Qhov cuam tshuam ntawm Kev Tiv Thaiv Gas hauv Laser Vuam
Dab tsi tuaj yeem muaj peev xwm tiv thaiv roj tau rau koj?
In laser welding, kev xaiv cov roj tiv thaiv tuaj yeem muaj kev cuam tshuam loj rau kev tsim, zoo, qhov tob, thiab qhov dav ntawm qhov vuam seam.
Feem ntau ntawm cov xwm txheej, kev qhia txog cov roj tiv thaiv muaj txiaj ntsig zoo ntawm cov vuam seam thaum siv cov roj tiv thaiv tsis zoo tuaj yeem muaj kev cuam tshuam rau vuam.
Qhov tsim nyog thiab tsis raug ntawm kev siv cov roj tiv thaiv yog raws li hauv qab no:
Kev siv kom raug
Kev siv tsis raug
1. Kev tiv thaiv zoo ntawm lub pas dej Weld
Kev taw qhia txog kev tiv thaiv roj tau zoo tuaj yeem tiv thaiv lub pas dej ntawm oxidation los yog tiv thaiv oxidation tag nrho.
1. Deterioration ntawm Weld Seam
Kev qhia tsis raug ntawm cov roj tiv thaiv yuav ua rau tsis zoo weld seam zoo.
2. Txo kev tawg
Kev qhia cov roj tiv thaiv kom raug tuaj yeem txo qhov tawg thaum lub sijhawm vuam.
2. Kev tawg thiab txo cov cuab yeej cuab tam
Xaiv qhov tsis ncaj ncees lawm hom roj yuav ua rau weld seam cracking thiab txo cov neeg kho tshuab kev ua tau zoo.
3. Uniform tsim ntawm Weld Seam
Kev taw qhia kom zoo ntawm cov roj tiv thaiv txhawb kev sib kis ntawm lub pas dej weld thaum lub sij hawm solidification, uas ua rau ib tug zoo ib yam thiab aesthetically pleasing weld seam.
3. Ua kom Oxidation lossis cuam tshuam
Xaiv qhov tsis ncaj ncees lawm roj ntws tus nqi, txawm tias siab dhau los yog qis dhau, tuaj yeem ua rau muaj zog oxidation ntawm weld seam. Nws kuj tuaj yeem ua rau muaj kev cuam tshuam loj heev rau cov hlau molten, uas ua rau lub cev qhuav dej los yog tsis sib xws ntawm cov vuam seam.
4. Kev siv laser ntau ntxiv
Kev nthuav qhia cov roj tiv thaiv tau zoo tuaj yeem txo cov nyhuv shielding ntawm cov hlau vapor plumes los yog cov huab cua plasma ntawm lub laser, yog li ua kom lub laser efficiency.
4. Kev tiv thaiv tsis txaus lossis cuam tshuam tsis zoo
Xaiv txoj kev qhia txog roj tsis raug tuaj yeem ua rau muaj kev tiv thaiv tsis txaus ntawm cov vuam seam lossis txawm tias muaj kev cuam tshuam tsis zoo rau kev tsim cov vuam seam.
5. Txo ntawm Weld Porosity
Kev qhia cov roj tiv thaiv kom raug tuaj yeem txo qhov tsim cov roj pores nyob rau hauv weld seam. Los ntawm kev xaiv cov roj uas tsim nyog, tus nqi ntws, thiab kev taw qhia, cov txiaj ntsig zoo tuaj yeem ua tiav.
5. Kev cuam tshuam ntawm Weld Depth
Kev taw qhia txog kev tiv thaiv roj tuaj yeem muaj qee yam cuam tshuam rau qhov tob ntawm qhov vuam, tshwj xeeb tshaj yog nyob rau hauv nyias phaj vuam, qhov uas nws nyhav kom txo qhov tob ntawm vuam.
Ntau hom kev tiv thaiv roj
Feem ntau siv cov roj siv tiv thaiv hauv laser vuam yog nitrogen (N2), argon (Ar), thiab helium (He). Cov pa roj no muaj cov khoom sib txawv ntawm lub cev thiab tshuaj lom neeg, uas ua rau muaj kev cuam tshuam sib txawv ntawm cov vuam seam.
1. Nitrogen (N2)
N2 muaj qhov nruab nrab ionization zog, siab dua Ar thiab qis dua Nws. Nyob rau hauv qhov kev txiav txim ntawm lub laser, nws ionizes mus rau ib tug nruab nrab degree, zoo txo qhov tsim ntawm plasma huab thiab ua rau kom lub laser siv. Txawm li cas los xij, nitrogen tuaj yeem hnov mob chemical nrog aluminium alloys thiab carbon steel ntawm qee qhov kub, tsim nitrides. Qhov no tuaj yeem ua rau kom brittleness thiab txo qhov toughness ntawm weld seam, cuam tshuam tsis zoo rau nws cov khoom siv kho tshuab. Yog li ntawd, kev siv cov nitrogen ua cov roj tiv thaiv rau txhuas alloys thiab carbon steel welds tsis pom zoo. Ntawm qhov tod tes, nitrogen tuaj yeem hnov mob nrog cov hlau tsis muaj steel, tsim cov nitrides uas txhim kho lub zog ntawm kev sib koom ua ke. Yog li ntawd, nitrogen tuaj yeem siv los ua cov roj tiv thaiv rau vuam stainless hlau.
