Monte Carlo calculation of view factors between some complex surfaces: Rectangular plane and parallel cylinder, rectangular plane and torus, especially cold-rolled strip and W-shaped radiant tube in continuous annealing furnace

2018 ◽  
Vol 134 ◽  
pp. 465-474 ◽  
Author(s):  
Fei He ◽  
Jiashun Shi ◽  
Li Zhou ◽  
Wu Li ◽  
Xiaolong Li
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Calculation ◽  
Rolled Strip ◽  
Continuous Annealing ◽  
Annealing Furnace ◽  
Complex Surfaces ◽  
Radiant Tube ◽  
Cold Rolled ◽  
View Factors ◽  
Continuous Annealing Furnace

Research for Transverse Tension Distribution on Steel Strip in Continuous-Annealing Furnace Based on ANSYS

2010 ◽  
Vol 139-141 ◽  
pp. 210-213
Author(s):  
Jian Xiong Liu ◽  
Hui Mian Li ◽  
Jun Hong Li ◽  
Zheng Yu Wu ◽  
Zhao Lin Zhan
Keyword(s):  
Steel Strip ◽  
Element Model ◽  
Rolled Strip ◽  
Continuous Annealing ◽  
Annealing Furnace ◽  
Tension Distribution ◽  
Compressive Stresses ◽  
Double Edge ◽  
Cold Rolled ◽  
Continuous Annealing Furnace

The cold rolled strip undergoes great transforming of micro-organization and change in properties in continuous annealing furnace. At the same time, it is acted upon by all kinds of forces, such as tensile and compressive stresses, bending stress, thermal stress. and thus it would affect stability of the steel strip. The finite element model of steel strip and guide rollers are established, and the ANSYS software is used to study the effects on transverse stress distribution under different strip shapes that contains center buckle, double edge wave, compound buckle, quarter buckle and quality shape. Profile of guide rollers such as different crowns and straight lengths are also be researched which is intended to provide a reliable base in theory for getting reasonable profile of guide rollers and homogenizing the tensile stress to improve shape quality.

Microstructure evolution in cold rolled strips during continuous annealing - modelling and simulation

2004 ◽  
Vol 120 ◽  
pp. 607-614
Author(s):  
V. Hein ◽  
H. Freydank ◽  
U. Michel ◽  
H. Zieger ◽  
G. Zouhar ◽  
...  
Keyword(s):  
Microstructure Evolution ◽  
Microalloyed Steel ◽  
High Strength ◽  
Experimental Simulation ◽  
Rolled Strip ◽  
Continuous Annealing ◽  
Limited Temperature ◽  
Cold Rolled ◽  
Temperature Time ◽  
Continuous Annealing Furnace

The empirical optimization of technologies for continuous annealing of cold rolled strips is very time, material and cost intensive. The properties of cold rolled strips demanded by the customer are adjustable only in relatively closely limited temperature - time regimes. Therefore, it is a complex task to increase the performance of continuous annealing furnaces without disadvantages for the product quality. This problem can be solved by nume-rical modelling the microstructure evolution in the cold rolled strip during continuous annealing combined with experimental simulation of the annealing process. At the Institut für Werkstoffwissenschaft, Technische Universität Dresden, in co-operation with EKO Stahl GmbH, Eisenhüttenstadt, a computer program signed as TFB was deve-loped. It is suited for modelling and simulating the recrystallization kinetics in cold rolled strips during continuous annealing. Furthermore, this program can be used for optimizing the annealing technology. For example, for IF steel the pre-sent paper demonstrates to what extent the performance of a continuous annealing furnace can be increased. Further results concern the improvement of the microstructure of the high strength microalloyed steel ZStE 380 Z by optimizing the annealing technology by means of experimental simulation.

scholarly journals Radiation Thermometry of Cold Rolled Steel Strips in a Continuous Annealing Furnace

1984 ◽  
Vol 70 (9) ◽  
pp. 1037-1044 ◽  
Author(s):  
Tohru IUCHI ◽  
Fumio TANAKA ◽  
Kunitoshi WATANABE ◽  
Akira EZAKI ◽  
Masahiro MASUDA ◽  
...  
Keyword(s):  
Radiation Thermometry ◽  
Continuous Annealing ◽  
Rolled Steel ◽  
Annealing Furnace ◽  
Cold Rolled Steel ◽  
Steel Strips ◽  
Cold Rolled ◽  
Continuous Annealing Furnace

Stress Distribution of Strip at the Parts in Contact with Roll in Continuous Annealing Furnace

2011 ◽  
Vol 383-390 ◽  
pp. 379-384
Author(s):  
Yi Ding Xing ◽  
Zhi Wen ◽  
Rui Feng Dou ◽  
Xiao Hong Feng ◽  
Zhi Li ◽  
...  
Keyword(s):  
Stress Distribution ◽  
Axial Direction ◽  
Circumferential Direction ◽  
Strip Width ◽  
Continuous Annealing ◽  
Centripetal Force ◽  
Uniform Stress ◽  
Annealing Furnace ◽  
Flat Part ◽  
Continuous Annealing Furnace

The phenomenon of buckling is attributed to the non-uniform stress imposed on strip. This paper investigates the occurrence of this non-uniform by calculating the stress distribution in circumferential and axial direction. The results indicate that stress distribution is even in circumferential direction, and the non-uniform happens in the axial direction. Furthermore, this non-uniform is quiet related to the proportion of strip width and the roll flat part length. Meanwhile, the roll flat part length should as long as it could be in the context of insuring the enough centripetal force to prevent the snaking.

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