Zirconia bubble brick is a kind of high-temperature refractory material, which is composed of zirconia bubble particles and binders. Zirconia bubble particles are a porous material composed of zirconia particles, which have high compressive strength and good thermal insulation performance.
Zirconia bubble brick physical and chemical indicators
Tétel | Index | |||||
GQZ-1 | GQZ-2 | GQZ-3 | GQZ-4 | GQZ-5 | GQZ-6 | |
Zr(Hf)O2+Stabilizer % | ≥99 | ≥98 | ||||
Al2O3 % | ≤0,4 | ≤0,6 | ||||
SiO2 % | ≤0,2 | ≤0,4 | ||||
Fe2O3 % | ≤0,2 | ≤0,2 | ||||
Bulk Density g/cm3 | 2.4~2.9 | 2.9~3.2 | 3.2~3.8 | 2.4~2.9 | 2.9~3.2 | 3.2~3.8 |
Hideg törési szilárdság MPa | ≥10 | ≥15 | ≥20 | ≥10 | ≥15 | ≥20 |
Hővezetőképesség W/(m·K) Hot Face 1100℃ | ≤0,7 | ≤0,9 | ≤1,2 | ≤0,7 | ≤0,9 | ≤1,2 |
Permanent linear change % 1600℃ × 3 óra | -0.3~0 | -0.3~0 |
Application of zirconia hollow sphere brick
Zirconia bubble bricks are mainly used for heat preservation and heat insulation of high-temperature furnaces and are widely used in various furnace equipment in metallurgy, vegyipar, építőanyagok, kerámia, üveg, és más iparágak. A hagyományos szigetelőanyagokhoz képest, zirconia bubble bricks have a higher refractory temperature, better thermal stability, and longer service life.
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