Txheej txheem cej luam ntawm Ob Alloys
5052 thiab 5754 belongs rau 5xxx series ntawm txhuas-magnesium alloys, uas magnesium yog lub hauv paus tseem ceeb ntxiv dag zog rau lub cev. Lawv tsis tuaj yeem kho cua sov, yog li lub zog yog tsim los ntawm kev ua haujlwm txias, thiab cov coils tau nkag rau hauv tempers los ntawm annealed O mob mus rau strain- hardened tej yam kev mob xws li H14, H16 thiab H18.
5052 muaj 2.2% mus rau 2.8% magnesium nrog 0.15% mus rau 0.35% chromium, uas ua kom cov qauv nplej thiab txhim kho corrosion kuj . 5754 muaj 3.1% mus rau 3.9% magnesium nrog manganese thiab chromium ntxiv, muab nws lub zog ntau dua thiab zoo dua ductility dua li 5052 rau cov qauv thiab cov ntawv thov. Ob qho kev sib xyaw yog txhais los ntawm EN 573-3, thiab cov coils feem ntau muab rau ASTM B209, EN 485-2 thiab GB / T 3880.
Cov khoom tseem ceeb piv
Kev tiv thaiv corrosion: ob qho tib si alloys tsim cov txheej txheej tiv thaiv oxide uas tiv thaiv dej hiav txwv, dej tshiab thiab tshuaj me me zoo dua li cov ntshiab txhuas lossis feem ntau 3xxx alloys. Cov ntsiab lus magnesium siab dua ntawm 5754 muab nws ib qho ntug hauv cov dej ntsev hnyav thiab cov kev pabcuam tshuaj lom neeg, thaum 5052 muab kev tiv thaiv zoo rau kev siv sab hauv tsev thiab sab nraum zoov.
Formability: ob qib tau yooj yim txiav, txiav, khoov, stamped, sib sib zog nqus kos thiab welded. 5754 muaj ntau dua ductility, uas txhawb nqa kev ua haujlwm hnyav, thaum 5052 paub txog tus cwj pwm zoo ib yam hauv cov txheej txheem tsim khoom.
Lub zog: nyob rau hauv cov mob annealed, 5052 muaj ib tug raug tensile lub zog ntawm 190 mus rau 240 MPa thiab 5754 nyob ib ncig ntawm 200 mus rau 250 MPa; nyob rau hauv kev ua hauj lwm- hardened tempers qhov tseem ceeb nce nrog rau qib ntawm kev ua hauj lwm txias, nrog rau ib tug ntau yam extensions mus rau roughly 260 mus rau 290 MPa nyob ntawm qhov kub thiab txias. Rau kev tsim qauv, qhov kev lees paub yam tsawg kawg nkaus hauv EN 485-2 lossis ASTM B209 rau kev kub ntxhov tshwj xeeb yuav tsum tau siv.
Qhov hnyav: qhov ceev ntawm ob qho tib si alloys yog ze li ntawm 2.68 mus rau 2.69 g / cm3, uas ua rau cov coils lub teeb yuag rau kev thauj mus los thiab fabrication thiab txhawb nqa qhov hnyav ntawm cov khoom tiav.
Nto thiab xov: qhov du, zoo ib yam ntawm ob lub coils txais anodizing, hmoov txheej, pleev xim thiab txhuam hniav . 5052 tshwj xeeb yog paub zoo rau cov xim zoo ib yam anodized, thaum 5754 feem ntau muab nrog lub zeb tiav rau kev siv cov qauv.
Cov ntsiab lus tseem ceeb
5052: aluminium tshuav nyiaj li cas; magnesium 2.2% mus rau 2.8%; chromium 0.15% mus rau 0.35%; silicon mus txog 0.25%; hlau mus txog 0.40%; tooj liab mus txog 0.10%; zinc txog li 0.10%.
5754: aluminium tshuav nyiaj li cas; magnesium 3.1% mus rau 3.9%; manganese 0.50% mus rau 0.80% (nyob rau hauv tus qauv txwv); chromium txog 0.30%; silicon mus txog 0.40%; hlau mus txog 0.40%; tooj liab mus txog 0.10%; zinc txog li 0.20%.
