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Corundum brick-electric furnace bottom

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Product Description

  product Overview:

 

  Fused cast zirconia corundum brick is based on industrial alumina powder and zircon sand. After mixing, it is added to an electric arc furnace to melt, cast, anneal, process, and preassemble into a kiln. According to the content of zirconia: 33 #, 36 #, 41 #. According to its casting method, it is divided into four types: ordinary casting PT, inclined casting QX, quasi non-shrinkage casting ZWS, and non-shrinkage casting WS.

  Physical and chemical indicators:

 

 

Item Indicator
AZS33-Y AZS33-H AZS36-Y AZS41-Y
ZrO2        %       32.0~36.0 32.0~36.0 35.0~40.0 40.0~44.0
SiO2        %      ≤ 16.0 16.5 14.0 13.0
Na2O        %      ≤ 1.50 1.50 1.60 1.30
Bulk density (dense part) g/cm³ ≥ 3.70 3.65 3.75 3.90
Bulk density (dense part)%   ≤ 2.0 2.0 1.5 1.3
Glass phase initiation temperature  ℃      ≥ 1400 1100 1400 1400
Bubble precipitation rate (common soda lime glass,1300℃×10h) %   ≤ 2.0 5.0 1.5 1.0
Bulk weight kg / m3     > PT、QX 3400 3300 3450 3550
ZWS 3550 3500 3650 3800
WS 3600 3550 3700 3850

 

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