Yuav ua li cas xaiv qhov zoo tshaj plaws Gas Mixtures rau koj Laser Vuam?
Hom, Cov txiaj ntsig, thiab kev siv
Taw qhia:
Yam tseem ceeb uas yuav tsum paub ua ntej dhia hauv
Laser welding yog ib txoj kev vuam zoo uas siv lub laser beam kom yaj cov khoom ntawm lub workpiece thiab tom qab ntawd ua cov vuam tom qab txias. Hauv laser vuam, roj ua lub luag haujlwm tseem ceeb. Cov roj tiv thaiv tsis tsuas yog cuam tshuam rau vuam seam tsim, vuam seam zoo, vuam seam nkag, thiab nkag dav tab sis tseem cuam tshuam ncaj qha rau qhov zoo thiab kev ua haujlwm ntawm laser vuam.Dab tsi gases xav tau rau laser vuam?Kab lus no yuav ua tib zoo saib rau qhov tobqhov tseem ceeb ntawm laser vuam gases, cov gases siv, thiab lawv ua dab tsi.Peb kuj yuav pom zooqhov zoo tshaj plaws laser vuam tshuabrau koj xav tau.
Thaum lub sij hawm lub laser vuam txheej txheem, ib tug high-zog-density laser beam yog teem rau lub vuam cheeb tsam ntawm lub workpiece, ua rau instantaneous melting ntawm cov khoom nto ntawm lub workpiece. Gas yuav tsum tau thaum lub sij hawm laser vuam los tiv thaiv qhov vuam cheeb tsam, tswj qhov kub thiab txias, txhim kho qhov zoo ntawm vuam, thiab tiv thaiv qhov muag qhov muag. Xaiv cov roj uas tsim nyog thiab cov khoom siv tsis zoo yog qhov tseem ceeb hauv kev ua kom muaj txiaj ntsig zoo thiab ruaj khov laser vuam txheej txheem thiab tau txais cov txiaj ntsig zoo welding.
1. Kev tiv thaiv qhov chaw vuam
Thaum lub sij hawm lub laser vuam txheej txheem, lub weld cheeb tsam yog raug rau sab nraud ib puag ncig thiab yog yooj yim cuam tshuam los ntawm oxygen thiab lwm yam gases nyob rau hauv cov huab cua.
Oxygen ua rau cov tshuaj tiv thaiv oxidation uas tuaj yeem ua rau txo cov vuam zoo, thiab tsim cov pores thiab suav nrog. Lub vuam tuaj yeem tiv thaiv tau zoo los ntawm cov pa paug los ntawm kev muab cov pa uas tsim nyog, feem ntau yog cov roj inert xws li argon, mus rau qhov chaw vuam.
2. Thaum tshav kub kub tswj
Gas xaiv thiab muab khoom tuaj yeem pab tswj qhov kub ntawm qhov chaw vuam. Los ntawm kev kho tus nqi ntws thiab hom roj, qhov cua txias ntawm qhov chaw vuam tuaj yeem cuam tshuam. Qhov no yog ib qho tseem ceeb los tswj lub tshav kub cuam tshuam (HAZ) thaum lub sij hawm vuam thiab txo thermal distortion.
3. Txhim kho Weld Zoo
Qee cov pa roj carbon monoxide, xws li oxygen lossis nitrogen, tuaj yeem txhim kho qhov zoo thiab kev ua haujlwm ntawm welds. Piv txwv li, ntxiv cov pa oxygen tuaj yeem txhim kho qhov nkag mus ntawm qhov vuam thiab ua kom cov vuam ceev, thaum tseem cuam tshuam rau cov duab thiab qhov tob ntawm qhov vuam.
4. Gas txias
Nyob rau hauv laser vuam, qhov vuam cheeb tsam feem ntau cuam tshuam los ntawm qhov kub thiab txias. Siv lub tshuab cua txias tuaj yeem pab tswj qhov kub ntawm qhov chaw vuam thiab tiv thaiv kom tsis txhob kub dhau. Qhov no yog qhov tseem ceeb los txo cov kev ntxhov siab thermal hauv thaj chaw vuam thiab txhim kho vuam zoo.
5. Kev tiv thaiv roj av Optical Systems
Lub teeb laser yog tsom rau ntawm qhov chaw vuam los ntawm kev kho qhov muag. Thaum lub sij hawm soldering txheej txheem, cov khoom molten thiab aerosols generated yuav kis tau optical Cheebtsam. Los ntawm kev qhia cov pa roj rau hauv qhov chaw vuam, qhov kev pheej hmoo ntawm kev sib kis tau raug txo thiab lub neej ntawm qhov kho qhov muag txuas ntxiv.
