Ultrasonic thev naus laus zis tau pib siv rau hauv kev kho mob hauv xyoo 1950 thiab 1960, tab sis tom qab ntawd nws kuj ua tau zoo heev.Tam sim no, ntxiv rau daim ntawv thov hauv kev kho mob, ultrasonic technology tau paub tab hauv kev lag luam semiconductor, kev lag luam kho qhov muag, kev lag luam petrochemical thiab lwm yam, tab sis nws tsuas yog siv nws cov yam ntxwv ntawm kev coj zoo thiab muaj zog nkag mus rau kev ua haujlwm tu. .

Ultrasonic thev naus laus zis tau dhau los ua ib qho tseem ceeb ntawm kev ntxiv dag zog.Ntxiv nrog rau cov ntawv thov uas tau hais los saum toj no, nws tseem muaj peev xwm ua tau zoo tshaj plaws hauv lwm qhov kev tsim kho.

Lub hauv paus ntsiab lus ntawm ultrasonic ntxiv dag zog rau metallurgical txheej txheem:

Raws li peb txhua tus paub, "peb qhov kev hloov pauv thiab ib qho tshuaj tiv thaiv" hauv cov txheej txheem metallurgical yog qhov tseem ceeb cuam tshuam rau cov txheej txheem kev ua tau zoo, ceev thiab muaj peev xwm, thiab tseem qhia txog tag nrho cov txheej txheem ntawm metallurgical thiab tshuaj.Lub npe hu ua "peb kev hloov pauv" yog hais txog kev hloov pauv huab cua, hloov pauv hloov pauv thiab hloov pauv kub, thiab "ib qho tshuaj tiv thaiv" yog hais txog cov txheej txheem ntawm cov tshuaj tiv thaiv.Hauv cov ntsiab lus, yuav ua li cas txhawm rau txhim kho cov txheej txheem metallurgical yuav tsum pib nrog kev txhim kho kev ua tau zoo thiab ceev ntawm "peb kis tau tus mob thiab ib qho tshuaj tiv thaiv".

Los ntawm qhov kev pom no, ultrasonic thev naus laus zis ua lub luag haujlwm zoo hauv kev txhawb nqa kev hloov pauv ntawm huab hwm coj, lub zog thiab cua sov, uas yog txiav txim siab los ntawm cov yam ntxwv ntawm ultrasonic.Hauv cov ntsiab lus, daim ntawv thov ntawm ultrasonic thev naus laus zis hauv cov txheej txheem metallurgical yuav muaj peb lub ntsiab lus hauv qab no:

1, Cavitation nyhuv

Cavitation nyhuv yog hais txog cov txheej txheem dynamic ntawm kev loj hlob thiab lub cev qhuav dej ntawm micro gas core cavitation npuas uas twb muaj lawm nyob rau hauv cov kua theem (melt, tov, thiab lwm yam) thaum lub suab siab mus txog ib tug tej yam nqi.Thaum lub sij hawm tus txheej txheem ntawm kev loj hlob, rupture thiab extinction ntawm micro npuas tsim nyob rau hauv cov kua theem, kub me ntsis tshwm nyob rau hauv lub me me qhov chaw nyob ib ncig ntawm lub tshuab npuas, uas ua rau lub kub kub thiab siab zog cheeb tsam los txhawb cov tshuaj tiv thaiv.

2, Mechanical nyhuv

Mechanical nyhuv yog cov nyhuv tsim los ntawm ultrasonic mus rau pem hauv ntej hauv nruab nrab.Lub siab-frequency vibration thiab hluav taws xob siab ntawm ultrasonic tuaj yeem tsim kev ntxhov siab thiab ntws, kom cov kev taw qhia nruab nrab tuaj yeem nkag mus rau hauv lub xeev kev vibration hauv nws qhov chaw nthuav tawm, thiaj li ua kom lub diffusion thiab dissolution txheej txheem ntawm cov khoom.Cov nyhuv tshuab ua ke nrog kev vibration ntawm cavitation npuas, lub dav hlau muaj zog thiab hauv zos micro impingement generated ntawm cov khoom nto tuaj yeem txo qhov nro thiab kev sib txhuam ntawm cov kua, thiab rhuav tshem cov ciam teb ntawm cov khoom-kua interface, thiaj li ua tiav. cov nyhuv uas zoo tib yam low-frequency mechanical stirring tsis tuaj yeem ua tiav.

3 、 Cov nyhuv thermal

Cov nyhuv thermal yog hais txog cov cua kub tso tawm los yog nqus los ntawm lub cev hauv cov txheej txheem ntawm kev hloov ntawm qee qhov kub.Thaum ultrasonic yoj propagates nyob rau hauv nruab nrab, nws lub zog yuav tas li absorbed los ntawm nruab nrab hais, thiaj li hloov nws mus rau hauv tshav kub zog thiab txhawb lub tshav kub hloov nyob rau hauv cov tshuaj tiv thaiv txheej txheem.

Los ntawm cov txiaj ntsig tshwj xeeb ntawm ultrasonic thev naus laus zis, nws tuaj yeem txhim kho qhov ua tau zoo thiab nrawm ntawm "peb kis tau tus mob thiab ib qho tshuaj tiv thaiv" hauv cov txheej txheem metallurgical, txhim kho cov ntxhia dej, txo cov khoom siv raw thiab txo lub sijhawm cov tshuaj tiv thaiv, kom ua tiav. lub hom phiaj ntawm kev txuag hluav taws xob thiab kev txo qis.