B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 37/10 (2006.01) B30B 7/02 (2006.01)
Patent
CA 2596808
The invention relates to a press and a method to laminate board-shaped work pieces via pressure and heat. The press comprises an upper press table 1 having an upper press plate 7 and a lower press table 2 having a lower press plate 10, with the upper and/or the lower press plate can be heated. The press further comprises a one or two-part encircling gasket 16, 17, arranged at the upper press table 1 or the upper press plate 7 and/or the lower press table 2 to form a vacuum pressure chamber when the press is closed, means 4 to open and close the press, as well as means to evacuate the vacuum chamber formed by the seal 16, 17. According to the invention the lower press plate 10 can be raised in reference to the lower press table 2 and is arranged such that a work piece 6 located in the press initially does not contact the heated press plate 7, 10 when the vacuum pressure chamber is closed. The lamination method according to the invention is therefore embodied in two steps: first the vacuum pressure chamber is evacuated and only then the work piece is hot pressed.
Marks & Clerk
Robert Buerkle Gmbh
LandOfFree
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