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Full-elemental analysis method for stainless steel sample

An analysis method, an all-element technology, applied in the fields of analyzing materials, material analysis using wave/particle radiation, measuring devices, etc. Effect

Active Publication Date: 2012-02-22
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Claims
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Problems solved by technology

The accuracy of direct-reading spectroscopic analysis of chromium-nickel alloy elements can only meet the general requirements, and X-ray fluorescence analysis can meet the requirements of the accuracy of chromium-nickel alloy element analysis in stainless steel, but due to the long analysis time, it cannot be analyzed in front of the furnace. play a role in

Method used

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  • Full-elemental analysis method for stainless steel sample
  • Full-elemental analysis method for stainless steel sample

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Embodiment

[0013] Example: Using the sample preparation conditions of the milling machine speed of 300r / min and the feed speed of 250mm / min, the surface of the sample for analysis was processed.

[0014] Put the stainless steel sample processed through the above steps into an X-ray fluorescence analyzer for analysis of chromium, nickel, and iron elements (this analysis process is automatically analyzed by the X-ray fluorescence analyzer), and the tube pressure of the X-ray fluorescence analyzer The tube flow analysis condition is 50kV / 50mA, the fixed channel is used to analyze chromium and nickel elements, and the scanning channel is used to analyze iron-based elements. The analysis time of X-ray fluorescence instrument for chromium, nickel and iron elements is 20 seconds respectively. The working curve, the drawing process of the working curve is a known technology, and will not be described in detail in this embodiment, that is, a series of standard samples will absorb the intensity u...

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Abstract

The invention relates to a full-elemental analysis method for a stainless steel sample, and belongs to the field of metallurgical analysis. According to the method, a direct reading spectrometry method and a X-ray fluorescence analysis method are respectively adopted to analyze elements of C, Si, Mn, P, S, Cu, Al, Mo, V, Ti, Co, As, Sn and Pb; the analysis result of the direct reading spectrometry method and the analysis result of the X-ray fluorescence analysis method are subjected to a correlation treatment; concentration input ports corresponding to the elements of C, Si, Mn, P, S, Cu, Al,Mo, V, Ti, Co, As, Sn and Pb are added to a X-ray fluorescence analyzer; a direct reading spectrometer is adopted to analyze the elements of C, Si, Mn, P, S, Cu, Al, Mo, V, Ti, Co, As, Sn and Pb; theX-ray fluorescence analyzer is adopted to analyze the elements of Cr, Ni and Fe; the direct reading spectrometer transmits the analysis result to the X-ray fluorescence analyzer by network to performinterference correction calculations of the elements of Cr, Ni and Fe; the full-elemental analysis result of the stainless steel sample is reported after all the data are merged. With the present invention, the full elements of the stainless steel sample can be rapidly analyzed, and the analysis time is 5 minutes.

Description

technical field [0001] The invention belongs to the field of metallurgical analysis, and in particular relates to a method for analyzing all elements of a stainless steel sample. Background technique [0002] For the sample analysis of stainless steel smelting, direct reading spectroscopic analysis and X-ray fluorescence analysis are currently used. The accuracy of direct-reading spectroscopic analysis of chromium-nickel alloy elements can only meet the general requirements, and X-ray fluorescence analysis can meet the requirements of the accuracy of chromium-nickel alloy element analysis in stainless steel, but due to the long analysis time, it cannot be analyzed in front of the furnace. play a role in. [0003] If we can combine the characteristics of rapid analysis of all elements by direct reading spectroscopy and high accuracy of analysis of high-content alloy elements by X-ray fluorescence method, we can quickly and accurately analyze all elements in stainless steel, ...

Claims

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Application Information

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IPC IPC(8): G01N23/223G01N21/25
Inventor 芦飞曹吉祥郑效东张爽王瑛
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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