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Method for measuring content of aluminum, silicon and zinc in coating of aluminum-plated zinc plate

A technology of galvanizing and zinc content, which is applied in the field of inspection and testing, can solve the problems of many analytical procedures of chemical methods, various types of chemical agents, and strict requirements on the operation process, and achieve the effects of less dosage, high accuracy, and simplified procedures

Inactive Publication Date: 2012-07-11
ANGANG STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For a long time, chemical methods have been widely used to test and analyze the contents of various elements in the coating of galvanized steel sheets. Although the test results can meet the accuracy requirements, the chemical methods have many analysis procedures, long detection cycles, and a wide variety of chemical agents. The operation process requires strict requirements and is not conducive to environmental protection

Method used

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  • Method for measuring content of aluminum, silicon and zinc in coating of aluminum-plated zinc plate
  • Method for measuring content of aluminum, silicon and zinc in coating of aluminum-plated zinc plate
  • Method for measuring content of aluminum, silicon and zinc in coating of aluminum-plated zinc plate

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Experimental program
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Effect test

Embodiment 1

[0033] 1. Preparation before analysis:

[0034] Prepare reagents:

[0035] Prepare high-purity iron, absolute ethanol and hydrochloric acid with a bulk density of 1.19 g / ml.

[0036] Weigh 10 g of sodium hydroxide solid, add 100 ml of water, and mix to obtain a 10% by mass sodium hydroxide aqueous solution.

[0037] Prepare standard solutions:

[0038] a. Prepare a silicon standard solution with a concentration of 100 μg / ml: weigh 1.0698 g of silicon dioxide with a silicon weight percentage of 99.95% that has been burned at 1000 °C for 1 h in advance, cooled to room temperature in a desiccator, and placed in a solution containing 3 g of anhydrous In a platinum crucible of sodium carbonate, cover it with 1g of anhydrous sodium carbonate, first heat it at a low temperature, then heat it at a high temperature of 950°C until it is transparent, continue heating for 3 minutes, cool it, and frit it to the full depth with a plastic beaker filled with cold water, At room temperature...

Embodiment 2

[0068] 1. Preparation before analysis:

[0069] Prepare high-purity iron, absolute ethanol and hydrochloric acid with a bulk density of 1.19 g / ml.

[0070] Weigh 10 g of sodium hydroxide solid, add 100 ml of water, and mix to obtain a 10% by mass sodium hydroxide aqueous solution.

[0071] a. Prepare a silicon standard solution with a concentration of 100 μg / ml: weigh 1.0698 g of silicon dioxide with a silicon weight percentage of 99.9% after being burned at 1000°C for 2 hours in advance, and cool to room temperature in a desiccator, and place it in a solution containing 3 g of anhydrous In a platinum crucible of sodium carbonate, cover it with 2g of anhydrous sodium carbonate, first heat it at a low temperature, then heat it at a high temperature of 950°C until it becomes transparent, continue heating for 4 minutes, cool it, and frit it to the full depth with a plastic beaker filled with cold water, At room temperature, transfer to a 500ml container bottle and dilute with wa...

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Abstract

The invention provides a method for measuring the content of aluminum, silicon and zinc in the coating of an aluminum-plated zinc plate, comprising the following steps: dissolving a sample to be measured by hydrochloric acid and sodium hydroxide, introducing dissolved solution into an inductively coupled plasma atomic emission spectrometer, and automatically calculating and displaying the concentration of aluminum, silicon and zinc in the coating sample according to the spectral line intensity which is stored in the inductively coupled plasma atomic emission spectrometer of the standard aluminum, silicon and zinc solution with measured concentration. The method adopting chemical and physical analysis has greatly simplified processes, high analysis speed and high accuracy and is easy to master and operate. The linear correlation coefficient of the measured sample and the standard work curve is more than 0.999, the content of aluminum, silicon and zinc can be measured at the same time by dissolving the sample for one time, and reliable analysis data can be provided rapidly for the manufacturing plant. In addition, a few kinds of chemical agents is adopted, a small amount of the chemical agents is used, and the pollution of the medicament to the environment is reduced.

Description

technical field [0001] The invention belongs to the technical field of inspection and testing, and in particular relates to a method for measuring the contents of aluminum, silicon and zinc elements in the coating of an aluminum-zinc coated sheet. Background technique [0002] Aluminized zinc plate is made of precision cold-rolled steel strip as the substrate, zinc and aluminum alloy as auxiliary materials, and coated with advanced equipment and technology. Because of its high strength, beautiful surface and other excellent quality and performance, it is widely used Widely used in light steel keel, fire shutter door, civil chimney and pipe making and other industries. [0003] The galvanized sheet is a high value-added product newly developed by the cold rolling mill in recent years. The accuracy of the content of each element in the galvanized sheet directly determines the quality of the galvanized sheet. Therefore, it is particularly important to accurately test and contr...

Claims

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Application Information

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IPC IPC(8): G01N21/66
Inventor 单桂艳宋立伟陈克仲董玲康宝军梁勇宁伟
Owner ANGANG STEEL CO LTD
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