03/20/04Created By: Jared Beland1 Weatherproofing Vermont Technical College 2003 Senior Projects I Technical Topic Presentation.

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Presentation transcript:

03/20/04Created By: Jared Beland1 Weatherproofing Vermont Technical College 2003 Senior Projects I Technical Topic Presentation

03/20/04Created By: Jared Beland2 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. :

03/20/04Created By: Jared Beland3 Types of Weatherproofing  Gaskets  Adhesives  Overmolding  Ultrasonic Welding

03/20/04Created By: Jared Beland4 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.

03/20/04Created By: Jared Beland5 Gaskets

03/20/04Created By: Jared Beland6 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.

03/20/04Created By: Jared Beland7 Adhesives

03/20/04Created By: Jared Beland8 Overmolding Description A process 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.

03/20/04Created By: Jared Beland9 Overmolding

03/20/04Created By: Jared Beland10 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.

03/20/04Created By: Jared Beland11 Ultrasonic Welding

03/20/04Created By: Jared Beland12 Pros and Cons Matrix