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Method for measuring rare earth component in rare earth magnesium alloy

A rare earth magnesium and alloy technology, applied in the field of iron and steel metallurgy analysis, can solve the problem of no standard for measuring the rare earth content of rare earth magnesium alloys, etc.

Inactive Publication Date: 2010-06-23
ANGANG STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the determination methods of the total amount of rare earth are mainly photometric method and gravimetric method, and there is no standard for the determination of rare earth content in rare earth magnesium alloys.

Method used

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  • Method for measuring rare earth component in rare earth magnesium alloy
  • Method for measuring rare earth component in rare earth magnesium alloy
  • Method for measuring rare earth component in rare earth magnesium alloy

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Experimental program
Comparison scheme
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Embodiment Construction

[0013] 1. Method summary

[0014] Dissolve the sample with nitric acid and hydrofluoric acid, fume with perchloric acid, dilute to a certain volume, introduce the atomized solution into the inductive plasma atomic emission spectrometer, measure the spectral line intensity of the element to be measured, and measure it according to the known concentration of the standard substance The intensity of the spectral line is calculated to obtain the concentration of the corresponding element of the substance to be measured.

[0015] 1. Main instruments

[0016] 1.1 IRIS Intrepid II high-resolution, high-sensitivity full-spectrum direct-reading inductively coupled plasma emission spectrometer from American Thermo Company; TEVA software (version: 1.5.0).

[0017] 1.2 Instrument measurement conditions:

[0018] The high-frequency generator power is 1150W, the auxiliary gas flow rate is 0.5L / min, the nebulizer pressure is 30psi, the peristaltic pump speed is 130rpm, the number of repetit...

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Abstract

The invention relates to the technical field of ferrous metallurgical analysis, and discloses a method for measuring a rare earth component in a rare earth magnesium alloy. The method comprises the following steps: dissolving a sample through a nitric acid and a hydrofluoric acid; fuming the sample through a perchloric acid; diluting the sample to a certain volume; introducing atomization solution into an inductively coupled plasma atomic emission spectrometer; measuring the intensity of a spectral line to be tested; and calculating the concentration of the corresponding element of the substance to be tested according to the intensity of the spectral line which is measured by the standard substance at known concentration. The method has the advantages of conveniently, quickly and accurately analyzing the rare earth component in the rare earth magnesium alloy and ensuring smooth production.

Description

technical field [0001] The invention relates to the technical field of iron and steel metallurgy analysis, and relates to a method for measuring rare earth components in rare earth magnesium alloys. Background technique [0002] Rare earth is a good deoxidizing and desulfurizing agent in steel. It can eliminate or weaken the influence of many harmful impurities in steel, and can change the shape and analysis status of inclusions in steel, thereby improving the quality of steel. Adding rare earths to stainless heat-resistant steel can improve hot workability, and adding rare earths to structural steel can improve plasticity and toughness, and weaken its temper brittleness. Rare earth elements are important components of ductile iron. [0003] Rare earths are easy to combine with oxygen, sulfur, lead and other elements to form compounds with high melting points. Therefore, adding rare earths to molten steel can purify steel. [0004] Since the metal atomic radius of rare ear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/73
Inventor 康宝军宋立伟赵云霞单桂艳张健赵竞泽
Owner ANGANG STEEL CO LTD
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