Inclusions, lining materials and nozzle clogging during middle carbon steel billet continuous casting process

2008 ◽  
Vol 105 (2) ◽  
pp. 72-79 ◽  
Author(s):  
Shihong Liu ◽  
Xinhua Wang ◽  
Xiangjun Zuo ◽  
Yufeng Wang ◽  
Lifeng Zhang ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Continuous Casting ◽  
Casting Process ◽  
Continuous Casting Process ◽  
Nozzle Clogging ◽  
Steel Billet ◽  
Billet Continuous Casting

Numerical Modeling of Diffusion Boundary Layer in Strip Casting Process of Carbon Steel

2000 ◽  
Author(s):  
A. V. Kuznetsov
Keyword(s):  
Boundary Layer ◽  
Carbon Steel ◽  
Continuous Casting ◽  
Casting Process ◽  
Strip Casting ◽  
Diffusion Boundary Layer ◽  
Valuable Insight ◽  
Continuous Casting Process ◽  
Diffusion Boundary ◽  
Flat Steel

Abstract This paper is aimed at the investigation of the diffusion boundary layer near the cooled casting surface encountered in the horizontal continuous casting process of carbon steel. The strip casting process is a relatively new continuous casting process. This process makes it possible to produce high-quality flat steel products directly, without using hot rolling. This explains why this process is very attractive for industry. Extensive numerical simulations under equilibrium and nonequilibrium assumptions provide valuable insight into the physics of diffusion boundary layer.

scholarly journals Ladle Nozzle Clogging during casting of Silicon-Steel

2019 ◽  
Vol 38 (2019) ◽  
pp. 813-821
Author(s):  
Wei Kong ◽  
Ying-Feng Chen ◽  
Da-Giang Cang
Keyword(s):  
Melting Point ◽  
Continuous Casting ◽  
Slide Gate ◽  
Casting Process ◽  
Silicon Steel ◽  
High Melting ◽  
High Melting Point ◽  
Continuous Casting Process ◽  
Nozzle Clogging ◽  
Flow Rates

AbstractTo figure out the reason causing ladle nozzle clogging during a continuous casting process (or CC for short) for the silicon steel and get away to solve it, this paper studied the theoretical calculation of flow rates during casting, inclusions around the slide gate where ladle nozzle clogging happened, and Ca-treatment on refining units for producing the silicon steel. The results showed that: The bigger diameter of a nozzle or less nozzle clogging can guarantee an enough flow rate for reaching the target casting speed. Ladle nozzle clogging can be predicted by analyzing the percentage of a slide gate being opened. Al2O3 and its composite inclusions were the main ones which cause the nozzle clogging during the CC process of the silicon steel. Ca-treatment could transform those high melting point inclusions into C12A7 by adding Si-Ca wires and prevent the ladle nozzle clogging of the silicon steel.

scholarly journals Thermodynamic and Experimental Studies on Al Addition of 253MA Steel

Metals ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 433 ◽  
Author(s):  
Yandong Li ◽  
Tongsheng Zhang ◽  
Chengjun Liu ◽  
Maofa Jiang
Keyword(s):  
Phase Diagram ◽  
Continuous Casting ◽  
Experimental Studies ◽  
Casting Process ◽  
Al Alloy ◽  
Liquid Region ◽  
Continuous Casting Process ◽  
Nozzle Clogging ◽  
Calphad Technique ◽  
Liquid Phases

To solve the nozzle clogging issue in the continuous casting process of 253MA steel, a method of modifying solid inclusions to liquid phases is proposed. The CALPHAD technique was employed to predict the liquid region of the Al2O3-SiO2-Ce2O3 system. Then a thermodynamic package based on the extracted data during the phase diagram optimization process was developed. This package was then used to compute the appropriate aluminum addition, which was 0.01% in 253MA steel. The Si-Al alloy was chosen as the deoxidant according to the thermodynamic analysis. The solid inclusions were ultimately modified to liquid phases at 1500 °C when cerium was added through the equilibrium experiments in a MoSi2 tube furnace.

scholarly journals Kinetic Modeling on Nozzle Clogging During Steel Billet Continuous Casting

2010 ◽  
Vol 50 (5) ◽  
pp. 712-720 ◽  
Author(s):  
Mujun Long ◽  
Xiangjun Zuo ◽  
Lifeng Zhang ◽  
Dengfu Chen
Keyword(s):  
Continuous Casting ◽  
Kinetic Modeling ◽  
Nozzle Clogging ◽  
Steel Billet ◽  
Billet Continuous Casting
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