A method for preparing a ladle isolation spray coating using a carbon ultrafine powder containing silicon carbide
By preparing a mixture of silicon carbide-containing ultrafine carbon powder and white clay, combined with a composite aqueous solution of water glass and aluminum sulfate, the uniformity and stability issues of the molten iron ladle isolation coating were solved. This optimized the high-temperature performance and ensured strong adhesion of the coating, reducing production costs and improving the reliability of the coating.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANXI LUWEIBAO TAIGANG REFRACTORIES CO LTD
- Filing Date
- 2026-05-07
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies for preparing molten iron ladle isolation coatings suffer from insufficient uniformity of raw materials, resulting in unstable product performance and an inability to guarantee the uniformity and reproducibility of sintering performance and adhesion strength.
The process involves using raw materials such as silicon carbide carbon ultrafine powder, white clay, water glass, and aluminum sulfate to prepare ultrafine powder through specific crushing and grinding processes. A step-by-step feeding and multi-stage variable speed stirring mixing process is adopted, combined with a composite aqueous solution of water glass and aluminum sulfate as a binder to form aluminum silicate gel with a cementing effect, ensuring the uniformity and strength of the coating.
This technology achieves high-temperature performance stability and adhesion strength of the isolation spray coating, reduces production costs, minimizes environmental impact, and ensures the service life and protective effect of the coating in high-temperature environments.
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