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Method for detecting weight of fingerprint resistant film of fingerprint-resistant electro-galvanized sheet

An electro-galvanized sheet and detection method technology, applied in the direction of removing certain component weighing, measuring devices, material weighing, etc., can solve problems such as difficult to find reagents, achieve accurate quantitative determination, and solve the effects of influence

Inactive Publication Date: 2011-02-09
SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the good solvent resistance of the anti-fingerprint film, it is difficult to find a reagent that can only remove the anti-fingerprint film without corroding the zinc layer

Method used

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  • Method for detecting weight of fingerprint resistant film of fingerprint-resistant electro-galvanized sheet
  • Method for detecting weight of fingerprint resistant film of fingerprint-resistant electro-galvanized sheet

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specific Embodiment approach

[0025] 1 Reagents and materials

[0026] Note: During the analysis process, reagents of analytical grade should be used for preparing the test solution, and distilled water or deionized water should be used for the water used.

[0027] 1.1 Concentrated hydrochloric acid, ρ≈1.18g / mL.

[0028] 1.2 Hexamethylenetetramine, C 6 h 12 N 4 , Corrosion inhibitor, used to protect the steel base from acid corrosion when dissolving the coating.

[0029] 1.3 Zinc removal solution, add 500mL of hydrochloric acid (1.1) into a beaker containing 500mL of water and 3.5g of hexamethylenetetramine (1.2), and shake well.

[0030] 1.4 Closing material, acid-resistant paint or acid-resistant tape.

[0031] 1.5 Zinc standard solution, 10g / L, accurately weigh 10g of high-purity zinc (purity not less than 99.99%), accurate to 0.001g, dissolve in 100mL hydrochloric acid (1.1), transfer the solution into a 1000mL volumetric flask after cooling, Dilute to volume and shake well.

[0032] 1.6 Deterge...

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Abstract

The invention relates to a fingerprint resistant film, in particular to a method for detecting the weight of the fingerprint resistant film. The method for detecting the weight of the fingerprint resistant film of a fingerprint-resistant electro-galvanized sheet comprises the following steps of: preparing dezincing solution and zinc standard solution; sampling; sample processing; detecting the total weight of a galvanized coating; detecting galvanized amount; and working out the weight of the fingerprint resistant film. By the method, the weight of the fingerprint resistant film can be directly, correctly and quickly detected, and the detection is not influenced by the change of fingerprint resistant raw material components and a production process.

Description

technical field [0001] The invention relates to an anti-fingerprint film, in particular to a method for detecting the weight of an anti-fingerprint film. Background technique [0002] Anti-fingerprint film is an organic coating, coating a layer of anti-fingerprint film on electro-galvanized sheet can effectively improve its corrosion resistance and stain resistance. If the anti-fingerprint film is too thin, the corrosion resistance of the product will be poor; if it is too thick, the processability and conductivity of the product will be poor, which cannot meet customer requirements and waste costs, so the amount of coating film needs to be tested , to control within a certain range. At present, there is no public report on the weight detection of the fingerprint-resistant film. It is understood that the detection of the weight of the anti-fingerprint film at home and abroad usually adopts the fluorescence method. The weight of the anti-fingerprint film of the sample is o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04G01N5/00
Inventor 樊志刚
Owner SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
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