Metal fusion bonding – Process – With shaping
Patent
1992-03-09
1993-04-27
Heinrich, Samuel M.
Metal fusion bonding
Process
With shaping
228176, 228 57, 228 45, 228178, 164476, 164477, 295277, B23K 700, B23K 2000, B22D 1100, B22D 1112
Patent
active
052054713
ABSTRACT:
Methods and apparatus for joining conveyed steel pieces in a hot rolling mill are disclosed. A joining apparatus having a series of fusing torches extending laterally across the steel path is used, either before a rough rolling stage or between rough rolling and finish rolling. The fusing torches which operate at the side edges of the pieces to be joined are controlled to have independent movement by a controller, in such a way that the time elapsing between fusing and pressing together of portions at the lateral edges of the join line does not exceed a critical time for regrowth of oxide scale. Various mounting and control techniques for the fusing torches are proposed, including the possibility of two independently-driveable sets the controller can base its control of the torches on steel strip width information obtained from the processing path.
REFERENCES:
patent: 4294394 (1981-10-01), Iida et al.
patent: 4552299 (1985-11-01), Sendzimir
patent: 4706871 (1987-11-01), Kajiwara et al.
patent: 5121873 (1992-06-01), Sekiya et al.
Kinose Ryohei
Sekiya Teruo
Yoshimura Yasutsugu
Heinrich Samuel M.
Hitachi , Ltd.
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