C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
22/56, 22/59, 11
C22B 9/18 (2006.01) B21B 27/00 (2006.01) B21B 28/02 (2006.01) B22D 11/04 (2006.01) B22D 23/10 (2006.01) B23K 25/00 (2006.01)
Patent
CA 1329692
ABSTRACT OF THE DISCLOSURE Apparatus for cladding and thus reclaiming a worn rolling mill roll by fusing a surface layer thereon, comprises an electro-slag mould (7); a slewable derrick structure (Fig. 2) able to feed a split tubular, consumable electrode (51) into the mould; a turn-table (8) supporting the mould; a tiltable induction furnace (55) to charge the mould with molten flux; product transport means (Fig.1) to lift a worn mill roll through the mould and withdraw it downwardly from the mould as cladding proceeds and comprising rigid hangers (12) extending downwardly from the turn-table, an elevator carriage (14) with a product holder and adapter including a mould plug (29), and power driven jack screws (19) to raise and lower the carriage (14); and drive means (9,11) to cause rotary oscillation of the turn- table and the components carried by it, including the roll, relative to the electrode. A method of cladding a worn roll by the electro-slag process is also disclosed wherein the mould and roll are rotationally oscillated about the axis of the roll relative to the electrode, as cladding proceeds.
595265
Broken Hill Proprietary Company Limited (the)
Sim & Mcburney
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