Ceramic Foam Filters Molten Aluminum Casting Filtration for Metal Filtration

• Application: Ceramic Decorations, Refractory, Structure Ceramic, Industrial Ceramic
• Type: Ceramic Plates
• Material: Alumina Ceramic
• Transport Package: Wooden Case
• Specification: Customized
• Origin: China
• Production Capacity: 20000PCS Per Week

Product Description

Functions of ceramic foam filter 
1.Decontaminate the melting metal liquid
2.Simplified gating system
3.Improve the metallurgical structure of the castings
4.Reduce imparities of the castings
5.Improve casting quality rate
6.Reduce casting internal re-oxidation defects
7.Reduce the surface defects after machining of the castings

Classification 
1.Alumina Foam Filter
2.Silicon Carbide Ceramic Foam Filter
3.Zirconia Ceramic Foam Filter
4.Magnesia Ceramic Foam Filter.
Guide of Choosing Ceramic Foam Filter

It's very important to choose and design filter model & filter seat correctly according to casting types and pouring weight. The general principle is that the whole gating system should be a system without pressure to ensure that the molten metal liquid filling mould smoothly. Ratio of the sectional area will be the main point.
F sprue:F filter front-end:F filter back-end:F runner:F ingate = 1:4:1.75:1.1:1.2

Specifications for Alumina Casting

	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
	305×305×50	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

Specification for Iron casting

	Dimensions (mm)	Pouring Rate (kg/s)		Filtration Capacity (kg)
		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

Specification for Steel/Magnesium casting
Specification for Steel/Magnesium casting

Dimensions (mm)	Zirconia Foam Filter		Dimensions (mm)	Magnesia Foam Filter
	Pouring Rate(kg)	Filtration Capacity(kg)		Pouring Rate(kg)	Filtration Capacity(kg)
50×50×22	3~5	30	Ф50×22	4.0	60
50×75×22	4~6	40	Ф60×22	7.0	80
75×75×22	7~12	60	Ф90×22	10.0	120
75×100×22	8~15	80	Ф120×22	16.0	160
100×100×22	14~20	100	100×100×22	13.0	140
Ф50×22	2~6	18	150×150×25	22.0	260
Ф80×22	6~10	50	230×230×30	130.0	3100
Ф90×22	8~16	70	300×300×40	260.0	5200

Physical and chemical properties
 

Material	Alumina	Silicon Carbide	Zirconia
Color	White	Grey black	Yellow
Pore Density	10-60ppi	10-30ppi	10-30ppi
Porosity	80-90%	80-90%	80-90%
Refractoriness	≤1100ºC	≤1500ºC	≤1700ºC
Bending Strength	>0.6Mpa	>0.8Mpa	>1.0Mpa
Compression Strength	>0.8Mpa	>0.9Mpa	>1.2Mpa
Volume-weight	0.3-0.45g/cm^3	0.35-0.5 g/cm^3	0.9-1.5 g/cm^3
Thermal shock resistance	6 times/1100ºC	6 times/1100ºC	6 times/1100ºC
Application	Aluminium, Aluminium alloys and other Non-ferrous alloys	Ductile Cast Iron, Malleable Cast Iron, Gray iron and other Cast Iron	High melting point metal alloys like Steel, Alloy Steel, Stainless Steel etc
Chemical Composition	Al3O2> 80% SiO2< 10%	SiC≥60% Al2O3≤30% SiO2≤10%	ZrO2≥ 94% Al2O3≤1.8% MgO≥3.0% SiO2≤0.5% Fe2O3≤0.10%