Our company's slide gate plates utilize a low-expansion Al₂O₃-SiO₂-ZrO₂ composite material system, forming a carbon-bonded refractory with primary crystalline phases of zirconia (ZrO₂), mullite, and corundum (α-Al₂O₃).
Zircon-Mullite Aggregate Technology:
Incorporates zircon-mullite as aggregate
Leverages ZrO₂ polymorphic transformation at ~1000°C (accompanied by volumetric shrinkage)
Generates microcracks within grains, significantly enhancing thermal shock resistance
Widely adopted by tier-1 steelmakers across EU/ASEAN markets for:
✓ Continuous casting tundishes
✓ Ladle bottom pouring systems
✓ Special alloy steel production
