Sillimanite brick


The sillimanite brick is made of sillimanite minerals.After high temperature calcination, it become mullite and dissociate silicon dioxide.Generally use high-temperature firing method and slurry casting method to produce.
  • Sillimanite brick
  • Sillimanite brick
  • Sillimanite brick
  • Sillimanite brick
  • Sillimanite brick
  • Sillimanite brick
  • Sillimanite brick
  • Sillimanite brick
Sillimanite brick
Sillimanite brick
Sillimanite brick
Sillimanite brick

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Description

The sillimanite brick is made of sillimanite minerals.After high temperature calcination, it become mullite and dissociate silicon dioxide.Generally use high-temperature firing method and slurry casting method to produce.

 

Sillimanite brick feature:

  • Good thermal stability.
  • Strong resistance to chemical attack.
  • It is the first choice of stable material for glass forming.

Sillimanite product:

Forehearth brick, trough, rotating tube, spout, stirrer, punch, barrel, guard brick, burner brick, beam plate brick, etc.

Application
  • The discharging hole of glass tank furnace;
  • Forehearth and gob feeder for glass tank furnace; The furnace lining, furnace throat for blast furnace; Kiln furniture for ceramic industry.
Specification:

Item

GXS-50

GXS-60

GXS-62

Chemical composition

 

Al2O3

≥50

≥60

≥62

SiO2

≤45

≤38

≤33

Fe2O3

≤1.2

≤1.0

≤1.0

Apparent Porosity%

≤18

≤18

≤17

Bulk Density g/cm3

≥2.4

≥2.5

≥2.55

Cold Crushing Strength Mpa

≥45

≥50

≥60

0.2Mpa Refractoriness Under Load T0.6 ℃

≥1550

≥1600

≥1650

Permanent Linear Change On Reheating (%)1500℃X2h

±0.1

±0.1

±0.1

Thermal Shock Resistances 100℃ water cycles

≥20

≥20

≥20

Reversible Thermal Expansion 1000℃

0.55

0.6

0.6

Pyrometric Cone Equivalent S.C. SK

35

36

38

 

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