Hauv laser vuam, cov roj tuaj yeem cais cov huab cua ntawm cov phaj vuam thiab tiv thaiv nws los ntawm kev ua pa nrog huab cua. Ua li no, vuam nto ntawm cov hlau phaj yuav ua kom dawb thiab zoo nkauj dua. Kev siv roj kuj tseem tiv thaiv lub lens ntawm vuam plua plav. Feem ntau, cov roj hauv qab no yog siv:
1. Cov roj tiv thaiv:
Shielding gases, qee zaum hu ua "inert gases," ua lub luag haujlwm tseem ceeb hauv cov txheej txheem laser vuam. Laser vuam txheej txheem feem ntau siv inert gases los tiv thaiv lub vuam pas dej ua ke. Feem ntau siv cov roj tiv thaiv hauv laser vuam feem ntau suav nrog argon thiab neon. Lawv lub cev thiab tshuaj lom neeg cov khoom sib txawv, yog li lawv cov teebmeem ntawm cov vuam kuj sib txawv.
·Argon: Argon yog ib qho ntawm feem ntau siv inert gases. Nws muaj qib siab ntawm ionization nyob rau hauv qhov kev txiav txim ntawm lub laser, uas tsis yog qhov tsim nyog rau kev tswj cov txheej txheem ntawm cov huab plasma, uas yuav muaj qee yam cuam tshuam rau kev siv cov lasers zoo. Qhov xwm txheej tsis zoo ntawm argon ua kom nws tawm ntawm cov txheej txheem soldering, thaum nws tseem dissipates cua sov zoo, pab tswj qhov kub thiab txias hauv cheeb tsam soldering.
·Neon: Neon feem ntau yog siv los ua cov roj inert, zoo ib yam li argon, thiab feem ntau yog siv los tiv thaiv thaj chaw vuam los ntawm cov pa oxygen thiab lwm cov pa phem nyob rau hauv ib puag ncig sab nraud. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias neon tsis haum rau txhua daim ntawv thov laser vuam. Nws yog tsuas yog siv rau qee qhov tshwj xeeb vuam cov haujlwm, xws li vuam cov ntaub ntawv tuab dua lossis thaum xav tau qhov sib sib zog nqus weld seams.
2. Pab Gas:
Thaum lub sij hawm laser vuam txheej txheem, ntxiv rau lub ntsiab tiv thaiv roj, auxiliary gases kuj siv tau los txhim kho vuam kev ua tau zoo thiab zoo. Cov hauv qab no yog qee cov pa roj carbon monoxide uas siv hauv laser vuam:
· Oxygen: Oxygen feem ntau yog siv los ua cov pa pab cuam thiab tuaj yeem siv los ua kom sov thiab vuam qhov tob thaum vuam. Ntxiv cov pa tuaj yeem ua rau cov vuam ceev thiab nkag mus, tab sis yuav tsum tau ua tib zoo tswj kom tsis txhob muaj cov pa ntau dhau ua rau muaj teeb meem oxidation.
· Nitrogen: Nitrogen kuj tseem siv tau los ua cov pa pab cuam hauv laser vuam. Lub zog ionization ntawm nitrogen yog nruab nrab, siab dua argon thiab qis dua hydrogen. Lub ionization degree feem ntau yog nyob rau hauv qhov kev txiav txim ntawm lub laser. Nws tuaj yeem txo qhov tsim ntawm cov huab cua plasma zoo dua, muab cov welds zoo dua thiab zoo li qub, thiab txo qhov cuam tshuam ntawm oxygen ntawm cov welds. Nitrogen kuj tuaj yeem siv los tswj qhov kub ntawm qhov chaw vuam thiab txo qhov tsim ntawm npuas thiab pores.
· Hydrogen / Hydrogen Mixture: Hydrogen txhim kho qhov zoo ntawm welds thiab txo qhov tsim ntawm porosity. Kev sib xyaw ntawm argon thiab hydrogen yog siv rau hauv qee qhov kev siv tshwj xeeb, xws li vuam stainless hlau. Cov ntsiab lus hydrogen ntawm qhov sib tov feem ntau yog li ntawm 2% mus rau 15%.
·Helium: Helium feem ntau yog siv rau high-power laser vuam vim hais tias nws muaj thermal conductivity tsawg thiab tsis yooj yim ionized, cia lub laser mus smoothly thiab lub beam zog mus txog lub workpiece nto yam tsis muaj teeb meem. Conducive rau siab zog welding. Helium kuj tseem siv tau los txhim kho vuam zoo thiab tswj vuam kub. Qhov no yog qhov zoo tshaj plaws shielding gas siv nyob rau hauv laser vuam, tab sis nws kuj kim heev.
