Dip casting
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Dip casting is a process that involves repeatedly dipping an object into a liquid material to coat it in a thin layer. The dip casting process works by dipping a hot mold or metal object into room temperature liquid plastic or low-melting metals like lead, tin, and zinc, then quickly withdrawing it to leave a thin coating. Dip casting is used in industries like metal, rubber, and plastics to form thin coatings and make products like tool handles, gloves, balloons, and electronic parts for insulation.
Dip casting
- 1. DIP CASTING Rona Mae L. Taduyo
- 2. 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
- 4. 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.
- 5. 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.
- 6. DIP MOLDING PROCESS The pattern is quickly withdrawn, leaving a thin coating on the pattern.
- 7. PRODUCTS Tool handles Cleaning (rubber) gloves Balloons Doll parts Electronic parts (for insulation) Plastic Caps, Grips, and Plugs
- 9. 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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Editor's Notes
- #3: Repeated dipping results in a thicker coating of resin.
- #4: In the dip casting process, a male permanent mold is dipped into a molten metal and then removed from the metal to solidify on the male mold before the shell is removed.
- #6: The temperature of the pattern causes the metal or plastic to solidify much as in the slush-molding process. The pattern is quickly withdrawn, leaving a thin but somewhat irregular coating on the pattern.