Ubuchwepheshe Bokwelapha UV

1. Buyini ubuchwepheshe bokwelapha i-UV?

Ubuchwepheshe Bokwelapha UV buwubuchwepheshe bokuphola noma ukomisa ngokushesha ngemizuzwana lapho i-ultraviolet isetshenziswa khona kuma-resin afana nokumboza, izinamathiseli, uyinki wokumaka kanye nama-photo-resists, njll., ukuze kubangele i-photopolymerization. Ngezindlela zokusabela nge-olymerization ngokumisa ngokushisa noma ukuxuba uketshezi olubili, ngokuvamile kuthatha imizuzwana embalwa kuya emahoreni amaningana ukomisa i-resin.

Eminyakeni engaba ngu-40 eyedlule, lobu buchwepheshe baqala ukusetshenziswa ngokoqobo ekomiseni ukuphrinta ku-plywood ukuze kwenziwe izinto zokwakha. Kusukela ngaleso sikhathi, busetshenziswe emikhakheni ethile.

Muva nje, ukusebenza kwe-resin elaphekayo ye-UV kuthuthuke kakhulu. Ngaphezu kwalokho, izinhlobo ezahlukene ze-resin elaphekayo ye-UV seziyatholakala futhi ukusetshenziswa kwazo kanye nemakethe kukhula ngokushesha, ngoba kunenzuzo ngokonga amandla/isikhala, ukunciphisa imfucuza, futhi kufeza umkhiqizo ophezulu kanye nokwelashwa okushisa okuphansi.

Ngaphezu kwalokho, i-UV ifaneleka futhi ekubumbeni okubonakalayo ngoba inamandla aphezulu futhi ingagxila kuma-spot diameter amancane, okusiza ukuthola kalula imikhiqizo ebunjiwe enembile kakhulu.

Ngokuyisisekelo, njengoba ingeyona into encibilikisayo, i-resin elaphekayo ye-UV ayinayo noma iyiphi incibilikisayo ebangela imiphumela emibi (isb., ukungcola komoya) emvelweni. Ngaphezu kwalokho, njengoba amandla adingekayo ekuqiniseni ephansi futhi ukukhishwa kwe-carbon dioxide kuphansi, lobu buchwepheshe kunciphisa umthwalo wemvelo.

2. Izici Zokwelapha Nge-UV

1. Ukusabela kokuphulukisa kwenzeka ngemizuzwana

Ekusabeleni kokwelapha, i-monomer (Liquid) ishintsha ibe yi-polymer (Solid) ngemizuzwana embalwa.

2. Ukusabela okuvelele kwemvelo

Njengoba yonke into ilashwa ngokuyisisekelo yi-photopolymerization engenaso isinyibilikisi, kusebenza kahle kakhulu ukufeza izidingo zemithethonqubo nemiyalo ehlobene nemvelo efana noMthetho we-PRTR (Pollutant Release and Transfer Register) noma i-ISO 14000.

3. Ilungele ukwenza ngokuzenzakalela kwenqubo

Izinto ezilaphekayo ze-UV azilapheki ngaphandle kokuthi zibekwe ekukhanyeni, futhi ngokungafani nezinto ezilaphekayo ngokushisa, azilapheki kancane kancane ngesikhathi sokulondolozwa. Ngakho-ke, isikhathi sazo sokusebenza ebhodweni sifushane ngokwanele ukuthi zisetshenziswe enqubweni yokuzenzakalela.

4. Ukwelashwa ngezinga lokushisa eliphansi kungenzeka

Njengoba isikhathi sokucubungula sifushane, kungenzeka ukulawula ukwenyuka kwezinga lokushisa lento eqondiwe. Lesi ngesinye sezizathu zokuthi kungani isetshenziswa kuma-elekthronikhi amaningi azwela ukushisa.

5. Kufanelekela zonke izinhlobo zesicelo njengoba kunezinto ezahlukahlukene ezitholakalayo

Lezi zinto zinobulukhuni obuphezulu kanye nokucwebezela. Ngaphezu kwalokho, zitholakala ngemibala eminingi, ngakho-ke zingasetshenziswa ngezinhloso ezahlukene.

3. Isimiso Sobuchwepheshe Bokwelapha I-UV

Inqubo yokushintsha i-monomer (uketshezi) ibe yi-polymer (eqinile) ngosizo lwe-UV ibizwa ngokuthi i-UV Curing E kanti izinto eziphilayo zokwenziwa ezizolashwa zibizwa ngokuthi i-UV Curable Resin E.

I-UV Curable Resin iyinhlanganisela equkethe:

(a) i-monomer, (b) i-oligomer, (c) i-photopolymerization initiator kanye (d) nezithasiselo ezahlukahlukene (izinzisi, izigcwalisi, imibala, njll.).

(a) I-Monomer iyinto ephilayo epholishwayo futhi iguqulwe ibe ama-molecule amakhulu e-polymer ukuze yakhe ipulasitiki. (b) I-Oligomer iyinto esevele isabela kuma-monomer. Ngendlela efanayo ne-monomer, i-oligomer ipholishwayo futhi iguqulwe ibe ama-molecule amakhulu ukuze yakhe ipulasitiki. I-Monomer noma i-oligomer azikhiqizi kalula ukusabela kwe-polymerization, ngakho-ke zihlanganiswa ne-photopolymerization initiator ukuqala ukusabela. (c) I-photopolymerization initiator ivuselelwa ukumuncwa kokukhanya futhi lapho kwenzeka ukusabela, okufana nokulandelayo:

(b) (1) Ukuqhekeka, (2) Ukuqedwa kwe-hydrogen, kanye (3) nokudluliswa kwe-electron.

