Vim li cas 5083 thiab 5086 Aluminium Phaj Suit Marine Service
Vim tias lawv lub zog, qhov hnyav thiab tsis kam tiv thaiv corrosion, 5083 thiab 5086 txhuas daim hlau yog cov kev xaiv zoo tshaj plaws rau kev tsim nkoj thiab kev siv dej hiav txwv. Ob leeg koom nrog 5xxx series, aluminium -magnesium-manganese tsev neeg engineered los tiv thaiv cov dej ntsev ib puag ncig thaum tswj kev ua haujlwm zoo, kev tiv thaiv corrosion thiab yooj yim ntawm fabrication. Tsis yog cov hlau tsis muaj cua sov- kho tau, yog li cov qauv welded khaws cov feem ntau ntawm niam txiv lub zog hlau es tsis txhob softening hauv tshav kub- cuam tshuam cheeb tsam.
Cov qib no yog siv tau zoo tshaj li kev tsim nkoj: cov nkoj siab, cov khoom siv tub yees, cov khoom siv drilling, cov tsheb thauj khoom, tsheb thauj khoom, cov khoom siv dav hlau, kev sib txuas lus thiab kev lag luam kev lag luam tag nrho cia siab rau lawv cov kev sib xyaw ua ke thiab kev sib txuas.
Chemical Composition thiab Mechanical Properties Muab piv
Ob lub alloys sib txawv hauv cov ntsiab lus magnesium . 5083 yog 4.0-4.9 feem pua magnesium nrog 0.40-1.0 feem pua manganese, thaum 5086 nqa 3.5-4.5 feem pua magnesium nrog 0.20-0.70 feem pua manganese. Qhov siab dua magnesium qib ntawm 5083 nce tensile thiab tawm lub zog, whereas 5086 nyiam formability thiab weld ductility.
| Element | 5083 | 5086 |
|---|---|---|
| Mg | 4.0-4.9 feem pua | 3.5-4.5 feem pua |
| Mn | 0.40-1.0 feem pua | 0.20-0.70 feem pua |
| Cr | 0.05-0.25 feem pua | 0.05-0.25 feem pua |
| Si | 0.40% max | 0.40% max |
| Fe | 0.40% max | 0.40% max |
| Cu | 0.10% max | 0.10% max |
| Zn | 0.25% max | 0.25% max |
| Ti | 0.15% max | 0.15% max |
| Al | Tseem tshuav | Tseem tshuav |
| Khoom | 5083 Aluminium Phaj | 5086 Aluminium Phaj |
|---|---|---|
| Tensile zog | 275-310 MPa | 240-275 MPa |
| Yield zog | 125-155 MPa | 115-145 MPa |
| Elongation | 12-15 feem pua | 12-15 feem pua |
| Qhov ntom | Txog 2.66 g / cm3 | Txog 2.66 g / cm3 |
| Elastic modulus | Txog 70 GPa | Txog 70 GPa |
| Corrosion kuj | Exceptional nyob rau hauv marine ib puag ncig | Zoo heev nyob rau hauv marine ib puag ncig |
| Weldability | Zoo heev, tsawg heev cracking txaus ntshai | Zoo, haum rau feem ntau cov txheej txheem vuam |
| Formability | Nruab nrab mus rau siab | Siab, zoo tagnrho rau cov duab complex |
Corrosion Resistance thiab Marine Finishes
Cov ntsiab lus magnesium siab ntawm ob lub alloys tsim cov txheej txheem tiv thaiv oxide uas tiv thaiv cov dej ntsev, chlorides thiab atmospheric raug, uas yog vim li cas cov qib siv rau cov hulls, decks thiab submerged Cheebtsam. Phaj rau kev sib cuag dej hiav txwv yog nkag rau hauv H116 lossis H321 temper, vim tias cov tempers no tau tsim nrog tswj microstructure uas tiv thaiv intergranular corrosion thiab exfoliation. Yog xav tau kev tiv thaiv ntxiv, anodic oxidation lossis epoxy txheej txheej tuaj yeem siv tau. Kev pabcuam kub tsis tu ncua kuj tseem yuav raug txiav txim siab: qhov ntev ntev ntawm qhov siab ntawm -magnesium alloys siab tshaj li 65 degrees Celsius tuaj yeem txhawb kev nkag siab ntawm cov ciam teb nplej, uas yog vim li cas qis dua - qib magnesium xws li 5454 yog qhov nyiam rau cov dej kub tanker.
