Research On The Hydraulic And Computer Control System Of The Large Wide Slab

Casting billet is a very important part in the billet casting process. The condensing quality impact on the quality of the rolled steel directly. Steel quality control is a very difficult process. Temperature of molten steel pit, refining time, slagging procedures, feed line content, temperature of the station and composition has a great influence on the steel quality. If we are mastered these technical parameters well, hydraulic billet casting quality control has become the last step, and improve the billet's performance and quality has practical significance. The large cast make the generous slab hydraulic system's design more difficulty. At present, the same equipment is the slab continuous casting machine, and small billet size, can't meet the requirements. Therefore, designed and developed a new large generous slab hydraulic and computer control system in order to meet production requirements.This text describes the performance requirements of the slab machine, the hydraulic system and the design of electrical control system. Draw the schematic of the hydraulic system and give its mathematical analysis. The text established a proportional pressure reducing valve control asymmetric cylinder mathematical model. Use the Matlab/Simulink for system simulation and obtain the hydraulic cylinder curve in different parameters, thus verifying the correctness of the model. The feasibility of the hydraulic system as a whole provides a theoretical basis. Give the electrical control system and make a detailed description.The slab machine can automatically complete automatic compression, automatic packing, automatic vacuum, automatic ejection and other activities. To achieve these actions mainly in the electrical signal under the control of the hydraulic system. Slab machine can automatically correct errors, the ratio regulator, complex speed, built-in and non-contact measurement of displacement, automatic temperature control and other intelligent control.Hydraulic system and electrical control systems of the slab can meet a large slab motion control requirements, and the system performance reliable, low malfunction, concise, compact structure, advanced technical performance, high degree of automation, reduce the labor intensity and the production costs, save energy, improve the efficiency. It will play a major role in increase enterprises economic efficiency.