A tundish baking method for reducing subcutaneous gas bubbles of a cast strand

CN122142301APending Publication Date: 2026-06-05SHANDONG IRON & STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG IRON & STEEL CO LTD
Filing Date
2026-02-11
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The existing intermediate bread baking method has unreasonable baking parameter settings and lacks differentiated design, resulting in inaccurate control of the baking process and the formation of subcutaneous air bubble defects.

Method used

Differentiated baking parameters are set according to the type of intermediate bag and the season. A segmented baking method is adopted, including low, medium and high heat stages. Temperature monitoring and flame status control are combined to ensure that the bag lining is heated evenly and gas is removed.

Benefits of technology

It effectively reduces subcutaneous bubble defects in the billet, improves the baking quality and service life of the tundish, and enhances the mechanical properties and production efficiency of the billet.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a tundish baking method for reducing subcutaneous gas bubbles of a casting billet, and relates to the technical field of iron and steel metallurgy, and comprises the following steps: performing safety inspection on a tundish; obtaining a tundish type of the tundish and a season type of a current season, and setting baking parameters according to the tundish type and the season type; performing segmented baking on the tundish based on the baking parameters, and monitoring a state of the tundish in the segmented baking process; wherein in the segmented baking process, a baking temperature is increased with an increase of a baking duration; when the baking duration of the segmented baking reaches a preset duration threshold, baking of the tundish is stopped, and an open pouring preparation treatment is performed on the tundish. Different baking parameters are formulated for different tundish linings and seasons, the baking parameters are reasonably set, problems of insufficient baking or excessive baking are avoided, and the baking quality is improved.
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