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2D DEM analyses for T-M coupling effects of extreme temperatures on surrounding rock-supporting system of a tunnel in cold regionZHANG Yu-jun(张玉军)1, YANG Chao-shuai(杨朝帅)1, 2, WANG Yong-gang(王永刚)3(1... in cold region, and the influence degree of extreme lowest temperature is the highest.Key words:extreme temperature; tunnel in cold region; thermo-mechanical coupling; distinct element method......
Lubrication in strip cold rolling processJianlin Sun, Yonglin Kang, Tianguo Xiao, and Jianze WangMaterials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083... 0.032 to 1.6 Pa·s were used to obtain different film thicknesses in the strip cold rolling. Results from the experiment and calculation show that the oil film forming in hydrodynamic lubrication is up......
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. Key words: CuCr contact material; friction; wear; infiltration process; compacting process 铜铬合金由于具有良好的导电, 导热, 耐腐蚀和良好的加工性能, 目前被广泛用于电力, 电子, 机械, 原子能等工业领域. 高铜含量的铜铬合金主要用作真空开关管和高压电器开关中的触头材......
Trans. Nonferrous Met. Soc. China 25(2015) 926-935 3D FEM simulation of flow velocity field for 5052 aluminum alloy multi-row sprocket in cold semi-precision forging process Wang-jun CHENG1, Cheng... on the design of the multi-row sprocket with a new tooth profile, a cold semi-precision forging process for manufacturing 5052 aluminum alloy multi-row sprocket was presented. Through simulating......
Rotation of Main Slip Plane {110} and Variation of Strain Hardening Rate in Cold Rolling Deformation of BCC Steel Z.M.Yu1,G.Y.Li1 (1.Material Forming, IMP;2. Material Physics, FYS*;3. The Royal Institute of Technology (KTH) 100 44 Stockholm Sweden) 摘要: 1. IntroductionTo improve the formability of sheet steels for car-body panels, large-strain deformation has been applied to cold rolling......
Recycle of valuable products from oily cold rolling mill sludgeBo Liu1,Shen-gen Zhang1,Jian-jun Tian1,De-an Pan1,Yang Liu1,Alex A.Volinsky21. Institute for Advanced Materials and Technology,University of Science and Technology Beijing2. Department of Mechanical Engineering,University of South Florida摘 要:Oily cold rolling mill(CRM)sludge contains lots......
Ductility improvement methods for commercial AZ31B magnesium alloy in cold forging Ryo MATSUMOTO Division of Mechanical Engineering, Graduate School of Engineering Science, Osaka University, 1-3...; Abstract: In order to realize cold forging of magnesium alloys in practical application, some methods for ductility......
Texture evolution and its simulation of cold drawing copper wires produced by continuous casting CHEN Jian1, 2, YAN Wen1, 2, LI Wei3, MIAO Jian4, FAN Xin-hui2 1. Department of Applied Physics... evolution of cold drawing copper wires produced by continuous casting was measured by X-ray diffractometry and electron back-scatter diffractometry, and was simulated using Taylor model. The results show......
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