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Method for analyzing chemical components in medium-low alloy steel by adopting virtual curve method

A low-alloy steel and virtual curve technology, which is applied in the direction of material analysis, material analysis, and scientific instruments using wave/particle radiation, can solve the problems of long analysis period, detection of low-alloy steel composition, cumbersome operation, etc., and shorten the analysis time. Cycle, the effect of reducing consumption

Inactive Publication Date: 2015-06-03
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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Problems solved by technology

If the problem of spectral standard samples can be solved, the application of fluorescence spectrometer will be greatly expanded, and the shortcomings of long analysis period, cumbersome operation, and high test cost can be avoided, and the chemical components in various medium and low alloy steels can be quickly analyzed to solve the problem of new grades. , Composition detection of low alloy steel

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  • Method for analyzing chemical components in medium-low alloy steel by adopting virtual curve method
  • Method for analyzing chemical components in medium-low alloy steel by adopting virtual curve method
  • Method for analyzing chemical components in medium-low alloy steel by adopting virtual curve method

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Embodiment Construction

[0035] The virtual curve method is used to quantitatively analyze 38CrMoAl and carbon steel BAS substances. The specific process is as follows:

[0036] (1) Set up the X-ray fluorescence spectrometer, adjust the instrument to adapt to the analysis of medium and low alloy steel, and set the parameters as follows:

[0037] Test equipment: Shimadzu XRF-1800 X-ray fluorescence spectrometer, 40Kw rhodium target;

[0038] Condition setting: the diameter of the mask is 20mm, Cr and elements with atomic numbers greater than Cr, the voltage and current is 60kVx55mA, P and elements with atomic numbers less than P, the voltage and current are 30kVx110mA, the specific parameters are shown in Table 1;

[0039] (2) Place the prepared fluorescent sample in the sample box, measure the standard substance according to the above conditions, find out the matrix correction between elements and the correlation coefficient of spectral line overlapping interference, and determine the content of each ...

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Abstract

The invention aims at providing a method for analyzing chemical components in medium-low alloy steel by adopting a virtual curve method. The method comprises the following steps: exciting characteristic spectrum lines of elements to be detected in an X ray, and quantifying the chemical components in the medium-low alloy steel by utilizing the intensity of the characteristic spectrum lines and combining with a sensitivity curve of a virtual single standard. The method provided by the invention has the advantages that the elements in the medium-low alloy steel are analyzed by utilizing the virtual standard method on a fluorescence spectrometer for the first time, single-standard sensitivity coefficient can be randomly drawn by utilizing the intensity of the characteristic spectrum lines of the elements with the contents being 1% in the medium-low alloy steel, and under the premise without standard samples with same marks, the chemical components in the medium-low alloy steel also can be quantified.

Description

technical field [0001] The invention belongs to the field of chemical composition analysis of metal materials, and in particular provides a chemical composition analysis method suitable for smelting, forging, raw material, semi-finished product inspection and intermediate process quality control of medium and low alloy steel. Background technique [0002] At present, the methods for analyzing the chemical composition of medium and low alloy steel mainly include wet chemical method, inductively coupled plasma spectrometry, fluorescence spectrometry and so on. [0003] The wet chemical method needs to select different methods for different elements to analyze the elements of medium and low alloy steel one by one; if the inductively coupled plasma spectrometry is used, the sample needs to be chemically pretreated and then measured by an ICP spectrometer. All the schemes have the disadvantages of long analysis period, cumbersome operation and high test cost. [0004] Fluorescen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/223
Inventor 闫秀芬唐侠暴云飞刘睿杨丽
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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