Hauv kev tsim cov txheej txheem kev lag luam gravure luam tawm daim hlau, qhov chaw dav dav dav yuav tsum muaj qhov chaw siab dav. Lub voj voog ua haujlwm ceev nrawm ntawm cov ntawv luam tawm yob yuav tsum muaj kev sib txig ntawm thaj tsam ntawm ntau qhov square metres nrog micron-qib qhov tseeb hauv lub sijhawm luv luv. Daim ntawv thov ntawm lub laser hauv daim teb no muaj cov yam ntxwv nram qab no: kev ua haujlwm siab, qhov ua kom pom tseeb, thiab qhov zoo ntawm cov qauv tes taws digital. Vim tias qhov ua haujlwm tau nce siab, qhov rov ua dua, hloov tau yooj yim, thiab cov khoom lag luam, kev ncaj qha laser microstructuring yog hloov cov kev cai sib tsoo platemaking cov tswv yim (xws li kev siv lub tshuab nrog pob zeb diamond cwjmem lossis tshuaj lom neeg lub cev).
Kev sib hloov qeeb mentshis luam ntawv phaj muaj qhov tsis sib xws tooj liab lossis galvanized steel hlau. Cov duab cov ntaub ntawv tau muab sau rau hauv cov kab noj me me hauv tooj liab lossis galvanized txheej los hloov tus number case rau hauv qab (saib Daim Duab 1). Cov txheej txheem nyias nyias ntawm chrome ua kom ntev kev pab cuam lub neej ntawm lub tshuab luam ntawv nyob rau hauv kev sib tsoo hnyav. Los ntawm kev siv tus kws kho mob hniav, nws yog ua tau kom ntseeg tau tias tsuas yog tus number case raug txiav txim siab los ntawm lub xovtooj ntawm qhov loj me me tau xa tuaj.
Lub gravure luam ntawv lub tog raj kheej yog 0.3-4.4 meters ntev, qhov ncig yog 0.3-2.2 meters, thiab thaj tsam saum npoo tuaj yeem ncav cuag 10 square metres. Thaum lub vijtsam daws teeb meem yog 60-400 kab / cm, pes tsawg lub hlwb ntawm lub nruas yog feem ntau 108 rau 1010. Txhawm rau ua cov duab ua haujlwm hauv lub sijhawm ntau tshaj, lasers yuav tsum muaj lub plawv dhia rov ua dua thiab siab zog nruab nrab. Cov.
Rau kev ua haujlwm loj ua haujlwm micro-engraving los ntawm thermo-optical ablation, cov txheej txheem ua tau zoo tshaj plaws yog kev siv cov nplaim hluav taws xob laser, uas nws cov laser lub ntsej muag tsim ib qho tiav kab noj hniav. A Q-hloov-hloov Nd: YAG laser system nrog qhov nruab nrab tsom xam lub zog ntawm 500 watts thiab qhov ntsuas rov qab ntawm 70 kHz (saib Daim Duab 3) tuaj yeem ua tiav qhov volumetric ablation tus nqi ntawm zinc ntawm 1 cm / min thiab thaj chaw ablation tus nqi ntawm 0.1 M / feeb. Cov duab ntawm cov hlwb yog txiav txim siab los ntawm kev siv nthwv dej ntawm cov duab teeb.
Lub qe ib nrab ntawm lub cev (ob qhov tob thiab lub taub muaj qhov sib txawv hauv qhov grayscale) tuaj yeem tsim los ntawm lub laser nrog Gaussian beam waveform, thaum lub hlwb ib txwm muaj (nrog qhov tob hloov qhov taub ntawm txhua tus nqi grey) yog tsim los ntawm kev siv lub hauv qab-waveforms ( saib daim duab 2). Qhov loj ntawm lub cav kab noj hniav nyob ntawm lub zog mem tes thiab tau tswj hwm los ntawm cov duab digital cov ntaub ntawv teeb tsa los ntawm kev siv acousto-optic modulator. Qhov taub loj li ntawm 25 metres mus rau 150 metres, uas tuaj yeem txhais cov duab daws teeb meem ntawm daim duab; lub qhov tob ntawm 1 meter mus rau 40 meters, uas tuaj yeem txhais tau tus nqi grey ntawm cov ntawv luam tawm.
Thaum tshav kub kub hloov pauv thiab convection ntawm yaj yuav tsum muaj tsawg kawg nkaus. Yog li no, Daetwyler tau tsim cov khoom siv tshwj xeeb electro-galvanized nrog cov organic ntxiv, uas muaj cov khoom cua sov qis dua li cov zinc zoo tib yam. Los ntawm vaporizing thiab ablating no tshwj xeeb zinc, thaj chaw melting thiab burrs tuaj yeem raug txo kom nyias txheej ntawm cov av poob (tsis pub dhau 2-3 metres ib ncig ntawm tes).
