Patent ID: 8652279
Filing Date: 2014-02-18
Classification: B32B

Abstract:
1. A method for the production of sandwich components with an open core structure and a cover layer applied to both sides, wherein the cover layers are formed with a curable plastic material, and the sandwich component is cured in a press under pressure, the method comprising: pressurising the core structure and the cover layer with first and second press areas of the press to create a sandwich component; temperature-controlling the first and second press areas with a heater; introducing a charging gas to the core structure prior to at least partial solidification of the cover layers with at least first and second connection devices of a frame of the press; selecting a charging gas pressure that is less than an operating pressure of the press to substantially prevent the formation of sink marks in the cover layers; acquiring a degree of solidification of the cover layers by a control- and regulating device; varying the charging gas pressure by the control- and regulating device as a function of the degree of solidification of the cover layers, so that the charging gas pressure is gradually increased as a function of the increased degree of solidification of the cover layers.