Five main quality indicators of refractory

• Refractoriness

Refractory nature in the course, resist high temperature without melting, called refractoriness.

Refractoriness refractory given temperature limit used is an important indicator of assessing the merits of the refractory quality.

• Thermal shock resistance

Refractory resist drastic temperature changes without cracking or peeling ability, called thermal shock resistance. This cyclical nature of the furnace heating and cooling operations is important.

• High-temperature structural strength

    At a high temperature and a certain load is applied to the refractory deformation temperature from the start of the deformation to some extent, the structure is called a high temperature or high strength load softening temperature. It is the ability of the refractory temperature and the load resistance while being deformed under the action of this nature and by the selection of a high temperature furnace under the building material force is important.

• Volume stability at high temperatures

    Refractory material for a long time under high temperature, resulting involume expansion, the expansion is called the residual.

Size refractory residual swelling, reflecting the quality of the high temperature volume stability: the smaller the residual deformation, volume stability, the better; contrary, the worse the stability of the volume, the more likely to cause deformation or damage to the masonry.

• Lag resistance

    Ability to resist the erosion of refractories and slag of molten material in

the course of soot and other damage without being called a slag resistance. Slag resistance is an important indicator of the refractory nature of the work you are, the higher the better ability of anti-slag. Good slag resistance refractory high life.