The Influence of Rolling Parameters on Metal Flow Law of H-Beam

2014 ◽  
Vol 898 ◽  
pp. 201-204
Author(s):  
Jin Hong Ma ◽  
Xiao Han Yao ◽  
Bin Tao
Keyword(s):  
Metal Flow ◽  
Rolling Process ◽  
Fe Model ◽  
Continuous Rolling ◽  
Elongation Ratio ◽  
Deformation Law ◽  
Hot Continuous Rolling ◽  
Flow Law ◽  
H Beam ◽  
Deform 3D

According to the production data of a rolling H-beam factory, the FE model of hot continuous rolling process of H-beam is built. With the FEM software of DEFORM-3D, the continuous rolling of H-beam was simulated. On base of simulation result, the metal flow and deformation law are discussed. Because of the flange and web is deformed in the different deformation zone, the metal flow law of flange and web is complex, especially the metal of the conjunction of flange and web. The exchange of metal between the flange and the web of H-beam alters to the different elongation ratio of flange and web. The other factors which influents on the metal flow , are taken into consideration, such as rolling speed and friction coefficient. By adjustment to the rolling parameters, the defect of the H-beam is reduced.

Study on Metal Flow in the Finish Rolling Process of Large-Sized H-Beam

2014 ◽  
Vol 602-605 ◽  
pp. 705-708
Author(s):  
Jin Hong Ma ◽  
Bin Tao ◽  
Xiao Han Yao
Keyword(s):  
Metal Flow ◽  
Rolling Process ◽  
Production Data ◽  
Fe Model ◽  
Continuous Rolling ◽  
Finish Rolling ◽  
Deformation Law ◽  
Hot Continuous Rolling ◽  
H Beam ◽  
Deform 3D

According to the production data of a rolling H-beam factory, the FE model of hot continuous rolling process of H-beam is built. With the FEM software of DEFORM-3D, the continuous rolling of H-beam was simulated. On base of simulation result, the metal flow and deformation law are discussed. Because of the flange and web is deformed in the different deformation zone, the metal flow law of flange and web is complex, especially the metal of the conjunction of flange and web. In this paper, the metal flow of large-sized H-beam in finishing rolling process is analyzed.

Study on the Flange Spread of H-Beam

2014 ◽  
Vol 898 ◽  
pp. 213-216
Author(s):  
Jin Hong Ma ◽  
Xiao Han Yao ◽  
Bin Tao
Keyword(s):  
Rolling Process ◽  
Production Data ◽  
Fe Model ◽  
Continuous Rolling ◽  
Elongation Ratio ◽  
Deformation Parameters ◽  
Flange Thickness ◽  
Hot Continuous Rolling ◽  
H Beam ◽  
Explicit Dynamic

According to the production data of a rolling H-beam factory, the FE model of hot continuous rolling process of H-beam is built. The rolling process of H-beams is simulated by explicit dynamic FEM, and the influence of deformation parameters on the spread of rolling piece is analyzed. The simulation results show that the flange width, elongation ratio between flange and web and flange thickness are the major influencing factors on the spread of rolling piece.

Corrugated Waist Rail Microstructure Evolution Simulation

2014 ◽  
Vol 989-994 ◽  
pp. 425-428
Author(s):  
Jin Hong Ma ◽  
Bin Tao ◽  
Xiao Han Yao
Keyword(s):  
Research Result ◽  
Rolling Process ◽  
Element Analysis ◽  
Evolution Simulation ◽  
The Finite Element Analysis ◽  
Corrugated Web ◽  
H Beam ◽  
Rail Structure ◽  
The Relationship ◽  
Deform 3D

Applying the research result of the whole corrugated web H-beam to rail structure, a new kind of rail structure, the corrugated web rail was generated. The special structure rail was successfully rolled in the Research Mill Institute of Yanshan University. Based on the finite element analysis software DEFORM-3D, the rolling process of corrugated waist rail is simulated. The miscrostructure evolution of rolling corrugated waist rail is analysed. The relationship between miscrostructure evolution and deformation are also analysed.

The Uniform Elongation of Web and Flange of H-Beam

2009 ◽  
Vol 79-82 ◽  
pp. 1919-1922 ◽  
Author(s):  
Jin Hong Ma ◽  
Wen Zhi Zhang ◽  
Wei Chen ◽  
Shen Bai Zheng ◽  
Hong Bin Li
Keyword(s):  
Residual Stress ◽  
Uniform Elongation ◽  
Rolling Process ◽  
Reduction Ratio ◽  
Elongation Ratio ◽  
Beam Production ◽  
Simulation And Experiment ◽  
H Beam ◽  
In Virtue Of

H-beam is widely used in the construction in virtue of its excellent sectional properties. Because of its complex section, flange and web are deformed in different zones in rolling process. The traditional elongation ratio between flange and web is 1.03~1.05, which obtained from experience. Web wave, crack, or flange crack, and the large residual stress exist in the H-beam production. The problems are mainly caused by the uneven elongation of flange and web. It is necessary to keep uniform elongation of flange and web to solve these problems. The modified reduction ratio between flange and web is provided in this paper. The ratios improve the quality of H-beam by simulation and experiment.

