5083 kub dov txhuas ntawv thiab phaj yog ib qho uas tsis yog - tshav kub- kho tau Al-Mg alloy uas tau dhau los ua cov khoom siv hauv kev tsim nkoj. Kub dov ua rau cov tuab, dav phaj xav tau rau lub plhaub plhaub, decks thiab bulkheads thaum khaws cov magnesium hauv cov khoom siv, yog li cov phaj tiav ua ke muaj zog, zoo heev seawater corrosion kuj thiab txhim khu kev qha weldability nyob rau hauv raws li -rolled mob.
Vim li cas Kub Rolled 5083 Plate Suits Shipbuilding
Shipyards ua hauj lwm nrog loj stiffened panels, yog li lawv xav tau dav phaj nrog zoo tuab tuab, ruaj khov flatness thiab kwv yees vuam tus cwj pwm. Kub dov 5083 teb tag nrho peb qhov yuav tsum tau ua, thiab nws cov ntsiab lus 4.0-4.9% magnesium muab nws cov kev tiv thaiv corrosion uas ua rau cov xim tsis muaj xim thiab ib nrab pleev xim rau hauv dej ntsev.
Corrosion tsis kam: cov hlau tiv taus dej hiav txwv, tshuaj tsuag ntsev thiab ntau yam tshuaj lom neeg, yog li hulls thiab decks kav ntev dua ntawm kev saib xyuas.
Lub zog-rau- qhov hnyav piv: kwv yees li ib feem peb ntawm qhov ntom ntom ntawm cov hlau nrog lub zog tensile muaj txiaj ntsig, uas txo qhov kev hloov pauv thiab txhim kho kev ceev thiab roj noj.
Weldability: MIG thiab TIG vuam nrog txuam 5xxx muab tub lim hlau muab lub zog, tawg -cov pob qij txha dawb yam tsis muaj kev tshaj tawm -weld heat treatment.
Formability: phaj tuaj yeem dov, nias thiab khoov rau hauv cov ntu nkhaus thaum lub nkhaus radii haum lub siab.
Nto: qhov kub dov tiav tuaj yeem ua anodized, primed lossis pleev xim rau thaum lub zeb nplai thiab cov roj nplaum tau raug tshem tawm.
Temper Selection thiab Mechanical Properties
Temper tswj qhov sib npaug ntawm lub zog, formability thiab tus nqi, thiab cov txiaj ntsig hauv qab no yog qib qis tshaj plaws uas tau teev tseg rau marine phaj. Tag nrho plaub lub tempers yog qib ruaj khov, yog li lawv khaws lawv cov khoom hauv kev pabcuam.
| Kub | Yield zog, Rp0.2 (MPa) | Tensile zog, Rm (MPa) | Elongation (%) | Hom kev siv |
|---|---|---|---|---|
| H111 | 125 feeb | 270 feeb | 12-16 | Tsim qhov chaw, maj mam stressed panels |
| H112 | 125 feeb | 275 nqi | 12-14 | Raws li - dov phaj, tsis yog - cov qauv tseem ceeb |
| H116 | 215 feeb | 305 nqi | 12 | Hulls, immersed thiab txaws -zone plating |
| H321 | 215 feeb | 305 nqi | 12 | Hulls thiab cov qauv xav tau kev ntxhov siab- corrosion resistance |
H116 thiab H321 yog tempers feem ntau teev rau hull plating vim hais tias lawv metallurgical mob yog tswj tshwj xeeb rau kev tiv thaiv intergranular thiab kev nyuaj siab-corrosion cracking nyob rau hauv seawater. H112 yog ib qho dav dav raws li -rolled mob rau phaj uas yuav tsis pom kev nyuaj siab, thiab H111 yog siv nyob rau hauv qhov tsim dominates.
Chemical Composition thiab Plate Data
Kev kho cua sov tsis tuaj yeem ntxiv dag zog rau cov hlau no, yog li kev tswj xyuas muaj pes tsawg leeg yog qhov tseem ceeb ntawm kev ua haujlwm. Qhov 5083 ntau yog nruj nruj, thiab qhov sib npaug ntawm lub rooj yog txhuas.
| Element | Cov ntsiab lus raug,% |
|---|---|
| Magnesium | 4.0-4.9 |
| Manganese | 0.40-1.0 |
| Chromium | 0.05-0.25 |
| Zinc | 0.25 max |
| Tooj | 0.10 max |
| Silicon | 0.40 max |
| Hlau | 0.40 max |
| Aluminium | Tshuav |
| Parameter | Ntau yam |
|---|---|
| Thickness | 2.0-300 hli |
| Dav | Txog li 2600 mm |
| Ntev | Mus txog 12000 mm |
| Nto | Kub dov, optionally trimmed thiab leveled |
| Qhov ntom | 2.66 g / cm3 |
| Melting ntau | Txog 570-640 C |
Daim ntawv thov ntawm Board thiab Offshore
Hull plhaub, hauv qab plating, sab plhaub thiab transoms rau workboats, barges, ferries, patrol crafts thiab pilot nkoj.
