Electric heating – Metal heating – For bonding with pressure
Patent
1993-03-04
1994-09-13
Evans, Geoffrey S.
Electric heating
Metal heating
For bonding with pressure
219 84, 219118, B23K 1108, B23K 1106
Patent
active
053470990
ABSTRACT:
Methods and device for the electric welding of at least two sheets of multilayer structure (2,5), termed sandwich sheets, each including at least two metal sheets interconnected by a film of polymer. The method includes putting the inner faces (3a, 7a) of the sandwich sheets (2,5) into contact in a partial overlapping region, applying on the opposite faces (4a, 6a) of the sandwich sheets at least two rollers each having two parts and placed in confronting relation to each other in alignment with the overlapping region, supplying electric power to at least the second part of each roller (9,10), exerting a clamping force on the overlapping region of the sandwich sheets (2,5) using the rollers so as to bring the second part of each of the rollers into contact with the inner face of the confronting sandwich sheet and shifting the rollers (9,10) along the overlapping region.
REFERENCES:
patent: 2957975 (1960-10-01), Pearson
patent: 3281569 (1966-10-01), Bachofner
patent: 3489446 (1970-01-01), Williams
patent: 3614374 (1971-10-01), Williams
patent: 3881083 (1975-04-01), Bromley
patent: 4650951 (1987-03-01), Koga et al.
Gheysens Thierry
Gissinger Frank
Evans Geoffrey S.
Sollac
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