Multilayer casting filter

Multilayer casting filter

  • CN 102,350,134 B
  • Filed: 07/29/2011
  • Issued: 12/17/2014
  • Est. Priority Date: 07/29/2011
  • Status: Active Grant
First Claim
Patent Images

1. Multi-layer filtering disc for foundry, it is characterized in that:

  • the supporting layer (1) that it is made up of ceramic material and to be made up of ceramic material and the filter course (2) be arranged on supporting layer combines, described filter course has cellular filter bores (3), described supporting layer has the liquid flow hole (4) of lattice-shaped, the hole density of described filter course is greater than the hole density of supporting layer, described supporting layer (1) through-hole rate is greater than filter course (2) through-hole rate, described filter bores aperture is less than liquid flow hole aperture, supporting layer (1) zirconium chromium ceramics or the manufacture of andalusite ceramics form, described filter course (2) hole density is 100-400 per square inch, described filter course (2) thickness is less than supporting layer (1) thickness.

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