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A steel ladle bottom concreting material is a bulk fire-resisting material prepared by mixing different granularities of particles, fine powder and micro powder of corundum, fused magnesia-alumina spinel, alpha-activated alumina and magnesia powder according to certain proportion, adding various additives, using aluminate cement as a bonding agent, uniformly stirring and mixing. The steel ladle bottom concreting material comprises the following components in percentage by weight: 10-30% of 25-10 mm corundum, 5-15% of 10-8 mm corundum, 5-15% of 8-5 mm corundum, 5-15% of 5-3 mm corundum, 15-25% of 3-1 mm corundum, 15-25% of 1-0 mm corundum, 5-20% of 0.074-0 mm fused magnesia-alumina spinel, 1-15% of 0.061-0 mm magnesia powder, 5-20% of 0.045-0 mm corundum micro powder or silica micro powder, 2-20% of alpha-activated alumina, 2-15% of calcium aluminate cement, 0.1-1.5% of a water reducing agent and 0.01-1% of an anti-explosion fiber. The steel ladle bottom concreting material is high in fire resistance degree, thermal shock resistance, erosion resistance and physical performance.
A steel ladle bottom concreting material is a bulk fire-resisting material prepared by mixing different granularities of particles, fine powder and micro powder of corundum, fused magnesia-alumina spinel, alpha-activated alumina and magnesia powder according to certain proportion, adding various additives, using aluminate cement as a bonding agent, uniformly stirring and mixing. The steel ladle bottom concreting material comprises the following components in percentage by weight: 10-30% of 25-10 mm corundum, 5-15% of 10-8 mm corundum, 5-15% of 8-5 mm corundum, 5-15% of 5-3 mm corundum, 15-25% of 3-1 mm corundum, 15-25% of 1-0 mm corundum, 5-20% of 0.074-0 mm fused magnesia-alumina spinel, 1-15% of 0.061-0 mm magnesia powder, 5-20% of 0.045-0 mm corundum micro powder or silica micro powder, 2-20% of alpha-activated alumina, 2-15% of calcium aluminate cement, 0.1-1.5% of a water reducing agent and 0.01-1% of an anti-explosion fiber. The steel ladle bottom concreting material is high in fire resistance degree, thermal shock resistance, erosion resistance and physical performance.
Steel ladle bottom concreting material
ZHANG YUFU (author)
2015-11-11
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2021