Method for determining melting temperature interval and melting behavior of metallurgical slag

Abstract

The invention provides a method for determining the melting temperature interval and the melting behavior of metallurgical slag and belongs to the technical field of detection of metallurgy materials. According to the method, a thermocouple has dual functions of directly heating a slag sample and directly measuring the temperature of the slag sample simultaneously, the specific melting temperature interval of the metallurgical slag sample is determined according to the characteristic that the slag sample needs to absorb heat during melting and the principle that an absorption peak is produced due to the fact that the slag sample temperature actually acquired by the thermocouple deviates from the target temperature of a set temperature rise curve, and then a characteristic video image, which is synchronously observed and recorded by an imaging system, of the change of the metallurgical slag during heating is intercepted so as to represent the specific change behavior of the metallurgical slag sample during melting in the time range corresponding to the determined melting temperature interval of the metallurgical slag sample. The method has the advantages that the method is simple and convenient to operate, measuring results are direct and accurate, the detection speed is high and the application range is wide, and the method can be used as a novel important detection means for accurately and effectively evaluating high-temperature characteristics of different metallurgical slag samples.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows for accurate measurements on sludge samples without any external factors like water being present between them. By controlling how long they are exposed to different temperatures while still keeping their shape stable, these techniques help identify specific types of materials involved in metal production processes. Additionally, the use of videos captured from an infrared camera helps make quicker analysis time compared to current methods. Overall, this technique provides technical benefits over existing technologies.

Problems solved by technology

This patented technical problem addressed in this patents relates to improves understanding how well an accurate analysis tool is needed for studying metallography processes such as continuously cast ingot production. Specifically, current methods require long hours for precise measurements due to poor response times caused by changes in refractory properties associated with rapid temperatures near critical points within the entire process. Additionally, existing techniques have limitations in predicting transition from complete phase to partial phase transitions.

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