scholarly journals Casting properties of ASTM A128 Gr. E1 steel modified with Mn-alloying and titanium ladle treatment

China Foundry ◽  
2021 ◽  
Vol 18 (3) ◽  
pp. 199-206
Author(s):  
Uğur Gürol ◽  
Erdal Karadeniz ◽  
Ozan Çoban ◽  
Süleyman Can Kurnaz
Keyword(s):  
Ladle Treatment

Strategy of automation of electric arc heating of steel melt in ladle-furnaceStrategy of automation of electric arc heating of steel melt in ladle-furnaceStrategy of automation of electric arc heating of steel melt in ladle-furnace

2021 ◽  
Vol 77 (1) ◽  
pp. 20-27
Author(s):  
E. B. Agapitov ◽  
M. A. Lemeshko ◽  
M. S. Sokolova
Keyword(s):  
New Technology ◽  
Electric Energy ◽  
Ladle Treatment ◽  
Electric Arc ◽  
Ladle Furnace ◽  
Energy Supply System ◽  
Heating Efficiency ◽  
Melt Treatment ◽  
Electric Arc Heating ◽  
Arc Heating

Prices hike for consumable materials and energy carriers, increase of requirements to steel quality stipulate the items of intensification of ladle treatment processes and decrease of their energy- and material capacity. Analysis of energy losses in ladlefurnace accomplished, as well as basic factors effecting the energy costs during treatment analyzed. A methodology elaborated for making thermal balance of ladle-furnace: it was proposed to present the melt treatment process in ladle-furnace as a series of separate operations, each having specific features of the process (heating, desulphurization, alloying) and their combination. Based on analysis of 20 thousand heats passports at ladle-furnace of MMK BOF shop, a mathematical model of energy supply system of ladle-furnace was elaborated. Based on the analysis made, a strategy of heating automation was proposed. In particular, electric losses were emphasized, t. e. total losses of electric arc energy, in which provisionally losses at arc open part radiation were included. Control of those flows creates conditions for heating efficiency increase. Conclusions were made that decrease of electric losses is observed at prolonged (about 8−12 min) heating periods and sufficient amount of slag, as well as at injection of additives after heating. Such a mode provides decrease of thermal losses by 4−5%. A new technology of steel melt treatment in ladle-furnace was proposed, characterized by decreased consumption of electric energy.

Formation of Nonmetallic Inclusions during Ladle Treatment of Pipe Steels

2021 ◽  
Vol 2021 (7) ◽  
pp. 864-873
Author(s):  
A. Yu. Em ◽  
O. A. Komolova ◽  
A. M. Pogodin ◽  
K. V. Grigorovich
Keyword(s):  
Nonmetallic Inclusions ◽  
Ladle Treatment ◽  
Pipe Steels

scholarly journals Comparative Study on the In-Ladle Treatment Techniques for Nodulizing the Iron’s Graphite

2021 ◽  
Vol 15 (4) ◽  
pp. 504-509
Author(s):  
Imre Kiss
Keyword(s):  
Cast Iron ◽  
Ductile Iron ◽  
Treatment Process ◽  
Calcium Carbide ◽  
Ladle Treatment ◽  
Steel Scrap ◽  
Steel Sheets ◽  
Treatment Techniques ◽  
Molten Cast Iron ◽  
Flow Through

The objectives of this research is to study and understand the nodulizing of ductile iron using in-ladle treatment process. Among the more common nodulizing agents is magnesium (Mg) which is conventionally added to the cast iron by combining suitable alloys of one or both of these elements with molten cast iron. Depending on the characteristics of each master alloy used as nodulizer, different treatment methods and techniques are used, among these, the most widely used being in-ladle, in-mould, and flow-through, the first being the most used. This research deals with the parameters, that affect the quality of ductile iron produced using in-ladle treatment process. The parameters involved are the percentage of magnesium–ferrosilicon (Fe–Si–Mg) used and the nodulizing technique. In-ladle treatment used consists of a deep pocket into the bottom of ladle, in which magnesium–ferrosilicon is placed into it together with a steel scrap barrier (steel sheets) or calcium carbide. This study, take into account, the degree of assimilation of magnesium, which shows the performance of the chosen process, depending on the nodulizer used and the temperature of the treatment.

A basic monolithic lining of steel-teeming ladles for ladle treatment of steel

Refractories ◽  
1984 ◽  
Vol 25 (9-10) ◽  
pp. 601-604
Author(s):  
L. M. Demidenko ◽  
Yu. D. Kuznetsov ◽  
Zh. N. Demidova
Keyword(s):  
Ladle Treatment ◽  
Monolithic Lining ◽  
Ladle Treatment Of Steel

scholarly journals Effective Materials from Recycled Aluminum Waste for Steel Ladle Treatment

2020 ◽  
Vol 718 ◽  
pp. 012019
Author(s):  
L V Tribushevskiy ◽  
G A Rumyantseva ◽  
B M Nemenenok
Keyword(s):  
Ladle Treatment ◽  
Steel Ladle

Study of slag/metal interface in ladle treatment

2006 ◽  
Vol 33 (6) ◽  
pp. 454-464 ◽  
Author(s):  
P. Dayal ◽  
K. Beskow ◽  
J. Björkvall ◽  
Du Sichen
Keyword(s):  
Ladle Treatment ◽  
Metal Interface

Study of inclusion removal mechanism around open eye in ladle treatment

2007 ◽  
Vol 34 (3) ◽  
pp. 253-261 ◽  
Author(s):  
Y. J. Kang ◽  
L. Yu ◽  
Du Sichen
Keyword(s):  
Ladle Treatment ◽  
Removal Mechanism ◽  
Inclusion Removal

Reoxidation during ladle treatment

2003 ◽  
Vol 30 (2) ◽  
pp. 101-105 ◽  
Author(s):  
B. Coletti ◽  
B. Gommers ◽  
C. Vercruyssen ◽  
B. Blanpain ◽  
P. Wollants ◽  
...  
Keyword(s):  
Ladle Treatment
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