Ukuthola imiphumela emihle yokuphulukisa, izici eziningana ezidinga ukubhekwa, kufaka phakathi:
1. Ifomu lekamelo lokulapha kanye nesimo esifanelekile: isivinini nenani lomoya oshisayo kusuka kudivayisi yokufudumeza nasemhubheni; umhlabathi nezinhlangothi ezimbili noma eziningana zegumbi lokulashwa kunomoya owenele nowokushisa oshisayo; Umehluko omncane phakathi kokushisa okungokoqobo nokusetha, kanye nokulondolozwa kokushisa kanye nokuphuma kwemfucuza kuhlangabezana nezicelo; Ama-rolls wefilimu kulula ukuhambisa futhi athathe.
2. Imikhiqizo ihlangabezana nezicelo zobuchwepheshe.
3. Imisebenzi, inani le-corona, ukumelana nokushisa, njll.
4. Adshesives: Solvent Adhesive, Sollent Adhesive, eyodwa noma i-Complent Complent Water Base Adhesive, i-Hot Melt Adhesive, njll.
Leli phepha ikakhulukazi ligxile kumafilimu nama-adhesives.
1. Amafilimu amaLamination
Ukumelana ngokomzimba, ukumelana nokushisa nokusebenza kwesithiyo sefilimu ye-PE, esetshenziswa kabanzi, kuzoba ngcono, lapho ubuningi be-PE bukhuphuka. Amafilimu anobunzima obufanayo kepha izinqubo ezihlukile zokukhiqiza zinokusebenza okuhlukile.
I-CPE ingaphola ngokushesha, nge-crystaltaltity ephansi, ukucaca okuphezulu kanye nokuthambisa okuphansi. Kodwa ukuhlelwa kwamangqamuzana akunamqondo, okwenza kube ukusebenza okubi okubaphethe okubi, okudluliselwa kakhulu. Futhi kuyafana ne-LDPE. Ngakho-ke, izinga lokushisa lelapha akufanele libe liphezulu kakhulu lapho usebenzisa amafilimu we-PE. Lapho ukumelana nokushisa kwe-PE kuwukuthuthuka, izinga lokushisa lelapha lingaba ngaphezulu.
2. Adshesives
2.1 ethylUkunamathela esekwe
Ngokwemicimbi yamafilimu amaLamination kanye nama-adhesives, izimo zokwelapha zingahlukaniswa ngamazinga ahlukile:
1. Ukushisa 35℃, isikhathi 24-48h
2. Ukushisa 35-40℃, isikhathi 24-48h
3. Ukushisa 42-45℃, isikhathi 48-72h
4. Ukushisa 45-55℃, isikhathi 48-96h
5. Okukhethekile, izinga lokushisa ngaphezulu kwe-100℃, isikhathi ngokuya ngokusekelwa kwezobuchwepheshe.
Ngemikhiqizo ejwayelekile, ucubungula ubuningi, ubukhulu, i-anti-block, ukusebenza kokuvikelwa kokushisa kwamafilimu kanye nosayizi wezikhwama, izinga lokuphumula akufanele liphezulu kakhulu. Imvamisa, 42-45℃noma ngezansi kwanele, isikhathi 48-72 amahora.
Amafilimu angaphandle ama-lamination, adinga ukusebenza okuphezulu futhi ukumelana nokushisa okuhle kulungele ukwelashwa okushisa okuphezulu, njengokungaphezulu kwama-50℃. Amafilimu angaphakathi, njenge-PPP ye-PE noma yokushisa℃, isikhathi sokwelapha kungenzeka sibe side.
Imikhiqizo ebilayo noma ye-requrtart, edinga ukusebenza okuphezulu kanye nokumelana okuphezulu okuphezulu, kufanele kuvumelwe izimo zelapha ifektri enikezela ngazo.
