Research and Application of Basic Tundish Covering Flux

2014 ◽  
Vol 941-944 ◽  
pp. 178-181
Author(s):  
Zhi Zheng Yang ◽  
Gang Qiang Li ◽  
Jiang Ping Rao ◽  
Yan Feng Wang ◽  
Cheng Hong Huang ◽  
...  

The elementary theory of functions of the basic tundish coving flux is analyzed at the beginning of this paper. Several types of the flux used in deferent steel grade include ultra-low carbon steel, low carbon steel and micro-alloyed steel. The result shows that the basic flux with CaO/SiO2 to be 3~5 can help to control the SiO2 be reduced by Al in steel within ±2%, and whole cleaness keeps stable with suitable component and proper process condition, marked with the T[O] content change ranged within 3ppm. But the basicity should be variable considering the productivity for different steel grade.

2015 ◽  
Vol 1089 ◽  
pp. 346-349
Author(s):  
Jiang Ping Rao ◽  
Gang Qiang Li ◽  
Zhi Zheng Yang ◽  
Yan Feng Wang

Fundamental theory of functions of basic tundish coving flux is analyzed at the first step. Several types of the flux used in deferent steel grade include ultra-low carbon steel, low carbon steel and micro-alloyed steel are involved . The result shows that the basic flux with CaO/SiO2 to be 3~5 can help to control the SiO2 be reduced by Al in steel within ±2%, and whole cleaness keeps stable with suitable component and proper process condition, marked with the T[O] content change ranged within 3ppm. But the basicity should be variable considering the productivity for different steel grade.


1993 ◽  
Vol 90 (7-8) ◽  
pp. 917-922
Author(s):  
Y. Matsuda ◽  
M. Nishino ◽  
J. Ikeda

Author(s):  
Lei Cao ◽  
De-li Shang ◽  
Xin-gang Ai ◽  
Peng-liang Jin ◽  
Yuan-you Xiao ◽  
...  

Calphad ◽  
1986 ◽  
Vol 10 (2) ◽  
pp. 117-128 ◽  
Author(s):  
M. Grujicic ◽  
I. Wang ◽  
W.S. Owen

Author(s):  
Yoshikazu Todaka ◽  
Hironori Nagai ◽  
Yosuke Takubo ◽  
Miki Yoshii ◽  
Masaaki Kumagai ◽  
...  

2021 ◽  
Vol 98 ◽  
pp. 8-13
Author(s):  
Dung Ngo Quoc ◽  
◽  
Viet Nguyen Hoang

MS1200 steel grade is now widely utilized in the automotive sector because it is a good solution for the current trend of vehicle chassis frame construction. This research presents a technology procedure for producing MS1200 steel grade from low carbon steel scrap and sponge iron – a product of MIREX Vietnam. The smelting using up to 30 % sponge iron briquettes combined with low carbon scrap, FeSi, FeMn, FeCr, FeTi,… was realized in a medium frequency induction furnace. The heat treatment for forged steel was performed to obtain required properties. The steel product has the following properties: tensile strength σb = 1280 MPa, yield strength σ0.2 = 990 MPa and impact toughness ak = 769 J/mm2, that meets the need of industrial use.


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