FILLER OF DENSE HOLE CORE

The utility model discloses a 'filler of dense hole core' which belongs to an element for high temperature metal melt filtering and purifying. Because the filter is made from advanced fireproofing materials, e.g., sillimanite, high bauxite refractory, etc. as the principal raw material in sintering way, so the insufficiency of the existing core type filter is compensated. Because the filtering pore diameter of the filter is small, and the number of the filtering hole is large, the filtration effect is improved. At the same time, the high refractability and favorable thermal stability make the filter especially be used for melt filtering and purifying of steel cast, aluminum-copper alloy, grey cast iron, nodular cast iron, etc. The utility model has the advantages of low cost, easy fabrication.