3. Cua txias:
Cov roj cua txias feem ntau yog siv thaum lub sij hawm laser vuam los tswj qhov kub ntawm qhov chaw vuam, tiv thaiv overheating, thiab tswj vuam zoo. Cov hauv qab no yog qee qhov kev siv cua txias cua txias:
·Dej: Dej yog qhov nruab nrab cua txias feem ntau siv los ua kom txias laser generators thiab laser vuam tshuab kho qhov muag. Dej txias tshuab tuaj yeem pab tswj qhov kub thiab txias ntawm lub tshuab hluav taws xob laser thiab cov khoom siv kho qhov muag kom ntseeg tau tias laser beam stability thiab kev ua tau zoo.
·Atmospheric gases: Hauv qee cov txheej txheem laser vuam, ambient atmospheric gases tuaj yeem siv los ua kom txias. Piv txwv li, nyob rau hauv qhov kho qhov muag system ntawm lub tshuab hluav taws xob laser, cov pa roj cua ib puag ncig tuaj yeem muab cov nyhuv txias.
·Inert gases: Inert gases xws li argon thiab nitrogen tuaj yeem siv los ua cua txias. Lawv muaj cov thermal conductivity qis dua thiab tuaj yeem siv los tswj qhov kub thiab txias ntawm thaj chaw vuam thiab txo qhov cuam tshuam ntawm tshav kub (HAZ).
·Kua Nitrogen: Cov kua nitrogen yog qhov tsis tshua muaj qhov kub thiab txias nruab nrab uas tuaj yeem siv rau lub zog laser vuam tsis tshua muaj zog. Nws muab cov nyhuv txias txias zoo heev thiab ua kom tswj tau qhov kub thiab txias hauv qhov chaw vuam.
4. Sib xyaw Gas:
Cov roj sib tov feem ntau yog siv los ua vuam kom zoo rau ntau yam ntawm cov txheej txheem, xws li vuam ceev, qhov tob tob, thiab arc stability. Muaj ob lub ntsiab ntawm cov roj sib tov: binary thiab ternary sib tov.
1. Binary Gas Mixtures:
·Argon + Oxygen: Ntxiv me me ntawm cov pa rau argon txhim kho arc stability, refines lub pas dej ua ke, thiab ua kom vuam ceev. Qhov sib tov no feem ntau yog siv rau vuam carbon steel, low-alloy steel, thiab stainless hlau.
·Argon + Carbon Dioxide: Qhov sib ntxiv ntawm CO₂ rau argon nce vuam lub zog thiab corrosion kuj thaum txo cov spatter. Qhov sib tov no feem ntau siv rau vuam carbon steel thiab stainless hlau.
·Argon + Hydrogen: Hydrogen nce arc kub, txhim kho vuam ceev, thiab txo cov vuam tsis xws luag. Nws yog tshwj xeeb tshaj yog pab tau rau vuam nickel-raws li alloys thiab stainless hlau.
2. Ternary Gas Mixtures:
·Argon + Oxygen + Carbon Dioxide: Qhov sib tov no sib xyaw cov txiaj ntsig ntawm ob qho tib si argon-oxygen thiab argon-CO₂ cov khoom sib xyaw. Nws txo spatter, txhim kho weld pas dej fluidity, thiab txhim kho weld zoo. Nws yog dav siv rau vuam ntau thicknesses ntawm carbon steel, low-alloy steel, thiab stainless hlau.
·Argon + Helium + Carbon Dioxide: Qhov sib tov no pab txhim kho arc stability, ua kom sov lub pas dej ua ke, thiab txhim kho vuam ceev. Nws yog siv nyob rau hauv luv luv-circuit arc vuam thiab hnyav vuam daim ntaub ntawv, muab zoo tswj oxidation.
Kev xaiv roj hauv ntau daim ntawv thov
Nyob rau hauv ntau daim ntawv thov ntawm laser vuam, xaiv cov roj uas tsim nyog yog qhov tseem ceeb, vim tias cov roj sib txawv tuaj yeem tsim cov vuam sib txawv, ceev, thiab ua haujlwm zoo. Nov yog qee cov lus qhia los pab koj xaiv cov roj zoo rau koj daim ntawv thov tshwj xeeb:
Hom Welding Material:
Cov ntaub ntawv sib txawv yuav tsum muaj cov roj sib txawv. Feem ntau hais lus.
·Stainless hlau feem ntau siv argon lossis argon / hydrogen sib tov.
·Aluminium thiab aluminium alloys feem ntau siv cov ntshiab argon.
·Titanium alloys feem ntau siv nitrogen.
·High-carbon steels feem ntau siv cov pa oxygen ua cov pa roj.
Vuam Ceev thiab Pentration:
Yog tias qhov vuam nrawm dua lossis qhov sib sib zog nqus vuam yuav tsum tau, cov roj sib xyaw tuaj yeem hloov kho. Ntxiv cov pa oxygen feem ntau txhim kho kev nrawm thiab nkag mus, tab sis yuav tsum tau ua tib zoo tswj kom tsis txhob muaj teeb meem oxidation.
