Ukwenziwa kwefilimu yokugquma ipleyiti egqunywe ngombala ikakhulu ibandakanya ukuncamathela kokwambathisa kunye nokomisa ukomisa.
A Umbala coated ipleyiti yokuncamathelisa ukutyabeka
Isinyathelo sokuqala sokubambelela kwi-substrate ye-strip strip kunye nokugquma kukumanzisa kombala wepleyiti egqunywe ngombala kumphezulu we-substrate.I-coating yokumanzisa inokutshintsha umoya kunye namanzi adsorbed ekuqaleni kumphezulu we-steel strip substrate.Ngelo xesha, i-volatilization ye-solvent ebusweni be-substrate inefuthe lokuchithwa okanye ukuvuvukala.Ukuba iiparamitha zokunyibilika kwefilimu eyenza i-resin yombala ogqunywe ipleyiti yokwaleka kunye nomphezulu we-substrate zikhethwe ngokufanelekileyo, umaleko oxubeneyo uya kwenziwa phakathi komphezulu wombala otyatyekwe ipleyiti substrate kunye nefilimu yokwaleka, Oku kakhulu. kubalulekile ukunamathela kakuhle kwengubo.
B Ukomisa ipleyiti eqatywe ngombala
Ukwakhiwa kokuncamatheliswa kombala ogqunywe ipleyiti egqunywe ipleyiti igqibezela kuphela inyathelo lokuqala lokwakheka kwefilimu yokwaleka kwinkqubo yokugquma ipleyiti egqunywe ngombala, kwaye iyaqhubeka nenkqubo yokujika ibe yifilim eqinileyo eqhubekayo, enokugqiba yonke ifilimu yokwaleka. inkqubo.Le nkqubo ukusuka "kwifilimu emanzi" ukuya "kwifilimu eyomileyo" ngokuqhelekileyo ibizwa ngokuba "yomisa" okanye "ukunyanga".Le nkqubo yokomisa kunye nokunyanga iyona nto ingundoqo yenkqubo yokwenza ifilimu yokugqoka.Iifom ezahlukeneyo kunye nokubunjwa kweengubo zinendlela yazo yokwenza ifilimu, echongwa yimpahla yefilimu esetyenziswa kwiingubo.Ngokuqhelekileyo, sahlula ifilimu-ukwenziwa kweengubo kwiindidi ezimbini: eziqinileyo kunye nentsimi
(1) Ayitshintshanga.Ngokuqhelekileyo, ibhekisela kwindlela yokwenza ifilimu ebonakalayo, exhomekeke kakhulu ekutshintsheni kwe-solvent okanye enye i-dispersion media kwifilimu, kwaye i-viscosity yefilimu iyanda ngokuthe ngcembe ukwenza ifilimu eqinile.Umzekelo: ipeyinti ye-acrylic, ipeyinti yerabha ekloriniweyo, ipeyinti yevinyl, njl.
(2) Utshintsho.Ngokubanzi, ibhekisa kwimichiza eyenzeka ngexesha lenkqubo yokwenza ifilim, kwaye ukwenziwa kwefilimu yokwaleka kuxhomekeke ikakhulu kwimichiza.Olu hlobo lokwenziwa kwefilimu yinkqubo yezinto zokwenza ifilimu kwi-polymerizing ifilimu ebizwa ngokuba yi-polymer emva kokwakhiwa.Kunokuthiwa yindlela ekhethekileyo ye-polymer synthesis, elandela ngokupheleleyo indlela yokusabela ye-polymer synthesis.Umzekelo: i-alkyd yokugqoka, i-epoxy coating, i-polyurethane i-coating, i-phenolic coating, njl. Nangona kunjalo, ininzi yokugqoka yanamhlanje ayenzi iifilimu ngendlela enye, kodwa ithembele kwiindlela ezininzi zokwenza iifilimu.I-coil coil iyinto eqhelekileyo exhomekeke kwiindlela ezininzi zokwenza iifilimu.
Ixesha lokuposa: Feb-13-2023