Alumina Ceramic Foam Filter for Aluminum Casting Filter-安徽美程化工有限公司校园招聘简章

Product Introduction

Alumina ceramic foam filter is a trade description of low-density foundry filters,which are designed for filtration of aluminum and aluminum alloys. Ceramic foam filter plate is produced basing on carrier with solid reticular structure and combined organic foam pores. The producing procedure is as below, put carrier into the thixotropic alumina slurry, adopt square to center correcting automatic extrusion process, so that slurry evenly deposits in foam skeleton of carrier, after drying solidification, then carrier will turn into final product by roasting formed under 1180 ºC high temperature. The filters are placed into pre-developed chambers in inlet systems of the form or in sprue cups.They are suitable mainly for chill casting and for direct and indirect casting on a filter.

Product parameters

Chemical Composition	Al2O3, SiO2
Porosity(%)	80~90
Colour	White
Aperture	10PPI-50PPI
Working Temperature	≤1100°C
Bending Strength(Mpa)	0.6
Compression Strength(Mpa)	0.8
Thermal Shock Resistance	1100°C---room temperature 6 times
Volume Density	0.4-0.5g/cm3
Tolerance	-1.0 / 0mm (also be customized according to customer requirements)

Specification(inch)	Filter Size(mm)	Remark
7 inches	17817850	1.10-30ppi Aluminum alloy bar continuous casting and rolling 2.30-50ppi for semi-continuous casting 3.40-50ppi for high quality aluminium profile and plate 4.50-60ppi for double zero wave continuous casting and rolling
9 inches	22822850
12 inches	30530550
15 inches	38138150
17 inches	43243250
20 inches	50850850
23 inches	58458450
26 inches	66066050

Function

1.High porosity
2.Superior dimensional tolerances
3.Low loss of thermal shock
4.High mechanical strength at normal and high temperature
5.Large specific surface
6.Good chemical stability
7.Excellent filtering functions of screen
8.Excellent filtering residua collection and absorption

9.Beveled edges and compressible gasket