Detailed introduction of two categories of the hot

2022-08-06
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Detailed introduction to two categories of ultrasonic cleaning equipment

ultrasonic cleaning equipment can generally be divided into general and special models

1. General ultrasonic cleaning machine

the structure of the ultrasonic cleaning machine generally has two forms: the ultrasonic power supply and the washer are integrated or arranged separately. Generally, the low-power (below 200W) cleaning machine uses an integrated structure, while the high-power cleaning machine uses a split structure. The split structure of the ultrasonic cleaning machine 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 cleaning fluid and cleaned workpieces. Most workpieces can be installed in a shape frame, such as a reading disc universal experimental machine, and then placed in the cylinder together for cleaning. Ultrasonic generator: the ultrasonic generator used for ultrasonic cleaning machine can be divided into electronic tube type, thyristor type and transistor type from the type of components used. In recent years, high-power "power module" has been developed. Its output power ranges from tens of watts to thousands of watts, and its working frequency ranges from 15KHz to 40khzo

the ultrasonic generator used in the ultrasonic cleaning machine has the following characteristics:

(1) the resonant frequency and impedance of the transducer change greatly with the depth of the cleaning fluid. However, the practice shows that after putting an appropriate amount of cleaning material into the tank, it can basically be stabilized at a certain value

(2) generally speaking, due to the small change of cleaning load, complex frequency automatic tracking circuit is not required

(3) most practical ultrasonic generators use high-power self-excited feedback oscillators. Ultrasonic transducer: the transducers used for ultrasonic cleaning machines mainly include the following:

① magnetostrictive transducer most of the domestic magnetostrictive transducers are window type transducers made of nickel sheets, which are silver welded at the bottom of the cleaning cylinder, and then wound a certain number of coils on the window with wires. The transducer can bear large power, has good reliability and long service life. The disadvantage is that the efficiency is lower than that of piezoelectric transducer, and the raw material nickel sheet is expensive

② piezoelectric transducer at present, most ultrasonic cleaning machines at home and abroad use piezoelectric transducer

this transducer is generally composed of two piezoelectric ceramic wafers. A cleaning machine uses a plurality of transducers, which are bonded to the bottom of the cleaning cylinder by adhesive and connected in parallel to form the transducer of a cleaning machine. Distance between transducer elements (the frequency of 20kh4 is generally 5-10mm, which is too large to cause bending vibration, and the vibrating plate is corroded, and the radiation surface is relatively reduced.

the general ultrasonic cleaning machine has strong applicability for cleaning parts, and has been widely used in many industries, such as electronics, watches, optics, machinery, automobile, aviation, atomic energy industry, medical devices, etc.

2. The special ultrasonic cleaning machine

is generally installed in the cleaning area of some specific objects On the runoff line

introduction to typical ultrasonic cleaning equipment for soft magnetic devices: the cleaned objects are sent to the ultrasonic cleaning tank for cleaning from the stainless steel special belt that can be driven from the feed inlet, and then discharged after spraying, drying and other processes, so that the cleaned objects can be directly packed and stored. A brief description of each process is as follows:

① feeding: semi-automatic feeding can be used for the feeding of objects

② piezoelectric transducer at present, most ultrasonic cleaning machines at home and abroad use piezoelectric transducers with L-shaped structure

this transducer is generally composed of two piezoelectric ceramic wafers. A cleaning machine uses a plurality of transducers, which are bonded to the bottom of the cleaning cylinder by adhesive and connected in parallel to form the transducer of a cleaning machine. Distance between transducer elements (the frequency of 20kh4 is generally 5-10mm, which is too large to cause bending vibration, and the vibrating plate is corroded, and the radiation surface is relatively reduced.

the general ultrasonic cleaning machine has strong applicability for cleaning parts, and has been widely used in electronics, watches, optics, machinery, machinery, automobile, aviation, atomic energy industry, medical devices and many other industries. The special ultrasonic cleaning machine is generally installed in some special On the production line for cleaning fixed objects

typical ultrasonic cleaning equipment for soft magnetic devices. The cleaned objects are sent to the ultrasonic cleaning tank from the stainless steel special belt that can be driven at the feed inlet for cleaning, and then discharged after spraying, drying and other processes, so that the cleaned objects can be directly packed and stored. A brief description of each process is as follows:

① feeding: semi-automatic feeding or discharging can be adopted for the feeding of objects; automatic receiving or manual receiving can be adopted for the discharging of objects, and the cleaned objects are put into the packaging box

the whole process of ultrasonic cleaning is completed through the above process

at present, there is also an ultrasonic vapor phase cleaning machine. It is an experimental machine manufacturer Jinan experimental machine factory Jinan new era Gold Testing Instrument Co., Ltd. you are welcome to invest 15.1 billion yuan annually to select organic solvents as cleaning liquid, which has a strong ability to dissolve dirt and is used to clean objects with particularly high cleanliness requirements such as semiconductors. (end)

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