Dry mechanical vacuum pumps in use for VOD and VD-OB processes

The plants are located in a number of regions including the former Soviet Union (10 plants), German-speaking Europe (10 plants), Italy (9 plants), Lidia (6 plants) and Turkey (5 plants). [...]close to 70% are operating in Europe and Turkey with only a few plants in China and north and south America...

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Bibliographic Details
Published inSteel times international Vol. 35; no. 7; p. 23
Main Authors Burgmann, W, Zemp, R, Godat, M
Format Journal Article
LanguageEnglish
Published Redhill Quartz Business Media Ltd 01.10.2011
Subjects
Cooling
Heat exchangers
Load
Pumps
Steel
Europe
Turkey
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Summary:The plants are located in a number of regions including the former Soviet Union (10 plants), German-speaking Europe (10 plants), Italy (9 plants), Lidia (6 plants) and Turkey (5 plants). [...]close to 70% are operating in Europe and Turkey with only a few plants in China and north and south America which indicates that this development is far from finished. While Im freeboard is observed in plants operating with an oxygen blow rate of 10m3/min, this value needs to increase to 1.2 to 1.\n A low S content can also be obtained during vacuum degassing if a preceding ladle furnace treatment with good slag management is provided. [...]it is possible to achieve Ultra Low Carbon (ULC) grades, low carbon ??-killed (LCAK) grades or interstitial free (IF) grades in the process route LF-VCDVD.
ISSN:0143-7798