Materials for tundish

Insulation layer: asbestos board, isolation brick, low dense castable Permanent layer: Castable, high alumina & mullite castable Working layer: clay brick, high alumina brick & magnesia brick 1. Ladle shroud 2. Lid insulation 3. Stopper mono block 4. Bottom 5. Weirs and dams 6. Impact plate 7. Nozzle 8. Nozzle 9. Submerged shroud 10. Monolithic safety lining 11. Tundish insulation 12. Well block 13. Blank plate Refractory for continuous casting

Refractory for continuous casting

Items 项目	LZ-1	LZ-2	LZ-3	LZ-4	LZ-5	LZ-6
Material材质	Magnesium-chrome paint	Magnesium paint	Magnesium calcium paint	High aluminum brick	High aluminum castable	Clay brick
Application 使用部位	Working layer	Working layer	Working layer	Working layer	Working layer	Permanent layer
Al2O3 %				75	≥60	>40
Cr2O3 %	5~10
MgO %	≥70	≥85	≥70
CaO %			≥10		≤0.7
SiO2 %	≤4	≤6	≤6
Apparent porosity 显气孔率（%）				19~21		<18
Igloss灼减（%）	≤3	≤3
Bulk Density 体积密度/g·cm3 (110°C, 24h)	≥2.2	≥2.2	≥1.8	≥2.5	≥2.55	≥2.2
（PLC）Permanent linear change on reheating 重烧线变化/% (1500°C, 3h)	0~-1.5	0~-2.0	0~-3.5	-0.2	±0.5
Thermal conductivity 热导率/W·(m·K)-1 （500°C）	1.2	≤1.0	≤0.8
Cold Crushing Strength 耐压强度/MPa (110°C, 24h)	≥4	≥5	≥3	≥60	≥14.7	≥40
Refractoriness 耐火度/°C				>1790	>1790
（RUL）Refractoriness Under Load 荷重软化温度/°C				T1>1500