A melting sampling-X ray fluorescent spectrometry for determining primary and secondary components of ferromolybdenum alloy

A fluorescence spectrometry, molybdenum-iron alloy technology, applied in the field of fusion sample preparation-X-ray fluorescence spectrometry, to achieve the effects of easy to master, few operation steps, and short analysis period

Inactive Publication Date: 2019-02-19
NANJING IRON & STEEL CO LTD
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] So far, the existing technology has not been able to realize the technology that the powdered ferromolybdenum alloy is directly placed in a platinum crucible and melted into a melting furnace to form a glass sheet, and then analyzed by an X-ray fluorescence spectrometer

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A melting sampling-X ray fluorescent spectrometry for determining primary and secondary components of ferromolybdenum alloy
  • A melting sampling-X ray fluorescent spectrometry for determining primary and secondary components of ferromolybdenum alloy
  • A melting sampling-X ray fluorescent spectrometry for determining primary and secondary components of ferromolybdenum alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Establishment of working curve of X-ray fluorescence spectrometer

[0047] a: Select 6 standard samples of ferromolybdenum, and the content range should cover the content of the analysis sample. Weigh 25g of the standard sample and grind it with a vibrating mill for 30s, all of which can pass through a 180-mesh sieve. Accurately weigh 0.2500g of the ground standard sample into a porcelain crucible, add 2.2500g of mixed oxidant and 1.0000g of lithium tetraborate flux, and stir evenly. 8.0000g of lithium tetraborate flux and 0.250g of ammonium iodide mold release agent were weighed into a platinum crucible, stirred evenly with a glass rod, and the center was slightly concave. Slowly pour the mixed standard into the groove.

[0048] b: Put the above-mentioned crucible into the electric melting furnace with the programmed program, and about 25 minutes after the start button is clicked, a uniform and transparent glass sheet for analysis is prepared.

[0049] c: According ...

Embodiment 2

[0051] 1. Select 6 ferromolybdenum standard samples, the content range is shown in Table 1 below. Weigh 25g of the standard sample and grind it with a vibrating mill for 30s, all of which can pass through a 180-mesh sieve. Accurately weigh 0.2500g of the ground standard sample into a porcelain crucible, add 2.2500g of mixed oxidant and 1.0000g of lithium tetraborate flux, and stir evenly. 8.0000g of lithium tetraborate flux and 0.250g of ammonium iodide mold release agent were weighed into a platinum crucible, stirred evenly with a glass rod, and the center was slightly concave. Slowly pour the mixed standard into the groove.

[0052] Table 1 standard sample of molybdenum iron

[0053] serial number

name

Standard No.

Mo content / %

Cu content / %

P content / %

1

Ferromolybdenum

YSBC18605-08

55.78

0.63

0.154

2

Ferromolybdenum

YSBC37653-10

57.65

0.117

0.046

3

Ferromolybdenum

YSBC28631-2010

6...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a melting sampling-X ray fluorescent spectrometry for determining primary and secondary components of a ferromolybdenum alloy, which is used for the X-ray fluorescence spectrometer analyzing by adding a ferromolybdenum alloy powder sample, a mixed oxidant, and a flux into a platinum crucible, and directly melting the above components into a glass sheet by a melting furnace.Compared with the prior art, the method is few in operation steps, simple and clear, and easy to master. Most importantly, the step for preprocessing an alloy melting sheet is eliminated, the safetyproblems of corrosion, penetration, etc., when the platinum crucible contacts with the alloy at a high temperature. According to the melting sampling-X ray fluorescent spectrometry for determining theprimary and secondary components of the ferromolybdenum alloy, a six-station electric melting furnace is adopted, six alloy samples are analyzed in about 0.8h from sample weighing to result reporting, the corrosion probability of the crucible is zero, the analysis result of the sample meets the precision requirements in the relevant national chemical analysis standards, and the method can be applied to alloy inspection of the steel and iron enterprise, internal quality control and factory inspection of the alloy manufacturer.

Description

technical field [0001] The invention belongs to the technical field of X-ray fluorescence spectrum analysis, and in particular relates to a melting sample preparation-X-ray fluorescence spectrum analysis technology for determining the primary and secondary components of molybdenum-iron alloy. Background technique [0002] At present, the quality acceptance of ferromolybdenum alloys in most steel plants uses the lead molybdate gravimetric method to determine the content of the main element Mo, and the secondary elements Cu and P are analyzed by X-ray fluorescence or ICP, even for molybdenum-ferroalloy manufacturers. Although the chemical analysis method is a nationally recommended standard method, it has a long analysis period, many steps, and requires a large amount of chemical reagents. Therefore, with the acceleration of the production pace of modern enterprises and the development of high-quality products, instrumental analysis is used instead of chemical analysis. Theref...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/2202G01N23/223
CPCG01N23/2202G01N23/223
Inventor 潘宇洁赵宁汤兰兰刘素祥孙炜王一海王长军柳东徽
Owner NANJING IRON & STEEL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap