Multi-layer composite heat-resistant tube for desert and manufacturing method thereof

Abstract

The invention discloses a multi-layer composite heat-resistant tube for desert and a manufacturing method thereof. The multi-layer composite heat-resistant tube comprises a plastic outer layer, a sealing rubber ring and an aluminum alloy inner layer, wherein the plastic outer layer comprises an ultraviolet ageing resistant protective layer and a plastic protective layer; and a hot melt adhesive layer is arranged between the aluminum alloy inner layer and the sealing rubber ring. Processing steps for the multi-layer composite heat-resistant tube for desert are as follows: coating hot melt adhesive on the outer surface of the aluminum alloy inner tube, sleeving the sealing rubber ring on the surface of the hot melt adhesive in a penetrating mode for firmly bonding the sealing ring, and sleeving the plastic outer layer along the sealing rubber ring in the penetrating mode. The multi-layer composite heat-resistant tube for desert disclosed by the invention is resistant to a high and low temperature, is strong in ultraviolet ageing resistance, is small in light and is easily mounted.

Description

technical field [0001] The invention relates to the technical field of pipes, in particular to a multilayer composite heat-resistant pipe for deserts and a preparation method thereof. Background technique [0002] At present, PE, PPR, and PVC-U plastic drinking water pipes have the advantages of environmental protection, safety, corrosion resistance, light weight, easy installation, and strong pressure bearing capacity, and have been widely used in municipal engineering and urban building drinking water pipe networks. And PE, PPR, PVC-U plastic drinking water pipe in the prior art just has a lot of defects when using in desert area, for example: [0003] 1. The PPR water supply pipes of the prior art are poor in low temperature resistance and brittleness, and are generally installed indoors in residential buildings. When used in desert areas, the temperature difference between day and night is large, and the lowest temperature in winter can reach below -5°C, which is very ea...

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Problems solved by technology

[0003] 1. The PPR water supply pipes of the prior art are poor in low temperature resistance and brittleness, and are generally installed indoors in residential buildings. When used in desert areas, the temperature difference between day and night is large, and the lowest temperature in winter can reach below -5°C, which is very easy to appear. The risk of brittle cracking or bursting of PPR pipes cannot meet the needs of existing technologies

[0004] 2. Although the PE water supply pipe of the prior art has good low temperature resistance, the long-term use temperature is below 60°C. When the temperature is too high, the PE pipe will be deformed, so it cannot meet the needs of the prior art.

[0005] 3. The PVC-U pipe of the prior art has poor anti-ultraviolet aging ability, especially under the condition of high temperature and sunlight, it is easy to degrade, so it cannot meet the needs of the prior art

[0006] 4. The aluminum tubes of the prior art have high processing and manufacturing costs, consume natural resources, are easy to corrode, and have poor thermal insulation properties, so they cannot meet the needs of the prior art

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