2. Argon Gas (Ar)
Argon roj muaj qhov tsawg tshaj plaws ionization zog, uas ua rau ntau dua ntawm ionization nyob rau hauv laser txiav. Qhov no tsis zoo rau kev tswj kev tsim cov huab cua hauv plasma thiab tuaj yeem muaj qee yam cuam tshuam rau kev siv cov lasers zoo. Txawm li cas los xij, argon muaj qhov cuam tshuam tsawg heev thiab tsis zoo li yuav muaj tshuaj lom neeg nrog cov hlau ntau. Tsis tas li ntawd, argon yog tus nqi zoo. Tsis tas li ntawd, vim nws qhov siab ceev, argon dab dej saum lub pas dej ua ke, muab kev tiv thaiv zoo dua rau lub pas dej weld. Yog li ntawd, nws tuaj yeem siv los ua cov pa tiv thaiv cov pa roj.
3. Helium Gas (Nws)
Helium roj muaj lub zog ionization siab tshaj plaws, ua rau qis qis ntawm ionization nyob rau hauv laser txiav. Nws tso cai rau kev tswj kom zoo dua ntawm cov huab cua hauv plasma, thiab lasers tuaj yeem cuam tshuam nrog cov hlau zoo. Ntxiv mus, helium muaj tsawg heev reactivity thiab tsis nkag mus rau cov tshuaj tiv thaiv nrog hlau, ua rau nws yog ib tug zoo heev roj rau weld shielding. Txawm li cas los xij, tus nqi ntawm helium yog siab, yog li nws feem ntau tsis siv hauv kev tsim khoom loj. Nws yog feem ntau ua haujlwm hauv kev tshawb fawb txog kev tshawb fawb lossis rau cov khoom muaj nqis ntxiv.
Ob txoj kev siv roj tiv thaiv
Tam sim no, muaj ob txoj hauv kev tseem ceeb rau kev qhia cov roj thaiv kev tiv thaiv: off-axis sab tshuab thiab coaxial shielding gas, raws li qhia hauv daim duab 1 thiab daim duab 2, raws li.
Daim duab 1: Off-axis Sab Blowing Shielding Gas
Daim duab 2: Coaxial Shielding Gas
Kev xaiv ntawm ob txoj kev tshuab yog nyob ntawm ntau yam kev xav.
Feem ntau, nws raug nquahu kom siv txoj kev tawm sab nraud los tiv thaiv cov roj.
Yuav Ua Li Cas Xaiv Cov Roj Tiv Thaiv Zoo?
Ua ntej, nws yog ib qho tseem ceeb kom paub meej tias lo lus "oxidation" ntawm welds yog ib qho kev qhia. Nyob rau hauv txoj kev xav, nws hais txog qhov tsis zoo ntawm weld zoo vim muaj tshuaj lom neeg ntawm cov hlau weld thiab cov khoom tsis zoo hauv huab cua, xws li oxygen, nitrogen, thiab hydrogen.
Tiv thaiv weld oxidation yuav txo tau los yog tsis txhob sib cuag ntawm cov khoom tsim kev puas tsuaj thiab kub-kub weld hlau. Lub xeev kub kub no suav nrog tsis tsuas yog cov hlau molten weld pas dej xwb tab sis kuj tag nrho lub sij hawm txij li thaum cov hlau weld melted kom txog rau thaum lub pas dej ua ke solidifies thiab nws qhov kub thiab txias qis dua ib qho chaw pib.
Vuam txheej txheem
Piv txwv li, nyob rau hauv vuam ntawm titanium alloys, thaum kub siab tshaj 300 ° C, sai hydrogen nqus tau tshwm sim; siab tshaj 450 ° C, kev nqus pa sai sai tshwm sim; thiab siab dua 600 ° C, kev nqus nitrogen sai sai tshwm sim.
Yog li ntawd, yuav tsum muaj kev tiv thaiv zoo rau cov titanium alloy vuam thaum lub sij hawm lub sij hawm thaum nws solidifies thiab nws kub qis dua 300 ° C los tiv thaiv oxidation. Raws li cov lus piav qhia saum toj no, nws yog qhov tseeb tias cov khoom siv hluav taws xob tiv thaiv yuav tsum tau muab kev tiv thaiv tsis yog rau lub pas dej ua ke ntawm lub sijhawm tsim nyog, tab sis kuj rau thaj tsam ntawm cov khoom siv hluav taws xob nkaus xwb. Yog li ntawd, txoj kev tawm ntawm txoj kev tawm sab nraud uas pom hauv daim duab 1 feem ntau yog qhov zoo dua vim tias nws muaj ntau yam kev tiv thaiv piv rau cov txheej txheem coaxial shielding qhia hauv daim duab 2, tshwj xeeb tshaj yog rau thaj tsam ntawm cov weld.
