1. Shielded Hlau Arc Vuam (SMAW) - Feem ntau siv
Txoj Cai: Siv cov coated electrode los tsim ib qho arc ntawm cov electrode thiab workpiece; txheej txheej melts los tsim slag thiab shielding roj, tiv thaiv lub pas dej ua ke los ntawm huab cua paug.
Qhov zoo: Cov cuab yeej siv yooj yim, kev ua haujlwm yooj yim, tsim nyog rau ntawm - qhov chaw vuam (xws li, cov paib sab nraud, guardrails, steel qauv). Ua hauj lwm rau tag nrho cov thicknesses (los ntawm nyias daim hlau mus rau hnyav seem).
Ntsiab Lus: Xaivqis-hydrogen electrodes(piv txwv li, E7018-G rau SPA-H) kom tsis txhob muaj qhov txias txias; ci electrodes ntawm 300-350℃rau 1-2 teev ua ntej siv kom tshem tawm cov dej noo.
Tej kev siv: Ntawm - kho qhov chaw ntawm huab cua cov khoom steel, me me -batch tsim, thiab vuam ntawm cov pob qij txha.
2. Gas Hlau Arc Vuam (GMAW/MIG/MAG) - Siab -Kev xaiv ua tau zoo
Txoj Cai: Siv cov xaim hluav taws xob txuas ntxiv thiab cov roj thaiv thaiv (MIG: argon; MAG: argon + CO₂) los tiv thaiv lub pas dej welding; siab deposition tus nqi thiab ruaj khov arc.
Qhov zoo: Ceev vuam ceev, du weld nto, tsis tshua muaj spatter. Haum rau nruab nrab- daim hlau thickness (3-20 mm) thiab loj- teev ntau lawm (xws li, ntim khoom, cov khoom siv thav duab).
Ntsiab Lus: Sivargon + 2–5% CO₂sib xyaw roj kom zoo dua vuam lub zog thiab corrosion kuj; phim cov hlau qib mus rau lub hauv paus hlau (xws li, ER70S-6 rau SPA-H).
Tej kev siv: Kev tsim khoom loj ntawm weathering steel planters, qhia cov paib, thiab prefabricated qhov chaw.
3. Flux-Cored Arc Vuam (FCAW) - Zoo tagnrho rau cov phaj tuab
Txoj Cai: Siv ib tug tubular xaim uas muaj flux; cov flux melts los ua slag thiab shielding gas (self-shielded los yog gas-shielded versions muaj).
Qhov zoo: High penetration, suitable for thick plates (>16 mm) thiab sab nraum cua cua ib puag ncig (tus kheej-shielded FCAW tsis xav tau cov pa sab nraud). High deposition efficiency rau hnyav- cov khoom ua haujlwm.
Ntsiab Lus: Rau huab cua steel, sivlow-hydrogen flux-cov xov hlaukom txo qhov kev pheej hmoo tawg; tshem tawm slag kom huv si ntawm ntau- kis welds.
Tej kev siv: Welding tuab weathering steel choj Cheebtsam, hnyav machinery thav duab, thiab loj cia tank.
4. Submerged Arc Vuam (SAW) - Siab -Volume Production
Txoj Cai: Lub arc yog submerged nyob rau hauv ib txheej ntawm granular flux, uas tiv thaiv lub weld pas dej ua ke thiab txo spatter thiab arc teeb.
Qhov zoo: Extremely high deposition rate, deep penetration, and excellent weld quality consistency. Suitable for long straight seams or circular seams of thick plates (>20 mm).
Ntsiab Lus: Txwv rau txoj haujlwm tiaj tus lossis kab rov tav vuam; tsis haum rau qhov nyuaj lossis ntawm - qhov chaw vuam. Match flux thiab hlau ua ke kom ntseeg tau tias huab cua tsis kam ntawm cov hlau weld.
Tej kev siv: Loj- teev ntau lawm ntawm huab cua steel nkoj hulls, cov hlab ntsha siab, thiab cov kab teeb steel qauv.
5. Gas Tungsten Arc Vuam (GTAW/TIG) - Precision Vuam
Txoj Cai: Siv cov khoom siv tsis yog -tungsten electrode thiab shielding gas (argon) los tsim ib qho arc; muab tub lim ntxiv manually yog tias xav tau.
Qhov zoo: High weld precision, huv si thiab zoo nkauj weld nto, tsawg tshav kub input (txo HAZ loj). Haum rau daim hlau nyias (tsawg dua lossis sib npaug li 3 hli) thiab cov hauv paus hla kev vuam ntawm cov pob qij txha tseem ceeb.
Ntsiab Lus: Kev sib txuas qeeb qeeb, kev ua haujlwm siab rau cov neeg ua haujlwm. Qhov zoo tshaj plaws rau cov khoom siv hlau zoo nkauj (piv txwv li, kos duab kos duab, nyias- cov paib phab ntsa).
Tej kev siv: Vuam ntawm nyias txias- dov weathering steel strips, precision Cheebtsam, thiab hauv paus hla ntawm siab - kev ncaj ncees pob qij txha.
