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A kind of preparation method of galvanized electrophoretic paint steel pipe for gas

A technology of galvanized steel pipe and electrophoretic paint, applied in the direction of electrophoretic coating, pipes, rigid pipes, etc., can solve the problems of prolonging the service life of gas pipelines, improve the effect of antirust and ultraviolet resistance, good acid and alkali resistance, The effect of increasing market share

Active Publication Date: 2019-03-12
济南迈科管道科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The galvanized electrophoretic paint steel pipe for gas prepared by the preparation method of the galvanized electrophoretic paint steel pipe for gas can not only overcome the defect that the galvanized steel pipe cannot withstand acid and alkaline environment corrosion, but also improve the rust resistance of the galvanized electrophoretic paint steel pipe for gas It can also improve the quality of galvanized electrophoretic paint steel pipes for gas, and prolong the service life of galvanized electrophoretic paint steel pipes for gas and the connected gas pipelines; it can also realize the matching use of the surface color of galvanized electrophoretic paint steel pipes for gas The color of other pipelines and their connectors is consistent

Method used

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  • A kind of preparation method of galvanized electrophoretic paint steel pipe for gas

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Experimental program
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Effect test

Embodiment 1

[0017] Such as figure 1 As shown, a preparation method of galvanized electrophoretic paint steel pipe for gas, comprising a steel pipe substrate, is characterized in that: the surface of the steel pipe substrate has a galvanized layer and an electrophoretic paint layer in sequence, the galvanized layer is the inner layer, and the electrophoretic paint layer is The first layer of paint is the outer layer; the thickness of the galvanized layer is 55 μm, the thickness of the electrophoretic paint layer is 30 μm, adhesion ≤ grade 1, impact force ≥ 70 kg cm, pencil hardness ≥ H, UV resistance 400h, acid resistance 3 hours ( 6mol);

[0018] The electrophoretic paint layer is an acrylic epoxy resin paint layer;

[0019] Include the following steps:

[0020] A. Galvanizing steps for the steel pipe substrate: when the steel pipe substrate is galvanized, the temperature of the galvanizing solution is 435°C, the galvanizing time is 45 seconds, the water temperature is 50°C, and the thi...

Embodiment 2

[0026] Such as figure 1 As shown, a preparation method of galvanized electrophoretic paint steel pipe for gas, comprising a steel pipe substrate, is characterized in that: the surface of the steel pipe substrate has a galvanized layer and an electrophoretic paint layer in sequence, the galvanized layer is the inner layer, and the electrophoretic paint layer is The paint layer is the outer layer; the thickness of the galvanized layer is 60 μm, the thickness of the electrophoretic paint layer is 40 μm, adhesion ≤ grade 1, impact force ≥ 70kg cm, pencil hardness ≥ H, UV resistance 500h, acid resistance 4 hours ( 6mol);

[0027] The electrophoretic paint layer is an acrylic epoxy resin paint layer;

[0028] Include the following steps:

[0029] A. Galvanizing steps for the steel pipe substrate: when the steel pipe substrate is galvanized, the temperature of the galvanizing solution is 455°C, the galvanizing time is 55 seconds, the water temperature is 70°C, and the thickness of ...

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Abstract

The invention discloses a galvanized and electrophoretic paint coated gas steel pipe and a preparation method of the galvanized and electrophoretic paint coated gas steel pipe. The galvanized and electrophoretic paint coated gas steel pipe comprises a steel pipe substrate, and is characterized in that a galvanizing layer and an electrophoretic paint coating layer are sequentially arranged on the surface of the steel pipe substrate. The galvanizing layer is an inner layer. The electrophoretic paint coating layer is an outer layer. The thickness of the galvanizing layer is 55-60 microns. The thickness of the electrophoretic paint coating layer is 30-40 microns. The grade of the adhesive force is equal to or smaller than 1. The impact force is equal to or larger than 70 kg.cm. The pencil hardness is higher than H. The galvanized and electrophoretic paint coated gas steel pipe resists UV for 400-500 h. The acid resistance is 3-4 h (6 mol). The defect that a traditional galvanized steel pipe cannot resist acidic corrosion and alkaline corrosion is overcome, the rust-proof effect and the UV resistant effect of the galvanized and electrophoretic paint coated gas steel pipe are improved, the durable years of the galvanized and electrophoretic paint coated gas steel pipe and a gas pipeline connected with the galvanized and electrophoretic paint gas coated gas steel pipe are prolonged, and the market share is increased.

Description

technical field [0001] The invention belongs to a pipe product for pipeline connection and a preparation method thereof, in particular to a preparation method of a galvanized electrophoretic paint steel pipe for gas. Background technique [0002] At present, galvanizing technology is mostly used for surface treatment of steel pipes. Galvanized steel pipes cannot withstand corrosion in acidic and alkaline environments. In addition, the anti-rust and ultraviolet resistance effects of galvanized steel pipes are not very good. Gas steel pipes are mostly used outdoors. During the use of gas steel pipes installed outdoors, due to rainfall, acidic substances in the atmosphere, and ultraviolet rays, it is easy to cause damage to the steel pipe matrix of outdoor gas steel pipes, reducing the use of gas pipes. At the same time, most of the surface colors of galvanized steel pipes do not match the colors of other pipelines and their connectors used in conjunction with them, which affec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D13/14C25D13/06C25D13/20F16L9/02
CPCC25D13/04C25D13/14C25D13/20F16L9/02
Inventor 孔令磊任艳青杨超张传兵张德刚姜永
Owner 济南迈科管道科技有限公司
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