Ads
related to: lost wax patterns catalog store hours today open
Search results
Results From The WOW.Com Content Network
Produce wax patterns: Although called wax patterns, pattern materials may also include plastic and frozen mercury. [6] Wax patterns can be produced in one of two ways. In one process, the wax is poured into the mould and swished around until an even coating, usually about 3 mm (0.12 in) thick, covers the inner surface of the mould.
The lost-wax technique did not appear in northern China until the 6th century BC. [19] Lost-wax casting is known as rÅgata in Japanese, and dates back to the Yayoi period, c. 200 BC. [16] The most famous piece made by cire perdue is the bronze image of Buddha in the temple of the Todaiji monastery at Nara. [16]
Evaporative-pattern casting is a type of casting process that uses a pattern made from a material that will evaporate when the molten metal is poured into the molding cavity. The most common evaporative-pattern material used is polystyrene foam. [1] The two major evaporative-pattern casting processes are: [1] Lost-foam casting; Full-mold casting
AOL latest headlines, entertainment, sports, articles for business, health and world news.
Lost-wax casting – Metal casting by the Indus Valley civilization began around 3500 BC in the Mohenjodaro area, [133] which produced one of the earliest known examples of lost-wax casting, an Indian bronze figurine named the "dancing girl" that dates back nearly 5,000 years to the Harappan period (c. 3300–1300 BC).
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Lost-foam casting (LFC) is a type of evaporative-pattern casting process that is similar to investment casting except foam is used for the pattern instead of wax. This process takes advantage of the low boiling point of polymer foams to simplify the investment casting process by removing the need to melt the wax out of the mold.
Wax patterns are used in an alternative casting process called investment casting. A combination of paraffin wax, bees wax and carnauba wax is used for this purpose. In this case the wax "pattern" is melted out from the mould cavity which is normally a rigid plaster like material rather than sand, so the wax "pattern" can only be used once. [5]