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Ingabe ucasulwa ukuthi isikhwama esiyinhlanganisela osenzayo sivame ukuwohloka?Uyazazi izizathu zokuthi kungani isikhwama esiyinkimbinkimbi osi-ode kungenzeka siqhume?Okulandelayo, vumela i-Guangdong Lebei Packaging Co., Ltd. ikuphendule.
Kunezizathu ezinkulu eziyisikhombisa.
Eyodwa izinga lokushisa lokuvalwa kwe-thermal linethonya eliqondile kakhulu emandleni okuvala okushisayo.
Izinga lokushisa elincibilikayo lezinto ezihlukahlukene linquma ngokuqondile izinga lokushisa elincane lokuvala elishisayo lesikhwama esiyinhlanganisela.Enqubweni yokukhiqiza, ngenxa yokucindezela kokuvala okushisayo, isivinini sokwenza isikhwama kanye nobukhulu be-substrate eyinhlanganisela, izinga lokushisa langempela lokuvala okushisayo ngokuvamile liphakeme kunokushisa okuncibilika kwezinto ezishisayo zokuvala.Lapho ingcindezi yokuvala eshisayo iphansi, izinga lokushisa elishisayo lokuvala liphezulu;lapho isivinini sishesha, ukuqina kwezinto zefilimu eyinhlanganisela, kukhuphuka izinga lokushisa elidingekayo lokuvala okushisa.Uma izinga lokushisa elishisayo lokuvala liphansi kunephuzu lokuthambisa lempahla yokuvala eshisayo, akunakwenzeka ukuvala ngempela isendlalelo sokuvala esishisayo noma ungakhuphula kanjani ukucindezela noma ukwelula isikhathi sokuvala esishisayo.Kodwa-ke, uma izinga lokushisa elishisayo lokuvala uphawu liphezulu kakhulu, kulula ukulimaza i-extrusion encibilikisiwe yezinto ezishisayo zokuvala onqenqemeni lwe-welding, okuholela esenzweni "sokusikwa kwezimpande", okunciphisa kakhulu amandla okuvala ashisayo ophawu futhi. ukumelana komthelela wesikhwama.
Okwesibili, uhlobo, ukujiya kanye nekhwalithi ye-thermal sealing layer material inethonya eliwujuqu emandleni okufaka uphawu okushisa.
Izinto ezisetshenziswa kakhulu zokuvala uphawu ezishisayo zokupakisha okuyinhlanganisela yi-CPE, i-CPP, i-EVA, ingcina encibilikayo eshisayo kanye nokunye okuxutshwa kwe-ionic resin noma ifilimu eguquliwe.Ugqinsi longqimba olushisayo lokuvala uphawu ngokuvamile luphakathi kuka-20 no-80 μ m, futhi ezimweni ezikhethekile, kufika ku-100~200 μ m.Impahla efanayo yokuvala eshisayo, amandla ayo okuvala okushisayo ayanda ngokukhula kokuqina kokuvalwa kwe-thermal.Amandla okuvala ashisayo esikhwama sokupheka ngokuvamile ayadingeka ukuze afinyelele ku-40~50 Newton, ngakho-ke ubukhulu bezinto ezishisayo zokuvala kufanele zibe ngaphezu kuka-60~80 μ m.
Okwesithathu, ukuze kuzuzwe amandla afanele ophawu olushisayo, ingcindezi ethile ibalulekile.
Ezikhwameni zokupakisha ezikhanyayo nezilula, ingcindezi yokuvala okushisayo kufanele ifinyelele okungenani ku-2kg / cm2, futhi ikhule ngokufanele ngokunyuka kokuqina okuphelele kwefilimu eyinhlanganisela.Uma ukucindezela kokushisa ukushisa kunganele, kunzima ukufeza ukuhlanganisa kwangempela phakathi kwamafilimu amabili, okwenza ukuvalwa kokushisa kwendawo akukuhle, noma kunzima ukubamba ama-bubbles ahlanganiswe phakathi kwe-weld, okubangela ukuthungatha okubonakalayo;Yebo, ukucindezela okukhulu kokuvalwa kokushisa akuyona into engcono, ukushisa kufanele kulungele ukungonakalisi onqenqemeni lwe-welding, ngoba impahla yokuvala ukushisa onqenqemeni lwe-welding isesimweni esincibilikisiwe, ukucindezela okukhulu kulula ukukukhama. kude ingxenye yempahla yokuvala ukushisa, ukuze unqenqema lwe-weld lube yisimo sokusika kancane, i-weld seam iba brittle, futhi amandla okuvala ukushisa ancishiswe.
