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Composite stainless steel pipe

A stainless steel pipe, seamless technology, applied in the direction of pipes, rigid pipes, pipes/pipe joints/pipe fittings, etc., can solve the problems of high manufacturing cost and complicated manufacturing methods

Inactive Publication Date: 2013-11-27
HAILONG ZHANGJIAGANG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many chemical materials are corrosive. In the prior art, steel-lined PTFE pipes are often used to transport materials. However, steel-lined PTFE is often made by pushing out extruded PTFE pipe lining or molding. The manufacturing method more complex and relatively expensive to manufacture

Method used

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  • Composite stainless steel pipe

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Embodiment Construction

[0014] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0015] The present invention provides an embodiment of a composite stainless steel pipe, comprising an inner layer 1, an outer layer 2 and an intermediate layer 3, the intermediate layer 3 is a seamless stainless steel pipe, and the inner layer 1 is electrostatically sprayed with the inside of the seamless stainless steel pipe as The titanium coating of the base, and the outer layer 2 is a thermal insulation layer bonded to the outside of the seamless stainless steel pipe by thermocompression. The thickness of the seamless stainless steel pipe is 2-30mm. The titanium coating is a titanium nitride coating or a titanium carbonitride coating with a thickness of 0.3-0.6 mm, and is electrostatically sprayed, and has a simple preparation method and low preparation cost. The insulation layer is polystyrene or polyurethane with a thickness of 50...

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Abstract

The invention relates to the field of stainless steel pipes, in particular to a composite stainless steel pipe. The composite stainless steel pipe comprises an inner layer, an outer layer and an intermediate layer, wherein the intermediate layer is a seamless stainless steel pipe; the inner layer is a titanium coating which adopts electrostatic spraying and utilizes the inner side of the seamless stainless steel pipe as a substrate; and the outer layer is a thermal insulation layer which is formed through thermocompression and glued on the outer side of the seamless stainless steel pipe. The composite stainless steel pipe adopts the stainless steel pipe as a main pipeline, the interior of the stainless steel pipe is coated with the titanium coating which has anti-corrosion effect; and further, the exterior is a polymer thermal insulation layer, so that the physical form of a transported material is changeless.

Description

technical field [0001] The invention relates to the field of stainless steel pipes, in particular to a composite stainless steel pipe. Background technique [0002] Stainless steel pipes are usually used to connect equipment in modern chemical industry for material circulation. Many chemical materials are corrosive. In the prior art, steel-lined PTFE pipes are often used to transport materials. However, steel-lined PTFE is often made by pushing out extruded PTFE pipe lining or molding. The manufacturing method It is more complex and the manufacturing cost is relatively high. Moreover, chemical materials have different melting points and boiling points, so they need to be kept warm throughout the transportation process to ensure the physical form of chemical materials. Therefore, it is necessary to provide a composite stainless steel pipe that is corrosion-resistant, heat-insulating, and simple to manufacture. Contents of the invention [0003] In order to solve the defi...

Claims

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Application Information

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IPC IPC(8): F16L9/147
Inventor 高林华龚立新田志林
Owner HAILONG ZHANGJIAGANG IND