Mekhoa le Litšobotsi tsa Khatiso ea UV

Ka kakaretso, khatiso ea UV e kenyelletsa mefuta e latelang ea mahlale a theknoloji:

1. Lisebelisoa tsa Mohloli oa Leseli la UV

Sena se kenyeletsa mabone, dibontsha-kganya, ditsamaiso tsa taolo ya eneji, le ditsamaiso tsa taolo ya mocheso (ho phodisa).

(1) Mabone

Mabone a UV a sebelisoang haholo ke mabone a mouoane a mercury, a nang le mercury ka har'a tube. Maemong a mang, litšepe tse ling tse kang gallium lia eketsoa ho lokisa tlhahiso ea spectral.

Mabone a tšepe-halide le mabone a quartz le ona a sebelisoa haholo, 'me a mangata a ntse a rekoa linaheng tse ling.

Lebelo la maqhubu a hlahisoang ke mabone a khantšang mahlaseli a UV le lokela ho ba pakeng tsa 200–400 nm hore le sebetse hantle bakeng sa khantša.

(2) Libontšiso

Mosebetsi o ka sehloohong oa seipone ke ho khutlisetsa mahlaseli a UV morao ho substrate ho eketsa katleho ea ho folisa (UV Tech Publications, 1991). Karolo e 'ngoe ea bohlokoa ke ho thusa ho boloka mocheso o loketseng oa ts'ebetso ea lebone.

Hangata di-reflector di etswa ka aluminium, mme reflection hangata e hlokahala ho fihla ho 90%.

Ho na le meralo e 'meli ea motheo ea reflector: e shebaneng (elliptical) le e sa shebaneng (parabolic), ka mefuta e meng e ntlafalitsoeng ke bahlahisi.

(3) Mekhoa ea Taolo ea Matla

Litsamaiso tsena li netefatsa hore tlhahiso ea UV e lula e tsitsitse, e boloka bokhoni ba ho fola le botsitso ha e ntse e ikamahanya le lebelo le fapaneng la khatiso. Litsamaiso tse ling li laoloa ka elektroniki, ha tse ling li sebelisa taolo ea microcomputer.

 

2. Mekhoa ea ho Pholisa

Kaha mabone a UV ha a ntše mahlaseli a UV feela empa hape a ntša mocheso oa infrared (IR), lisebelisoa li sebetsa maemong a phahameng a mocheso (mohlala, mocheso oa holim'a mabone a thehiloeng ho quartz o ka fihla ho likhato tse makholo a 'maloa tsa Celsius).

Mocheso o feteletseng o ka khutsufatsa bophelo ba lisebelisoa 'me o ka baka katoloso kapa phetoho ea substrate, e leng se lebisang liphosong tsa ngoliso nakong ea khatiso. Ka hona, litsamaiso tsa ho pholisa li bohlokoa haholo.

 

3. Sistimi ea Phepelo ea Enke

Ha ho bapisoa le enke e tloaelehileng ea offset, enke ea UV e na le viscosity e phahameng le khohlano e kholo, 'me e ka baka ho tsofala ha likarolo tsa mochini tse kang likobo le lirolara.

Ka hona, nakong ea khatiso, enke e ka har'a seliba e lokela ho sisinngoa khafetsa, 'me lirolara le likobo tse tsamaisong ea enke e lokela ho ba thepa e etselitsoeng khatiso ea UV ka ho khetheha.

Ho boloka botsitso ba enke le ho thibela liphetoho tsa viscosity tse amanang le mocheso, litsamaiso tsa taolo ea mocheso oa roller le tsona lia bohlokoa.

 

4. Mekhoa ea ho Hala Mocheso le ho Futhumatsa Mosi

Mekhoa ena e tlosa mocheso o feteletseng le ozone e hlahisoang nakong ea polymerization ea enke le ho e lokisa.

Hangata li na le enjene ea ho ntša mosi le sistimi ea ho tsamaisa mosi.

[Ho hlahisoa ha ozone ho amahanngoa haholo le maqhubu a UV a ka tlase ho ~240 nm; litsamaiso tse ngata tsa sejoale-joale li fokotsa ozone ka mehloli e sefiloeng kapa ea LED.]

 

5. Enke ea ho Hatisa

Boleng ba enke ke ntlha ea bohlokoa ka ho fetisisa e amang liphetho tsa khatiso ea UV. Ntle le ho susumetsa tlhahiso ea mebala le mefuta e fapaneng, ho printa ha enke ho khetholla ka ho toba ho khomarela, matla le ho hanyetsa ho khopama ha khatiso ea ho qetela.

Thepa ea li-photoinitiator le li-monomers ke ea bohlokoa bakeng sa ts'ebetso.

Ho netefatsa hore enke ea UV e metsi e khomarela substrate, khatello ea bokaholimo ba substrate (dynes/cm) e tlameha ho ba holimo ho feta ea enke (Schilstra, 1997). Ka hona, ho laola khatello ea bokaholimo ba enke le substrate ke theknoloji ea bohlokoa khatisong ea UV.

 

6. Lisebelisoa tsa ho Lekanya Matla a UV

Hobane lintlha tse kang botsofali ba mabone, ho feto-fetoha ha matla, le liphetoho tsa lebelo la khatiso li ka ama ho fola, ho bohlokoa ho beha leihlo le ho boloka tlhahiso e tsitsitseng ea matla a UV. Kahoo, theknoloji ea ho lekanya matla a UV e bapala karolo ea bohlokoa khatisong ea UV.