Ingredient prediction method for dissimilar steel continuous casting

Abstract

The invention discloses an ingredient prediction method for dissimilar steel continuous casting. The ingredient prediction method for dissimilar steel continuous casting comprises the following steps: a stopper is closed while a casting speed of a casting blank is reduced to a first casting speed value; an iron plate is inserted while a level height of a tundish is judged to achieve a preset level height interval; after the iron plate is inserted, casting for a large ladle is started at first, and then the stopper is opened and casting for the tundish is started, wherein during a level rising process of the tundish after the casting for the tundish is started, alloy element concentrations at an outlet of the tundish at the end of each time period of the level rising process of the tundish are obtained through a first molten steel mixed casting ingredient prediction model, and after the level of the tundish rises to a target tonnage, alloy element concentrations at the outlet of the tundish at the end of each time period after the target tonnage is achieved are obtained through a second molten steel mixed casting ingredient prediction model; and original steel rolling is carried out after plate blank ingredients are predicated to be qualified according to the alloy element concentrations. The technical problems of blank warehouse overstocking due to the existing manner of inserting the iron plate and carrying out continuous casting, and production period increasing of the dissimilar steel continuous casting, are solved, and the production efficiency of the continuous casting is improved.

Description

technical field [0001] The invention relates to the technical field of iron and steel metallurgy, in particular to a method for predicting the composition of continuous casting of different steel types. Background technique [0002] Continuous casting production is organized in units of pouring times. In order to improve production efficiency, it is necessary to increase the number of pouring furnaces for single pouring as much as possible. For steel grades with small production volume, continuous pouring of different steel grades can be used to increase the number of furnaces for single pouring and continuous pouring. The continuous casting and continuous pouring of different steel grades between the same and different steel grade components is usually carried out in three ways: direct continuous casting with a certain intersection of all components, continuous casting through inserting iron plates if there is a certain gap between the components, and continuous casting of...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a method for predicting the composition of continuous casting of different steel types, which solves the existing technical problems of billet warehousing and continuous casting of different steel types that exist in the existing continuous casting of iron plates.

Images