1.What yog Aluminium Alloy Vuam Qws
Aluminium alloy welding pas nrig yog hais txog cov txheej txheem vuam ntawm aluminium alloy cov ntaub ntawv. Aluminium alloy muaj lub zog loj thiab lub teeb hnyav. Cov txheej txheem vuam loj yog phau ntawv TIG vuam (tsis yog MIG vuam), tsis siv neeg TIG vuam thiab MIG vuam (MIG vuam). Lub hauv paus hlau, vuam hlau, tiv thaiv roj thiab vuam cov khoom siv yog qhov xav tau
2. Dab tsi yog Lub ntsiab vuam txoj kev ntawm Alloy Alloy Vuam pas nrig
1. Argon tungsten arc vuam ：
TIG welding feem ntau yog siv rau txhuas lub zog, uas yog txoj hauv kev ua haujlwm vuam zoo. Txawm li cas los xij, cov cuab yeej ntawm TIG vuam yog qhov nyuaj dua, thiab nws tsis tsim nyog los ua haujlwm hauv qhov chaw qhib.
2. Ua hauj lwm vuam ua vuam thiab vuam vuam
Txoj kev siv vuam no tuaj yeem siv los siv weld aluminium alloy sheet nrog tuab tsawg dua 5mm. Txawm li cas los xij, cov cuab yeej siv hauv kev siv vuam ntau yog qhov nyuaj, nrog lub siab vuam tam sim no thiab cov khoom lag luam siab, uas yog qhov tshwj xeeb tshaj yog tsim rau kev lag luam loj ntawm qhov chaw thiab cov khoom siv.
3. Pulsed argon arc vuam
Pulsed argon arc vuam (TIG) tuaj yeem txhim kho qhov ruaj khov ntawm cov txheej txheem vuam, thiab qhov ntsuas tau tuaj yeem hloov kho kom tswj tau arc zog thiab weld tsim. Lub vuam vuam muaj cov deformation me me thiab cov tshav kub cuam tshuam loj, qhov tshwj xeeb tshaj yog haum rau nyias phaj, txhua txoj hauj lwm vuam thiab vuam ntawm cov forged aluminium, tawv txhuas thiab super nyuaj txhuas nrog muaj zog kub rhiab heev.
4. Kev sib txhuam stirs vuam
Kev sib txhuam do vuam (FSW) tau siv dav hauv cov qauv hlau teeb, xws li txhuas hlau thiab magnesium alloy. Lub ntsiab tseem ceeb ntawm cov qauv no yog lub vuam kub qis dua qhov chaw yaj ntawm cov khoom, uas tuaj yeem zam qhov tsis xws xws li cov kab nrib pleb thiab qhov hws los ntawm fusion vuam.
3. Dab tsi yog qhov zoo siv ib puag ncig ntawm Alloy Alloy Vuam pas nrig
1. Yuav tsum muaj rau hauv ib puag ncig chaw cia thiab cov khoom siv pabcuam hauv kev siv tshuab txhuas cov hlau ua cov vuam ntau lawm
(1) Qhov yuav tsum muaj rau kev tsim khoom thiab cia kub thiab av noo
Cov chaw tsim khoom thiab ntim chaw ntawm aluminium alloy yuav tsum yog cov plua plav, tsis muaj dej thiab qhuav. Qhov kub thiab txias ambient feem ntau tswj hwm saum 5℃, thiab cov av noo yog tswj hauv qab 70%. Sim ua kom ntseeg tau tias cov av noo ntawm lub vuam ib puag ncig tsis dhau siab. Cov av noo ntau dhau lawm yuav ua rau kom qhov tshwm sim ntawm lub qhov hws hauv qhov txuas, uas yuav cuam tshuam rau qhov zoo ntawm vuam. Cov nplaim hluav taws xob ntawm huab cua yuav ua rau tsis muaj roj txaus tiv thaiv, uas ua rau vuam pores. Lub tshuab cua khaub thuas tuaj yeem tsim los txhawm rau ua kom tsis txhob muaj yam ntxwv ntawm cua sab hauv los ntawm [2].
(2) Qhov xav tau rau kev siv vuam hlau thiab cua hose
Kev saib xyuas yuav tsum tau them rau qhov siv cov khoom siv vuam siv: cov hlau txhuas vuam hlau yuav tsum muab cais tawm ntawm cov hlau txuas, thiab cov kev pabcuam lub neej yuav tsum tsis pub tshaj 1a. Tom qab welding, coj tawm lub vuam hlau los ntawm kev siv lub tshuab vuam rau kev sib khi kho kom tsis txhob muaj paug. Huab cua muab hoses ntawm cov ntaub ntawv sib txawv muaj qhov sib txawv rau ya raws ntawm cov dej noo, tshwj xeeb tshaj yog thaum cov pa xa hluav taws xob siab, cov nyhuv ntawm cov huab cua mov hose yog pom tseeb dua. Cov cua xa hose yog qhov zoo tshaj plaws los siv Teflon hose (Teflon).
