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This presentation by Jared Beland explores the various types of weatherproofing techniques, including gaskets, adhesives, overmolding, and ultrasonic welding, for reinforcing structures and preventing fluid or gas leaks. Learn about the applications, materials used, and advantages of each method.
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Weatherproofing Vermont Technical College 2003 Senior Projects I Technical Topic Presentation Created By: Jared Beland
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
Types of Weatherproofing • Gaskets • Adhesives • Overmolding • Ultrasonic Welding Created By: Jared Beland
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
Gaskets Created By: Jared Beland
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
Adhesives Created By: Jared Beland
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
Overmolding Created By: Jared Beland
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
Ultrasonic Welding Created By: Jared Beland
Pros and Cons Matrix Created By: Jared Beland