Industrial test of a 6-m long bearing steel ingot by electroslag remelting withdrawing process

In this study, the key technologies of a 6-m long bearing steel ingot produced by electroslag remelting withdrawing（ESRW） process, including bifilar mode supply, slag system development, and design of mold, were studied based on the laboratory research achievements. The 6-m long ingot of bearing ste...

Full description

Saved in:
Bibliographic Details
Published in:China foundry 2015-05, Vol.12 (3), p.202-207
Main Authors: Zang, Xi-min, Qiu, Tian-yu, Deng, Xin, Jiang, Zhou-hua, Li, Hua-bing
Format: Article
Language:English
Subjects:
Bearing steels
Electroslag melting
Electroslag remelting
electroslag remelting withdrawing
bifilar mode
slag leakage and steel leakage
slag physicochemical properties
ingot solidification shrinkage
Foundries
Inclusions
Ingots
Iron and steel plants
Macrostructure
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this study, the key technologies of a 6-m long bearing steel ingot produced by electroslag remelting withdrawing（ESRW） process, including bifilar mode supply, slag system development, and design of mold, were studied based on the laboratory research achievements. The 6-m long ingot of bearing steel GGr15 with a cross-section of 300 mm × 340 mm was produced using the ESRW process with a bifilar mode and a multi-taper T-mold in a plant. The testing results show that the melting rate using the ESRW bifilar mode technology is three times faster than traditional electroslag remelting（ESR）, and the power consumption is only 1,320 k Wh per ton steel. Through testing for the chemical composition, macrostructure and inclusions of remelted ingot, it can be concluded that the ESRW bifilar mode technology not only retains the characteristics of traditional ESR, but also improves the production efficiency and reduces the cost compared to traditional ESR.
ISSN:1672-6421
2365-9459
1672-6421