Ob lub alloys khaws tag nrho cov impurities qis, thiab cov kev txwv meej yuav tsum tau lees paub tiv thaiv EN 573-3 lossis cov qauv siv hauv lub tebchaws rau kev txiav txim.
Daim ntawv thov
Automotive: 5052 yog siv rau sab hauv trims, qhov rooj vaj huam sib luag, cov ntaub thaiv npog cua sov thiab cov khoom siv roj tank qhov chaw tsim thiab cov nqi teeb meem . 5754 raug xaiv rau lub cev vaj huam sib luag, chassis Cheebtsam thiab marine automotive qhov chaw uas muaj zog dua thiab sib sib zog nqus - kos duab kev ua tau zoo.
Kev tsim kho: 5052 yog siv rau phab ntsa cladding, qab nthab panels, vov tsev ntawv thiab cov khoom siv los nag, tshwj xeeb tshaj yog nyob rau qhov chaw anodized tiav tau teev tseg . 5754 suits structural cladding, tank linings thiab xav tau cov khoom vaj tse.
Marine thiab offshore: ob qib ua haujlwm hauv nkoj hulls, decks thiab ntug hiav txwv; 5754 yog qhov zoo dua qhov xav tau lub zog ntau dua, thiab 5052 npog cov dej num dav dav hauv kev lag luam.
Kev lag luam dav dav: tso tsheb hlau luam, qhov chaw siab, cov khoom siv hluav taws xob, cov ntaub ntawv hlau thiab cov neeg siv khoom siv ob qho tib si alloys raws li qhov sib npaug ntawm lub zog, formability thiab corrosion kuj yuav tsum tau.
Kev muab khoom thiab kev txiav txim siab zoo
Coils muaj nyob rau hauv thicknesses li ntawm 0.2 hli mus rau 6.0 hli, dav ntawm 800 hli mus rau 2500 hli, thiab luj ntawm 300 kg mus rau 3000 kg, nrog puab diameters ntawm 508 hli los yog 610 hli raws li tus qauv. Kev lees paub zoo suav nrog kev txheeb xyuas qhov sib xyaw ua ke los ntawm kev kho qhov muag emission spectrometry, kev sim tshuab, kev tshuaj xyuas saum npoo thiab ntsuas qhov ntev, nrog cov ntaub ntawv ntsuas cov khoom muaj rau txhua lub kauj. Rau cov zaub mov- thov hu rau daim ntawv thov, lees paub qhov kev ua raws cai nrog tus neeg muag khoom.
FAQ
Q1: Dab tsi yog qhov txawv ntawm 5754 thiab 5052?
Cov ntsiab lus magnesium . 5754 muaj li ntawm 3.1% mus rau 3.9% magnesium piv rau 2.2% rau 2.8% rau 5052, uas muab 5754 ntau zog thiab ductility rau cov qauv siv.
Q2: Cov hlau twg yog qhov zoo dua rau cov dej qab ntsev ib puag ncig?
Ob leeg ua tau zoo, tab sis 5754 muaj qhov zoo me me hauv cov dej ntsev thiab cov tshuaj siv tshuaj vim nws cov ntsiab lus magnesium siab dua.
Q3: Cov coils no puas tuaj yeem ua anodized?
Yog lawm. Ob lub alloys lees txais anodizing, thiab 5052 tshwj xeeb yog sau tseg rau qhov zoo ib yam, zoo nkauj anodized tiav.
Q4: Dab tsi tempers muaj?
Cov tempers muaj xws li O, H14, H16 thiab H18, nrog rau lwm yam strain- hardened thiab stabilized tempers muaj nyob ntawm daim ntawv thov.
Q5: Puas yog cov hlau no tuaj yeem txuas tau?
Yog lawm. Ob qho tib si weld zoo nrog MIG, TIG thiab kev tiv thaiv kev siv cov 5xxx muab tub lim, thiab lawv tau siv dav hauv cov qauv welded.
Q6: Cov qauv twg npog 5754 thiab 5052 coils?
Cov ntaub ntawv siv feem ntau yog ASTM B209, EN 485-2 thiab GB / T 3880, nrog rau cov tshuaj muaj pes tsawg leeg txhais los ntawm EN 573-3.