Ukusika i-webbing ye-ultrasonic kunye nokusetyenziswa komgaqo we-welding
Umgaqo wokusika kunye nokuWelda nge-Ultrasonic
Ukusika kunye nokuwelda nge-ultrasonic yicandelo elingaphantsi kwezicelo ze-ultrasonic kushishino, kwaye isetyenziswa kakhulu ngenxa yeempawu zayo ezinobuhlobo nokusingqongileyo, ezisebenzayo, nezinomtsalane kubuhle.
Umgaqo wokusika kunye nokuwelda nge-ultrasonic
Ukusika kunye nokudibanisa i-webbing ye-ultrasonic kusebenzisa ukungcangcazela koomatshini okuphindaphindekayo kwe-20-40kHz, kudlulisela amandla kumphezulu woqhagamshelwano lwe-webbing ngentloko yokudibanisa. 1. Ukuguqulwa kwamandla: Ijenereyitha ye-ultrasonic iguqula amandla ombane abe kukungcangcazela koomatshini okuphindaphindekayo, okwandiswa yi-amplitude transformer ize idluliselwe kwintloko yokudibanisa. 2. Ukuveliswa kobushushu obudibeneyo: Intloko yokudibanisa icinezela kwi-webbing, ibangela ukungqubana okuphindaphindekayo phakathi kweefayibha ngaphakathi kwi-webbing, ngoko nangoko ivelise amaqondo obushushu aphezulu akwindawo ethile ye-500-1000℃. 3. Ukugquma kunye nokuQhawula okuHlanganisiweyo: Ubushushu obuphezulu bunyibilikisa iifayibha ze-webbing (ezifana ne-nylon kunye ne-polyester), ngelixa uxinzelelo lwentloko yokudibanisa luqina inxalenye enyibilikisiweyo, lwenza umaleko oqinileyo weld. Ukuba isetyenziswa nentloko yokudibanisa enomphetho othile, ubushushu obuphezulu bunokunqumla i-webbing ngaxeshanye, bufezekise "ukusika + ukugquma" okudibeneyo. 4. Ukuphola kunye nokuBumba: Emva kokuba ukungcangcazela kuyekile, uxinzelelo lugcinwa imizuzwana eyi-0.1-0.5, okuvumela indawo edibeneyo ukuba iphole kwaye iqine ngokukhawuleza, igqibezele inkqubo yokusika kunye nokugquma. (Iinkqubo ze-pneumatic zibonelela nge-cushion, zikwaqinisekisa ukupholisa kunye nokubumba ngexesha lenkqubo yokusika kunye nokuwelda.)
Ukwakhiwa kwenkqubo yokusika kunye nokuwelda ye-ultrasonic
Inkqubo yokuwelda yeplastiki ye-ultrasonic esetyenziswa rhoqo inamacandelo amathathu aphambili: ijenereyitha ye-ultrasonic (ibhokisi yombane), i-transducer ye-ultrasonic (i-vibrator), kunye ne-ultrasonic mold (intloko ye-mold, intloko ye-welding, uphondo).
Ijenereyitha ye-ultrasonic (ibhokisi yombane) Ii-transducers ze-ultrasonic (ii-vibrators), ii-molds ze-ultrasonic (iintloko ze-mold, iintloko ze-welding, iimpondo)
1. Ijenereyitha ye-ultrasonic (ibhokisi yombane): Iguqula amandla ombane abe yimveliso eqinileyo ye-high-frequency, i-high-voltage output.
2. I-transducer ye-ultrasonic (i-oscillator): Isixhobo se-acoustic esiguqula amandla, siguqula amandla ombane abe ngamandla oomatshini.
3. Isandisi-lizwi: Ubungakanani bokungcangcazela koomatshini be-transducer buyatshintshwa ngokusebenzisa umlinganiselo wokufumana olungiselelwe kwangaphambili.
4. Iimbumba (iintloko zokuwelda, iimpondo): Yenzelwe ngokwemilinganiselo ethile ngokweemfuno zezicelo zokuwelda kunye nokusika, kwaye yenzelwe ngeempawu ze-acoustic ukuhlangabezana neemfuno ze-resonance zenkqubo ye-ultrasonic. Ngezantsi, ndiza kusebenzisa iifomyula ezininzi ukuchaza isenzeko sokulungisa iiparameter kwizicelo.
Amandla = Ubungakanani * Uxinzelelo * Ixesha * I-Konstant K = Amandla * Ixesha
Iifomyula ezingasentla zibonisa ukuba ekudibaniseni nasekusikeni, ubukhulu be-ultrasonic wave (enokumiselwa kwijenereyitha), uxinzelelo (uxinzelelo lomoya okanye i-torque yesilinda yombane, kunye nokuqina kwesakhiwo kunye nobunzima), kunye nexesha lokukhupha amaza zihambelana kakuhle nesiphumo sokuhlanganisa kunye nokusika. Ngamanye amazwi, ukuba imveliso ayinqunywanga kakuhle, ezi parameters zinokulungiswa kakuhle. Ngaba oku kuthetha ukuba okukhona ezi parameters ziphezulu, kokukhona zingcono? Kakade akunjalo!
