First, the choice of power ultrasonic cleaning effect is not necessarily proportional to (power × cleaning time), ultrasonic cleaning machine sometimes with a small power, spend a long time also did not remove the dirt. And if the power reaches a certain value, sometimes the dirt will be removed very quickly. If you choose too much power, cavitation intensity will greatly increase, the cleaning effect is improved, but then make the more precise parts also produce corrosion points, the loss is not worth it, and the bottom of the cleaning cylinder vibration plate at the cavitation is serious, the water point corrosion also increased, in the use of trichloroethylene and other organic solvents, basically no problem, but the use of water or water-soluble cleaning solution, easy to be water point corrosion, if the vibration plate surface has been scarred, strong Power under the water bottom cavitation corrosion is more serious, so to choose the ultrasonic power according to the actual use of the situation. Second, the choice of frequency ultrasonic cleaning frequency from a dozen kHz to 100 kHz, in the use of water or water cleaning agent caused by the role of cavitation physical cleaning force is obviously beneficial to low frequency, the general use of 15-40 kHz or so. For small gaps, slits, deep holes in the parts cleaning, with high frequency (generally more than 40kHz) better, or even a few hundred kHz. on the clock parts cleaning, with 400kHz. if the broadband FM cleaning, the effect is even better. Third, the use of cleaning basket in the cleaning of small parts items, often use the net basket, due to the mesh to cause ultrasonic attenuation, to pay special attention. When the frequency is 28khz when using more than 10mm mesh is good. Fourth, the choice of cleaning fluid temperature The most suitable cleaning fluid cleaning temperature is 40-60 ℃, especially in the cold if the cleaning fluid temperature is low cavitation effect is poor, the cleaning effect is also poor. Therefore, some of the cleaning machine in the cleaning cylinder around the outside of the heating wire for temperature control, when the temperature rises cavitation is easy to occur, so the cleaning effect is better. When the temperature continues to rise after the gas pressure within the cavitation bubble increases, causing the impact sound pressure decreases, reflecting the multiplicative effect of these two factors. Fifth, the amount of cleaning fluid and cleaning parts to determine the location of the general cleaning fluid level above the surface of the vibrator more than 100mm is good. Due to the single frequency cleaning machine by the impact of standing wave field, the wave section at the amplitude is very small, the wave amplitude at the amplitude caused by uneven cleaning. Therefore, the best choice of cleaning items should be placed at the location of the wave amplitude. Sixth, the ultrasonic cleaning process and the choice of cleaning fluid In the purchase of cleaning systems before, should be cleaned to do the following application analysis: clarify the material composition of the washed parts, structure and quantity, analysis and clarify the dirt to be removed, these are to decide what kind of cleaning method to be used, to determine the application of water-based cleaning fluid or solvent prerequisites. The final cleaning process also need to do cleaning experiments to verify. Only then can provide a suitable cleaning system, design a reasonable cleaning process and cleaning fluid. Considering the physical properties of the cleaning fluid on the impact of ultrasonic cleaning, where the vapor pressure, surface tension, viscosity and density should be the most significant impact factors. Temperature can affect these factors, so it will also affect the efficiency of cavitation. Any cleaning system must use cleaning fluid. When choosing a cleaning fluid, the following three factors should be considered: 1. Cleaning efficiency: When choosing the most effective cleaning solvent, be sure to do experiments. Such as the introduction of ultrasound in the existing cleaning process, the solvent used generally do not have to change; 2. Simple operation: the liquid used should be safe and non-toxic, simple operation and long service life; 3. Cost: the cheapest cleaning solvents are not necessarily the lowest cost of use. Use must take into account the cleaning efficiency of the solvent, security, a certain amount of solvent can be cleaned how much workpiece utilization is the highest and other factors. Of course, the cleaning solvent chosen must achieve the cleaning effect, and should be compatible with the workpiece material being cleaned. Water is the most common cleaning solution, so the use of water-based solution system is easy to operate, the use of low cost, widely used. However, for some materials as well as dirt and so on is not applicable to water-based solutions, then there are many solvents available. Seven, different cleaning solutions, to distinguish the cleaning system Water-based system: usually consists of an open slot, in which the workpiece is submerged. And complex systems will be composed of multiple tanks, and equipped with recirculation filtration system, shower tank, drying tank and other accessories. Solvent system: most of the ultrasonic vapor phase grease removal cleaning machine, often equipped with continuous recovery of waste liquid device. Ultrasonic vapor phase grease removal process is composed of solvent evaporation tank and ultrasonic dip tank integrated multi-slot system to complete. Under the joint action of hot solvent vapor and ultrasonic agitation, oil, grease, wax and other solvent-soluble dirt is removed. After a series of cleaning processes under the workpiece fever, clean, dry. Eight, cleaning parts processing ultrasonic cleaning of another consideration is the cleaning parts on, off the material or the design of the tooling placed on the cleaning parts. Cleaning parts in the ultrasonic cleaning tank, whether the cleaning parts or cleaning parts basket shall not touch the bottom of the tank. The total cross-sectional area of the cleaning piece should not exceed 70% of the cross-sectional area of the ultrasonic tank. Rubber and non-rigid plastic will absorb ultrasonic energy, so such materials should be used with caution when the tooling. Insulated cleaning parts should also draw special attention. Work basket design is not appropriate, or the workpiece is too heavy, even if the best ultrasonic cleaning system efficiency will be greatly reduced. Hooks, shelves and beakers can be used to support the cleaning parts. Nine, cleaning time, the type of workpiece, the number of clear Consider the use of machine work mode is fully automatic, semi-automatic, manual. Machine size, cost. Ten, other Cleaning a large amount of dirt parts are generally used to dip, spray and other methods of pre-cleaning. After removing most of the dirt, then use ultrasonic cleaning of the remaining dirt, then the effect is good. If cleaning small items and complex shape of the items (parts), if the use of cleaning network or make cleaning objects rotate, while vibrating with ultrasonic radiation, can get uniform cleaning. Article Keywords: ultrasonic cleaning equipment Disclaimer: mechanical experts on the publication of all information does not represent or guarantee the correctness or reliability of its content; you hereby accept and acknowledge that reliance on any information generated by the risk should be borne by yourself. Mechanical experts have the right, but not the obligation, to improve or correct any part of the published information errors or omissions.