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Weatherproofing

Weatherproofing. Vermont Technical College 2003 Senior Projects I Technical Topic Presentation. Uses for Weatherproofing. A way to keep liquids or particles from entering or exiting through joints of any structure/machine. Helps reinforce structures.

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Weatherproofing

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  1. Weatherproofing Vermont Technical College 2003 Senior Projects I Technical Topic Presentation Created By: Jared Beland

  2. Uses for Weatherproofing • A way to keep liquids or particles from entering or exiting through joints of any structure/machine. • Helps reinforce structures. • Makes structure more aesthetically pleasing depending on applications. : Created By: Jared Beland

  3. Types of Weatherproofing • Gaskets • Adhesives • Overmolding • Ultrasonic Welding Created By: Jared Beland

  4. Gasket Description • Mainly used for engine applications. • Very cost effective. • Used to prevent fluid or gas leaks by providing a barrier between two mating surfaces. • Common materials: Rubber, Graphite, Teflon, Copper, and Silicone. • Can withstand high temperatures and pressure. Created By: Jared Beland

  5. Gaskets Created By: Jared Beland

  6. Adhesive Description • Works like a gasket but starts in a liquid form. • Cheap and easy to use. • Protective coating that seals porous surfaces, fine cracks and voids. • Self curing and hardens to a ceramic like, non porous, impermeable film. • Can withstand tons of hydrostatic pressure. Created By: Jared Beland

  7. Adhesives Created By: Jared Beland

  8. Overmolding Description • Aprocess whereby two different plastic materials are molded together to produce a unique part. • Allows designers to create a strong structural product with a weather protective cover. • More often used if large quantities are being produced. (costly) • Seamlessly integrated and joined. Created By: Jared Beland

  9. Overmolding Created By: Jared Beland

  10. Ultrasonic Welding Description • The process of generating melt at the mating surfaces of two thermoplastic parts through use of high frequency sound energy. • Frequencies of 20, 30 or 40kHz. • Weld times are typically less than 1 second. • Best suited for mass production. • Resultant joint strength approaches that of the parent material. Created By: Jared Beland

  11. Ultrasonic Welding Created By: Jared Beland

  12. Pros and Cons Matrix Created By: Jared Beland

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