Vuam thiab Fabrication Cwj Pwm
Ob lub alloys tau sib xws nrog TIG, MIG thiab laser vuam thiab tsis pom qhov tseem ceeb embrittlement thaum raug muab tub lim hlau thiab cov txheej txheem siv . 5083 yog qhov zoo dua rau cov welds tseem ceeb vim tias nws qhov kev pheej hmoo qis dua thiab ruaj khov H116 lossis H321 microstructure muab cov khoom sib koom ua ke ntau dua, thaum 5086 muaj qhov zoo dua khoov thiab ncab formability rau cov duab nyuaj, 116 Filler metals 5356 thiab 5183 yog cov kev xaiv ib txwm muaj, thiab cov txheej txheem vuam tsim nyog yuav tsum phim lub phaj temper thiab tuab yuav tsum tau koom nrog.
Shipbuilding thiab Offshore Applications
Kev tsim kho lub cev: plhaub plating, bulkheads thiab thav duab.
Cov txheej txheem lawj: flooring, walkways, hatches thiab access covers.
Superstructures: masts, cabins, wheelhouse panels thiab cua tshuab.
Tank thiab kav dej: roj tank, tank dej tshiab thiab seawater pipelines.
Offshore installations: platform modules, gangways thiab corrosion-resistant panels.
Phaj feem ntau raug txiav txim rau ASTM B209 rau txhuas ntawv thiab phaj thiab rau ASTM B928 rau marine phaj nyob rau hauv H116 thiab H321 tempers, nrog tshuaj muaj pes tsawg leeg txheeb xyuas EN 573-3 thiab txhua yam khoom tiv thaiv EN 485-2. Kev faib tawm hauv zej zog kev pom zoo los ntawm lub cev xws li ABS thiab DNV feem ntau xav tau rau lub plhaub thiab cov khoom siv, thiab daim ntawv pov thawj zeb yuav tsum tau ua raws li cov cua sov.
Xaiv Ntawm 5083 thiab 5086
5083 yog qhov kev xaiv zoo rau siab -cov khoom siv kev ntxhov siab uas xav tau lub zog siab tshaj plaws, suav nrog lub plhaub plating, plating hauv qab, lub hauv paus ntawm lub cav thiab hnyav -cov haujlwm tuav. 5086 haum rau cov khoom tsim thiab cov nqi- cov haujlwm tseem ceeb uas qhov kev sib txuas ntxiv tseem ceeb dua li qhov kawg ntawm lub zog, piv txwv li cov khoom siv sab hauv, cov nkoj me me thiab cov khoom siv loj. Ob lub alloys muab kev cia siab ntev ntev hauv cov dej hiav txwv ib puag ncig los ntawm kev sib txuas cov kav ntev, kev tiv thaiv corrosion thiab yooj yim ntawm fabrication, thiab qhov kev pab cuam tsis zoo ib yam li marine engineers yuav tsum tau sab laj ua ntej qib kho.
Cov lus nug nquag
Q: Puas yog 5086 muaj zog dua 5083?
Tsis yog . 5083 muaj magnesium ntau dua, muab lub zog tensile ntawm 275-310 MPa tiv thaiv 240-275 MPa rau 5086, yog li 5083 yog qhov muaj zog ntawm ob qib.
Q: Cov hlau twg yog qhov yooj yim rau kev tsim?
5086 yooj yim rau kev tsim. Nws cov ntsiab lus magnesium qis thiab qis ua haujlwm - hardening tus nqi muab zoo dua khoov thiab ncab kev ua haujlwm, ua rau nws haum rau cov duab nyuaj thiab nruj khoov radii.
Q: Puas yog 5083 thiab 5086 muaj nyob rau hauv marine tempers?
Yog lawm. Ob leeg yog muab rau hauv H116 thiab H321 tempers rau seawater kev pab cuam, nrog rau O, H111 thiab H112 tempers rau tsim thiab welded lug.
Q: Puas yog 5083 thiab 5086 tuaj yeem txuas ua ke?
Yog lawm. Ob leeg tsis yog -kub- kho tau 5xxx alloys thiab yog welded nrog 5356 lossis 5183 muab tub lim. Cov txheej txheem tsim nyog yuav tsum tau siv rau kev sib koom ua ke.
Q: Tus qauv twg npog marine aluminium phaj?
ASTM B928 npog marine phaj hauv H116 thiab H321 tempers, ASTM B209 npog dav txhuas ntawv thiab phaj, EN 573-3 txhais cov tshuaj muaj pes tsawg leeg thiab EN 485-2 txhais cov khoom siv kho tshuab.
Q: Cov hlau twg yuav tsum tau siv rau lub plhaub plating?
5083 nyob rau hauv H116 los yog H321 temper yog tus qauv xaiv rau hull plating vim hais tias nws muaj lub siab tshaj plaws lub zog thiab qhov zoo tshaj plaws seawater corrosion kuj ntawm ob qib.