The Uniform Elongation Experiment of Web and Flange of H-Beam

2014 ◽  
Vol 898 ◽  
pp. 189-192
Author(s):  
Jin Hong Ma ◽  
Bin Tao ◽  
Xiao Han Yao
Keyword(s):  
Uniform Elongation ◽  
Rolling Process ◽  
Elongation Ratio ◽  
Uniform Deformation ◽  
Actual Production ◽  
H Beam ◽  
Rolling Quality ◽  
Tension Fracture

Web and flange of H-beam are deformed indifferent zone in the rolling process, so non-uniform deformation is easily generated. In order to ensure the uniform elongation of flange and web, usually , the elongation ratio of flange is 3~5% more than that of web. Web wave or crack often appears. Flange wave, crack even tension fracture often appears. Experiment are designed that the elongation ratio of flange and web are changed to ensure the uniform elongation of flange and web. Thus, the rolling quality of H-beam is improved. The recommended rolling rule is provided, which can provide the accordance for actual production.

Research into the Effect of Speed Mismatch during Continuous Rolling on the Process Parameters

2021 ◽  
Vol 316 ◽  
pp. 208-213
Author(s):  
Sergey O. Nepryakhin ◽  
Olga V. Vodopyanova
Keyword(s):  
Rolling Process ◽  
Rolling Speed ◽  
Continuous Rolling ◽  
Technological Parameters ◽  
Wire Mill ◽  
Small Deviations ◽  
Simulation Results ◽  
Rolling Torque ◽  
3D Software ◽  
Deform 3D

The paper analyzes the influence of tension (dam) on the technological parameters of the rolling process (spreading, force and rolling torque). For the analysis, a model of continuous rolling in three adjacent stands was developed, using the Deform 3D software. The adequacy of the model was confirmed by comparing the experimental data from the small-section wire mill 150 and the simulation results. The error in determining the forming was 0.4%, and in determining the power parameters was 11%. Further, a computational experiment was planned, to identify the effect of mismatched of rolling speeds on technological parameters. According to the results of calculations, graphs of changes in technological parameters were constructed. It is established that, even small deviations of rolling speed from the matched mode lead to significant changes in technological parameters.

Control on Head Displacement of H-Beam in Rolling Process

2011 ◽  
Vol 189-193 ◽  
pp. 2814-2817 ◽  
Author(s):  
Jin Hong Ma ◽  
Hui Li ◽  
Hong Bin Li ◽  
Wen Zhi Zhang
Keyword(s):  
Rolling Process ◽  
Experimental Investigations ◽  
Uniform Temperature ◽  
Elongation Ratio ◽  
Head Displacement ◽  
Universal Mill ◽  
Cooling Speed ◽  
Simulation Results ◽  
H Beam ◽  
Tongue Length

The uneven elongation between flange and web can make long tongue in the head of H-beam, which can lead to too long crop end length. In order to control the tongue length of H-beam head, different elongation ratio between flange and web is put forward to control the head displacement of H-beam. If the flange and web elongation is uniform, the loss of crop end length will be reduced. At the same time, different cooling speed of flange and web is set to keep the section uniform temperature. Experimental investigations of H-beam rolling are carried out on the universal mill in the Rolling Lab of Hebei polytechnic University. Comparisons between experimental value and simulation results prove the correctness of elongation ratio of flange and web.

Study on Load of Hollow Motor Shaft by 4-Roll Cross Wedge Rolling

2013 ◽  
Vol 288 ◽  
pp. 267-270 ◽  
Author(s):  
Yong Ming Yang ◽  
Feng Wen Cheng ◽  
Jiu Chuan Chen ◽  
Jun Zhao
Keyword(s):  
Rolling Force ◽  
Rolling Process ◽  
Fe Model ◽  
Motor Shaft ◽  
Cross Wedge Rolling ◽  
Mill Equipment ◽  
Die Structure ◽  
Forming Analysis ◽  
Rolling Load ◽  
Deform 3D

Rolling force is the main parameters for calculating the intensity and rigidity of the main parts in the mill. To determine the force produced by the four roll rolling process, the finite element (FE) model for hollow motor shaft forming using 4-roll cross wedge rolling had been established for forming analysis with the aid of FE software Deform-3D. According to the results of FE simulation, the rolling load rules were obtained and maximum force of up to 60 KN. It has important theoretical significance and application value for the mill equipment designing and die structure optimization.

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