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Zinc-plated plastic-lined composite pipe production technology and composite pipe

A production process and composite pipe technology, applied in the direction of pipes/pipe joints/fittings, pipes, rigid pipes, etc., can solve problems such as complex process flow, and achieve the effect of simple production process operation, high production efficiency, and good bonding force

Active Publication Date: 2012-11-28
GUANGDONG LIANSU TECH INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention patent with the publication number of 1367075 discloses the manufacturing method of the outer galvanized inner polyethylene steel-plastic composite pipe, and its process flow is relatively complicated

Method used

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  • Zinc-plated plastic-lined composite pipe production technology and composite pipe

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0017] The production process of an outer galvanized composite pipe lined with plastic according to the present invention sequentially performs the following treatments on the galvanized pipe fittings:

[0018] 1. Degreasing: Use 100% degreasing oil or white electric oil to clean the surface of galvanized pipe fittings, sometimes with the help of an ultrasonic cleaner.

[0019] 2. Anti-rust: Use anti-rust liquid to prevent the overall rust of the cleaned galvanized pipes, including the port teeth.

[0020] 3. Glue: Apply a layer of glue to the inner wall of the galvanized pipe fittings except for the tooth pattern.

[0021] 4. Braces installation: Select the corresponding braces according to the specifications of the pipe fittings, and the tooth patterns on the workpiece must be fully protected. The braces must be screwed in place and the silk teeth must n...

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Abstract

The invention provides a zinc-plated plastic-lined composite pipe production technology, wherein a zinc-plated pipe is sequentially processed as follows: oil removal, rust prevention, gluing, toothed socket assembly, internal injection molding, toothed socket removal, cooling, correction, inspection and packing. The production technology provided by the invention is easy to operate and has high production efficiency. The binding force between the plastic layer and the zinc-plated pipe is good, the separation layer is avoided, and the product quality is stable.

Description

Technical field [0001] The invention relates to the field of production of plastic-lined pipes, in particular to a production process for an outer galvanized and plastic-lined composite pipe and a composite pipe. Background technique [0002] With the elimination and restriction of galvanized steel pipes in water supply construction projects, the current market has replaced them with composite steel pipes, such as plastic-lined pipes. Plastic-lined pipe is a new type of pipe fitting recently developed in China. It is based on ordinary carbon steel pipe and is lined with chemically excellent thermoplastics. It has been cold-drawn composite or rotomolded. It has both the mechanical properties of steel pipes and plastic The pipe has corrosion resistance, is not easy to scale and grow microorganisms. It is an ideal pipe for transporting acid, alkali, salt, corrosive gas and other media. Plastic-lined pipes integrate the common advantages of steel pipes and plastic products, and are ...

Claims

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Application Information

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IPC IPC(8): B29D23/00B29C45/78B29C45/77B29C45/14F16L9/147
Inventor 方有泉
Owner GUANGDONG LIANSU TECH INDAL
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