The evolution of hydrogen from a hot-rolled metal

1974 ◽  
Vol 8 (1) ◽  
pp. 100-101
Author(s):  
V. S. Sapiro ◽  
V. M. Tupilko ◽  
V. T. Tereshchenko
Keyword(s):  
Rolled Metal ◽  
Hot Rolled

Unit for mechanized packaging of bundles of hot-rolled metal

Metallurgist ◽  
1981 ◽  
Vol 25 (6) ◽  
pp. 235-236
Author(s):  
A. P. Budanov ◽  
L. B. Fainberg ◽  
N. E. Shevelin
Keyword(s):  
Rolled Metal ◽  
Hot Rolled

Study of Used Rolls Profile Influence on the Quality of Hot Rolled Metal

2013 ◽  
Vol 814 ◽  
pp. 1-6
Author(s):  
Olga Krivtsova ◽  
Alexandr Viventsev ◽  
Vitaly Talmazan ◽  
Dinislyam Musin ◽  
Alexandr Arbuz
Keyword(s):  
Mathematical Models ◽  
Hot Rolling ◽  
Rolling Mill ◽  
Second Grade ◽  
Rolled Metal ◽  
Hot Rolling Mill ◽  
Hot Rolled ◽  
Work Rolls

The influence of used work rolls profiling on the quality of hot rolled metal was studied. The defect non-flatness is the main reason for hot rolled metal rejection to second grade at the continuous hot rolling mill 1700 of ArcelorMittal Temirtau JSC. The most optimal among studied profiling is concave profiling with average cumulative value ΣΔ=1.71mm. This is evidenced by the least volume of hot rolled metal, rejected to the second grade due to non-flatness.There were mathematical models developed, forecasting the volume of metal, rolled with the defect non-flatness with definite cumulative profiling of work rolls.

Formation of Indices of Flatness and of Cross Section Geometry of Hot-Rolled Metal at 2000 Rolling Mill of NLMK

2019 ◽  
Vol 49 (9) ◽  
pp. 638-641
Author(s):  
A. V. Dolgov ◽  
V. V. Faustov ◽  
S. V. Kudinov
Keyword(s):  
Cross Section ◽  
Rolling Mill ◽  
Rolled Metal ◽  
Hot Rolled ◽  
Cross Section Geometry

Observations on the structure at the transformation interface of pearlite in steel

1990 ◽  
Vol 48 (4) ◽  
pp. 200-201
Author(s):  
F. A. Khalid ◽  
D. V. Edmonds
Keyword(s):  
Room Temperature ◽  
Thin Foil ◽  
Carbon Steels ◽  
Model Alloy ◽  
Growth Interface ◽  
Medium Carbon ◽  
Solution Treated ◽  
Medium Carbon Steels ◽  
Alloy Carbide ◽  
Hot Rolled

The austenite/pearlite growth interface in a model alloy steel (Fe-1 lMn-0.8C nominal wt%) is being investigated. In this particular alloy pearlite nodules can be grown isothermally in austenite that remains stable at room temperature, thus facilitating examination of the transformation interfaces. This study presents preliminary results of thin foil TEM of the austenite/pearlite interface, as part of a programme of aimed at studying alloy carbide precipitation reactions at this interface which can result in significant strengthening of microalloyed low- and medium- carbon steels L Similar studies of interface structure, made on a partially decomposed high- Mn austenitic alloy, have been reported recently.The experimental alloys were made as 50 g argon arc melts using high purity materials and homogenised. Samples were hot- rolled, swaged and machined to 3mm diameter rod, solution treated at 1300 °C for 1 hr and WQ. Specimens were then solutionised between 1250 °C and 1000 °C and isothermally transformed between 610 °C and 550 °C for 10-18 hr and WQ.

Development of trimming technology for hot rolled ultra-low carbon steel

1993 ◽  
Vol 90 (7-8) ◽  
pp. 917-922
Author(s):  
Y. Matsuda ◽  
M. Nishino ◽  
J. Ikeda
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Ultra Low Carbon Steel ◽  
Hot Rolled

Investigation on the control of multiphase flow behavior in a continuous casting tundish during ladle change

2020 ◽  
Vol 117 (6) ◽  
pp. 619
Author(s):  
Rui Xu ◽  
Haitao Ling ◽  
Haijun Wang ◽  
Lizhong Chang ◽  
Shengtao Qiu
Keyword(s):  
Multiphase Flow ◽  
Flow Behavior ◽  
Rolled Strip ◽  
Impact Zone ◽  
Steel Cleanliness ◽  
Carry Over ◽  
Slag Carry Over ◽  
Hot Rolled ◽  
Turbulence Inhibitor ◽  
The Impact

The transient multiphase flow behavior in a single-strand tundish during ladle change was studied using physical modeling. The water and silicon oil were employed to simulate the liquid steel and slag. The effect of the turbulence inhibitor on the slag entrainment and the steel exposure during ladle change were evaluated and discussed. The effect of the slag carry-over on the water-oil-air flow was also analyzed. For the original tundish, the top oil phase in the impact zone was continuously dragged into the tundish bath and opened during ladle change, forming an emulsification phenomenon. By decreasing the liquid velocities in the upper part of the impact zone, the turbulence inhibitor decreased considerably the amount of entrained slag and the steel exposure during ladle change, thereby eliminating the emulsification phenomenon. Furthermore, the use of the TI-2 effectively lowered the effect of the slag carry-over on the steel cleanliness by controlling the movement of slag droplets. The results from industrial trials indicated that the application of the TI-2 reduced considerably the number of linear inclusions caused by ladle change in hot-rolled strip coils.

Hot-rolled strip re-reddening temperature changing law for late ultra fast-cooling in a CSP line

2015 ◽  
Vol 112 (3) ◽  
pp. 305 ◽  
Author(s):  
Lian-yun Jiang ◽  
Guo Yuan ◽  
Jian-hui Shi ◽  
Yue Xue ◽  
Di Wu ◽  
...  
Keyword(s):  
Rolled Strip ◽  
Hot Rolled Strip ◽  
Ultra Fast Cooling ◽  
Fast Cooling ◽  
Hot Rolled
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