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Vanadium-nitrogen alloy standard sample for chemical analysis and preparation method thereof

A standard sample, vanadium-nitrogen alloy technology, applied in the field of metallurgical analysis, can solve the problems that the accuracy of analysis results cannot be judged, the analysis method of vanadium-nitrogen alloy is difficult to master, etc., and achieve the effect of good uniformity, accurate value and convenient use

Active Publication Date: 2013-10-09
山东省冶金科学研究院有限公司
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  • Summary
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AI Technical Summary

Problems solved by technology

More and more attention is paid to the inspection of vanadium-nitrogen alloy products, but it is often difficult for analysts to master the analysis methods of vanadium-nitrogen alloys, and it is difficult to judge the accuracy of the analysis results. Therefore, we consider developing a standard sample of vanadium-nitrogen alloys. Its composition is relatively stable within a certain period of time, and the characteristic value of each composition of the sample is determined for the detection of vanadium nitrogen alloy products

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment 1

[0011] 1. Composition design: See Table 1 for the composition and content of chemical elements.

[0012] 2. Preparation method: Take alum-nitrogen alloy finished products, take samples to test that the content of each component meets the requirements in Table 1, and if the requirements are not met, take a new one or take several products and mix them according to the composition requirements until they meet the requirements.

[0013] Put the alum-nitrogen alloy balls that meet the composition requirements into a jaw crusher and crush them to 2mm; put the broken pieces into a disc mill at a speed of 500 rpm, stop the machine after 15 minutes, and pass the material through a 125μm sieve , put the sieve into the disc mill and repeat the operation. After five times of repeated operations, discard the remaining small amount of sieve; put all the sieve into a clean mixer and mix thoroughly. The sample is packed into glass bottles, 25g per bottle, because the vanadium nitrogen alloy ...

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Abstract

The invention discloses a vanadium-nitrogen alloy standard sample for chemical analysis and a preparation method of the vanadium-nitrogen alloy standard sample, belonging to the technical field of metallurgical analysis. The standard sample is a powdery solid substance with the granularity of less than or equal to 125 microns and comprises the following chemical elements in percentage by weight: 70-80wt% of V, 16-18wt% of N, 0.01-0.10wt% of Al, 0.01-0.10wt% of Cr, 0.001-0.005wt% of Mn, 0.001-0.005wt% of Ni, 0.01-0.1wt% of Si, less than or equal to 0.01 of Cu, 0.002-0.05wt% of Ca, 3-8wt% of C, 0.001-0.005wt% of S and 0.001-0.01wt% of P. The standard sample disclosed by the invention has good uniformity, is accurate in quantity value and convenient to use and can be used for solving the problem that no vanadium-nitrogen alloy determination standards are provided for enterprises.

Description

technical field [0001] The invention relates to a vanadium-nitrogen alloy standard sample for chemical analysis and a preparation method thereof, belonging to the technical field of metallurgical analysis. Background technique [0002] Vanadium-nitrogen alloy is a new alloy additive that can replace ferrovanadium for the production of microalloyed steel. The vanadium content is 77-81%, and the nitrogen content is 10.0%-18.0%, which is a vanadium alloy with a relatively high nitrogen content. Vanadium nitrogen alloys can be used in structural steel, tool steel, pipe steel, steel bars and cast iron. The application of vanadium-nitrogen alloys in high-strength low-alloy steels can effectively micro-alloy vanadium and nitrogen at the same time, promote the precipitation of carbon, vanadium and nitrogen compounds in steel, and more effectively play the role of precipitation strengthening and grain refinement. Adding vanadium nitride can improve comprehensive mechanical properti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28
Inventor 王兴强倪守生谭林青王向阳李青霞张莉高洪吉吴丽娟魏崇德
Owner 山东省冶金科学研究院有限公司
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