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    The vibration of EDM machine tool spindle is analysed in this article,the vibration wave form is detected, the spindle vibration fashion and spindle transfer function are established,some ideas to weaken the spindle vibration are presented
    文章时电火花成形机主轴头的振动进行了分析,测出了振动波形,建立了主轴头的振动方程和主轴头的传递函数,提出了减小主轴头振动的设想.
    Simultaneously,concrete defects may be determined by a synthetic methodof "velocity of sound -amplitude of vibration-wave form" on the basis of the features of theultrasonic wave test and concrete property.
    同时根据超声波法检测的特点,结合混凝土的性能,可采用“声速-振幅-波形”综合法来判定混凝土缺陷。
    Experiment shows, the mould vibrator driven by electrohydraulic servo systems and its computer control systems developed here can conveniently change vibration wave-form in accordance with continuous casting process, so the automation level of continuous casting process is improved.
    联机试验表明,所研制的结晶器电液伺服振动装置及其计算机控制系统能够根据连铸工艺要求实时、准确、方便地改变振动波形,从而有效地提高了连铸自动化水平。
    The vibration equipment adopts the hydraulic pressure vibration system (INMO system ) of the mould that made in Danieli Company , the characteristics that vibration quality is small , the amplitude , frequency and vibration wave form are adjustable, thus improved the lubricated effect of the copper wall of the mould and the casting blend surface, the vibration shaken of blend is reduced, the blend surface is imploved,the breaking out is reduced.
    振动设备采用达涅利公司开发的结晶器液压振动系统(INMO系统),具有振动质量小,振幅、频率和振动波形可调整的特点,从而改善了铸坯表面与结晶器铜壁的润滑效果,减少振痕深度,提高铸坯表面质量,并减少粘结漏钢。
 

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