Ubuhanga bwo gucapa UV n'ibiranga

Muri rusange, gucapa UV bikubiyemo ibyiciro bikurikira by'ikoranabuhanga:

1. Ibikoresho bitanga urumuri rwa UV

Ibi birimo amatara, utugarura-rumuri, sisitemu zo kugenzura ingufu, na sisitemu zo kugenzura ubushyuhe (gukonjesha).

(1) Amatara

Amatara ya UV akoreshwa cyane ni amatara ya mercure vapor, arimo mercure imbere mu muyoboro. Hari ubwo hongerwamo ibindi byuma nka gallium kugira ngo bihindure spectral output.

Amatara ya metal-halide n'amatara ya quartz nabyo bikoreshwa cyane, kandi menshi aracyatumizwa mu mahanga.

Urugendo rw'uburebure bw'amatara akoresha imirasire ya UV rugomba kuba ruri hagati ya nanometero 200–400 kugira ngo rugire akamaro mu kuvura.

(2) Utugarurarumuri

Inshingano nyamukuru y'icyuma gisubiza urumuri ni ukongera imirasire ya UV igana ku gice cy'ubutaka kugira ngo byongere ubushobozi bwo gutwika (UV Tech Publications, 1991). Indi nshingano ikomeye ni ugufasha kubungabunga ubushyuhe bukwiye bw'itara.

Utugarurarumuri dusanzwe dukozwe muri aluminiyumu, kandi uturerekarumuri dusanzwe dusabwa kugera kuri 90%.

Hari imiterere ibiri y'ibanze ya reflector: focused (elliptical) na non-focused (parabolic), hamwe n'izindi tandukaniro zakozwe n'abakora.

(3) Sisitemu zo Kugenzura Ingufu

Izi sisitemu zemeza ko umusaruro wa UV ukomeza kuba mwiza, zigakomeza gukora neza no guhindagurika mu gihe zihuza n'umuvuduko utandukanye wo gucapa. Sisitemu zimwe zigenzurwa n'ikoranabuhanga, izindi zikoresha uburyo bwo kugenzura mudasobwa nto.

 

2. Sisitemu zo gukonjesha

Kubera ko amatara ya UV adasohora gusa imirasire ya UV ahubwo anatanga ubushyuhe bwa infrared (IR), ibikoresho bikora ku bushyuhe bwinshi (urugero, ubushyuhe bwo hejuru bw'amatara ashingiye kuri quartz bushobora kugera kuri dogere selisiyusi amagana).

Ubushyuhe bukabije bushobora kugabanya igihe cyo kumara ibikoresho kandi bushobora gutuma substrate yaguka cyangwa igahinduka, bigatera amakosa yo kwiyandikisha mu gihe cyo gucapa. Kubwibyo, sisitemu zo gukonjesha ni ingenzi cyane.

 

3. Sisitemu yo gutanga wino

Ugereranyije n'iwino zisanzwe zikoreshwa mu gusimbuza, iwino za UV zifite ubukana bwinshi n'ubushyuhe bwinshi, kandi zishobora kwangiza ibice by'imashini nk'ibiringiti n'imizingo.

Bityo rero, mu gihe cyo gucapa, wino iri mu isoko igomba guhora ihindagurika, kandi imigozi n'ibiringiti biri muri sisitemu ya wino bigomba kuba ibikoresho byagenewe gucapa UV.

Kugira ngo wino ikomeze kuba nziza kandi hirindwe impinduka mu bushyuhe, sisitemu zo kugenzura ubushyuhe bw'amapine nazo ni ingenzi.

 

4. Uburyo bwo gusohora ubushyuhe n'ibyuka bisohora umwuka

Izi sisitemu zikuraho ubushyuhe burenze urugero na ozone biva mu gihe cyo gupima no gukaraba wino.

Ubusanzwe zigizwe na moteri isohora umwuka n'uburyo bwo gukurura imiyoboro y'amazi.

[Gukora ozone bifitanye isano ahanini n'uburebure bw'imiraba ya UV buri munsi ya ~240 nm; sisitemu nyinshi zigezweho zigabanya ozone binyuze mu kuyungurura cyangwa amasoko ya LED.]

 

5. Inki zo gucapa

Ubwiza bwa wino ni ikintu cy'ingenzi cyane bigira ingaruka ku musaruro w'icapiro rya UV. Uretse kugira ingaruka ku ikorwa ry'amabara n'uburyo akoreshwa mu gucapa, ubushobozi bwo gucapa wino bugena neza uburyo ifata, imbaraga, no kudashwanyagurika kw'icapiro rya nyuma.

Imiterere ya fotoinitiators na monomers ni ingenzi mu mikorere.

Kugira ngo wino ya UV ifatanye neza, iyo wino ya UV itose ikoze kuri substrate, imbaraga z'ubuso bw'inyuma (dynes/cm) zigomba kuba zirenze iz'inyuma y'iwino (Schilstra, 1997). Kubwibyo, kugenzura imbaraga z'ubuso bw'iwino na substrate ni ikoranabuhanga ry'ingenzi mu gucapa UV.

 

6. Ibikoresho byo gupima ingufu za UV

Kubera ko ibintu nko gusaza kw'amatara, ihindagurika ry'ingufu, n'impinduka mu muvuduko wo gucapa bishobora kugira ingaruka ku gushya, ni ngombwa kugenzura no kubungabunga ingufu za UV zihoraho. Bityo, ikoranabuhanga ryo gupima ingufu za UV rigira uruhare runini mu gucapa UV.