China Alumina Ceramic Foam Filter for Molten aluminium alloy filtration manufacturers and suppliers

Alumina Ceramic Foam Filter for Molten aluminium alloy filtration

Short Description:

Alumina Foam ceramics foundry filter are mainly used for filtration of aluminium and aluminium alloys in foundries and cast houses . With their excellent thermal shock resistance and corrosion resistance from molten aluminum, they can effectively eliminate inclusions, reduce trapped gas and provide laminar flow, and then the filtered metal is significantly cleaner. Cleaner metal results in higher-quality castings, less scrap, and fewer inclusion defects, all of which contribute to bottom-line profit.

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Specification for Alumina ceramic foam filter

Dimension (mm)	Dimension (inch)	Pouring rate (kg/s)	Filtration capacity (ton)
17817850	772	0.2-0.6	5
22822850	992	0.3-1.0	10
30530550	12122	0.8-2.5	15
38138150	15152	2.2-4.5	25
43043050	17172	3.0-5.5	35
50850850	20202	4.0-6.5	45
58558550	23232	5.0-8.6	60

Physical &chemical properties

Material	Alumina
Color	White
Pore Density	8-60ppi
Porosity	80-90%
Refractoriness	≤1200ºC
Bending Strength	>0.6Mpa
Compression Strength	>0.8Mpa
Volume-weight	0.3-0.45g/cm3
Thermal shock resistance	6times/1100ºC
Application	Aluminium, Aluminium alloys and other Non-ferrous alloys

Functions

1. Decontaminate the melting metal liquid
2. Simplified gating system
3. Improve the metallurgical structure of the castings
4. Reduce imparitied 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

Advantages

1.Increased Fluidity
Removal of inclusions makes the metal more fluid, resulting in easier mold fill, better cast structure, and better thin section castability.

2.Reduced Mold and Die Wear
Removal of inclusions and other nonmetallic debris from the melt reduces die soldering and mold-metal interaction, which degrades the mold surface and service life.

3.Longer Tool Life
Oxide as well as intermetallic inclusions create “hard spots” that damage tools in machining and finishing operations. Filtration reduces tool wear and increases productivity.

4.Fewer Rejects
Inclusions nucleate porosity, create hot tears during solidification,cause surface defects that mar appearance, and often reduce mechanical properties. In many cases, filtration cuts rejects from such causes to virtually zero. Improvements in yield to near 100% and reduced reject rates to at or near 0% are common.