Installation Process & Best Practices for Tundish Linings

Key Requirements for Magnesia-Based Dry Vibratable Materials
Material Composition and Temperature Guidelines
Magnesita refractories utilize a hybrid binder system combining organic and inorganic agents. To preserve binding integrity during installation:

Permanent layer temperature must stay below 100°C (lower preferred)
Working layer thickness: 40-50mm for bottom, 45-60mm for walls (55mm minimum at slag line)
Minimum operational lifespan: 12 hours under continuous casting conditions
Step-by-Step Installation Process
Preparation and Base Layer Formation
When using magnesita refractories:

Install impact pads and nozzle blocks with compacted ramming mix
Spread dry material evenly across tundish bottom (40-50mm)
Position and align forming mold with 45-60mm clearance from permanent walls
Vibration Process and Curing Protocol
Advanced vibration techniques ensure optimal density:

Layer-by-layer filling with 3-5min vibration cycles
Low-temperature curing at 200-250°C for 60-90 minutes
Controlled cooling to below 100°C before demolding
Post-Installation Procedures
Quality Inspection and Final Assembly
After demolding magnesia-based linings:

Check for surface defects (cracks e2mm require repair)
Install flow control components with precision alignment
Backfill joints with matching dry vibratable material
Optimized Baking Curve for Magnesita Refractories
Thermal Treatment Guidelines
Proper baking ensures maximum performance:

Initial phase: d800°C for 30 minutes (ramp rate: 15°C/min)
Final phase: 1100°C peak (minimum 70 minutes dwell)
Total bake time: 70-180 minutes (avoid over-firing)
Carbon Preservation Strategies
To maintain erosion resistance in magnesita refractories:

Limit total thermal exposure time
Use controlled atmosphere during baking
Monitor organic binder degradation points
Why Choose Magnesita Refractories?
Performance Advantages
15-20% longer campaign life vs conventional materials
Reduced breakout risk through precise thermal expansion control
Lower inclusion rates in final steel product
Maintenance Best Practices
Extend service life of magnesia-based linings:

Implement post-casting inspection routines
Use laser profiling for wear measurement
Schedule preventive repairs at 8-10 hour intervals
Choose HYFR, Choose the top quality of China!
Choose HYRE, Choose the top quality of China!
Choose HYFR, Choose the top quality of China!
Choose HYFR, Choose the top quality of China!
Choose HYFR, Choose the top quality of China!
Choose HYFR, Choose the top quality of China!
Choose HYFR, Choose the top quality of China!
Choose HYFR, Choose the top quality of China!
Choose HYFR, Choose the top quality of China!