Method for enhancing surface anti-fouling performance of stainless steel product

A stainless steel, anti-pollution technology, applied in the preparation of test samples, etc., can solve the problems affecting the measurement accuracy and residue of the instrument, achieve the effect of less pollutant residue, improve anti-pollution performance, and improve anti-pollution performance

Active Publication Date: 2013-06-12
李鹏 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is that when the stainless steel material treated by the stainless steel surface treatment method in the prior art is applied to a trace analysis monitoring instrument, sample molecules and pollutants will still form residues on the surface of the stainless steel, which will affect The measurement accuracy of the instrument, and then propose a method that can effectively improve the anti-pollution performance of the surface of stainless steel products

Method used

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  • Method for enhancing surface anti-fouling performance of stainless steel product

Examples

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Embodiment 1

[0027] The method for improving the anti-pollution performance of the surface of stainless steel products described in this embodiment includes:

[0028] (1) Use a metal cleaning agent to clean and wash the stainless steel products, then put the stainless steel products in 5% ammonium citrate solution, soak at 50°C for 60 minutes and then wash them with water;

[0029] (2) Heat the above water-washed stainless steel product to 80°C, keep it for 10 minutes, and then cool down to room temperature;

[0030] (3) Soak the above-mentioned treated stainless steel products in 20% nitric acid solution for 60 minutes at 10°C;

[0031] (4) Use deionized water to wash the stainless steel products after pickling and passivation, and then use compressed nitrogen to purge the stainless steel products for drying.

Embodiment 2

[0033] The method for improving the anti-pollution performance of the surface of stainless steel products described in this embodiment includes:

[0034] (1) Use a metal cleaning agent to clean and wash the stainless steel products, then put the stainless steel products in 8% ammonium citrate solution, soak at 55°C for 60 minutes and then wash them with water;

[0035] (2) Heat the above water-washed stainless steel product to 120°C, keep it for 30 minutes, and then cool it down to room temperature;

[0036] (3) Soak the above-mentioned stainless steel products in 35% nitric acid solution at 25°C for 60 minutes;

[0037] (4) Use deionized water to wash the stainless steel products after pickling and passivation, and then use compressed nitrogen to purge the stainless steel products for drying.

Embodiment 3

[0039] The method for improving the anti-pollution performance of the surface of stainless steel products described in this embodiment includes:

[0040] (1) Use a metal cleaning agent to clean and wash the stainless steel products, then put the stainless steel products in 10% ammonium citrate solution, soak at 70°C for 60 minutes, and then wash them with water;

[0041] (2) Heat the above water-washed stainless steel product to 100°C, keep it for 60 minutes, and then cool it down to room temperature;

[0042] (3) Soak the above-mentioned stainless steel products in 50% nitric acid solution at 30°C for 60 minutes;

[0043] (4) Use deionized water to wash the stainless steel products after pickling and passivation, and then use compressed nitrogen to purge the stainless steel products for drying.

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Abstract

The invention belongs to the field of surface treatment of stainless steel, and particularly relates to a method for enhancing surface anti-fouling performance of a stainless steel product, which comprises the following steps: (1) cleaning the stainless steel product; (2) heating the cleaned stainless steel product to 80-200 DEG C, keeping the temperature for more than 10 minutes, and cooling to room temperature; (3) cleaning with acid to passivate the stainless steel product; and (4) cleaning the stainless steel product subjected to acid cleaning passivation with water, and drying. Heating or repeated heating on the stainless steel product is added before acid cleaning passivation, so that invisible pollutants in holes of the surface of the stainless steel product can be removed easily, thereby enhancing the surface anti-fouling performance of the stainless steel product.

Description

Technical field [0001] The present invention involves a method of improving the surface anti -pollution performance of stainless steel products, which is the field of surface treatment of stainless steel. Background technique [0002] With the development of global chemistry, material science, biomedical, environmental science, surface science, and crime analysis, trace analysis technology has received more and more attention.The amount of trace analysis is to detect the concentration of the quantity element in the sample and use the probe technology to determine the distribution status of the sample or the surface of the sample.The element is below one million copies, so whether it exists in the sample, or the amount of trace impurities or pollutants on the surface of the sampler on the surface of the sampler when entering the samplerEssenceAt present, stainless steel materials have been applied to precision detection instruments. For example, the sampler of ion migration can be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/08G01N1/34
Inventor 李鑫夏炳鑫汪小知李鹏
Owner 李鹏
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