Thread: Discussion Stator coating
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Old Aug 21, 2012, 02:59 AM
chuck75 is offline
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Long ago, I worked in a GE plant that made relays, transformers, and a few motors.
One of the processes used was with a very thin epoxy.
You pulled a vacuum on the epoxy as a preliminary step, then placed it and the stator in a vacuum chamber. After pulling down the chamber, the stator was placed in the epoxy (actually several at once), and the vacuum increased, then released. The stators were removed from the vacuum chamber, and the epoxy cured in an oven.
After I quit, and went to work in the defense industry (1970s), more and more of the plants products were transferred overseas.
Eventually, the motor production was moved to Mexico, and totally different designs were used. (less expensive, less durable, etc)
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