Vuam aluminium nrog tus tuav lo nyias (tseem yog cov thaiv npog hlau arc vuam, tab sis nws los nrog cov kev cov nyom piv rau MIG lossis Tig Vuam Tsis zoo li cov hlau, txhuas lub zog - Xws li cov khoom siv thermal, thiab tawv ncauj oxide {2} Xav tau cov txheej txheem tshwj xeeb thiab cov electrodes tshwj xeeb. Ntawm no yog cov ncauj lus kom ntxaws saib yuav ua li cas kom mus kom ze Aluminium vuam, nws cov kev txwv, thiab nws yog qhov kev xaiv muaj txiaj ntsig.
Puas yog nws? Cov lus teb luv
Yog lawm, koj tuaj yeem weld aluminium nrog tus tuav lo nyias, tab sis nws tsis yog txoj kev feem ntau. Pas welding Aluminium Aluminium Ce Rau Tshwj XeebAluminium Electrodes(them nrog flux txheej) uas muab ob qho tib si muab cov hlau thiab thaiv los ntawm covmospheric kis. Cov hluav taws xob no tau tsim los txhawm rau tawg cia txhuas oxide thiab tsim cov pa roj tiv thaiv thaum lub sijhawm Weld. Txawm li cas los xij, vim txhuas cov yam ntxwv tshwj xeeb, cov txheej txheem xav tau ntau dua li cov khoom siv vuam hlau thiab ntau dua) lossis kev kho cov khoom siv uas Mig / TIG / TIG / TIG / TIG cov khoom siv tsis muaj.
Cov Khoom Siv Rau Cov Khoom Siv Rau Aluminium Hlau Vuam
Rau weld aluminium nrog tus tuav lo lo nplaum, koj yuav xav tau cov cuab yeej tshwj xeeb tshaj li cov teeb tsa sepaw:
- DC lo khawm ntawv nrog siab amerperage: Aluminium yuav tsum muaj cua sov ntau dua li cov hlau kom yaj, yog li ntawd ib qho hluav taws muaj peev xwm 150-300 amps yog qhov tsim nyog. Feem ntau txhuas lo rau kev siv electrode tam sim no (dcep) polarity, uas pab tawg cov txheej oxide thiab txhim kho arc ruaj khov.
- Aluminium -}} Cov ntaub ntawv tshwj xeeb: Siv hluav taws xob sau npe rau txhuas, xws liE4043lossisE5356(txuam nrog tib lub chaw ua haujlwm alloys siv hauv Mig / TIG VUAM). Cov hluav taws xob no muaj cov txheej txheem flux uas tso cov roj av roj (zoo li cov pa roj carbon dioxide thiab Argon) thaum rhuab, tiv thaiv cov weld pas dej / nitrogen.
- Stainless Hlau Hlau Txhuam (mob siab rau txhuas): Qhov tseem ceeb rau kev tshem cov roj oxide ua ntej Vuam - Tsis txhob siv tus txhuam hniav kov tau, vim nws tuaj yeem paug cov txhuas.
- Kev tu cov kuab tshuaj: Acetone lossis isopropyl cawv kom tshem roj, roj, lossis av los ntawm qhov chaw ua haujlwm.
- Thaum tshav kub kub - cov hnab looj tes tiv thaiv hnab looj tes thiab kaus mom hlau: Txhuas cuam tshuam ntau dua arc lub teeb ntau dua li cov hlau, yog li lub kaus mom hlau nrog qhov ntxoov ntxoo 10 {lens yog qhov tseem ceeb. Cov hnab looj tes tawv thiab nplaim-resistant cov khaub ncaws tiv thaiv tiv thaiv cov txim taws thiab cua sov.
Kauj Ruam - by -}}}}}}}}}}}}}}}}}}}}}} Ruam cov txheej txheem rau txhuas lo rau txhuas lo rau txhuas lo
Npaj lub workpiece
- Tshem cov oxide txheej: Siv cov txheej txheem sib koom ua ke nrog cov hlau stainless hlau kom txog thaum lub ntsej muag ci thiab dawb huv. Cov kauj ruam no tsis yog {{1} {2} Hais tau zoo dua li txhuas 1,220 degree.
- Huv si nrog cov kuab tshuaj: Siv cov roj txhuam hniav uas muaj acetone tshem cov roj, ntiv tes, lossis seem av. Hnav cov hnab looj tes huv tom qab kom tsis txhob muaj qhov chaw ua haujlwm.
- Bevel Tuab Khoom Siv: Rau txhuas ntau dua 1/4 nti dua, bevel cov npoo ntawm 30-45℃lub kaum ntse ntse los xyuas kom meej tag nrho cov kev nkag mus. Qhov no pab tau weld ncav cuag tob rau hauv kev sib koom tes, tsim kom muaj kev sib raug zoo.
Teeb tsa cov ntaub ntawv
Thaj yeeb: Teeb cov welder rau dcep (ncaj qha rau electrode zoo). Qhov kev polarity no txhim kho lub arc muaj peev xwm tsoo cov oxides thiab txhim kho cov tshuaj flux.
Khoom noj qab haus huv: Kho raws li electrode loj thiab cov khoom tuab. Raws li pib pib:
- 3/32 nti Electrode: 100-150 amps
- 1/8 nti electrode: 150-200 amps
- 5/32 nti Electrode: 200-250 amps
Kuaj cov chaw rau ntawm seem txhuas ua ntej - Tsis tshua muaj kev noj haus tsis zoo; Ntau dhau qhov ua rau hlawv -} los ntawm lossis warping.
