Muminda yemichina yekuisa chiratidzo chelaser ye picosecond-level, kunyatsojeka ndicho chiratidzo chikuru chekuongorora mashandiro emichina. Hwaro, senzira huru yekutakura sisitimu yelaser uye zvikamu zvekunyatsojeka, zvinhu zvaro zvinokanganisa zvakananga kugadzikana kwekunyatsojeka kwekugadzirisa. Granite nesimbi yakakandwa, sezvinhu zviviri zvekutanga, zvine musiyano wakakura muhunhu hwekunyatsojeka kwekugadzirisa panguva yekugadzirisa kwe picosecond-level ultra-fine. Chinyorwa chino chichaongorora zvakadzama zvakanakira nekuipa kwezviviri izvi kuti zvipe hwaro hwesainzi hwekuvandudza michina.
Hunhu hwezvinhu hunosarudza hwaro hwekunyatsojeka
Granite idombo reigneous rakaumbwa kuburikidza nemaitiro e geological kwemazana emamiriyoni emakore. Maumbirwo aro emukati mekristaro akakora uye akafanana, ane linear expansion coefficient yakaderera se0.5-8 × 10⁻⁶/℃, yakafanana neyema alloys akanyatsogadzirwa akadai se indium steel. Hunhu uhwu hunoita kuti shanduko yaro yedimensional isanyanyo shomeka kana tembiricha ye ambient ichichinja-chinja, zvichidzivirira optical path offset uye mechanical errors zvinokonzerwa nekuwedzera kwe thermal uye contraction. Pamusoro pezvo, density ye granite yakakwira se 2.6-2.8g / cm³, iyo ine vibration absorption capacity yakanaka. Inogona kukurumidza kuderedza high-frequency vibration inogadzirwa panguva ye laser processing, ichivimbisa kugadzikana kwe optical system uye moving parts.
Zvigadziko zvesimbi zvakakandwa zvinoshandiswa zvakanyanya nekuda kwekushanda kwazvo kwekukanda uye mabhenefiti emutengo. Maumbirwo akajairika egrafite yesimbi yakakandwa yegrey inoita kuti ive nekushanda kwakati wandei kwekudzika, izvo zvinogona kutora simba rekudengenyeka rinosvika 30% kusvika 50%. Zvisinei, chiyero chekuwedzera kwekushisa kwesimbi yakakandwa chingangoita 10-12 × 10⁻⁶/℃, inova ka2-3 kupfuura granite. Pasi pekuunganidzwa kwekupisa kunokonzereswa nekugadzirisa kwenguva refu, kushanduka kwechimiro kunowanzoitika. Panguva iyi, kune kushushikana mukati mesimbi yakakandwa. Sezvo kushushikana kuchiburitswa panguva yekushandisa, kunogona kukonzera shanduko dzisingadzoreki mukutsatika uye kumira kwechigadziko.
Maitiro ekunyatsodzikisa mukugadzirisa picosecond-level
Kugadziriswa kwePicosecond laser, ine hunhu hwayo hwe ultra-short pulse, inogona kuita kuti michina ishande zvakanaka padanho re sub-micron kana kunyange padanho re nanometer, asi inewo zvinodiwa zvakasimba kuti michina igare zvakanaka. Granite base, ine chimiro chayo chemukati chakasimba, inogona kudzora vibration response padanho re sub-micron pasi pe high-frequency laser impact, ichichengetedza kunyatsorongeka kwe laser focus. Data rakayerwa rinoratidza kuti muchina we laser marking une granite base uchiri kuchengetedza mutsetse wakafara mukati me ±0.5μm mushure me picosecond processing inoenderera mberi kwemaawa masere.
