Polyurethane-mold parts manufacturing method for use in interior components of vehicle, involves foaming lightweight core with compact load-bearing polyurethane system for enabling cohesive connection with material of fixing pins

摘要

The method involves providing a region with rear undercuts foamed during foaming process in a pre-fabricated lightweight core (2) and in operation of lightweight core such that the lightweight core is inserted in a closed foaming tool. A surface area of the lightweight core is aligned at definable distance from surfaces of the foaming tool by protruded fixing pins (3). The lightweight core is foamed with a compact load-bearing polyurethane system (1) for enabling a cohesive connection with a material of the protruded fixing pins. An independent claim is also included for a polyurethane-mold part comprising a pre-fabricated lightweight core.