Vacuum dispensing means metering and dispensing with self leveling casting resins in a chamber with subatmospheric pressure (approx. 1mbar).
Application: The goal of the vacuum dispensing process is to eliminate any air and humidity present in the component before the dispensing process, so that hollow spaces can be completely filled with casting material.
Target: Bubble-free and consistent filling of components for safeguarding a very high dispensing quality and a brilliant high-voltage and insulating resistance.
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Application Example Potting in a vacuum
1 Filling in a vacuum The potting material already penetrates deeply into the fine gaps of the coil
Cross-section of the coil product
2 Intermediate venting/pressure increase The increased pressure presses the potting medium deeper into the small spaces
3 Covering process with a re-established vacuum The covering process ensures that the component is uniformly covered with the potting medium