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Sherardising is ideal for small parts and parts that require coating of inner surfaces, such as batches of small items. Part size is limited by drum size. It is reported that pipes up to 6 m in length for the oil industry are sherardised. If the metal surface is free of scale or oxides, no
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dust and possibly an inert filler, such as sand. At temperatures above 300 °C, zinc evaporates and diffuses into the steel substrate forming diffusion bonded Zn-Fe-phases.
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BS EN ISO 14713-3: 2017 Zinc coatings. Guidelines and recommendations for the protection against corrosion of iron and steel in structures. Part 3. Sherardizing
62:) who invented and patented the method c. 1900. This process involves heating the steel parts up to c. 500 °C in a closed rotating drum that contains metallic
134:, Sherard & Cowper-Coles, "Process of depositing metals on metallic surfaces and the product thereof", published 1902/6/3
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BS EN 13811: 2003 (withdrawn replaced by BS EN ISO 17668:2016) Sherardizing. Zinc diffusion coatings on ferrous products. Specification
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pretreatment is needed. The process is hydrogen-free, hence hydrogen embrittlement is prevented.
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Eric J. Mittemeijer; Marcel A. J. Somers; F. Natrup; W. Graf (21 November 2014).
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193:"20 - Sherardizing: corrosion protection of steels by zinc diffusion coatings"
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Thermochemical
Surface Engineering of Steels: Improving Materials Performance
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This article is about the galvanisation process. Not to be confused with
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H. G. Arlt, "Finishes on the Metal Parts of
Telephone Apparatus",
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54:. The process is named after British metallurgist
27:Process of galvanization of ferrous metal surfaces
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86:and 10 pfennig coins were sherardised.
46:of ferrous metal surfaces, also called
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199:. Elsevier Science. pp. 737–.
223:, Volume 9(4), 175 (December 1932)
151:"Original Patent (Google patents)"
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56:Sherard Osborn Cowper-Coles
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112:Corrugated galvanised iron
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164:Porter, Frank C. (1991).
78:During and shortly after
221:Bell Laboratories Record
58:(son of naval inventor
107:Hot-dip galvanization
245:Corrosion prevention
132:US patent 701298
60:Cowper Phipps Coles
240:Chemical processes
48:vapour galvanising
206:978-0-85709-652-4
177:978-0-8247-8340-2
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40:Sherardising
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34:Shepardizing
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18:Sherardizing
82:, German 5
80:World War I
74:Application
234:Categories
118:References
101:See also
90:Standard
84:pfennig
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255:Zinc
201:ISBN
172:ISBN
64:zinc
50:and
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