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as casting material and the metal casting device was used in order to manufacture the mold product of automobile tire in the actual industrial field. The temperature distribution and the cooling time... and researchers associated with tire mold production have studied the production of the mold of good quality and reduction of the manufacturing period. The temperature distribution of the casting......
Research on mold flux for hypo-peritectic steel at high casting speedHeming Zhao, Xinhua Wang, and Jiongming Zhang Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China摘 要:Mold fluxes having adaptable properties were developed in the laboratory to solve quality defects, such as depressions......
SEN底部形状对结晶器内钢液流场和温度场的影响王翠娜1,温良英1,陈登福1,张大江1,彭政1,靳星1(1.重庆市重庆大学材料科学与工程学院)摘 要:针对某钢厂板坯连铸结晶器及浸入式水口(SEN)的结构参数,建立了描述结晶器内钢液流动的三维数学模型,应用FLUENT软件对结晶器内钢液的流场和温度场进行耦合计算,分析SEN底部形状对结晶器内流场和温度场的影响,并利用水模试验对钢液的流动行为进行了验证.结果表明:凸底水口出口附近钢液的速度较大,流股的冲击深度较大,使结晶器内高温区下移,不利于凝固坯壳的生长;平底水口自......
: The material flow, temperature rise of the billet and pressing load during equal-channel angular process (ECAP) were studied by using 3D finite element method for Cu at different corner angle of mold... of the material becomes more apparent. The pressing load and peak temperature rise of the billet become low as the interfacial friction coefficient decreases. The effects of the corner angle of mold......
板坯连铸结晶器内钢凝固过程热行为研究 Ⅰ.数学模型蔡兆镇1,朱苗勇1(1.辽宁省沈阳市东北大学材料与冶金学院)摘 要:建立了伴随δ/γ相变的钢凝固过程两相区溶质微观偏析模型,以其所确立的钢凝固过程各相分数与温度之间的关系获得钢的高温物性参数,并根据连铸坯在结晶器内凝固收缩量与结晶器内表面的位移关系,保护渣的液/固状态及厚度分布,铸坯表面和铜板热面的温度分布以及气隙的动态变化等建立了描述坯壳-铜板界面热流的数学模型.在此基础上,运用率相关本构模型,采用顺序耦合法建立了描述板坯连铸结晶器内钢凝固过程热行为的二维瞬态......
Mensuration and simulation of mold filling process in semi-solid die-cast of aluminum alloy YANG Yi-tao(杨弋涛), WANG Jian-fu(王建甫), ZHANG Heng-hua(张恒华) , SHAO Guang-jie(邵光杰) School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China Received 28 July 2006; accepted 15 September 2006 Abstract: To understand the flow trace of semi-solid slurry in mold cavity, some......
on the mechanical properties of plastic mold steel. The plasma temperature, running time of imposition, and target distance to the sample surface were all used as network inputs; Vickers hardness measurements...Experimental and numerical study on plasma nitriding of AISI P20 mold steelN.Nayebpashaee1,H.Vafaeenezhad1,Sh.Kheirandish2,M.Soltanieh21. Materials Processing Simulation Laboratory(MPS-LAB),School......
Simulation of the continuous casting process in a mold of free-cutting steel 38MnVS based on a MiLE methodYun-jin Xia1,2),Fu-ming Wang1,2),Jin-long Wang1,2),and Guo-zhong Li3) 1) School... and Eulerian (MiLE) method was used to simulate the continuous casting process in a mold of free-cutting steel 38MnVS.The simulation results are basically in agreement with experimental data......
break temperature on the air gap and hot tearing indicator were also modeled. The model predicts that the bloom surface temperature increases with the increase of the mold flux break temperature, but the heat flux decreases with the increase of the mold flux break temperature. The hot tearing indicator is much smaller when the mold flux break temperature is higher. Key words: mixed Lagrangian......