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2018 №02 (01) DOI of Article
10.15407/sem2018.02.02 		2018 №02 (03)

Electrometallurgy Today 2018 №02


Electrometallurgy Today (Sovremennaya Elektrometallurgiya), 2018, #2, 19-27 pages
 

Metallurgical characteristics of large slabs, produced by electroslag remelting

Zhou-hua Jiang1, Xu Chen1, Xin Geng1, Qiang Yu2


1School of Metallurgy, Northeastern University.
2School of Information, Northeastern University. Wenhua Rd., Heping district, Shenyang, Liaoning, 110819, PR China. E-mail: jiangzh63@163.com
 
Abstract

Three types of furnaces for electroslag remelting have been designed and manufactured for producing slabs of 50 ton weight with a maximum 960×2000 mm cross section. Production of slabs of more than 20 grades of steels of 640,760 and 960 mm thicknesses, as well as plates from 20 up to 410 mm thickness was organized. Presented are the main peculiar features of ESR furnaces, technology of the process, properties of slabs and super-thick ESR plates, used for hydropower stations. A low-frequency power source, bifilar connection, mobile mould, shielding gases, secondary cooling, control of melting rate and other advanced technologies were used for ESR. The low content of hydrogen, oxygen and inclusions, as well as a good quality of the ESR ingot were obtained due to the technological process optimizing. As a sample of super-thick plates, used for hydropower stations, the thick plates S500Q/Z35 of 265 mm thickness were produced. Ref. 7, Tabl. 12, Fig. 8.

Key words: electroslag remelting; large slab; super-thick plate; steel for hydropower station; property; Z-direction
 
Received:                30.12.17
Published:               25.05.18
 
 
References
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