Qhov cuam tshuam ntawm Kev Tiv Thaiv Gas hauv Laser Vuam
Handheld Laser Welder
Tshooj Cov ntsiab lus:
▶ Dab tsi tuaj yeem muaj peev xwm Shield Gas tau rau koj?
▶ Ntau hom kev tiv thaiv roj
▶ Ob txoj kev siv roj tiv thaiv
▶ Yuav Ua Li Cas Xaiv Cov Roj Tiv Thaiv Zoo?
Handheld Laser Vuam
Cov txiaj ntsig zoo ntawm Proper Shield Gas
Hauv kev vuam laser, kev xaiv cov roj tiv thaiv tuaj yeem muaj kev cuam tshuam loj rau kev tsim, zoo, qhov tob, thiab qhov dav ntawm lub vuam seam. Hauv feem ntau ntawm cov xwm txheej, kev qhia txog kev tiv thaiv roj muaj txiaj ntsig zoo ntawm cov vuam seam. Txawm li cas los xij, nws kuj tuaj yeem muaj qhov tsis zoo. Cov txiaj ntsig zoo ntawm kev siv cov roj tiv thaiv raug yog raws li hauv qab no:
1. Kev tiv thaiv zoo ntawm lub pas dej welding
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.
2. Txo qhov tawg
Kev qhia cov roj tiv thaiv kom raug tuaj yeem txo qhov tawg thaum lub sijhawm vuam.
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.
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.
5. Txo qhov vuam 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.
Txawm li cas los xij,
Kev siv cov roj tiv thaiv tsis raug tuaj yeem ua rau muaj kev puas tsuaj rau kev vuam. Cov teebmeem tsis zoo muaj xws li:
1. Deterioration ntawm weld seam
Kev qhia tsis raug ntawm cov roj tiv thaiv yuav ua rau tsis zoo weld seam zoo.
2. Kev tawg thiab txo cov khoom siv kho tshuab
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. 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 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. Kev cuam tshuam ntawm weld qhov tob
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.
Handheld Laser Vuam
Hom Kev Tiv Thaiv Gases
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.
Handheld Laser Vuam
Txoj Kev Qhia Txog Kev Siv Hluav Taws Xob Hluav Taws Xob
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.
Handheld Laser Vuam
Cov Ntsiab Cai rau Kev Xaiv Txoj Kev Qhia Txog Kev Siv Hluav Taws Xob Hluav Taws Xob
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.
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.
Handheld Laser Vuam
Kev xaiv tshwj xeeb ntawm Txoj Kev Qhia Txog Kev Siv Hluav Taws Xob
1. Ncaj-kab Weld
Yog tias cov khoom siv vuam zoo yog ncaj, raws li qhia hauv daim duab 3, thiab cov kev 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 txoj kev tawm sab nraud uas pom 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.
Handheld Laser Vuam
Video Zaub | Glance rau Handheld Laser Vuam
Video 1 - Paub ntau ntxiv txog Handheld Laser Welder yog dab tsi
Video2 - Ntau yam Laser Vuam rau ntau yam kev xav tau
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Post lub sij hawm: May-19-2023