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Sherardizing

Zinc dust is used in the sherardizing process where work pieces are tumbled with zinc dust in rotating steel dmms which are heated electrically or by gas to 370—420°C (149). The steel parts are uniformly coated with zinc. In the chemical and metallurgical industries, zinc dust is used as a reducing agent, in the manufacture of hydrosulfite compounds for the textile and paper industries, and to enhance the physical properties of plastics and lubricants (2). [Pg.415]

Sherardizing-the process of coating iron or steel with zinc by heating the product to be coated in zinc powder at a temperature below the melting point of zinc. [Pg.49]

Sherardizing No special treatment is required other than the removal of any zinc-corrosion products, dirt or oil, etc. [Pg.134]

Genera Galvanizing Guide, Galvanizers Association (1988) and Inspection of Zinc Sprayed Coalings, Z.D.A. (1968) and Inspection of Sherardized Coalings, Z.D.A. (1985)... [Pg.498]

Sherardizing, Zinc Alloy Rust Proofing Co, Wolverhampton, UK (1975)... [Pg.499]

Sherardizing [After the inventor, Sherard Cowper-Cowles, 1900] A process for coating iron articles with zinc. The articles are placed in a sealed drum with zinc dust and sand. The drum is rotated and maintained at a temperature below the melting point of zinc. The mechanism is not understood. In 1990 the world consumption of zinc for this process was several thousand tons. See metal surface treatment. [Pg.243]

Stelman GS, Woerpel RW, Sherard ES. Treatment of accidental sodium valproate overdose with an opiate antagonist [Letter]. Ann Neurol 1979 6 274. [Pg.224]

SHERARDIZING. The process for applying an adherent protective coating of zinc to steel parts by heating at 700°F (371°C) in contact with zinc dust in a rotating-drum container. [Pg.1472]

Zinc is frequently applied to the surface of iron or steel by other methods. In the Schoop process, molten zinc is sprayed onto the surface by a blast of air in a manner similar to that used in spraying paint. In addition to metals, objects made of wood, leather, paper, and the like may be coated with zinc by this process. In the process of sherardizing, iron is covered with a thin layer of zinc dust at temperatures of 700 to 800°C. Under these conditions, zinc penetrates the surface of the iron to a considerable extent. [Pg.575]

MTiat is the difference in nature and process of manufacture of galvanized iron and Sherardized iron ... [Pg.572]

Use Zinc salts and other zinc compounds, reducing agent, precipitating agent, purifier, catalyst, rust-resistant paints, bleaches, pyrotechnics, soot removal, pipe-thread compounds, sherardizing, decorative effect in resins, autobody coatings. [Pg.1345]

Data from sherardizing 400 70 — — Parabolic rate of growth... [Pg.243]

Cementation 350-800 10-50 75-125 Solid solution of zinc in 6 phase Cementation pack process known as sherardizing... [Pg.261]

See other pages where Sherardizing is mentioned: [Pg.357]    [Pg.418]    [Pg.1203]    [Pg.409]    [Pg.394]    [Pg.487]    [Pg.499]    [Pg.175]    [Pg.1775]    [Pg.1775]    [Pg.1858]    [Pg.234]    [Pg.5177]    [Pg.564]    [Pg.571]    [Pg.309]    [Pg.628]    [Pg.258]    [Pg.253]    [Pg.1119]    [Pg.1203]    [Pg.5176]    [Pg.244]    [Pg.286]    [Pg.217]    [Pg.245]    [Pg.260]    [Pg.261]    [Pg.262]    [Pg.264]    [Pg.267]    [Pg.617]   
See also in sourсe #XX -- [ Pg.9 , Pg.17 , Pg.18 , Pg.28 , Pg.33 , Pg.37 , Pg.62 , Pg.193 , Pg.207 , Pg.212 , Pg.231 ]

See also in sourсe #XX -- [ Pg.355 ]



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