Qhov sib txawv ntawm TIG, MIG thiab MAG vuam
1. TIG welding feem ntau yog vuam teeb tuav nyob rau hauv ib tes thiab ib lub vuam hlau tuav nyob rau hauv lwm yam, uas yog haum rau phau ntawv welding ntawm me me kev khiav hauj lwm thiab kho.
2. Rau MIG thiab MAG, cov vuam hlau raug xa tawm los ntawm vuam teeb los ntawm kev siv cov hlau tsis siv neeg, uas yog tsim rau vuam tsis siv neeg, thiab tau kawg nws kuj siv tau los ntawm tes.
3. Qhov sib txawv ntawm MIG thiab MAG feem ntau yog cov roj tiv thaiv. Cov cuab yeej zoo sib xws, tab sis yav dhau los feem ntau muaj kev tiv thaiv los ntawm argon, uas yog tsim rau vuam tsis-ferrous hlau; tom kawg yog feem ntau tov nrog carbon dioxide active gas nyob rau hauv argon, thiab yog haum rau welding high-strength steel thiab high-alloy steel.
4. TIG thiab MIG yog inert gas shielded vuam, feem ntau hu ua argon arc vuam. Cov roj inert tuaj yeem yog argon lossis helium, tab sis argon pheej yig, yog li nws feem ntau siv, yog li inert gas arc vuam feem ntau hu ua argon arc vuam.
Kev sib piv ntawm MIG vuam thiab TIG vuam
Kev sib piv ntawm MIG vuam thiab TIG vuam MIG vuam (melting inert gas shielded welding) ua lus Askiv: hlau inert-gas vuam siv lub melting electrode.
Lub arc vuam txoj kev uas siv cov roj ntxiv raws li qhov nruab nrab arc thiab tiv thaiv cov hlau tee, vuam pas dej ua ke thiab cov hlau kub kub nyob rau hauv qhov chaw vuam yog hu ua roj hlau shielded arc vuam.
Cov roj inert (Ar los yog Nws) shielded arc vuam txoj kev nrog cov khoom hlau yog hu ua molten inert gas shielded vuam, los yog MIG vuam luv luv.
MIG welding yog tib yam li TIG vuam tsuas yog siv cov hlau tsis siv cov tungsten electrode hauv lub teeb. Yog li, lub vuam hlau yog yaj los ntawm arc thiab pub rau hauv qhov chaw vuam. Cov tshuab hluav taws xob uas muaj hluav taws xob pub cov xaim los ntawm cov spool mus rau lub teeb raws li qhov yuav tsum tau ua rau vuam, thiab cov cua kub kuj yog DC arc.
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Tab sis qhov polarity tsuas yog qhov txawv ntawm qhov uas siv hauv TIG vuam. Lub shielding gas siv kuj txawv, thiab 1% oxygen ntxiv rau argon los txhim kho qhov ruaj khov ntawm arc.
Zoo li TIG vuam, nws tuaj yeem vuam yuav luag txhua cov hlau, tshwj xeeb tshaj yog tsim rau vuam cov ntaub ntawv xws li txhuas thiab txhuas alloys, tooj liab thiab tooj liab alloys, thiab stainless hlau. Yuav luag tsis muaj oxidation hlawv poob hauv cov txheej txheem vuam, tsuas yog me me ntawm evaporation poob, thiab cov txheej txheem metallurgical kuj yooj yim.
TIG welding (Tungsten Inert Gas Vuam), tseem hu ua non-melting inert gas tungsten shielded vuam. Txawm hais tias nws yog phau ntawv vuam lossis tsis siv neeg vuam ntawm 0.5-4.0mm tuab stainless hlau, TIG vuam yog txoj kev siv vuam ntau tshaj plaws.
Cov txheej txheem ntawm kev ntxiv cov xaim los ntawm TIG vuam feem ntau yog siv rau kev thim rov qab vuam ntawm cov hlab ntsha siab, vim tias cov cua nruj ntawm TIG vuam zoo dua thiab tuaj yeem txo qhov porosity ntawm vuam seam thaum vuam ntawm cov hlab ntsha siab.
Lub tshav kub ntawm TIG vuam yog DC arc, qhov ua haujlwm voltage yog 10-95 volts, tab sis tam sim no tuaj yeem ncav cuag 600 amps.
Txoj hauv kev kom raug rau kev sib txuas ntawm lub tshuab vuam yog txuas lub workpiece mus rau tus ncej zoo ntawm lub hwj chim, thiab tus ncej tungsten nyob rau hauv lub vuam teeb raws li tus ncej tsis zoo.
Cov pa roj inert, feem ntau argon, yog pub los ntawm lub teeb los tsim ib daim ntaub thaiv nyob ib ncig ntawm lub arc thiab tshaj lub pas dej ua ke.
Txhawm rau kom cov cua sov nkag, feem ntau 5% hydrogen yog ntxiv rau argon. Txawm li cas los xij, thaum vuam ferritic stainless hlau, hydrogen tsis tuaj yeem ntxiv rau hauv argon.
Kev siv roj yog li 3-8 litres ib feeb.
Nyob rau hauv cov txheej txheem vuam, ntxiv rau tshuab inert gas los ntawm vuam vuam, nws yog qhov zoo dua los tshuab cov roj siv los tiv thaiv lub nraub qaum ntawm vuam los ntawm hauv qab vuam.
Yog tias xav tau, lub weld puddle tuaj yeem sau nrog cov xaim ntawm tib lub ntsiab lus raws li cov khoom siv austenitic tau welded. Hom 316 muab tub lim feem ntau yog siv thaum vuam ferritic stainless hlau.
Vim muaj kev tiv thaiv ntawm argon roj, nws tuaj yeem cais cov teebmeem ntawm huab cua ntawm cov hlau molten, yog li TIG vuam siv dav hauv vuam.
Yooj yim oxidized non-ferrous hlau xws li txhuas, magnesium thiab lawv cov alloys, stainless hlau, high-temperature alloys, titanium thiab titanium alloys, nrog rau refractory active hlau (xws li molybdenum, niobium, zirconium, thiab lwm yam), thaum cov pa roj carbon zoo tib yam. steel, tsis tshua muaj alloy steel, thiab lwm yam khoom siv, TIG vuam feem ntau tsis siv tshwj tsis yog rau lub sijhawm uas yuav tsum tau vuam zoo.
Post lub sij hawm: Aug-24-2023
