Vim li cas cov neeg tua tsiaj siv Argon?

Argon, ib qho tsis muaj kob, tsis muaj ntxhiab, thiab kua roj av, yog ib qho staple hauv vuam khw hauv ntiaj teb. Nws cov khoom tshwj xeeb ua rau nws tsis tseem ceeb rau ntau cov txheej txheem vuam, los ntawm TIG (GTAW) rau MIG (GMAW) thiab dhau mus. Welders cia siab rau Argon feem ntau yog tiv thaiv cov hlau los ntawm kev sib kis tawm, ruaj khov rau ntau yam kev cuam tshuam weld zoo, thiab lub zog, thiab xwm yeem. This article explores the key reasons argon is a go-to shielding gas in welding.​
1. Argon yog inert: tiv thaiv cov weld pas dej sib kis​
Lub luag haujlwm tseem ceeb tshaj plaws ntawm Argon hauv Vuam yog ua raws li kev thaiv cov roj av {{made pas dej hauv pas dej hauv Weld ntawm Mold Weld pas dej thiab cov chaw ib puag ncig. Huab cua muaj cov pa, nitrogen, thiab hydrogen, txhua yam uas hnov ​​tau nrog cov hlau kub los ua cov ntawv tsis muaj zog:
• Oxygen sib xyaw ua ke nrog molten hlau los ua cov oxides (piv txwv li, cov hlau oxide hauv txhuas), ua rau nkig, veavous welds nrog dentility.
• Nitrogen ua rau nitrogen tuaj tos -}}}}}} {} {ntiav sib txuas uas txo qis.
• Hydrogen (los ntawm noo noo nyob rau hauv huab cua) yaj nyob rau hauv molten hlau thiab cov npuas thiab txias, ua rau muaj qhov sib tw me me) uas muaj zog.
Argon's Inert Ceg txhais tau tias nws tsis hnov ​​mob nrog hlau, txawm tias thaum muaj kub. Thaum ntws ib ncig ntawm arc thiab pas dej Weld, nws ua pa taws, tiv thaiv cov kev mob no. Piv txwv li:
• Nyob rau hauv tig vuam ntawm txhuas, Argon Shields Lub pas dej Molten los ntawm oxoing, zam qhov tsim ntawm al₂o₃ (ib tug oxide tawv (ib tug haxide tawv uas yuav tiv thaiv kom tiv thaiv kev tsim nyog).
• Hauv Mig vuam ntawm cov hlau stainless, Argon tiv thaiv chromium (ib qho tseem ceeb alloy hauv cov hlau stainless) los ntawm oxidizing, khaws cov khoom siv hlau corrosion.
Qhov no kev tiv thaiv kab mob no tseem ceeb heev rau qhov siab - Cov khoom siv zoo xws li aerospace, qhov twg txawm tias cov tshuaj oxides tuaj yeem ua rau tsis muaj kev ua tsis tau.
2. Argon stabilizes arc rau smoother vuam
Argon tus qauv atomic ua rau nws yog tus neeg saib xyuas hluav taws xob zoo, uas yuav pab tswj cov vuam arc. Lub arc ruaj khov yog qhov tseem ceeb rau cov lus qhia tshav sov, hnav tsoos tsho WELD Beead tsim, thiab txo tau. Ntawm no yog li cas nws ua haujlwm:
• Thaum muaj hluav taws xob Arc tau tsoo ntawm electrode (lossis xaim atoms (nce lossis poob cov tshuab hluav taws xob), tsim txoj kev ua haujlwm ntawm arc.
• Tsis zoo li qee qhov roj av (piv txwv li, cov pa roj carbon dioxide), Argon tsis tawg rau hauv cov tshuaj tiv thaiv kab ke ntawm arc tseem nyob ntawm qhov qis qis.
Qhov kev ruaj khov no tshwj xeeb tshaj rau:
• Tig vuam: Tig tau relies ntawm ib tug meej heev, nqaim arc kom yaj hlau tsis muaj muab tub luam (lossis nrog cov phau ntawv muab kev sib ntxiv). Argon's Arc - Cov txiaj ntsig stabilizing tso cai rau cov khoom siv vuam nyias nyias (piv txwv li cov ntawv hloov kho me me) qhov twg txawm tias me ntsis hloov pauv tuaj yeem ua rau cuam tshuam.
