Sunrise Refractory Hot Sales Fused Cast Mullite Blocks With High Quality And Competative Price

Mullite Brick or Light Mullite Brick: High alumina refractory with mullite brick (3Al2O3 • 2SiO2) as the main crystal phase. Generally, the alumina content is between 65% and 75%. In addition to mullite, those with lower alumina also contain a small amount of glass phase and cristobalite; those with higher alumina also contain a small amount of corundum. High fire resistance, up to 1790 ℃. Load softening start temperature is 1600 ~ 1700 ℃. The compressive strength at room temperature is 70 ～ 260MPa. Good thermal shock resistance.

 

The fused mullite crystals are larger than the sintered mullite and have better thermal shock resistance than the sintered products. Their high temperature performance is mainly determined by the alumina content and the uniformity of the mullite phase and glass distribution.

 

Fused zircon corundum bricks are made by melting the raw materials completely, casting them in a mold, and cooling and solidifying them. The shrinkage caused by the volume shrinkage of this product during the condensation process should be paid special attention during use. The fused zirconium corundum bricks are cast by ordinary casting (PT), tilt casting (QX), shrink-free casting (WS) and quasi-free shrink-free casting (ZWS).

Its compact structure has the advantages of wear resistance, impact resistance, high temperature resistance, and good thermal shock resistance. This material is made of the high grade mullite grogs and melted and cast in an electric arc furnace at high temperature.

 

Application fields of fused zircon mullite bricks in Sunrise Refractory Plant:

It mainly used in the position required good wear-resistance and high temperature resistance, such as the sliding rail brick of pusher-type reheating furnace and steel tapping spout of step-type heating furnace and garbage incinerator lining, etc. Our fused zircon mullite bricks have not only been promoted in domestic steel mills, but have been exported to South Korea, Indonesia, Taiwan(China) and other countries and regions.