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A kind of analysis method of chemical composition in aluminum-molybdenum alloy

一种铝钼合金、化学成分的技术，应用在铝钼合金中化学成分的分析领域，能够解决没有同时测定等问题，达到准确度高、精密度好、应用效果良好的效果

Inactive Publication Date: 2016-03-09
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the above-mentioned technologies, the present invention provides an analysis method of chemical composition in an aluminum-molybdenum alloy, the present invention adopts inductively coupled plasma atomic emission spectrometry , using an inductively coupled plasma emission spectrometer to test the sample, which solves the problem that there is no analytical method for the simultaneous determination of aluminum, molybdenum, iron, and silicon in aluminum-molybdenum alloys. The present invention has the characteristics of accurate results and good application effects , suitable for a wide range of promotion and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 2

[0139] 1) The parameter settings for using this instrument are:

[0140] Power: 1.4KW; plasma gas flow: 17L / min; auxiliary gas flow: 0.50L / min; atomizing gas flow: 0.90L / min; sample flow: 1.6mL / min; stabilization time: 20s; sample lifting time : 15s; Nebulizer cleaning time: 10s; Number of repeated measurements: 1 time.

[0141] 2) Test method

[0142] Accurately weigh 0.2000g of the sample in an Erlenmeyer flask, moisten it with water, add 10mL sulfuric acid and 10mL nitric acid successively, rinse the bottle wall with water, and heat it to dissolve at low temperature. After dissolving and cooling to room temperature, transfer and dilute to a 250mL volumetric flask. Make a blank solution along with the sample.

[0143] The prepared working curve standard solution is as follows, the unit is mg / mL:

[0144] Standard sample number AlMoFeSi

[0145] (1) 180.00220.000.350.35

[0146] (2) 154.00246.000.600.60

[0147] (3) 141.00256.000.900.90

[0148] Under the selected conditions, measure th...

specific Embodiment 3

[0149] 1) The parameter settings for using this instrument are:

[0150] Power: 1.3KW; Plasma gas flow rate: 16L / min; Auxiliary gas flow rate: 0.3L / min; Atomizing gas flow rate: 0.80L / min; Sample flow rate: 1.5mL / min; Stabilization time: 25s; Sample lifting time : 20s; Nebulizer cleaning time: 8s; Number of repeated measurements: 2 times.

[0151] 2) Test method

[0152] Accurately weigh 0.0990g of the sample in an Erlenmeyer flask, moisten it with water, add 5mL sulfuric acid and 3mL nitric acid successively, rinse the bottle wall with water, and heat to dissolve at low temperature. After dissolving and cooling to room temperature, transfer and dilute to a 250mL volumetric flask. Make a blank solution along with the sample.

[0153] The prepared working curve standard solution is as follows, the unit is mg / mL:

[0154] Standard sample number AlMoFeSi

[0155] (1) 170.00235.000.100.10

[0156] (2) 149.00251.000.500.50

[0157] (3) 136.00260.000.750.75

[0158] Under the selected conditio...

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PUM

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Abstract

An analysis method for chemical components in an aluminum-molybdenum alloy, which relates to a material analysis and testing technology. The present invention solves the problem that currently there is no For the problem of the analytical method for the simultaneous determination of aluminum, molybdenum, iron, and silicon in aluminum-molybdenum alloys, the correlation coefficients of each spectral line of the method established by the present invention are all above 0.995, and the detection limit is below 0.01%. The relative standard of 10 times The deviation is less than 1%. Furthermore, the present invention has good precision and low detection limit, can meet the needs of analysis and testing, and is suitable for wide-scale popularization and application.

Description

【Technical field】 [0001] The invention relates to a material analysis and testing technology, in particular to an analysis method for chemical components in an aluminum-molybdenum alloy. 【Background technique】 [0002] It is known that aluminum and molybdenum, as the alloying elements of titanium alloys, have a great influence on the performance of titanium alloys. In the production of titanium alloys, the content of aluminum and molybdenum must be strictly controlled and controlled. In the production of titanium alloys, due to Molybdenum has a high melting point (melting point is 2620°C), and it is difficult to add directly to smelting, while the melting point of aluminum-molybdenum master alloy is similar to that of pure iron. Therefore, the introduction of aluminum and molybdenum is mainly by adding a certain amount of different grades. Aluminum-molybdenum alloys are widely used as raw materials for smelting titanium alloys containing Al and Mo. The difference in the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/73G01N1/28G01N1/44
Inventor 杜米芳
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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