Based on the mathematical model of the automatic gauge control system, a simulation platform of rolling mill is set up, and a sliding mode variable structure controller is designed to realize.
2.1. hot plate mill system. a hot plate mill system processes a rolling hot slab with a temperature in the range of 1100 to 1300 c, and consists of a spindle, backup roller, working roller, and main motor, as shown in fig. generated by the motors is transmitted to the working rollers in the rolling mill through the spindles.
2.2. dynamic model of strip mill mechanical structure. the rolling system structure is very complex, in order to facilitate the research, scholars often simplify the rolling system by using the lumped mass method, the method is simple and effective, it has been recognized by industry experts 16.
To this end, sae 1020 steel was hot processed in a duo rolling mill for reductions of 13, 17 and 21 in height. based on the performed experiments, a microstructural analysis was performed and a numerical model was proposed. furthermore, these results were compared with different analytical models to determine the process characteristics.
Based on the mathematical model of the automatic gauge control system, a simulation platform of rolling mill is set up, and a sliding mode variable structure controller is designed to realize.
Conventional hot strip mills; mathematical modeling and simulation in forming processes; rolling mills for long products, including pipes application of an empirical model for rolling force calculation in the hot strip finishing mill field testing and numerical simulation applied to dynamic problems.
His research interests include vibration of rolling mill, shape control and thickness control of the strip, dynamic simulation of the rolling mill, etc. peng yan, born in 1971, is currently a professor at yanshan university, china. his research interests include three dimensional numerical modeling of elasticplastic deformation for rolling.
The vibration demolding of the crystallizer leads to slab thickness deviation in continuous casting processes. therefore, in this paper, the dynamic model of the hot strip rolling mill vibration resulting from entry thickness deviation is proposed and its dynamic characteristics are studied. first, the dynamic model of vertical vibration in the hot strip rolling mill is established based on.
Ideas simulation solutions for potash operations 02 , dynamic models have only been , ing high pressure grinding rolls). live chat; comparison of hpgrball mill and hpgrstirred mill. comparison of hpgrball mill and hpgrstirred mill circuits to the existing ag , high pressure grinding rolls , mill and hpgrstirred mill circuits to the. live chat.
In the design of the rolling mill plants, it is fundamental to study the behaviour of the deformation process to assess the main process variables (such as torque and rolling force) in all operating this paper, a finite element model is developed and the numerical simulations of the plastic deformation process, in the hot rolling mill of aisi 304 stainless steel, are shown.
International journal of numerical methods for heat amp; fluid flow, 25,14881510 (2015). 3 u. hanoglu and b. šarler, simulation of hot shape rolling of steel in continuous rolling mill by local radial basis function collocation method. computer modelling in engineering and sciences, 109, 447479 (2015).
The study of the interaction process in hot rolling technology was carried out using threedimensional numerical simulation based on the deform3d software package, which used embedded preprocessor, postprocessor, and the finite element method for solving problems (hereinafter referred to as fem). in most cases, when modeling technical and.
2. vibration model of rolling mill system 2.1. vibration model of rolling mill system under nonlinear constraints. based on the production line of hebei iron and steel group chengde branch, the data of all the simulation experiments are derived from the structural parameters of the 1780 rolling mill and the parameters of the rolling process.
The temperature distribution in the wrs, along with its stress field, determine to a great extent the roll serviceability. within the content of this study, a simulation tool (astro) was developed, capable of providing the thermomechanical state of the wrs during hot rolling. astro is a numerical model, consisting of a thermal and a stress part.
1. introduction. in the present paper, the macroscopic simulation system, coping with a complete continuous rolling mill, including reversible prerolling and finishing rolling with several tenths of rolling passes 1,2,3,4,5, is upgraded to deal with grain size main aim is to calculate, in addition to the temperature and deformation fields, the austenite grain size at each.
As an alternative, numerical models that predict the thermal, mechanical and microstructural changes in a slab throughout the process are an important workaround. computational engineers at llnl are developing 3d physicsbased simulation models that enable steel engineers to peer inside virtual steel slabs throughout the hotrolling process.
Numerical model in this section, the numerical model of the simplified skewrolling mill is explained. it has been developed with the fem software forge, the principal elements of the model are the rolls and the billet but besides, it incorporates a guide and a.
Production of hot rolling for hbeam 47. the vertical roller mill 3d model established in proe is imported into adams through the data interactive software mechpro to analyze its stress, and then carry out the fea of the model loaded in ansys. after comparing with the material yield limit, the.
Rolling mill can be described as a multistep workflow in. volving: 1) design of a virtual hot rolling mill, 2) design. of the computational experiment, 3) simulation of the rolling. process.
The research has been performed by the simulation based on the abaqus cae 6.142 software and analytical modeling of the hot rolling process of.
The hot rolling mill design is prepared with a virtual workplace, which enables the users to either prepare a hot rolling mill design from the scratch or select and finetune an existing project of a rolling mill common scheme. moreover, the user can upload new material or devices models and use them in the simulation process.
Through process modelling of rolling and controlled cooling of trip assisted bainitic steel rods and prediction of the retained austenite in products. download. related papers. bainite in steels theory and practice third edition. by kanghyung kim. bainite in.
Office Add: High-Tech Industrial Development Zone of Zhengzhou City, China
Email: [email protected]