Laser vuam tshuab yog ib hom vuam cov cuab yeej siv feem ntau siv hauv kev tsim khoom, thiab nws tseem yog lub tshuab tseem ceeb rau kev ua cov khoom siv laser. Los ntawm txoj kev loj hlob thaum ntxov ntawm laser vuam tshuab mus rau tam sim no thev naus laus zis tau maj mam loj hlob, ntau hom vuam tshuab tau muab los, nrog rau cov khoom siv dav siv laser vuam tshuab, tus pab cuam muaj zog rau kev ua haujlwm vuam.
Vim li cas thiaj siv cov khoom siv hluav taws xob tiv thaiv thaum vuam nrog lub tes tuav laser vuam tshuab? Tes tuav laser vuam tshuab yog ib hom tshiab ntawm vuam txoj kev, feem ntau yog rau vuam nyias-walled cov ntaub ntawv thiab precision qhov chaw, uas muaj peev xwm paub qhov chaw vuam, taub qab vuam, ceg vuam, sealing vuam, thiab lwm yam., nrog rau siab sib piv, me me weld dav, thiab tshav kub me me cuam tshuam cheeb tsam, me me deformation, ceev vuam ceev, du thiab zoo nkauj weld tsis xav tau kev kho mob yooj yim, weld seam nkaus xwb tsis xav tau kev kho mob siab. seam, tsis muaj porosity, meej tswj, me me tsom qhov chaw, siab positioning raug, yooj yim rau paub automation.
1. Nws tuaj yeem tiv thaiv lub lens tsom los ntawm cov hlau vapor muaj kuab paug thiab sputtering ntawm cov kua dej
Lub shielding roj tuaj yeem tiv thaiv lub lens tsom ntawm lub laser vuam tshuab los ntawm cov hlau vapor muaj kuab paug thiab sputtering ntawm cov kua tee, tshwj xeeb tshaj yog nyob rau hauv high-power welding, vim hais tias lub ejection yuav muaj zog heev, thiab nws yog tsim nyog los tiv thaiv lub lens nyob rau lub sij hawm no.
2.Shielding roj muaj txiaj ntsig zoo hauv dissipating plasma shielding los ntawm lub zog siab laser vuam
Cov hlau vapor absorbs lub laser beam thiab ionizes rau hauv cov huab cua plasma, thiab cov roj tiv thaiv ib ncig ntawm cov hlau vapor kuj ionized vim cua sov. Yog tias muaj ntshav plasma ntau dhau lawm, lub laser beam yog me ntsis noj los ntawm plasma. Plasma muaj nyob rau ntawm qhov chaw ua haujlwm raws li lub zog thib ob, uas ua rau qhov nkag mus tob thiab qhov chaw ntawm lub pas dej weld nthuav dav.
Lub recombination tus nqi ntawm electrons yog nce los ntawm kev ua rau peb lub cev sib tsoo ntawm electrons nrog ions thiab nruab nrab atoms kom txo tau cov electron ceev nyob rau hauv lub plasma. Qhov sib zog ntawm cov atoms nruab nrab, qhov sib tsoo ntau zaus thiab siab dua tus nqi recombination; Ntawm qhov tod tes, tsuas yog cov roj tiv thaiv nrog lub zog ionization siab yuav tsis ua kom cov hluav taws xob ceev vim yog ionization ntawm cov roj nws tus kheej.
3.Cov roj tiv thaiv tuaj yeem tiv thaiv cov khoom ua haujlwm ntawm oxidation thaum vuam
Lub tshuab laser vuam yuav tsum siv ib hom roj rau kev tiv thaiv, thiab cov kev pab cuam yuav tsum tau teem nyob rau hauv xws li ib tug txoj kev uas cov roj tiv thaiv yog emissions ua ntej thiab tom qab ntawd lub laser yog emission, thiaj li tiv thaiv oxidation ntawm lub pulsed laser thaum lub sij hawm tas mus li ua. Cov roj inert tuaj yeem tiv thaiv lub pas dej molten. Thaum qee cov ntaub ntawv raug welded tsis hais txog ntawm qhov chaw oxidation, kev tiv thaiv yuav tsis raug txiav txim siab, tab sis rau feem ntau cov ntawv thov, helium, argon, nitrogen thiab lwm yam roj siv feem ntau yog siv los tiv thaiv lub workpiece los ntawm welded thaum vuam. raug oxidation.
