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Test liquid for detecting cleaning effect of wet flat steel plate before electrolytic tin plating and detection method

A technology of cleaning effect and testing liquid, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by chemical reaction of materials, etc., can solve the problem of undetectable cleaning effect of wet flat steel plate before electroplating, etc. Achieve the effect of low work intensity, simple preparation and easy operation

Inactive Publication Date: 2016-02-10
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a test solution and a detection method for detecting the cleaning effect of the wet flat steel plate before electrotin plating, to solve the technical problem that the cleaning effect of the wet flat steel plate before electrotin plating cannot be detected, and to provide a solution for the judgment of the cleaning effect of the cold rolled tin plated substrate in accordance with

Method used

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  • Test liquid for detecting cleaning effect of wet flat steel plate before electrolytic tin plating and detection method
  • Test liquid for detecting cleaning effect of wet flat steel plate before electrolytic tin plating and detection method
  • Test liquid for detecting cleaning effect of wet flat steel plate before electrolytic tin plating and detection method

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Effect test

Embodiment 1

[0034] The test solution for detecting the cleaning effect of the wet flat steel plate before tinning is composed of the following according to the mass concentration: o-phenanthroline 1.2g / L, NaCl 2.0g / L, and the balance is deionized water.

[0035] The preparation method of the test solution of the present invention: Weigh 1.2g o-phenanthroline and 2.0g NaCl, put them into a 1L container, add deionized water to 1L, and stir evenly.

[0036] The method for detecting the cleaning effect of wet flat steel plate before electro-tinning comprises the following steps:

[0037] a. Weigh 1.2g o-phenanthroline and 2.0g NaCl, put it into a 1L container, add deionized water to 1L, stir evenly to prepare a test solution, and place it for use;

[0038] b. Put the two steel plates to be tested, both of which are 100mm*100mm in size, on the test bench after cleaning, drop 4 drops of test liquid respectively and start timing. The diameter of the spherical crown of the water drop is about 1.5...

Embodiment 2

[0041] The test solution for detecting the cleaning effect of the wet flat steel plate before electro-tinning consists of the following components according to the mass concentration: o-phenanthroline 1.0g / L, NaCl 3.0g / L, and the balance is deionized water.

[0042] The preparation method of the test solution of the present invention: weigh 1.0 g o-phenanthroline and 3.0 g NaCl, put them into a 1 L container, add deionized water to 1 L, and stir evenly.

[0043] The method for detecting the cleaning effect of wet flat steel plate before electro-tinning comprises the following steps:

[0044] a. Weigh 1.0g o-phenanthroline and 3.0g NaCl, put them into a 1L container, add deionized water to 1L, stir evenly to prepare a test solution, and place it for use;

[0045] b. Put the two steel plates to be tested, both of which are 100mm*100mm in size, on the test bench after cleaning, drop 4 drops of test liquid respectively and start timing. The diameter of the spherical crown of the w...

Embodiment 3

[0048] The test solution for detecting the cleaning effect of the wet flat steel plate before electro-tinning is composed of the following according to the mass concentration: sulfosalicylic acid 1.2g / L, KCl 2.0g / L, and the balance is deionized water.

[0049] The preparation method of the test solution of the present invention: weigh 1.2g of sulfosalicylic acid and 2.0g of KCl, put them into a 1L container, add deionized water to 1L, and stir evenly.

[0050] The method for detecting the cleaning effect of wet flat steel plate before electro-tinning comprises the following steps:

[0051] a. Weigh 1.2g sulfosalicylic acid and 2.0g KCl, put them into a 1L container, add deionized water to 1L, stir evenly to prepare a test solution, and place it for use;

[0052] b. Put the two steel plates to be tested, both of which are 100mm*100mm in size, on the test bench after cleaning, drop 4 drops of test liquid respectively and start timing. The diameter of the spherical crown of the w...

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Abstract

The invention relates to a test liquid for detecting a cleaning effect of a wet flat steel plate before electrolytic tin plating and a detection method, and solves a technical problem that a cleaning effect of a wet flat steel plate before electrolytic tin plating cannot be detected in the prior art. The test liquid for detecting the cleaning effect of the wet flat steel plate before electrolytic tin plating comprises, by mass concentration: 0.5-1.5 g / L of a color developing agent and 0.5-5.0 g / L of an accelerant, with the balance being deionized water, wherein the color developing agent is one of o-phenanthroline or sulfosalicylic acid; and the accelerant is one or two of sodium chloride, potassium chloride, magnesium chloride, and ammonium chloride without a requirement of a ratio of the components. The detection method provides a basis for judging a cleaning effect of a cold-rolled electrolytic-tin-plating substrate.

Description

technical field [0001] The invention belongs to the field of metal material detection, and relates to a detection reagent for the cleaning effect of a cold-rolled tin-plated substrate, in particular to a test solution and a detection method for detecting the cleaning effect of a wet flat steel plate before electro-tinning, and mainly provides a method for judging the cleaning effect of a cold-rolled tin-plated substrate. in accordance with. Background technique [0002] Cold-rolled tinplate is widely used in food, beverages, and sprays because of its substrate (steel plate) with suitable strength, excellent weldability and punchability, and surface coating with good corrosion resistance and easy coating and printing. , chemicals, paints and other forms of packaging and the manufacture of various appliances. [0003] Cold-rolled tin-plated steel plate is a typical thin-coated plate. In recent years, as manufacturers have higher and higher requirements for cost control, the...

Claims

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Application Information

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IPC IPC(8): G01N21/78
Inventor 王鑫艳安成强陆伟星贾亮尚元艳刘春明刘丽愉
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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