Laser kudula zitha kuchitidwa ndi kapena popanda gasi wothandizira kuchotsa zinthu zosungunuka kapena vaporized. Malinga ndi mpweya wothandiza wosiyanasiyana womwe umagwiritsidwa ntchito, kudula kwa laser kumatha kugawidwa m'magulu anayi: kudula kwa vaporization, kudula kosungunuka, kudula kwa oxidation flux ndi kudula kwapang'onopang'ono.
(1) Kudula kwa vaporization
Dongosolo lamphamvu la laser lamphamvu kwambiri limagwiritsidwa ntchito kutenthetsa ntchitoyo, zomwe zimapangitsa kuti kutentha kwa zinthuzo kukweze mwachangu ndikufikira kuwira kwazinthuzo munthawi yochepa kwambiri, zomwe ndizokwanira kupewa kusungunuka komwe kumachitika chifukwa cha kutentha. Zinthuzo zimayamba kuphwera, ndipo mbali ina ya zinthuzo imasanduka nthunzi n’kutha. Liwiro la ejection la nthunzizi ndi lachangu kwambiri. Pamene nthunzi imatulutsidwa, gawo lina la zinthuzo limawombedwa kuchokera pansi pa kagawo kakang'ono ka gasi wothandiza ngati ma ejections, kupanga phokoso pa zinthuzo. Pa vaporization kudula ndondomeko, nthunzi amachotsa anasungunuka particles ndi anatsuka zinyalala, kupanga mabowo. Panthawi ya vaporization, pafupifupi 40% yazinthuzo zimasowa ngati nthunzi, pamene 60% yazinthuzo zimachotsedwa ndi mpweya wotuluka ngati madontho osungunuka. The vaporization kutentha zinthu zambiri lalikulu kwambiri, kotero laser vaporization kudula kumafuna mphamvu yaikulu ndi kachulukidwe mphamvu. Zida zina zomwe sizingasungunuke, monga nkhuni, zida za kaboni ndi mapulasitiki ena, zimadulidwa mosiyanasiyana ndi njira iyi. Kudula kwa nthunzi ya laser kumagwiritsidwa ntchito kwambiri podula zida zachitsulo zowonda kwambiri komanso zinthu zopanda zitsulo (monga mapepala, nsalu, matabwa. , pulasitiki ndi mphira, etc.).
(2) Kusungunula kudula
Zida zachitsulo zimasungunuka ndi kutentha ndi mtengo wa laser. Pamene kachulukidwe mphamvu ya chochitika laser mtengo kuposa mtengo wina, mkati mwa zinthu kumene mtengo ndi owala amayamba nthunzi nthunzi, kupanga mabowo. Bowo loterolo likapangidwa, limakhala ngati thupi lakuda ndipo limatenga mphamvu zonse zamtengowo. Bowo laling'ono limazunguliridwa ndi khoma lachitsulo chosungunula, ndiyeno mpweya wopanda oxidizing (Ar, He, N, etc.) umapopera kudzera pa nozzle coaxial ndi mtengo. Kuthamanga kwamphamvu kwa gasi kumapangitsa kuti zitsulo zamadzimadzi kuzungulira dzenje zituluke. Pamene workpiece imayenda, Bowo laling'ono limayenda mofanana mu njira yodulira kuti likhale lodulidwa. Mtsinje wa laser umapitilira m'mphepete kutsogolo kwa chodulidwacho, ndipo zinthu zosungunula zimawomberedwa kuchoka pakudulidwako mosalekeza kapena kugunda. Laser kusungunuka kudula sikutanthauza vaporization wathunthu wa zitsulo, ndipo mphamvu chofunika ndi 1/10 yekha vaporization kudula. Kudula kwa laser kumagwiritsidwa ntchito kwambiri podula zida zina zomwe sizikhala ndi oxidized kapena zitsulo zogwira ntchito, monga chitsulo chosapanga dzimbiri, titaniyamu, aluminiyamu ndi ma aloyi ake.
(3) Oxidation flux kudula
Mfundoyi ndi yofanana ndi kudula kwa oxygen-acetylene. Imagwiritsa ntchito laser ngati gwero la kutentha kwa preheating ndi mpweya kapena mpweya wina wogwira ntchito ngati mpweya wodula. Kumbali imodzi, mpweya wowombedwa umakhala ndi oxidation reaction ndi chitsulo chodula ndikutulutsa kutentha kwakukulu kwa okosijeni; Kumbali ina, okusayidi wosungunuka ndi kusungunula zimawulutsidwa kuchokera kumalo ochitirapo kanthu kuti apange kudula muzitsulo. Popeza makutidwe ndi okosijeni pa kudula kumapanga kutentha kwakukulu, mphamvu yofunikira pakudula kwa okosijeni wa laser ndi 1/2 yokha ya kudula kosungunuka, ndipo liwiro lodula ndilokulirapo kuposa.laser nthunzi kudula ndi kusungunuka kudula.
(4) Kudula kwa fracture kumayendetsedwa
Pazinthu zowonongeka zomwe zimawonongeka mosavuta ndi kutentha, mtengo wa laser wochuluka kwambiri umagwiritsidwa ntchito poyang'ana pamwamba pa zinthu zowonongeka kuti zisungunuke pang'ono poyambira pamene zinthuzo zatenthedwa, ndiyeno kukakamiza kwina kumagwiritsidwa ntchito kuti azichita zinthu zambiri. liwiro, kuwongolera kudula kudzera mu Kutentha kwa mtengo wa laser. Zinthuzo zidzagawanika m'mizere yaing'ono. Mfundo ya ndondomekoyi kudula ndi kuti laser mtengo Kutenthetsa m'dera lapazinthu Chimaona, kuchititsa lalikulu matenthedwe gradient ndi kwambiri mapindikidwe makina m'deralo, kutsogolera mapangidwe ming'alu zinthu. Malingana ngati kutentha kwa yunifolomu kumasungidwa, mtengo wa laser ukhoza kutsogolera kupanga ming'alu ndikufalikira kumbali iliyonse yomwe mukufuna. m'mphepete mwa mizere yaying'ono. Tikumbukenso kuti ankalamulira yopuma kudula si oyenera kudula ngodya lakuthwa ndi seams ngodya. Kudula owonjezera zazikulu zotsekedwa akalumikidzidwanso si kophweka kukwaniritsa bwino. Kuthamanga kwachangu kwa fracture yoyendetsedwa ndichangu ndipo sikufuna mphamvu zambiri, mwinamwake zidzachititsa kuti pamwamba pa workpiece kusungunuke ndikuwononga m'mphepete mwa msoko wodula. Zolamulira zazikuluzikulu ndi mphamvu ya laser ndi kukula kwa malo.
Nthawi yotumiza: Oct-23-2024