Patent ID: 11897028
Assignee: nan
Field: Materials, metallurgy (Chemistry)
Classification: CPC B | IPC B

Claim 0:
1. A process for the casting of metals, comprising the steps of:
preparing at least an aggregate-containing mold with a cavity for castings and a plurality of through holes having cooling nozzles wherein the cooling nozzles are spaced at predetermined intervals and the at least aggregate-containing mold is held at predetermined temperatures to maintain an acceptable level of progressive solidification from a distal end of a casting to a riser or a downsprue;
placing a plurality of venting in the at least an aggregate-containing mold for releasing fluids;
embedding nozzles into the through holes in the at least an aggregate-containing mold;
introducing a molten metal into the mold cavity for forming castings;
delivering a predetermined amount of a selected coolant including water to the tip of each nozzle at predetermined rates, times, and durations to contact external surface of the casting and to directly cool the external surface of the casting in order to maintain an acceptable level of progressive solidification from the distal end of the casting to the riser or downsprue; and
cooling the casting under control to predetermined temperatures before removing the casting out of the molds.