sherardizing

      means of forming a uniform, corrosion-resistant coating of zinc on the surface of iron or steel objects. The process, practiced since about 1900, is named for its English inventor Sherard O. Cowper-Coles. The object is heated in a sealed container with finely divided zinc to a temperature below the point at which zinc melts. The two metals amalgamate, forming alloys of zinc and iron and an external layer of pure zinc in an adherent coating that resists corrosion and also makes an excellent base for paint. Compare galvanizing.

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Universalium. 2010.

Look at other dictionaries:

  • Sherardizing — Vapor galvanizing Va por gal va*niz ing (Metal.) A process for coating metal (usually iron or steel) surfaces with zinc by exposing them to the vapor of zinc instead of, as in ordinary galvanizing, to molten zinc; called also {Sherardizing}.… …   The Collaborative International Dictionary of English

  • sherardizing — Смотри Шерардизация …   Энциклопедический словарь по металлургии

  • sherardizing — sherardize (Amer.) v. protect steel or iron by heating with zinc, galvanize steel or iron with a thin protective layer of zinc by heating it with zinc dust (also sherardise) …   English contemporary dictionary

  • sherardizing — The coating of iron objects with zinc powder by tumbling them in powdered zinc at about 250 375°C …   Dictionary of automotive terms

  • Шерардизация — [sherardizing] разновидность цинкования, заключающаяся в нагреве (при 340 400 °С) стальных изделий в Zn порошке для получения диффузионной поверхностного слоя. Шерардизация проводят во вращающимся или качающемся контейнере. Процесс предложен… …   Энциклопедический словарь по металлургии

  • Cowper-Coles, Sherard Osborn — SUBJECT AREA: Metallurgy [br] b. 8 October 1866 East Harting, Sussex, England d. 9 September 1936 [br] English inventor of the sherardizing process for metal protection. [br] He was the son of Captain Cowper Coles, Royal Navy, the inventor of the …   Biographical history of technology

  • Vapor galvanizing — Va por gal va*niz ing (Metal.) A process for coating metal (usually iron or steel) surfaces with zinc by exposing them to the vapor of zinc instead of, as in ordinary galvanizing, to molten zinc; called also {Sherardizing}. Vapor galvanizing is… …   The Collaborative International Dictionary of English

  • Bodycote International — Infobox Company company name = Bodycote International plc company company type = Public (lse|BOY) foundation = 1923 location = Macclesfield, UK key people = James Wallace, Chairman John Hubbard, CEO industry = Testing products = revenue = £640.5… …   Wikipedia

  • Sherardising — or sherardizing is a method of galvanising also called vapour galvanising. A layer of zinc is applied to the metal target object by heating the object in an airtight container with zinc powder. The temperature that the container reaches does not… …   Wikipedia

  • Galvanisation — d un metal (Me) dans un bain de sulfate de cuivre La galvanisation est l action de recouvrir une pièce d une couche de Zinc dans le but de la protéger contre la corrosion. Cependant, dans l industrie on utilise le terme de galvanisation pour… …   Wikipédia en Français

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