Numerical analysis of macrosegregation and shrinkage porosity in large steel ingot

2013 ◽  
Vol 41 (8) ◽  
pp. 598-606 ◽  
Author(s):  
P. Lan ◽  
J. Q. Zhang
Keyword(s):  
Numerical Analysis ◽  
Steel Ingot ◽  
Shrinkage Porosity ◽  
Large Steel

scholarly journals Application of Numerical Analysis and Model Experiment on Seismic Design of Large Steel Celltype Quay Wall

2008 ◽  
Vol 55 ◽  
pp. 936-940
Author(s):  
Kazunobu MOROHOSHI ◽  
Eiji KOHAMA ◽  
Masaharu WATANABE ◽  
Osamu KIYOMIYA ◽  
Takahiro SUGANO ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Seismic Design ◽  
Model Experiment ◽  
Large Steel ◽  
Quay Wall

Numerical Study on Solidification Process and Shrinkage Porosity for Engine Block Casting

2010 ◽  
Vol 37-38 ◽  
pp. 753-756
Author(s):  
Jin Xiang Liu ◽  
Ri Dong Liao ◽  
Zheng Xi Zuo
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Numerical Analysis ◽  
Cylinder Head ◽  
Numerical Study ◽  
Solidification Process ◽  
Shrinkage Porosity ◽  
Temperature Distributions ◽  
Simulation Results ◽  
Casting Design

The latent heat releasing and the criterion for shrinkage porosity in solidification progress of casting are studied. A numerical analysis is presented for solidification progress of the cylinder head casting using finite element method. The temperature distributions of the casting in different solidification phases are solved, and the shrinkage porosity is predicted. Based on this, the solidification progress of casting is evaluated. The simulation results can offer a helpful reference for casting design of cylinder head casting.

scholarly journals Modelling of macrosegregation in large steel ingot with considering solid movement

2009 ◽  
Vol 58 (13) ◽  
pp. 104
Author(s):  
Liu Dong-Rong ◽  
Sang Bao-Guang ◽  
Kang Xiu-Hong ◽  
Li Dian-Zhong
Keyword(s):  
Steel Ingot ◽  
Large Steel ◽  
Solid Movement

Influence of Riser Necking Ratio and Taper on the Solidification of Heavy Ingots by Numerical Simulation

2021 ◽  
Vol 871 ◽  
pp. 59-64
Author(s):  
Ya Nan Zhao ◽  
Shi Guang Ba
Keyword(s):  
Numerical Simulation ◽  
Software Package ◽  
Steel Ingot ◽  
Solidification Process ◽  
Shrinkage Porosity ◽  
Solidification Time ◽  
Secondary Porosity ◽  
Time Decrease

The effect of riser necking ratio and taper on solidification process of 96T steel ingot have been studied numerically using the software package ProCAST. The results show that the solidification time decrease with the increase of riser necking ratio, and the position of shrinkage porosity moves up and the secondary porosity presents a tendency of increase, and the inclusions on the shoulder of body ingot decreases. The riser taper has little effect on the solidification process of heavy ingots.

scholarly journals Consideration on the Formation Mechanisms of Macroscopic Segregation in Large Steel Ingot or Casting

1971 ◽  
Vol 57 (10) ◽  
pp. 1654-1675 ◽  
Author(s):  
Koichi TASHIRO ◽  
Toru TODOROKI ◽  
Shigeo KIMURA
Keyword(s):  
Steel Ingot ◽  
Formation Mechanisms ◽  
Large Steel

scholarly journals Application of Heat Absorption Method to Improve Quality of Large Steel Ingot

2021 ◽  
Vol 61 (3) ◽  
pp. 865-870
Author(s):  
Chuanjun Li ◽  
Qiong Zhang ◽  
Longqiang Zhu ◽  
Weidong Xuan ◽  
Jiang Wang ◽  
...  
Keyword(s):  
Steel Ingot ◽  
Heat Absorption ◽  
Improve Quality ◽  
Absorption Method ◽  
Large Steel

The Influences on Microstructure and Segregation of the Jumbo Slab Ingot by Different Cooling Speed

2014 ◽  
Vol 941-944 ◽  
pp. 1782-1787
Author(s):  
Nan Lv ◽  
Yong Long Jin ◽  
Sheng Li Li ◽  
Xin Gang Ai
Keyword(s):  
Steel Ingot ◽  
Shrinkage Porosity ◽  
Layer By Layer ◽  
Freeze Layer ◽  
The Core ◽  
Cooling Conditions ◽  
Chill Zone ◽  
Composition Segregation ◽  
Cooling Speed

Shrinkage porosity and segregation defects are often found in an air cooled jumbo steel ingot, which will influence the quality of the final rolled plates.The solidification behaviours for a 60t jumbo slab ingot under varied cooling conditions were simulated using the ProCast software.The influences of different cooling speed on dendrite distribution and segregation were studied.The results show the jumbo slab ingot could freeze layer by layer when the heat transfer coeffcients of mould increase to 1000W·K-1·m-2. The thick finer chill zone were achieved. At the same time, the columnar crystals grow preferentially parrelling to the density of heat flow, and finer equiaxied crystals are formed in the core of the ingot. They all improve the microstructure and decrease the composition segregation of jumbo slab ingot.

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