What process do you use to remove the air bubbles from the converter? Are the converters Vacuum potted?
The converters are not vacuum potted because we use a special process to remove the air bubbles. The process is as follows:
1- The two component epoxy is mixed and placed under a vacuum for 1 minute to remove any air bubbles created by the mixing process.
2- The plastic case is 1/3 filled with epoxy and allowed to rest
3- The pre-tested converter pcb is inserted into the case and 2/3 filled with epoxy and allowed to rest
4- The part completed converters are placed in a warm oven (30°C) for 20 minutes to allow any air bubbles to rise to the top.
5- The case is sealed with a harder grade of epoxy and baked at 50°C for one hour to cure.
2- In addition, spot checks are made with our X-ray machine to monitor and ensure that air voids are not present in any of our converters.