Features: Alkaline refractory main products, the products high refractoriness of iron oxide,basic slag and high calcium flux has good erosion resistance properties. Widely used steel industry steelmaking furnace lining, the ferroalloy furnace, non-ferrous metallurgy industry furnaces, building materials industry kiln, glass industrial regenerator grid body heatexchanger, refractories industrial tunnel kiln and high temperature firing kiln.
Items | LX-SMZ-89 | LX-SMZ-91 | LX-SMZ-93 | LX-SMZ-95 |
MgO(%)≥ | 89 | 91 | 93 | 95 |
SiO₂ (%)≤ | / | / | 3.5 | 2.0 |
CaO(%)≤ | 3.0 | 3.0 | 2.0 | 2.0 |
显气孔率(%)≤
Apparent Porosity |
20 | 18 | 18 | 18 |
常温耐压强度(MPa)≥Cold Crushing Strength | 50 | 60 | 60 | 60 |
奇重软化开始温度Refractoriness Under Load | 1550 | 1560 | 1620 | 1650 |
加热永久线变化率(1650℃x2h)%Permanent Linear Change on heating | -0.6~0 | -0.5~0 | -0.4~0 | -0.3~0 |
导热系数(1000℃)(W/m·k)≤Thermal conductivity coefficient | 3 | 3.8 |