Iyini i-Ultrasonic Welding

I-Ultrasonic welding iyinqubo yezimboni lapho ukudlidliza kwe-acoustic kwe-high-frequency ultrasonic kusetshenziswa endaweni ukuze izingcezu zokusebenza zibanjelwe ndawonye ngaphansi kwengcindezi yokwakha i-solid-state weld.Ivame ukusetshenziselwa amapulasitiki nezinsimbi, futhi ikakhulukazi ukuhlanganisa izinto ezingafani.Ku-welding ye-ultrasonic, awekho ama-bolt axhumayo, izipikili, izinto zokunamathisela, noma izinto ezinamathelayo ezidingekayo ukuze kuhlanganiswe izinto ndawonye.Uma isetshenziswa ezinsimbi, isici esiphawulekayo sale ndlela ukuthi izinga lokushisa lihlala lingaphansi kwendawo yokuncibilika yezinto ezithintekayo ngaleyo ndlela kuvimbele noma yiziphi izakhiwo ezingafuneki ezingase ziphakame ngenxa yokuchayeka kwezinga lokushisa eliphezulu lezinto zokwakha.

Ukuze ujoyine izingxenye ze-thermoplastic eziyinkimbinkimbi ezibunjiwe, imishini yokushisela ye-ultrasonic ingenziwa ngokwezifiso kalula ukuze ivumelane nokucaciswa okuqondile kwezingxenye ezishiselwe.Izingxenye zihlanganiswe phakathi kwesidleke esimise okumile (i-anvil) kanye ne-sonotrode (uphondo) exhunywe ku-transducer, kanye nokudlidliza kwe-acoustic okungu-~20 kHz okuphansi kuyakhishwa.(Qaphela: Amafrikhwensi ajwayelekile asetshenziswa ekushiseleni kwe-ultrasonic ye-thermoplastics ngu-15 kHz, 20 kHz, 30 kHz, 35 kHz, 40 kHz kanye no-70 kHz).Lapho ushisela amapulasitiki, isikhombimsebenzisi sezingxenye ezimbili senzelwe ngokukhethekile ukugxilisa inqubo yokuncibilika.Enye yezinto ivamise ukuba nomqondisi wamandla oyisipikili noma oyindilinga othinta ingxenye yesibili yepulasitiki.Amandla e-ultrasonic ancibilikisa ukuthintana kwephuzu phakathi kwezingxenye, enze ilunga.Le nqubo iyindlela enhle ezenzakalelayo yokunamathisela iglue, izikulufu noma imiklamo ye-snap-fit.Ngokuvamile isetshenziswa nezingxenye ezincane (isb. omakhalekhukhwini, izinto zikagesi ezithengwayo, amathuluzi ezokwelapha alahlwayo, amathoyizi, njll.) kodwa ingasetshenziswa ezingxenyeni ezinkulu njengeqoqo elincane lamathuluzi ezimoto.I-Ultrasonics ingase isetshenziselwe ukushisela izinsimbi, kodwa ngokuvamile ilinganiselwe kumashisela amancane ensimbi ethambile, ethambile, isb i-aluminium, ithusi, i-nickel.I-Ultrasonics ngeke isetshenziswe ekushiseleni i-chassis yemoto noma ekushiseleni izingcezu zebhayisikili ndawonye, ​​ngenxa yamazinga wamandla adingekayo.

I-Ultrasonic welding of thermoplastics ibangela ukuncibilika kwendawo kwepulasitiki ngenxa yokumuncwa kwamandla okudlidliza eduze kwelunga elizoshiselwa.Ezinsimbi, ukushisela kwenzeka ngenxa yokuhlakazeka komfutho ophezulu wama-oxide angaphezulu kanye nokunyakaza kwendawo kwezinto.Nakuba kukhona ukushisa, akwanele ukuncibilikisa izinto eziyisisekelo.

I-Ultrasonic welding ingasetshenziselwa kokubili amapulasitiki aqinile futhi athambile, njengamapulasitiki angama-semicrystalline, nezinsimbi.Ukuqonda kwe-ultrasonic welding kuye kwanda ngokucwaninga nokuhlola.Ukusungulwa kwemishini eyinkimbinkimbi futhi engabizi kanye nesidingo esikhulayo sezinto zepulasitiki neze-elekthronikhi kuholele olwazini olukhulayo lwenqubo eyisisekelo.Kodwa-ke, izici eziningi zokushisela i-ultrasonic zisadinga ukutadisha okwengeziwe, njengokuhlobanisa ikhwalithi ye-weld ukucubungula amapharamitha.I-Ultrasonic welding iyaqhubeka iyinsimu ethuthuka ngokushesha.