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Alumina Foam Ceramics for Aluminium Alloy Casting1
Refractory MaterialOxide FilterAluminum Oxide Filter
Pingxiang Obbo Environmental Technology Co., Ltd.
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Product Description Product DescriptionAluminum Oxide Filter, Alumina Porous Ceramic Foam Filter for CastingAlumina 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 Features1.High porosity2.Superior dimensional tolerances3.Low loss of thermal shock4.High mechanical strength at normal and high temperature5.Large specific surface6.Good chemical stability7.Excellent filtering functions of screen8.Excellent filtering residua collection and absorption9.Beveled edges and compressible gasketSpecification:Chemical CompositionAl2O3, SiO2Porosity(%)80~90ColourWhite Aperture10PPI-50PPIWorking Temperature≤1100°CBending Strength(Mpa) 0.6 Compression Strength(Mpa) 0.8 Thermal Shock Resistance 1100°C---room temperature 6 times Volume Density 0.4-0.5g/cm3Tolerance -1.0 / 0mm (also be customized according to customer requirements) Specification(inch)Filter Size(mm)Remark7 inches178*178*501.10-30ppi Aluminum alloy bar continuous casting and rolling2.30-50ppi for semi-continuous casting3.40-50ppi for high quality aluminium profile and plate4.50-60ppi for double zero wave continuous casting and rolling9 inches228*228*5012 inches305*305*5015 inches381*381*5017 inches432*432*5020 inches508*508*5023 inches584*584*5026 inches660*660*50 Recommended ProductsCompany ProfilePackaging & ShippingFAQ1.Q:Are you trade company or manufacture?A:We are manufacture with more than 14 years experience,and the price is the factory price. 2.Q:How to control the quality?A:We have strict quality by QC team. 3.Q:How long is the delivery time?A:It is about 5 days after payment for stoct goods,10-15 days for new producing goods. 4.Q: How to get the sample ?A: Please contact us for send your samples. 5.Q:What is the payment terms?A:Flexible and diverse payment ways can be chosen, make you more convenient .Generally,30% in advance,70% before shipment 6.Q:Can you do OES service?A:Yes,size & shape could be made as customer requirment
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