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Andalusite silicon carbide brick

The product is based on high bauxite, mullite and silicon carbide as the main raw material, with high strength, wear resistance, excellent thermal shock stability and so on.

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Product Introduction

The product is based on high bauxite, mullite and silicon carbide as the main raw material, with high strength, wear resistance, excellent thermal shock stability and other characteristics, mainly used in lithium carbonate rotary kiln transition zone, firing zone. Composite bricks are based on the working layer of andalusite silicon carbide bricks, and a special process is used to increase the composite layer and heat insulation layer, which effectively reduces the thermal conductivity of the product and the temperature of the cylinder.

Brand Index	HT-A	HT-B	HT-C	composite layer	Insulation
Al₂O₃ (%) ≥	65	63	60	55	5
SiO₂+SiC(%)≥	30	25	25		SiO₂ (80)
Bulk density B · D(g/cm³)≥	2.65	2.62	2.60	2.0	0.3
Apparent porosity A · P(%)	20	17	17	30
Normal temperature compressive strength C · C · S(MPa) ≥	100	90	90	45
Softening temperature of 0.2MPa load R · U · L(To. ˚C) ≥	1650	1650	1600	1450	1
Thermal shock resistance T · S · R(1100 ℃ water cooling times) ≥	15	10	10	1	1
Temperature Polling Resistance (cm³)≤	6.0	6.5	7.0	1
Thermal conductivity T · C[W/(m · K)1(1000 ℃) ≤	2.0	2.0	2.0	1.4	0.045