Isikhathi sokwelapha kufanele sikwazi ukuvumelanisa isilinganiso sokuqedwa kwendlela, ukungqubuzana nokushisa kokushisa kokushisa.
Imikhiqizo ekhethekile ingadinga izinga lokuphumula eliphakeme.
2.2 SOLLENTNO SMESIVE
Uma ukusebenza kokubekwa uphawu kuhlangabezana nesidingo, ngemikhiqizo ye-sollent lamianing, lapho amafilimu angaphakathi anobunzima obuphansi, ama-adhesives anama-monomers amaningi wamahhala, okwenza kube nzima ukubeka uphawu. Ngakho-ke, kunconywa ukwelashwa okuphansi okuphansi, ku-38-40℃.
Uma izinga lokuqedwa kokuphendula lihlangabezana nesidingo, kufanele kubhekwe isikhathi eside sokuphumula.
Uma amafilimu okushisa okushisa anobukhulu obuphezulu, izinga lokushisa lelapha kufanele libe ngu-40-45℃. Uma isilinganiso sokuqedelwa kokuphendula kanye nokushisa kokushisa kudinga ukuthuthuka, isikhathi sokwelapha kufanele kube yinde.
Ukuhlolwa ngokuqinile kumele kube ngaphambi kokukhiqizwa kwesisindo, ukuqinisekisa ikhwalithi.
Ngaphezu kwalokho, umswakama kufanele ubhekwe. Ikakhulu ebusika obomile, umswakama ofanele ungasheshisa izilinganiso zokuphendula.
2.3 Izikhangiso ezisuselwa emanzini
Lapho i-laminiating vmcpp, umshini wokushisa kufanele womile ngokwanele, noma ungqimba oluhlanganisiwe luzobe luhlaka. Ngesikhathi sokwelapha, izinga lokushisa akufanele libe liphezulu kakhulu noma liphansi kakhulu. Ukushisa okuphezulu kuzoholela ekunciphiseni okuphezulu kokungqubuzana.
2.4 Hot Melt Adhesive
Imvamisa khetha ukwelashwa kwemvelo, kepha ukusebenza kokunamathela ngemuva kokuncibilika kufanele kuqashelwe.
3. Lawula ngokuqinile lokushisa lokuvuka
Ngokuya kocwaningo, esicini sokuphendula, cishe asisekho ukusabela ngaphansi kwama-30℃. Ngaphezulu kwama-30℃, njalo 10℃Phezulu, isilinganiso sokuphendula sithuthukisa cishe amahlandla ama-4. Kodwaayilungile ukuthuthukisa izinga lokushisa ukusheshisa isilinganiso sokuphendula, izici eziningana kufanele zibonakale:Izinga langempela lokuphendula, amandla okubhidliza kanye nokushisa kwamandla kokushisa.
Ukufeza umphumela omuhle kakhulu welapha, izinga lokuphumula le-pering kufanele lihlukaniswe ngezici ezahlukahlukene, ngokuya ngamafilimu we-lamination nezakhiwo.
Okwamanje, izinkinga ezijwayelekile zinjengengezansi:
Okokuqala, izinga lokuphumula le-pering liphansi kakhulu, okwenza isilinganiso sokuphendula esiphansi, futhi umkhiqizo unezinkinga ngemuva kokuvalwa okushisayo noma okubilisiwe.
Amazinga okushisa amabili, amafilimu aphezulu kakhulu futhi ashisayo anobunzima obuphansi. Umkhiqizo unokusebenza okubi okushisayo okushisayo, ukungqubuzana okuphezulu okuphezulu nemiphumela emibi yokulwa nebhlokhi.
4. Isiphetho
Ukufinyelela umphumela omuhle kakhulu wokulashwa, izinga lokuphumula kanye nesikhathi kufanele kunqunywe ngokushisa kwemvelo kanye nomswakama, ukusebenza kwamafilimu nokusebenza okunamathela.
Isikhathi sePosi: APR-22-2021