Ukadaulo wozindikiritsa laser ndi imodzi mwamagawo akulu kwambiri ogwiritsira ntchito laser processing. Kuyika chizindikiro kwa laser ndi njira yolembera yomwe imagwiritsa ntchito laser yamphamvu kwambiri kuti iwunikire malo ogwirira ntchito kuti isungunuke pamwamba pa zinthu kapena kupangitsa kuti mankhwala asinthe mtundu, potero kusiya chizindikiro chokhazikika. Kuyika chizindikiro cha laser kumatha kutulutsa zilembo zosiyanasiyana, zizindikilo ndi mawonekedwe, ndi zina zambiri, ndipo kukula kwa zilembo kumatha kusiyanasiyana kuchokera ku mamilimita mpaka ma micrometer, omwe ali ndi tanthauzo lapadera pazotsutsana ndi zinthu zabodza.
Mfundo ya laser coding
Mfundo yofunikira pakuyika chizindikiro cha laser ndikuti mtengo wamagetsi wopitilira mphamvu wambiri umapangidwa ndi jenereta ya laser, ndipo laser yolunjika imagwira ntchito pazosindikiza kuti isungunuke kapena kusungunula zinthu pamwamba. Poyang'anira njira ya laser pamwamba pa zinthu, imapanga Zolemba zofunikira.
Chiwonetsero chimodzi
Kukonzekera kosalumikizana, kumatha kuzindikirika pamalo aliwonse owoneka bwino, chogwiriracho sichidzasokoneza ndikupanga kupsinjika kwamkati, koyenera kuyika zitsulo, pulasitiki, galasi, ceramic, matabwa, zikopa ndi zinthu zina.
Chiwonetsero chachiwiri
Pafupifupi mbali zonse (monga ma pistoni, mphete za pistoni, ma valve, mipando ya valve, zida za hardware, ware waukhondo, zida zamagetsi, ndi zina zotero) zikhoza kulembedwa, ndipo zizindikirozo zimakhala zosagwira ntchito, kupanga ndi kosavuta kuzindikira makina, ndi zina zotero. mbali zolembedwa zimakhala ndi zopindika pang'ono.
Chiwonetsero chachitatu
Njira yojambulira imagwiritsidwa ntchito poyika chizindikiro, ndiye kuti, kuwala kwa laser kumachitika pa magalasi awiri, ndipo makina ojambulira omwe amayendetsedwa ndi makompyuta amayendetsa magalasi kuti azungulire motsatira nkhwangwa za X ndi Y motsatana. Pambuyo poyang'anitsitsa mtengo wa laser, umagwera pa cholembera cholembedwa, potero kupanga chizindikiro cha laser. kutsatira.
Ubwino wa laser coding
01
Mtengo wochepa kwambiri wa laser pambuyo poyang'ana laser uli ngati chida, chomwe chimatha kuchotsa zinthu zapamtunda za chinthucho ndi mfundo. Chikhalidwe chake chapamwamba ndikuti kuyika chizindikiro sikumalumikizana, komwe sikutulutsa mawotchi otulutsa kapena kupsinjika kwamakina, kotero sikudzawononga nkhani yokonzedwa; Chifukwa chazing'ono za laser pambuyo poyang'ana, malo ang'onoang'ono omwe amakhudzidwa ndi kutentha, ndi kukonza bwino, njira zina zomwe sizingakwaniritsidwe ndi njira zowonongeka zimatha kutha.
02
"Chida" chomwe chimagwiritsidwa ntchito pokonza laser ndi malo owunikira. Palibe zida zowonjezera ndi zida zomwe zimafunikira. Malingana ngati laser imatha kugwira ntchito bwino, imatha kukonzedwa mosalekeza kwa nthawi yayitali. Kuthamanga kwa laser processing ndikofulumira ndipo mtengo wake ndi wotsika. Kusintha kwa laser kumayendetsedwa kokha ndi kompyuta, ndipo palibe kulowererapo kwa munthu komwe kumafunikira panthawi yopanga.
03
Ndi chidziwitso chamtundu wanji chomwe laser amatha kuchilemba chimangokhudzana ndi zomwe zidapangidwa pakompyuta. Malingana ngati makina olembera zojambulajambula omwe amapangidwa pakompyuta amatha kuzindikira, makina osindikizira akhoza kubwezeretsa molondola chidziwitso cha mapangidwe pa chonyamulira choyenera. Choncho, ntchito ya pulogalamuyo imatsimikiziranso ntchito ya dongosololi pamlingo waukulu.
Pogwiritsira ntchito laser pa SMT field, laser marking traceability imachitika makamaka pa PCB, ndipo kuwononga kwa laser kwa mafunde osiyanasiyana ku PCB tin masking layer sikugwirizana.
