How to choose the frequency of ultrasonic cleaning machine? What's the difference between high frequency and low frequency

The principle of ultrasonic cleaning is to produce "cavitation effect" in the cleaning liquid, that is, the cleaning liquid produces tensile and compression phenomenon, the cleaning liquid will produce a large number of tiny bubbles when stretched, the bubble will be crushed when the cleaning liquid is compressed. The local pressure produced and broken by these bubbles can reach the impact force of thousands of atmospheres. This extremely strong pressure is enough to change the material molecules, causing various chemical and physical changes (decomposition, combination, emulsification, dispersion, etc.), which can be used to remove dust, oil, rust and other impurities on the surface of the stripped objects.

Cov nyhuv cavitation yog qhov tseem ceeb tshaj plaws los txiav txim siab cov nyhuv tu, thiab ultrasonic zaus ncaj qha cuam tshuam rau cov nyhuv cavitation. Feem ntau, ultrasonic zaus uas ua rau cov nyhuv cavitation zoo tshaj plaws rau 20khz-80khz.

Qhov zaus yog inversely proportional rau txoj kab uas hla ntawm cov npuas nyob rau hauv cov kua thiab proportional rau permeability. Qhov siab dua qhov zaus, qhov luv dua lub wavelength, qhov me me ntawm txoj kab uas hla ntawm cov kab noj hniav, qhov qis dua qhov tawg siab, qhov zoo dua qhov permeability, haum rau kev ntxuav ntawm qhov chaw siab smoothness, zoo workpiece. Tsis tas li ntawd, qhov zaus yuav tsum tsis txhob siab dhau, txwv tsis pub lub wavelength yuav luv luv, cavitation yuav tsis muaj zog, yog li txo qhov kev tu kom zoo.

Ntawm qhov tsis sib xws, qhov qis dua ntawm ultrasonic zaus, qhov yooj yim dua nws yog tsim cov cavitation hauv cov kua, qhov ntau dua qhov kev siv zog thiab cov nyhuv muaj zog. Nws yog haum rau cov av nrog ntxhib nto thiab nyuaj rau ntxuav. Ultrasonic zaus kuj cuam tshuam rau qhov siab - lub suab nrov nrov tsim thaum lub sijhawm ua haujlwm, qhov zaus qis dua, lub suab nrov dua, feem ntau nyob rau hauv qhov kev pom zoo ntawm kev ua kom tau raws li qhov ua tau zoo ntawm kev ntxuav, kom deb li deb tau xaiv lub zaus ntau dua.

Raws li cov ntsiab cai saum toj no:

1, tsawg zaus 17K-23K: haum rau kev tu cov av yog hnyav los yog nyuaj rau ntxuav lub workpiece, thiab npuas blasting cuam tshuam quab yuam yuav tsis ua rau puas tsuaj rau lub workpiece nto, yuav tsum xaiv tsawg zaus ultrasonic tu, xws li: nws pib qhov chaw. , textiles, thiab lwm yam.

2, nruab nrab zaus 25K-28K: tsim nyog rau kev tu cov av hnyav me ntsis los yog nruab nrab tu nyuaj, thiab npuas blasting cuam tshuam quab yuam yuav tsis ua rau puas tsuaj rau lub workpiece nto, yuav tsum xaiv nruab nrab zaus ultrasonic tu, xws li: hardware machinery, electroplating kev lag luam, thiab lwm yam ..

3, siab zaus 33K-60K: haum rau kev tu cov av yog sib dua los yog yooj yim dua los ntxuav, thiab cov npuas blasting cuam tshuam quab yuam yuav tsis ua rau puas tsuaj rau lub workpiece nto, yuav tsum xaiv high zaus ultrasonic tu, xws li: optical iav, hluav taws xob Cheebtsam, lwm.

4, siab zaus 68K-200K: haum rau tu lub teeb av los yog yooj yim tu, thiab npuas blasting cuam tshuam quab yuam ntawm lub workpiece nto yuav tsis ua kev puas tsuaj, yuav tsum xaiv high zaus ultrasonic tu, xws li: semiconductor, tshwj xeeb high precision qhov chaw.