Zirconia Foam Ceramic Filter Ceramic Foam Filter Molten Metal Filter-萍乡欧博环保科技有限公司

Product Introduction

Zirconia ceramic foam filters are determined for filtering of steel and steel alloys up to the temperature of 1700 °C. Filters are recommended especially for high quality grades of alloys.

Ceramic foam filters offer a simple, reliable and costeffective method to remove inclusions. Filtering with CFF is a supplement to metal treatment within the furnace, such as fluxing and degassing or inline filtration.

Ceramic foam filters have an open pore reticulated structure with very high porosity and surface area to trap inclusions. The open foam structures are compose of ceramic material, such as alumina, mullite or silica. Alumina is the most common filter material. Ceramic foam filters operate in a deep bed filtration mode where inclusions smaller than the pore openings are retained throughout the cross-section of the filter.

CFFs typically are a polyurethane foam coated with a ceramic slurry then dried and fired. During firing, the polyurethane foam dissipates leaving behind a porous ceramic structure. The ceramic can be a phosphate-bonded alumina and pore sizes and thicknesses can vary.

Product parameters

Physical and Chemical Properties

Material	Zirconia
Color	Yello
Pore Density	10-30ppi
Porosity	80-90%
Refractoriness	≤1700ºC
Bending Strength	>0.8Mpa
Compression Strength	1.5Mpa
Volume-weight	0.7-1.0 g/cm3
Thermal shock resistance	6times/1100ºC
Application	Steel casting & cast iron castings

Sizes

Dimensions(mm)	Pouring rate(kg/s)	Filtration Capacity(kg)
505022	3-5	30
507522	4-6	40
757522	7-12	60
7510022	8-15	80
10010022	14-20	100
Φ50*22	2-6	18
Φ80*22	6-10	50
Φ90*22	8-16	70

Function

1.Efficiently filter metal particles impurities such as slag and refractory fragments to the micron level to reduce the loss of tools during machining of castings
2.The molten metal filling is stable and the structure of the casting is uniform, thereby improving the mechanical properties such as surface hardness, tensile strength and fatigue resistance of the casting
3.The three-dimensional mesh structure has a good rectification effect on metal turbulence, and has a good control effect on non-metallic inclusions and secondary oxidation caused by turbulent erosion of the cavity.
4.Simplified gating system and improved cavity utilization

5.The surface of the casting is clean, reducing the machining allowance, shortening the cleaning time, and improving the delivery efficiency