Okwesine, uma i-weld ngemva kokuvalwa okushisayo ingapholiswanga kahle, ngeke nje ithinte ukubukeka nokuqina kwe-weld, kodwa futhi ibe nomthelela othile emandleni okufaka uphawu okushisa.
Inqubo yokupholisa iwukuqeda inqubo yokugxilisa ingcindezi ngokubumba i-weld seam encibilikisiwe eshisayo emazingeni okushisa aphansi ngaphansi kwengcindezi ethile.Ngakho-ke, ukucindezela akwanele, ukujikeleza kwamanzi okupholisa akubushelelezi, inani lokujikeleza alanele, izinga lokushisa lamanzi liphezulu kakhulu, noma ukupholisa kungenasikhathi kuzoholela ekupholiseni okubi, umkhawulo wokuvalwa kokushisa uyawohloka, futhi amandla okuvala ukushisa ancishisiwe.
Okwesihlanu, isikhathi sokufaka uphawu esishisayo sinqunywa ngokuyinhloko ijubane lomshini wokwenza izikhwama.
Isikhathi sokuvalwa kwe-thermal futhi siyisici esibalulekile esithinta amandla nokubukeka kokutywinwa kwe-weld.Ukushisa okufanayo kokufakwa uphawu okushisayo nokucindezela, isikhathi sokufaka uphawu esishisayo side, ukuhlanganiswa kongqimba olushisayo olushisayo kugcwele ngokugcwele, inhlanganisela iqine kakhulu, kodwa isikhathi sokufaka uphawu esishisayo side kakhulu, kulula ukubangela ukushwabana kwe-weld, kuthinta ukubukeka.
Okwesithupha, izikhathi eziningi zokuvalwa kokushisa, kuyanda amandla okuvala ukushisa.
Inani lokuvalwa kokushisa okushisayo isikhathi eside lincike esilinganisweni sobude obusebenzayo kanye nobude besikhwama, nobude bokuvalwa kokushisa okubude be-longitudinal bunqunywa inani lamasethi eyunithi yokufaka uphawu eguquguqukayo eshisayo.Ukuvalwa kahle okushisayo, okudinga inani lezikhathi ezishisayo zokuvala okungenani kabili.Kunamaqembu amabili ommese oshisayo emshinini wokwenza izikhwama ezijwayelekile, futhi uma uphezulu ukugqagqana kommese oshisayo, kuba ngcono umphumela wokuvala oshisayo.
Ekugcineni, ifilimu eyinhlanganisela enokwakheka nokujiya okufanayo, lapho amandla okuhlubula engqimba eyinhlanganisela ephakama, ayanda amandla okuvala ashisayo.
Emikhiqizweni enamandla aphansi okuhlubula okuyinhlanganisela, ukwehluleka kwe-weld kuvame ukuba ukuhlubula kokuqala kwefilimu eyinhlanganisela kumthungo we-weld, okuholela ekutheni ungqimba lwangaphakathi lokuvala olushisayo lube namandla anamandla abhubhisayo, futhi ungqimba olungaphezulu lulahlekelwa umphumela wokuqinisa. , ngakho-ke amandla okufaka uphawu okushisa kwe-weld ayancipha kakhulu.Uma amandla okuhlubula okuyinhlanganisela emakhulu, ukukhumula kwe-inter layer ngeke kwenzeke, futhi amandla okuvala ashisayo okuvala angempela makhulu kakhulu.
Isikhathi sokuthumela: Sep-16-2023