Digestion method and detection method for vanadium-nitrogen-titanium-iron mixed alloy conductor

A technology of vanadium nitrogen titanium iron and detection method, which is applied in the preparation of test samples, measurement of color/spectral characteristics, thermal excitation analysis, etc., can solve the problems of influence, large consumption of human resources, and many operation steps.
CN103808558AActive Publication Date: 2014-05-21PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
Publication Date
2014-05-21

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Abstract

The invention provides a digestion method and a detection method for a vanadium-nitrogen-titanium-iron mixed alloy cored wire. The digestion method comprises the following steps: putting a cored wire into a container, adding a concentrated nitric acid and a concentrated hydrochloric acid to the container; carrying out first time of pre-reaction under an open state; adding a concentrated sulfuric acid and carrying out second time of pre-treatment under the open state; carrying out digestion and complexation reaction by microwave in a closed state, so as to obtain a solution. The detection method comprises the following steps: cooling the solution, diluting and fixing volume to obtain a sample solution; determining the content of elementary compositions in one or more sample solutions by using inductively coupled plasma atomic emission spectrometry, flame atomic absorption spectrometry, titration, spectrophotometry and an electrochemical process. The digestion method and the detection method have the advantages of being safe to operate, simple and rapid, efficient and complete, fewer in man-made factors, and easy to accurately control and repeatedly reappear, and technical indexes such as the accuracy, the precision and the like of an analysis result are improved.
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Description

technical field

[0001] The invention relates to the technical field of alloy element detection, in particular to a digestion method and a detection method for a vanadium nitrogen titanium iron mixed alloy cored wire. Background technique

[0002] At present, wire feeding treatment has become an effective method to improve the intrinsic quality of cast steel. The wire feeding technology has been able to feed more than ten kinds of metal wires and alloy core wires, and is widely used in steelmaking processes to effectively reduce the content of oxygen, sulfur and other elements in steel and the total amount of non-metallic inclusions, and has the functions of carburization, micro Alloying, changing the shape of inclusions, etc., can also be used for desulfurization, spheroidization, inoculation, and modification and degassing of aluminum alloys in the casting production process. The application of wire feeding technology has been widely popularized in various enterprises in t...

Claims

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