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为了在真空装置内(1×10~(-4)～5×10~(-5)毫米贡柱)进行搅拌,需从外部驱动源输入转矩。通常是采用将装置中的两根轴由一根轴贯通,这就需要在旋转轴上采用油封进行密封,这种密封形式在长时间运转后,油封往往因密封处润滑不良,而造成油封唇部疲劳,降低密封的贴合力,以及与轴贴合的唇部产生收缩等象现,最后密封失效,使装置内难以保证所需
In order to stir in a vacuum apparatus (1 × 10 -4 to 5 × 10 -5 mm tribute), it is necessary to input torque from an external driving source. Usually the two shafts in the device are penetrated by a shaft, which requires the use of an oil seal on the rotating shaft. After the oil seal is operated for a long period of time, the oil seal tends to be lubricated poorly by the seal, causing the oil seal lip Department of fatigue, reducing the seal of the paste force, as well as the shaft fit with the contraction of the lips appear like the last seal failure, the device is difficult to ensure the required