Glow spectrometer alloy sample and preparation method thereof

A glow spectrometer and alloy technology, which is applied in the preparation of test samples, electrical excitation analysis, material excitation analysis, etc. Vacuum requirements, good testing foundation, simple sample preparation process

Inactive Publication Date: 2015-01-07
HEBEI IRON AND STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the following methods are mainly used for alloys: (1) The traditional wet chemical analysis method is used to analyze the main elements in the alloy. This method is cumbersome to operate and has a long detection cycle, which cannot meet the actual needs of steelmaking production.
(2) ICP spectrometer is used to detect trace elements in the alloy. This method has a complicated sample dissolution method and a long detection cycle
(3) Use a carbon-sulfur meter to detect the carbon and sulfur elements of the alloy. Different alloys need to be analyzed with different fluxes, and there are certain errors in the analysis precision and accuracy.
(4) The recently adopted X-ray fluorescence spectrometry has the characteristics of wide analysis range, high precision, simplicity and quickness, and has been widely used in industrial analysis. However, due to the presence of a large number of other metals in the alloy, it will make the platinum crucible It is severely eroded, which limits the application of X-ray fluorescence spectrometry. At the same time, X-ray fluorescence spectrometry cannot detect the content of carbon elements, and a carbon-sulfur meter is required to detect the carbon content.
None of the above detection methods can simultaneously detect the content of major and trace elements of concern in the alloy

Method used

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  • Glow spectrometer alloy sample and preparation method thereof
  • Glow spectrometer alloy sample and preparation method thereof
  • Glow spectrometer alloy sample and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: The alloy sample of the glow spectrometer is prepared by the following specific sample preparation method.

[0016] (1) Use copper powder with a particle size of 300 mesh and a purity of 99.9999% as the binder;

[0017] (2) According to the ratio of binder: alloy = 8:1 (mass), mix the binder with the alloy powder; For more than 300 mesh;

[0018] (3) Use a mortar to fully mix the binder and the alloy, and the grinding time is 15 minutes;

[0019] (4) The alloy sample can be obtained by using a tablet press for tablet sample preparation, and the pressure selected for tablet pressing is 45 tons.

[0020] Table 1 is a list of vacuum degrees that can be achieved when the alloy samples obtained in this example are detected by a glow spectrometer.

[0021] Table 1: List of degrees of vacuum in Example 1

[0022]

Embodiment 2－5

[0023] Embodiment 2-5: The alloy sample of the glow spectrometer is prepared by the following specific sample preparation method.

[0024] The raw materials and their particle sizes shown in Table 2, and the process conditions shown were used.

[0025] Table 2: Raw materials and processes of Embodiment 2-5

[0026]

[0027] In Table 2, the raw material ratio refers to the mass ratio of the binder to the alloy.

[0028] See Table 3 for a list of the vacuum degrees that can be achieved when the alloy samples obtained in Examples 2-5 are detected by a glow spectrometer.

[0029] Table 3: List of vacuum degrees (Pa) of Examples 2-5

[0030]

[0031] Repeatability test and accuracy test:

[0032] (1) Using the sample preparation method in Example 2, 11 sample preparations were carried out on the silicon-manganese alloy standard sample GSB (2011-2), and the repeatability test and accuracy test were respectively carried out with a glow spectrometer. The test data are shown i...

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Abstract

The invention discloses a glow spectrometer alloy sample and a preparation method thereof. The glow spectrometer alloy sample is a laminate formed by alloy powder and binders, wherein the binders are copper powder and / or aluminum powder. The sample preparation process is simple, only pure copper powder and / or aluminum powder are / is used as the binders, and are / is fully mixed uniformly with alloy in appropriate mass ratio, a sample pressing machine is adopted for pressing and preparing the sample, and the sample preparation speed is high; a glow spectrometer detection method is adopted to detect all concerned elements in the alloy one time including carbon element, and different kinds of equipment are not required for detecting different elements in the alloy; when a glow spectrometer detects and analyzes the components, the vacuum degree is required to be less than 20Pa, and the contents of all elements can be accurately detected; and the vacuum degree requirement can be effectively met, and good detection basis can be provided for detection of chemical components of the alloy by the glow spectrometer.

Description

technical field [0001] The invention belongs to alloy chemical component analysis technology, in particular to an alloy sample for a glow spectrometer and a sample preparation method thereof. Background technique [0002] Alloys are important raw materials necessary for steelmaking production in iron and steel enterprises to improve the process and performance of steel. At present, the following methods are mainly used for alloys: (1) The traditional wet chemical analysis method is used to analyze the main elements in the alloy. This method is cumbersome to operate and has a long detection period, which cannot meet the actual needs of steelmaking production. (2) ICP spectrometer is used to detect trace elements in the alloy. This method has a complicated sample dissolution method and a long detection cycle. (3) A carbon-sulfur meter is used to detect the carbon and sulfur elements of the alloy. Different alloys need to be analyzed with different fluxes, and there are certai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/67G01N1/28
Inventor 刘洁葛晶晶杨慧贤禹青霄任玲玲李伟刘宏强安治国
Owner HEBEI IRON AND STEEL
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