Process and apparatus for the continuous production of metal-cla

Details Process and apparatus for the continuous production of metal-cla Process and apparatus for the continuous production of metal-cla

1984-11-20

1986-07-08

Dawson, Robert A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156324, 1565835, 219469, 432228, B32B 3112

Patent

active

045991286

ABSTRACT:
The invention relates to a process and apparatus for the continuous production of metal-clad laminates, in particular, for the manufacture of electric printed circuit boards, consisting of an electrically insulating core layer and a metal foil covering one or both surfaces of this layer, wherein the metal foil unwound from a supply roll and pre-heated is bonded in a dual-belt press under the influence of pressure and heat to the core layer. In order to obtain an immaculate laminate surface, provision is made for the metal foil to be pre-heated while it is still wound on the supply roll. The source of the pre-heating of the metal foil is a heatable core of the supply roll, the pre-heated metal foil on entering the dual-belt press is pressed against the press belt of the press, and the metal foil supply roll and the region of the foil which is pressed against the press belt are arranged in a common clean air area.

REFERENCES:
patent: 4225376 (1980-09-01), Berg
patent: 4336096 (1982-06-01), Dedekind

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