P = K∗A∗f∗δ, apho u-P emele amandla okuwelda, kwi-W;
K yi-constant enobukhulu obunxulumene nokuhanjiswa kwesandi kunye nokuchithwa kwamandla kwezinto. Oku kuthetha ukuba sihlala sithi izinto ezahlukeneyo zifuna ukulungiswa kweeparameter ezahlukeneyo ukuze zihlangabezane neemfuno.
A imele indawo yokusika kwe-weld, elinganiswa ngeemitha zesikwere (㎡). Lo ngumphezulu woqhagamshelwano lokusika kwe-weld, ngoko ke ubude kunye ne-engile yomphetho wokusika zihlala zimisela le ndawo.
f yi-ultrasound frequency, nto leyo ethetha ukuba ngokwethiyori, ii-frequency eziphezulu kulula ukuzidibanisa. Nangona kunjalo, ngokwe-acoustic, i-frequency ephezulu, kokukhona kunzima ukufikelela kwi-amplitude enkulu; iyunithi yi-Hz.
d imele ubukhulu, obulinganiswa ngeemitha (m). Ngokwethiyori, ubukhulu obukhulu bubangela ukuwelda nokusika okungcono. Nangona kunjalo, ubomi bokudinwa kwezinto zesinyithi bunxulumene nokuphindaphindeka, iimpawu zezinto, uxinzelelo, ixesha, uxinzelelo, kunye nobunzima, kwaye ke ngoko kuchaphazeleka zezinye iiparameter.
Izinto ezintandathu ezichaphazela iziphumo zokusika kunye nokuwelda nge-ultrasonic:
Uxinzelelo + Ixesha + Ulwakhiwo lweMechanical + Izixhobo zeMveliso + Ukulungisa iimpazamo
1. Uxinzelelo lwe-Ultrasonic welding
Ukusebenzisa uxinzelelo olufanelekileyo kumphezulu we-welding kubangela ukuba izinto ze-welding zitshintshe ukusuka kwi-elastic ukuya kwiplastiki, kukhuthaza ukusasazwa kweemolekyuli, kwaye kususa umoya oseleyo kwi-weld, ngaloo ndlela kwandisa ukusebenza kokuvala komphezulu we-weld. Uxinzelelo ngokubanzi aludluli kwi-0.5 MPa.
2. Ixesha lokuwelda/lokusika nge-ultrasonic (ixesha lokukhupha amaza)
Ixesha elifanelekileyo lokunyibilika kunye nexesha elaneleyo lokupholisa libalulekile. Xa ubushushu buphuma ngokungaguqukiyo, ixesha elaneleyo liya kubangela ukuwelda okungaphelelanga, ngelixa ixesha eligqithisileyo liya kubangela ukuguquka kwe-weldment, ukugcwala kwe-slag, kwaye ngamanye amaxesha iindawo ezishushu (ukutshintsha kombala) kwiindawo ezingaweldanga. Kubalulekile ukuqinisekisa ukuba umphezulu we-weld ufunxa ubushushu obaneleyo ukufikelela kwimeko enyibilikisiweyo ngokupheleleyo ukuqinisekisa ukusasazeka kweemolekyuli kunye nokudibana okwaneleyo. Kwangaxeshanye, ixesha elaneleyo lokupholisa liyimfuneko ukuze i-weld ifumane amandla aneleyo.
3. Ubungakanani be-ultrasonic
4. Ulwakhiwo lwemishini
Ukuchaneka kunye nokuzinza kokwenziwa kwesakhelo kuchaphazela ngokuthe ngqo isiphumo sokuwelda, ingakumbi kwezinye iimveliso ezichanekileyo, apho ulwakhiwo loomatshini kufuneka luhambelane nokuchaneka kwemveliso.
5. Izixhobo zeMveliso
Izinto ezifana nezinto ezisetyenziswa kwiindawo ezidityanisiweyo, ulwakhiwo lwazo, ubukhulu bazo, kunye nokumelana noxinzelelo nazo zichaphazela ngokuthe ngqo isiphumo sokudityaniselwa.
6. Ukulungisa iingxaki zezixhobo
Ukuqukumbela, ukuze imveliso ifumane iziphumo ezilungileyo zokusika kunye nokuwelda nge-ultrasonic, ukulungisa izixhobo kukwabalulekile. Ukuhambelana okuguquguqukayo kunye nokulungiswa kweeparameter ezahlukeneyo kunye nokulungisa iimpazamo kwindawo eyenziwa ziinjineli kudlala indima ebalulekileyo.