3.Machining and processing HPL
The following processes are only suitable for producing convex curves. All currently known pass-through processes use the same principle and only differ in the use of different adhesives and the consequently required special machine equipment. The postforming HPL is first bonded to the large surface area of the substrates. These parts then run through the forming machine which can be adjusted to the required width.
When they run through the machine, generally suitable adhesives are first applied to the rear side of the protruding HPL and the routed profiles of the substrate sheets. Then, the areas to be formed are heated to the required forming temperature with infrared radiators and guided around the profile of the substrate sheet using a forming rod. In the final phase, profile rollers press the HPL into the final shape and generate the contact pressure between substrate and HPL required for bonding.
1 Haeating | 2 and 3 staged forming process | 4 Cooling
