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Fire-gilding or wash-gilding is a process by which an amalgam of gold is applied to metallic surfaces, the mercury being subsequently volatilized, leaving a film of gold or an amalgam containing 13 to 16% mercury. In the preparation of the amalgam, the gold must first be reduced to thin plates or grains, which are heated red-hot, and thrown ...
The inner raceway of this roller bearing has been burnished by the bearing's rollers. Burnishing is the plastic deformation of a surface due to sliding contact with another object. It smooths the surface and makes it shinier. Burnishing may occur on any sliding surface if the contact stress locally exceeds the yield strength of the material.
French ormolu mantel clock (around 1800) by Julien Béliard (1758 – died after 1806), Paris.The clock case by Claude Galle (1758–1815) Ormolu (/ ˈ ɔːr m ə ˌ l uː /; from French or moulu 'ground/pounded gold') is the gilding technique of applying finely ground, high-carat gold–mercury amalgam to an object of bronze, and objects finished in this way.
“Customers are really gravitating toward our mercury glass ornament sets, which we carry in the traditional Christmas colors of red and green, as well as our silver and gold and burnished metals ...
Depletion gilding relies on the fact that gold is highly resistant to oxidation or corrosion by most common chemicals, whereas many other metals are not. Depletion gilding is most often used to treat alloys of gold with copper or silver. Unlike gold, both copper and silver readily react with a variety of chemicals.
Gold parting is the separating of gold from silver (and other metallic impurities). Gold and silver are often ... The surface was compacted and heavily burnished and ...
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