Ukadaulo Wochiritsa UV

1. Kodi Ukadaulo Wochiritsa UV ndi Chiyani?

Ukadaulo Wochiritsa UV ndi ukadaulo wothira kapena kuumitsa nthawi yomweyo m'masekondi ochepa pomwe ultraviolet imagwiritsidwa ntchito pa utomoni monga zokutira, zomatira, inki yolembera ndi zotsutsa kuwala, ndi zina zotero, kuti ipangitse kuwala kwa kuwala. Ndi njira zochitira kuwala kwa kuwala powumitsa kutentha kapena kusakaniza zakumwa ziwiri, nthawi zambiri zimatenga masekondi angapo mpaka maola angapo kuti utomoni uume.

Zaka pafupifupi 40 zapitazo, ukadaulo uwu unayamba kugwiritsidwa ntchito poumitsa makina osindikizira pa plywood kuti azigwiritsidwa ntchito popanga zipangizo zomangira. Kuyambira pamenepo, wakhala ukugwiritsidwa ntchito m'magawo enaake.

Posachedwapa, ntchito ya utomoni wochiritsika wa UV yakula kwambiri. Kuphatikiza apo, mitundu yosiyanasiyana ya utomoni wochiritsika wa UV ikupezeka tsopano ndipo kugwiritsidwa ntchito kwawo komanso msika kukukula mofulumira, chifukwa ndi kopindulitsa pankhani yosunga mphamvu/malo, kuchepetsa zinyalala, komanso kumapangitsa kuti pakhale zokolola zambiri komanso kutentha kochepa.

Kuphatikiza apo, UV ndi yoyeneranso kupanga zinthu zowala chifukwa imakhala ndi mphamvu zambiri ndipo imatha kuyang'ana kwambiri pa mainchesi ochepa a malo, zomwe zimathandiza kupeza mosavuta zinthu zowumbidwa bwino kwambiri.

Mwachidule, popeza ndi chinthu chosasungunula, utomoni wochiritsika wa UV ulibe zosungunulira zachilengedwe zomwe zimayambitsa mavuto (monga kuipitsa mpweya) pa chilengedwe. Komanso, popeza mphamvu yofunikira pakuzimitsa ndi yochepa ndipo mpweya wa carbon dioxide ndi wochepa, ukadaulo uwu umachepetsa mavuto pa chilengedwe.

2. Makhalidwe a UV Curiation

1. Kuchiritsa kumachitika mumasekondi

Mu njira yochiritsira, monomer (Liquid) imasintha kukhala polymer (Solid) mkati mwa masekondi ochepa.

2. Kusamalira bwino chilengedwe

Popeza zinthu zonse zimachiritsidwa ndi photopolymerization yopanda zosungunulira, ndizothandiza kwambiri kukwaniritsa zofunikira za malamulo ndi maoda okhudzana ndi chilengedwe monga PRTR (Pollutant Release and Transfer Register) Law kapena ISO 14000.

3. Yabwino kwambiri pa ntchito yodzipangira yokha

Zinthu zochiritsira za UV sizichira pokhapokha ngati zili ndi kuwala, ndipo mosiyana ndi zinthu zochiritsira kutentha, sizichira pang'onopang'ono panthawi yosungidwa. Chifukwa chake, nthawi yake yogwira ntchito m'mbale ndi yochepa mokwanira kuti igwiritsidwe ntchito pochita zinthu zokha.

4. Chithandizo chotentha kwambiri n'chotheka

Popeza nthawi yokonza ndi yochepa, n'zotheka kuwongolera kukwera kwa kutentha kwa chinthu chomwe mukufuna. Ichi ndi chimodzi mwa zifukwa zomwe chimagwiritsidwa ntchito m'magetsi ambiri omwe amakhudzidwa ndi kutentha.

5. Yoyenera mtundu uliwonse wa ntchito popeza pali zipangizo zosiyanasiyana

Zipangizozi zimakhala ndi kuuma kwambiri komanso kuwala kwambiri. Komanso, zimapezeka mumitundu yosiyanasiyana, motero zingagwiritsidwe ntchito pazinthu zosiyanasiyana.

3. Mfundo ya Ukadaulo Wochiritsa UV

Njira yosinthira monomer (madzimadzi) kukhala polima (yolimba) mothandizidwa ndi UV imatchedwa UV Curing E ndipo zinthu zachilengedwe zopangidwa kuti zichiritsidwe zimatchedwa UV Curable Resin E.

UV Curable Resin ndi mankhwala omwe ali ndi:

(a) monomer, (b) oligomer, (c) choyambitsa photopolymerization ndi (d) zowonjezera zosiyanasiyana (zokhazikika, zodzaza, utoto, ndi zina zotero).

(a) Monomer ndi zinthu zachilengedwe zomwe zimapangidwa ndi polymer ndikusinthidwa kukhala mamolekyu akuluakulu a polymer kuti apange pulasitiki. (b) Oligomer ndi zinthu zomwe zakhala zikuchitapo kanthu kale ku ma monomer. Mofanana ndi monomer, oligomer imapangidwanso ndi polymer ndikusinthidwa kukhala mamolekyu akuluakulu kuti apange pulasitiki. Monomer kapena oligomer sizipanga mosavuta polymerization reaction, motero zimaphatikizidwa ndi photopolymerization initiator kuti ziyambe reaction. (c) Photopolymerization initiator imakondwera ndi kuyamwa kwa kuwala ndipo pamene reactions, monga zotsatirazi, zimachitika:

(b) (1) Kugawanika kwa magetsi, (2) Kuchotsa kwa haidrojeni, ndi (3) Kusamutsa ma elekitironi.