Pakali pano, ma lasers omwe amagwiritsidwa ntchito popanga laser coding amaphatikiza ma fiber lasers, ultraviolet lasers, green lasers ndi CO2 lasers. Ma lasers omwe amagwiritsidwa ntchito kwambiri pamakampani ndi ma lasers a UV ndi CO2 lasers. Ma lasers obiriwira ndi ma laser obiriwira sagwiritsidwa ntchito mochepera.
laser fiber-optic
Fiber pulse laser imatanthawuza mtundu wa laser womwe umapangidwa pogwiritsa ntchito ulusi wagalasi wokhala ndi zinthu zapadziko lapansi (monga ytterbium) monga njira yopezera phindu. Lili ndi mphamvu zambiri zowala kwambiri. Kutalika kwa pulsed fiber laser ndi 1064nm (yofanana ndi YAG, koma kusiyana kwake ndi zinthu zogwirira ntchito za YAG ndi neodymium) (QCW, fiber laser yopitilira ili ndi kutalika kwa 1060-1080nm, ngakhale QCW ndi laser yopumira, koma kugunda kwake. M'badwo limagwirira ndi osiyana kotheratu, ndi wavelength ndi osiyana), ndi laser pafupi infuraredi. Itha kugwiritsidwa ntchito polemba zinthu zachitsulo komanso zopanda zitsulo chifukwa cha kuchuluka kwa mayamwidwe.
Njirayi imatheka pogwiritsa ntchito matenthedwe a laser pazinthuzo, kapena kutenthetsa ndi kutenthetsa zinthu zapamadzi kuti ziwonetse zigawo zakuya zamitundu yosiyanasiyana, kapena kutenthetsa kusintha kwapang'onopang'ono pakhungu (monga ma nanometers ena), ma nanometer khumi) Mabowo ang'onoang'ono amtundu amatulutsa thupi lakuda, ndipo kuwala kumatha kuwonetsedwa pang'ono, kupangitsa kuti zinthuzo ziwoneke zakuda) ndipo mawonekedwe ake owunikira adzasintha kwambiri, kapena kudzera muzochita zina zamakina zomwe zimachitika mukatenthedwa ndi mphamvu yowunikira. , iwonetsa Zomwe zimafunikira monga zithunzi, zilembo, ndi ma QR code.
UV laser
Ultraviolet laser ndi laser yaufupi-wavelength. Nthawi zambiri, ukadaulo wowirikiza kawiri umagwiritsidwa ntchito kutembenuza kuwala kwa infuraredi (1064nm) komwe kumapangidwa ndi laser solid-state kukhala 355nm (katatu pafupipafupi) ndi 266nm (quadruple frequency) kuwala kwa ultraviolet. Mphamvu yake ya photon ndi yaikulu kwambiri, yomwe ingagwirizane ndi mphamvu zamagulu ena a mankhwala (ma ionic bonds, covalent bonds, metal bond) pafupifupi zinthu zonse zachilengedwe, ndikuphwanya mwachindunji mgwirizano wa mankhwala, zomwe zimapangitsa kuti zinthuzo ziwonongeke popanda zoonekeratu. matenthedwe zotsatira (phata, Ena mphamvu milingo ya ma elekitironi mkati akhoza kuyamwa ultraviolet photon, ndiyeno kusamutsa mphamvu kudzera latisi kugwedera, chifukwa matenthedwe zotsatira, koma si zoonekeratu), amene ali "ntchito ozizira". Chifukwa palibe zotsatira zoonekeratu matenthedwe, UV laser sangagwiritsidwe ntchito kuwotcherera, ambiri ntchito cholemba ndi mwatsatanetsatane kudula.
Kuyika chizindikiro kwa UV kumachitika pogwiritsa ntchito mawonekedwe a photochemical pakati pa kuwala kwa UV ndi zinthu zomwe zimapangitsa kuti mtunduwo usinthe. Kugwiritsa ntchito magawo oyenerera kungapewe kuchotsedwa koonekeratu pamwamba pa zinthuzo, motero kumatha kuyika zithunzi ndi zilembo popanda kukhudza kowonekera.
Ngakhale ma lasers a UV amatha kuyika zitsulo zonse komanso zopanda zitsulo, chifukwa cha mtengo wake, ma laser a fiber nthawi zambiri amagwiritsidwa ntchito polemba zida zachitsulo, pomwe ma lasers a UV amagwiritsidwa ntchito kuyika zinthu zomwe zimafunikira mawonekedwe apamwamba kwambiri ndipo zimakhala zovuta kuzikwaniritsa ndi CO2, kupanga Mtengo wotsika kwambiri wa magawo a CO2.
