scholarly journals Modeling Solidification Phenomena in the Continuous Casting of Carbon Steels

10.5772/19699 ◽  
2011 ◽  
Author(s):  
Panagiotis Sismanis
Keyword(s):  
Continuous Casting ◽  
Carbon Steels

High-speed continuous casting of peritectic carbon steels

2005 ◽  
Vol 413-414 ◽  
pp. 2-9 ◽  
Author(s):  
Toshihiko Emi ◽  
Hasse Fredriksson
Keyword(s):  
Continuous Casting ◽  
High Speed ◽  
Carbon Steels

Ultrasonic Transmission Characteristics of Continuous Casting Slab for Medium Carbon Steel

2005 ◽  
Vol 297-300 ◽  
pp. 2201-2206
Author(s):  
Jun Youn Lee ◽  
Soon Bok Lee ◽  
Jae Kyung Yi
Keyword(s):  
Carbon Steel ◽  
Continuous Casting ◽  
Surface Defects ◽  
Medium Carbon Steel ◽  
Carbon Steels ◽  
Ultrasonic Waves ◽  
Transmission Characteristics ◽  
Medium Carbon ◽  
Continuous Casting Slab ◽  
On Line

Until now, surface defects of continuous casting slab have been removed by the enforced surface scarfing to produce high quality steel materials. An evaluation technique for surface and internal defects of slab is required to enhance the production of medium carbon steels and acquire defect-map. Accordingly as a preliminary step, longitudinal wave testing and Rayleigh wave testing were carried out on slab specimens of medium carbon steel to get basic transmission characteristics of ultrasonic waves. This research provides as basic data for on-line defect estimation using a laser ultrasonic or EMAT in non-contact ultrasonic detecting techniques in future.

Modular Horizontal Continuous Casting Machine: Meeting the Challenge of Flexible Manufacturing of the Future

2009 ◽  
Vol 419-420 ◽  
pp. 349-352
Author(s):  
Pongsak Chaengkham ◽  
Panya Srichandr
Keyword(s):  
Continuous Casting ◽  
Modular Design ◽  
Continuous Casting Machine ◽  
Casting Machine ◽  
Carbon Steels ◽  
Low Alloy Steels ◽  
Cross Sectional ◽  
Horizontal Continuous Casting ◽  
The Future ◽  
Alloy Steels

Manufacturing of the future has to be more flexible and versatile in order to meet the ever changing needs of the customer. Most continuous casting machines today are rather inflexible in that they are designed to cast specific types of alloys and with limited size ranges, thus suitable for the mass production paradigm. This paper reports the design and development of a modular horizontal continuous casting machine (HCCM). The aim is to have a machine that can continuously cast a variety of ferrous alloys from carbon steels, low alloy steels, stainless steels to cast irons, and with ranges of cross-sectional areas. The modular design approach and quick changing techniques are employed as the key design concept. The construction of the first prototype of the machine is completed and several field trials have been conducted. The results are promising. For carbon and low alloy steel billets, the overall structures and surface quality are good although the amount of porosities is rather large. The overall quality of stainless steel billets is better than that of carbon and low alloy steels. Adapting and setting up the machine for casting different alloys and/or different billet sizes require a little time, no more than 20 minutes.

Deformation and Structure Difference of Steel Droplets during Initial Solidification

2017 ◽  
Vol 36 (4) ◽  
pp. 347-357 ◽  
Author(s):  
Yang Li ◽  
Jing Wang ◽  
Jiaquan Zhang ◽  
Changgui Cheng ◽  
Zhi Zeng
Keyword(s):  
Carbon Steel ◽  
Continuous Casting ◽  
High Carbon Steel ◽  
Low Carbon Steel ◽  
Carbon Steels ◽  
Solidification Structure ◽  
Low Carbon ◽  
High Carbon ◽  
Peritectic Steel ◽  
Initial Solidification

AbstractThe surface quality of slabs is closely related with the initial solidification at very first seconds of molten steel near meniscus in mold during continuous casting. The solidification, structure, and free deformation for given steels have been investigated in droplet experiments by aid of Laser Scanning Confocal Microscope. It is observed that the appearances of solidified shells for high carbon steels and some hyper-peritectic steels with high carbon content show lamellar, while that for other steels show spherical. Convex is formed along the chilling direction for most steels, besides some occasions that concave is formed for high carbon steel at times. The deformation degree decreases gradually in order of hypo-peritectic steel, ultra-low carbon steel, hyper-peritectic steel, low carbon steel, and high carbon steel, which is consistent with the solidification shrinkage in macroscope during continuous casting. Additionally, the microstructure of solidified shell of hypo-peritectic steel is bainite, while that of hyper-peritectic steel is martensite.

