Qhov zaus ntawm ultrasonic yoj yog qhov zaus ntawm kev vibration ntawm lub suab.Qhov hu ua vibration zaus yog tus naj npawb ntawm cov lus tsa suab ib ob, chav tsev yog Hertz, lossis Hertz luv.Wave yog kev nthuav tawm ntawm kev vibration, uas yog, kev co yog kis ntawm thawj zaus.Yog li qhov zaus ntawm nthwv dej yog qhov zaus ntawm kev vibration ntawm lub suab.Cov nthwv dej tuaj yeem muab faib ua peb hom, uas yog infrasonic tsis, acoustic tsis, thiab ultrasonic tsis.Qhov zaus ntawm infrasound tsis yog qis dua 20Hz;zaus ntawm lub suab tsis yog 20Hz ~ 20kHz;Qhov zaus ntawm ultrasonic tsis yog siab dua 20kHz.Ntawm lawv, infrasound nthwv dej thiab ultrasound feem ntau tsis hnov tsw rau tib neeg pob ntseg.Vim hais tias ntawm lub siab zaus thiab luv wavelength, lub ultrasonic yoj muaj kev sib kis tau zoo thiab muaj peev xwm nkag tau zoo.Qhov no yog vim li cas lub tshuab ntxuav ultrasonic yog tsim thiab tsim.
Lub hauv paus ntsiab lus:
Yog vim li cas vim li cas lub tshuab ntxhua khaub ncaws ultrasonic tuaj yeem ua lub luag haujlwm ntawm kev ntxuav cov av yog los ntawm cov hauv qab no: cavitation, acoustic flow, acoustic radiation siab thiab acoustic capillary nyhuv.
Thaum lub sij hawm ntxuav, qhov chaw ntawm cov av yuav ua rau kev puas tsuaj, tev tawm, sib cais, emulsification thiab dissolution ntawm cov av zaj duab xis ntawm qhov chaw.Cov yam ntxwv sib txawv muaj qhov sib txawv ntawm lub tshuab ntxhua khaub ncaws.Ultrasonic cleaners feem ntau vam khom rau kev co ntawm cavitation npuas (tsis tawg cavitation npuas) rau cov av uas tsis dhau nruj heev.Nyob rau ntawm ntug ntawm cov av, vim muaj zog vibration thiab blasting ntawm pulsed npuas, lub zog sib txuas ntawm cov av zaj duab xis thiab nto ntawm cov khoom raug puas tsuaj, uas muaj cov nyhuv ntawm tearing thiab tev.Acoustic hluav taws xob siab thiab cov nyhuv acoustic capillary txhawb kev nkag mus ntawm kev ntxuav cov kua rau hauv qhov chaw me me thiab qhov hws ntawm cov khoom yuav tsum tau ntxuav, thiab lub suab ntws tuaj yeem ua kom cov av sib cais ntawm qhov chaw.Yog tias qhov adhesion ntawm cov av rau saum npoo yog qhov muaj zog, lub micro-shock yoj tsim los ntawm blasting ntawm cavitation npuas yuav tsum tau siv los rub cov av tawm ntawm qhov chaw.
Lub tshuab ntxuav ultrasonic feem ntau yog siv cov "cavitation nyhuv" ntawm cov kua-thaum lub ultrasonic tsis radiate nyob rau hauv cov kua, cov kua molecules yog tej zaum stretched thiab tej zaum compressed, tsim countless me kab noj hniav, lub thiaj li hu ua "cavitation npuas".Thaum lub cavitation npuas tawg tam sim ntawd, lub zog hauv zos hydraulic shock yoj (siab tuaj yeem siab li 1000 cua lossis ntau dua) yuav raug tsim.Nyob rau hauv qhov kev cuam tshuam tas mus li ntawm lub siab no, txhua yam ntawm cov av adhering rau saum npoo ntawm lub workpiece yuav raug tshem tawm;Nyob rau tib lub sij hawm, lub ultrasonic yoj Nyob rau hauv qhov kev txiav txim, lub pulsating nplawm ntawm cov kua ntxuav yog intensified, thiab lub dissolution, dispersion thiab emulsification yog ceev, yog li ntxuav lub workpiece.
Kev tu kom zoo:
a) Cov nyhuv tu zoo, kev huv huv siab thiab kev huv huv ntawm txhua qhov haujlwm;
b) Kev ceev ceev yog ceev thiab cov khoom siv tau zoo tuaj;
c) Tsis tas yuav tsum kov cov kua ntxuav nrog tib neeg txhais tes, uas muaj kev nyab xeeb thiab txhim khu kev qha;
d) Qhov tob tob, qhov tob thiab qhov zais ntawm qhov chaw ua haujlwm kuj tuaj yeem raug ntxuav;
e) Tsis muaj kev puas tsuaj rau saum npoo ntawm lub workpiece;
f) Txuag cov kuab tshuaj, lub zog cua sov, chaw ua haujlwm thiab kev ua haujlwm, thiab lwm yam.
Post lub sij hawm: Jun-22-2021