• Unshaped Refractory Materials

          Unshaped refractory materials are defined as” mixtures consisting of aggregates, additives, and binders, prepared for direct use in the state of delivery or after adding suited liquids”. In contrast to refractory bricks, they are without specific shape and are in majority placed in larger sections behind molds and templates forming a monolithic lining. Gunning installations without the requirement for a mold are increasing due to ease of application and higher installation speed.

Application and properties of platelet alumina/ tabular alumina

The tabular alumina powder takes the imported industrial alumina powder as the main material. Through special processing, grain growth direction is controlled by high temperature, the particles appears the unique plate-like structure, mohs hardness is up to 9 degree, it has the strong grinding force, not easy to produce scratches.

Physical and Chemical Properties:

 

Style(Item)

 

         chemical index

 physical index

Al2O3(%)

SiO2(%)

Fe2O3(%)

Na2O(%)

Volume density

(g/cm3)

water absorption(%)

apparent porosity(%)

0-1mm

1-3mm

3-5mm

5-8mm

 

99.3 min

 

0.1 max

 

0.02 max

 

0.4 max

 

   3.5

 

  1.5

 

 5 max

200#-0

320#-0

325#

99.1 min

0.15 max

0.04 max

0.4 max

   3.45

  2.0

 6 max

 

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