Zhengzhou Dongfang Ancai Refractory Co., Ltd.
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AZS Fused Cast Blocks

Min. order: 1 Piece
Payment Terms: L/C, T/T, Western Union
Trademark: ACRC

Product Detail

Basic Info
  • Model NO.: AZS 33 AZS 41
  • Feature: Long Time Materials
  • Type: Refractory Material
  • Shape: Block
  • Refractoriness (℃): 1770< Refractoriness< 2000
  • Material: Alumina-Zirconia-Silica
  • Application: Glass Furnace, Frit Kilns, Skid Rails
  • Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Mid East, Eastern Asia, Western Europe
Additional Info
  • Trademark: ACRC
  • Packing: wooden cases
  • Standard: ISO9001
  • Origin: China
  • HS Code: 6902200000
  • Production Capacity: 15 000 MT/Year
Product Description

Fused Cast AZS are the most widely used materials in glass melting furnaces, frit kilns and occasionally some foundry plants(skid rails of reheating furnace). They can be classified by their zirconia content, which basically defines their corrosion resistance, into 3 families: AZS 33, AZS36 &AZS 41

AZS 33: The compact microstructure of AZS 33 enables it to have very good corrosion resistance to molten glass. It very rearely results in stoning and has very limited chances to cause blistering and othe defects to glass, so AZS 33 is the most common product used in the glass furnace.

AZS 36: Despite of the similar eutectic crystal as AZS 33, AZS 36 has more free baddeleyite crystals in chain structure and less vitreous phase, which further improve the corrosion resistibility and reduce the potential defects in glass, so it is recommended to be used in sections where glass flow is faster and temperature is higher, such as melter sidewall, paving, doghouse, etc.

AZS 41: AZS 41 has the most free baddeleyite crystals among the fused cast AZS families, which are evenly distgributed within the block. Its corrosion resistibility is the best and thus it is usually recommended to be used in the most demanding positions to balance the furnace life.

Typical Chemical Composition         
Item    Unit  AZS 33 AZS 41 
Al2O3   % 48.9 43.9
ZrO2   33 41
SiO2   16 13
Na2O 1.3 1.1
CaO+MgO+K2O+B2O3 0.6 0.8
Fe2O3+TiO2 0.2 0.2
typical Mineral composition        
vitreous phase   % 19 16
corundum    48 43
baddeleyite   33 41
Physical properties:        
      AZS 33 WS AZS 41 WS
Minimum Bulk density guranateed   g/c.m 3 3.84 4.1
Apparent porosity Max. % 2 1.3
 Melting glass erosion resisiting speed at static state(normal soda-lime glass, 1500 o C*36h) Max. Mm/24h 1.6 1.3
Temprerature of glass leaching  Min. o C 1400 1400
Bubble separation ratio (normal soda-lime glass, 1300 o C*36h) Max. % 2 1
Exudation  (Volume %) (1300 o C*36h) Max. % 3 3
Unit volume  Min. RC g/cm 3 3.4  
VF g/cm 3 3.7 3.92
Cold crushing strength Min. kg/cm2 2000 2000
refractoriness under load o C Min. o C 1700

Zhengzhou Dongfang Ancai Refractory Co., Ltd.
Henan, China
Local Time: 16:07 Sun Sep 21
Account Registered in: 2009
Business Type: Manufacturer, Trading Company, Other

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