(c) Ngale ndlela yokusabela, izinto ezifana nama-radical molecule, ama-hydrogen ion, njll., aqala ukusabela ziyakhiqizwa. Ama-radical molecule akhiqizwayo, ama-hydrogen ion, njll., ahlasela ama-oligomer noma ama-monomer molecule, kanye ne-polymerization noma i-crosslinking reaction enezinhlangothi ezintathu iyenzeka. Ngenxa yale ndlela yokusabela, uma ama-molecule anosayizi omkhulu kunosayizi ocacisiwe ekhiwa, ama-molecule abonakala ku-UV ashintsha kusuka kuketshezi abe yinto eqinile. (d) Izithasiselo ezahlukahlukene (isiqinisi, isigcwalisi, i-pigment, njll.) zengezwa ekwakhiweni kwe-resin elaphekayo ye-UV njengoba kudingeka, ukuze

(d) ukusinika ukuqina, amandla, njll.

(e) I-resin ye-UV elaphekayo yesimo soketshezi, egeleza kalula, ivame ukuphulukiswa ngezinyathelo ezilandelayo:

(f) (1) Abaqalisi be-photopolymerization badonsa i-UV.

(g) (2) Laba baqalisi be-photopolymerization abamunce i-UV bayavuswa.

(h) (3) Iziqalisi ze-photopolymerization ezisebenzayo zisabela ngezingxenye ze-resin ezifana ne-oligomer, i-monomer, njll., ngokubola.

(i) (4) Ngaphezu kwalokho, le mikhiqizo isabela ngezingxenye ze-resin bese kuba nokusabela kweketanga. Ngemuva kwalokho, ukusabela kokuxhumanisa okunezinhlangothi ezintathu kuyaqhubeka, isisindo sama-molecule siyanda bese i-resin iphiliswa.

(j) 4. Kuyini i-UV?

(k) I-UV iyigagasi likagesi elingu-100 kuya ku-380nm ubude besikhathi, elide kunele-X-ray kodwa lifushane kunelemisebe ebonakalayo.

(l) I-UV ihlukaniswe ngezigaba ezintathu eziboniswe ngezansi ngokwe-wavelength yayo:

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

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

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

(p) Uma i-UV isetshenziswa ukwelapha i-resin, amayunithi alandelayo asetshenziswa ukukala inani lemisebe ye-UV:

(q) - Ukuqina kwemisebe (mW/cm2)

(r) Ukuqina kwemisebe ngeyunithi ngayinye

(s) - Ukuvezwa kwe-UV (mJ/ cm2)

(t) Amandla okushiswa kwemisebe ngeyunithi ngayinye kanye nenani eliphelele lama-photon ukuze afinyelele phezulu. Umkhiqizo wokuqina kwemisebe nesikhathi.

(u) - Ubudlelwano phakathi kokuchayeka kwe-UV kanye nokuqina kwemisebe

(v) E=I x T

(w) Ukuchayeka kwe-E=UV (mJ/cm2)

(x) I = Ukuqina (mW/cm2)

(y) T=Isikhathi sokukhanya (s)

(z) Njengoba ukuchayeka kwe-UV okudingekayo ukuze kuqiniswe kuncike ezintweni ezisetshenziswayo, isikhathi sokukhanya esidingekayo singatholakala ngokusebenzisa ifomula engenhla uma wazi amandla okukhanya kwe-UV.

(aa) 5. Isingeniso Somkhiqizo

(ab) Imishini Yokwelapha UV Ewusizo Yohlobo Olusebenzayo

(ac) Imishini Yokwelapha Elula Esebenzisa UV iyimishini Yokwelapha ye-UV encane kakhulu futhi engabizi kakhulu phakathi kohlu lwethu lwemikhiqizo.

(isikhangiso) Imishini Yokwelapha UV Eyakhelwe Ngaphakathi

(ae) Imishini Yokwelapha UV Eyakhelwe ngaphakathi inikezwa indlela encane edingekayo yokusebenzisa isibani se-UV, futhi ingaxhunywa emishinini ene-conveyor.

Le mishini yakhiwe isibani, i-irradiator, umthombo wamandla kanye nedivayisi yokupholisa. Izingxenye ongazikhetha zingaxhunywa ku-irradiator. Izinhlobo ezahlukene zemithombo yamandla kusukela ku-inverter elula kuya kuma-inverter ezinhlobo eziningi ziyatholakala.

Imishini Yokwelapha UV Yedeskithophu

Lena yi-UV Curing Equipment eyenzelwe ukusetshenziswa kudeskithophu. Njengoba incane, idinga isikhala esincane sokufakwa futhi iyonga kakhulu. Ifaneleka kakhulu ezivivinyweni nasekuhlolweni.

Lo mshini unendlela yokuvala eyakhelwe ngaphakathi. Noma yisiphi isikhathi sokukhanyisa esifiselekayo singasethwa ukuze kube nokukhanya okusebenza kahle kakhulu.

Imishini Yokwelapha UV Yohlobo Lokuthutha

Imishini Yokwelapha UV yohlobo lweConveyor inikezwa ngama-conveyor ahlukahlukene.

Siklama futhi sakha imishini ehlukahlukene kusukela ku-compact UV Curing Equipment enama-conveyor amancane kuya kumishini emikhulu enezindlela ezahlukene zokudlulisa, futhi sihlala sinikeza imishini efanela izidingo zamakhasimende.