Supply Sintered Spinel refractory material

1.Sintered Spinel refractory material
2.Material:Spinel
3.steady quality
4.Professional manufacturer

Sintered Spinel refractory material PROCESS OF PRODUCTION AND APPLICATION

Sintered Spinel is made of imported industrial alumina and high quality active magnesia as starting materials,sintered at super-high temperature,which is a prefered material for basic refractories and high quality castables for ladle and for con-casting slide plates due to its features of ultral-low impurity,good crystal growth and homogenized structure.

Sintered Spinel is mainly used as secondary material in middle and small ladle casting materials, high grade Spinel is large ladle casting and as the main material of large cement kiln spinel and magnesite spinel.

The guarantee value and Typical value:

Items		Unit	Index
			Guarantee value	Typical
Chemical composition	Al2O3	%	74-79	77.8
	MgO	%	20-25	21.38
	CaO	%	0.60max	0.19
	Fe2O3	%	0.50 max	0.12
	SiO2	%	0.30max	0.12
	Na2O	%	0.10max	0.04
	R2O	%	0.30max	0.20
Magnetic		%	0.02	0.01
Bulk density		g/cm3	3.25 min	3.28
Refractoriness		°C	1850max	1800
Absorbing water rate		%	0.8max	0.3
Porosity rate		%	5.0max	3.0
Size		mm	3-1mm,1-0mm,1-0.15mm 0.15-0mm,0.075-0mm,0.045-0mm