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Failure maintenance knowledge of ultrasonic cleaning machine

2012/8/11      view:

Ultrasonic wave is transmitted in the liquid, the liquid and the cleaning tank in the ultrasonic frequency vibration, and the liquid cleaning tank has its own inherent vibration frequency, the vibration frequency is the frequency, so people can hear the hum. With the continuous development of the cleaning industry, more and more industries and enterprises have been applied to ultrasonic cleaning machine. Bathroom hardware products ultrasonic cleaning machine can help you solve the problem of cleaning.
Sanitary hardware ultrasonic cleaning machine of ultrasonic cleaning machine principle of high frequency oscillation signals emitted by the ultrasonic generator, and spread to the medium cleaning solvent through the transducer into high frequency mechanical oscillations, ultrasonic density in the cleaning solution and the forward radiation, the liquid flow caused tens of thousands of tiny bubbles diameter 50-500 m, tiny bubbles present in the liquid under the action of vibration in the field. These bubbles form and grow in the negative pressure area which is transmitted by the ultrasonic wave, and in the positive pressure area, when the sound pressure reaches a certain value, the bubble increases rapidly, and then suddenly closed. And when the bubble is closed to produce shock waves, generate thousands of atmospheric pressure in the surrounding, destruction of insoluble dirt and scatter them in the cleaning liquid, when the group was wrapped in oil particles and adhesion in surface cleaning, oil emulsion, solid particles and detachment, so as to achieve the purpose of purifying cleaning parts. In this process known as the "cavitation" effect, bubbles can form a number of Baidu's high temperature and more than 1000 of the pressure of the moment.
Bathroom hardware products ultrasonic cleaning machine has the advantages of: ultrasonic cleaning effect is good, easy to operate. The sound is heard by the frequency 20-20000Hz of the sound wave signal, higher than the 20000Hz of the sound wave is called the ultrasonic wave, the transmission of the sound wave according to the longitudinal propagation of the sine curve, produce a large number of small bubbles. One reason is that local appear tensile stress in liquid and the formation of negative pressure, pressure reducing the original gas dissolved in the liquid supersaturation, and escape from the liquid, become small bubbles; another reason is a strong tensile stress of the liquid "tear" into a hollow, known as cavitation.
Then the bathroom hardware products ultrasonic cleaning machine fault treatment has removed the load (transducer), re opened the generator fan to turn, the driver board indicator light, indicating that the load has a short circuit phenomenon, please check the load. When the load is removed, the switch is automatically turned off when the power switch is switched on, then the next step is to detect the switch. Open the shell to check whether the power switch is damaged, check whether the safety tube on the power board is burned, if there is a burning show that the power tube is broken down. Please replace the 11 insurance tube, power tube and 22 resistor, and detecting rectifier is burned. Detection method: the multimeter to the resistance gear; the black probe connected rectifier is extreme; the red pen are respectively connected with the two pin AC is conducting, is to replace the rectifier. No ultrasound, fan turn, the driver board indicator light, plug in the frequency table has frequency display.
Observe the current size of the ammeter, if the current is too small than the rated current, should first check whether there is damage to the ultrasonic transducer, such as transducer transducer chip off, broken glue crack, the connecting wire is a short circuit etc.. In general, if the current decline little or no decline, but the voice is normal, but the ultrasound intensity dropped more powerful, it is likely that the transducer glue crack, the judgment method for joint observation; glue coating transducer and steel plate, it should be a smooth surface, such as scratches it is likely that the glue is cracking, the transducer at this time should be removed to re bond, such as the current decline is more severe, mainly to check whether there is a connection wire circuit or transducer chip cracking. The general working voltage, cleaning object, water temperature and cleaning fluid types have influence on the ultrasonic intensity, especially in the violent agitation, ultrasound can be reduced and tens of seconds to recover, pay attention to the use of maintenance methods of ultrasonic vibrator.