Production process of composite plastic-steel pipe with anti-corrosive coating

A steel-plastic composite pipe and anti-corrosion coating technology, which is applied in the direction of pipes, rigid pipes, pipes/pipe joints/fittings, etc., can solve the problems of high cost, intermittent production and low efficiency, and achieves low cost, Small footprint and high efficiency

Inactive Publication Date: 2003-05-14
李志雄
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AI Technical Summary

Problems solved by technology

[0002] At present, the domestic production of heavy anti-corrosion coated steel-plastic pipes firstly sandblasts (or shot blasts) the surface of the finished steel pipes, and then sprays heavy anti-corrosion coatings one by one. The production can only be carried out intermittently, with low efficiency and high cost.

Method used

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  • Production process of composite plastic-steel pipe with anti-corrosive coating

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] 1. First, install the steel strip coil material that has been divided into strips according to the specified size on the "steel strip unwinding machine".

[0008] Tension induction adjusts the tension degree of the steel strip; the splicing process is to weld the second coil to it when the previous coil is used up.

[0009] connected together to enable continuous production. The belt storage process is to store the steel belt for a certain length and give it to the belt worker

[0010] Provide enough time for the sequence.

[0011] 2. The surface treatment process adopts sand blasting and cold water cleaning, and then carries out hot air drying, so as to completely remove the surface oil of the steel strip

[0012] Dirt and oxide layer, and make the surface reach the appropriate anchor depth.

[0013] 3. The steel strip leveling process is to level the steel strip during work, which is the pre-forming process.

[0014] 4. The forming process is to roll t...

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Abstract

The production process of composite plastic-steel pipe with anticorrosion coating includes the steps of: unwinding steel belt, surface treatment, straightening, welding to form, straightening and fault finding, preheating, spraying in the outer and inner walls, painting glue to outer wall, coating outer plastic layer, cooling and end treatment. It is low in power consumption, produces no waste pollution, and the produced composite plastic-steel pipe with anticorrosive coating in its outer and inner surface is anticorrosive, heat resistant, long in life, non-toxic, high in strength, and has many other merits.

Description

technical field [0001] The invention relates to a processing method of an anti-corrosion coated steel-plastic composite pipe. Background technique [0002] At present, the domestic production of heavy anti-corrosion coated steel-plastic pipes firstly sandblasts (or shot blasts) the surface of the finished steel pipes, and then sprays heavy anti-corrosion coatings one by one. The production can only be carried out intermittently, with low efficiency and high cost. Contents of the invention [0003] The purpose of the present invention is to provide a processing method for anti-corrosion coated steel-plastic composite pipe that can realize automation of the production process, high production efficiency, low cost, small occupied space, low energy consumption, and no three waste pollution. [0004] The object of the present invention is achieved in this way: a manufacturing method of anti-corrosion coated steel-plastic composite pipe, characterized in that: the manufacturing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/147
Inventor 李志雄
Owner 李志雄
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