Principles of Vacuum Forming :
The technology of Vacuum Forming is a method for thermo-forming. It is a method of using thermoplastic sheet to make an opening of the housing of the article. Cut the plastic sheet into special size first, and then heat and soften the sheet through the huge pressure difference on both sides of the sheet or mechanical pressure, this can make the sheet attached with the surface of the mold after heating and deforming, next through cooling and shaping, the sheet can be vacuumed into various shapes of cover, plastic trays, bubble shell etc.
The technology of vacuum forming relied on vacuum force which can make the sheet achieve tensile deformation. Vacuum force is easy to be realized, grasped and controlled, so it is the earliest, a thermal forming method ,which is widely used currently.
This type machine can be used for plastic film for all kinds, such as toys, hardware, food, electronics, medicine, with a transparent film coating repacked in a board, form a seal packing.
This type machine can also produce plastic ceiling panel, cake boxes, lunch boxes, automobile materials and sanitary materials etc, which can be produced with three-dimensional relief pattern like 3D advertisement products.
Suitable material: PVC, PET, PP, PC, ABS, PS, EPS, HIPS, LDPE, HDPE and all thermoplastic sheet.
Introduction of Vacuum Forming Machine
1.This machine is automatic. Just after placing plastic sheet onto the frame, then heating, forming, cooling, can be done automatically.
2.The control board is near the operator, so it can be operated easily, greatly improve the efficiency of production.
3.The far-infrared ceramic heating elements can control every single block heater temperature, more power-saving features, and reducing production cost.
4.The furnace is guided automatically.
5.The cooling system is independent by cold water.
6.This machine can form all kinds of blisters just replace mould.