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Bonded Particle Filter Systems

For Aluminum Sand, Permold, and Die Casting Foundries

Increase metal cleanliness Improve fluidity, castability, machinability, yield Reduce rejects and rework Offer choice of applications

 

Why Filter?

Integrity, properties, and surface appearance are important qualities of aluminum foundry alloys used in automotive, electronic, appliance, and other exacting applications. By filtering oxide inclusions and intermetallic sludge, you'll not only eliminate the hard spots they cause in machining, but you'll also improve the full range of alloy properties.

Specifically, filtering improves castability, yield, and productivity. You will increase profitability as well!

Benefits of the Bonded-Particle Filter

Rugged, durable Corrosion-resistant to molten aluminum over long time periods Thermally conductive - minimal heat loss High filtration efficiency Long life - often one to two months service.

 

The bonded-particle filter has a proven track record of performance and long life in many aluminum foundry and die casting applications. It's a rugged, durable filter made of discrete particle of silicon carbide or aluminum oxide and an aluminum-alloy resistant binder system.

The bonded-particle filter is less porous than other filter materials and contains a greater number of tortuous, interconnected pathways. Therefore, there are many more chances to capture inclusions as the molten aluminum flows through the filter. Also, the binder system actually has a "fly paper" effect in holding on to inclusions, even with repeated usage.

Most foundries use either a 6- or 8-grit bonded particle filters, which are finer than 30 and 40 ppi ceramic foam filters. Flow rate capability is 1.5 lbs/min/square inch (0.1 kg/min/sq cm) filter surface area. The bonded-particle filter is best applied in a "systems" approach. within the furnace or ladle, rather than directly in a mold cavity.

To see more applications of the bonded-particle filter systems click here.

 

 

©2006 Metaullics Systems, a Division of Pyrotek

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