Ua ultrasonic
Tej zaum koj tsis tau hnov txog nws, tab sis ultrasound tuaj yeem pab ua cov txheej txheem precision mus rau hauv cov khoom siv nyuaj thiab tsis yooj yim.
Keeb kwm ntawm kev ua ultrasonic tuaj yeem raug taug mus rau 50 xyoo dhau los, tab sis kuj muaj qee tus neeg ua haujlwm hnub no. Tus txheej txheem ua haujlwm ntawm ultrasonic kev ua haujlwm yog xa cov hluav taws xob tsawg rau cov hloov tshuab, uas hloov lub zog hluav taws xob rau hauv cov lus tsa suab hloov kho. Qhov high-zaus, tsawg ua kom nrov tshee txav yog acoustically kis tau rau cov cuab yeej siv kev cai, feem ntau yog ua los ntawm cov hlau, uas muaj kev cuam tshuam linear oscillations. Cov cuab yeej txav yog feem ntau tsawg dua 0.002 ntiv tes (0.508 hli) ntawm tus nqi kwv yees li 20 kHz.
Kev ua tiav hauv ultrasonic tuaj yeem txiav iav, sapphire, engineering ceramics, silicon carbide, quartz, cov khoom siv hluav taws xob ib leeg, PCD, ferrite, graphite, glassy carbon, cov ntaub ntawv sib xyaw thiab cov piezoelectric ceramics.
Thaum lub cuab yeej txav, cov dej ntws tawm ntawm cov cuab yeej thiab cov haujlwm. Lub slurry muaj cov xaim abrasive hais raug tshem tawm hauv dej los yog tshuaj lom neeg. Cov Abrasives suav nrog pob zeb diamond, alumina, boron carbide thiab silicon carbide. Qhov xaiv abrasive nyob ntawm qhov hardness ntawm workpiece cov khoom. Qhov hnyav dua qhov workpiece, qhov nyuaj ntawm abrasive. Thaum cov cuab yeej oscillates, nws hammers cov lus rau hauv cov khoom ua haujlwm thiab grinds nws, tawm hauv cov duab inverted npliag ntawm lub cuab tam khoom. Lub zog quab yuam tau thov rau lub ntsej muag ua kom pom tseeb, ua rau lub ntsej muag me me ntawm qhov workpiece, thiaj li tshem cov khoom tawm. Tus nqi ntawm kev quab yuam tau thov nyob ntawm lub cuab yeej lossis daim ntawv thov. Piv nrog cov txheej txheem ua qub, cov txiaj ntsig yog qhov kev txo qis hauv kev puas hauv av. Nyeg, qhov no txo txoj haujlwm ntawm workpiece breakage uas tuaj yeem ua rau cov khoom siv tsis ua tiav.
