Argon Arc Welding (AAW), tseem hu ua Gas Tungsten Arc Vuam (GTAW), yog ib qho ntawm cov txheej txheem vuam zoo tshaj plaws thiab ntau yam siv hauv lub ntiaj teb kev lag luam niaj hnub no. Nws yog lub npe nrov rau nws lub peev xwm los muab siab -welds zoo nyob rau hauv ntau yam ntaub ntawv, tshwj xeeb tshaj yog hlau xws li txhuas, stainless hlau, thiab titanium. Cov txheej txheem no siv cov khoom siv tsis yog -tungsten electrode los tsim hluav taws xob arc, nrog argon lossis helium gas ua tus tiv thaiv nruab nrab los tiv thaiv lub pas dej weld los ntawm huab cua paug. Kab lus no yuav tshawb txog cov ntsiab lus tseem ceeb, kev siv, qhov zoo, thiab kev txwv ntawm Argon Arc Vuam.
Basic Principles ntawm Argon Arc Vuam
Cov txheej txheem ntawm Argon Arc Vuam yog nyob ntawm kev tsim cov hluav taws xob arc ntawm tungsten electrode thiab cov khoom siv hauv paus. Lub tungsten electrode tsis yaj thaum lub sijhawm ua haujlwm, ua rau nws tsis yog -consumable, uas yog ib qho ntawm cov yam ntxwv tseem ceeb ntawm GTAW los ntawm lwm txoj kev vuam, xws li Shielded Hlau Arc Vuam (SMAW).
Lub arc generated ntawm lub tungsten electrode thiab lub workpiece ncav cuag qhov kub thiab txias, feem ntau tshaj 6,500℃(11,700℃F), txaus los yaj lub hauv paus cov ntaub ntawv thiab tsim lub weld pas dej ua ke. Argon, cov pa roj zoo, yog siv los ua cov roj tiv thaiv kom tsis txhob muaj cov pa paug ntawm oxygen, nitrogen, thiab hydrogen, uas tuaj yeem ua rau qhov zoo ntawm cov vuam. Qee zaum, kev sib xyaw ntawm argon thiab helium yog ua haujlwm kom ua tiav cov khoom siv hluav taws xob ntau dua rau cov ntaub ntawv tuab lossis vuam nrawm dua.
Cheebtsam ntawm Argon Arc Vuam Khoom
AAW cov cuab yeej muaj ntau yam tseem ceeb:
Hwj chim Source: Feem ntau yog qhov tam sim no DC lossis AC fais fab mov, nyob ntawm cov khoom siv welded. DC feem ntau yog siv rau vuam cov ntaub ntawv ferrous, thaum AC nyiam dua rau cov khoom tsis yog -ferrous xws li txhuas.
Tungsten electrode: Cov khoom siv tsis siv hluav taws xob feem ntau yog ua los ntawm cov tungsten ntshiab lossis tungsten alloy, nyob ntawm qhov yuav tsum tau ua. Lub electrode yog sharpened mus rau ib tug taw tes los tsim ib tug ruaj khov arc.
Tiv thaiv Gas: Argon yog thawj cov roj tiv thaiv vim nws cov khoom tsis muaj zog. Nws tiv thaiv lub molten weld pas dej ua ke los ntawm reacting nrog atmospheric ntsiab, kom ntseeg tau lub weld txoj kev ncaj ncees. Helium tuaj yeem siv los ua cov pa tiv thaiv thib ob hauv qee qhov kev siv.
Vuam Torch: Lub teeb tuav lub tungsten electrode thiab coj cov ndlwg ntawm shielding gas mus rau lub pas dej ua ke. Nws kuj muab tus neeg teb xov tooj nrog txoj kev los tswj cov vuam arc.
Filler Khoom: Thaum lub tungsten electrode tsis yog - siv tau, cov khoom siv muab tub lim yuav raug siv los ntxiv cov khoom siv ntxiv rau lub pas dej welding, tshwj xeeb tshaj yog rau cov thicker lossis ntau cov welds. Filler rods ua los ntawm tib yam khoom raws li lub hauv paus hlau feem ntau yog siv.
Kev siv ntawm Argon Arc Vuam
Argon Arc Vuam yog siv nyob rau hauv ntau yam lag luam uas siab -welds zoo yog qhov tseem ceeb, xws li:
Aerospace: GTAW yog ua hauj lwm nyob rau hauv aerospace daim ntaub ntawv uas precision thiab weld kev ncaj ncees tseem ceeb heev. Nws yog siv los vuam cov ntaub ntawv hnyav xws li txhuas alloys thiab titanium rau cov qauv dav hlau thiab tshuab.
Automotive: Hauv kev lag luam tsheb, AAW feem ntau yog siv rau vuam cov khoom tseem ceeb, xws li cov tshuab tso pa, roj tso tsheb hlau luam, thiab lub cev vaj huam sib luag. High - ua kom tiav zoo yog qhov tseem ceeb rau qhov chaw raug kev nyuaj siab thiab kub.
