Ultrasonic cleaning equipment can generally be divided into two types of models, namely general purpose and special purpose. 1. The structure of the ultrasonic cleaning machine of the general ultrasonic cleaning machine generally has two forms of ultrasonic power supply and cleaning device integrated or separate layout. Generally, the low-power (200W or less) cleaning machine uses an integrated structure, while the high-power cleaning machine adopts a split type. structure. Ultrasonic cleaning machine split structure consists of three main parts (1) cleaning cylinder; (2) ultrasonic generator; (3) Ultrasonic transducer Cleaning cylinder: The cleaning cylinder is a stainless steel container used to load the cleaning fluid and the workpiece to be cleaned. Most of the workpieces can be installed in the mesh frame and then put together in the cylinder for cleaning. Ultrasonic generator: Ultrasonic generator for ultrasonic cleaning machine, the types of components used can be divided into tube type, thyristor type and transistor type. In recent years, it has been developed to use high-power "power modules". The ultrasonic generator with an output power ranging from tens of watts up to several kilowatts and operating at an ultrasonic frequency of 15 kHz to 40 kHz has the following characteristics: (1) As the depth of the cleaning fluid is different, the resonant frequency and impedance of the transducer vary greatly. However, practice has shown that after a proper amount of cleaning material is placed in the tank, it can basically be stabilized at a certain value. (2) In general, since the cleaning load variation is small, the complicated frequency automatic tracking circuit can be eliminated. (3) Practical ultrasonic generators, most of which use high-power self-excited feedback oscillators. Ultrasonic transducers: The transducers used in ultrasonic cleaning machines are mainly the following: 1 Magnetostrictive transducers Most of the magnetostrictive transducers used in China are window-type transducers that are stacked with nickel sheets. Silver is welded to the bottom of the cleaning cylinder, and then a wire is wound around the window to form a certain number of rolls. The transducer can withstand high power, has good reliability and long service life. The disadvantage is that the efficiency is lower than that of the piezoelectric transducer, and the raw material nickel sheet is expensive. 2 Piezoelectric Transducers At present, most ultrasonic cleaning machines at home and abroad use piezoelectric transducers. Such transducers typically consist of two piezoelectric ceramic wafers. A cleaning machine uses a plurality of transducers, which are bonded to the bottom of the cleaning cylinder via an adhesive and connected in parallel to form a transducer of a cleaning machine. The distance between the transducer elements (usually 5-10mm for the frequency 20kH4 is too large, it is easy to produce bending vibration, and the vibration plate is corroded, and the radiation surface is relatively reduced. General ultrasonic cleaning machine cleaning parts have strong applicability and have been widely used in many industries such as electronics, watches, optics, machinery, automobiles, aviation, atomic energy industry, medical equipment, etc. Special ultrasonic cleaners are typically installed on the production lines for certain specific items. Typical soft magnetic device ultrasonic cleaning equipment introduction: The cleaned object can be sent from the stainless steel special mesh belt that can be driven from the feeding port to the ultrasonic cleaning tank for cleaning, and then discharged after spraying and drying, so that the object to be cleaned can be directly Packaging and storage. The brief description of each process is as follows: 1 Feeding: The material feeding can be semi-automatic feeding. 2 Piezoelectric transducers At present, most ultrasonic cleaning machines at home and abroad use piezoelectric transducers to survey L-shaped structures. Such transducers typically consist of two piezoelectric ceramic wafers. A cleaning machine uses a plurality of transducers, which are bonded to the bottom of the cleaning cylinder via an adhesive and connected in parallel to form a transducer of a cleaning machine. The distance between the transducer elements (usually 5-10mm for the frequency 20kH4 is too large, it is easy to produce bending vibration, and the vibration plate is corroded, and the radiation surface is relatively reduced. General ultrasonic cleaning machine cleaning parts have strong applicability and have been widely used in many industries such as electronics, watches, optics, machinery, automobiles, aviation, atomic energy industry, medical equipment and so on. Special ultrasonic cleaners are typically installed on the production lines for certain specific items. A typical soft magnetic device ultrasonic cleaning device, the object to be cleaned can be sent from the stainless steel special mesh belt of the feeding port to the ultrasonic cleaning tank for cleaning, and then discharged after spraying, drying, etc., so that the object to be cleaned can be directly packaged. Storage. Each process is briefly described as follows: Feeding: The material feeding can be semi-automatic feeding or discharging: the material discharging can be carried out by automatic receiving or manual receiving, and the cleaning object is loaded into the packaging box. Through the above process, the whole process of using the ultrasonic cleaning of the object is completed. At present, there is also an ultrasonic vapor phase cleaning machine which uses an organic solvent as a cleaning liquid and has a strong ability to dissolve dirt, and is used for cleaning objects such as semiconductor wafers with particularly high requirements for cleanliness.