1. Evaporation rate inozoshanda pane evaporated coating
The evaporation rate ine simba guru pafirimu rakaiswa.Nekuda kwekuti iyo yekuputira chimiro inoumbwa neyakaderera deposition rate yakasununguka uye iri nyore kuburitsa hombe particle deposition, zvakachengeteka zvakanyanya kusarudza yakakwirira evaporation chiyero kuti ive nechokwadi chekubatana kweiyo yekuputira chimiro.Kana kudzvinyirirwa kwegasi rinosara muimba yekuputira kunoramba kuripo, bhombardment rate ye substrate inokosha nguva dzose.Naizvozvo, gasi rinosara riri mufirimu rakaiswa mushure mekusarudza yakakwira deposition rate richaderedzwa, nokudaro kuderedza kemikari kuita pakati peasara gasi mamorekuru uye evaporated film particles.Naizvozvo, kuchena kwefirimu rakaiswa kunogona kuvandudzwa.Izvo zvinofanirwa kucherechedzwa kuti kana deposition rate yakakurumidza, inogona kuwedzera kushushikana kwemukati kwemufirimu, ichawedzera kukanganisa mufirimu, uye kunyange kutungamirira kukuputika kwefirimu.Kunyanya, mukuita reactive evaporation plating, kuitira kuti reaction gasi riite zvizere nezvikamu zveevaporation film material, unogona kusarudza yakaderera deposition rate.Zvechokwadi, zvinhu zvakasiyana-siyana zvinosarudza mazinga akasiyana evaporation.Semuenzaniso unoshanda- kuisirwa kwefirimu rinoratidzira, Kana iyo firimu ukobvu iri 600 × 10-8cm uye nguva yekufefetedza iri 3s, iyo reflectivity i 93%.Nekudaro, kana chiyero chekubuda chikadzikiswa pasi pehukobvu hwakafanana, zvinotora maminetsi gumi kupedzisa kuisa firimu.Panguva ino, kukora kwefirimu kwakafanana.Nekudaro, iyo reflectivity yakaderera kusvika 68%.
2. Subtrate tembiricha ichaita pa evaporation coating
Iyo substrate tembiricha ine simba guru pane evaporation coating.Mamorekuru egasi akasara akavharirwa pane substrate pamusoro pakakwirira substrate tembiricha ari nyore kubviswa.Kunyanya kubviswa kwemamorekuru emhute yemvura kunonyanya kukosha.Uyezve, pakupisa kwepamusoro, hazvisi nyore chete kukurudzira shanduko kubva pakushambadza kwemuviri kuenda kumakemikari adsorption, nokudaro kuwedzera simba rinosunga pakati pezvikamu.Uyezve, inogona zvakare kuderedza mutsauko uripo pakati pekupisa tembiricha yehupfu mamorekuru uye tembiricha ye substrate, nokudaro kuderedza kana kubvisa kushushikana kwemukati pane iyo firimu-based interface.Uye zvakare, nekuti iyo substrate tembiricha inoenderana nekristaro mamiriro emufirimu, kazhinji zviri nyore kugadzira amorphous kana microcrystalline coatings pasi pemamiriro epasi substrate tembiricha kana pasina kupisa.Pane zvinopesana, kana kutonhora kwakakwirira, zviri nyore kuumba crystalline coating.Kuwedzera iyo substrate tembiricha inobatsirawo pakuvandudza ma mechanic properties yejasi.Ehe, iyo substrate tembiricha haifanirwe kunge yakakwira zvakanyanya kudzivirira evaporation yejasi.
3. Residual gasi pressure muvacuum chamber ichaita pane firimu zvinhu
Kudzvinyirirwa kwegasi rinosara muimba yevacuum kune simba guru pakushanda kwe membrane.Mamolekemu egasi akasara ane dzvinyiriro yakawandisa haisi nyore chete kudhumhana nezvikamu zvinoputika, izvo zvinoderedza simba rekinetic revanhu pa substrate uye kukanganisa kunamatira kwefirimu.Uye zvakare, yakawandisa yakasara gasi kudzvanywa kuchakanganisa zvakanyanya kuchena kwefirimu uye kuderedza kushanda kwejasi.
4. Evaporation tembiricha kuitika pamusoro evaporation coating
Mhedzisiro yetembiricha yekudonha pakuita kwemembrane inoratidzwa neshanduko yehuwandu hwekubuda kwemhepo netembiricha.Kana tembiricha ye evaporation yakwira, kupisa kwe vaporization kunoderera.Kana iyo membrane zvinhu ikanyungudutswa pamusoro peiyo tembiricha yekubuda, kunyangwe kushanduka kushoma kwetembiricha kunogona kukonzera shanduko yakapinza muhuwandu hwekubuda kweiyo membrane zvinhu.Naizvozvo, zvakakosha kwazvo kudzora tembiricha yekubuda kwemvura nemazvo panguva yekuiswa kwefirimu kuti udzivise tembiricha yakakura kana iyo evaporation sosi ichipisa.Kune iyo firimu zvinhu zviri nyore kuita sublimate, zvakare zvakakosha kwazvo kusarudza iyo pachayo seyo hita yekubuda uye mamwe matanho.
5. Kuchenesa mamiriro e substrate uye coating chamber kuchaita pakubata basa
Mhedzisiro yehutsanana hwe substrate uye kamuri yekuputira pamusoro pekuita kwekuputira haigoni kuregererwa.Izvo hazvizongokanganisa zvakanyanya kuchena kwefirimu yakaiswa, asi zvakare kuderedza kunamatira kwefirimu.Naizvozvo, kucheneswa kweiyo substrate, kucheneswa kurapwa kwevacuum yekuputira kamuri uye nezvikamu zvayo zvine hukama (senge substrate furemu) uye degassing yepasi ndiwo ese anodiwa maitiro muvacuum coating process.
Nguva yekutumira: Feb-28-2023