16 May 2022

REFRACTORIES USED IN INDUSTRIES

REFRACTORIES USED IN INDUSTRIES

SOME OF THE REFRACTORIES USED IN INDUSTRIES:

A. Bricks & Shapes:
i. Dense type
– Moderate heat duty fire brick (general / critical uses, low iron type
– High heat duty fire brick                                                                                                                                                                                                                                                                                  – 42-44% Al O brick 2 3
– High alumina brick (45-99% Al O ) 2 3
– Phosphate bonded bricks
ii. Insulating type
– Mica brick
– Insulating fire brick ( hot face & back-up)
– Low B.D. high strength insulating firebrick

 

B. Monolithics:
i. Insulating castable (B.D =0.8 to 1.7)
– Normal strength
– High strength
– Low iron type
– Special type (low thermal conductivity, etc)
ii. Dense castable
– Conventional castable
– Low cement castable ( CaO more than 1%& less than 2.5%)
– Ultra low cement castable (CaO more than 0.2%& up to 1%)
– No cement castable (CaO maximum up to 0.2%)
– Abrasion resistant castable
– Ramming masses
iii. Ramming materials
iv. Plastics
C. Ceramic Fibre materials
– Blankets
– Module
– Vacuum formed board
– Bulk fibre
– Rope
– Paper, etc.
D. Minera Wool
– Blankets / Pads
E. Calcium silicate blocks

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