Techniques for Controlling Heat Transfer in the Mould-Strand Gap in Order to Use Fluoride Free Mould Powder for Continuous Casting of Peritectic Steel Grades

2016 ◽  
pp. 349-356
Author(s):  
Adam Hunt ◽  
Bridget Stewart ◽  
Bridget Stewart
Keyword(s):  
Heat Transfer ◽  
Continuous Casting ◽  
Peritectic Steel ◽  
Mould Powder ◽  
Steel Grades

Evolution of Mould Fluxes

2013 ◽  
Vol 794 ◽  
pp. 75-89
Author(s):  
Ashok Hariharan ◽  
Samir Kumar Mozumdar
Keyword(s):  
Continuous Casting ◽  
Surface Quality ◽  
Raw Materials ◽  
Fine Powder ◽  
Raw Material ◽  
Environment Friendly ◽  
Mould Flux ◽  
Mould Powder ◽  
Steel Grades ◽  
Future Demands

Mould flux was invented for bottom poured ingots using fly ash as raw material. It transited subsequently to synthetic raw materials. As continuous casting of steel developed, Fluxes in fine powder form evolved culminating to the development of environment friendly fluxes in granular form. As continuous casting of stainless steel commenced different powders were developed for different Stainless qualities like austenitic, ferritic etc. Powders developed from interface with users were not only to satisfy demand of lubrication in the mould but also for adequate heat transfer and better surface quality. Shrinkage in mould, interplay of the elements in steel during casting with mould slag, tendency of the steel grades towards cracking or sticking and influence of various casting parameters determined mould powder development and usage. In-mould Powder performance dynamically reacts to changes in casting parameters and conditions and appropriate changes in powder chemistry can overcome or minimise detrimental effects of such changes. Future demands of overall cost control, better surface quality, minimal grinding, stable meniscus will guide powder research and development alongwith focus on environmental concerns.

scholarly journals Mathematical Heat Transfer Model Research for the Improvement of Continuous Casting Slab Temperature

2005 ◽  
Vol 45 (9) ◽  
pp. 1291-1296 ◽  
Author(s):  
Hongming WANG ◽  
Guirong LI ◽  
Yucheng LEI ◽  
Yutao ZHAO ◽  
Qixun DAI ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Continuous Casting ◽  
Heat Transfer Model ◽  
Transfer Model ◽  
Continuous Casting Slab ◽  
Model Research ◽  
Slab Temperature

Heat Transfer and Solidification Model of Slab Continuous Casting Based on Nail-Shooting Experiments

2015 ◽  
Vol 1088 ◽  
pp. 153-158 ◽  
Author(s):  
An Gui Hou ◽  
Yi Min ◽  
Cheng Jun Liu ◽  
Mao Fa Jiang
Keyword(s):  
Heat Transfer ◽  
Continuous Casting ◽  
Liquid Core ◽  
Casting Process ◽  
Soft Reduction ◽  
Slab Continuous Casting ◽  
Solidification Model ◽  
Core Length ◽  
Measurement Results ◽  
Heat Transfer And Solidification

A heat transfer and solidification model of slab continuous casting process was developed, and the nail-shooting experiments were carried out to verify and improve the prediction accuracy. The comparison between the simulation and the measurements results showed that, there exists difference between the model predicted liquid core length and the calculated liquid core length according to the measurement results of the solidification shell thickness. In the present study, the value of constant a in the heat transfer coefficient calculation formula was corrected through back-calculation, results showed that, the suitable value of a is 31.650, 33.468 and 35.126 when the casting speed is 0.8m·min-1, 0.9m·min-1 and 1.0m·min-1 respectively, which can meet the liquid core length of the measurement results. The developed model built a foundation for the application of dynamic secondary cooling, and dynamic soft reduction.

Experimental Study of Heat Transfer in Hot Rolling and Continuous Casting

2005 ◽  
Vol 473-474 ◽  
pp. 347-354 ◽  
Author(s):  
Jaroslav Horský ◽  
Miroslav Raudenský ◽  
Michal Pohanka
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Continuous Casting ◽  
Hot Rolling
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