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Kungakhathalwa Ukucutshwa kwe-Laser kwe-Polycarbonate?
Ukuchithwa kwezokwelapha kwekucutshwa kwe-laser kwe-polycarbonate
Kuyadinga ukuthi kwenzeke ukugcwalisa i-polycarbonate ngokusebenzisa inqanawa yelase ehlangothini uma izigaba nezimpendulo ezifanele ziphathelene. Indlela engaphandle kokuthinta kumenza kube yimali enobunkazane kakhulu nembalwa ngaphezulu okanye phansi kwemilimita 0.1 even kumateriali athinthela imilimita 25. Kodwa kukhona into ebalulekile: abasebenzisi kumele bakulandela izinkinga zokukhanyeka uma bayaqondana ngendlela efanele. Kuzindlela zokugcwalisa njalo, i-laser ye-CO2 enezinga eliphakeme kwezinto eziphakeme kuma-9.3 kuya ku-10.6 microns yayisetyenziswa kakhulu. Lezi zisebenza kahle kakhulu kuzinye izimo. Ngokwesinye isikhathi, lezi zi-laser ezihle eziyintshukumo ze-UV ezingama-355 nanometers zenza amava ahlanjwayo kakhulu, ikakhulu xa kusebenzela kumazinga amancane kunamalanga amhalf millimeter. Kepha uvikeleke, lezi zixhobo ezithile zinomlando omkhulu. Ukufaneleka kakhulu kuyaphenduka ngokuhlelwa kwe-point yokuphakama, ukuqinisa izimo ngexesha lokusebenza, nokuthi inqanawa yokuhlaka ibe nemigaqo yonke yokuphepha ngokushesha kumoya.
Amaphropathi emkhawulo makhulu: Ukuziphatha kwezindlela kanye nokugcinwa kwegunya
Ukudala okuncane kuka-polycarbonate (0.2 W/m·K) nokugcinwa okuphakade kwenziwa kube lula ukuziphatha kwegunya. Ngemini-150°C, ukwanda kwegunya kuvula uhlelo lwesithili–lithintela imibono ethulukene etathu:
- Ithermal stress , ekhishwa uma izigaba zokuhlanya ziyancipha kune-10°C/sec, kuthinta amathambo amancane athintekayo okunqoba ngakumbi kuye ku-40%
- Ukushintwa kwendlela , ekhishwa yi-photo-oxidation phansi kwe-300°C, kusinika umgwa othubi noma opholile
- Ukungcola kwemolekiyuli , okusisa i-bisphenol-A particulates esidinga ukulahla kwegunya ngokusebenzisa i-ventilation enikwe yimali ngokwemigaqo ye-OSHA
Izihlangothi ezincane (<3 mm) zilahla igunya ngempumelelo, ngelixa izihlangothi ezide zifuna imodi yesilaser ehlinzekile kanye nesiseko esinamandla sokuxhumana—sikhupha igunya eliphezulu ngama-60–80°C futhi sivimbe le mininingwane imithathu.
Amabhonifa we-Laser Cutting Polycarbonate
Ubucophele kabanzi kanye nokulinganiso okuhle, okunjalo okuphaphaziyayo
Ukucutshungulwa kwe-laser kungakwazi ukufinyelela kwezilinganiso ezilungileyo kakhulu, kanye nokufinyelela kwezilinganiso ezingaphezu kwe-±0.1 mm noma xa kusebenzisa izigaba ezinzima njengezazikhiwa ema-microfluidics noma ema-optical parts. Ngoba yindlela eyingaphandle kwezinto, akukho ukulahlekelwa kwezixhobo, kanti nakho ikhupha ukugcinwa kwezixhobo. Iziphumo? Iindlela ezicacileyo ezingaphandle kwezibhobho kwaye azibonakali izahluko ezincinci ezibulala ezinye izindlela. Kumaqondo njenge-polycarbonate, oku kubalulekile kakhulu ngoba kuchazela izinto zazo zokubona. Kanti makungazange sithathe inkathalo yokunyusa – iintsango ziqinisekisa ukuba sikhupha umsebenzi wokuphucula phambili ngaphakathi kwe-60 ukuya ku-80 ngenkohlaka kumendalo yezixhobo ngokomgangatho ophathwayo wasekuqaleni ngo-Last Year.
