Project brief
The continuous-casting line had not been losing control because one consumable was defective. It had been losing control because the tundish package had been fragmented into low-value purchases. Coating, dry material, drainage sand, filler, and touch-up support were arriving as separate discussions, even though they were deciding one operational reality: how reliably the tundish formed, opened, stripped, and returned to service from sequence to sequence. The plant did not need cheaper small items. It needed a daily operating package that behaved like one system.
Equipment and hot zones
- Tundish coating and working layer
- Dry-material body
- Opening point and drainage-related sections
- Filling point and local repair positions
Failure pressure profile
- Inconsistent working-layer formation
- Slow bake-out and difficult strip-out
- Unstable free opening during casting sequences
- Heat-to-heat variation because the tundish package was not controlled as one route
Material combination
- Magnesia coating or Al2O3 coating according to the tundish working route
- Environmental-protection dry material for consistent working-layer formation and cleaner strip-out
- Drainage sand for controlled opening behavior
- Ladle filler or filling material for stable filling and discharge performance
- Gunning mix or local repair support for fast turnaround correction
What changed commercially
The tundish stopped being a basket of consumables and became an operating package with memory. Turnaround improved because bake-out and strip-out were no longer being judged in isolation. Free-opening behavior became easier to stabilize across sequences. Daily purchasing became less reactive. Repeat ordering could finally be tied to casting consistency, not just to the unit price of items that were never independent in service.