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Technique for manufacturing ceramic composite steel pipe

A composite steel pipe and manufacturing process technology, applied in the field of composite pipeline manufacturing process, can solve problems such as poor wear resistance of pipelines, and achieve the effects of fast forming speed and good composite performance.

Inactive Publication Date: 2013-10-23
扬州金鑫管业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of poor wear resistance of current pipelines

Method used

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  • Technique for manufacturing ceramic composite steel pipe

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The ceramic composite steel pipe manufacturing process provided by the present invention comprises the following steps:

[0021] (1) Weighing: Weigh a certain amount of iron red and aluminum powder according to the weight ratio of iron red: aluminum powder = 3:1;

[0022] (2) Stir evenly: mix the granular iron red and aluminum powder together, and stir fully at room temperature to make the two raw materials mix evenly;

[0023] (3) Put the steel pipe into the centrifuge: put the steel pipe horizontally into the centrifuge, and tighten the screws;

[0024] (4) Load the raw materials into the steel pipe: Pour the granular raw materials evenly into the bottom of the steel pipe, and seal the two ends of the steel pipe with metal covers;

[0025] (5) Turn on the centrifuge: After the raw material is poured into the steel pipe, turn on the centrifuge, and the rotation speed of the centrifuge is 5000rpm;

[0026] (6) Ignition for thermite reaction (SHS): After the centrifuge...

Embodiment 2

[0029] The ceramic composite steel pipe manufacturing process provided by the present invention comprises the following steps:

[0030] (1) Weighing: Weigh a certain amount of iron red and aluminum powder according to the weight ratio of iron red: aluminum powder = 3:1;

[0031] (2) Stir evenly: mix the granular iron red and aluminum powder together, and stir fully at room temperature to make the two raw materials mix evenly;

[0032] (3) Put the steel pipe into the centrifuge: put the steel pipe horizontally into the centrifuge, and tighten the screws;

[0033] (4) Load the raw materials into the steel pipe: Pour the granular raw materials evenly into the bottom of the steel pipe, and seal the two ends of the steel pipe with metal covers;

[0034] (5) Turn on the centrifuge: After the raw material is poured into the steel pipe, turn on the centrifuge, and the rotation speed of the centrifuge is 15000rpm;

[0035] (6) Ignition for thermite reaction (SHS): After the centrifug...

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PUM

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Abstract

The invention provides a technique for manufacturing a ceramic composite steel pipe. According to the technique, an Al2O3 ceramic coating is generated through the SHS (Self-propagation High-temperature Synthesis) chemical reaction of the mixture of red iron oxide and aluminum powder which are laid on the inner wall of a steel pipe in the state of high speed revolution. According to the invention, the generated Al2O3 ceramic coating is compact and uniform, and does not peel and drop; the mixture of red iron oxide and aluminum powder is uniformly and closely attached to the inner wall of the steel pipe under the action of high-speed centrifugation of a centrifugal machine, so that the composite property is good; the forming speed is high; the manufactured ceramic composite steel pipe can resist corrosion and abrasion.

Description

technical field [0001] The invention relates to a manufacturing process of a composite pipe, in particular to a manufacturing process of a ceramic composite steel pipe. Background technique [0002] Wear-resistant and anti-corrosion pipelines are widely used in electric power, chemical industry, metallurgy and construction industries. In the application of engineering components, the main forms of material damage are wear, corrosion and fracture. Among them, wear and corrosion account for more than 80% of the total number of material failures. [0003] At present, the pipes used in the wear-resistant and anti-corrosion fields at home and abroad are metal pipes, polymer pipes, inorganic material pipes and composite pipes composed of two materials. Composite pipes such as ceramic composite steel pipes and rubber lined composite pipes. There is also nickel phosphating treatment or coating with a layer of plastic material on the inner surface of metal pipes. Because these pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/16B22D19/08
Inventor 金明成乐玉飞郭衡
Owner 扬州金鑫管业有限公司