THERMAL MOLDING

Sheet or film manufactured by the calendering technology or the extrusion technology is heated to soften, and then air in the metal mold is sucked out to press the melt material at an ambient pressure. This is called "Vacuum Molding", which is used for the production of thin packaging material such as the egg package, the food tray, the disposable cup, or the soybean cake package. There is another technology to press the melt material to the metal mold from the upper section by compressed air, while air in the metal mold is sucked out. This technology is called "Air Pressure Molding", which is best suitable for production of deep-drawing articles.