• Tsawg - Ampernage Vuam: Vuam nyias hlau) Argon ntseeg tau lub arc uas muaj launc thiab tsom mus, ua cov weltat-spitted-dawb wels.
• Vuam tsis - ferrous hlau: Aluminium, tooj liab, thiab magnesium yog heev conductive thiab tuaj yeem "kev nyiag" los ntawm arc. Argon lub arc kev pab qhia kom sov rau lub rhaub weld, ua kom zoo nkauj.
3. Argon ua haujlwm nrog ntau cov ntaub ntawv thiab cov txheej txheem
Argon lub versatility - nws muaj peev xwm yoog tau rau cov hlau sib txawv thiab}} ua rau nws nyiam ntawm cov welders. Nws yog siv (ib leeg lossis hauv kev sib xyaw) hauv:
3.1 Tig Vuam (GTaw)
Tig Vuam kev cia siab yuav luag txhua yam ntawm Argon (lossis Argon {{{helium messtures) rau kev thaiv. Nws inertness thiab arc ruaj khov ua rau nws zoo tagnrho rau:
• Aluminium thiab magnesium: Cov hlau no hlau cov tshuaj tawv oxides uas yuav tsum tau ntxuav, oxide- weld free weld pas dej. Argon tiv thaiv rov-}} ecidation, thaum nws arc ua kom meej melts los ntawm cov oxides uas twb muaj lawm.
• Stainless hlau: Argon tiv thaiv chromium los ntawm oxidation, khaws cia corrosion tsis kam.
• Nypis lossis precision)
3.2 MIG VUAM (GMAW)
Thaum ntshiab argon yog tsawg dua nyob rau hauv mig vuam ntawm hlau (nws tuaj yeem ua rau nto), argon {{} Raws li kev sib xyaw yog cov qauv:
• Argon + Carbon Dioxide (CO₂): IB 75% Kev sib cav sib cav sib ceg yog "Workhorse" rau MIG VUAM MOJ YUAM HLAU. Koom ntxiv ntxiv rau kev nkag mus, thaum sib cav sib ceg ntawm arc thiab txo lub ntsej muag.
• Argon + Oxygen: ib 98% Argon / 2% Cov pa oxygen sib xyaw rau cov hlau stainless mig vuam. Oxygen pab daim slag ruaj khov uas txhim kho cov duab qev, thaum sib cav tiv thaiv chromium oxidation.
• Ntshiab Argon: siv rau mig weldingin. Nws los teb lub pas dej weld thiab ua haujlwm nrog txhuas cov ntaub muag xim hlau, txo qhov kev pheej hmoo ntawm cov teeb meem xaim pub.
3.3 Lwm cov txheej txheem
• Ntshav Arc Vuam: Zoo ib yam li TIG tab sis nrog ib qho kev txwv Arc, Ntshav Vuam siv cov dav hlau thiab tiv thaiv tus weld.
• Roj Tungsten arc chaw welding: ib tug tshwj xeeb tig txheej txheem rau koom cov phaj nyias, cia siab rau kev ntxuav, muaj zog.
4. Argon tau sib xws nrog ob qho tib si AC thiab DC VUAM
Ntau cov txheej txheem vuam siv cov txheej txheem tshiab tam sim no (AC) lossis ncaj qha tam sim no (DC), thiab Argon ua haujlwm tso siab nrog ob qho tib si:
• DC Tig Vuam: Siv rau cov hlau thiab stainless hlau, DC yuav tsum tau muaj arc ruaj khov. Argon's Conductivity kom muaj arc nyob qis qis, txawm nyob ntawm qhov siab ntws.
• AC Tig vuam: siv rau txhuas (txhawm rau tawg cov txheej oxide), AC hloov cov kev taw qhia tam sim no, uas tuaj yeem ua tau zoo arcs. Argon lub ionization tej yam muaj ARC ruaj khov thaum lub sijhawm hloov pauv no, ua kom muaj qhov ua tau zoo ntawm txhuas.
