Patent ID: 6680017
Filing Date: 2004-01-20
Classification: B29C,B32B

Abstract:
A process for the continuous production of plastics/metal composite panels, by melt extrusion of thermoplastic polymers between at least two metal sheets, comprising the steps of:supplying at least two metal sheets, at least two feeds for the metal sheets, one for each sheet, and at least two perforating rollers; perforating at least two metal sheets with the at least two perforating rollers; continuously guiding at least two, optionally preheated by pressing rollers or pressure clamps, metal sheets with perforations therein, each from a holder one above and the other below a plastics extrusion nozzle, to a heatable melting control system and positioning the metal sheets with perforations in spaced relationship from one another with calibrators, wherein the calibrators are arranged immediately adjacent the feeds ant the melting control system; extruding plastics material into the space between each of the two sheets in order to produce a webbed connection in the area of the perforations in the sheets; cooling down of the plastics melt, and fixing the sheets with regard to their distances apart as the continuous panel is drawn off.