Njengoko ubusika busondela, iqondo lobushushu liye lihle liphinde lihle, kwaye ezinye iingxaki zokupakisha eziguquguqukayo zasebusika ziye zanda kakhulu, njengeIingxowa ezibilisiweyo ze-NY/PEkwayeNY/CPP iingxowa retortukuba nzima kwaye brittle; i-adhesive ine-tack yokuqala ephantsi; kunye nenkangeleko edibeneyo yemveliso Iingxaki ezinjengomahluko.
01 I-adhesive ine-tack yokuqala ephantsi
Kuba amaqondo obushushu kwiindawo ezahlukeneyo selehlile.abanye abathengi baye babika ukuba amandla okubambisana okuqala okushisa okuphezulu kweglue yokupheka i-UF-818A / UK-5000 yehlile xa besenza izakhiwo ze-PET / AL / RCPP, oku kuthetha ukuba amandla omgangatho wangaphandle alungile, kodwa amandla umaleko wangaphakathi uphantsi kakhulu. Kodwa emva kokuyibeka kwindawo yokuguga imizuzu elishumi, ngokukhawuleza ufumana amandla amahle. Umthengi usebenzisa le mveliso ngaphezu kwesiqingatha sonyaka kwaye uzinzile kakhulu, kwaye inkqubo edibeneyo yangoku ayizange itshintshe ukusuka ekuqaleni.
Emva kokuhlolwa kwendawo, kwafunyaniswa ukuba ukunyanzeliswa kwezinto eziphathekayo kwakuqhelekileyo kwaye isixa seglue esisetyenzisiweyo sifike kwi-3.7 ~ 3.8g / m2, kwaye akukho ngxaki. Nangona kunjalo, xa iyunithi ejikelezayo yadibana nefilimu, kwafunyaniswa ukuba ifilimu ayizange ifudumale kwaphela, kwaye yaziva ibanda. Ukujonga kwimimiselo yeparameter yeyunithi ye-roller edibeneyo, iqondo lokushisa elidibeneyo liyi-50 ° C kunye noxinzelelo oludibeneyo yi-0.3MPa. Emva kweUkushisa kwe-laminating roller kuphakanyiswe kwi-70 ° C kwaye uxinzelelo lwe-laminating luphakanyiswe kwi-0.4Mpa, amandla okubambisana okuqala aphuculwe kakhulu, kunye nokubonakala okudibeneyo kwaphuculwa.
Umthengi wafumanisa engaqhelekanga: parameters ezimbini laminating rola lobushushu 50 ℃ kunye noxinzelelo laminating 0.3Mpa ziye zasetyenziswa ngaphambili, kwaye akukho meko enjalo kwenzekile. Kutheni kufuneka senze utshintsho ngoku?
Masiqale ngokuhlalutya uxinzelelo oludibeneyo: Ngexesha lenkqubo yokucoca eyomileyo, uxinzelelo oludibeneyo kwiphepha lenkqubo yomenzi ngamnye kunye nomatshini wokucoca owomileyo ubonakaliswe kwi-bar okanye i-MPa, ngokubanzi i-3bar okanye i-0.3 ~ 0.6MPa. Eli xabiso ngokwenene lifana noxinzelelo lwe-cylinder exhunywe kwi-rubber roller. Enyanisweni, uxinzelelo oludibeneyo kufuneka lube luxinzelelo kwizinto ezicinezelekileyo phakathi kwe-composite pressure roller kunye ne-roller yensimbi edibeneyo. Eli xabiso loxinzelelo kufuneka libe yi-kgf / m okanye kgf / cm, oko kukuthi, uxinzelelo kubude beyunithi. Oko kukuthi, F = 2K * P * S / L (K yi-coefficient yokulinganisa, ehambelana nendlela yoxinzelelo lwe-cylinder. Uhlobo oluchanekileyo loxinzelelo lwe-1, kwaye uhlobo lwe-lever lukhulu kune-1, ehambelana nomlinganiselo yengalo yamandla ye-lever kunye nengalo yokumelana ne-P yi-cylinder ye-cylinder; Ngenxa yokuba ubukhulu be-cylinder oomatshini abahlukeneyo bahluke kwaye iindlela zokusetyenziswa kwengcinezelo ziyahluka, xa ixabiso eliboniswe kwii-gauges zoxinzelelo lwamashishini ahlukeneyo afanayo, iingcinezelo zangempela azifani.
