dip casting
TRANSCRIPT
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DIP CASTING
Rona Mae L. Taduyo
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DEFINITION:
A casting process that involves repeatedly dipping a product or part of a product into resin.
Commonly used resin material (for metals): extremely low-melting metals (such as lead, tin and zinc )(for plastics): Vinyl plastisol
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Dip Casting is a thermo-fusion process in which a hot metal mold or object is dipped into a room temperature liquid plastic. This process may also be called DIP MOLDING.
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DIP MOLDING PROCESS
used in metal, rubber, and plastic industries. it essentially consists of dripping a shaped
pattern into fluid material and withdrawing it. used extensively to form thin metal cases in
which plastic parts maybe mounted. frequently used to put a plastic coating over
metal objects to give weather-resistant coatings. The toy balloon is an example of a dip-molded rubber product.
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DIP MOLDING PROCESS
The pattern is quickly withdrawn, leaving a thin coating on the pattern.
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PRODUCTS
Tool handles Cleaning (rubber) gloves Balloons Doll parts Electronic parts (for insulation) Plastic Caps, Grips, and Plugs
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ADVANTAGES
it is fast requires very little
equipment inexpensive
DISADVANTAGES
inaccuracy poor control of wall
thickness poor strength. in electronic industry,
only the extremely low-melting metals are being used (such as lead, tin and zinc)
generally restricted to the Zinc- and Aluminum-based alloys.
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