AirSlip Billet Casting

AirSlip

The Wagstaff® AirSlip® Air Casting Technology produces the highest quality billets, known for their smooth surface finish, small shell zone, and uniform-grain structure — the world standard  for billet quality.

The AirSlip process uses an optimized mold length, faster casting speed, individual water jets and a unique air cushion to minimize heat extraction through the mold and enhance secondary cooling. The direct chill (DC) casting process extracts heat through two mechanisms: first through the mold wall as the molten metal contacts it, and secondly through direct contact (or “direct chill”) with a specifically designed water pattern as the semi-solidified billet exits the mold. 

Very little mold cooling occurs with AirSlip mold technology, leaving the majority of the heat extraction to direct water quench. This leads to a shallow sump and a very thin-shelled, uniform-grained billet with excellent surface smoothness and high pit recoveries for casters.

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