Azaros > Products > Foundry supplies > Filters > Al2O3 filters

Al2O3 filters



Ceramic foam filters, based on aluminium oxide (Al2O3), with a homogeneous porous structure that gives them great strength.


Characteristics

  • Resistance temperature up to 1,000 ºC and high resistance to chemical agents and aggressive castings.
  • Available in all common sizes and porosities from 10 up to 70 PPI
  • Customized filters available on request.

Typical applications

  • They are suitable for aluminium DC a continuous casting.
  • To achieve the optimum filtration performance, filters should be preheated. Incorrectly preheated filters may lead to a decreased flow rate, decreased filtration performance or even aborted casts.
  • Filters should be preheated as uniform as possible, as non-uniform preheating may lead to thermal stress and tension inside the filter, which finally may lead to cracks.