Ukusebenzisa ngaphandle kwezinto kunye nokwahluka kwebume
Xa akukho umthwalo ophakeme, kumisa lezinkinga ezihlukileyo zokuchithwa kwezikhathi, okubaluleke kakhulu kumetjwara emncane kunesimithi evela kumgama. Indlela yedijithali ikuvikela ukuthi kuqwalaselwe izixhumanisi ezahlukene ngokushesha ngezindawo zokuphuhlisa. Cabanga ngalezi zinto ezifana nokuchithwa okungcono, izixhumanisi ezinhle nezinzansi, amaphethini amancane angaphansi kwesimithi esisodwa, futhi nakho izinxiba ezinezigaba ezintokothile kunesimithi esisodwa. Lezi zindlela ziyaguqula umlando kumasebe afunayo ubuchwepheshe obuphezulu, njengekuthutha izixhobo zezempilo noma izicelo zezindanda zezemoto. Izindlela eziveza izinto ezivela ebandleni azichazi ngaleso myalelo ngoba zilahlekelwa imali enkulu kakhulu noma ziyalinganayo ngokungafanele lokhu kwenza lokhu kuhlanganisa.
Iziphumala futhi nezimfuno zokuphepha kokugcina i-Polycarbonate ngelizolo
Izimali eziphazanyayo, izinguquko zomgama, nezehlwayo ezingasheshayo
Ukukhupha kweglasi yokulahleka ngelase evela kumoya obuthakathaka obususelwe ku-chlorine nokuthintana kuka-bisphenol-A, okufanele kube neventilation nesithuthi sezivumbi njengoko kuchaziwe yi-OSHA. Kunezinkinga zokubaluleka futhi:
- Ukuhlukunyezwa kwemvula yomusa ngokuhlisa kancane
- Isimo sengqondo esinamandla engqondini ngokuhluka kwe-micro-fracturing phansi kwesikhathi
- Ukuqhatha emakhathini kokukhupha uma izindleko zokuhlisa ziyehlukile kuma-300°C
Lezi ziphatheko ziwela zidinga ukupholishwa kwesibili, okwakhulisa isikhathi sokwakha ngama-15–30% ngasinye isigaba.
Uphefumulo lwephashe noma izinkinga zokuprosesa emuva
Ipolikhabhonethi inemipongo embi yokuphazanyiswa ngaphezu kwezingu-297 degrees Fahrenheit noma ngaphezu kwezingu-147 Celsius, lokhu kwenza ikhathazekile ukuthi kuthintelwe uma sikhuphuma ngelaze. Kutheni okuthile kuhlala kuhlala kuhlala kuqhubeka? Kakhulu, amacebiso ayahlaziyeka emva kokukhuphuma, kunezinqamuzi zomkhawulo okwenzeka kakhulu kususwa isivinini esingaphansi kwezingu-30 kuya kwezingu-40 iphasenthi, kanti amashiti amakhulu kunemilimita-5 ayahlala akhula izinkomba. Emva kokuphazanyiswa kwesivinini, abayenzela baphakamisa izinkinga eziningi futhi. Kunezinto ezilahlekile ezilahlekile ezingalahlwa kudingeka ukucimela, umthelela uphazanyiswa kwakhe kanti abantu kudingeka bakhululeke kakhulu, kanti ngaphakathi kwezona ndawo aphazanyiswa ngazo yilaze, isakhiwo siphazanyiswa. Lonke lo mlando kusho ukuthi kudingeka isikhathi eside kusewekwa kumsebenzi futhi izindleko eziningi kakhulu zokulunga kakhulu kuzo zonke izikhathi zokwakha.
Ukuzinzisa kwezipharamitha kanye nendima yomoya ohlelenza ekususweni kwezinkinga
Ukufinyelela kwezindlela ezihlangothini, eziphathelene nokuphelelwa kumele kube khona ukulungiswa okucophele kuziphakamiso ezintathu eziphambili:
| Ipharamitha | Isilinganiso esihle | Isiphumo sekuhlatywa |
|---|---|---|
| Umbono wokuphinda | 20–30 W/cm² | Kuchithwa (phezulu) / Izindlela ezingazange ziqediwe (phansi) |
| Isivinini sokusika | 0.8–1.2 m/min | Ukugcoba kwemiva (kancane) / Imiphiko yokuvutha (kushisa) |
| Isikhundla sekhala | +1 mm phezulu kwesayizi | Kwenzeka ngokuncane ukuthulula kwegudu |
Ukusiza kweyela—kunika igazi elipreshayiwe 15–20 PSI ngokudondosheneyo yisivumelwano esinamathela—kuchitha imiphiko yesinkwa ngaproximali ku-60%. Ikhanya indawo yokuxhumana nokususa izinkuni zomva, kodwa ayikwazi ukubandakanya amathuba ahlelekileyo wesimo sezinto njenge-sensitivity ye-UV noma ukungaqondani komoyeli emakhaya aphezulu.
