Ukwakheka kwefilimu enamathelayo yepuleti ehlanganiswe ngombala ikakhulukazi kuhlanganisa ukunamathela kokunamathela kanye nokomisa okokunamathela.
Ukunamathela kwepuleti elihlanganiswe ngombala
Isinyathelo sokuqala sokunamathela kwe-substrate ye-steel strip kanye nokunameka ukumanziswa kwepuleti elinamekwe ngombala ebusweni be-substrate.Ukumanzisa okunamathelayo kungathatha indawo yomoya namanzi okwakukhangisiwe ekuqaleni kwe-substrate ye-steel strip.Ngesikhathi esifanayo, i-volatilization ye-solvent ebusweni be-substrate inomphumela wokuqedwa noma ukuvuvukala.Uma imingcele ye-solubility yefilimu eyenza i-resin yombala wepuleti ehlanganiswe nombala kanye nobuso be-substrate ikhethwe kahle, kuzokwakhiwa ungqimba oluxubekile phakathi kobuso be-substrate yepuleti elimbozwe ngombala kanye nefilimu yokugqoka, Lokhu kuhle kakhulu. kubalulekile ukunamathela okuhle kwe-coating.
B Ukomiswa kwepuleti elinamekwe ngombala
Ukwakhiwa kokunamathela kombala we-coated plate coating kuphela kuqeda isinyathelo sokuqala sokubunjwa kwefilimu yokugqoka enkambweni yokugqoka ipuleti elimbozwe ngombala, futhi liphinde liqhubeke nenqubo yokuphenduka ibe ifilimu eqhubekayo eqinile, engaqedela ukwakheka kwefilimu yokugcoba. inqubo.Le nqubo esuka "kwifilimu emanzi" kuya "kwifilimu eyomile" ngokuvamile ibizwa ngokuthi "ukoma" noma "ukwelapha".Le nqubo yokomisa nokuphulukisa iwumgogodla wenqubo yokwenza ifilimu yokuhlanganisa.Amafomu ahlukene kanye nokuqanjwa kwezingubo zokugqoka zinendlela yazo yokwenza ifilimu, enqunywa yizici zezinto ezenza ifilimu ezisetshenziselwa ukumboza.Ngokuvamile, sihlukanisa ukwakheka kwefilimu yezingubo zibe izigaba ezimbili: okuqinile kanye nensimu
(1) Ayiguquki.Ngokuvamile, kubhekiselwa endleleni yokwenza ifilimu ebonakalayo, encike kakhulu ekuguquguqukeni kwe-solvent noma enye imidiya yokuhlakazwa kwefilimu, futhi i-viscosity yefilimu ikhula kancane kancane ukuze yakhe ifilimu eqinile.Isibonelo: upende we-acrylic, upende werabha ohlotshisiwe, upende we-vinyl, njll.
(2) Uguquko.Ngokuvamile, kubhekiselwa ekuphenduleni kwamakhemikhali okwenzeka phakathi nenqubo yokwakhiwa kwefilimu, futhi ukwakheka kwefilimu kokunameka kuncike kakhulu ekuphenduleni kwamakhemikhali.Lolu hlobo lokwakhiwa kwefilimu luyinqubo yezinto zokwakha ifilimu ekuhlanganiseni i-polymerizing ifilimu ebizwa ngokuthi i-polymer ngemva kokwakhiwa.Kungashiwo ukuthi kuyindlela ekhethekile ye-polymer synthesis, elandela ngokuphelele indlela yokusabela ye-polymer synthesis.Isibonelo: i-alkyd coating, i-epoxy coating, i-polyurethane i-coating, i-phenolic coating, njll. Kodwa-ke, izigqoko eziningi zanamuhla azenzi amafilimu ngendlela eyodwa, kodwa zithembele ezindleleni eziningi zokwenza amafilimu.I-coil coil iyinto evamile ethembele ezindleleni eziningi zokwenza amafilimu.
Isikhathi sokuthumela: Feb-13-2023