Qhov AC / DC sib xyaw ua haujlwm tau tshem tawm cov pa roj sib txawv thaum hloov ntawm cov hom tam sim no, yooj yim teeb tsa cov welders ua haujlwm nrog ntau cov ntaub ntawv.
5. Argon Mixtures txhim kho kev ua tau rau cov haujlwm tshwj xeeb
Thaum ntshiab argon yog pab tau, welders feem ntau sib tov nws nrog lwm cov roj av kom tailor nws cov khoom rau cov haujlwm tshwj xeeb:
• Argon + Helium nce tshav kub ntxiv (nws ua cua sov zoo dua li Artakes lossis tooj liab (cov hlau nrog lub thermal conductivity). A 50/50 Argon / Helium Mix yog ib qho muaj rau vuam ½ - nti txhuas.
• Argon + hydrogen: siv nyob rau hauv stainless hlau vuam, me me ntawm hydrogen (2-5% txhim kho kev tswj hwm kom tsis txhob muaj hydrogen kom tsis txhob muaj hydrogen kom tsis txhob muaj hydrogen kom tsis txhob muaj hydrogen kom tsis txhob muaj hydrogen kom tsis txhob muaj hydrogen kom tsis txhob muaj hydrogen kom tsis txhob muaj hydrogen {}}} tsis muaj kev tawg.
• Argon + CO + Cov Pa: Lub Pebtub Sib Tw (piv txwv li, 90% Ceg), thiab hlaws kom muaj kev nkag mus rau qhov siab.
Cov tshuaj sib xyaw ua ke sib cav sib ceg (inertness, arc ruaj khov) thaum ntxiv cov txiaj ntsig zoo li kev nkag mus, ua rau lawv muaj ntau yam kev ua haujlwm nyuaj.
6. Argon yog tus nqi -}} Siv tau zoo thiab yooj yim siv
Piv nrog rau cov roj txheem tshwj xeeb (piv txwv li, cov ntshiab helium), Argon yog kev pheej yig thiab dav muaj. Nws inertness kuj ua rau nws muaj kev nyab xeeb los lis (thaum siv kom raug), tsis muaj kev pheej hmoo ntawm kev sib txuas lossis lom neeg ntau lawm (tsis zoo li acetylene lossis boos hauv qee cov ntsiab lus).
Argon yog khaws cia rau hauv high - Lub zog siv hluav taws xob muaj zog muaj cov tswj hwm ntws (feem ntau 10-30 cubic feet ib teev, nyob ntawm cov txheej txheem). This simplicity-no need for complex gas delivery systems-makes it accessible for both professionals and hobbyists.​
7. Thaum Argon tsis yog qhov kev xaiv zoo tshaj plaws (thiab vim li cas nws tseem muaj teeb meem)
Argon tsis zoo tag nrho rau txhua qhov xwm txheej. Piv txwv li:
• Sab nraum zoov MIG VUAM: Argon (lossis Argon Mixes) tau yooj yim cuam tshuam nrog cua, uas tawg cov thaiv npog cov pa roj teeb. Ntawm no, flux -} cored hlau (uas siv sab hauv flux rau kev thaiv npog) yog qhov zoo dua.
• tuab vuam vuam: ntshiab argon kuj tsis muaj qhov nkag mus txaus rau 1-nti + steel daim hlau. Ntxiv cov pa lossis cov pa oxygen rau argon daws qhov no, raws li pom hauv 75 ₂ angon / sib xyaw.
Txawm nyob hauv cov rooj plaub no, Argon feem ntau yog ib feem ntawm kev daws (piv txwv li, raws li ib qho kev sib xyaw ua ke hauv vuam.
Xaus: Argon yog lub hauv paus ntawm kev siv vuam zoo
Welders siv Argon vim tias nws cov kev sib tw yog cov nyom ntawm cov hlau los ntawm kev sib kis Seb puas siv ib leeg nyob rau hauv tig vuam vuam ntawm aluminium lossis ua ib feem ntawm kev sib tov hauv mig vuam ntawm hlau yog muaj zog, huv si, thiab txhim khu kev qha. Nws cov vagatility, kev pheej yig, thiab kev ua haujlwm ua rau nws irreplaceable hauv kev siv vuam niaj hnub {2}