(c) Ndi izi, zinthu monga ma radical molecule, hydrogen ion, ndi zina zotero, zomwe zimayambitsa izi zimapangidwa. Ma radical molecule, hydrogen ion, ndi zina zotero, amaukira oligomer kapena ma monomer molecule, ndipo polymerization kapena crosslinking reaction ya magawo atatu imachitika. Chifukwa cha izi, ngati ma molekyulu omwe ali ndi kukula kwakukulu kuposa kukula komwe kwatchulidwa amapangidwa, ma molekyulu omwe amakumana ndi UV amasintha kuchoka pamadzimadzi kupita ku olimba. (d) Zowonjezera zosiyanasiyana (stabilizer, filler, pigment, ndi zina zotero) zimawonjezedwa ku UV curable resin composition ngati pakufunika, kuti

(d) kuipatsa kukhazikika, mphamvu, ndi zina zotero.

(e) Utomoni wochiritsa wa UV womwe umakhala m'thupi, womwe umatha kuyenda mosavuta, nthawi zambiri umachiritsidwa ndi njira zotsatirazi:

(f) (1) Zoyambitsa photopolymerization zimayamwa UV.

(g) (2) Oyambitsa photopolymerization awa omwe atenga UV amasangalala.

(h) (3) Zoyambitsa photopolymerization zomwe zimayambitsidwa zimagwira ntchito ndi zigawo za resin monga oligomer, monomer, ndi zina zotero, kudzera mu kuwonongeka.

(i) (4) Kuphatikiza apo, zinthuzi zimagwirizana ndi zigawo za utomoni ndipo unyolo umapitilira. Kenako, kusakanikirana kwa magawo atatu kumapitilira, kulemera kwa mamolekyu kumawonjezeka ndipo utomoni umachira.

(j) 4. Kodi UV ndi chiyani?

(k) UV ndi mafunde amagetsi okhala ndi kutalika kwa 100 mpaka 380nm, otalikirapo kuposa a X-ray koma ofupikirapo kuposa a kuwala kooneka.

(l) UV imagawidwa m'magulu atatu omwe akuwonetsedwa pansipa malinga ndi kutalika kwa nthawi yake:

(m) UV-A (315-380nm)

(n) UV-B (280-315nm)

(o) UV-C (100-280nm)

(p) UV ikagwiritsidwa ntchito pochiza utomoni, mayunitsi otsatirawa amagwiritsidwa ntchito poyesa kuchuluka kwa kuwala kwa UV:

(q) - Mphamvu ya kuwala kwa dzuwa (mW/cm2)

(r) Mphamvu ya kuwala kwa dzuwa pa gawo lililonse

(s) - Kuwonetsedwa ndi UV (mJ/ cm2)

(t) Mphamvu ya kuwala pa gawo lililonse la unit ndi kuchuluka konse kwa ma photon kuti afike pamwamba. Zotsatira za mphamvu ya kuwala ndi nthawi.

(u) - Ubale pakati pa kuwala kwa UV ndi mphamvu ya kuwala

(v) E=I x T

(w) E=Kuwonekera kwa UV (mJ/cm2)

(x) I = Mphamvu (mW/cm2)

(y) T = Nthawi yowunikira (s)

(z) Popeza kuwala kwa UV komwe kumafunika kuti kuwala kuume kumadalira zinthu zomwe zili mkati mwake, nthawi yowunikira yomwe ikufunika ingapezeke pogwiritsa ntchito njira yomwe ili pamwambapa ngati mukudziwa mphamvu ya kuwala kwa UV.

(aa) 5. Chiyambi cha Zamalonda

(ab) Zipangizo Zothandizira Kuchiritsa UV Zothandiza

(ac) Zipangizo Zothandizira Kuchiritsa Zothandiza ndi zida zochepetsetsa komanso zotsika mtengo kwambiri za UV Curing Equipment pakati pa zinthu zathu.

(ad) Zipangizo Zochiritsira UV Zomangidwa mkati

(ae) Zipangizo Zophikira UV Zomangidwa mkati mwake zili ndi njira yochepa yogwiritsira ntchito nyali ya UV, ndipo zitha kulumikizidwa ku zida zomwe zili ndi chonyamulira.

Zipangizozi zimapangidwa ndi nyali, chowunikira, gwero lamagetsi ndi chipangizo choziziritsira. Zigawo zina zomwe mungasankhe zitha kulumikizidwa ku chowunikira. Mitundu yosiyanasiyana ya magwero amagetsi kuyambira pa inverter yosavuta mpaka ma inverter amitundu yambiri ikupezeka.

Zipangizo Zochiritsira UV Pakompyuta

Ichi ndi UV Curing Equipment chomwe chapangidwira kugwiritsidwa ntchito pa kompyuta. Popeza ndi chaching'ono, sichifuna malo ambiri kuti chiyikidwe ndipo ndi chotsika mtengo kwambiri. Ndichoyenera kwambiri poyesa ndi kuyesa.

Zipangizozi zili ndi makina otsekera mkati mwake. Nthawi iliyonse yowunikira yomwe mukufuna ikhoza kukhazikitsidwa kuti iwonetse bwino kwambiri.

Zipangizo Zochiritsira UV zamtundu wa Conveyor

Zipangizo Zochiritsira UV zamtundu wa Conveyor zimaperekedwa ndi ma conveyor osiyanasiyana.

Timapanga ndi kupanga zida zosiyanasiyana kuyambira zida zazing'ono zoyeretsera UV zokhala ndi ma conveyor ang'onoang'ono mpaka zida zazikulu zokhala ndi njira zosiyanasiyana zosamutsira, ndipo nthawi zonse timapereka zida zoyenera makasitomala.