Thaum xaiv cov ntaub ntawv rau kev tsim kho, kev tsim khoom, lossis DIY tej yaam num, txhuas thiab hlau tsis xeb yog ob hom hlau nrov tshaj plaws. Tab sis dab tsi ua rau lawv txawv? Txawm koj yog ib tug engineer, ib tug neeg nyiam ua si, lossis tsuas yog xav paub xwb, kev nkag siab txog lawv qhov sib txawv tuaj yeem pab koj txiav txim siab tau zoo. Hauv tsab blog no, peb yuav rhuav tshem lawv cov khoom, daim ntawv thov, tus nqi, thiab ntau ntxiv—txhawb nqa los ntawm cov kws tshaj lij—los pab koj xaiv cov khoom siv zoo rau koj cov kev xav tau.
1. Cov Khoom Siv: Lawv Ua Los Ntawm Dab Tsi?
Qhov sib txawv tseem ceeb ntawm txhuas thiab stainless hlau yog nyob rau hauv lawv cov khoom sib xyaw.
Aluminiumyog ib hom hlau uas tsis hnyav, dawb-nyiaj pom muaj nyob rau hauv lub ntiaj teb lub plhaub. Txhuas ntshiab yog mos, yog li nws feem ntau yog sib xyaw nrog cov ntsiab lus xws li tooj liab, magnesium, lossis silicon los txhim kho lub zog. Piv txwv li, cov hlau txhuas 6061 uas siv dav dav muaj magnesium thiab silicon.
Hlau tsis xebyog ib qho hlau uas muaj tsawg kawg yog 10.5% chromium, uas tsim ib txheej oxide passive los tiv thaiv corrosionCov qib zoo li 304 stainless hlau kuj suav nrog nickel thiab carbon.
2. Lub zog thiab kev ruaj khov
Cov kev xav tau ntawm lub zog sib txawv ntawm daim ntawv thov, yog li cia peb piv lawv cov khoom siv kho tshuab.
Hlau tsis xeb:
Cov hlau tsis xeb muaj zog dua li txhuas, tshwj xeeb tshaj yog nyob rau hauv qhov chaw muaj kev ntxhov siab siab. Piv txwv li, qib 304 stainless hlau muaj lub zog tensile ntawm ~ 505 MPa, piv rau 6061 txhuas ~ 310 MPa.
Txhuas:
Txawm hais tias tsis muaj zog ntau los ntawm qhov ntim, txhuas muaj qhov sib piv ntawm lub zog thiab qhov hnyav zoo dua. Qhov no ua rau nws zoo meej rau cov khoom siv aerospace (xws li cov thav duab dav hlau) thiab kev lag luam thauj mus los uas txo qhov hnyav yog qhov tseem ceeb.
Yog li, stainless hlau muaj zog dua tag nrho, tab sis txhuas zoo dua thaum lub zog sib dua tseem ceeb.
3. Kev Tiv Thaiv Kev Xeb
Ob leeg hlau tiv taus corrosion, tab sis lawv cov mechanisms txawv.
Hlau tsis xeb:
Chromium nyob rau hauv cov hlau tsis xeb ua rau cov pa oxygen ua rau muaj ib txheej chromium oxide tiv thaiv. Cov txheej txheem no kho tau tus kheej tiv thaiv xeb, txawm tias thaum khawb. Cov qib zoo li 316 stainless hlau ntxiv molybdenum rau kev tiv thaiv dej ntsev thiab tshuaj lom neeg ntxiv.
Aluminium:
Aluminium ntuj tsim ib txheej oxide nyias nyias, tiv thaiv nws ntawm oxidation. Txawm li cas los xij, nws yooj yim rau galvanic corrosion thaum ua ke nrog cov hlau sib txawv hauv qhov chaw noo noo. Anodizing lossis coatings tuaj yeem ua rau nws tsis kam.
Yog li, cov hlau tsis xeb muaj zog dua los tiv thaiv xeb, thaum txhuas xav tau kev kho mob tiv thaiv hauv cov xwm txheej hnyav.
4. Qhov Hnyav: Aluminium Yeej Rau Cov Ntawv Thov Sib Nqus
Qhov ceev ntawm txhuas yog li ntawm 2.7 g/cm³, tsawg dua ib feem peb ntawm cov hlau tsis xeb 8 g/cm³,uas yog qhov sib dua heev.
