Ultra high temperature sintered tabular corundum, alumina as raw material, through grinding and shaping after drying, fast heating up fast cooling conditions in the ultra-high temperature shaft kiln under, self growth for many integrated plate columnar crystal grain size, generally in the 30-200um, alumina corundum purity many closed micro hole high containing internal. Special technology of the product determines the unique properties of it: high refractoriness; high corrosion resistance; high abrasion resistance; shock resistance and high heat resistance; high strength and good toughness; chemical stability. Refractory and ceramic and electric ideal insulation material, as well as abrasives and polishing the ideal material. I Secretary for sand and powder for a variety of 10mm-W10.

Main physical and chemical indexes of products:

Index

Specifications

Al2O3

Na2O

SiO2

Fe2O3

Bulk density

Apparent porosity

Water absorption rate

Granular material

99

0.40

0.16

0.10

≥ 3.5g

5

1.5

The fine powder

99

0.45

0.18

0.15

Packing: 25kg bag + wooden pallet fumigation;

1000kg bag + plastic bag lined, upper and lower opening.