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Test solution and detection method for rapidly detecting corrosion resistance of tin-plated steel plate

A tin-plated steel plate, corrosion resistance technology, applied in the direction of weather resistance/light resistance/corrosion resistance, measuring devices, instruments, etc. Easy to operate, simple to formulate effects

Inactive Publication Date: 2018-05-11
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a test solution and a detection method for quickly detecting the corrosion resistance of tin-plated steel sheets, which mainly solves the problem that the corrosion resistance of tin-plated sheets on site is difficult to detect quickly and accurately, and is a test solution for the corrosion resistance of cold-rolled tin-plated steel sheets. Provide basis for quick judgment

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  • Test solution and detection method for rapidly detecting corrosion resistance of tin-plated steel plate

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Embodiment 1

[0023] Example 1, the size of the detected tin-plated steel samples is 100mm*100mm, the grade is MRT4-CA, the thickness of the steel plate is 0.2mm, and the thickness of the tin coating on the tin-plated steel plate is respectively 5.6g / m 2 , 8.4g / m 2 , 11.2g / m 2 , respectively prepare three groups of samples of the tinned steel plate to be tested with the same tin coating thickness.

[0024] A test solution for quickly detecting the corrosion resistance of tin-plated steel sheets. The test solution is a yellow transparent solution. The components and proportions of the test solution are: potassium ferricyanide, and its content is 10g / L; NaCl, and its content 5.0g / L; the balance is deionized water.

[0025] The preparation method of the test solution for the above-mentioned rapid detection of the corrosion resistance of tin-plated steel sheets comprises the following steps:

[0026] 1) Take or weigh 10g of potassium ferricyanide and 5.0g of NaCl respectively according to th...

Embodiment 2

[0033] Embodiment 2, the size of the detected tinned steel plate samples is 100mm*100mm, the grade is MRT4-CA, the steel plate thickness is 0.2mm, and the tin coating thickness of the tinned steel plate is respectively 5.6g / m 2 , 8.4g / m 2 , 11.2g / m 2 , respectively prepare three groups of samples of the tinned steel plate to be tested with the same tin coating thickness.

[0034] A test solution for quickly detecting the corrosion resistance of tin-plated steel sheets. The test solution is a yellow transparent solution. The components and proportions of the test solution are: potassium ferricyanide, and its content is 10g / L; NaCl, and its content 5.0g / L; the balance is deionized water.

[0035] The preparation method of the test solution for the above-mentioned rapid detection of the corrosion resistance of tin-plated steel sheets comprises the following steps:

[0036] 1) Take or weigh 10g of potassium ferricyanide and 6.0g of NaCl respectively according to the proportion;...

Embodiment 3

[0043] Embodiment 3, the size of the detected tinned steel plate samples is 100mm*100mm, the grade is MRT4-CA, the steel plate thickness is 0.2mm, and the tin coating thickness of the tinned steel plate is respectively 5.6g / m 2 , 8.4g / m 2 , 11.2g / m 2 , respectively prepare three groups of samples of the tinned steel plate to be tested with the same tin coating thickness.

[0044] A test solution for quickly detecting the corrosion resistance of tin-plated steel sheets. The test solution is a yellow transparent solution. The components and proportions of the test solution are: potassium ferricyanide, and its content is 10g / L; KCl, and its content 5.0g / L; the balance is deionized water.

[0045] The preparation method of the test solution for the above-mentioned rapid detection of the corrosion resistance of tin-plated steel sheets comprises the following steps:

[0046] 1) Take or weigh 10g potassium ferricyanide and 5.0g KCl respectively according to the proportioning ratio...

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Abstract

The invention relates to a test solution and a detection method for quickly testing the corrosion resistance of a tin-plated steel plate. A problem that the corrosion resistance of existing tin-platedsteel plates is difficult to detect quickly and accurately is mainly solved. The test solution for rapidly detecting the corrosion resistance of the tin-plated steel plate is a yellow transparent solution, and the test solution comprises 5-15 g / L of a color developer, 2.0-7.0 g / L of an accelerant, and the balance of deionized water; the color developer is potassium ferricyanide; and the accelerant is one or more of sodium chloride, potassium chloride, magnesium chloride and ammonium chloride. The detection method has the advantages of simplicity in operation, and high detection sensitivity.

Description

technical field [0001] The invention relates to a detection technology for the surface of tinned steel sheets, in particular to a test solution for rapidly detecting the corrosion resistance of tinned steel sheets and a detection method thereof, belonging to the field of detection of metal material surfaces. Background technique [0002] Tin-plated steel sheet is a cold-rolled low-carbon thin steel sheet or steel strip coated with pure tin on one or both sides. It combines the strength and formability of steel with the non-toxicity, corrosion resistance, solderability and beautiful appearance of tin. Among a kind of material, it is widely used in food, chemical industry, electronics, home appliances, decoration and other fields at home and abroad. Tinplate itself is a product with complex production process, high technical level, great manufacturing difficulty and very strict quality requirements. Corrosion resistance is an important indicator to distinguish high-end and lo...

Claims

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Application Information

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IPC IPC(8): G01N17/00
CPCG01N17/006
Inventor 尚元艳陆伟星王鑫艳刘欣
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD