Mastering lub Weldability ntawm 5086 Aluminium Tubes

Hauv marine engineering, shipbuilding, thiab siab nkoj fabrication, kev ncaj ncees ntawm cov kav dej tsuas yog muaj zog raws li nws qhov tsis muaj zog weld. Thaum naval architects thiab structural engineers qhia cov 5086 aluminium tuberau ib qhov project, lawv ua li ntawd vim nws qhov zoo kawg nkaus tsis kam rau seawater corrosion thiab nws impressive un{0}}kub- kho lub zog.

Txawm li cas los xij, rau cov neeg tsim khoom thiab cov neeg ua haujlwm vuam ntawm lub khw hauv pem teb, cov lus nug tseem ceeb tshaj plaws yog, "Cov ntaub ntawv no zoo li cas tiag tiag, thiab dab tsi yog cov txheej txheem tseeb los tiv thaiv porosity, kub tawg, thiab kev ua haujlwm tsis ua haujlwm?

Raws li ib tug premier aluminium tubing chaw tsim tshuaj paus, peb ua ntau tshaj li muab raw cov ntaub ntawv. Peb muab kev daws teeb meem metallurgical. Nyob rau hauv phau ntawv qhia kev paub no, peb yuav rhuav tshem qhov kev ua tau zoo ntawm 5086 alloy, pom zoo kom cov xaim xaim xaim (xws li ER5356) xav tau, thiab muab cov kev daws teeb meem rau kev ua cov ntsiab lus mob.

Vim li cas 5086 Marine Qib Aluminium Yeeb Nkab Excels hauv Vuam

Yuav kom nkag siab yuav ua li cas rau vuam 5086, peb yuav tsum xub saib nws cov chemistry. Lub 5000-series alloys yog alloyed feem ntau nrog Magnesium (Mg).

Qhov loj tshaj qhov mob taw tes fabricators ntsej muag thaum vuam ntau alloys zoo li 6061-T6 yog qhov loj heev poob ntawm lub zogThaum tshav kub kub-Affected Zone (HAZ). Vim tias 6061 muab nws lub zog los ntawm kev kho cua sov, qhov kub siab ntawm cov vuam arc zoo "un-heat- kho" cov hlau, xau cov sib koom ua ke lub zog tawm los txog li 50%.

Cov5086 marine qib aluminium yeeb nkab, ntawm qhov tod tes, tsis yog -kub- kho tau. Nws muab nws lub zog los ntawm kev sib zog ua kom tawv nqaij (xws li H111 lossis H32 tempers) thiab cov tshuaj muaj zog ntxiv. Thaum tshav kub ntawm vuam yuav hauv zos anneal HAZ rov qab mus rau "O" (annealed) lub xeev, lub hauv paus hlau lub cev muaj zog tseem siab heev.

Qhov tshwm sim:Lub welded 5086 qauv muaj kev sib koom ua ke ntau dua, kev ua haujlwm qaug zog zoo dua, thiab zoo dua ductility nyob rau hauv cov khoom siv marine loads piv rau welded 6000-series alloys.

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Xaiv txoj cai Filler Hlau rau 5086 Aluminium Tube

Kev siv cov xaim xaim tsis raug cai yog tus lej ib qho ua rau lub vuam tsis ua haujlwm, ua rau kub tawg lossis puas tsuaj galvanic corrosion hauv dej hiav txwv. Rau qhov5086 aluminium tube, kev lag luam- cov txheej txheem muab tub lim hlau yog kev vam khom rau magnesium kom haum rau cov khoom siv hauv paus.

1. ER5356 Filler Wire (Cov Qauv Kev Lag Luam)
Rau 90% ntawm marine thiab structural applications,TIAB SA 5356yog qhov kev xaiv zoo tshaj plaws thaum vuam 5086 raj.

Vim li cas nws ua haujlwm:Nws muaj 5% Magnesium, uas zoo kawg nkaus ua tiav 3.5% -4.5% Mg hauv 5086 lub hauv paus hlau. Thaum lub sij hawm vuam txheej txheem, ib tug me me ntawm magnesium vaporizes nyob rau hauv lub arc. Qhov ntxiv Mg nyob rau hauv ER5356 hlau them nyiaj rau qhov kev poob no, kom ntseeg tau tias qhov kawg weld puddle tswj nws lub zog thiab corrosion kuj.

Qhov zoo tshaj plaws rau:General marine piping, nkoj handrails, radar arches, thiab structural thav duab.

2. ER5183 Filler Wire (Rau Siab -Stress/High-Kev Siv Siab)
Yog tias koj welding5086 seamless aluminium tubingrau lub siab -siab hydraulic kab, LNG cryogenic system, los yog hnyav-lub luag haujlwm load- bearing hull ncej,TIAB SA 5183pom zoo.

Vim li cas nws ua haujlwm:Nws yog tsim los nrog me ntsis siab dua Manganese (Mn) dua li ER5356, muab lub zog tensile ntau dua thiab zoo dua tawg toughness nyob rau hauv qhov sib koom ua ke. Nws nquag teev tseg los ntawm kev faib cov koom haum (xws li DNV lossis ABS) rau cov txheej txheem welds nyuaj heev.

Ceeb Toom: Tsis txhob siv ER4043 (uas muaj silicon) rau vuam a5086 aluminium yeeb nkabyog tias cov khoom yuav raug rau cov dej hiav txwv. Lub silicon yuav tsim ib lub cell galvanic, ua rau kom ceev pitting corrosion.

Pom zoo 5086 Aluminium Vuam Txheej Txheem: TIG vs. MIG

Qhov kev xaiv ntawm cov txheej txheem vuam yog nyob ntawm phab ntsa thickness (WT) ntawm cov5086-H111 extruded rajthiab qhov yuav tsum tau nkag mus.

1. TIG Vuam (GTAW) – Rau nyias phab ntsa thiab Precision

Gas Tungsten Arc Vuam (TIG) tau pom zoo rau5086 aluminium kavnrog phab ntsa tuab ntawm qis dua 3 hli (kwv yees . 1/8 nti), xws li yacht handrails intricate yacht handrails los yog me me -inch roj kab.

Tam sim no:Yuav tsum siv Alternating Current (AC). Lub voj voog rov qab polarity ntawm AC arc blasts tawm ntawm cov tawv tawv aluminium oxide txheej, muab "kev txiav txim siab huv" ua ntej ntawm cov dej phwj tuaj.
Shielding Gas:100% Ntshiab Argon.
Tungsten electrode:Ntshiab Tungsten (Green) los yog Zirconiaated (xim av / Dawb) rau qhov ruaj khov AC arc.

2. MIG Vuam (GMAW) – Rau Hnyav phab ntsa thiab ceev

Rau tuab -walled5086 extruded structural raj(tshaj 3 hli / 1/8 nti) siv nyob rau hauv offshore platforms los yog hnyav lub nkoj, Gas Metal Arc Vuam (MIG) yog ntau npaum li cas.

Txheej txheem:Pulsed-MIG tau pom zoo. Nws tso cai rau kev nkag tau zoo heev ntawm cov kav dej tuab thaum tswj cov cua sov nkag los tiv thaiv kev kub nyhiab los ntawm cov hlau.
Shielding Gas:Rau cov qauv thicknesses, 100% Argon. Rau qhov tshwj xeeb tuab seamless raj (dhau 12 hli), qhov sib xyaw Argon / Helium (piv txwv li, 75% Ar / 25% Nws) yuav muab qhov kub kub thiab qhov tob tob.
Khoom siv:Ib txwm siv lub laub- rub rab phom lossis rab phom rab phom los pub cov mos ER5356 txhuas hlau.

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Yuav Tiv Thaiv Porosity Thaum Vuam 5086 Txhuas Tubing

Feem ntau tsis txaus siab fabricators muaj thaum vuam a5086 marine txhuas rajyog porosity (me me npuas npuas nyob rau hauv lub weld seam). Porosity tsis muaj zog rau qhov sib koom ua ke thiab yuav ua rau cov yeeb nkab ua tsis tau qhov kev ntsuas hydrostatic siab lossis kev tshuaj xyuas Ultrasonic (UT).

Porosity yuav luag tag los ntawmhydrogen contamination thiab tu tsis raug.Nov yog lub Hoobkas -pom zoo ua ntej-weld txheej txheem:

Defeat Oxide Txheej:Aluminium melts ntawm roughly 660℃(1220℃F), tab sis cov txhuas oxide txheej ntawm nws nto melts ntawm tshaj 2000℃(3600℃F). Yog tias koj tsis tshem tawm cov txheej txheem no, nws yuav ntxiab ya raws thiab impurities hauv qhov vuam.
Mechanical Cleaning:Vigorously txhuam cov weld sib koom nrog atshwj xeeb stainless hlau hlau txhuam(Tsis txhob siv txhuam uas tau kov cov hlau).
Tshuaj Degreasing:So cov kev sib koom tes thiab ER5356 muab tub lim hlau nrog acetone tshem tawm cov roj machining, txiav cov kua dej, lossis cov dej noo.
Weld tam sim ntawd:Thaum ntxuav, weld lub5086 aluminium yeeb nkabtsis pub dhau 8 teev ua ntej cov txheej txheem oxide tag nrho hloov kho.

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FAQ

Q1: Kuv puas tuaj yeem txuas 5086 txhuas raj rau 6061 txhuas phaj?

Teb: Yog, qhov sib txawv ntawm qhov sib txawv ntawm 5000-series thiab 6000-series yog ntau heev hauv kev tsim nkoj. Koj yuav tsum siv ER5356 muab tub lim rau qhov sib koom ua ke. Txawm li cas los xij, nco ntsoov tias sab 6061 yuav plam nws lub zog T6 nyob rau hauv thaj chaw muaj kev kub ntxhov, yog li cov qauv tsim yuav tsum suav rau thaj chaw tsis muaj zog.

Q2: Kuv puas yuav tsum tau preheat 5086 txhuas yeeb nkab ua ntej vuam?

Teb: Feem ntau, tsis muaj . 5086 yog qhov raug rau cov cua kub ntev heev. Preheating saum 65℃(150℃F) tuaj yeem ua rau muaj kev hloov pauv ntawm metallurgical uas ua rau muaj kev ntxhov siab corrosion tawg hauv dej hiav txwv. Tsuas yog siv lub teeb ua ntej kub heev (nyob ib ncig ntawm 30℃/ 85℃F) nruj me ntsis txhawm rau hlawv tawm ntawm qhov chaw condensation / noo noo yog tias koj vuam nyob rau hauv qhov chaw txias, ntub dej.

Q3: Vim li cas kuv cov welds tawg hauv qhov chaw (Kub Cracking)?

Teb: Centerline cracking feem ntau yog tshwm sim los ntawm ib tug tsis raug muab tub lim hlau los yog los ntawm kev tsiv mus los ceev heev, tsim ib tug nqaim, concave weld hlaws uas tsis muaj peev xwm tuav lub shrinkage kev nyuaj siab raws li cov txhuas cools. Xyuas kom tseeb tias koj siv ER5356 thiab qeeb me ntsis los tsim kom muaj qhov sib npaug, muaj zog vuam profile.

Q4: Koj lub Hoobkas ua li cas kom ntseeg tau tias cov kav dej tau npaj rau vuam thaum xa khoom?

Teb: Raws li cov chaw tsim khoom hwm, peb cov 5086 txhuas raj yog extruded siv qhov ntsuas kub thiab tiv thaiv thaum thauj khoom. Peb qhwv tag nrho cov ntaub ntawv hauv cov yeeb yaj kiab tsis muaj dej thiab siv cov desiccants hauv peb cov ntoo crates kom tsis muaj cov dej ntsev oxidation hnyav tshwm sim thaum hla dej hiav txwv, txuag koj cov welder cov sij hawm npaj.

Thov ib tug Quote rau hwm 5086 Tubes

Ib qho zoo meej weld pib nrog cov ntaub ntawv zoo meej. Yog tias koj tab tom nrhiav cov kav dej txhuas uas hnyav oxidized, tawm - ntawm - kam rau ua, lossis tsis raug alloyed, koj cov nqi vuam yuav nce siab.

Koom tes nrog ncaj qha -qhov chaw tsim khoom suav nrog hnyav-tonnage extruders, kev tswj tsis tau zoo, thiab muaj peev xwm ua pov thawj DNV / ABS.

Txhawm rau kom tau txais kev sib tw zoo heev, cov lus hais tshwj xeeb hauv 24 teev, thov xa email rau peb koj qhov kev xav tau tiag tiag:

Alloy & Temper: (e.g., 5086-H111, 5086-O)

Hom:Muaj tseeb Seamless (ASTM B210) lossis Cov Txheej Txheem Extruded (ASTM B241)

Qhov Loj:Sab nraud txoj kab uas hla (OD), Phab ntsa Thickness (WT), thiab txiav ntev

Ntim:(Tag nrho daim lossis kwv yees qhov hnyav hauv Metric Tons)

Kev ua haujlwm tshwj xeeb:(Xav tau beveling lossis kev cai chamfering rau kev npaj vuam?)

Txuj ci