B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
327/42
B23K 25/00 (2006.01) B23K 9/04 (2006.01) B23K 9/18 (2006.01)
Patent
CA 1164056
ABSTRACT OF THE DISCLOSURE - The invention relates to an electroslag surfacing of cylindrical components, such as a rolling- mill roll for iron production and aims to solve the following problems which are: (1) what electrode should be used for supplying a high current to slag, and; (2) how to prevent excess fusion-penetration of the base metal from occurring during the thick surfacing which results in an increase in heat input and a decrease in welding speed or a rising speed of the metal pool. The invention, is characterized in that a multi-phase alternating current power is supplied to slag via a plurality of consumable electrodes in the form of a bar having a large cross section, and further the surfacing is conducted while rotating a workpiece and continuously adding molten metal to the surface of the slag bath. The invention can be mainly utilized for the production and repairing of cylindrical composite components.
367397
Asai Yoshihiko
Hori Masao
Tokumitsu Naoki
Goudreau Gage Dubuc
Nippon Steel Corporation
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