Introduction:
Perclase-hercynite refractory bricks are made of sintered magnesia and preformed hericynite, and firing process has to be control to assure the form of Fe2+ in the spinel. The features of the product are strong coatability and flexbility corrosion resistance, peeling resistance and excellent thermal shock resistant. It is an ideal chromium-free basic refractory material for the cement boiling zone.