Tag nrho saum npoo ntawm nruas yog hloov engraved los ntawm ib tug tas mus lub kauv kab noj hniav. Thaum lub nruas nrawm nce mus txog 20 rpm, lub taub hau ua haujlwm txav ntawm lub txav sib luag ntawm 15-150 microns / kiv puag ncig, mus tib seem rau lub axis ntawm lub nruas (nyob ntawm qhov kev daws teeb meem). Lub tuab ntawm cov txheej phab ntsa nruab nrab ntawm cov hlwb tsuas yog 4-6 microns ntawm qhov ntau tshaj plaws ntawm lub suab nrov. Qhov no yuav tsum tau ua kom pom tseeb qhov tseeb ntawm cov nqaj hlau irradiation roller muaj kwv yees li 1 micron.
Lwm txoj kev yog siv lub mem tes-modulated high-power fiber laser (nruab nrab lub zog ntawm 500 watts), nws cov mem tes rov ua dua zaus tau tuaj yeem hloov kho nyob rau hauv qhov ntau ntawm 30-100 kHz. Thaum qhov zaus muaj 35 kHz, muaj lub zog ntau dua rau txhua lub plawv, yog li ntawd ib qho txhaj tshuaj tuaj yeem tho qhov qhov loj (xws li lub taub ntawm 140 microns thaum lub vijtsam yog 70 kab / cm). Thaum qhov zaus yog 100 kHz, lub zog ntawm txhua tus mem tes yuav tsawg dua, yog li lub me me mesh yog carved (piv txwv li, lub vijtsam nrog lub cheeb ntawm 25 microns yog 400 kab / cm).
Kev ua haujlwm ntawm chirped laser nqaj tsis yog sib chwv, uas yog qhov tseem ceeb dua piv rau electromechanical engraving siv pob zeb diamond mem. Ntev npaum li cov txheej txheem luam ntawv yog kev kwv yees tau thiab rov ua dua, cov lus sib ntxiv engraving tuaj yeem lav dua txhua qhov dav ntawm lub tog raj kheej. Vim tias qhov rov ua tau zoo dua, qhov ib leeg-ib leeg lub qhov ntsej muag cov txheej txheem muaj li 10 npaug sai dua li kev siv hluav taws xob engraving.
Beam siv waveform tes taws los piav
Muaj ntau ntau cov ntaub ntawv pov thawj ntawm cov khoom lag luam luam ntawv (xws li ntawv lossis ntawv ci hloov khoom siv), txhua tus muaj cov yam ntxwv sib txawv. Cov txheej txheem kev ua kom tiav ntawm tus number case hloov nyob ntawm: txheej hauv qab (xws li roughness, muaj peev xwm nqus tau), number case tsis (xws li xim viscosity lossis qauv), thiab luam ntawv phaj. Rau txhua qhov xwm txheej sib txawv, cov kab sib txawv ntawm cov duab puab cov kab sib xyaw ua ke tuaj yeem siv kom ua tiav qhov zoo tshaj plaws.
Ntxiv nrog rau kev ua kom sov thiab convection, lub hlwb ua kom zoo yog lub focal khov waveform ntawm laser nqaj. Txhawm rau ua kom txhua lub cell ncav cuag ib hom duab tshwj xeeb, peb-seem siv txoj kab hluav taws xob ntawm cov nqaj yog nquag tsim nyob rau lub sijhawm, thiab qhov zaus tswj los ntawm cov ntaub ntawv duab yog txog 100 kHz.
Los ntawm cov kev hloov kho nquag ntawm kev siv lub zog waveform thiab kev ywj pheej hloov ntawm lub zog ntawm txhua lub laser mem tes, cov duab, lub taub thiab qhov tob ntawm txhua lub xov tooj ntawm ib leeg tuaj yeem txiav txim siab ntawm nws tus kheej. Hom tshiab ntawm cov ntxaij hauv cov luam ntawv phaj tsim cov txheej txheem hu ua Super Halfautotypical mesh (SHC), uas yog qhov txuas ntxiv ntawm Halfautotypical mesh (qhov tob thiab taub ntawm cov semi-automatic mesh yog sib txawv, tab sis tsis tuaj yeem tswj tau ntawm nws tus kheej).
SHC kev hloov kho ua rau tib qho kev tsim kho laser los ua ntau yam meshes (tsoos, Autotypical, Halfautotypical). Sij hawm dhau los, cov txheej txheem sib txawv tau ua tiav (electromechanical engraving, tshuaj etching). Cov duab ntxaij tshiab tam sim no tsim tau los txhawm rau ua kom qhov hloov pauv number case thiab luam tau rau txhua qhov xim xim%-nqi tus nqi thiab cov luam tawm substrate.