·Cov khoom siv dav hlau thiab tsheb
·Cov khoom siv hluav taws xob uas nqa tau (piv txwv li, cov laptops)
·Cov khoom siv xws li tsheb kauj vab thiab cov khoom siv mus pw hav zoov
Qhov hnyav ntawm cov hlau tsis xeb yog qhov zoo dua hauv cov ntawv thov uas xav tau kev ruaj khov, xws li cov tshuab ua haujlwm lossis cov kev txhawb nqa vaj tse.
5. Kev Ua Hluav Taws Xob thiab Thermal
Kev Ua Kub:
Aluminium ua kom sov tau 3 zaug zoo dua li cov hlau tsis xeb, ua rau nws zoo tagnrho rau cov dab dej kub, cov khoom siv ua noj, thiab HVAC systems.
Kev Ua Hluav Taws Xob:
Aluminium siv dav hauv cov xov hluav taws xob thiab cov xov hluav taws xob vim nws muaj kev coj hluav taws xob siab (61% ntawm tooj liab). Cov hlau tsis xeb yog cov hlau coj hluav taws xob tsis zoo thiab tsis tshua siv rau hauv kev siv hluav taws xob.
6. Kev Sib Piv Tus Nqi
Txhuas:
Feem ntau pheej yig dua li cov hlau tsis xeb, nrog rau cov nqi hloov pauv raws li tus nqi zog (kev tsim cov txhuas yog siv zog ntau). Txij li xyoo 2023, cov txhuas raug nqi ~ $ 2,500 rau ib metric ton.
Cov Hlau Tsis Xeb:
Kim dua vim yog cov khoom sib xyaw xws li chromium thiab nickel. Qib 304 stainless hlau nruab nrab ~ $ 3,000 ib metric ton.
Lub Tswv Yim:Rau cov haujlwm uas pheej yig thiab qhov hnyav tseem ceeb, xaiv txhuas. Yog xav kom siv tau ntev hauv qhov chaw nyuaj, cov hlau tsis xeb yuav ua rau tus nqi kim dua.
7. Kev Siv Tshuab thiab Kev Tsim Khoom
Txhuas:
Mos dua thiab yooj yim dua rau kev txiav, khoov, lossis extrude. Zoo tagnrho rau cov duab nyuaj thiab prototyping sai. Txawm li cas los xij, nws tuaj yeem ua rau cov cuab yeej puas vim nws qhov melting point qis.
Cov Hlau Tsis Xeb:
Nyuaj dua rau kev siv tshuab, xav tau cov cuab yeej tshwj xeeb thiab qeeb dua. Txawm li cas los xij, nws tuav tau cov duab meej thiab ua tiav zoo, haum rau cov khoom siv kho mob lossis cov qauv vaj tsev.
Rau kev vuam, cov hlau tsis xeb xav tau kev tiv thaiv roj inert (TIG/MIG), thaum cov txhuas xav tau kev paub dhau los ntawm kev tuav kom tsis txhob warping.
8. Cov Ntawv Thov Feem Ntau
Siv Aluminium:
·Kev siv dav hlau (aircraft fuselages)
·Kev ntim khoom (cov kaus poom, ntawv ci)
·Kev tsim kho (qhov rai, ru tsev)
·Kev thauj mus los (tsheb, nkoj)
Cov Hlau Stainless Siv:
·Cov cuab yeej kho mob
·Cov khoom siv hauv chav ua noj (cov dab dej, cov riam)
·Cov thoob dej ua tshuaj lom neeg
·Cov khoom siv kho vajtse marine (nkoj fittings)
9. Kev Ruaj Ntseg thiab Kev Rov Siv Dua
Ob qho hlau no yog 100% rov ua dua tshiab:
·Kev siv txhuas dua tshiab txuag tau 95% ntawm lub zog uas xav tau rau kev tsim khoom thawj zaug.
Xaus Lus: Koj Yuav Tsum Xaiv Qhov Twg?
Xaiv Aluminium Yog tias:
·Koj xav tau ib yam khoom uas tsis hnyav thiab pheej yig.
·Kev ua hluav taws xob / thermal conductivity yog qhov tseem ceeb.
·Qhov project no tsis muaj kev ntxhov siab heev lossis qhov chaw corrosive.
Xaiv Cov Hlau Stainless Yog tias:
·Lub zog thiab kev tiv thaiv corrosion yog qhov tseem ceeb tshaj plaws.
·Daim ntawv thov cuam tshuam nrog qhov kub siab lossis cov tshuaj lom neeg hnyav.
·Kev zoo nkauj (piv txwv li, cov khoom tiav ci ntsa iab) tseem ceeb.
Lub sijhawm tshaj tawm: Lub Ob Hlis-25-2025
