Method for calibration of heating appliance of thermoform machines for heating of thermoplastic semi-finished products made of sheet material and roll material, involves initially heating one heating surface at temperature value

摘要

The calibration method involves initially heating a heating surface at a temperature value, where a reflector (9) is arranged against heating elements. Another temperature value is set as steady state temperature when the reflector is separated, where a heating apparatus is provided with the heating surface made of heating elements and a thermal element. The former temperature value is chosen so that the value is accessible by each heating elements of a heating surface.