一种改进的水口内壁复合材料涂层及其浸入式水口
By coating the inner wall of the immersion nozzle with a composite coating of non-metallic elements, oxides, and ceramic materials, the problem of nozzle nodule formation was solved, the service life of the nozzle was extended, and production costs were reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA IRON & STEEL RESEARCH INSTITUTE GROUP CO LTD
- Filing Date
- 2026-05-22
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies have failed to effectively solve the problem of nozzle nodule formation in the production process of low-carbon, ultra-low-carbon steel and rare-earth steel, resulting in short service life and high production costs for submerged entry nozzles.
An improved composite material coating is used on the inner wall of the sprue. The coating consists of non-metallic elements, metal and non-metallic oxides, non-metallic ceramics and binders. The coating is applied slowly to prevent oxides, sulfides and other substances in the steel from precipitating on the inner wall of the sprue and forming nodules.
It effectively delays the onset and growth time of nodule formation on the inner wall of the sprue, significantly improves the service life of the sprue, and reduces production costs.
Smart Images
Figure CN122400545A_ABST