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Wear-resistant stainless steel welded pipe and preparation process thereof

A preparation process, stainless steel technology, applied in coatings, epoxy resin coatings, etc., can solve problems such as short life and easy wear, and achieve the effects of improving brittleness, prolonging service life, and improving wear resistance.

Inactive Publication Date: 2021-11-26
华迪钢业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But at present, in the pipelines used by dredgers, sand blowers, power plants, and mines, the traditional ordinary stainless steel welded pipes have disadvantages such as easy wear and short life, so the existing stainless steel welded pipes still need to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The application discloses a wear-resistant stainless steel welded pipe and its preparation process; a wear-resistant stainless steel welded pipe, including a pipe body, the surface of the pipe body is coated with wear-resistant paint, and the wear-resistant paint includes the following components: epoxy resin, polyoxymethylene resin , pentaerythritol, polygalacturonic acid, inorganic filler; wherein the inorganic filler is nano-calcium carbonate.

[0047] A preparation process for a wear-resistant stainless steel welded pipe, comprising the steps of:

[0048] S1. Preparation of wear-resistant coating: Mix pentaerythritol and inorganic filler for 10 minutes, then add polygalacturonic acid, heat up to 30°C and continue stirring for 30 minutes to obtain a viscous product;

[0049] Stir and mix the epoxy resin and polyoxymethylene resin at 80°C for 50 minutes, then add the viscous product, and continue stirring for 50 minutes to obtain a wear-resistant coating;

[0050] S2...

Embodiment 2

[0053] The application discloses a wear-resistant stainless steel welded pipe and its preparation process; a wear-resistant stainless steel welded pipe, including a pipe body, the surface of the pipe body is coated with wear-resistant paint, and the wear-resistant paint includes the following components: epoxy resin, polyoxymethylene resin , pentaerythritol, polygalacturonic acid, inorganic filler; wherein the inorganic filler is nano-calcium carbonate.

[0054] A preparation process for a wear-resistant stainless steel welded pipe, comprising the steps of:

[0055] S1. Preparation of wear-resistant coating: Mix pentaerythritol and inorganic filler for 15 minutes, then add polygalacturonic acid, heat up to 40°C and continue stirring for 35 minutes to obtain a viscous product;

[0056] Stir and mix the epoxy resin and polyoxymethylene resin at 90°C for 60 minutes, then add the viscous product, and continue stirring for 60 minutes to obtain a wear-resistant coating;

[0057] S2...

Embodiment 3

[0060] The application discloses a wear-resistant stainless steel welded pipe and its preparation process; a wear-resistant stainless steel welded pipe, including a pipe body, the surface of the pipe body is coated with wear-resistant paint, and the wear-resistant paint includes the following components: epoxy resin, polyoxymethylene resin , pentaerythritol, polygalacturonic acid, inorganic filler; wherein the inorganic filler is nano-calcium carbonate.

[0061] A preparation process for a wear-resistant stainless steel welded pipe, comprising the steps of:

[0062] S1. Preparation of wear-resistant coating; mix and stir pentaerythritol and inorganic filler for 13 minutes, then add polygalacturonic acid, heat up to 35°C and continue stirring for 32 minutes to obtain a viscous product;

[0063] Stir and mix the epoxy resin and polyoxymethylene resin at 85°C for 55 minutes, then add the viscous product, and continue stirring for 55 minutes to obtain a wear-resistant coating;

...

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Abstract

The invention relates to a wear-resistant stainless steel welded pipe and a preparation process thereof. The wear-resistant stainless steel welded pipe comprises a pipe body, wherein the surface of the pipe body is coated with wear-resistant paint which comprises, by weight, 40 to 50 parts of epoxy resin; 10 to 15 parts of polyformaldehyde resin; 6 to 8 parts of pentaerythritol; 2 to 3 parts of polygalacturonic acid; and 2 to 3 parts of an inorganic filler. The preparation process of the wear-resistant stainless steel welded pipe comprises the steps of preparation of the wear-resistant coating and spraying of the wear-resistant coating. The wear-resistant coating has the following advantages and effects that the polyformaldehyde resin and the epoxy resin have good bonding performance, and the brittleness of the epoxy resin is improved, so that the wear-resistant coating has good wear resistance; meanwhile, the inorganic filler and the pentaerythritol are mixed, and the polygalacturonic acid is further added, so that the polygalacturonic acid and the pentaerythritol react; the obtained product can enable the inorganic filler and the epoxy resin to have good interface bonding property, so that the wear-resistant effect of the wear-resistant coating is improved, and the wear resistance of the stainless steel welded pipe is improved.

Description

technical field [0001] The application relates to the technical field of stainless steel welded pipes, in particular to a wear-resistant stainless steel welded pipe and its preparation process. Background technique [0002] Stainless steel welded pipe refers to the stainless steel pipe made of stainless steel strip or stainless steel flat plate after crimping and forming by the unit and mold, also referred to as welded pipe. [0003] The existing Chinese patent with the publication number CN112410842A discloses a preparation method of a high-temperature oxidation-resistant stainless steel pipe, which belongs to the field of stainless steel pipe manufacturing; a layer of composite film is coated on the surface of stainless steel by electrodeposition coating, and then by optimizing the composition content of stainless steel , while maintaining the original excellent physical properties of stainless steel, it greatly improves the ability of stainless steel pipes to resist high ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/65C09D7/63C09D7/61
CPCC09D163/00C09D7/65C09D7/63C09D7/61C08L2205/03C08L2203/18C08K2003/265C08K2201/011C08L59/00C08K5/09C08K5/053C08K3/26C08L79/04C08K3/36C08K5/55C08K5/1539C08K13/02
Inventor 王会森孙晓林张将
Owner 华迪钢业集团有限公司
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