Tom qab txhua yam polishing ntawm stainless hlau nto, yog tias tsis muaj lwm yam kev kho mob, nto ntawm lub matrix tshiab vim yog kev sib cuag nrog oxygen nyob rau hauv cov huab cua, los yog yuav tsim ib tug nyias txheej ntawm oxide zaj duab xis txheej. Thiab tom qab siv electrolytic los yog tshuaj polishing, qee qhov tom qab kev kho mob passivation los tsim cov yeeb yaj kiab passivation. Yog tias kev kho mob passivation tsis tau ua tiav, yuav muaj txheej nyias ntawm oxide zaj duab xis ib yam. Yog li hais lus, cov hlau thiab cov pa oxygen hauv huab cua hauv kev sib cuag nrog cov dav dav yuav tsim ib zaj duab xis oxide. Tsuas yog qee qhov pom thiab qee qhov tsis yog! Oxide daim tawv nqaij yog cov khoom siv corrosion tsim los ntawm oxidation ntawm hlau thaum kub kub, muaj ferrous oxide, ferric oxide, hlau tetraoxide thiab ferric oxide. Oxidized ntawm daim tawv nqaij yuav ua rau kom cov corrosion ntawm cov hlau, yog li qhov loj ntawm thaj tsam ntawm daim tawv nqaij oxide, qhov ceev ntawm corrosion ntawm cov hlau substrate, qhov loj dua corrosion.
Tsim cov oxide zaj duab xis xav tshem tawm yog qhov teeb meem nyuaj, kev tu ib txwm siv sijhawm thiab siv zog ua haujlwm, muaj qee yam ntawm cov khoom siv, kev tu tsis yooj yim heev, thiab lub tshuab laser xeb tshem tawm tuaj yeem ntxuav cov hlau tsis huv. ntawm oxidized txheej, roj thiab lwm yam, vim hais tias nws yog ib tug tsis sib cuag, uas tsis yog-abrasive tu txoj kev, yog li nws yuav tsis ua kev puas tsuaj rau saum npoo ntawm lub workpiece!
Lub hauv paus ntsiab lus ntawm kev tu lub laser yog siv cov high-frequency high-zog laser pulse irradiation ntawm lub nto ntawm lub workpiece, txheej txheej yuav instantly absorbed los ntawm lub focused laser zog, thiaj li hais tias cov nto ntawm cov roj stains, xeb me ntsis los yog. coatings tshwm sim tam sim ntawd yuav tsum tau tev tawm, high-speed thiab zoo tshem tawm ntawm nto adhesions los yog nto txheej txheej ntawm tu txoj kev, thiab lub luag hauj lwm ntawm lub laser pulse ntawm lub sij hawm luv luv ntawm lub sij hawm nyob rau hauv qhov tsim nyog tsis yuav tsis ua mob rau cov hlau substrate.
