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High-efficiency filler sand is composed of high-quality imported chromium ore sand, refined quartz sand and high-refractory materials. It has the advantages of good fluidity, high specific gravity, fast speed, appropriate sintering layer, resistance to erosion and penetration of molten steel, and the self-flowing pouring rate of the ladle can reach more than 99%. It reduces oxygen blowing and drainage, improves the quality and stability of steel products, and ensures the smooth progress of the continuous casting process.
|
Name |
Physical and Chemical Specification |
|||||||
|
Cr2O3(%) |
Al2O3(%) |
Fe2O3(%) |
SiO2(%) |
CaO(%) |
MgO(%) |
ZrO2(%) |
Tfe(%) |
|
|
Chrome filler sand |
≥30.00 |
≥10.00 |
≤25.00 |
≥20.00 |
≤1.50 |
≤8.50 |
------- |
------ |
|
Zirconium filler sand |
≥20.00 |
≥9.00 |
---------- |
≤25.00 |
------- |
≥8.00 |
≥26.00 |
≤15.00 |
