Hengjia high-purity magnesium aluminum spinel system uses high-purity alumina and high-purity magnesia raw materials, which are sintered at high temperature to form high-purity raw materials. According to different chemical compositions, they are divided into three product series: AM-66, AM-78, and AM-90.
Hengjia high-purity magnesium aluminum spinel has extremely low impurity content and excellent high-temperature performance. High purity spinel is suitable for prefabricated products such as permeable bricks, seat bricks, steel ladles, electric furnace covers, refractory materials for rotary kilns, refractory materials for melting alloys, as well as shaped products containing spinel, which can help improve the slag erosion resistance of refractory materials and solve the problem of material cracking caused by the addition of magnesium raw materials.

Hengjia high-purity magnesium aluminum spinel has the following characteristics:
High fire resistance;
Good high-temperature volume stability;
Excellent resistance to alkaline slag erosion and permeability;
Good thermal shock stability.