Using micro-powder bonding technology, Ladle backing layer castable is made of corundum,aluminum magnesium spinel and fused magnesia as main raw materials.The content of Al2O3 is more than 70% in the Ladle backing layer castable.The product is can be used for pouring ladle permanent layer and making ladle backing board.
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The advantages of Ladle backing layer castable: good fluidity, suitable solidification time, high strength, long service life, good thermal insulation performance, temperature resistance, corrosion resistance and thermal shock resistance.
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Ladle backing layer castable physical and chemical parameters：
Item
brand
LBLC70
Chemical composition,≥
Al2O3
70
MgO
8
Bulk density/ g/cm3, ≥
2.45
Crushing strength/Mpa, ≥
110℃ x 24h
30
1500℃ x 3h
60
Modulus of rupture/Mpa, ≥
110℃ x 24h
4
1500℃ x 3h
12
Firing linear change/%
110℃ x 24h
0~+1.5
Packing : 25kg/bag, 1000kg/bag or customer requirements
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