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  • Users: trygw
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  1. trygw

    Coated aluminum corrosion in seawater pump application

    Hey Mike, Thanks a lot for the information. It sounds like its worth at least prototyping and testing. Tryg Waterhouse
  2. trygw

    Coated aluminum corrosion in seawater pump application

    Yes, pumps do tend to leak over time. Ignoring that fact, my question is really specific to the dissimilar metal contact in areas that are not intended to come into contact with salt water. For example, the bolts that hold the cover plate on. They never see any salt water. Would there still be...
  3. trygw

    Coated aluminum corrosion in seawater pump application

    I know the basics about electrolysis and how it corrodes aluminum in salt water. Heres my question though. In a sea water pump application were no electrical current is present, if a coated aluminum housing is used, will the aluminum still corrode due to electrolysis. I'm told that any contact...
  4. trygw

    Using a DC motor to provide load on another motor?

    Im a new test engineer and I've been assigned the task of creating a small motor test stand. I've been told to use a DC motor with varible drive to provide a controlable load to the motors we want to test. Has anyone ever heard of this? What happens if you force a DC motor to spin the opposite...
  5. trygw

    dc electric motor test

    I want to test some small (.06-.75 HP) DC motors. I need to test torque, rpm, voltage and current. Can I use another DC motor and a torque cell as a dyno to test the motors I want. If so, what requirements are there of the "load" motor. Should it have more HP than the test motor or less? Does...

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