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
Item | 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 |
Cold Crush Strength MPa | ≥10 | ≥15 | ≥20 | ≥10 | ≥15 | ≥20 |
thermal kondaktibiti w /(m·K) Hot Face 1100℃ | ≤0.7 | ≤0.9 | ≤1.2 | ≤0.7 | ≤0.9 | ≤1.2 |
Permanent linear change % 1600℃×3h | -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, industriya ng kemikal, building materials, ceramics, salamin, at iba pang mga industriya. Compared with traditional insulation materials, zirconia bubble bricks have a higher refractory temperature, better thermal stability, and longer service life.
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