Corundum packing mass

Description of corundum packing mass

Corundum packing mass MKN-94 is a refractory material that is widely used in various industries where high thermal resistance and wear resistance are required. It is a packing mass designed for lining steel casting ladles, electric furnaces and other thermal devices.
Refractory masses MKN, designed for the manufacture of aluminosilicate monolithic monolithic packed lining of the working and reinforcing layer in steelmaking and steel-smelting units at enterprises of ferrous and non-ferrous metallurgy and other industries.

Masses depending on mineralogical composition are subdivided into:

• mullite;
• mullite-corundum;
• corundum

Characteristics of corundum packing mass

Indicator	MKN-88	MKN-90	MKN-93	MKN-94	MKN-96
Mass fraction, %
Al2O3	88	90	93	94	96
Fe2O3	1,2	1,0	0,9	0,9	0,5
P2O5	2,3-3,6	2,3-3,6	2,3-3,6	2,3-3,6	2
SiO2		3,2-5,0
Humidity, %	2,5-4,0	2,5-3,8	2,5-3,8	2,5-3,8	2.7-3.6
Passing through nets, %
No. 3,2, not less	95	97	97	97	97
No. 2, not less than
No. 1, within	50-70	50-70	50-70	50-70	52-60
No. 05, not more	55	55	55	55	47
No. 009, within	35-43	35-43	35-43	35-43	32-38
No. 004, within	34-42	34-42	34-42	34-42	30-36

Where used

Metallurgical industry: blast furnace outlet channel, electric furnace bottom, ladle impact zone.

Ceramic/glass stove: furnace wall, burner surround, melt bath lining.

Chemical/Energy Industry: gasification furnace, refractory layer of incinerator.

Other: induction furnace lining, RH refining furnace repair material.

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