Main decks, chaw nyob decks, superstructures thiab wheelhouse structures.
Bulkheads, tank ciam teb, cav-chav tsev thiab partitions.
Dej, roj thiab tshuaj tanks, cofferdams thiab thauj pipelines, qhov twg cov alloy resists ob cargo thiab marine cua.
Offshore platform taug kev, nkag mus rau cov qauv, kev txhawb nqa ncej thiab helideck Cheebtsam.
Hatch npog, ramps, gangways thiab chaw thau khoom platforms, qhov twg qhov hnyav txo qis kev siv zog.
Fabrication, Vuam thiab Kev Tswj Xyuas Zoo
Txiav: plasma, waterjet, laser thiab mechanical shearing tag nrho ua haujlwm zoo; txiav ntug yuav tsum tau hnav ua ntej pleev xim.
Vuam: MIG nrog 5183 lossis 5356 muab tub lim hlau yog niaj hnub; TIG yog siv rau cov ntu nyias. Weld lub zog efficiency ntawm kwv yees li 93% nyob rau hauv tshav kub- cuam tshuam cheeb tsam txhawb kev siv welded kev tsim kho yam tsis muaj post-weld cua sov kho.
Kev sib sau: phaj yog khoov los yog dov txias rau dav dav radii; Kub sib sau ntawm 316 C thiab 482 C yog ua tau rau qhov hnyav dua.
Kev npaj: zeb nplai, dov roj thiab oxide yuav tsum tau muab tshem tawm ua ntej vuam thiab txheej, vim lawv ua rau porosity thiab tsis zoo adhesion.
Kev tshuaj xyuas: ultrasonic thiab radiographic kuaj ntawm lub pob tw welds, ntxiv rau qhov ntsuas qhov ntev ntawm cov tuab, flatness thiab squareness, paub meej tias kev nyab xeeb rau chav kawm pom zoo.
Kev txwv kub: tsis tu ncua kev pabcuam siab tshaj 65 C tsis pom zoo rau kev sib cuag dej hiav txwv, vim muaj kev nkag siab ntawm cov ciam teb nplej; cov alloy tseem tawv ntawm qhov kub thiab txias.
Cov lus nug nquag
Q: Dab tsi temper yog qhov zoo tshaj plaws rau nkoj hull plating?
H116 thiab H321 yog cov kev xaiv ib txwm muaj rau immersed thiab txaws-zone plating vim tias lawv qhov xwm txheej yog tswj tau los tiv thaiv intergranular thiab kev ntxhov siab-corrosion tawg hauv dej hiav txwv; H112 los yog H111 haum tsawg dua qhov tseem ceeb lossis ntau qhov tsim hnyav.
Q: Puas yog kub dov 5083 phaj zoo li cov ntawv txias dov?
Txias- dov tempers xws li H32, H34 thiab H38 ncav cuag lub zog ntau dua rau cov ntsuas nyias, thaum kub dov phaj hauv H116 lossis H321 muaj cov thickness ntau thiab dej hiav txwv- tsim nyog cov txheej txheem uas cov qauv hull xav tau.
Q: Dab tsi muab cov hlau yuav tsum tau siv rau 5083 phaj?
5183, 5356 lossis 5556 cov hlau muab tub lim yog tus qauv rau MIG thiab TIG vuam, muab cov pob qij txha uas phim cov kev ua haujlwm corrosion ntawm niam txiv phaj thiab tsis txhob kub tawg.
Q: Puas yog 5083 phaj xav tau kev tshaj tawm -weld cua sov kho?
Tsis yog. Cov hlau tsis muaj cua sov tuaj yeem kho tau raws li qhov xav tau ib txwm muaj, thiab cov pob qij txha welded ncav cuag li 93% ntawm niam txiv -hlau lub zog yam tsis muaj kev tshaj tawm -weld kev kho mob, uas yog vim li cas nws yog dav siv nyob rau hauv welded marine lug.
Q: Vim li cas lub melting ntau yog hais txog 570-640 C?
Alloying qis dua ob qho tib si solidus thiab cov kua dej txheeb ze rau cov ntshiab txhuas, yog li qhov ua tau zoo ntawm 5083 yog li 570-640 C es tsis yog 660 C melting point ntawm unalloyed aluminium.
Q: Yuav ua li cas loj npaum li cas kub dov 5083 phaj muab?
Thickness ntawm 2.0 hli mus rau 300 hli, dav txog li 2600 hli thiab ntev txog li 12000 hli yog muaj, nrog txiav - mus rau - cov phaj loj thiab cov ntawv qib siab ntau rau kev tsim nkoj.
