Kusintha kwa laser ndikofala kwambiri m'moyo wathu watsiku ndi tsiku ndipo ambiri aife timazidziwa bwino. Nthawi zambiri mumamva kuti mawu akuti nanosecond laser, picosecond laser, femtosecond laser. Onse ndi a ultrafast laser. Koma kodi mukudziwa kusiyanitsa iwo?
Choyamba, tiyeni tiwone zomwe "zachiwiri" izi zikutanthawuza.
1 nanosecond = 10
-9 chachiwiri
1 picosecond = 10
-12 chachiwiri
1 mkazi wachiwiri = 10
-15 chachiwiri
Chifukwa chake, kusiyana kwakukulu pakati pa laser ya nanosecond, laser picosecond ndi femtosecond laser kuli pa nthawi yawo.
Tanthauzo la utlrafast laserKalekale, anthu anayesa kugwiritsa ntchito laser kuchita micromachining. Komabe, popeza laser yachikhalidwe imakhala ndi m'lifupi mwake komanso kutsika kwa laser, zida zomwe zimayenera kukonzedwa ndizosavuta kusungunuka ndikupitiriza kusanduka nthunzi. Ngakhale mtengo wa laser ukhoza kuyang'ana pa malo ang'onoang'ono a laser, kutentha kwazinthu kumakhalabe kwakukulu, komwe kumachepetsa kulondola kwa kukonza. Kuchepetsa kutentha kokha kumatha kupititsa patsogolo kukonzanso.
Koma pamene ultrafast laser ntchito pa zipangizo, zotsatira processing ndi kusintha kwakukulu. Pamene mphamvu ya pulse ikukwera kwambiri, mphamvu zambiri zimakhala zamphamvu kwambiri kuti zithetse magetsi akunja. Popeza kuti kugwirizana pakati pa laser ultrafast ndi zipangizo ndizofupikitsa, ion yatulutsidwa kale pazinthu zakuthupi isanapereke mphamvu kuzinthu zozungulira, kotero palibe kutentha komwe kudzabweretsedwe ku zipangizo zozungulira. Choncho, ultrafast laser processing amatchedwanso ozizira processing.
Pali zosiyanasiyana ntchito za ultrafast laser kupanga mafakitale. Pansipa titchula ochepa:
1.Kubowola dzenjePamapangidwe a board board, anthu amayamba kugwiritsa ntchito maziko a ceramics kuti asinthe maziko apulasitiki achikhalidwe kuti azindikire kutentha kwabwino. Kuti mulumikizane ndi zida zamagetsi, mabowo ang'onoang'ono masauzande a μm amafunikira kubowoleredwa pa bolodi. Choncho, kusunga maziko olimba popanda kusokonezedwa ndi kulowetsedwa kwa kutentha pakubowola dzenje kwakhala kofunika kwambiri. Ndipo picosecond lase ndiye chida choyenera.
Picosecond laser imazindikira kubowola kwa dzenje pobowola ndikupangitsa kuti dzenjelo likhale lofanana. Kuphatikiza pa board board, laser ya picosecond imagwiranso ntchito pobowola mabowo apamwamba kwambiri pafilimu yopyapyala ya pulasitiki, semiconductor, filimu yachitsulo ndi safiro.
2.Kulemba ndi kudulaMzere ukhoza kupangidwa ndi kusanthula kosalekeza kuti ukunde kugunda kwa laser. Izi zimafunikira kusanthula kwakukulu kuti mulowe mkati mwazoumba mpaka mzerewo ufike pa 1/6 ya makulidwe azinthu. Kenaka mulekanitse gawo lililonse kuchokera ku maziko a ceramics pamodzi ndi mizere iyi. Kulekanitsa kotereku kumatchedwa scribing.
Njira ina yolekanitsa ndi pulse laser ablation cutting. Zimafunika kuchotsa zinthuzo mpaka zinthuzo zitadulidwa.
Pakulemba ndi kudula pamwambapa, laser ya picosecond ndi laser ya nanosecond ndizomwe mungasankhe.
3.Coating kuchotsaNtchito ina ya micromachining ya ultrafast laser ndikuchotsa zokutira. Izi zikutanthauza kuchotsa ndendende zokutira popanda kuwononga kapena kuwononga pang'ono zida za maziko. The ablation akhoza kukhala mizere angapo micrometer m'lifupi kapena sikelo yaikulu angapo lalikulu masentimita angapo. Popeza m'lifupi mwa chophimbacho ndi chochepa kwambiri kusiyana ndi m'lifupi mwake, kutentha sikudzasunthira kumbali. Izi zimapangitsa laser ya nanosecond kukhala yoyenera kwambiri.
Ultrafast laser ili ndi kuthekera kwakukulu komanso tsogolo labwino. Imakhala ndi zinthu zosafunikira pambuyo pokonza, kusakanikirana kosavuta, kukonza bwino kwambiri, kugwiritsa ntchito zinthu zochepa, kuwononga chilengedwe. Lakhala chimagwiritsidwa ntchito galimoto, zamagetsi, chamagetsi, makina kupanga, etc .. Kuti ultrafast laser kuthamanga ndendende m'kupita kwa nthawi, kutentha kwake kuyenera kusamalidwa bwino. S&A Teyu CWUP mndandandakunyamula madzi ozizira ndi abwino kwambiri kuziziritsa ma lasers othamanga kwambiri mpaka 30W. Magawo a laser chiller awa amakhala ndi mulingo wapamwamba kwambiri wa ± 0.1 ℃ ndikuthandizira kulumikizana kwa Modbus 485. Ndi mapaipi opangidwa bwino, mwayi wopanga kuwira kwakhala wocheperako, zomwe zimachepetsa mphamvu ya laser yofulumira kwambiri.
