Kuv ntseeg tias txhua tus tau nyeem ntau yam kev qhia txog kev ua haujlwm ntawm laser npav tshuab. Tam sim no, nws feem ntau lees paub tias ob hom yog thermal ua thiab ua haujlwm txias. Cia peb saib lawv nyias:
Thawj hom "thermal processing": nws muaj lub teeb laser nrog lub zog ntau dua (nws yog lub zog muaj zog txaus), irradiated rau saum npoo ntawm cov khoom yuav tsum tau ua, qhov saum npoo ntawm cov khoom absorbs lub zog laser, thiab generates ib tug thermal excitation txheej txheem nyob rau hauv lub irradiated cheeb tsam, yog li tsa qhov kub ntawm cov khoom nto (los yog txheej), uas ua rau metamorphosis, melting, ablation, evaporation, thiab lwm yam. tshwm sim.
Hom thib ob ntawm "kev ua haujlwm txias": nws muaj lub zog hnyav heev (ultraviolet) photons, uas tuaj yeem tawg cov tshuaj lom neeg hauv cov ntaub ntawv (tshwj xeeb tshaj yog cov khoom siv organic) lossis cov xov xwm nyob ib puag ncig, ua rau cov txheej txheem tsis thermal puas rau cov ntaub ntawv. Cov txheej txheem txias no muaj qhov tseem ceeb tshwj xeeb hauv kev ua laser npav, vim tias nws tsis yog thermal ablation, tab sis qhov txias txias uas tsis ua rau "thermal puas" cov kev mob tshwm sim thiab rhuav tshem cov tshuaj lom neeg, yog li nws tsis muaj teeb meem rau txheej sab hauv thiab nyob ze. thaj chaw ntawm cov txheej txheem nto. Ua kom sov lossis thermal deformation thiab lwm yam teebmeem.
Post lub sij hawm: Feb-27-2023
