NATI Ceramic Foam Filter

NATI Ceramic foam filter is a kind of effective molten metal filter. It is three dimensional connected mesh structure and high porosity has many advantages, for example, large surface area of slags collection, large inner surface area of filtering, small flow resistance, good filtering effect, etc.

Introduction:

Function of Ceramic Foam Filter

*Decontaminate the molten metal liquid

*Simplified gating system

*Improve the metallurgical structure of the castings

*Reduce slag inclusions of the castings

*Increase the casting quality rate

*Reduce casting internal re-oxidation defects

*Reduce the surface defects after machining of the castings

Specifications for Alumina Foam Filter

Dimensions(mm)	Dimensions(inch)	Pouring Rate(kg/s)	Filtration Capacity(ton)
178×178×50	7×7×2	0.2-0.6	5
228×228×50	9×9×2	0.3-1.0	10
305×1305×50	12×12×2	0.8-2.5	15
381×381×50	15×15×2	2.2-4.5	25
430×430×50	17×17×2	3.0-5.5	35
508×508×50	20×20×2	4.0-6.5	45
585×585×50	23×23×2	5.0-8.6	60

Dimension	Pouring Rate(kg/s)		Filtration Capacity(kg)
Dimension	Grey Iron	Ductile Iron	Grey Iron	Ductile Iron
40×40×22	4	3	65	32
50×50×22	6	4	100	52
75×50×22	9	6	150	75
75×75×22	14	9	220	100
100×50×22	12	8	200	100
100×75×22	18	12	300	150
100×100×22	25	16	400	200
150×150×22	50	36	900	450

Specifications for Silicon Carbide Foam Filter

Specifications for Zirconia Foam Filter

Dimensions(mm)	Pouring Rate(kg/s)	Filtration Capacity(kg)
50×50×22	3-5	30
50×75×22	4-6	40
75×75×22	7-12	60
75×100×22	8-15	80
100×100×22	14-20	100
Φ50×22	2-6	18
Φ80×22	6-10	50
Φ90×22	8-16	70

Physical Properties for Ceramic Foam Filter

Material	Alumina	Silicon Carbide	Zirconia
Color	White	Grey black	Yellow
Pore Density	8-60 ppi	8-60 ppi	8-60 ppi
Porosity	80-90%	80-90%	80-90%
Refractoriness	≦1100℃	≦1500℃	≦1700℃
Bending Strength	﹥0.6 Mpa	﹥0.8 Mpa	﹥1.0 Mpa
Compression Strength	﹥0.8 Mpa	﹥0.9 Mpa	﹥1.2 Mpa
Volume-weight	0.3-0.45g/cm3	0.35-0.5g/cm3	0.9-1.5g/cm3
Thermal Shock Resistance	6 times/1100℃	6 times/1100℃	6 times/1100℃
Applications	Aluminium, Aluminium alloys and other Non-ferrous alloys	Ductile Cast Iron, Malleable Cast Iron, Grey Iron and other Cast Iron	High melting point metal alloys like Steel, Alloy Steel, Stainless Steel etc

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