JIANGSU JIUJIUJIAYI ULTRASONIC TECHNOLOGY CO.,LTD

◆　Transducer and generator

Ultrasonic cleaning system is the most important part of the transducer. The existing two kinds of transducer, is a kind of magnetic force transducer, made from nickel or nickel alloy; A kind of piezoelectric transducer, made of lead zirconate titanate or other ceramics. Piezoelectric material into the voltage change of electric field, it will occur deformation, this is the so-called 'piezoelectric effect. Relatively speaking, magnetic force transducer is used in changing magnetic field distortion of materials.

No matter use what kind of transducer, and usually the most basic factor for its produce the strength of the cavitation effect. Ultrasound and other sound, is a series of pressure point, namely a kind of compression and expansion of alternating waves (as shown). If the sound energy is strong enough, the expansion of the liquid in the wave phase is away, the resulting bubble; In the wave of the compression stage, the bubbles in the liquid instantaneous burst or implode, produce a kind of very effective impact, especially suitable for the cleaning. This process is called cavitation.

Sound waves of compression and expansion

Theoretically analyzing, burst of cavitation bubble will produce more than 10000 psi pressure and the high temperature of 20000 ° F (11000 ° C), and in the instant blast will burst quickly outward radiation. Energy released by a single cavitation bubble is very small, but every second for millions of cavitation bubble burst at the same time, the cumulative effect will be very strong, produce the powerful impact of contamination of the workpiece surface spalling, this is all the characteristics of ultrasonic cleaning.

If the ultrasonic energy is enough big, can throughout the cleaning fluid to produce cavitation phenomenon, so ultrasound can effectively clean the tiny cracks and holes. Cavitation also promotes the chemical reactions and accelerated the dissolution of surface film.

But only in a certain area of the liquid pressure is lower than the gas pressure inside a bubble matches will produce cavitation phenomenon in the area, so the generated by the transducer of ultrasonic wave amplitude is large enough to satisfy this condition. The minimum power required to produce cavitation is called cavitation critical point. Different fluid cavitation critical point, so the ultrasonic energy must exceed the critical point to reach the cleaning effect. That is to say, only more energy than critical point to produce cavitation bubble, so that the ultrasonic cleaning.

Mixer maintenance

If the power in the working process of the automatic stop, then there may be two things: one is the instantaneous overload, two cleaning machine fault. Is usually caused by overload, then as long as the power shut down, pause opened again; If overload should check the load repeatedly, such as whether the output short circuit, transducer is wet or submerged phenomenon. If there are any transducer should be used wet or submerged phenomenon electric hair dryer will transducer drying up later. If cleaning machine doesn't work, after carefully check the cleaning machine power failure is confirmed or transducer damage should be professional and technical personnel to repair, please do not remove the casually, avoid to cause a greater loss.

After startup should pay attention to the fan is working correctly, such as fan fault, should be replaced immediately stop the fan.

Have often observe the cleaning tank without leakage phenomenon, should immediately if there is any leakage repair

Attention in pieces

Power should be stable, not more than plus or minus 5%.

.through the ultrasonic power supply (signal generator) work for a long time when the environmental temperature should be kept below 37 degrees Celsius, a short period of time (40 minutes) while working environment temperature should be less than 40 degrees Celsius. Ambient temperature shall be immediately stop for more than 40 degrees Celsius

Shall be immediately found the power supply fan don't turn down

"Power should be avoided in the high temperature, moisture, dust and corrosive gas environment

Mixer operation procedures

Cleaning of the tank cleaning fluid into

Requirements:

(1) for the groove transducer adhesive in the bottom of the tank cleaning machine, the depth of the water should be greater than 5 cm

(2) for invasive cleaner, transducer box shall all be immersed in the cleaning fluid

Into the cleaning work

Check the power connection is correct, no problems such as power supply, open the power switch, cleaning machine begin to work

After the completion of the cleaning out the workpiece, don't put off cleaning fluid for a long time