Model Building of the Initial Crown Effect Rate in 4-High Mill

材料科学技术（英文）, 2005, 21(2): 165-169.

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1.State Key Laboratory of Rolling Technology and Automation, Northeastern University, PO. Box 105, Shenyang 110004, China

2.State Key Laboratory of Rolling Technology and Automation, Northeastern University, PO. Box 105, Shenyang 110004, China

3.State Key Laboratory of Rolling Technology and Automation, Northeastern University, PO. Box 105, Shenyang 110004, China

4.State Key Laboratory of Rolling Technology and Automation, Northeastern University, PO. Box 105, Shenyang 110004, China

5.State Key Laboratory of Rolling Technology and Automation, Northeastern University, PO. Box 105, Shenyang 110004, China

6.State Key Laboratory of Rolling Technology and Automation, Northeastern University, PO. Box 105, Shenyang 110004, China

基金项目: the Natural Science Foundation of Liaoning Province under(2001101021) This study was financially supported by the National Natural Science Foundation of China under(59995440) the State Key Development Programming Research under(G2000027208-4)

Model Building of the Initial Crown Effect Rate in 4-High Mill

Keywords： 4-high mill

The code for calculating the crown effect rate of hot strip steel was developed using the effect function method.The effect of the initial crown on the crown of the product in hot strip rolling was investigated. The coefficients of a polynomial of degree six for calculating the base value of initial crown effect rate in 4-high mill were determined and the compensation factors of per unit width rolling force, bending force, work roll crown and draft on the initial crown effect rate were given. The difference between the calculation result by established model and theoretical value obtained by effect function method was 4.88 μm when the strip width was 1.85 m.

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Model Building of the Initial Crown Effect Rate in 4-High Mill

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