Rub koj ob txhais tes ua ke nrawm dua. Pom dab tsi? Lawv ua kom sov, yog? Yog tias koj siv rab rauj thiab phaus hlau kom sai thiab rov ua dua, koj yuav pom tias qhov chaw uas tus rauj ntog cov hlau ua kom sov, ib yam nkaus. Hauv ob qho piv txwv no, cov cua sov yog vim los ntawm kev txhuam. Tam sim no xav txog qhov muab tshuaj ntxuav tes lossis sib tsoo uas rub rau tes phav phav zaug ib pliag. Kev txhuam cov cua sov tuaj yeem ua kom nce qhov kub kub hauv lub sijhawm luv luv. Yeej, cov suab nrov (ultrasound) ua rau lub suab nrawm dua hauv cov khoom siv kom tau txais welded. Qhov kev co ua rau cov khoom ua rau txhawm rau sib txhuam thiab qhov kev sib txhuam ua rau qhov kub ntawm qhov chaw nyob hauv kev sib cuag. Kev kub ntxhov sai no yog qhov tsim cov xwm txheej rau cov khoom siv kom muab sib dhos ua ke.
Cov khoom siv welding ultrasonic muaj plaub qhov loj. Kev siv hluav taws xob hloov hluav taws xob tsawg (50-60 Hz) mus rau qhov hluav taws xob loj (20 - 40 kHz; 1 kHz = 1000 Hz). Tom ntej no, lub tshuab hloov kho lossis lub hloov pauv hloov lub zog hluav taws xob rau hauv cov suab siab (ultrasound). Lub rooj txhawb zog ua rau ultrasound deeg sib tw. Thaum kawg, tus kub los yog sonotrode tsom qhov ultrasound deeg thiab xa lawv mus rau cov ntaub ntawv yuav tsum tau welded. Dhau li ntawm cov tej daim, muaj thaiv nrog uas cov ntaub ntawv welded yog teem thiab tuav. Kuj tseem muaj qee txoj kev los siv dag zog (feem ntau yog cua nias nkag los ntawm lub tshuab ntsuas pneumatic) los tuav cov khoom ua ke thaum ua vuam.
Yog li cov ntaub ntawv dab tsi thiab kev lag luam coj tau zoo dua ntawm txoj kev ntse no? Ultrasonic vuam ntawm cov yas s yog siv dav hauv kev tsim cov khoom siv hluav taws xob, khoom siv kho mob thiab qhov chaw tsheb. Piv txwv, ultrasonic vuam siv los ua kev sib txuas hluav taws xob ntawm lub koos pis tawj hluav taws xob, thiab sib sau ua ke cov khoom siv hluav taws xob xws li hloov hluav taws xob , lub tshuab hluav taws xob thiab lub zog ors . Cov cuab yeej siv kho mob, xws li ntsuas lub cav, cov kav dej, lub taub lim dej thiab lub ntsej muag lub ntsej muag tseem tau sib dhos siv ultrasonic vuam. Kev lag luam ntim tshuab siv cov txheej txheem no los ua cov yeeb yaj kiab, sib dhos cov hlab thiab sawv hlwv. Txawm tias Ford Motor Company tau tshawb nrhiav siv vuam ultrasonic los ua cov txhuas chassis hauv tsheb.
