High Strength Insulation Block

发布时间:2020-07-01 15:21浏览次数:
Brand Name:GQN-130; GQN-150
Description:
                   This product is a kind of new type energy saving refractory,adopting high quality micropore synthetic mullite as aggregte,with special processing to ensure the good stength, refractoriness,thermal shock resistance and low thermal conductivity.it is used for bottom & sidewall of melting furnace and outer wall of regenerator, which both needs good insulation and certain strength.
This product can substitute fireclay bottom blocks, which can not only increase the heating effciency but also decrease furnace weight,improve the thermal shock resistance,extend furnace lifetime.
Physical and Chemical Index:
项目Item 指标Index
GQN-130 GQN-150
物理指标Physical properties
体积密度Bulk density(g/cm3 1.30 1.50
导热系数热面1000℃ Thermal conductivity hot surface 1000℃(W/m•k) ≤0.40 ≤0.50
常温耐压强度Cold crushing strength(MPa) ≥10 ≥20
重烧线变化率Permanent linear change on reheating 1100℃×2h(%) ±0.5 ±0.5
化学成分Chemical composition (%)
Al2O3 ≥45 ≥45
Fe2O3 ≤1.5 ≤1.5
 

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