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Inalchuq (or Inalchuk) (died 1219) was governor of Otrar in the Khwarezmian Empire in the early 13th century, known mainly for helping to provoke the successful and catastrophic invasion of Khwarezmia by Genghis Khan. Inalchuq was an uncle of Sultan Muhammad II of Khwarezmia. His name meant "little Inal" in his native Turkic, and he held the ...
Chasing (French: ciselure) or embossing is a similar technique in which the piece is hammered on the front side, sinking the metal. The two techniques are often used in conjunction. Many metals can be used for chasing and repoussé work, including gold, silver, copper, and alloys such as steel, bronze, and pewter.
Johnny Tremain is a work of historical fiction written in 1943 by Esther Forbes that is set in Boston prior to and during the outbreak of the American Revolution.Intended for teen-aged readers, the novel's themes include apprenticeship, courtship, sacrifice, human rights, and the growing tension between Patriots and Loyalists as conflict nears.
Metal casting. In metalworking and jewelry making, casting is a process in which a liquid metal is delivered into a mold (usually by a crucible) that contains a negative impression (i.e., a three-dimensional negative image) of the intended shape. The metal is poured into the mold through a hollow channel called a sprue.
The metal is poured in, vaporizing the foam with its heat. In dentistry, gold crowns, inlays and onlays are made by the lost-wax technique. Application of Lost Wax technique for the fabrication of cast inlay was first reported by Taggart. A typical gold alloy is about 60% gold and 28% silver with copper and other metals making up the rest.
First, the lump of silver is placed into a small clay pot and the two are put into a bucket full of hot coals. The temperature is regulated through a bellows that is hand operated by a crank. The melting process takes about ten minutes and then the silver is poured into a small, rod-like mold and cooled by submerging the rod in water.
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