Method for measuring content of stibium in steel

A determination method and content technology, applied in the direction of measuring devices, material analysis through electromagnetic means, instruments, etc., can solve the problems of environmental and human harm, slow analysis speed, many interference factors, etc., and achieve less interference factors and high accuracy , the effect of low determination limit

Inactive Publication Date: 2015-11-11
INNER MONGOLIA BAOTOU STEEL UNION
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Problems solved by technology

[0004] The above method has the disadvantages of using more chemical reagents, harmful

Method used

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  • Method for measuring content of stibium in steel
  • Method for measuring content of stibium in steel

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Embodiment Construction

[0022] The specific embodiment of the present invention is described below in conjunction with accompanying drawing:

[0023] The method steps of this specific embodiment are as figure 1 as shown,

[0024] Step 1: Prepare sample solution

[0025] Take three standard samples, namely, carbon steel material 229, 5CrMnMo material 245, 17MnVNbYSBC11247-2007 standard samples, weigh 0.1000g of each standard sample in a polytetrafluoroethylene beaker, add 15-25mL of salt and nitric acid mixed acid , Salt-nitrate mixed acid is prepared from hydrochloric acid, nitric acid, and pure water at a volume ratio of 1:1:3. Heat and dissolve 2-3mL of hydrofluoric acid, transfer it to a plastic volumetric flask after cooling, and dilute to the 100mL mark with pure water. Shake well, hydrochloric acid is ρ1.19, superior grade pure hydrochloric acid, nitric acid is ρ1.42, superior grade pure nitric acid, hydrofluoric acid is ρ1.13, superior grade pure hydrofluoric acid, add and dilute with 1000μg...

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Abstract

The invention discloses a method for measuring the content of stibium in steel and belongs to the field of metallurgical analysis methods. The method for measuring the content of stibium in steel aims at overcoming the defects that in the prior art, chemical reagents used for measuring the content of stibium in steel are more, harm is caused to the environment and the human body, interference factors are more, and the analysis speed is low. The method includes the following steps that firstly, a sample solution is prepared; secondly, a stibium working curve standard solution is prepared; thirdly, the content of stibium is measured. Chemical reagents used in the method are less, no harm is caused to the environment and testers, interference factors are less, a sample can be directly loaded on a machine to be measured after dissolving and being kept at constant volume, operation is easy, convenient and quick, the measuring range is 0.00001%-0.010%, the lower measuring limit is low, accuracy is high, and the method is suitable for measuring the content of stibium in steel in scientific research and production.

Description

technical field [0001] The invention specifically relates to a method for measuring antimony content in steel, which belongs to the field of metallurgical analysis methods. Background technique [0002] The role of antimony in steel is generally a harmful impurity. Antimony has obvious adverse effects on the strength and bending resistance of steel, resulting in high temperature brittleness of steel. Therefore, its amount is generally controlled very little, requiring less than 0.01%. With the improvement of the quality requirements for smelted steel, it is one of the requirements for steel composition analysis to quickly and accurately provide the content of the harmful element antimony in steel, so as to achieve the purpose of more accurately controlling the smelting composition. [0003] The traditional analysis methods of antimony content in steel are photometric methods, such as rhodamine-benzene extraction photometry, malachite green-benzene extraction photometry, cry...

Claims

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Application Information

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IPC IPC(8): G01N27/62G01N27/626
Inventor 薛玉兰王宴秋刘钢耀刘建华
Owner INNER MONGOLIA BAOTOU STEEL UNION
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