Vacuum Systems For Height Simulation, Storage Application: Industrial

Materials are degassed to eliminate volatile substances. It is insignificant whether solid or liquid substances are involved. Vacuum degassing can for example remove any disagreeable taste or smell which bioplastics/biopolymers may have due to their specific composition; vacuum degassing makes them tasteless. Diener electronic vacuum systems can also be used to remove contaminants such as polycyclic aromatic hydrocarbons from materials.

Another typical application is removing air enclosed in sealing compounds.
A suitable process control is essential for achieving permanently good results in the degassing processes. In most cases, running defined pressure ramps is the key to success here. The most common mistake in degassing processes is pumping off to maximum vacuum only and maintaining this state. This creates a balance, and degassing of the substances does not happen at all or only at a very slow rate.

Another benefit of degassing components is the removal of volatile substances which may result in loss of adhesion when gluing, painting or coating. These substances can be neutralised in a vacuum chamber in a process which is customised to your component. For even better adhesion, opt for subsequent plasma treatment. Thanks to our innovative system, it can be run in the same unit. That's killing two birds with one stone!

Altitude testing
Nowadays, suitability for air transport is mandatory for most components such as electric motors, sensitive sensors or common items such as rechargeable and regular batteries. Primarily lithium batteries must undergo a height simulation pursuant to UN 38.3: The batteries are exposed to a pressure of 116 mbar for more than six hours. While there is pressure equalization in the cargo holds of aircraft, it cannot completely compensate for the pressure fluctuations. Therefore, it is absolutely necessary to have tests and simulations at a pressure of under 800 mbar.