4.Qhov tsim ntawm nozzle qhov
Lub shielding gas yog txhaj ntawm ib tug tej yam siab los ntawm lub nozzle mus txog rau saum npoo ntawm workpiece. Cov duab hydrodynamic ntawm lub nozzle thiab txoj kab uas hla ntawm lub qhov hluav taws xob yog qhov tseem ceeb heev. Nws yuav tsum yog qhov loj txaus los tsav cov roj txhaj tshuaj tiv thaiv kom npog qhov chaw vuam, tab sis txhawm rau tiv thaiv lub lens zoo thiab tiv thaiv cov hlau vapor los ntawm kev sib kis los yog hlau txaws los ntawm kev puas tsuaj rau lub lens, qhov loj ntawm lub nozzle yuav tsum raug txwv. Tus nqi ntws yuav tsum tau tswj hwm, txwv tsis pub lub laminar ntws ntawm cov roj tiv thaiv yuav ua rau muaj kev kub ntxhov, thiab cov cua yuav koom nrog hauv lub pas dej molten, nws thiaj li tsim cov pores.
Nyob rau hauv laser vuam, shielding roj yuav cuam tshuam rau weld zoo, weld zoo, weld nkag thiab nkag dav. Feem ntau, tshuab hluav taws xob tiv thaiv yuav ua rau muaj txiaj ntsig zoo ntawm cov vuam, tab sis nws kuj tseem tuaj yeem ua rau muaj qhov tsis zoo.
Lub luag haujlwm zoo:
1) Lub tshuab hluav taws xob raug cai yuav tiv thaiv lub pas dej ua kom zoo kom txo lossis tsis txhob oxidation;
2) Qhov tseeb tshuab ntawm shielding gas tuaj yeem txo qhov tawg tau tsim thaum vuam;
3) Qhov tseeb tshuab ntawm cov roj tiv thaiv tuaj yeem txhawb nqa kev sib kis ntawm lub pas dej ua ke thaum nws solidifies, ua rau cov weld zoo sib xws thiab zoo nkauj;
4) Qhov tseeb tshuab ntawm kev tiv thaiv roj tuaj yeem txo cov nyhuv shielding ntawm hlau vapor plume lossis plasma huab cua ntawm laser, thiab ua rau kom siv tau zoo ntawm laser;
5) Kev tshuab hluav taws xob raug thaiv tuaj yeem txo qhov porosity zoo.
Raws li ntev raws li hom roj av, roj ntws tus nqi, kev xaiv hom tshuab yog qhov tseeb, tuaj yeem tau txais cov txiaj ntsig zoo. Txawm li cas los xij, kev siv tsis raug ntawm cov roj tiv thaiv kuj tseem yuav ua rau muaj kev cuam tshuam tsis zoo rau vuam.
Cov teebmeem tsis zoo:
1) Tsis tsim nyog insufflation ntawm shielding roj yuav ua rau tsis zoo welds:
2) Xaiv qhov tsis ncaj ncees lawm hom roj yuav ua rau cov kab nrib pleb hauv cov vuam, thiab kuj tseem tuaj yeem ua rau txo qis hauv cov khoom siv ntawm cov vuam;
3) Xaiv qhov tsis ncaj ncees lawm cov roj tshuab ntws tuaj yeem ua rau oxidation hnyav dua ntawm qhov vuam (txawm tias tus nqi ntws loj dhau los yog me dhau), thiab tseem tuaj yeem ua rau cov hlau pas hlau ua rau muaj kev cuam tshuam loj heev los ntawm sab nraud quab yuam, uas ua rau weld ntog los yog tsis sib xws;
4) Xaiv txoj kev txhaj tshuaj tsis raug cai yuav ua rau lub vuam tsis ua tiav cov txiaj ntsig kev tiv thaiv lossis txawm tias qhov pib tsis muaj kev tiv thaiv lossis muaj kev cuam tshuam tsis zoo rau kev tsim vuam;
5) Insufflation ntawm cov roj tiv thaiv yuav muaj qee yam cuam tshuam rau cov vuam nkag, tshwj xeeb tshaj yog thaum vuam nyias daim hlau, nws yuav txo qhov kev nkag mus ntawm vuam.
Feem ntau, helium yog siv los ua cov roj tiv thaiv, uas tuaj yeem cuam tshuam cov plasma mus rau qhov loj tshaj plaws, yog li ua kom qhov tob tob thiab nce qhov vuam ceev; thiab nws yog lub teeb hauv qhov hnyav thiab tuaj yeem khiav tawm, thiab nws tsis yooj yim ua rau lub qhov hws. Tau kawg, los ntawm peb qhov kev siv vuam tiag tiag, cov nyhuv ntawm kev siv argon tiv thaiv tsis yog qhov phem.
Yog tias koj xav paub ntau ntxiv txog laser vuam, lossis xav yuav qhov zoo tshaj plaws laser vuam tshuab rau koj,thov tso cov lus ntawm peb lub vev xaib thiab email ncaj qha rau peb!
Post lub sij hawm: Feb-04-2023
