C - Chemistry – Metallurgy – 21 – C
Patent
C - Chemistry, Metallurgy
21
C
53/102
C21C 7/04 (2006.01) B65H 49/02 (2006.01) B65H 49/08 (2006.01) C21C 7/00 (2006.01) C21C 7/06 (2006.01)
Patent
CA 1234495
ABSTRACT OF THE DISCLOSURE A method of injection of wire into molten steel wherein a coil of the wire is positioned around a mandrel, and the wire is pulled from the coil in the axial direction of the mandrel and is fed by transport means into the molten steel. To avoid the need to rotate the coil and yet to achieve smooth uncoiling and also to permit two coils to be uncoiled successively without interruption the coil is a self-supporting parallel-wound coil, which is resiliently clamped around at least part of its outer surface over its whole axial length. The axial length of the mandrel is greater than that of the coil and, at the start of uncoiling of the coil there is a gap of at least 5 cm between the inside surface of the coil and the mandrel. The wire is pulled from the inside of the coil from the inside of the coil through a ring which is mounted around the mandrel axially spaced from the coil and which has a slot-shaped radial extension open to the interior of the ring. The wire end on the outside of the coil is connected to the wire end on the inside of a further such coil through the said slot- shaped radial extension.
491304
Hoogovens Groep Bv
Ridout & Maybee Llp
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