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Ferro-molybdenum sample and preparation method thereof, and method for determining content of components in ferro-molybdenum alloy

A ferromolybdenum alloy and ferromolybdenum technology, which is applied in the field of composition analysis, can solve the problems of inaccurate analysis of ferromolybdenum composition, achieve the effect of improving cumbersome detection steps, long and accurate detection cycle, and avoiding waste and loss

Active Publication Date: 2020-12-08
SGIS SONGSHAN CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the embodiment of the present application is to provide a ferromolybdenum sample and its preparation method, and a method for determining the content of components in the ferromolybdenum alloy, which aims to improve the existing problem of inaccurate analysis of the ferromolybdenum composition

Method used

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  • Ferro-molybdenum sample and preparation method thereof, and method for determining content of components in ferro-molybdenum alloy
  • Ferro-molybdenum sample and preparation method thereof, and method for determining content of components in ferro-molybdenum alloy
  • Ferro-molybdenum sample and preparation method thereof, and method for determining content of components in ferro-molybdenum alloy

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preparation example Construction

[0036] A method for preparing a ferromolybdenum sample, the ferromolybdenum sample is suitable for determining the content of molybdenum, phosphorus, silicon, tin or copper in the ferromolybdenum alloy by X-ray fluorescence melting method, and the preparation method comprises:

[0037] Add anhydrous lithium tetraborate, ferromolybdenum, sodium nitrate and lithium carbonate into the container; then add a release agent for the first time for pre-oxidation treatment;

[0038] Perform first-stage melting followed by cooling to room temperature;

[0039] The second stage of melting is performed after the second release agent is added, followed by cooling.

[0040] Further, in some embodiments, the container needs to be pretreated, including:

[0041] Add lithium tetraborate into the container, then heat-treat at 950±20°C for 180-200s, take out the container and rotate it to hang on the wall, after 30-50s, heat it at 950±20°C for 30-50s, then take out the container and rotate it ag...

Embodiment 1

[0096] This embodiment provides a ferromolybdenum sample, which is mainly prepared through the following steps:

[0097] 1. Preparation of chemical reagents

[0098] Unless otherwise stated in the analysis, the approved reagents of analytical grade and the third-grade water in accordance with GB / T6682 were used.

[0099] Anhydrous lithium tetraborate: solid.

[0100] Lithium carbonate: solid.

[0101] Sodium nitrate: solid.

[0102] Lithium bromide solution (1000g / L): Slowly add 100g of lithium bromide solid into a beaker pre-filled with 40mL of distilled water (stir while adding the reagent), stir for 2-3min after adding the reagent, add 50mL of water, and continue to stir until the reagent is completely Dissolve, cool to room temperature, dilute with water to 100mL, store in a reagent bottle for later use.

[0103] 2 Instruments and utensils

[0104] X-ray fluorescence spectrometer; high-frequency melting furnace; platinum-yellow crucible (material 95%Pt-5%Au); crucible...

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Abstract

The invention relates to the field of component analysis, in particular to a ferro-molybdenum sample, a preparation method thereof and a method for determining the content of components in ferro-molybdenum. The preparation method of the ferromolybdenum sample comprises the following steps: adding anhydrous lithium tetraborate, ferromolybdenum, sodium nitrate and lithium carbonate into a container;then, adding a release agent for the first time for pre-oxidation treatment; carrying out first-stage melting, and then cooling to room temperature; and after the release agent is added for the second time, performing second-stage melting, and then performing cooling. In the process of preparing the ferromolybdenum sample, the release agent is added twice at different moments, so that the total use amount of the release agent can be reduced, and the waste and loss of the release agent are avoided; the problems of cracking and difficulty in demolding due to local excess of the release agent caused by one-time addition of the release agent are solved; meanwhile, the sample is not easy to crack.

Description

technical field [0001] The present application relates to the field of component analysis, in particular, to a ferromolybdenum sample, a preparation method thereof, and a method for determining component content in a ferromolybdenum alloy. Background technique [0002] Ferromolybdenum is an alloy of molybdenum and iron. It is mainly used as a molybdenum additive in steelmaking. Ferromolybdenum contains a certain amount of impurity elements such as phosphorus, copper, and silicon, which have certain effects on the properties of steel, and their content is limited in technical conditions. Therefore, it is necessary to analyze the composition of impurity elements in ferromolybdenum. [0003] For example, the prior art discloses the use of X-ray fluorescence to analyze the components in ferromolybdenum, but there are problems in the prior art that the measurement results have large errors and inaccurate detection results. Contents of the invention [0004] The purpose of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/223G01N23/2202
CPCG01N23/223G01N23/2202
Inventor 邢文青王岩肖命冬曾赞喜吴超超黄波黄合生曾霞宁安宁赵岩罗惠君
Owner SGIS SONGSHAN CO LTD
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