Tig Vuam (Tungsten inert roj) yog kev ua kev zoo siab rau nws cov cwj pwm ua kom huv si, qhov kev tiv thaiv weld Thaum nws los txog rau Tig vuam hlau, cov lus nug ntawm seb ib qho 75% roj av sib xyaw ua ke yuav ua li cas cov roj ntsha no sib cuam tshuam nrog cov txheej txheem. Cov lus teb luv luv yog: cov txheej txheem weld
Txhawm rau kom nkag siab yog vim li cas, nws yog qhov tseem ceeb los nco ntsoov Tig Vuam cov tseem ceeb. TIG cia siab rau ntawm ib qho inert lossis semi- inert thaiv cov roj kom tiv thaiv oxidation, nitrogen tuaj tos, thiab tungsten tsis huv. Rau cov hlau - pa roj carbon hlau, qis {{} Cov pa hluav taws xob zoo tshaj plaws, thiab zam kev ua haujlwm ntawm Molten, thiab zam kev txwv tsis pub muaj kev ncaj ncees Weld. Ntshiab Argon yog tus qauv rau Tig vuam hlau: nws yog inert, lub ntsiab lus nws tsis muaj zog, kom huv welding arc, huv si Welds, thiab tsawg heev.
Ib tug 75/25 sib Pem / Kev sib xyaw sib cav sib ceg Cawv yog reactive thiab dissociates nyob rau hauv lub siab- kub arc, tso pa tawm thiab carbon. Thaum cov kev cuam tshuam no tau txais txiaj ntsig zoo hauv MIG VUAM (qhov uas nws tau txhim kho cov roj ntsha static rau cov hlau), nws tsim cov teeb meem hauv Tig vuam:
Tungsten Electrode cov kev sib txawv: Tig vuam siv tsis -}} Consumable Tungsten Electrode los tsim ARC. Cov pa oxygen tso los ntawm co₂ reacts nrog kub tungsten, sib sau tungsten oxides. Qhov no paug cov dej paug rau cov electrode, ua rau nws mus "pob nce" lossis tawg, uas downabilizes lub arc. Lub Arc tsis ruaj khov ua rau muaj cua sov tsis ruaj khov, tsis sib thooj hauv weld {{4 4} qhov tsis muaj zog uas tsis muaj zog ntawm kev sib koom tes thiab xav tau kev ua haujlwm. Ntshiab Agon, ua inert, zam qhov kev tawm tsam no, khaws cia electrodity.
R Weld Pas Oxidation: Cov pa oxygen los ntawm CO₂ kuj tab tom muaj cov hlau Molten, ua hlau oxides. Cov tshuaj oxide no ua rau porosity (me me roj npuas) nyob rau hauv weld thiab tsim cov ntxhib, discolored hlaws nto. Rau cov pa roj carbon hlau, tus oxidation txo cov qauv thiab tuaj yeem ua rau tawg ua kev ntxhov siab. Rau cov hlau stainless, nws depletes chromium (ib qho tseem ceeb corrosion {{} {{{{}} be} cuam tshuam nws lub peev xwm tiv thaiv xeb. Ntshiab Agon, los ntawm kev cais cov pas dej molten los ntawm cov pa, tiv thaiv oxidation nkaus.
ARC qhov tsis txaus ntseeg: Thaum sib txuas ntxiv Arc ruaj khov hauv MIG VUAM (los ntawm kev nce qib hauv 75/25 Blessization cuam tshuam TIG's Arc tshuav nyiaj li cas. TIG cia siab rau ntawm tus neeg nyob ruaj khov, tsom mus tswj cov tswv yim tshav kub kub {qhov tseem ceeb rau cov hlau, uas tuaj yeem ua rau muaj cua sov. Lub 75/25 Qhov no tshwj xeeb tshaj plaws rau nyias hlau (tsawg dua lossis sib npaug nrog 3 hli), qhov twg precise kub tswj yog qhov tseem ceeb kom tsis txhob hlawv - los ntawm.
Kev tsim cov nplais: Cov pa roj carbon los ntawm kev yuav muaj kev sib tsoo nrog cov hlau (xws li cov hlau (xws li cov kab ke sib xyaw ua ke {}} cov khoom siv daig hauv Weld. Slag tsis muaj zog ua ke los ntawm kev tsim cov ntsiab lus muaj kev ntxhov siab thiab txo cov lus fusion ntawm Weld thiab cov hlau hauv paus. Tsis zoo li mig vuam (qhov twg sleag yog tswj hwm los ntawm cov txheej txheem), tig tsis muaj flux, ua rau slag, ua cov inclusions harder kom zam tau nrog 75/25 roj.
Muaj ib qho niche scario qhov twg 75 yuav siv rau Tig Vuam yuam kev twg yog qhov tseem ceeb (piv txwv li kev ntseeg ib ntus rau qis} kev nyuaj siab carbon hlau). Hauv cov xwm txheej zoo li no, kev sib xyaw ua ke (nws yog siv dav rau mig vuam, ua rau nws yooj yim qhov kev txhawj xeeb. Txawm li cas los xij, qhov kev pheej hmoo ntawm cov hluav taws xob kev puas tsuaj thiab weld tsis xws luag ua rau nws hloov chaw tsis zoo rau tus ntshiab AgNON.
Rau tig vuam hlau, lwm txoj kev xaiv rau 75/25 sib cav / co ₂ yog qhov ua tau zoo dua:
Ntshiab Agon: tus qauv kub rau txhua hom steel. Nws ua kom muaj zog ua haujlwm Arcs, ntxuav Welds, ua rau nws zoo tagnrho rau cov roj carbon hlau, qis {}} allloy steel, thiab stainless hlau.
Argon + 1-5% hydrogen: Siv rau tuab cov hlau lossis qis}
Argon + Helium: txhim kho cov tswv yim tshav kub rau high -}}} almoy qib rau kev siv dav dav.
Hauv cov ntsiab lus, thaum 75% Coo tau thev naus laus zis ntawm cov hlau weld ntawm cov hlau, nws cov kev ua kom zoo rau cov ntawv thov feem ntau. Nws txaus ntshai tungsten tsis huv, weld oxidation, arc tsis muaj peev xwm, thiab sluag inclusions {}} txhua yam uas tsis zoo. Rau kev txhim khu kev qha, siab - Kev Ua Yeeb Yam Hauv Hlau ntawm Hlau, Ntshiab Argon tseem yog qhov ua kom zoo dua qub, ua kom cov txheej txheem tseeb thiab kev ncaj ncees.
