the manufacturing efficiency, mechanization degree, and cracking resistance would be improved.

Description

technical field [0001] The invention belongs to spare parts used in pipes or piping systems and related to pipes or piping systems, relates to a welding type engineering pipeline patching anti-corrosion heat shrinkable sleeve, and particularly relates to an engineering pipeline patching anti-corrosion sleeve formed by ultrasonic welding Heat shrink sleeve. Background technique [0002] In the prior art, the structure of the anti-corrosion heat-shrinkable sleeve for the engineering pipeline is generally composed of the outer layer of the base material and the inner layer of the hot melt adhesive. It is produced by processes such as gluing. In this way, it is difficult to produce heat shrinkable sleeves with larger diameters, and the production efficiency is low, the process is cumbersome, the yield is low, the degree of mechanization is low, there are many factors that affect the quality of the product, the quality is not easy to control, the internal stress of the product i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L47/02F16L58/00
Inventor 左军郭鹏飞苏青山梁小庄陈代久
Owner 四川久远科技股份有限公司
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