Dimensionless diagrams for the temperature distribution in direct-chill continuous casting

Cast Metals ◽  
1995 ◽  
Vol 8 (3) ◽  
pp. 147-157 ◽  
Author(s):  
A. Håkonsen ◽  
O. R. Myhr
Keyword(s):  
Temperature Distribution ◽  
Continuous Casting ◽  
Direct Chill

scholarly journals Spatial and Sequential Deep Learning Approach for Predicting Temperature Distribution in a Steel-Making Continuous Casting Process

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 21953-21965
Author(s):  
Soo Young Lee ◽  
Bayu Adhi Tama ◽  
Changyun Choi ◽  
Jong-Yeon Hwang ◽  
Jonggeun Bang ◽  
...  
Keyword(s):  
Deep Learning ◽  
Temperature Distribution ◽  
Continuous Casting ◽  
Casting Process ◽  
Learning Approach ◽  
Continuous Casting Process ◽  
Steel Making

Microstructure Change of AZCa912 Magnesium Alloy Continuous Casting Bar by Hot Compression

2014 ◽  
Vol 783-786 ◽  
pp. 521-526 ◽  
Author(s):  
Akira Watazu ◽  
Naoki Omura ◽  
Kenji Miwa ◽  
Naobumi Saito
Keyword(s):  
Magnesium Alloy ◽  
Low Temperature ◽  
Continuous Casting ◽  
Direct Chill ◽  
Hot Compression ◽  
Casting Method ◽  
Microstructure Change ◽  
Metallic Luster ◽  
Grain Sizes ◽  
Compression Properties

AZCa912, 8.8mass%Al-0.68mass%Zn-0.25mass%Mn-1.9mass%Ca-Bal.Mg, continuous casting bars were formed and their hot compression properties were measured. AZCa912 alloy is a noncombustible magnesium alloy. AZCa912 bars 50 mm in diameter were formed by a direct chill continuous casting method. The surfaces of the bars had excellent metallic luster. Grain sizes in the bars were 148, and the dendrite arm spacing was 16.9 μm. Cracks on the side surfaces of the samples were formed by compression at 250-300°C, 0.01-1/s and 350°C, 1/s. However, inner cracks were not observed and-5 μm fine-grains were formed. Some samples had an unchanged casting structure after hot pressing, and the percent of the structure remaining unchanged decreased with low-temperature compression.

scholarly journals Numerical Simulation and Preparation of Cladding Billet by Direct Chill Semi-Continuous Casting

2015 ◽  
Vol 56 (11) ◽  
pp. 1893-1900 ◽  
Author(s):  
Han Xing ◽  
Zhang Haitao ◽  
Shao Bo ◽  
Zuo Kesheng ◽  
He Lizi ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Continuous Casting ◽  
Direct Chill

Study on Composite Interface of 4045/3003 by Cladding Casting

2015 ◽  
Vol 817 ◽  
pp. 3-7
Author(s):  
Xing Han ◽  
Bo Shao ◽  
Hai Tao Zhang ◽  
Ke Qin ◽  
Jian Zhong Cui
Keyword(s):  
Aluminum Alloy ◽  
Aluminum Alloys ◽  
Continuous Casting ◽  
Casting Process ◽  
Direct Chill ◽  
Core Material ◽  
Technological Parameters ◽  
Metallurgical Bonding ◽  
Composite Interface ◽  
Si Content

With the cladding casting equipment, which was self-designed and self-made, 4045/3003 composite ingot, which is in size of Φ140mm/Φ110mm, has been manufactured by direct cooling continuous casting by adjusting and optimizing the technological parameters. The process was investigated involving macro-morphology and microstructure near the interface between the two different aluminum alloys at different positions, and distributions of both components and hardness of the cladding ingot. In addition, the tensile strengths were tested. The results showed that metallurgical bonding of two different aluminum alloys could be obtained by direct-chill semi-continuous casting process. The diffusion layer, which is about 15μm on average, has formed on the two sides of composite interface during casting process. From the side of 4045 aluminum alloy to the side of 3003 aluminum alloy, the Si content has a trend to decrease, as well as the hardness, while the Mn content has a trend to increase gradually. Tensile strength of the coated ingot reaches 117.3MPa, which is higher than the core-material matrix (3003 aluminum alloy), indicating the bonding of the two alloys belongs to metallurgical bonding.

A Mathematical Modeling of Heat Transfer in Continuous Casting Slab

2010 ◽  
Vol 44-47 ◽  
pp. 33-37
Author(s):  
Qi Zhang ◽  
La Dao Yang ◽  
Heng Wen
Keyword(s):  
Heat Transfer ◽  
Temperature Distribution ◽  
Continuous Casting ◽  
Shell Thickness ◽  
Heat Removal ◽  
Phase Changes ◽  
Optimum Process ◽  
Cooling Zone ◽  
Solid Shell ◽  
Continuous Casting Slab

A two-dimensional (2-D) heat transfer and solidification model has been established and applied to calculate the temperature distribution and solid shell thickness profile of a continuous casting slab in a steel plant. A finite difference method was used for the numerical simulation. For thermal analysis, the 2-D slice unsteady-state heat conduction equation with enthalpy convention was used. Meanwhile, non-linear material properties of specific heat and thermal conductivity as well as phase changes during solidification were considered in the model. The temperature distribution and solid shell thickness calculated by mathematical model agree with those predicted by industrial and experimental measurements. The model could also be used to predict the optimum process parameters on casting speed, heat removal rates and the water distribution of secondary cooling zone.

A New Method for Manufacturing Composite Ingot of 4045/3004/4045 Aluminum Alloy

2011 ◽  
Vol 391-392 ◽  
pp. 501-504
Author(s):  
Ke Qin ◽  
Jian Zhong Cui
Keyword(s):  
Aluminum Alloy ◽  
Temperature Distribution ◽  
Casting Process ◽  
Direct Chill ◽  
Solid Layer ◽  
Cooling Plate ◽  
Metallurgical Bonding ◽  
Composite Interface ◽  
Dc Casting ◽  
Semi Solid

A method for manufacturing composite ingot of 4045/3004/4045 aluminum alloy using direct-chill (DC) casting was introduced. The casting process, the temperature distribution near the composite interface and the macro- and microstructures were investigated. The results show that composite interface is well-bonded, planar and clean with little evidence of porosity, which belongs to a kind of metallurgical bonding. Also semi-solid layer with a certain thickness is formed under the effect of cooling plate, which can ensure the realization of casting process of composite ingot.

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