A vacuum chamber is used for batch de-airing laminates (glass/PVB/glass), especially curved glass. Before the autoclave process. It can also be used for de-airing autoclave free polyvinylbutyral plastic film (PVB).

• A rock wool insulated chamber with a circulation system for heated air
• Vacuum pump with vacuum connections
• Insulated revolving door
• Glass transfer wagons
• A control panel.

Features:

• The air is blown into the chamber by a roof-mounted fan through a channel with wall-mounted tube type heating elements. The temperature is measured by a thermocouple in the blower take-in and regulated by a temperature controller.
• The vacuum system consists of a vacuum pump piping, distributors with balI valves and vacuum rings or bags. Laminated glasses fitted with vacuum rings around the edges or vacuum bags are placed on the transfer wagon. The hoses from the vacuum rings or bags are connected to the balI valves of the vacuum distributor.
• The de-airing cycle starts with cold vacuum
  de-airing to get most of the air our before starting to seal the glass edges in the hot vacuum cycle. Due to the Glassrobots' revolving door design it's easy to move the glasses from the cold to the hot vacuum by simply rotating the door 180°.
• The chamber is heated up to the softening temperature of the PVB. During the timer controlled balancing time the PVB softens and allows the sealing of the glass edges and tacks the glass and the plastic together. Meanwhile a new batch can be connected to the cold vacuum
  de-airing outside the heated chamber.