Investigation of Non-Sinusoidal Oscillator Driven by Double Servomotors for Continuous Casting Mold

Chao Zhou,Fuzeng Zhang,Fang Wang,Xingzhong Zhang

doi:10.1109/access.2019.2958057

Chao Zhou, Fuzeng Zhang + Show 2 more

Open Access

https://doi.org/10.1109/access.2019.2958057

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Journal: IEEE Access	Publication Date: Jan 1, 2020
Citations: 3	License type: CC BY 4.0

Affiliation: Yanshan University, Hebei Agricultural University

Abstract

To improve the surface quality and casting speed of the slab further, a new type mold oscillator synchronously driven by double servomotors was proposed in this paper. The experimental prototype was designed and manufactured. For the non-sinusoidal oscillator, the waveform modification ratio could be adjusted during the steel continuous casing operation. Firstly, the working principle of the oscillator was described. Secondly, the rotating rules of the servomotor to realize non-sinusoidal oscillation waveform for entire function were given. Finally, the laboratory experiments were made. The experiment results show that the error of the two-side oscillation curves is smaller and the actual technological parameters are close to the theory and the oscillator can realize non-sinusoidal oscillation well. This kind of non-sinusoidal oscillator provides a feasible scheme for reducing oscillator investment, increasing casting speed and enhancing slab quality.

Highlights

Mold non-sinusoidal oscillator need ensure the heart working normally, which is one of the key technologies to realize highly efficient continuous casting
Continuous casting mold is regarded as the heart of the caster
Non-sinusoidal oscillation has the advantages of shorter negative strip time, longer positive strip time, larger negative strip distance, which can shallow the marks, melts a larger amount of slag and reduces the friction force between the mold and slab

Summary

Introduction

Mold non-sinusoidal oscillator need ensure the heart working normally, which is one of the key technologies to realize highly efficient continuous casting. Cylinder can realize all the non-sinusoidal waveform functions, and the oscillation frequency, modification ratio and amplitude can be adjusted during the operation [7], [8]. C. Zhou et al.: Investigation of Non-Sinusoidal Oscillator Driven by Double Servomotors for Continuous Casting Mold

Results

Conclusion