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Analysis method for determining primary and secondary components in composite vanadium-nitrogen alloy

A vanadium-nitrogen alloy and analysis method technology, which is applied in the field of ICP-AES analysis, can solve the problems of cumbersome operation, long analysis process, and large consumption of reagents, and achieve the effect of less operation steps, saving analysis time and being easy to master

Inactive Publication Date: 2020-02-21
NANJING IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The analysis of various elements of compound vanadium nitrogen usually adopts traditional wet chemical analysis methods, such as: Determination of V-ferrous ammonium sulfate titration method, determination of Si-potassium fluorosilicate precipitation-sodium hydroxide titration method, determination of Mn-high Chloric acid oxidation-ferrous titration, etc. These methods are cumbersome to operate, have a long analysis process and consume a large amount of reagents

Method used

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  • Analysis method for determining primary and secondary components in composite vanadium-nitrogen alloy
  • Analysis method for determining primary and secondary components in composite vanadium-nitrogen alloy
  • Analysis method for determining primary and secondary components in composite vanadium-nitrogen alloy

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Embodiment 1

[0021] An analytical method for determining primary and secondary components in a composite vanadium-nitrogen alloy is characterized in that it comprises the following steps:

[0022] 1) Grinding:

[0023] The composite vanadium-nitrogen alloy samples were ground with a grinding machine. According to experimental analysis, when it is ground to pass 180 mesh (particle size 0.08mm), the bonding effect with boric acid is better, showing that the surface of the sample is smooth and not easy to fall off.

[0024] 2) Tablet:

[0025] Using boric acid as a binder, the composite vanadium-nitrogen alloy sample was subjected to X-ray fluorescence compression treatment.

[0026] 3) Qualitative analysis:

[0027] Use the ELTER nitrogen analyzer to analyze the N in the sample, and the measured N mass fraction is about 20%-26%; use the Uniquant software of the Thermo Fisher ARL9900 fluorescence spectrometer to conduct semi-quantitative analysis on the composite vanadium nitrogen sample, ...

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Abstract

The invention discloses an analysis method for determining primary and secondary components in composite vanadium-nitrogen alloy. According to the analysis method, a powdery composite vanadium-nitrogen sample and a sodium peroxide flux are added into a corundum crucible, a high-temperature muffle furnace is used for melting, hydrochloric acid is used for removal, a stable solution is formed and used for an ICP-AES method. The method has the advantages of being rapid, accurate and reliable, can help improving the automatic degree of metallurgical analysis instruments, and can be popularized tocomposite vanadium-nitrogen alloy acceptance check of all steel plants and process control of composite vanadium-nitrogen alloy production enterprises in the metallurgical industry.

Description

technical field [0001] The invention belongs to the technical field of ICP-AES method analysis, in particular to an alkali fusion method-ICP-AES method analysis technology for determining the primary and secondary components of a composite vanadium-nitrogen alloy. Background technique [0002] Compound vanadium nitrogen, as a new type of excellent steelmaking additive, plays an increasingly important role in the production of vanadium-containing steel. Composite vanadium nitrogen can improve the comprehensive mechanical properties of steel such as wear resistance, corrosion resistance, toughness, strength, ductility, hardness and thermal fatigue resistance, and make the steel have good weldability, and can eliminate inclusions extension etc. [0003] The analysis of various elements of compound vanadium nitrogen usually adopts traditional wet chemical analysis methods, such as: determination of V-ferrous ammonium sulfate titration method, determination of Si-potassium fluor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/73G01N1/28
CPCG01N21/73G01N1/28G01N1/2813G01N1/286G01N2001/2866
Inventor 叶晓晴赵宁肖师杰吴子红
Owner NANJING IRON & STEEL CO LTD
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