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Preparation method for sample used for rapid determination of chemical component in alloy slag charge

A technology for rapid determination of chemical composition, applied in the preparation of test samples, testing metal composition, material inspection products, etc. Easy-to-use effects

Inactive Publication Date: 2020-03-06
JIANGSU LONGDA SUPERALLOY MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the detection of alloy slag, the traditional method is to directly dissolve a large amount of mixed strong acid for a long time, and then use chemical analysis or ICP-AES, ICP-MS, AAS and other methods for wet detection. When processing, a large amount of strong acid and various redox, color and complexing agents are required to easily pollute the environment; the analysis cycle is long and cannot meet the large detection volume; the sampling volume is small, especially for alloy slag samples, which has poor representativeness and poor accuracy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A sample preparation method for rapid determination of chemical components in alloy slag comprises the following steps:

[0024] a. Select 200g of strip or granular alloy slag, with a diameter ranging from 0.5 to 20mm;

[0025] b. First add 10g of potassium hydroxide, 15g of sodium hydroxide and 10mL of saturated ammonia water into 100g of water, and mix well to form an alkaline cleaning solution; then heat the alkaline cleaning solution to 80°C, and finally put the alloy slag into Ultrasonic cleaning is carried out in alkaline cleaning solution, the cleaning time is controlled at 10 minutes, the frequency of ultrasonic is 60 KHz, and the power of ultrasonic is 100 W;

[0026] c. Clean the alloy slag after passing through the alkaline cleaning solution with pure water;

[0027] d. Put the alloy slag cleaned by pure water into 150 mL of organic reagent for ultrasonic cleaning. The organic reagent is composed of absolute ethanol, acetone and carbon tetrachloride in a vol...

Embodiment 2

[0031] A sample preparation method for rapid determination of chemical components in alloy slag comprises the following steps:

[0032] a. Take 100g of deformed alloy milling material with a length not greater than 20mm;

[0033] b. First add 20g of potassium hydroxide, 10g of sodium hydroxide and 20mL of saturated ammonia water into 100g of water, and mix well to form an alkaline cleaning solution; then heat the alkaline cleaning solution to 100°C, and finally put the alloy slag into Ultrasonic cleaning is carried out in alkaline cleaning solution, the cleaning time is controlled at 5 minutes, the frequency of ultrasonic is 80 KHz, and the power of ultrasonic is 200 W;

[0034] c. Clean the alloy slag after passing through the alkaline cleaning solution with pure water;

[0035] d. Put the alloy slag cleaned by pure water into 200 mL of organic reagent for ultrasonic cleaning. The organic reagent is composed of absolute ethanol, acetone and carbon tetrachloride in a volume r...

Embodiment 3

[0039] A sample preparation method for rapid determination of chemical components in alloy slag comprises the following steps:

[0040] a. Select 150g of strip or granular alloy slag with a diameter ranging from 0.5 to 20mm;

[0041] b. First add 30g of potassium hydroxide, 12g of sodium hydroxide and 15mL of saturated ammonia water into 100g of water, mix well and evenly to form an alkaline cleaning solution; then heat the alkaline cleaning solution to 50°C, and finally put the alloy slag into Ultrasonic cleaning is carried out in alkaline cleaning solution, the cleaning time is controlled at 8 minutes, the frequency of ultrasonic is 100 KHz, and the power of ultrasonic is 500 W;

[0042] c. Clean the alloy slag after passing through the alkaline cleaning solution with pure water;

[0043] d. Put the alloy slag cleaned with pure water into 400 mL of organic reagent for ultrasonic cleaning. The cleaning time is controlled at 7 minutes, the ultrasonic frequency is 100 KHz, an...

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Abstract

The invention relates to a preparation method for a sample used for rapid determination of a chemical component in alloy slag charge. The preparation method comprises the following steps: sorting, performing heated ultrasonic cleaning in an alkaline cleaning liquid, cleaning in pure water, performing ultrasonic cleaning in an organic reagent, melting and performing sample preparation under a negative pressure condition and in an inert gas atmosphere as well as grinding and polishing. The method provided by the invention is simple in steps and easy to operate, and blocky samples meeting spectroscopic analysis or mass spectrometry requirements can be prepared easily; and many samples are molten and can be used for analyzing uniformity of the alloy slag charge.

Description

technical field [0001] The invention relates to a sample preparation method for rapid determination of chemical components in alloy slag, and belongs to the technical field of analysis and testing of alloy elements. Background technique [0002] Every year, a large amount of alloy milling slag is produced in the world due to powder metallurgy, metal machining, etc., as well as waste high-temperature alloy blades that are forged and crushed into scraps after being dismantled from gas turbines and aircraft engine main engine overhauls. Very high economic value. It is necessary to find a suitable solution for the treatment and reuse of a large amount of backlog of alloy slag. Many slags can be processed by physical and chemical methods, classified, and re-melted into suitable alloys, so that the alloy slag can be recycled, so as to achieve The purpose of effectively reducing costs. The classification of alloy slag is an important part of recycling. It is related to the qualit...

Claims

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Application Information

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IPC IPC(8): G01N1/28G01N1/32C22C1/03G01N33/202
CPCG01N1/28G01N1/286G01N1/32C22C1/03G01N33/202
Inventor 年季强吕水永陈颖杰鄂天罡冯晨尚爱花
Owner JIANGSU LONGDA SUPERALLOY MATERIAL CO LTD
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