Lub tswv yim thiab daim ntawv thov
Ntxiv rau qhov "tib qho thiab tib lub qhov" txoj haujlwm ntawm SHC beam waveform tes taws los piav, nws kuj tseem tuaj yeem tsim engraving meshes los ntawm superimposing nruam laser pulses, tab sis txoj kab uas hla ntawm lub teeb pom kev me dua qhov yuav tsum tau siv mesh loj (xws li txoj kab uas hla ntawm lub teeb pom kev ua haujlwm 10-15 Micron, ntawm tes loj 100 microns). Cov duab thiab cov qauv sab hauv ntawm cov txheej txheem tsim tau yog nyob ntawm cov qauv ntsuas ntawm kev hloov kho, sib tshooj thiab laser pulses (xws li cov scanning algorithm ntawm cov duab typesetting tshuab).
Cov seev cev txuas ntxiv mus nthwv dej cov lasers tau hloov pauv los yog txho-txho cov qauv tsim, thiab lawv tuaj yeem kos cov kab txaij sib tshooj me me los ua cov qhov zoo li pob zeb diamond. Nws cov kom zoo dua nyob rau hauv qhov kev daws teeb meem siab ntawm cov duab (piv txwv li, qhov kev daws teeb meem ncav cuag 1000 kab / cm thiab lub teeb pom thaj yog 15-20 microns thaum lub suab xa mus tom ntej kauj ruam loj yog 10 microns). Qhov tsis zoo yog nyob ntawm qhov poob ntawm kev tsim khoom, uas yuav tsum tau them nyiaj los ntawm kev siv ntau dua cov kev hloov kho ntau zaus (kwv yees li 1 MHz) thiab ntau lub taub hau ntau lub taub hau.
Vim tias nws lub zog siab kawg thaum lub zog tsom, qhov siab-ci fiber ntau cov lasers (200-600 watts, txuas ntxiv nthwv dej, mem tes hloov tes taws los ntsuas) lossis ultra-luv mem tes lasers tuaj yeem ua tiav cov txheej txheem engraving siab no. Dua li ntawm zinc, qhov ci ci no tseem tuaj yeem siv rau kev txua lwm cov ntaub ntawv, xws li tooj liab thiab ceramics.
Duab typesetting tshuab scanning txheej txheem algorithm yog haum rau ntau qhov kev txiav txim siab ob daim duab ob sab (luam ntawv) kev siv thiab peb- txheej (luam ntawv) kev siv. Xws li engraving RFID gravure cov menyuam.
Cov ntawv luam tawm thev naus laus zis yog qhov thev naus laus zis tshiab. Qhov kev ntsuas siab siab uas yuav tsum tau ua los ntawm cov khoom siv hluav taws xob thiab kev ua voj voos yuav teeb tsa lub rooj sib tw tshiab rau qhov tseeb thiab kev sib txawv ntawm cov ntawv luam tawm. Feem ntau cov organic thiab inorganic inks rau conductors thiab semiconductors yog pasty thiab nyuaj rau luam.
Rau cov kev tsis sib xws, tsis ntxeem tau cov txheej txheem ntawm cov inks, kev tswj kom ceev ntawm lub ntsuas ntawm tes thiab cov xov saum npoo ntawm cov pob zeb nrig yog qhov tseem ceeb. Daim duab 5C qhia qhov kev ntsuas engraving ntawm RFID tag tus kav hlau txais xov, thiab cov kab sib kis tau dav tsuas yog 10 microns.
Holmium laser thev naus laus zis ua ke nrog cov qauv kev thaij duab, txhim kho cov tsoos luam ntawv platemaking, thiab txhim kho qhov ua tau zoo, tshuaj ntsuam ntau dua, qhov raug thiab qhov zoo ntawm cov ntawv luam tawm. Sib dhos algorithms yuav siv tau los siv ntau hom laser. Kev siv cov qauv lus sib dhos laser duab waveform, qhov ntsuas ntawm ib leeg-qhov SHC cov txheej txheem tam sim no yog cov txheej txheem nrawm dua, uas tuaj yeem siv rau ntau yam substrates, inks thiab luam ntawv. Lub tswv yim tshiab engraving algorithm siv lub zog loj ntawm hluav taws xob TEM00 qhov txuas ntxiv rau kev siv cov laser ablation txoj kev mus rau ntau qhov kev siv, xws li cov anilox rollers rau thaj tsam loj ntawm cov khoom xa mus, cov khoom lag luam siab-zoo gravure luam ntawv rau luam ntawv hluav taws xob, thiab Rau 3D luam ntawv twj. Thaum ob qho tib si tsim nyog laser lub zog thiab cov tshiab engraving paub daws teeb meem tau ntsib, ultra-luv pulse laser yuav tuaj yeem txhawb thiab txhim kho cov qauv saum toj no. Qhov kev sib tw ua ntej yuav yog siv picosecond ultrashort mem tes lasers rau kev ua kom zoo cov txheej txheem ablation.
