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建立了非正弦振动波形的计算方法，首次提出了一个基于电液伺服振动系统的振幅和振动频率可调的分级匹配控制模型，使正常拉坯时，振动频率为１００～１２０ｍｉｎ－１，负滑动率为－１０％～－２０％，负滑动时间稳定在０．０６ｓ左右。开发了电液伺服结晶器振动系统，热试结果表明：应用非正弦振动可使初始凝固坯壳在正滑动期间所受的摩擦阻力降低４０％，皱痕深度大为减轻，铸坯表面质量明显提高。
The calculation method of non-sinusoidal vibration waveform is established. For the first time, a hierarchical matching control model with adjustable amplitude and vibration frequency based on electro-hydraulic servo vibration system is proposed. The vibration frequency is 100 ~ 120min-1 and the negative slip Rate of -10% ~ -20%, negative sliding time stable at 0.06s or so. The vibration test of electro-hydraulic servo mold was developed. The results of the thermal test show that the frictional resistance of the initial solidified shell during normal sliding can be reduced by 40% by using non-sinusoidal vibration, the wrinkle depth is greatly reduced and the slab surface quality is obvious improve.