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Sheet-type-composite-material-and-method-and-apparatus-for-manufacturing-the-same

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Sheet type composite material and method and apparatus for manufacturing the same

Details

Inventors: Schertler, Manfred K.;
Assignee:
Primary Examiner: Thibodeau; Paul J.
Assistant Examiner:
Attorney, Agent or Firm: McCormick, Paulding & Huber

The invention concerns a sheet like composite material which consists of a uniformly corrugated web and at least one flat web connected to it by welding, soldering or gluing wherein at least one of the webs is made of metal, and a method and apparatus for continuous manufacture of said composite material.

DETAILED DESCRIPTION I claim: 1.
A process for making a sheet type composite material characterized by the steps of pulling a first sheet metal web from a first supply roll and profiling it between two interengaging profiling rolls at least one of which is heated, pulling a second flat sheet metal web from a second supply roll and continuously guiding it into contact with the profiled sheet metal web, gluing said two webs to one another while they are continuously brought into contact with one another by means of a hot melt material serving as a glue material, heating said first web in advance of its reaching said profiling rolls, heating said second sheet metal web in advance of its being brought into contact with said profiled web, applying said glue to said profiled web prior to said first and second webs being brought into contact with one another, said step of binging said first and second webs into contact with one another being performed while the portion of the profiled web at which the contact takes place is still positioned on one of said profiling rolls, pressing said two sheet metal webs to one another as they are brought into contact with one another and thereafter cooling them off, said steps of pressing and cooling off being performed while the involved portion of said profiled sheet metal web is positioned on said one of said profiling rolls, after said steps of pressing and cooling said two sheet metal webs continuously driving the now joined pair of webs over a flat supporting surface, applying glue to the free profiled crests of the profiled web, continuously driving a third heated flat sheet metal web and bringing it into contact with said free profiled crests and pressing it against said now joined pair of webs, and then cooling the so-formed three layered layup and cutting it to size.
2.
The process defined in claim 1 further characterized by said glue being a thermoplastic polyamide material.
3.
The process defined in claim 1 further characterized by extruding said glue near the location at which said first and second sheet metal webs are brought together and wiping it from a lip extending along an extruder opening by the wave crests of said profiled web

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