Patent ID: 6032721
Filing Date: 2000-03-07
Classification: B22D

Abstract:
A casting equipment for the continuous or semi-continuous direct chill casting of metal, said equipment comprising:a mold having therein a cavity having an upwardly open inlet leading into said cavity, an intermediate overhang and a lower outlet leading from said cavity, whereby molten metal supplied through said inlet solidifies in said cavity and discharges through said outlet;a vertically movable support at said outlet to support the metal;a water supply for supply of water to chill the metal;said inlet and said overhang being defined by a hot-top formed in refractory insulating material;at least a portion of a wall of said mold defining said cavity being permeable for the supply therethrough of oil and gas into said cavity to form an oil and gas layer between the metal and said portion of said wall, thereby preventing the metal from coming into direct contact with said portion of said wall; andat least said portion of said wall employed for the supply therethrough of oil into said cavity being formed of the same said refractory insulating material forming said hot-top and being integral therewith.