Kana hwaro hwesimbi yakakandwa hukavhenekerwa ne high-frequency vibration ye picosecond laser, chimiro chemukati chegorosi chinozoneta ne microscopic nekuda kwekugumburwa kunogara kuchiitika, zvichikonzera kudzikira kwekuoma kwehwaro. Data rekutarisa kubva kune rimwe bhizinesi rekugadzira semiconductor rinoratidza kuti mushure memwedzi mitanhatu yekushanda, chiyero chekudzikiswa kwekugadzirisa kwemidziyo ine mabhesi esimbi yakakandwa chinosvika 12%, zvichiratidzwa zvakanyanya sekuwedzera kwekuoma kwemipendero yemitsetse uye kuwedzera kwezvikanganiso zvekuisa. Panguva imwecheteyo, simbi yakakandwa inonzwa hunyoro hwezvakatipoteredza. Kushandiswa kwenguva refu kunowanzoita ngura, zvichiwedzera kukurumidza kuora kwekunyatsojeka.
Kusimbiswa kwemusiyano wekushanda mumashandisirwo anoshanda
Mubasa rekugadzirisa zvikamu zvemagetsi zve3C, kambani inozivikanwa yakaita bvunzo yekuenzanisa mashandiro emidziyo yemhando mbiri dzezvigadziko zvemidziyo. Mukuyedza, michina miviri yekutarisa laser yepicosecond ine chimiro chakafanana yakashongedzwa nematombo egranite nesimbi yakakandwa kuti icheke uye ichere girazi rezviratidziro zvefoni nehupamhi hwe0.1mm. Mushure memaawa mazana maviri ekugadzirisa nguva dzose, mwero wekuchengetedza kururama kwekugadzirisa kwemidziyo yegranite hwaive 98.7%, nepo yemidziyo yesimbi yakakandwa yaive 86.3% chete. Mipendero yegirazi rakagadziriswa neyazvino yakaratidza zvikanganiso zvakajeka zvesawtooth.
Mukugadzirwa kwezvinhu zvemuchadenga, data renguva refu rekutarisa reimwe sangano rekutsvagisa rinoratidza musiyano wacho nenzira yakajeka: Muchina wekuisa chiratidzo welaser une granite base une cumulative attenuation yekunyatsojeka isingasviki 3μm mukati mehupenyu hwebasa hwemakore mashanu; Zvisinei, mushure memakore matatu, kukanganisa kwekugadzirisa kwemidziyo yesimbi yakakandwa kunokonzerwa nekushanduka kwebase kwapfuura mwero wekushanda we ±10μm, uye chiyero chemuchina wese wekururamisa kunofanira kuitwa.
Mazano ekuvandudza sarudzo
Kana mabhizinesi akatora kugadzirisa kwakasimba uye kwakanyatsorongeka kwenguva refu sezvinodiwa zvikuru, kunyanya muminda yakaita semachipisi e semiconductor uye zvikamu zve optical precision, ma granite bases, ane kugadzikana kwavo kwakanyanya kwekupisa uye kuramba kutenderera, isarudzo yakanaka yekuvandudza. Kunyangwe mutengo wayo wekutanga wekutenga wakakwira ne30% kusvika 50% kupfuura wesimbi yakakandwa, kubva pamaonero emutengo wehupenyu hwese, kudzikira kwekugadziriswa kwekunyatsojeka uye nguva yekushanda kwemidziyo yekugadzirisa zvinogona kuwedzera zvakanyanya mabhenefiti ese. Kune zviitiko zvekushandisa zvine zvinodiwa zvishoma zvekugadzirisa nekunyatsojeka uye bhajeti shoma, mabhesi esimbi yakakandwa anogona kushandiswa semhinduro yekuchinja pasi pepfungwa yekudzora zvine musoro nharaunda yekushandisa.
Nekuenzanisa zvakarongeka hunhu hwekudzikisa kwakarurama kwegranite nesimbi yakakandwa mukugadzirisa kwepicosecond-level, zvinogona kuonekwa kuti kusarudza zvinhu zvepasi zvakakodzera idanho guru rekuvandudza kururama kwekugadzirisa uye kuvimbika kwemuchina wekuisa laser. Makambani anofanira, zvichienderana nezvinodiwa netekinoroji yavo uye kufunga nezvemutengo, kuita sarudzo dzesainzi pachirongwa chekuvandudza base kuti vape hwaro hwakasimba hwezvigadzirwa zvepamusoro-soro.
Nguva yekutumira: Chivabvu-22-2025