Txawm li cas los xij, rau qee yam khoom tshwj xeeb, kev xaiv ntawm txoj kev yuav tsum tau ua raws li cov qauv khoom thiab kev sib koom ua ke.
Kev xaiv tshwj xeeb ntawm txoj kev qhia txog kev tiv thaiv roj
1. Ncaj-kab Weld
Yog hais tias cov khoom lub vuam zoo yog ncaj, raws li qhia nyob rau hauv daim duab 3, thiab lub configuration sib koom ua ke muaj xws li pob qij txha, ceg tawv pob qij txha, fillet welds, los yog pawg welds, txoj kev nyiam rau hom khoom no yog off-axis sab tshuab txoj kev qhia nyob rau hauv daim duab 1.
Daim duab 3: Ncaj-kab Weld
2. Planar Enclosed Geometry Weld
Raws li pom nyob rau hauv daim duab 4, lub weld nyob rau hauv cov khoom no muaj ib tug kaw lub hom phiaj, xws li ib ncig, polygonal, los yog ntau-segment kab. Cov kev sib koom ua ke tuaj yeem suav nrog pob qij txha, pob qij txha, lossis pawg welds. Rau hom khoom no, txoj kev nyiam yog siv cov coaxial shielding gas uas qhia hauv daim duab 2.
Daim duab 4: Planar Enclosed Geometry Weld
Kev xaiv cov roj thaiv thaiv rau cov phiaj xwm txheej geometry welds ncaj qha cuam tshuam rau qhov zoo, kev ua tau zoo, thiab tus nqi ntawm vuam ntau lawm. Txawm li cas los xij, vim muaj kev sib txawv ntawm cov khoom siv vuam, kev xaiv cov roj vuam yog qhov nyuaj hauv cov txheej txheem vuam tiag tiag. Nws yuav tsum muaj kev xav txog cov khoom siv vuam, vuam txoj kev, vuam txoj haujlwm, thiab qhov xav tau vuam qhov xav tau. Kev xaiv cov vuam zoo tshaj plaws tuaj yeem txiav txim siab los ntawm kev ntsuas vuam kom ua tiav cov txiaj ntsig zoo vuam.
Video Zaub | Glance rau Handheld Laser Vuam
Paub ntau ntxiv txog Dab tsi yog Handheld Laser Welder
Daim vis dis aus no piav qhia txog dab tsi yog laser vuam tshuab thiabcov lus qhia thiab cov qauv uas koj yuav tsum paub.
Qhov no kuj yog koj qhov kawg qhia ua ntej yuav ib tug handheld laser welder.
Muaj cov txheej txheem yooj yim ntawm 1000W 1500w 2000w Laser Vuam Tshuab.
Versatile Laser Vuam rau ntau yam kev xav tau
Hauv daim vis dis aus no, peb ua kom pom ntau txoj kev vuam uas koj tuaj yeem ua tiav nrog lub tes tuav laser welder. Ib tug handheld laser welder muaj peev xwm txawm lub chaw ua si ntawm ib tug welding rookie thiab ib tug seasoned welding tshuab tswv.
Peb muab kev xaiv los ntawm 500w txhua txoj kev mus rau 3000w.
FAQs
- Nyob rau hauv laser vuam, shielding roj yog ib qho tseem ceeb tivthaiv siv los tiv thaiv qhov chaw vuam los ntawm atmospheric paug. Lub siab siv laser beam siv nyob rau hauv hom vuam no ua rau muaj qhov kub thiab txias, tsim kom muaj lub pas dej molten hlau.
Inert gas feem ntau yog siv los tiv thaiv lub pas dej molten thaum lub sij hawm vuam txheej txheem ntawm laser vuam tshuab. Thaum qee cov ntaub ntawv raug welded, nto oxidation yuav tsis raug txiav txim siab. Txawm li cas los xij, rau feem ntau cov ntawv thov, helium, argon, nitrogen, thiab lwm yam roj siv feem ntau siv los tiv thaiv. Cov hauv qab no Cia peb saib yog vim li cas laser vuam tshuab xav tau cov roj thaiv thaiv thaum vuam.
Nyob rau hauv laser vuam, lub shielding roj yuav cuam tshuam cov weld zoo, weld zoo, weld nkag, thiab fusion dav. Feem ntau, tshuab cov roj tiv thaiv yuav muaj kev cuam tshuam zoo rau cov vuam.
- Argon-Helium MixturesArgon-Helium Mixtures: feem ntau pom zoo rau feem ntau aluminium laser vuam daim ntaub ntawv nyob ntawm seb lub zog laser. Argon-Oxygen Mixtures: tuaj yeem muab kev ua haujlwm siab thiab siv tau zoo vuam zoo.
- Cov pa roj carbon dioxide (CO2), helium-neon (H thiab Neon), thiab nitrogen (N).
Puas muaj lus nug txog Handheld Laser Vuam?
Post lub sij hawm: May-19-2023