Uhlobo lwe-Laser noma izinkcubeko zokugcina kanye nokukhetha kwezinkinga kwi-Polycarbonate
CO² kusuka ku-UV Lasers: Kuyiphi Okuhle Kangaka Ekugcinweni Kwe-Polycarbonate?
Ilayasi ye-carbon dioxide ezenzekela kwi-10.6 microns ziyindoda abakhaya abaningi baya kuyo xa kusotwa izinto ze-polycarbonate. Zibambisana kakuhle phakathi kohambo, iminikelo yesimo, kanye nokusebenza kahle nezinto ezinde kude kube ngu-25 milimita. Ngokwesinye isikhathi, izayilesi ze-ultraviolet kwi-355 nanometers zinezindleko ezide ngaphandle okuphethwe kabili noma katholutho, kodwa zivala ngendawo encane kakhulu wakhotheka kwizikhathi zazo. Lokhu kusho ukuthi kuncane kakhulu ukugululwa kwezindlela zosota ngo-60% ngokwemithombo engibonile, kunye nembulelo emangalisayo yezisoto esincane kakhulu ezidingekayo kumashiti amancane angaphansi kwe-3 milimita. Xa umehluko uphawula kakhulu noma xa usebenza nezinto eziphucukile kakhulu, lezi zi-laser ze-UV zinikeza iimpawu ezingcono ezingcono. Kodwa, nje kuphi kungekho projekthi ekudinga ngaphezu kwezindleko kanye nezidingo zokuhlola izinto, kungcono ukulinda ku-CO2 kuzo zonke iziseko.
Izimakethi Ezinconyelwayo: Amandla, Isivinini, kanye Nokunciphisa Ingasitsholo
Ukubophelela kwezimakethi kubalulekile ukuzivikela kwekhweshwe, ukusika okungaphumeleli, nokusungwa kwegazi elihlakile. Kukhuthazwa kakhulu ukusebenzisa ingasitsholo ye-Nitrogen evela kwi-15–20 PSI ukuthintela ukuxidisa kanye nokuthuthukisa ubunzima bokuphuma. Izimakethi ezilungile zihlala ziyancipha ngokuphakade:
| Ubukhulu | Isilinganiso se-Amehlo | Isilinganiso seSivinini |
|---|---|---|
| ≤ 3 mm | 20–40 W | 20–25 mm/s |
| > 3 mm | 40–60 W | 10–15 mm/s |
Izivinini ezincane zihlenza ukuphumelela ngokuphelele ngaphandle kokusabalalisa; amandla aphelele akhuthaza ekhweshwe kanye nokhuthula kwegazi. Ngaphandle kwezimakethi, konke okulungisiwe kufanele kutholakale nokusungwa kwegazi esebenzayo okufanayo nezimo ze-OSHA kanye ne- NIOSH.
Imibuzo Evame Ukubuzwa
Ungakhiqa kabanga i-polycarbonate ekhaya?
Nakuba kungakwenzeka teknikali, akukhondlelwa ukuthi uhlanjwe i-polycarbonate ekhaya ngoba kusuke kunezimalo ezihlambulukayo. Kudingeka ukuvavanywa nokuhlengahlenga kwesimo sezindawo zombuso ukuqinisekisa indawo ebuhleni.
Ityepe yelase lapho iyagconyelwa ukuthi ihlanjwe i-polycarbonate?
Izilase ze-CO2 zidinga kakhulu ukuthi zihlanjwe i-polycarbonate ngoba zomneno futhi zingasebenzela izinto ezinde. Kodwa, izilase ze-UV zenza imiphumela embalwa futhi ziyagula kakhulu ekwenzeni izinto eziphathelene ngezinkinga.
Ungazini njani ukuthi kube luhlaza uma usebenzisa ilase ukuthi uhlanjwe i-polycarbonate?
Ukuncipha ukulahlwa kufanele kube khona ukulawula ngokucophelela amandla wesilase, isivinini, nezinhlelo zokulala. Ukusebenzisa ilase ye-UV ingasiza kakhulu ekunciphiseni ukuhlala kwesibili kanye nokulahlwa kwegudu.
Maphi amathuba okhuseleko afunekayo uma usebenzisa ilase ukuthi uhlanjwe i-polycarbonate?
Ukuvikwa kwegalazi kanye nezinhlelo zokuhlenga kubalulekile ukulawula izimali ezihlukile. Ngaphezu koko, ukulandela izimvo zikaOSHA kanye nokusebenzisa izixhobo zokuphepha kumntu (PPE) zibalulekile ukusebenza ngokuphathelene.