Hydrodynamics Method and Its Application in Hot Strip Rolling

被引：15

作者：

Li, Si ^{[1
]}

Wang, Zhigang ^{[1
]}

Ruan, Jinhua ^{[1
]}

Liu, Changming ^{[1
]}

Xu, Zengbing ^{[1
]}

机构：

[1] Wuhan Univ Sci & Technol, Educ Minist, Key Lab Met Equipment & Control, Wuhan 430081, Peoples R China

来源：

STEEL RESEARCH INTERNATIONAL | 2017年 / 88卷 / 04期

基金：

中国国家自然科学基金;

关键词：

hydrodynamics method; contact stress; friction hill; neutral plane; hot strip rolling; THIN STRIP; FRICTION; MODEL; LUBRICATION; SYSTEM;

D O I：

10.1002/srin.201600220

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A hydrodynamics method (HM) has been developed to predict the contact stresses in hot strip rolling. This method is based on that materials deformed in hot rolling present properties of viscous fluid. The contact stress formulas are derived from Navier-Stokes equation (N-S equation) by using HM. The contact stresses predicted by these formulas agreed well with the experiment data, which verified the validity of these formulas. By comparisons of experiment data with the results predicted by the derived formulas, the Amontons-Coulomb friction model (ACM) and the Absolute constant friction model (AFM), it is found that formulas derived by HM can smooth the friction hill and has higher accuracy in predicting the neutral plane positon than the ACM and the AFM did. It is believed that the contact stress formulas derived by HM can be used to solve on line hot rolling problems.

引用

页数：7

共 15 条

[1]

[Anonymous], 1990, CIRP ANN

[2] Approaches for a Fast Analysis System for Hot Rolling Processes [J].

Graf, Marcel ;

Kawalla, Rudolf .

STEEL RESEARCH INTERNATIONAL, 2014, 85 (09) :1364-1368

[3]

He YX, 2010, ROLLING ENG CHEM IND, P49

[4] Measurements of friction during hot rolling of aluminum strips [J].

Hum, B ;

Colquhoun, HW ;

Lenard, JG .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 1996, 60 (1-4) :331-338

[5] A 3-D finite element method analysis of cold rolling of thin strip with friction variation [J].

Jiang, ZY ;

Tieu, AK .

TRIBOLOGY INTERNATIONAL, 2004, 37 (02) :185-191

[6] Effect of Dynamic Transformation on the Mean Flow Stress [J].

Jonas, John J. ;

Ghosh, Chiradeep ;

Basabe, Vladimir V. .

STEEL RESEARCH INTERNATIONAL, 2013, 84 (03) :253-258

[7]

Karman T V., 1925, Z ANGEW MATH MECH, V5, P130

[8] Rolling of thin strip and foil: Application of a tribological model for "mixed" lubrication [J].

Le, HR ;

Sutcliffe, MPF .

JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME, 2002, 124 (01) :129-136

[9] A simplified method to calculate the rolling force in hot rolling [J].

Li, Si ;

Wang, Zhigang ;

Liu, Changming ;

Ruan, Jinhua ;

Xu, Zengbing .

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2017, 88 (5-8) :2053-2059

[10]

Orowan E., 1943, P I MECH ENG, V150, P140, DOI [DOI 10.1243/PIMEPROC194315002502, DOI 10.1243/PIME_PROC_1943_150_025_02]

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