Weld Quality:
Qee qhov kev sib xyaw ua ke roj tuaj yeem txhim kho qhov zoo thiab zoo ntawm cov welds. Piv txwv li, nitrogen tuaj yeem muab qhov zoo nkauj zoo nkauj thiab qhov chaw zoo.
Pore Thiab Bubble Control:
Rau cov ntawv thov uas xav tau cov welds zoo heev, tshwj xeeb yuav tsum tau them nyiaj rau kev tsim cov pores thiab npuas. Kev xaiv roj kom raug tuaj yeem txo qhov kev pheej hmoo ntawm cov teeb meem no.
Kev Tswj Xyuas Thaum Tshav Kub Kub Kub (HAZ):
Nyob ntawm cov khoom raug ntxuav, cov khoom pov tseg uas yuav tsum tau muaj cov txheej txheem tshwj xeeb yuav raug tsim tawm thaum lub sijhawm ntxuav. Qhov no tuaj yeem ntxiv rau tag nrho cov nqi ntawm cov txheej txheem laser tu.
Cov khoom siv thiab cov nqi txiav txim siab:
Kev xaiv roj kuj cuam tshuam los ntawm cov khoom siv thiab cov nqi. Qee cov pa roj yuav xav tau cov khoom siv tshwj xeeb lossis cov nqi siab dua.
Rau cov kev siv tshwj xeeb, nws raug nquahu kom ua haujlwm nrog tus kws ua haujlwm vuam lossis tus kws tshaj lij laser vuam cov cuab yeej tsim khoom kom tau txais cov lus qhia tshaj lij thiab txhim kho cov txheej txheem vuam. Qee qhov kev sim thiab kev ua kom zoo yog feem ntau yuav tsum tau ua ntej kev sib xyaw roj zaum kawg raug xaiv. Nyob ntawm daim ntawv thov tshwj xeeb, kev sib xyaw ua ke ntawm cov roj sib txawv thiab cov kev ntsuas tuaj yeem raug sim kom nrhiav tau qhov zoo tshaj plaws vuam tej yam kev mob.
Tej Yam Koj Yuav Tsum Paub Txog: Handheld Laser Vuam
Pom zoo Laser Vuam Tshuab
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Muaj peev xwm & Wattage rau ntau yam kev siv vuam
Lub 2000W handheld laser vuam tshuab yog tus cwj pwm los ntawm lub tshuab me me tab sis sparkling vuam zoo.
Qhov chaw ruaj khov fiber ntau laser thiab txuas fiber ntau cable muab kev nyab xeeb thiab ruaj khov laser beam xa.
Nrog lub zog siab, lub laser vuam keyhole yog qhov zoo tshaj plaws thiab ua kom lub vuam sib txuas firmer txawm rau cov hlau tuab.
Nrog lub tshuab compact thiab me me, lub tshuab laser welder portable yog nruab nrog lub tshuab txav tau yooj yim laser welder phom uas yog lub teeb yuag thiab yooj yim rau kev siv ntau lub laser vuam ntawm txhua lub kaum sab xis thiab saum npoo.
Kev xaiv ntau hom laser welder nozzles thiab tsis siv neeg hlau pub tshuab ua rau laser vuam ua haujlwm yooj yim dua thiab yog tus phooj ywg rau cov pib tshiab.
Kev kub ceev laser vuam zoo heev ua rau koj cov khoom siv tau zoo thiab cov zis thaum ua kom muaj txiaj ntsig zoo ntawm laser vuam.
Cov ntsiab lus
Nyob rau hauv luv luv, laser vuam yuav tsum tau siv roj los tiv thaiv vuam chaw, tswj kub, txhim kho vuam zoo, thiab tiv thaiv kho qhov muag tshuab. Xaiv cov roj uas tsim nyog thiab cov khoom siv tsis zoo yog qhov tseem ceeb hauv kev ua kom muaj txiaj ntsig zoo thiab ruaj khov laser vuam txheej txheem thiab tau txais cov txiaj ntsig zoo vuam. Cov ntaub ntawv sib txawv thiab kev siv yuav xav tau ntau hom thiab sib xyaw ua ke kom tau raws li cov kev xav tau tshwj xeeb vuam.
Hu rau peb hnub nokom paub ntau ntxiv txog peb cov laser cutters thiab yuav ua li cas lawv tuaj yeem txhim kho koj cov txheej txheem ntau lawm.
Txuas txuas
Puas Muaj Cov Tswv Yim Txog Laser Vuam Tshuab?
Post lub sij hawm: Jan-13-2025