4. Yuav ua li cas xaiv cov cuab yeej ntawm Aluminium Alloy Vuam qws
Txog aluminium alloy vuam, nws yog qhov zoo dua los siv taw tes kev siv cov cuab yeej los txo cov chaw sib tiv tauj ntawm cov cuab yeej thiab cov haujlwm. Yog tias lub cuab tam nyob rau hauv qhov chaw sib cuag nrog rau qhov chaw ua haujlwm, nws yuav sai sai qhov kub ntawm qhov chaw ua haujlwm thiab ua kom nrawm ntawm lub pas dej tsis huv, uas tsis yog qhov zoo rau kev tshem tawm ntawm weld pores. Lub siab ntawm cov cuab yeej siv hydraulic yog tswj tau zoo nyob rau ntawm 9～9.5MPa.
Kev kub siab me me tsis tuaj yeem ua tiav lub hom phiaj los tiv thaiv kev deformation, tab sis ntau dhau qhov siab yuav ua rau kev cia siab ntawm aluminium alloy qauv. Vim tias txoj kab hluav taws xob loj ntxiv qhov sib tshooj ntawm aluminium alloy thiab tsis zoo high-temperature plasticity, muaj kev cuam tshuam loj hauv siab thermal yuav tshwm sim thaum vuam, uas yuav ua rau cov kab nrib pleb hauv aluminium alloy qauv.
5. Yuav xaiv li cascov hom ntawm Alloy Alloy Vuam pas nrig
1. Xaiv xaim hlau
Rau 6005A, 6082, 5083 lub hauv paus hlau, xaiv vuam hlau qib yog 5087 / AlMg4.5MnZr, 5087 vuam hlau tsis yog tsuas muaj zoo tawg zoo, zoo heev pore tsis kam, thiab lub zog ua tau zoo. Rau kev xaiv ntawm vuam hlau specifications, vuam hlau nrog lub taub loj yog qhov xav tau. Tib vuam filling nyiaj yog qhov nyhav tib yam ntawm vuam hlau. Qhov saum npoo ntawm thaj chaw ntawm cov hlau loj loj thiab cov hlau me sib npaug tau zoo me dua. Yog li no, cov pa phem saum npoo ntawm cov hlau loj loj dua thiab cov hlau me me dua me me, qhov ntawd yog, qhov chaw muaj oxidation me dua, thiab lub vuam zoo yog yooj yim dua kom ua tau raws li cov cai. Cov. Tsis tas li ntawd, cov txheej txheem xaim kev pub mis ntawm txoj kab loj loj vuam hlau yog yooj yim dua rau kev khiav lag luam. Feem ntau, 1.2 hli txoj kab uas hla vuam hlau yog siv rau cov khoom siv nrog cov tuab uas tsawg dua 8mm, thiab 1.6 hli inch vuam kab hlau siv rau cov khoom siv hauv paus nrog cov tuab 8mm thiab siab dua. Lub tshuab tsis siv neeg vuam tshuab siv lub hli 1.6 hli diam vuam hlau.
2. Xaiv ntawm kev tiv thaiv roj
Ar100% yog tus cwj pwm los ntawm kev ruaj khov arc thiab yooj yim arc ignition. Feem ntau, Ar100% siv rau vuam ntawm cov khoom siv nrog phaj tuab hauv qab 8mm. Rau lub hauv paus hlau ntawm 8 hli thiab sab saud thiab lub welds nrog lub qhov pore siab yuav tsum tau, Ar70% + He30% yog siv rau vuam. Cov yam ntxwv ntawm helium gas yog: 9 npaug ntawm cov thermal conductivity ntawm argon roj, vuam kev nrawm dua, txo qhov porosity, thiab nce nkag. Thaum vuam vias cov paib tuab, kev nkag mus tob ntawm Ar100% thiab Ar70% + He30%. Tus nqi roj ntws tsis loj npaum li sai tau. Kev nrawm dhau yuav ua rau muaj kev kiv, uas ua rau muaj kev tiv thaiv tsis txaus ntawm lub pas dej molten. Huab cua reacts nrog lub tso rau hlau, uas yuav hloov cov qauv weld, txo kev ua haujlwm, thiab nce qhov nyiam ntawm vuam pores.