Vuam Technique Rau Txhuas Sib Tw
- Tawm tsam ARC thiab tswj hwm ib qho ntev Arc ntev: Aluminium qis melting taw tes txhais tau tias lub ARC yuav tsum tau ceev kom luv (1/8 txog 1/4 nti) kom tsom tshav kub ntawm kev sib koom ua ke. Ib lub arc ntev yuav tsim lub ntsej muag, porosity, lossis tsis tiav fusion.
- Mus Ncig Ceev: Txav nrawm dua li nrog cov hlau - Txhij Txhuas Txhuas ua kom kub sai, yog li qeeb qeeb tau ua rau cov hlau ua kom sov, ua rau nws ua kom tawg lossis yaj. Tsom rau lub zog khov kho, kom nruj kom ua kom lub pas dej reld me me thiab tswj tau.
- Hluav taws xob lub: Tuav cov electrode ntawm 10-15℃kaum sab xis (me ntsis thawb rau pem hauv ntej) kom muaj cua sov ncaj qha rau hauv kev sib koom ua ke. Tsis txhob rub lub electrode, raws li qhov no tuaj yeem ntxiab flux residue hauv Weld.
- Saib rau fusion: Chav Weld yuav tsum tau yaj ob qho tib si lub hauv paus hlau thiab cov electrode. Yog hais tias lub pas dej zoo li "txias" (Lumpy lossis tsis sib xws), nce kev amperage lossis qeeb mus ncig ua si nrawm me ntsis.
Post -} weld tu
Aluminium lo vuam nplooj fluc nyob rau ntawm Weld, uas yuav tsum tau muab tshem tawm kom tiv thaiv corrosion:
- Txhuam thaum sov: Thaum lub weld txias txaus los lis (tab sis tseem sov), siv lub stainless hlau txhuam txhuam kom txhuam kom dhau slee.
- Tshuaj Tu (rau Kev Ncaj Ncees: Rau cov ntawv thov zoo li cov kev ua haujlwm marine lossis cov txheej txheem weld hauv cov pa roj hmab me me (piv txwv li 10% nitric acid) kom yaj cov tawv ncauj flux. Yaug kom huv si nrog dej tom qab mus rau nruab nrab cov kua qaub.
- Soj ntsuam rau tej yam tsis xws luag: Txheeb xyuas cov kab nrib pleb, porosity, lossis undercutting. Flux residue tuaj yeem zais cov flaws, yog li kom huv huv yog qhov tseem ceeb ua ntej tshuaj xyuas.
Cov kev sib tw thiab cov kev txwv
Txhuas Cais Vuam yog qhov nrov tshaj li Mig lossis TIG rau qhov laj thawj:
- Porosity pheej hmoo: Flux txheej yuav tsis muaj kev tiv thaiv zoo li Mig / TIG cov roj av, ua kom muaj kev nce qib roj hauv Weld.
- Muaj kev txwv: Tsis zoo li Mig / Tsov, txhuas lo vuam yog qhov zoo tshaj plaws rau cov chaw tiaj tiaj lossis kab rov tav. Ntsug los yog overhead vuam yog qhov nyuaj vim yog Molten da cov nyiam rau Sag.
- Nyias Khoom Sib Tw: VUAM TXHUAS TASTER TSHAJ 1/4 nti muaj kev pheej hmoo- heev} heev}
- Flux residue teeb meem: Yog tias tsis tau tshem tawm tag nrho, flux tuaj yeem nqus tau noo noo thiab ua rau lub sijhawm ua kom huv sijhawm, ua rau nws tsis haum rau sab nraum zoov lossis quav ntsej muag tshwj tsis yog huv si tshwj tsis yog huv si.
Thaum Twg Yuav Xaiv Aluminium Cais Vuam
Pas vuam aluminium ci ntsa hlau hauv cov xwm txheej tshwj xeeb:
- Kev kho kom tiav: Thaum Mig / TIG cov khoom siv tsis tau (piv txwv li, kho cov cuab yeej ua liaj ua teb lossis siv cov khoom siv ua ntej ntawm-}} Tus xaib yog portable thiab yuav tsum tau teeb tsa.
- Tuab Khoom Vuam: Rau txhuas 1/4 nti los yog tuab dua, qhov kub siab ntawm pas vuam vuam tuaj yeem ua kom nkag mus.
- Tsawg -} suice project: Aluminium lo electrodes yog pheej yig dua Mig Rolls lossis Tig Rods, thiab lo Welders feem ntau muaj nqis ntau dua tshwj xeeb txhuas vuam tshuab.
Cov lus qhia kawg rau kev ua tiav
- Xyaum rau seem: Aluminium coj txawv dua li cov hlau -} Siv sijhawm kuaj cov chaw ntawm seem ntawm tib alloy thiab tuab.
- Khaws Cov Hluav Taws Xob Qhuav: Flux nqus cov dej noo, uas ua rau porosity. Cov khw muag khoom txhuas hauv cov thawv ntim khoom lossis lub cub (khaws cia ntawm 250℃f) los tiv thaiv Dampness.
- Tsis txhob overheating: Aluminium Warps yooj yim - clamp lub workpiece mus rau ib tug rigid nto (zoo li lub rooj steel) kom txo qis distortion.
Thaum lub sij hawm txhuas cov vuam yog qhov nyuaj, nws yog qhov kev txawj ntse rau kev kho lossis cov phiaj xwm tuab thaum lwm txoj hauv kev tsis nkag mus. Nrog kev npaj tsim nyog, cov txheej txheem hluav taws xob zoo, thiab cov txheej txheem ceev, koj tuaj yeem ua tiav muaj zog, txhim khu kev ua kom tau txais kev ntxuav thiab zoo.
