Ultrasonic welding yog txheej txheem kev lag luam uas yog qhov muaj zog ultrasonic acoustic vibrations hauv zos siv rau cov khoom ua haujlwm tau tuav ua ke nyob rau hauv siab los tsim cov khoom siv hauv xeev.Nws yog feem ntau siv rau cov yas thiab hlau, thiab tshwj xeeb tshaj yog rau kev koom nrog cov khoom sib txawv.Nyob rau hauv ultrasonic vuam, tsis muaj txuas bolts, ntsia hlau, cov ntaub ntawv soldering, los yog adhesives tsim nyog los khi cov ntaub ntawv ua ke.Thaum siv rau cov hlau, ib qho tseem ceeb ntawm txoj kev no yog tias qhov kub thiab txias nyob qis dua qhov melting point ntawm cov ntaub ntawv cuam tshuam yog li tiv thaiv cov khoom tsis zoo uas yuav tshwm sim los ntawm qhov kub thiab txias ntawm cov ntaub ntawv.
Rau kev koom nrog kev txhaj tshuaj molded thermoplastic qhov chaw, cov khoom siv ultrasonic vuam tuaj yeem ua tau yooj yim kho kom haum rau qhov tshwj xeeb ntawm cov khoom raug welded.Cov khoom yog sandwiched ntawm lub zes zoo li lub zes (anvil) thiab ib tug sonotrode (horn) txuas nrog ib tug transducer, thiab ib tug ~ 20 kHz low-amplitude acoustic vibration yog emitted.(Ceeb Toom: Feem ntau siv nyob rau hauv ultrasonic vuam ntawm thermoplastics yog 15 kHz, 20 kHz, 30 kHz, 35 kHz, 40 kHz thiab 70 kHz).Thaum welding plastics, lub interface ntawm ob qhov chaw yog tshwj xeeb tsim los mloog cov txheej txheem melting.Ib qho ntawm cov ntaub ntawv feem ntau muaj ib tug spiked los yog rounded zog tus thawj coj uas hu rau cov yas thib ob.Lub zog ultrasonic melts qhov taw tes sib cuag ntawm qhov chaw, tsim kom muaj kev sib koom ua ke.Cov txheej txheem no yog ib qho zoo automated lwm txoj rau cov kua nplaum, screws los yog snap-fit designs.Nws feem ntau yog siv nrog cov khoom me me (xws li xov tooj ntawm tes, cov khoom siv hluav taws xob siv hluav taws xob, cov cuab yeej kho mob pov tseg, cov khoom ua si, thiab lwm yam) tab sis nws tuaj yeem siv rau ntawm qhov loj npaum li cov khoom siv tsheb me me.Ultrasonics kuj tuaj yeem siv los vuam hlau, tab sis feem ntau txwv rau cov vuam me me ntawm cov hlau nyias, cov hlau tsis zoo, xws li txhuas, tooj liab, npib tsib xee.Ultrasonics yuav tsis siv nyob rau hauv vuam lub chassis ntawm lub tsheb los yog nyob rau hauv vuam tej daim ntawm lub tsheb kauj vab ua ke, vim hais tias ntawm lub hwj chim theem yuav tsum tau.
Ultrasonic welding ntawm thermoplastics ua rau lub zos melting ntawm cov yas vim yog nqus ntawm lub zog vibrational raws li kev sib koom ua ke yuav tsum tau welded.Nyob rau hauv cov hlau, welding tshwm sim vim kev kub siab dispersion ntawm nto oxides thiab lub zos txav ntawm cov ntaub ntawv.Txawm hais tias muaj cua sov, nws tsis txaus los yaj cov ntaub ntawv hauv paus.
Ultrasonic vuam siv tau rau ob qho tib si tawv thiab mos plastics, xws li semicrystalline plastics, thiab hlau.Kev nkag siab ntawm ultrasonic vuam tau nce nrog kev tshawb fawb thiab kev sim.Kev tsim cov cuab yeej siv ntau dua thiab pheej yig dua thiab xav tau ntau ntxiv rau cov khoom siv yas thiab hluav taws xob tau ua rau muaj kev paub ntau ntxiv txog cov txheej txheem tseem ceeb.Txawm li cas los xij, ntau yam ntawm ultrasonic vuam tseem xav tau kev kawm ntxiv, xws li hais txog kev vuam zoo rau cov txheej txheem tsis.Ultrasonic welding tseem yog ib qho kev loj hlob sai heev.
Post lub sij hawm: Dec-02-2021