scholarly journals Method of Verification of Carbon Segregation Ratio Determined with Experimental Methods

Metals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 499
Author(s):  
Jan Falkus ◽  
Katarzyna Miłkowska-Piszczek ◽  
Paweł Krajewski ◽  
Tomasz Ropka
Keyword(s):  
Continuous Casting ◽  
Continuous Caster ◽  
High Carbon Steel ◽  
Metal Flow ◽  
Casting Process ◽  
Segregation Ratio ◽  
Carbon Steels ◽  
High Carbon ◽  
Continuous Casting Process ◽  
Carbon Segregation

The problem of macrosegregation of alloying elements occurring during cast strand solidification in the continuous casting process is still valid; it is the subject of numerous experiments and theoretical considerations. A large percentage of this research is dedicated to carbon segregation, which, for understandable reasons, is vital for the production of high-carbon steels. The background knowledge on the mechanism of segregation occurrence indicates that it is a very complex effect, and a broad range of factors influencing the continuous casting process need to be considered. Therefore, it is difficult to translate information (provided by complex models of metal flow through a diphase area at the solidification interface of a cast strand) into practical engineering recommendations to reduce the macrosegregation effect. The presented study shows the latest research related to the carbon macrosegregation effect for selected high-carbon steel grades cast with a continuous caster. Problems related to the recording of the effect concerned have been pointed out. The second part of the paper presents the influence of selected casting parameters on carbon macrosegregation intensity when casting 160 × 160 billets with a six-strand caster. In this case, the main subject of the research was the influence of the casting speed on macrosegregation intensity. In the following step, an attempt was made to find the relationship between the cast strand structure and the distribution of carbon content on its cross-section. The ultimate objective of the presented study was to find an answer to the question on the technological capabilities of restricting the segregation effect.

scholarly journals The influence of continuous casting technology on the cleanliness of carbon steel

2021 ◽  
Vol 46 (1) ◽  
pp. 27-30
Author(s):  
Aida Imamović ◽  
Raza Sunulahpašić ◽  
Mirsada Oruč ◽  
Omer Kablar ◽  
Derviš Mujagić
Keyword(s):  
Mechanical Properties ◽  
Carbon Steel ◽  
Continuous Casting ◽  
Production Method ◽  
Carbon Steels ◽  
Casting Technology ◽  
Metallic Inclusions

The influence of the production method, i.e. casting technology on the cleanliness and thus the quality of carbon steels is best determined through the presence and type of non-metallic inclusions. A large number of inclusions, especially oxide and complex ones, can significantly affect the mechanical properties of carbon steels and limit their application for the production of finished products. This paper presents the influence of the presence, type and amount of non - metallic inclusions in B500B carbon steel according to ASTM / AISI produced by continuous casting technology without and with the application of stream protection.

Influence of Tin Segregation on the Intergranular Failure of Medium Carbon Steels During Continuous Casting

2004 ◽  
Vol 10 (S02) ◽  
pp. 760-761
Author(s):  
Olga Dremailova ◽  
Daryoush Emadi ◽  
J R Brown ◽  
Elhachmi Essadiqi
Keyword(s):  
Continuous Casting ◽  
Carbon Steels ◽  
Medium Carbon ◽  
Intergranular Failure ◽  
Medium Carbon Steels

Extended abstract of a paper presented at Microscopy and Microanalysis 2004 in Savannah, Georgia, USA, August 1–5, 2004.

scholarly journals Simulation for Progress of Solid-Liquid Coexisting Zone in Continuous Casting of Carbon Steels

1990 ◽  
Vol 76 (5) ◽  
pp. 728-734 ◽  
Author(s):  
Tadayoshi TAKAHASHI ◽  
Ken-ichi OHSASA ◽  
Noriyuki KATAYAMA
Keyword(s):  
Continuous Casting ◽  
Carbon Steels ◽  
Solid Liquid
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