A method for preventing slag leakage from the head of a slab caster
By setting a slag-blocking ring at the tundish nozzle and controlling the baking temperature, while adding mold protective slag and covering agent in batches, the problem of slag entanglement and steel leakage during the opening of the tundish in slab continuous casting was solved, thereby improving the quality of the cast billet and the stability of production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 武汉钢铁有限公司
- Filing Date
- 2026-04-28
- Publication Date
- 2026-07-17
AI Technical Summary
In the current technology, irregular floating objects are prone to appear in the crystallizer during the tundish opening process of slab continuous casting, which can cause slag to be rolled and steel to leak from the head of the slab, affecting the surface and internal quality of the slab and posing a production safety hazard.
A slag-blocking ring is installed at the tundish nozzle to control the baking temperature of the tundish and nozzle. During the molten steel pouring into the tundish, mold protective slag and tundish covering agent are added in batches to prevent slag entrapment in the mold.
It effectively prevents slag curling and steel leakage at the head of the billet, improves production stability and billet quality, is suitable for mainstream slab casting machines, has low material costs and is easy to promote.
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