Makhe sijonge ukushisa kwe-lamination: Kwi-lamination eyomileyo, emva kokuba i-adhesive iphuma kwi-tunnel yokomisa, i-solvent iye yaphuma ngumphunga, ishiya kuphela iglue eyomileyo. Oku kungenxa yokuba i-adhesive eyomileyo yokusetyenziswa kwakhona kwe-polyurethane iya kulahlekelwa yi-viscosity yayo kubushushu begumbi emva kokoma.Ukuze i-substrates ezimbini zihlangane kakuhle, i-adhesive kufuneka isebenze ukunamathela kwayo. Ngoko ke, xa i-laminating, i-roller e-laminating kufuneka itshiswe ukwenzela ukuba ukushisa kwayo kumphezulu kunokubangela ukuba i-adhesive ivelise i-viscosity esebenzayo.
Emva kokungena ngoNovemba, ubushushu behla kakhulu kwezinye iindawo. Ekupheleni kukaNovemba, iqondo lobushushu kwezinye iindawo lalimalunga ne-10°C kuphela. Xa abathengi behlanganisa i-RCPP, izinto ezikrwada zitsalwa ngokuthe ngqo kwindawo yokugcina impahla ukuya kwindawo yokusebenzela yokuvelisa. Ngeli xesha, ubushushu be-RCPP buphantsi kakhulu. Ngokudibanisa nokushisa okuphantsi kwe-lamination, ifilimu ifudumala ixesha elifutshane ngexesha lokutshatyalaliswa, kwaye iqondo lokushisa elipheleleyo lefilimu edibeneyo liphantsi kakhulu. Ubunzima be-molecular ye-high-temperature yokupheka iglue inkulu kwaye idinga ukufudumeza ukuvuselela umsebenzi wokunamathela. Ukuba iqondo lokushisa liphantsi kakhulu, amandla okubambisana okuqala aya kuncitshiswa kakhulu. Emva kokufakwa kwigumbi lokunyanga, umsebenzi we-adhesive uyakhuthazwa kwaye amandla anokwandiswa ngokukhawuleza.
Ngoko ke, xa sinyusa ubushushu obudibeneyo kunye noxinzelelo oludibeneyo, le ngxaki yasonjululwa.
Enye ingxaki enokuthi ihlangabezane nayo xa ubushushu befilimu busezantsi kukuba umahluko wobushushu phakathi kwangaphakathi nangaphandle kwendawo yokusebenzela mkhulu ngokwentelekiso, kwaye iworkshop yokushicilela iyafumisa, xa ifilimu ivuliwe, umphunga wamanzi uyajiya, kunye nomphezulu. yefilimu iya kuba nemvakalelo efumileyo, eya kuchaphazela ukubonakala kwemveliso emva kokuguga. nobunzulu bubangela iingozi ezinkulu ezifihlakeleyo. Ukongezelela, ngenxa yomgangatho ophantsi obangelwa ukushisa okuphantsi xa i-adhesive isetyenzisiwe, iingxaki zembonakalo edibeneyo nazo zenzeka ngamaxesha.
Amanyathelo othintelo:Ebusika, izinto eziluhlaza kunye ne-adhesives kufuneka zifakwe kwi-workshop yokuvelisa iiyure ezingama-24 kwangaphambili kangangoko kunokwenzeka. Abathengi abaneemeko banokwakha i-pre-greenhouse. Ukwandisa ngokufanelekileyo iqondo lokushisa kunye noxinzelelo lwe-roller lamination ukuqinisekisa ukuba ifilimu "ifudumele" emva kwe-lamination kunye ne-winding.
