Method and apparatus for fabricating corrugated board from...

Details Method and apparatus for fabricating corrugated board from... Method and apparatus for fabricating corrugated board from...

B - Operations, Transporting

31

F

271/19, 154/30

B31F 1/28 (2006.01)

Patent

CA 1070229

ABSTRACT OF THE DISCLOSURE Corrugated board is formed by heating the plastic coated bonding surface of a liner web to a plasticizing tempera- ture against the coated surface of a rotating heating drum and, while plasticized, fusing it against the flute crests of a corru- gated medium web. The fusion bonded joints are set in the nip of a chilled pressure roll for stripping of the board unit from the corrugating roll surface. Speed of the single-face unit is primarily controlled as a function of the magnitude of angular wrap of the liner web about the heating drum. The temperature of the bonding surface of the liner web is sensed upon removal from the heating drum for the purpose of speed trim adjustment.

246742

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