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Treatment method of coating with anti-corrosion function on iron-based surface

A technology of coating treatment and anti-corrosion coating, which is applied in anti-corrosion coatings, coatings, metal material coating processes, etc., can solve the problems of not being able to meet high strength, corrosion resistance and wear resistance at the same time, achieve high hardness, improve properties, effects of excellent corrosion resistance

Inactive Publication Date: 2020-09-25
宁波计氏金属新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this treatment method of spraying a single coating often cannot meet the requirements of high strength, corrosion resistance, wear resistance and other properties at the same time.

Method used

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  • Treatment method of coating with anti-corrosion function on iron-based surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A coating treatment method with an anti-corrosion function on an iron-based surface, comprising the following steps:

[0048] (1) grinding the iron-based alloy;

[0049] (2) sandblasting the polished iron-based alloy;

[0050] (3) After cleaning the surface of the iron-based alloy after sand blasting, place it in an oven at 60-100°C for 0.2-0.5h, and spray the first anti-corrosion coating on the surface of the iron-based alloy while it is hot;

[0051] (4) After the first anti-corrosion coating is completely dry, place the iron-based alloy coated with the first anti-corrosion coating in an oven at 60-100°C for another 0.2-0.5h, and then heat the first anti-corrosion coating while it is hot. The surface of the coating is coated with a second anti-corrosion coating by supersonic flame spraying.

[0052] The sandblasting is dry sandblasting, the abrasive used in the sandblasting is 20# white corundum sand, the pressure of the sandblasting is 0.65MPa, and the speed of the...

Embodiment 2

[0083] A coating treatment method with an anti-corrosion function on an iron-based surface, comprising the following steps:

[0084] (1) grinding the iron-based alloy;

[0085] (2) sandblasting the polished iron-based alloy;

[0086] (3) After cleaning the surface of the iron-based alloy after sand blasting, place it in an oven at 60-100°C for 0.2-0.5h, and spray the first anti-corrosion coating on the surface of the iron-based alloy while it is hot;

[0087] (4) After the first anti-corrosion coating is completely dry, place the iron-based alloy coated with the first anti-corrosion coating in an oven at 60-100°C for another 0.2-0.5h, and then heat the first anti-corrosion coating while it is hot. The surface of the coating is coated with a second anti-corrosion coating by supersonic flame spraying.

[0088] The sand blasting treatment is dry sand blasting treatment, the abrasive used in the sand blasting treatment is 20# white corundum sand, the pressure of the sand blastin...

Embodiment 3

[0119] A coating treatment method with an anti-corrosion function on an iron-based surface, comprising the following steps:

[0120] (1) grinding the iron-based alloy;

[0121] (2) sandblasting the polished iron-based alloy;

[0122] (3) After cleaning the surface of the iron-based alloy after sand blasting, place it in an oven at 60-100°C for 0.2-0.5h, and spray the first anti-corrosion coating on the surface of the iron-based alloy while it is hot;

[0123] (4) After the first anti-corrosion coating is completely dry, place the iron-based alloy coated with the first anti-corrosion coating in an oven at 60-100°C for another 0.2-0.5h, and then heat the first anti-corrosion coating while it is hot. The surface of the coating is coated with a second anti-corrosion coating by supersonic flame spraying.

[0124] The sandblasting is dry sandblasting, the abrasive used in the sandblasting is 20# white corundum sand, the pressure of the sandblasting is 0.65MPa, and the speed of the...

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Abstract

The invention relates to the field of anticorrosive coatings, in particular to a treatment method of a coating with an anticorrosive function on an iron-based surface, which comprises the following steps: (1) polishing an iron-based alloy; (2) performing sand blasting treatment on the polished iron-based alloy; (3) cleaning the surface of the iron-based alloy subjected to sand blasting treatment,putting the iron-based alloy into a drying oven of 60-100 DEG C to be treated for 0.2-0.5 h, and spraying a first anti-corrosion coating on the surface of the iron-based alloy by using high velocity oxy-fuel while the iron-based alloy is hot; and (4) after the first anti-corrosion coating is completely dried, placing the iron-based alloy coated with the first anti-corrosion coating in a drying oven at the temperature of 60-100 DEG C to be treated again for 0.2-0.5 h, and then spraying a second anti-corrosion coating on the surface of the first anti-corrosion coating through hypersonic flame while the iron-based alloy is hot. The method solves the problem that an existing treatment method for spraying a single coating usually cannot meet the requirements for high strength, corrosion resistance, abrasion resistance and the like at the same time.

Description

technical field [0001] The invention relates to the field of anti-corrosion coatings, in particular to a coating treatment method with an anti-corrosion function on the iron-based surface. Background technique [0002] Among metal structural materials, iron-based alloy materials are more commonly used, with high density, good mechanical properties, and high strength and stiffness. The iron base also has the advantages of good dimensional stability, excellent thermal and electrical conductivity, and will not be easily deformed when cast into structural parts, so it is widely used in various aspects of the industrial field. However, the corrosion resistance of the iron base itself is poor, and it cannot meet the requirements of harsh environments, which limits its application. [0003] In the prior art, generally in order to achieve a series of functions, a certain coating is sprayed on the surface of the iron base, which can achieve the purpose of saving materials and energy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D169/00C09D175/06C09D5/08C09D7/65C09D7/61C09D7/63C09D7/62C23C4/129C23C4/02C23C4/04C08G18/66C08G18/42C08G18/28C08G18/32C08G18/10
CPCC08G18/10C08G18/289C08G18/42C08K2003/2241C08L2205/03C09D5/08C09D163/00C23C4/02C23C4/04C23C4/129C09D7/61C09D7/62C09D7/63C09D7/65C09D7/70C08L69/00C08K13/06C08K7/14C08K3/041C08K3/14C08L75/06C08K3/34C08K3/22C08K9/10C08K3/04C08G18/3206
Inventor 计佩蓉
Owner 宁波计氏金属新材料有限公司
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