胸围尺寸尺码对照表,久久99亚洲精品久久久久,无码一区二区,护士sex性hd医生性生话

Application of ultrasonic cutting
Jie Guan is a leader in the field of ultrasonic rubber cutting, the experience and the results have been obtained is the most significant and widely recognized. We fully understand the needs of customers in this area, with our rich experience in the field and the global technology, and provide customers with high technology, high stability and economical equipment, and provide the most professional rubber cutting integrated solutions and global services.
Working principle of ultrasonic cutting
Ultrasonic cutting principle is to convert the 50/60Hz current into 20, 30 or 40kHz by ultrasonic generator. High frequency electric energy which is converted to the same frequency by the transducer is converted into mechanical vibration, and then mechanical vibration through a set of amplitude modulation of the amplitude of the device to pass to the cutting knife. The cutting knife is transmitted to the cutting surface of the workpiece to be cut to the cutting surface of the workpiece to be cut.
The main components of a set of ultrasonic cutting system include ultrasonic generator, transducer / amplitude modulation device, and various cable.
Advantages of ultrasonic rubber cutting
- high cutting accuracy, no deformation of plastic material
- the cutting surface is smooth, the bond performance is good.
- easy to use for automatic production
- fast, efficient, no pollution
Use 20kHz cutting knife to cut the upper tread
(the transverse and longitudinal mode)