Okwamanje kunezinhlobo ezimbili zezinamathelisi ezingenaso isinyibilikisi zezinto ezihlanganisiwe zokupakisha eziguquguqukayo, izingxenye ezilodwa nezimbili. Ingxenye eyodwa isetshenziswa kakhulu ephepheni nasezingalukiwe, ezingasetshenziswa ngaphandle kokuxuba nangaphandle kokulungisa isilinganiso. Izingxenye ezimbili zingasetshenziswa ezinhlobonhlobo zefilimu yokupakisha eguquguqukayo. Ngokusekelwe kokuhlangenwe nakho komuntu siqu, leli khasi lizochaza ukuthi ungashintsha kanjani isilinganiso sezingxenye ezimbili ngezinhloso ezahlukene nokuthi sisebenza kanjani.
Okokuqala, isimiso sokuxuba isilinganiso sama-binder angenazo izinyibilikisi aklanywe.
Kunezici ezintathu zokwakheka kwesilinganiso senhlanganisela ye-glue laminating engenaso i-solvent:
1. Zama ukufanisa isilinganiso sengxube yezingxenye ze-A kanye ne-B nesisindo.
Isilinganiso sokuxuba esihlangene se-A / B sinenzuzo yokuba nesisindo esifanayo. Isibonelo, i-X ingu-100A exutshwe ne-90B, i-Y ingu-100A kanye ne-50B. Ushintsho lwe-B oluyi-1% luzoholela ekushintsheni kwesisindo okungu-1.1% kwengxenye ye-A engu-X kanye no-2% we-Y. Ngokuvamile, ushintsho lwe-2% kwisilinganiso sokuxuba luyamukeleka ngesikhathi senqubo yokukhiqiza, okuholela ekushintsheni kwesisindo okungu-2.2% kanye no-4%. Uma isisindo sabo sihluka kakhulu, lokhu kungaholela ezimeni ezingavamile ezilandelayo:
(1) Izingxenye ze-A / B kunzima ukuzixuba kahle ukuze ingxube ibe manzi ngendlela engajwayelekile.
(2) Ngenxa yokungabikho kwengxenye B, ingcindezi yomxube iphansi kakhulu ukuqinisekisa ukugeleza okuvamile, okuholela ekuphambukeni kwezinamathelisi kanye nokwehla komkhiqizo.
2. Kuseduze ngangokunokwenzeka ne-viscosity yezingxenye ze-A & B
Uma i-viscosity yengxenye A no-B iphansi ekushiseni okufanele, kulapho umphumela wokuxuba ungcono khona. Uma ucabangela isenzo se-binder, i-viscosity yokuqala yezingxenye zombili ihluke kakhulu. Izinga lokushisa kufanele lilawulwe ngokwehlukana ukuze kulungiswe inani eliqinile. Ukwandisa izinga lokushisa lengxenye yokuqala nge-viscosity ephezulu kwenza kube seduze nenye ingxenye, futhi kuzuzisa kokubili idivayisi yokulinganisa yokuxuba kanye nephampu yokukhipha.
3. Ukwandisa ukubekezelelana kwengxube ye-A ne-B
Ngenxa yezici zangaphandle ekufakweni kwe-laminating, kumele kube nokuphambuka okuthile ekuxubeni isilinganiso. Ukwandisa ukubekezelelana kwesilinganiso sokuhlanganiswa kwe-A / B kungabuyisela ngempumelelo umphumela omubi walokhu kuphambuka. Isibonelo, i-adhesive evamile engenaso i-solvent WD8118A / B yezinto ezintsha isukela ekuxubeni okuvamile okungu-100: 75 kuya engxubeni engu-100: 60 - 85, zombili ezamukelekayo ukusetshenziswa futhi zamukelwa kahle amakhasimende amaningi.
Okwesibili, umgomo kanye nendlela yokulungisa isilinganiso sokuxuba
(1) Kulungiswe ukuze kuhambisane nokushisa okuzungezile kanye nomswakama
Ngokuvamile, okuqukethwe yi-NCO engxenyeni A kuphakeme, kuyilapho ukusabela komoya kanye nomhwamuko efilimini kungakwesobunxele. Kodwa-ke, phakathi nezinyanga zasehlobo, lapho kunomusi omningi emoyeni futhi ifilimu inokuqukethwe komswakama okuphezulu, ingxenye A kufanele ikhuliswe ukuze kudliwe umusi omningi, okuzokwenza kube lula ukusabela okufanele kweglue.
(2) Kulungiswe ngezinto zeyinki kanye nezinsalela ze-solvent
Ukupakisha okuguquguqukayo kakhulu ifilimu ephrintiwe, inqubo yokunyathelisa yasekhaya iwukunyathelisa nge-inki ye-solvent gravure. Ku-inki ezisekelwe ku-solvent njengesithasiselo kuzoba ne-diluent kanye ne-retarder, zombili ziyisistimu ye-polyurethane resin, ku-glue ene-NCO reaction ingadla i-NCO ethile.
Sikhathazekile ngobumsulwa kanye nokuqukethwe komswakama kwe-solvent esele. Izohlala cishe noma kancane ekunyathelisweni, futhi i-hydrogen esebenzayo esele izodla i-NCO ethile. Uma izinsalela ezincane nezinciphile ziphakeme, singangeza ingxenye A ukuze sithuthukise imiphumela.
(3) Kulungiswe ukuze kudluliselwe i-aluminium
Izinto eziningi zokupakisha eziguquguqukayo manje sezilungisiwe nge-aluminium, futhi umphumela wokucindezeleka embozweni ungancishiswa ngokulungisa isilinganiso sokuxuba sezingxenye ze-A / B ukuze zithambise, ngokuvamile kwandiswe ingxenye ye-B ngendlela efanele futhi kuncishiswe ukudluliselwa kwesimo se-aluminium ngokusebenzisa izinamathiselo zokuphazamiseka.
Isikhathi sokuthunyelwe: Ephreli-22-2021