Qee txoj hauv kev los txo cov teebmeem thermal ntawm laser npav tshuab suav nrog:
optimize lub tsom xam ntawm lub laser beam, yuav ua rau lub zog ntau concentrated, thiaj li hais tias cov txheej txheem cov khoom gasification, es tsis txhob tsim lub phenomenon ntawm ablation. Tshwj xeeb tshaj yog: koj tuaj yeem siv lub focal ntev ntawm lub lens, thiab siv me ntsis loj dua cov kab hluav taws xob nthuav dav daim iav txhawm rau txhawm rau lub kaum sab xis.
Kev siv ntawm M2 coefficient qis dua laser, uas yog, cov nqaj zoo yog lub laser zoo dua. M2 coefficient yog qhov zoo ntawm cov nqaj zoo, peb siv CO2 RF raj thiab yuav pom tau tias cov khoom siv RF tuaj txawv teb chaws yog qhov zoo, thaum lub raj RF hauv tsev lossis iav raj cim cov nyhuv tsis zoo, yuav muaj xim dub lossis daj thiab lwm yam tshwm sim ntawm laser ablation. Yog li peb yuav tsum tau sim xaiv qhov qis dua M2 coefficient ntawm laser, uas yog, lub nqaj zoo dua.
Kev siv cov laser wavelength luv, cia peb hais tias qee cov neeg xav cim hauv PP, PE cov ntaub ntawv, yog tias koj siv 9.3um laser txheeb ze rau 10.6um laser, koj tuaj yeem txiav cov khoom nyob ib puag ncig ntawm thermal cuam tshuam thiab kev puas tsuaj, cov nyhuv ua tau zoo dua.
Kev siv lub tshuab nqaim dav dav laser: cia peb hais tias peb siv cov pa nanosecond qib ntawm 1064nm laser, ua kom cov iav yuav luag tsis yooj yim kom paub, vim tias cov nyhuv thermal loj dhau, lub iav yog yooj yim tawg los yog ntug tsis. du. Tab sis yog tias peb siv picosecond 1064nm laser, koj tuaj yeem txo cov nyhuv thermal, ua ke nrog Bessel txiav lub taub hau, koj tuaj yeem txiav cov iav zoo heev.
txo qhov zaus ntawm PWM teeb liab, txo qhov zaus yuav indirectly nce lub ncov lub zog ntawm lub laser, lub ncov hwj chim yog siab, lub sij hawm no cim yuav ua rau cov khoom vaporization, es tsis ablation. Ntawm chav kawm, lub sij hawm no koj yuav tsum tau ua kom haum rau qhov tsim nyog marking ceev.
kev kho mob ua ntej ntawm cov ntaub ntawv ua ntej kos npe, xws li tshuaj tsuag oxidizers lossis siv cov tshuaj tua kab mob, kom cov ntaub ntawv saum npoo yooj yim dua rau laser npav, yog li txo cov nyhuv thermal.
kev kho kom haum ntawm covlaser marking tshuablub zog thiab cim ceev, txo qhov poob ntawm laser ntawm cov khoom, yog li txo cov nyhuv thermal.
Kev siv cov iav zoo dua, galvanometer reflector lo ntsiab muag, sib txuas cov iav, beam-expanding mirrors, thiab lwm yam kev kho qhov muag lo ntsiab muag, kom nws cov laser kis tau tus nqi yog txhim khu kev qha, yog li txo cov thermal nyhuv ntawm lub lens vim poob ntawm lub teeb laser. hauv optical lens.
Kev siv lub lens txheej yuav tsum tau ua raws li lub wavelength ntawm lub laser, cia peb hais tias qee cov neeg siv khoom siv lub laser yog 9.3um laser, tab sis lawv nyob rau hauv kev yuav khoom ntawm lub teb lo ntsiab muag, beam expanding daim iav, thiaj li yuav txuag tau nyiaj, kev yuav khoom. ib tug zoo tib yam 10.6um laser nrog lub teb lo ntsiab muag, beam expanding daim iav, tab sis no txheej ntawm lub lens, lub laser transmittance ntawm 9.3um yuav me me tshaj 1 feem pua, uas yog, muaj ntau tshaj li 1 feem pua ntawm lub zog poob nyob rau hauv lub lens, cov energies no yuav tsim thermal teebmeem nyob rau hauv lub lens, ua rau lub lens kub.
Muaj qee qhov laj thawj uas tseem yuav ua rau cov nyhuv thermal ntawm lub laser, tsis muaj ntau dhau los rov ua dua (ntau yog vim li cas rau tus sau lub peev xwm xav tau, txais tos ntxiv rau hauv cov lus keeb kwm yav dhau).
