Forming, pressing and laminating with vacuum
Forming, pressing and laminating with vacuum. Popular processes used in many sectors of industry and in manufacturing technology. To join a wide variety of materials together. Or to bring them into a specific shape.
Busch vacuum technology in forming, pressing and laminating with VacuumNo matter which materials are formed, pressed or laminated. Busch offers the optimum vacuum solution to create safe, visually appealing, and long-lasting end products.
Thermoforming is a common process in various packaging applications to create packaging for foodstuffs and other commodities.
In thermoforming, plastic foils are heated to soften them. Vacuum is applied through the mold, and pulls the foil, which has been softened, into the mold. Once the foil has cooled down, it keeps its new shape. The products to be packaged can now be filled in.
Thermoforming of plastics
Thermoforming under vacuum can be used to shape plastic sheets of varying thickness. Therefore, it is a technique perfectly suited for the creation of all kind of plastic parts.
The plastic sheet is heated up in an oven until it is pliable. It can then be stretched into a mold using vacuum. Once brought into the desired shape, it keeps the specific shape of the mold. The thermoformed plastic part is trimmed and becomes a usable product. For example, a plastic toy, a surface part for the interior of a car or any kind of prototype part.
Lamination and veneer pressing of wood
Vacuum can also be used to attach synthetic veneers to furniture surfaces. Or to laminate plastic surfaces onto preformed wood.
The aim of these applications is that the plastic coating or veneer fits perfectly and keeps this shape. Therefore, the right vacuum level and the choice of the perfect vacuum generator are extremely important to ensure that the coating is not damaged during the process.
Solar panel lamination
Lamination under vacuum is an essential process step in the creation of solar panels.
To protect solar modules from stress and weather, the cells are enclosed between glass panes or foils. The laminating process, also called encapsulation, takes place under vacuum. The use of vacuum ensures that the air between the layers that are glued together is entirely removed. And thus ensures a long lifetime of the modules by preventing air bubble formation, delamination and cell breakage.