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Potting of coils in a housing of power electronics or inverters

Srcoll

Dispensing methods

Potting and vacuum potting

Optimal protection for electronic components is provided by the dispensing process of potting under atmosphere or under vacuum.

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The potting of components is chosen to protect sensitive components, eliminate dust, temperature-related influences, moisture or increase service life. The encapsulation of electronics is also one of the applications of this dispensing process. Components are filled or poured with low-viscosity potting materials such as polyurethanes (PU), epoxy resins (epoxy), silicones.

The material preparation should be selected ideally for the potting medium and according to the application. The reaction casting resin is filled directly into the product through a dispensing head (1K, static, dynamic). Subsequently, curing takes place via time, temperature, UV or humidity.

Typical applications are pacemakers, cable bushings, sensors or electronic components.

Vacuum potting

By potting under vacuum, components can be optimally protected from external influences. Before the potting process, air and moisture are removed from the components by vacuum. Components with geometries that are difficult to vent, coils, transformers or wound goods can be potting free of air bubbles. Potting under vacuum guarantees an even distribution of the potting material.

Vacuum dispensing machines

Potting applications

During potting, components are filled with a low-viscosity potting material to protect them from external influences.

Curing & preheating

Industrial ovens

The industrial ovens are used to cure potting compounds such as epoxy resins, polyurethanes and silicones or to preheat components to a specific temperature. For optimum potting results and the shortest possible cycle time, the components are in many cases preheated and the dispensed product is cured in a horizontal conveyor oven to ensure handling.

Read more about industial ovens

Material preparation & dispensing systems

Technology Center

Together we can move forward – benefit from our expertise and many years of experience in dispensing technology at our Technology Center. bdtronic brings together specialists with comprehensive knowledge of component and production optimization. Work with us, the leading dispensing equipment manufacturer, to develop the optimal dispensing process for your requirements. Our interdisciplinary team from various specialist disciplines – from chemists with doctorates to engineers and plant mechatronics engineers – works on your applications in our Technology Center.

More than 20 experts in dispensing technology determine the appropriate process parameters in application tests – from prototypes to original components. We produce A, B, and C samples using our in-house technology. We also know the material manufacturers and work closely with them to incorporate further expertise. After extensive testing, we make well-founded recommendations and provide you with a detailed test report containing all the parameters tested.

Develop the perfect process