Influence of Joint EMSFN and M-EMS on Fluid Flow in the Mold During Continuous Casting

来源 :金属学报(英文版) | 被引量 : 0次 | 上传用户:bigfish
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Homogenization of physical properties and the chemical composition through the control of liquid metal flow is essential during the continuous casting production of billets.This work was aimed at obtaining improved finished products via continuous casting that implements two magnetic fields.These fields were realized via two electromagnetic stirring processes implemented in a single process:one in the nozzle and one in the mold.The qualitative effects of applying double electromagnetic stirring (EMS) were verified through numerical simulation of 178 mm × 178 mm square billets exposed to double electromagnetic fields during the continuous casting process.The accuracy of the numerical calculations was verified via physical experiments.In addition,the final simulation results were compared with the intermediate results,to determine the true effects of different EMS on the metal flow in the mold.The results revealed that casting using EMS with different directions of magnetic field in the mold and the nozzle has the best effect on the distribution of the fluid flow and minimal influence on the stability of the meniscus and yields the minimum metal-jet penetration into the mold.
其他文献
To investigate the influence of tantalum content on high-temperature mechanical properties of low-carbon reduced activation ferritic/martensitic (RAFM) steels,RAFM steels containing different tantalum contents (0 and 0.073%) were fabricated,and the tensil
During the slab continuous casting process,the flow field of molten steel in the mold plays a decisive role in the quality of the slab.In this paper,electromagnetic swirling flow in nozzle technology is proposed to control the flow field in mold.This tech
M718 alloy with an extra high Mo content of 7.50 wt% which reduced Nb addition and increased Al and Ti additions within the composition specifications of 718 alloy has been designed to increase the service temperature of 718 alloy.And the effect of the he
As a typical configuration in plastic deformations,dislocation arrays possess a large variation of the separation of the partial dislocation pairs in face-centered cubic (fcc) metals.This can be manifested conveniently by an effective stacking fault energ
A modified cellular automaton model is developed to depict the interface evolution inside the cementite plus ferrite lamellar microstructures during the reaustenitization of a pearlite steel.In this model,migrations of both the austeniteferrite and austen
Using both numerical and experimental methods,we studied the effect of coil configuration of pulsed magneto-oscillation (PMO) on distribution of electromagnetic field,flow field and solidification structure with the same pulse current parameters in Al ing
Hot deformation behavior, microstructural evolution and flow softening mechanism were investigated in Ti-46Al-8Nb alloy via isothermal compression approach. The true stress-strain curves exhibited typical work hardening and flow softening, in which the de
Ultra-strong joints of pure Cu and Cu-30Zn alloy were obtained by friction stir welding under flowing water.The effects of heat inputting condition and material characteristics on the morphologies,microstructures and mechanical properties of welding joint
In this study,shot peening is applied to the titanium alloy Ti-6Al-4V,and the surface treatment effect on fatigue life of shot-peened specimens under high cycle loading is investigated.The induced residual stress is measured by using the orbital hole-dril
Degradation behaviors of three typical La-Mg-Ni alloys,La2MgNi9,La1.5Mg0.5Ni7 and La4MgNi19,were studied.La1.5Mg0.5Ni7 with (La,Mg)2Ni7 as main phase presents better discharge capacity and cycling stability.The three alloys suffer severe pulverization and