热风炉用低蠕变红柱石砖
项目 | LHZ—65 | LHZ—60 | LHZ—55 | LHZ—50 |
Al2O3, % | 65 | 60 | 55 | 50 |
显气孔率，% | 20 | 20 | 20 | 20 |
体积密度，g/cm3 | 2.60 | 2.50 | 2.50 | 2.40 |
常温耐压强度，MPA | 50 | 50 | 50 | 50 |
蠕变率，%（20—50h） | 0.2 | 0.2 | 0.2 | 0.2 |
重烧线变化，%（1400℃x4h） | 0—0.3 | 0—0.3 | ±0.2 | ±0.2 |
荷重软化开始温度，℃ | 1650 | 1600 | 1600 | 1580 |
Specification:
Product characteristics; Hot blast stove with low creep brick of andalusite using selected andalusite, corundum, mullite as main raw materials, through high pressure molding, high temperature sintering, andalusite in 1350 ℃ formation of mullite products surface with strong "welding" effect, so that the products good thermal shock resistance, high refractoriness under load, high temperature creep resistant performance is good, good thermal shock resistance, is a Dutch type technical characteristics of hot blast stove with refractory.
