Steel Rail Production Procedure
The production procedure for manufacturing steel rails involves several high-tech technologies to ensure excellent performance and quality. Here's a summary of the key steps and technologies involved:
- Refining Raw Steel
Technologies such as pig iron desulfurization, oxygen top blowing converter smelting, off-furnace refining, vacuum degassing, and bloom continuous casting are employed.
Desulfurization processes help reduce pollution and improve steel cleanliness. Refining technologies outside the furnace and vacuum degassing further enhance steel quality by adjusting composition and reducing gas content.
- Continuous Casting Technology
Bloom continuous casting processes prevent secondary oxidation, reduce inclusions, and improve billet surface quality.
- Finishing Technology
Involves step heating furnace heating, high-pressure water descaling, universal mill rolling, and rail pre-bending.
Step heating furnaces ensure even billet heating, high-pressure water descaling ensures surface quality, and hot pre-bending reduces residual stress and straightening noise during rolling.