Marine thiab Shipbuilding: Cov txheej txheem yog siv rau vuam cov khoom ntawm cov nkoj thiab submarines, tshwj xeeb tshaj yog nyob rau hauv zus tau tej cov hulls thiab siab hlab ntsha, uas yuav tsum tau tiv taus hnyav ib puag ncig.
Khoom noj khoom haus thiab Pharmaceutical Industries: GTAW kuj tseem siv rau vuam stainless hlau Cheebtsam hauv kev lag luam uas xav tau cov qauv kev nyiam huv siab, xws li kev ua zaub mov thiab tshuaj, vim qhov huv thiab tsis yog{0}} paug ntawm cov txheej txheem.
Lub zog tiam: Hauv cov chaw tsim hluav taws xob, GTAW yog siv rau cov khoom siv vuam uas yuav tsum tau tiv taus qhov kub thiab txias, xws li boilers, turbines, thiab cov kav dej.
Qhov zoo ntawm Argon Arc Vuam
Argon Arc Vuam muaj ntau yam zoo uas ua rau nws haum rau ntau yam kev siv:
Precision thiab Tswj: Txij li thaum cov tungsten electrode tsis yaj, cov txheej txheem vuam tuaj yeem tswj tau qhov tseeb, ua rau siab - zoo, huv welds nrog tsawg spatter. Tus neeg teb xov tooj muaj kev tswj ncaj qha rau ntawm qhov arc, uas yog qhov tseem ceeb rau kev sib tw lossis nyias - cov khoom siv phab ntsa.
Ntau yam: AAW tuaj yeem siv rau ntau yam hlau, suav nrog ferrous thiab non{0}}ferrous cov ntaub ntawv xws li txhuas, magnesium, thiab stainless hlau. Nws kuj tseem siv tau rau cov khoom siv vuam nrog cov thickness sib txawv.
Ntxuav Welds: Kev siv argon ua cov roj thaiv thaiv kom ntseeg tau tias cov welds tsis muaj oxidation thiab paug, muab cov txiaj ntsig zoo nkauj zoo nkauj yam tsis tas yuav tsum tau ua tom qab- vuam tu.
Tsawg Distortion: Cov khoom siv hluav taws xob tswj tau hauv GTAW pab txo qis qhov cuam tshuam ntawm cov khoom siv hauv paus, ua rau nws zoo tagnrho rau nyias - cov ntawv siv phab ntsa.
Tsis muaj Slag Formation: Tsis zoo li lwm cov txheej txheem vuam xws li SMAW, GTAW tsis tsim cov slag, uas txo qhov kev xav tau ntawm kev ntxuav tom qab vuam.
Kev txwv ntawm Argon Arc Vuam
Txawm hais tias nws qhov zoo, Argon Arc Vuam muaj qee qhov kev txwv uas yuav tsum tau xav txog:
Slower vuam ceev: Cov txheej txheem kuj qeeb dua piv rau lwm txoj kev, xws li MIG (Metal Inert Gas) vuam lossis SMAW. Qhov no tuaj yeem ua rau cov nqi zog ntau dua rau cov khoom loj -.
Khoom siv: Cov khoom siv uas xav tau rau GTAW tuaj yeem kim dua li lwm cov txheej txheem vuam, tshwj xeeb tshaj yog rau siab - cov tshuab ua haujlwm tau tsim los rau kev lag luam.
Kev Txawj Ntse: GTAW yuav tsum muaj kev txawj ntse thiab kev paub dhau los ntawm tus neeg teb xov tooj. Tus welder yuav tsum muaj tes zoo heev - qhov muag kev sib koom tes thiab muaj peev xwm tswj tau qhov chaw ruaj khov, tshwj xeeb tshaj yog thaum vuam cov ntaub ntawv nyias.
Txwv rau cov ntaub ntawv tuab: Thaum GTAW yog qhov zoo tagnrho rau nyias mus rau nruab nrab- cov ntaub ntawv tuab, nws tsis tshua haum rau tuab - cov khoom siv phab ntsa piv rau cov txheej txheem xws li Shielded Hlau Arc Vuam (SMAW) lossis MIG vuam.
Xaus
Argon Arc Vuam yog cov txheej txheem vuam zoo thiab meej, muab qhov tshwj xeeb zoo thiab muaj txiaj ntsig rau ntau yam khoom siv thiab kev lag luam. Thaum cov txheej txheem yuav qeeb qeeb thiab raug nqi ntau dua li lwm cov kev siv vuam, nws lub peev xwm los tsim kom huv si, siab - lub zog welds nrog tsawg distortion ua rau nws indispensable nyob rau hauv daim ntaub ntawv uas precision yog qhov tseem ceeb. Raws li thev naus laus zis txuas ntxiv mus, GTAW tseem yog cov txheej txheem tseem ceeb rau kev lag luam uas xav tau cov khoom siv ruaj khov thiab siab -kev ua tau zoo welded Cheebtsam.
