Qee lub sij hawm tib neeg to taub kev co vuam thiab ultrasonic vuam vim tias ob qho txheej txheem siv kev siv lub zog ua kom muaj zog rau weld cov khoom siv sib xyaw ua ke. Txawm li cas los xij, ob txoj kev no muaj qhov sib txawv ntawm lwm tus. Cia' s saib qhov sib txawv ntawm ob txheej txheem no thiab yuav siv lawv li cas rau koj kom zoo dua.
Tuav mus weld yas
Ob lub vuam vuam viav vias thiab ultrasonic vuam siv kev vibration siv los ua kom muaj kev sib txhuam thiab kub kom ua tau cov pa hlau txuas.
Kev co kev taw qhia
Cov txheej txheem vuam vias ua rau ib qho sib xyaw ua kom vib xaim sib txheeb rau lwm tus nrog kab sab laug mus rau sab xis. Siv sijhawm thib ob los so koj ob txhais tes, zoo li sim ua kom sov ntawm qhov txias. Qhov kev txiav txim koj ua yog tib yam li qhov kev ua ntawm lub tshuab nqus pa ntawm ob ntu. Kev sib txhuam ntawm ob qho khoom ua kom muaj cua sov rau vuam.
Hauv kev sib piv, cov txheej txheem ultrasonic vuam ua rau ib qho sib xyaw ua kom lub suab sib tshuam mus rau lwm tus, zoo li lub jackhammer ntawm txoj kev pua. Kev co nyob rau hauv cov kev taw qhia no zoo li tsis tsim nyog, tab sis ultrasonic vuam tuaj yeem tsim kev nrawm tsis txaus ntseeg, ua rau muaj kev sib txhuam molecular thiab ua kom muaj cua sov.
Kev co zaus
Zaus yog qhov ntsuas seb muaj pes tsawg lub deeg ua tiav hauv ib ob. Cov txheej txheem vuam kev co vibrates txog 120-240 zaug lossis 120-240 Hz ib pliag, nyob ntawm qhov loj ntawm seem yog welded. Qhov ntau zaus tag nrho nyob rau hauv qhov ntau ntawm tib neeg lub rooj sib hais, yog li cov khoom siv kev co siv lub suab kaw ntom nti los tiv thaiv tus neeg teb xov tooj ntawm lub suab nrov zoo li huab.
Ultrasonic welding vibrates ntawm ultrasonic frequencies, uas yog qhov twg lub npe los ntawm. Yog li, dab tsi yog qhov zaus ultrasonic? Lawv yog cov ntau zaus uas tib neeg lub pob ntseg tuaj yeem hnov, feem ntau 20,000 Hz lossis 20 kHz. Kev khiav dej num nquag ntawm cov txheej txheem feem ntau ultrasound yog 20 txog 40 kHz. Qee qhov kev khiav hauj lwm zaus muaj 15 kHz, uas tsis yog thev naus laus zis nyob rau ntau qhov ntawm ultrasonic, tab sis tseem suav tias yog ultrasonic welding. Daim ntawv thov ntawm 20-40 kHz yog nyob ntsiag to dua li kev co, tab sis vim tias cov resonant zaus ntawm cov khoom seem ntawm cov yas tsawg dua, nws ua rau lub suab, lub suab nrov.
Kev co amplitude
Amplitude yog qhov kev ncua deb ntawm ob qho ntsiab lus ntawm lub suab kev co. Hauv kev co vuam, qhov nrawm feem ntau yog 0.4 txog 1.8 hli hauv lub tshuab loj, thiab 1.8 mus rau 4.0 hli hauv lub tshuab ua kom tsawg. Qhov tsawg dua ntawm kev ua kom tiav, ntau dua qhov ntau zaus.
Hauv kev sib piv, qhov dav ntawm ultrasonic vuam yog ntau me dua. Ntau cov ntawv thov siv 25 txog 125 microns lossis 0.025 txog 0.125 hli. Raws li nrog kev vuam vuam, qhov qis dua ntawm kev ua kom tau, ntau dua cov zaus.
Vuam sij hawm
Kev co vuam yog cov txheej txheem sib nrawm, qhov sij hawm raug mus yog nyob rau hauv thaj tsam ntawm 5-10 s, tab sis qhov nrawm nrawm ntawm ultrasonic vuam yog ntau nrawm dua, thiab lub sijhawm voj voog ib txwm yog li ntawm 1-3 s.
