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Method for preparing silicon-aluminium-barium alloy sample wafer

A silicon-aluminum-barium and alloy technology is applied in the field of preparation of silicon-aluminum-barium alloy samples, which can solve problems such as damage to platinum alloy crucibles and inability to perform chemical analysis, and achieves the improvement of analysis speed, reduction of matrix effect and mineral effect, and avoidance of damage. Effect

Active Publication Date: 2014-12-03
TIANJIN IRON & STEEL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a method for preparing a silicon-aluminum-barium alloy sample to solve the technical problem that the platinum alloy crucible cannot be analyzed due to the alloying effect of the silicon-aluminum-barium alloy and the platinum alloy crucible in the known technology.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A preparation method of a silicon-aluminum-barium alloy sample, comprising the steps of:

[0014] 1) Accurately weigh 0.2000g of the sample and place it in a 150ml polytetrafluoroethylene beaker, add 10ml of distilled water and 1.000g of sodium hydroxide (premium pure), heat on a low-temperature electric heating plate, and cover the beaker with a watch glass during the reaction;

[0015] 2) After all the liquid in the beaker is evaporated to dryness, take it out and cool it slightly, rinse the watch glass with 5ml of distilled water, then rinse the watch glass with 5ml of nitric acid (analytical pure), 2ml of hydrochloric acid (analytical pure), put the beaker on a low-temperature stove and heat until Remove all the liquid in the beaker after evaporation;

[0016] 3) smash the solid in the beaker with a glass rod, move it into a platinum alloy crucible filled with 5.0000g lithium tetraborate (a special flux for X-ray fluorescence analysis) in advance, and mix well;

[...

Embodiment 2

[0022] A preparation method of a silicon-aluminum-barium alloy sample, comprising the steps of:

[0023] 1) Accurately weigh 0.3000g of the sample and place it in a 150ml polytetrafluoroethylene beaker, add 20ml of distilled water and 3.000g of sodium hydroxide (premium pure), heat on a low-temperature electric heating plate, and cover the beaker with a watch glass during the reaction;

[0024] 2) After all the liquid in the beaker is evaporated to dryness, take it out and cool it slightly, rinse the watch glass with 10ml of distilled water, then rinse the watch glass with 10ml of nitric acid (analytical pure), 5ml of hydrochloric acid (analytical pure), put the beaker on a low-temperature stove and heat to Remove all the liquid in the beaker after evaporation;

[0025] 3) smash the solid in the beaker with a glass rod, move it into a platinum alloy crucible filled with 10.0000g lithium tetraborate (a special flux for X-ray fluorescence analysis) in advance, and mix well;

[...

Embodiment 3

[0031] A preparation method of a silicon-aluminum-barium alloy sample, comprising the steps of:

[0032] 1) Accurately weigh 0.2000g of the sample and place it in a 150ml polytetrafluoroethylene beaker, add 10ml of distilled water and 3.000g of sodium hydroxide (premium pure), heat on a low-temperature electric heating plate, and cover the beaker with a watch glass during the reaction;

[0033] 2) After all the liquid in the beaker is evaporated to dryness, take it out and cool it slightly, rinse the watch glass with 5ml of distilled water, then rinse the watch glass with 10ml of nitric acid (analytical pure), 3ml of hydrochloric acid (analytical pure), put the beaker on a low-temperature stove and heat until Remove all the liquid in the beaker after evaporation;

[0034] 3) smash the solid in the beaker with a glass rod, move it into a platinum alloy crucible filled with 10.0000g lithium tetraborate (a special flux for X-ray fluorescence analysis) in advance, and mix well;

...

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Abstract

The invention relates to a method for preparing a silicon-aluminium-barium alloy sample wafer. The method comprises the following steps of: (1), weighing a certain amount of a silicon-aluminium-barium alloy sample, and dissolving the sample at low temperature by adding a sodium hydroxide solution; (2), carrying out acid addition neutralization treatment, converting metallic simple substances in silicon-aluminium-barium alloy into metallic compounds, and evaporating to dry the metallic compounds at low temperature; and (3), transferring sample compounds processed through the above steps into a platinum-gold alloy crucible pre-arranged with a certain amount of a fusing agent, adding a certain amount of a releasing agent, fusing the sample at high temperature for a certain time, and cooling and forming the sample to prepare the sample wafer to be measured by X-ray fluorescence spectrum. The sample preparing method disclosed by the invention is capable of preventing elementary substance elements from damaging the platinum-gold alloy crucible in the sample fusing process, effectively reducing a matrix effect and a mineral effect of a test sample, and effectively preventing the silicon-aluminium-barium alloy from destroying the platinum-gold alloy crucible; the prepared sample wafer is smooth and flat; with the help of advantages of an X-ray fluorescence spectrograph, analysis of chemical components of the silicon-aluminium-barium sample can be carried out rapidly and accurately; and the analysis speed is greatly increased.

Description

technical field [0001] The invention belongs to the technical field of analysis methods for chemical components of silicon-aluminum-barium alloys, and in particular relates to a method for preparing silicon-aluminum-barium alloy samples. Background technique [0002] Silicon-aluminum-barium alloy is a deoxidizer used in the iron and steel smelting process. Its function is to improve the shape of inclusions, reduce the content of oxide inclusions in molten steel and the content of gas elements in steel, and can effectively replace ordinary alloys and pure aluminum in the steelmaking process. final deoxygenation. The current national standards and industry standards use perchloric acid dehydration gravimetric method, EDTA titration method and barium sulfate gravimetric method for the analysis methods of Si, Al and Ba in silicon-aluminum-barium alloy, respectively. The operation steps of these methods are complicated. Analysis is slow. Many people have studied the determinati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N23/223G01N1/44
Inventor 杨觎边立槐王璐孙颖阎学会
Owner TIANJIN IRON & STEEL GRP