02 Ibhegi ye-retort iqinile kwaye iyaphuka
Ngokufika kobusika, iingxowa ezibilisiwe ze-NY / PE kunye ne-NY / CPP i-retort bags iba nzima kwaye i-brittle. Ingxaki ebangelwa kukuba i-bag breakage rate iyanda. Oku kube yingxaki ekudala ikho kulo lonke ishishini. Uninzi lwamaShishini okupakisha amakhulu nawo ayakhathazwa yile ngxaki kwaye ajonge izisombululo.
Iingxowa ze-NY/CPP ezixhathisa ubushushu obuphezulu zibhekisa kwiingxowa ezihlanganisiweyo ezinokuvalwa iintsholongwane kwi-121°C ngaphezu kwemizuzu engama-30. Olu hlobo lokupakisha lunokucaca kakuhle, amandla aphezulu, kwaye lusetyenziswa ngokubanzi. Iingxowa ze-NY/PE zihlala zisetyenziselwa ukubilisa kunye neengxowa zokufunxa ngenxa yamandla azo aphezulu kunye nokuqina okuhle.Nangona kunjalo, olu hlobo lweengxowa zokupakisha kunye ne-olefin njengoko umgca wokutywina wangaphakathi uhlala ujongene neengxaki ezimbini ezinkulu: okokuqala, ebusika obubandayo obubandayo, i-brittleness yesikhwama iyanda, kwaye i-bag breakage rate iyanda; okwesibini, emva kokupheka okanye ukubilisa, isikhwama siba nzima kwaye i-brittleness iyanda.
Ngokubanzi, i-inner layer ye-high-temperature retort bags ubukhulu becala yi-RCPP. Olona ncedo lukhulu lwe-RCPP kukuba lucace kakuhle kwaye luyakwazi ukumelana nobushushu obuphezulu bokuvala inzala ngaphezulu kwe-121°C. Ukungalungi kukuba ilukhuni kwaye i-brittle kunezinye izinto zokutywinwa kobushushu. Oku kuyinyani ngakumbi kwiindawo zobushushu obuphantsi.I-RCPP yahlulwe yasekhaya kwaye ithunyelwa ngaphandle. Kuyaqondwa ukuba iimveliso zasekhaya zixhomekeke ikakhulu kwi-homopolymerized, kwaye ngokuqinisekileyo ezinye iinkampani zibandakanyeka kuhlengahlengiso lwe-RCPP. I-RCPP ethunyelwa ngaphandle ikakhulu isekelwe kwibhloko, kwaye ukumelana nobushushu obuphezulu be-homopolymer kubi kakhulu kunoko kwebhloko. I-Homopolymer RCPP iya kwenziwa i-denatured emva kokuvala inzala yobushushu obuphezulu, oko kukuthi, i-RCPP iya kuba nzima kwaye ibe brittle, ngelixa ibhloko ye-RCPP isenokugcinwa ngaphambi kokuvalwa inzala. yokuthamba.
Okwangoku, iJapan iphambili kuphando lwehlabathi malunga neepololefins. Iipololefin zaseJapan nazo zithunyelwa kwihlabathi liphela. Ubuthambileyo kunye nokusebenza ngokubanzi kwefilimu ye-NY / PE kunye nefilimu yokupheka kwe-RCPP ephezulu yokushisa ihle kakhulu.
Ngoko ke, mna ndikholelwa ukuba izinto ze-polyolefin zidlala indima ebalulekileyo kwingxaki yobunzima kunye nokuqina kweengxowa ezibilisiwe ze-NY / PE kunye ne-NY / CPP i-retort bags ebusika. Ukongezelela, ukongeza kwimpembelelo yezixhobo ze-polyolefin, ii-inki kunye ne-adhesives edibeneyo zinefuthe elithile, kwaye kufuneka zilungelelaniswe ukuze ekugqibeleni zivelise izikhwama eziphekiweyo eziphekiweyo eziphezulu kunye nokushisa okuphezulu.
Ubusika bunemiphumo emininzi kwi-extrusion lamination, phakathi kwayo ukulungiswa kwe-gap yomoya kubaluleke kakhulu, kwaye wonke umntu kufuneka anikele ingqalelo kuyo.
Ixesha lokuposa: Dec-09-2023
