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Corrosion-resistant coating material, and preparation method and use method thereof

A corrosion-resistant and coating technology, applied in the direction of anti-corrosion coatings, coatings, devices for coating liquid on the surface, etc., can solve problems such as corrosion, and achieve the effects of simple process, convenient operation, and reduced consumption and production costs

Inactive Publication Date: 2012-06-13
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems that the surface of steel is easily corroded and the utilization rate is low, the present invention provides a corrosion-resistant coating, its preparation method and application method, so as to solve the problem of not being consumed and corroded by high-temperature oxidation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Preparation of corrosion-resistant coatings: NiFe 2 o 4 , binder and water are mixed according to the following mass percentages:

[0031] Sodium metaaluminate with a mass concentration of 15% 20%

[0032] Deionized water 30%

[0033] NiFe 2 o 4 50%;

[0034] Then the mixture was stirred at 100° C. for 20 minutes to obtain the corrosion-resistant coating, which was gel-like, with a viscosity of 20 Pa·s and a pH of 5.

[0035] The using method of the above-mentioned corrosion-resistant coating of gained, through the following steps:

[0036] (1) Remove the rust layer, oxide layer and other dirt on the surface of the electrolytic aluminum prebaked anode steel claw, then wash it with hydrochloric acid, absolute ethanol and deionized water in sequence, and dry it at 50°C;

[0037] (2) Coating the prepared corrosion-resistant coating on the steel surface treated in step (1), with a coating thickness of 1 mm;

[0038] (3) Curing the ...

Embodiment 2

[0043] Preparation of corrosion-resistant coatings: NiFe 2 o 4 , binder and water are mixed according to the following mass percentages:

[0044] Aluminum phosphate with a mass concentration of 15% 15%

[0045] Distilled water 15%

[0046] NiFe 2 o 4 70%;

[0047] Then the mixture was stirred at 90° C. for 30 minutes to obtain the corrosion-resistant coating, which was gel-like with a viscosity of 15 Pa·s and a pH of 4.

[0048] The using method of the above-mentioned corrosion-resistant coating of gained, through the following steps:

[0049] (1) Remove the rust layer, oxide layer and other dirt on the surface of 45# steel, then wash it with hydrochloric acid, absolute ethanol and distilled water in sequence, and dry it at 20°C;

[0050] (2) Coating the prepared corrosion-resistant coating on the steel surface treated in step (1), the coating thickness is 3mm;

[0051] (3) Curing the coated steel in step (2) at room temperature for 2 ...

Embodiment 3

[0054] Preparation of corrosion-resistant coatings: NiFe 2 o 4 , binder and water are mixed according to the following mass percentages:

[0055] Sodium metaaluminate with a mass concentration of 20% 20%

[0056] Deionized water 20%

[0057] NiFe 2 o 460%;

[0058] Then the mixture was stirred at 20° C. for 10 minutes to obtain the corrosion-resistant coating, which was gel-like, with a viscosity of 0.1 Pa·s and a pH of 6.

[0059] The using method of the above-mentioned corrosion-resistant coating of gained, through the following steps:

[0060] (1) Remove the rust layer, oxide layer and other dirt on the surface of the electrolytic aluminum prebaked anode steel claw, then wash it with hydrochloric acid, absolute ethanol and distilled water in sequence, and dry it at 70 °C;

[0061] (2) Coating the prepared corrosion-resistant coating on the steel surface treated in step (1), the coating thickness is 0.4 mm;

[0062] (3) Curing the coated steel in step (2) at room tem...

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Abstract

The invention provides a corrosion-resistant coating material, a preparation method of the corrosion-resistant coating material and a use method of the corrosion-resistant coating material. The corrosion-resistant coating material is made from the following ingredients in percentage by mass: 15-20% of binding agent, 15-30% of water and 50-70% of NiFe2O4 and is formed by mixing the ingredients and then stirring at a certain temperature. The use method of the corrosion-resistant coating material comprises the following steps of: pretreating the surface of a steel product; coating the corrosion-resistant coating material on the surface of the steel product; curing; and carrying out drying or heat treatment, namely, finishing coating the corrosion-resistant coating material on the surface of the steel product. After coating the corrosion-resistant coating material on the surface of the steel product, a coating capable of preventing air and CO2 from diffusing inwards the steel product can be formed on the surface of the steel product, the steel product is effectively protected from being oxidized at high temperature, and thus, the consumption and the production cost of the steel product are lowered. The corrosion-resistant coating material provided by the invention does not contain organic matters, and the inorganic coating on the surface of the steel product body is continuous and compact, so that the chemical stability is good. The use method has the advantages of simplicity, energy saving, environmental friendliness, low equipment requirement and low cost.

Description

technical field [0001] The invention relates to a corrosion-resistant paint, a preparation method and a use method thereof, in particular to a high-temperature anti-oxidation and corrosion-resistant paint, a preparation method and a use method thereof, and belongs to the technical field of metallurgical materials. Background technique [0002] With the wide application of steel, the anticorrosion of steel structures has attracted more and more attention. According to the incomplete statistics of developed countries, the annual economic loss due to corrosion accounts for about 1% to 4% of the total output value of the national economy, and the annual corroded steel accounts for 1% to 4% of my country's production. 20% of the total, 30% steel equipment and tools are scrapped due to corrosion. The economic loss caused by corrosion is as high as more than 30 billion yuan per year, accounting for 4% of the gross national product. Especially in high temperature and strong corrosio...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D7/12C09D5/08B05D5/00B05D7/14B05D3/02B05D3/10
Inventor 严继康贾瑞娇袁君甘国友邱哲生周永全杜景红张家敏易健宏
Owner KUNMING UNIV OF SCI & TECH
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