Patent ID: 8418746

Claim:
A continuous casting system comprising: (i) an enclosed area comprising devices adapted to cut and transport a metal article, wherein the enclosed area is kept at a substantially constant ambient temperature of −190 °C and a pressure pof 1 Bar; (ii) a hot casting mold comprising a heating device with an adjustable power output so as to prevent leakage at a cross section of the solidifying molten metal article, located at, near or just inside an outlet of the hot casting mold; (iii) an ejecting system comprising an ejector adapted to eject liquid nitrogen and being located inside the hot casting mold, a device connected to the ejector and adapted to feed and ration the ejected liquid nitrogen, and a heat insulating material covering the outlet of the hot casting mold where the ejected liquid nitrogen comes into contact with the metal article; (iv) a movable guidance traction device adapted to facilitate variation of the continuous casting speed and to adjustably position where the molten metal solidifies, so as to cooperate with an adjustable quanitity of the ejected liquid nitrogen, (v) a gas exhaustsystem configured to remove nitrogen gas produced by contact of the ejection liquid nitrogen with the metal article; and (vi) an auxiliary device adapted to feed and pour the molten metal.