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Transverse Distributions of Front and Back Tension Stresses in Cold Strip Rolling

LIU Hongmin LIAN Jiachuang ** Yanshan University , Qinhuangdao , Hebei Province , 066004 , China+ To whom correspondence should be addressed

材料科学技术（英文）

In this paper,such a new lateral displacement function is proposed that the lateral flow velocity is con- tinuous at the entry and the exit of deformation zone.A new kind of finite strip method—the third power B-spline finite strip method—is put forward to simulate strip rolling process.Front and back tension stresses are formulated.The computed results of the transverse distributions of the front and back tension stresses are close to the experimental results.The paper lays a foundation for further analysing the three-dimensional stresses and deformations of strip rolling.

关键词: cold strip rolling , null , null , null

University of Science and Technology Beijing

JIA Shizhen University of Science and Technology Beijing , China.

材料科学技术（英文）

关键词:

Online Shape Dynamic Wrapping Angle Compensation Model of Cold Strip

YANG Li-po , YU Bing-qiang , YU Hua-xin

钢铁研究学报(英文版)

In specific condition, when wrapping angle of cold rolling strip covering surface of shape detecting roll dynamically changes, online radial compression of the shape detecting roll is changed too, and it seriously affects online shape detecting precision of cold strip. Based on the latest intelligent shape meter developed by Yanshan University, using PSO-BP neural network and actual working condition datum, the cold strip online dynamic wrapping angle compensation model is established, and successfully applied in 1250 mm 6-high cold mill, remarkable results are achieved. The error between calculated values and measured values of total tensions is within 3%.

关键词: cold rolling strip , shape detecting , wrapping angle , compensation , shape meter , cold mill