Green Laser
Green laser ndi laser wavelength lalifupi. Nthawi zambiri, ukadaulo wowirikiza kawiri umagwiritsidwa ntchito kutembenuza kuwala kwa infuraredi (1064nm) kotulutsidwa ndi laser yolimba kukhala kuwala kobiriwira pa 532nm (kawiri pafupipafupi). Laser wobiriwira ndi kuwala kowonekera ndipo ultraviolet laser ndi kuwala kosaoneka. . Green laser ali ndi mphamvu yaikulu ya photon, ndipo mawonekedwe ake ozizira ozizira ndi ofanana kwambiri ndi kuwala kwa ultraviolet, ndipo amatha kupanga zosankha zosiyanasiyana ndi ultraviolet laser.
Njira yowunikira yobiriwira ndi yofanana ndi laser ya ultraviolet, yomwe imagwiritsa ntchito mawonekedwe a photochemical pakati pa kuwala kobiriwira ndi zinthu zomwe zimapangitsa kuti mtunduwo usinthe. Kugwiritsa ntchito magawo oyenerera kungapewe kuchotseratu zowoneka bwino pazinthu zakuthupi, kotero zimatha kuyika chizindikirocho popanda kukhudza koonekeratu. Monga momwe zilili ndi zilembo, nthawi zambiri pamakhala chophimba cha malata pamwamba pa PCB, chomwe nthawi zambiri chimakhala ndi mitundu yambiri. Laser yobiriwira imakhala ndi yankho labwino kwa izo, ndipo zithunzi zojambulidwa ndizomveka bwino komanso zosavuta.
CO2 laser
CO2 ndi laser yomwe imagwiritsidwa ntchito kwambiri yomwe imakhala ndi mphamvu zambiri zowala. Wavelength wamba wa laser ndi 9.3 ndi 10.6um. Ndi laser yakutali yokhala ndi mphamvu yopitilira mpaka makumi a kilowatts. Nthawi zambiri laser yamphamvu ya CO2 imagwiritsidwa ntchito pomaliza kuyika chizindikiro kwa mamolekyu ndi zinthu zina zopanda zitsulo. Nthawi zambiri, ma lasers a CO2 sagwiritsidwa ntchito kawirikawiri kuyika zitsulo, chifukwa mayamwidwe azitsulo ndi otsika kwambiri (CO2 yamphamvu kwambiri ingagwiritsidwe ntchito podula ndi kutenthetsa zitsulo. Chifukwa cha kuchuluka kwa mayamwidwe, kutembenuka kwa electro-optical, njira ya kuwala ndi kukonza. ndi zinthu zina, zakhala zikugwiritsidwa ntchito pang'onopang'ono ndi fiber lasers).
Kuyika chizindikiro kwa CO2 kumachitika pogwiritsa ntchito kutentha kwa laser pazinthuzo, kapena kutenthetsa ndi kutenthetsa zinthu zapamadzi kuti ziwonetse zigawo zakuya zamitundu yosiyanasiyana, kapena ndi mphamvu yowunikira kutentha kwapang'onopang'ono kusintha kwa thupi pamwamba pa zinthuzo. zipangitseni kuwonetsera Kusintha kwakukulu kumachitika, kapena zochitika zina za mankhwala zomwe zimachitika pamene zimatenthedwa ndi mphamvu ya kuwala, ndipo zithunzi zofunikira, zilembo, zizindikiro ziwiri ndi zina zikuwonetsedwa.
Ma laser a CO2 nthawi zambiri amagwiritsidwa ntchito pazinthu zamagetsi, zida, zovala, zikopa, matumba, nsapato, mabatani, magalasi, mankhwala, chakudya, zakumwa, zodzoladzola, zopaka, zida zamagetsi ndi magawo ena omwe amagwiritsa ntchito polima.
Laser coding pa PCB zipangizo
Chidule cha kusanthula kowononga
Ma lasers a CHIKWANGWANI ndi CO2 lasers onse amagwiritsa ntchito matenthedwe a laser pazinthuzo kuti akwaniritse cholembacho, makamaka kuwononga pamwamba pa zinthuzo kuti apange kukana, kutulutsa mtundu wakumbuyo, ndikupanga chromatic aberration; pomwe ultraviolet laser ndi laser wobiriwira amagwiritsa ntchito laser kuti The chemical reaction of the material imapangitsa kuti mtundu wa zinthu usinthe, ndiyeno sichitulutsa kukana, kupanga zithunzi ndi zilembo popanda kukhudza koonekeratu.