Quality event trigger determining method and device for continuous casting machine

Abstract

The invention provides a quality event trigger determining method for a continuous casting machine. The method comprises the following steps of: acquiring a value of a process parameter influencing quality of a casting body; calculating a value of a trigger expression according to the trigger expression and the value of the process parameter which are contained in a characteristic set for describing a pre-established quality event object, wherein the quality event object is defined on the basis of the process parameter, and the trigger expression is a function of the process parameter; and determining whether a quality event corresponding to the quality event object is triggered according to the value of the trigger expression and the preset trigger time; and if the value of the trigger expression is more than or equal to a preset threshold value, and the value of the trigger expression is more than or equal to duration of the preset threshold value and is more than or equal to the trigger time, determining that the quality event corresponding to the quality event object is triggered.

Description

Technical field [0001] The invention relates to the field of metallurgy. Specifically, it relates to a quality event trigger determination method and device for a continuous casting machine. Background technique [0002] With the increasing requirements for energy saving and consumption reduction in the metallurgical industry and the continuous progress of continuous casting technology, thin slab continuous casting and rolling technology and thin strip continuous casting have the advantages of low energy consumption, low investment, high yield rate, and short production cycle. The rapid development of casting technology and the compact production process technology represented by hot charging and hot delivery and direct rolling have been adopted by many new steel plants. figure 1 It is a schematic diagram of a modern slab caster. Such as figure 1 As shown, a modern slab continuous caster 10 usually includes steel pouring equipment (such as ladle 1 for holding molten steel 20, tu...

AI Technical Summary

Problems solved by technology

Due to equipment aging and replacement, the originally debugged quality event trigger rules may not conform to the current casting machine working conditions. If debugging is not carried out, the abnormality of the continuous casting machine cannot be monitored correctly

Furthermore, when it is necessary to develop new steel grades, the old quality event trigger rules cannot meet the new requirements

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