B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
22/85
B22D 41/08 (2006.01) B22D 11/08 (2006.01)
Patent
CA 1077674
ABSTRACT OF THE DISCLOSURE: A method of starting a pour in continuous casting, comprising pouring steel into an open-ended mould through a nozzle in the bottom of a tundish at a rate substantially determined by the dimensions of the nozzle cross section, forming a connection between the stopping and withdrawing head of a dummy bar and the solidifying casting and withdrawing the casting from the mould when the metal pool in the mould has reached a predetermined level. This method is characterized in that the pouring rate is reduced from the time the metal first enters the mould to the time the metal pool in the mould has reached a required level by the melting away of a fusible tubular choke previously inserted in the nozzle, and that the melting time of the choke is adapted to a desired period by an appropriate choice of its dimensions and of the material of which it is made. A device to start a pour in continuous casting essentially characterized by a tubular fusible metal choke inserted in the nozzle of the tundish.
257117
Hannah Brian
Rohrig Adalbert
Willim Fritz
LandOfFree
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