Micro expansion refractory castables
Micro-expansion refractory castable is a new type of refractory castable which is developed by using adhesive bonding and low cement castable technology. Its characteristics are suitable strength, micro-expansion and good thermal shock resistance. The series says that the injection material can be applied to all parts of the industrial furnace. The micro-expansion refractory castable has been used in the heating furnaces of more than ten steel plants, such as Baoxin, Baoding Yaxin, Yinfeng, Kaiping No. 6 Rolling Mill, etc. It is an ideal material for various heating furnaces. Especially the regenerative heating furnace.
The micro-expansion refractory castable is developed by our company according to the low cement castable. The compound expansive agent of medium and high temperature is introduced into the formula, which makes the product produce slight volume expansion in the course of using. It can effectively prevent the lining from cracking, save heat and energy, and reduce thermal spalling. It is suitable for use in power plant boilers, sugar making boilers, petrochemical and iron and steel industry heating furnaces.
high corundum based
high alumina mullite
AL2O3, % ≥
bulk density,g/cm³ ≥
linear change aftcr heating，%
water quantity of using，%
Furnace top and low temperature furnace wall
Furnace wall and partition wall
Water cooled tube bandage and burner brick
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