Cov txheej txheem kev lag luam ib txwm muaj suav nrog kev ua haujlwm siab, dej tshuaj lom neeg, tshuaj tua dej ultrasonic, thiab kev siv tshuab polishing. Txawm li cas los xij, cov txheej txheem kev tu no muaj teeb meem xws li kev puas tsuaj rau cov dej hauv av, chaw ua haujlwm tsis zoo, kev ua qias tuaj, kev ntxuav tu ib feem, thiab tus nqi siab tu. Nrog rau kev siv dag zog ntawm ib puag ncig kev ua qias tuaj, cov kws tshawb fawb los ntawm ntau lub teb chaws tseem niaj hnub tsim kev txuag hluav taws xob, ib puag ncig zoo thiab siv cov tshuab kev tu vaj tse tshiab. Vim tias kev tu laser thev naus laus zis muaj ntau qhov zoo xws li kev puas tsuaj qis rau cov khoom siv substrate, kev ua kom huv siab, xoom tawm thiab tsis muaj kev ua qias tuaj, nws tau maj mam ua kom muaj txiaj ntsig thiab kev nyiam los ntawm kev kawm thiab kev lag luam. Tsis muaj kev ntseeg tias kev siv laser tu thev naus laus zis los ntxuav tu ntawm cov av ntawm cov xim hlau muaj qhov pom dav heev.
Kev tsim keeb kwm thiab cov xwm txheej tam sim no ntawm kev siv tshuab laser tu
In the 1960s, the famous physicist Schawlow first proposed the concept of laser cleaning, and then applied the technology to the repair and maintenance of ancient books. Laser cleaning has a wide range of decontamination, from thick rust layers to fine particles on the surface of objects, including the cleaning of cultural relics, the removal of rubber dirt on the surface of tire molds, the removal of silicone oil contaminants on the surface of gold films, and the microelectronics industry. High precision cleaning. Laser cleaning technology really began in 2004, and began to invest a lot of manpower and material resources to strengthen the research on laser cleaning technology. In the past decade, with the development of advanced lasers, from inefficient and bulky carbon dioxide lasers to light and compact fiber lasers; from continuous output lasers to short pulse lasers with nanoseconds or even picoseconds and femtoseconds; from visible light output To the output of long-wave infrared light and short-wave ultraviolet light... lasers have developed by leaps and bounds in terms of energy output, wavelength range, or laser quality and energy conversion efficiency. The development of lasers has naturally promoted the rapid development of laser cleaning technology. Laser cleaning technology has achieved fruitful results in theory and application.
Lub hauv paus ntsiab lus ntawm kev tu tshuab laser
Cov txheej txheem ntawm kev ntxuav lub ntsej muag laser ntxuav yog nyob ntawm cov yam ntxwv ntawm lub teeb ntsig pulses tsim los ntawm lub laser thiab yog ua raws li cov tshuaj tiv thaiv photophysical tshwm sim los ntawm kev sib cuam tshuam ntawm kev siv lub teeb ci loj, lub luv-mem tes laser thiab txheej paug sib kis. Lub ntsiab cai ntawm lub cev tuaj yeem muab coj los sau ua piv txwv hauv qab no (Daim Duab 1)
A) Lub nqaj uas tso tawm los ntawm lub laser yog nqus los ntawm cov pa phem txheej nyob rau saum npoo kom tau kho;
B) Kev rho tawm ntawm lub zog loj ua rau cov ntshav plasma sai heev (cov roj ionized tsis ruaj khov), uas ua rau muaj hluav taws xob tsis txaus;
C) Shock yoj hloov cov pa paug mus ua tawg tsam thiab raug tshem tawm;
D) Qhov dav ntawm lub teeb mem tes yuav tsum ua kom luv txaus kom tsis txhob cia ziab tshav kub uas yuav ua kev puas tsuaj rau thaj chaw kho;
(E) Kev sim qhia pom tias thaum muaj oxide rau ntawm qhov chaw hlau, ntshav tawm ntawm cov hlau saum npoo av.
Plasma tsuas yog tsim tawm thaum lub zog ceev dhau ntawm qhov ua tau, uas yog nyob ntawm txheej tsis huv lossis txheej txheej oxide raug tshem tawm. Qhov pib ua haujlwm no tseem ceeb heev rau kev ua kom huv thaum ua kom muaj kev nyab xeeb ntawm cov khoom siv substrate. Muaj tus lej thib ob rau qhov zoo li ntawm ntshav. Yog tias lub zog ntuag dhau qhov ntsuas ntawm no, lub hauv paus cov khoom yuav raug rhuav tshem. Txhawm rau txhawm rau ua kom muaj kev tu vaj tse kom zoo nyob hauv kev ua yeeb yam kom paub tseeb txog kev nyab xeeb ntawm cov khoom siv hloov pauv, lub laser qhov yuav tsum tau kho raws li qhov xwm txheej, kom lub zog ceev ntawm lub teeb mem tes yog nruj me ntsis ntawm ob qhov pib.
Sijhawm Tshaj Tawm: Lub Rau Hli-28-2020
