MgO-Al2O3 Bricks and periclase-spinel bricks-DKJL CO.LTD

The high purity MgO-Al₂O₃ bricks and periclase-spinel bricks are manufactured by taking the high quality sintered MgO-Al₂O₃ synthetic clinker and electrically

fused MgO-Al₂O₃ synthetic clinker as raw materials through high pressure moulding and hihg temperature burning.They have good thermal shock resistance,volume stability and corrosion resistance and are used in cement kiln and glass tank furnace.

Chemical composition and technical performance	MgO-Al₂O₃ bricks		High purity MgO-Al₂O₃ bricks, periclase-spinel bricks
Chemical composition and technical performance	ML-80A	ML-80B	LGML-80	MLJ-14	MLJ-24	MLJ-50
MgO(%)	≥80	≥80	≥80	≥76	≥66	≥40
Al₂O₃(%)	5-10	5-10	5-10	≥14	≥24	≥50
SiO₂(%)	-	-	≤1.5	≤1.5	≤1.5	≤1.5
Apparent porosity(%)	≤18	≤20	≤16	≤17	≤17	≤17
Cold crushing strength(MPa)	≥40	≥35	≥40	≥40	≥40	≥40
0.2MPa refractoriness under load T0.6(^oC)	≥1600	≥1580	≥1700	≥1700	≥1700	≥1700
Thermal shock resistance （1300^oC air cooling) （1100^oC water cooling)	- -	- -	50 8	50 8	50 8	50 8