Quality of High-Carbon Chromium Bearing Steel Produced in the Electric Arc Furnace—Ladle Furnace—RH Vacuum Degassing Vessel—Vertical Continuous Caster

2009 ◽  
pp. 278-278-15 ◽  
Author(s):  
T Uesugi ◽  
K Tsubota
Keyword(s):  
Continuous Caster ◽  
Electric Arc Furnace ◽  
Bearing Steel ◽  
Electric Arc ◽  
Ladle Furnace ◽  
Arc Furnace ◽  
High Carbon ◽  
Vacuum Degassing

scholarly journals Research on Transient Power Quality of Large-capacity Electric Arc Furnace

2021 ◽  
Author(s):  
Liu Yang ◽  
Qinyue Tan ◽  
Di Xiong ◽  
Zhengguang Liu
Keyword(s):  
Power Quality ◽  
Reactive Power ◽  
Short Circuit ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Normal Operation ◽  
Arc Furnace ◽  
Three Phase ◽  
Transient Power Quality

The overrun of transient power quality index caused by the large-capacity electric arc furnace (EAF) has become a prominent problem affecting the safe and stable operation of the power system. (1) In this paper, the relationship between arc furnace volt-age and current is derived based on the different stages of arc combustion, and the random variation of chaotic phenomenon of the arc voltage are simulated. Established an EAF model suitable for the study of transient power quality problems. (2) Take 50t AC EAF as an example to analyze the reactive power impact and the influence on the point of common coupling (PCC) voltage caused by the three-phase short circuit of the electrode. The results show that the experimental results are consistent with the theoretical analysis, verifying the correctness and effectiveness of the model. (3) When the three-phase short-circuit occurs, the reactive power impact is nearly 6 times that of normal operation, the short-circuit current is 2.66 times that of normal operation, and the effective value of the PCC voltage has dropped by 40.37%, which provides a theoretical basis for real-time compensation of impulsive reactive power and improvement of the transient power quality of the EAF.

scholarly journals Changes in Hydrogen Content During Steelmaking

2015 ◽  
Vol 60 (1) ◽  
pp. 295-299 ◽  
Author(s):  
K. Vrbek ◽  
J. Lamut ◽  
M. Marolt ◽  
M. Knap
Keyword(s):  
Hydrogen Content ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Engineering Industry ◽  
Ladle Furnace ◽  
Arc Furnace ◽  
Measurement Results ◽  
Industry Applications ◽  
Steel Grades ◽  
Steelmaking Technology

Abstract Štore Steel produces steel grades for spring, forging and engineering industry applications. Steelmaking technology consists of scrap melting in Electric Arc Furnace (EAF), secondary metallurgy in Ladle Furnace (LF) and continuous casting of billets (CC). Hydrogen content during steelmaking of various steel grades and steelmaking technologies was measured. Samples of steel melt from EAF, LF and CC were collected and investigated. Sampling from Electric Arc Furnace and Ladle Furnace was carried out using vacuum pin tubes. Regular measurements of hydrogen content in steel melt were made using Hydris device. Hydrogen content results measured in tundish by Hydris device were compared with results from pin tube samples. Based on the measurement results it was established that hydrogen content during steelmaking increases. The highest values were determined in tundish during casting. Factors that influence the hydrogen content in liquid steel the most were steelmaking technology and alloying elements.

Wasteless Joint Processing of Ladle Furnace and Electric Arc Furnace Slags

2021 ◽  
Vol 51 (3) ◽  
pp. 156-162
Author(s):  
O. Yu. Sheshukov ◽  
D. K. Egiazar’yan ◽  
D. A. Lobanov
Keyword(s):  
Electric Arc Furnace ◽  
Electric Arc ◽  
Ladle Furnace ◽  
Arc Furnace ◽  
Joint Processing

scholarly journals On optimization of steelmaking in electric arc furnace and its ladle treatment in ladle-furnace

10.12737/4471 ◽  
2014 ◽  
Vol 14 (2) ◽  
Author(s):  
Aleksandr Kem ◽  
Vladimir Kazartsev ◽  
Eduard Merker ◽  
Denis Harlamov
Keyword(s):  
Electric Arc Furnace ◽  
Ladle Treatment ◽  
Electric Arc ◽  
Ladle Furnace ◽  
Arc Furnace
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