Reserch On Servo-hydraulic Oscillation Systems On Continuous Casting Mould

The first continuous casting machine mold oscillation system is based on the eccentric wheel driven mechanical vibration device, but have been unable to meet the requirements of modern production rhythm and process. In recent years, the domestic steel companies on a large scale construction of continuous casting production lines, and hydraulic technology widely used in the vibration of the continuous caster. Hydraulic technology for mechanical transmission, high precision, high response, small size and simple structure. It is not only as a general transmission and microelectronic technology, sensor technology, computer technology, combined, have played a very important role to improve the billet to billet production, improve slab quality and reduce costs.At present, the vibration of the continuous caster in general hydraulic servo control. Crystallizer hydraulic servo system as a mechanical, electrical, hydraulic and computer-coupled system, with a simple structure, the smooth mold oscillation, the negative slide a short time, the advantages of the vibration frequency, effectively improve the mold life, and electro-hydraulic servo mold oscillation system has the following advantages:the vibration force by the two incoming mold, transfer evenly; distortion in the high-frequency vibration, smooth motion, high frequency and low frequency vibration, the vibration-oriented, high accuracy; compact, simple, transfer part of a small mold is convenient to adjust, maintain; PLC control with high reliability and high anti-interference ability, long-term guarantee that the stability of the vibration waveform; can change the vibration curve and can set the vibration waveform, and other online continuous casting machine can be poured steels. And computer-controlled electro-hydraulic servo mold oscillation system, can easily produce a variety of rules to achieve control of the process of supervision, and to modify the vibration parameters in real time according to the casting speed, in order to achieve the automation of continuous casting process, mold oscillation system direction of development.The vibration of the continuous casting mold is an important factor affecting the continuous casting production, it is mainly divided into four ways:synchronous vibration, negative sliding vibration, sinusoidal vibration and non-sinusoidal vibration. Which non-sinusoidal vibration with a rise in exercise time and decreased exercise time long, can reduce the friction between the mold and solidified shell to prevent the solidified shell pull leak and crack, and to improve the surface quality of billet; while reducing the leakage steel occurs.The2150casting hydraulic servo vibration system, the subject of the research background, composition and functions of the2150casting machine hydraulic servo vibration system, and the use of control theory analysis and calculation of hydraulic servo system.