Electric heating – Inductive heating – With heat exchange
Patent
1996-01-11
1998-06-16
Leung, Philip H.
Electric heating
Inductive heating
With heat exchange
219614, 219659, 53 551, 533737, 53DIG2, 228 493, 1563802, H05B 610, B65B 906
Patent
active
057674914
ABSTRACT:
The disclosure relates to an apparatus for making a continuous welding joint. A material web (20) formed into a tube (8) is sealed along the longitudinal joint seam in that a joint heater (1), preferably an induction heater, is disposed in parallel along the longitudinal joint seam. The sealing operation takes place continuously in a point (18) where a compression device (2) consisting of a pressure roller (9) and a counter pressure roller (10) is provided. The compression device (2) is interconnected together with the joint heater (1), to form a moving unit which may move vertically up and down in relation to the sealing point (18).
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Kohle Christer
Ohlsson Michael
Leung Philip H.
Tetra Laval Holding & Finance S.A.
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