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Research on Strip Wrinkling During Continuous Annealing Process

Author: YeYuJuan
Tutor: ZhouXuDong
School: Henan University of Science and Technology
Course: Materials Processing Engineering
Keywords: Continuous annealing Strip buckling Critical tension Numerical Simulation
CLC: TG161
Type: Master's thesis
Year: 2009
Downloads: 112
Quote: 0
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Abstract


The continuous annealing strip buckling deviation has been plagued by continuous annealing important problem . In order to prevent the deviation of the strip , the working furnace roller crown roller , in order to achieve self- correcting effect . However, the presence of the crown of the furnace roller greatly increased risk of the continuous annealing strip buckling . In order to solve this problem, continuous annealing strip buckling strip high-speed and stable operation , the need for research and analysis under various conditions strip buckling phenomenon . The main purpose of this study is to learn more about the strip buckling mechanism , the occurrence of the process , influencing factors and preventive measures , access to high-quality strip has a good strip shape . This paper first describes the strip buckling mechanism and process , and simulation software ABAQUS finite element numerical simulation and analysis on the occurrence and development of the continuous annealing strip buckling . Representative strip buckling of simulation for actual production , pointed out that the strip surface memory in the transverse compressive stress and stress concentration ; the furnace roller crown strip buckling critical tension , pointing out that the furnace roll crown the larger the smaller the strip buckling critical tension , but when the furnace roll crown more than 4mrad when , the buckling critical tension will not change ; analysis pointed out that the greater the friction strip is easy to produce buckling and strip buckling position with the increase applied to the strip tension gradually move to the roller shoulder , or buckling phenomenon cylindrical portion of the furnace roller and roll the shoulder . The experimental results obtained by the simulation results with the capsule Matoba T coincide. Numerical simulation of a physical model of the 110 production line , get the roll crown 11.1mrad aluminum foil thickness of 0.05mm buckling critical tension between 10.0 to 14.0MPa , the results of the physical model from the buckling critical tension 11.0 to 11.5 MPa consistent numerical simulation program selection and parameter setting has a certain authenticity , provide a theoretical basis and reference for the actual production .

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Metallurgy and Heat Treatment > Heat treatment > Heat treatment of steel
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