Analysis method for tungsten element content of iron and steel by ICP process

A technology of element content and iron and steel, applied in the field of determination of tungsten element content in iron and steel, can solve the problems of long analysis period, high analysis cost, cumbersome methods, etc., and achieve the effect of long analysis period, high analysis cost and high sensitivity

Inactive Publication Date: 2018-09-04
TIANJIN PIPE GROUP CORP
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Problems solved by technology

At present, the methods for detecting tungsten in iron and steel are mostly the traditional chemical wet method, which has many steps, cumbersome methods, long analysis period and high analysis cost.

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  • Analysis method for tungsten element content of iron and steel by ICP process
  • Analysis method for tungsten element content of iron and steel by ICP process
  • Analysis method for tungsten element content of iron and steel by ICP process

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Embodiment Construction

[0008] The method for determining the content of tungsten element in steel by inductively coupled plasma emission spectrometry of the present invention will be described below in combination with examples.

[0009] The method for the determination of tungsten element content in steel by inductively coupled plasma emission spectrometry of the present invention is based on the following design idea: inductively coupled plasma emission spectrometry (ICP-AES) is convenient and quick to operate, and the result is accurate, but an acidic liquid sample is required to be introduced into the instrument It is difficult to directly dissolve tungsten-containing iron and steel samples in common acids such as hydrochloric acid and nitric acid, so phosphoric acid is used for dissolution, and perchloric acid is used to help dissolve. Under certain conditions, the sample can be completely dissolved in the acid solution and enter the instrument for detection , draw the method curve through the s...

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Abstract

The invention discloses an analysis method for the tungsten element content of iron and steel by ICP process. The method includes the steps of: (1) setting of the instrument measurement conditions: anRF generator power of 1352W, the flow of argon gas as atomizing gas of 27.0Psi, as a carrier gas of 1.0Psi, a pump speed of 100rpm, a sample washing time of 60s, an integral time of Uv30s/Vis5s, a tungsten element measurement wavelength of 207.911nm, and a high salt atomizer diameter of 1.5mm, (2) preparation of a sample, (3) preparation of a standard solution, (4) drawing of a working curve, and(6) determination of accuracy and precision. The method provided by the invention has the advantages of: accurate and reliable analysis result, simple, fast and convenient operation, and meets the requirements of enterprises for fast and accurate test data.

Description

technical field [0001] The invention relates to a method for measuring the content of tungsten element in iron and steel, in particular to a method for determining the content of tungsten element in iron and steel by inductively coupled plasma emission spectrometry. Background technique [0002] Inductively Coupled Plasma Emission Spectroscopy (ICP-AES) is the most commonly used element determination and analysis method in the field of materials. ICP-AES has the characteristics of low detection limit, high sensitivity, good stability, small matrix effect, simultaneous analysis of multiple elements, etc., and is widely used in the field of metallurgical analysis. Tungsten has a high melting point and a large specificity. It forms tungsten carbide with carbon, which has high hardness and wear resistance. Adding tungsten to steel, especially tool steel, can significantly improve tempering stability, red hardness and thermal strength, and is an important raw material for many i...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/73G01N1/28
CPCG01N1/28G01N21/73G01N2001/2893
Inventor 于晟韩春梅周冠男任刚
Owner TIANJIN PIPE GROUP CORP
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