Cov tshuaj lom neeg E ntawm fais fab Ultrasonic
Ultrasonic tsis tshuam nrog cov xov xwm hauv cov txheej txheem ntawm propagation, thiab cov theem thiab amplitude ntawm cov kev hloov hauv xov xwm, uas tuaj yeem ua rau lub xeev, muaj pes tsawg leeg, qauv, kev ua haujlwm thiab cov cuab yeej ntawm cov kev hloov pauv.Tej kev hloov yog hu ua ultrasonic effect.The sis ntawm ultrasonic yoj thiab xov xwm yuav muab faib ua thermal mechanism, mechanical mechanism thiab cavitation mechanism.Nyob rau hauv ib cov tshuaj tiv thaiv uas tau nce los ntawm ultrasound, cov mechanisms saum toj no, txawm tias nyob ib leeg lossis hauv kev ua kom sib haum, ua kom muaj cov tshuaj tiv thaiv:
1. Thermal mechanism: Thaum ultrasonic tsis tsiv hauv nruab nrab, lawv lub zog hluav yog tas li absorbed los ntawm lub nruab nrab thiab hloov dua siab tshiab rau hauv tshav kub, uas nce qhov kub ntawm qhov nruab nrab.Qhov nyhuv ntawm ua qhov kub ntawm xov xwm hu ua thermal mechanism ntawm ultrasonic .
2. Mechanical mechanics mechanism: Thaum tus zaus yog tsawg, qhov haum coefficient yog me me, thiab lub sij hawm ultrasonic kawg luv, ultrasonic nyhuv tsis nrog los ntawm kev pom tseeb thermal.Thaum lub sij hawm no, cov ultrasonic nyhuv yuav ntaus nqi mus rau mechanical mechanics mechanism, uas yog, cov nyhuv ultrasonic los ntawm lub tshab ntawm cov sawv cev suab suab teb txhua yam.Ultrasonic yoj tseem yog ib daim ntawv uas kis ntawm cov neeg kho tshuab zog. Ultrasonic cov nyhuv tuaj yeem yog qhia los ntawm cov neeg kho tshuab tsis xws li keeb kwm xaav, kev vibration tshaj, acceleration thiab suab siab nyob rau hauv tus txheej txheem ntawm fluctuation.
3. Cavitation mechanism: Ib qho ntawm cov tswv yim tseem ceeb ntawm ultrasonic acoustic-tshuaj yog acoustic cavitation (nrog rau tag nrho, kev loj hlob thiab disintegration ntawm npuas) .Lab tshwm sim muaj ob yam, uas yog, cov ultrasonic muaj ua npuas hauv cov kua thiab cov tshwj xeeb zog ntawm npuas raws li qhov muaj zog ultrasonic nkaus.
Ultrasonic yoj yog ib hom ntawm cov neeg kho tshuab yoj siab, nrog cov yam ntxwv ntawm lub zog concentration, muaj zog fais fab tuag thiab ua li ntawd rau.Ultrasonic tsis muaj li ntawm denser thiab denser longitudinal tsis uas mus ncig los ntawm cov kua nruab nrab.Thaum lub suab lub zog yog siab txaus, tus attraction ntawm cov molecules nyob rau hauv cov kua theem yog tawg cia rau ib lub cavitation nucleus thaum lub sij hawm xoob ib nrab lub sij hawm.Covitation nucleus ntawm li 0.1 mu s lub neej, nws yog nyob rau ntawm instant ntawm tawg tau tsim txog 4000-6000 K thiab lub zos ib puag ncig ntawm kev kub thiab kev kub siab ntawm 100 mpa, thiab tsim ceev ntawm 110 m / s muaj zog feem ntawm micro jet, qhov no phenomenon hu ua ultrasonic cavitation.Ultrasonic tshuaj tiv thaiv mas originates ntawm cov acoustic cavitation mechanism, uas yog lub zog loj ntawm cov tshuaj tiv thaiv acoustic.Cov neeg mob yuav ua kom cov organic tshuaj ntsuab qhov teeb meem tshwm sim hauv cov cavitation npuas, dej theem txuas kev sib tw (aqueous combustion), kev kub nyhiab (pyrolysis) los yog kev tawm tsam dawb, thiab lwm yam.
Nrhiav ib daim ntawv thov ultrasonic cavitation daim ntawv thov?
Nyem Altrasonic Technology kom paub nws.
