Lub 7000 series aluminium alloy yog lub tshav kub-kho tau ntxiv dag zog aluminium alloy nrog zinc ua lub ntsiab alloy. Thiab ntxiv cov ntsiab lus xws li magnesium thiab tooj liab muab nws peb qhov zoo: siab zog, hnav, thiab corrosion kuj. Cov khoom no ua rau nws siv dav hauv cov teb nrog cov khoom siv nruj heev uas yuav tsum tau ua. Peb lub tuam txhab tsom mus rau kev muab cov khoom zoo 7000 series aluminium alloy khoom, suav nrog txhuas phaj, txhuas pas nrig, txhuas raj thiab machining, txhua yam tuaj yeem kho raws li koj xav tau.
Peb tam sim no muab koj nrog cov ncauj lus kom ntxaws thiab kev txhais lus dav dav ntawm cov yam ntxwv tseem ceeb thiab cov ntawv thov dav dav ntawm7000 series aluminium alloy.
I. Cov yam ntxwv ua haujlwm
Siab zog
Tom qab kev kho cua sov tsim nyog, 7000 series aluminium alloy tuaj yeem ua tiav lub zog siab, ua rau nws muaj zog tshaj plaws ntawm aluminium alloy tam sim no. Piv txwv li, 7075 aluminium alloy muaj lub zog tensile ntawm kwv yees li 560MPa thiab lub zog tawm ntawm ib ncig ntawm 500MPa. Qib ntawm lub zog no ua rau nws muaj txiaj ntsig zoo hauv kev tsim cov khoom siv uas yuav tsum tau nqa cov khoom hnyav. Cov cuab yeej muaj zog siab stems los ntawm kev sib koom ua ke ntawm ntau lub ntsiab lus hauv cov hlau. Cov ntsiab lus xws li zinc, magnesium, thiab tooj liab daim ntawv ntxiv dag zog rau cov theem thaum lub sij hawm kev kho mob thiab cov txheej txheem kev laus, yog li ua kom cov alloy lub zog.
Zoo heev Fatigue Resistance
Thaum raug rov ua dua lwm qhov kev thauj khoom, 7000 series aluminium alloy tuaj yeem tswj cov qauv kev ua haujlwm ruaj khov, txo qhov kev pheej hmoo ntawm qaug zog tawg. Cov cuab yeej no ua rau nws tshwj xeeb tshaj yog rau cov khoom siv hauv aerospace uas raug rau kev hloov mus sij hawm ntev, xws li lub dav hlau tsaws iav thiab tis tis. Nws qaug zog kuj tau txais txiaj ntsig los ntawm cov hlau alloy cov yam ntxwv microstructural. Uniform thiab nplua nplej, nrog rau cov txheej txheem ntxiv dag zog, tuaj yeem cuam tshuam qhov pib thiab nthuav tawm ntawm cov kab nrib pleb, yog li ua rau cov khoom siv lub neej qaug zog.
Nruab nrab Corrosion Resistance
Lub corrosion kuj ntawm lub7000 series aluminium alloyyog me ntsis qis dua li ntawm 5000 series aluminium alloy (uas siv magnesium ua lub ntsiab alloying ntsiab thiab muaj corrosion kuj zoo), poob rau hauv cov khoom nruab nrab. Nyob rau hauv corrosive ib puag ncig xws li cov av noo thiab ntsev, 7000 series txhuas alloy yog nquag mus corrosion tsis muaj kev kho deg. Txawm li cas los xij, los ntawm cov txheej txheem kho saum npoo xws li anodizing, pleev xim, thiab electroplating, nws cov corrosion kuj tuaj yeem txhim kho tau zoo, ua kom nws ua tau raws li cov kev cai siv hauv ntau qhov chaw ib puag ncig.
Machinability thiab Weldability
Lub 7000 series aluminium alloy muaj qee qhov kev ua haujlwm thiab tuaj yeem tsim siv ntau yam kev ua haujlwm xws li forging, extrusion, thiab dov. Txawm li cas los xij, piv nrog 6000 series aluminium alloy (uas siv magnesium thiab silicon ua cov ntsiab lus alloying tseem ceeb thiab muaj kev ua haujlwm zoo), 7000 series aluminium alloy yog qhov nyuaj rau kev ua haujlwm thiab yuav tsum tau ua cov khoom siv nruj dua thiab cov txheej txheem tsis zoo. Nyob rau hauv cov nqe lus ntawm vuam, lub 7000 series txhuas alloy muaj tsis zoo weldability. Thaum lub sij hawm vuam txheej txheem, qhov tsis xws li cov kab nrib pleb thiab qhov hws yuav tshwm sim, yuav tsum tau siv cov txheej txheem vuam tshwj xeeb thiab cov ntaub ntawv muab tub lim kom ntseeg tau qhov zoo ntawm cov pob qij txha welded.
II. Cov txheej txheem kho cua sov
Kev ua tau zoo ntawm 7000 series aluminium alloy feem ntau nyob ntawm cov txheej txheem kho cua sov. Cov txheej txheem kev kho cua sov feem ntau suav nrog kev kho tshuaj, quenching, thiab kev laus kho.
Kev kho mob
Lub 7000 series txhuas alloy yog rhuab mus rau ib tug tej yam kub thiab siab yaj lub ntxiv zog theem nyob rau hauv lub matrix, tsim ib tug uniform khoom tov. Cov txheej txheem no tuaj yeem txhim kho lub alloy lub plasticity thiab toughness, nteg lub hauv paus rau kev laus tom qab kev kho mob. Qhov kub thiab lub sij hawm ntawm kev daws kev daws teeb meem yuav tsum tau tswj kom meej meej kom paub meej tias cov theem ntxiv dag zog tau tag nrho yaj thiab kom tsis txhob muaj qhov tsis xws luag xws li overburning.
Quenching
Tom qab kev daws teeb meem, aluminium alloy tau txias sai heev los tiv thaiv cov theem ntxiv los ntawm precipitating, yog li khaws cov khoom hauv lub xeev ntawm qhov kub thiab txias. Cov cua txias thaum lub sij hawm quenching ho cuam tshuam rau cov alloy qhov kev ua tau zoo. Kev nrawm nrawm heev yuav ua rau muaj kev ntxhov siab loj hauv cov hlau, txawm tias ua rau deformation thiab tawg; qeeb qeeb tus nqi txias yuav ua rau cov theem ntxiv dag zog rau precipitate ntxov ntxov, txo cov zog ntawm cov alloy.
Kev laus kho mob
Lub quenched aluminium alloy yog nyob rau hauv lub xeev metastable. Los ntawm kev laus kev kho mob (muab faib rau tej yam ntuj tso aging thiab dag dag), nws yog khaws cia nyob rau hauv ib tug tej yam kub rau ib lub sij hawm, cia lub supersaturated solute atoms nyob rau hauv cov khoom tov kom maj mam precipitate thiab tsim dispersed ntxiv dag zog rau theem, yog li ua rau cov alloy lub zog thiab hardness. Ntuj aging tshwm sim nyob rau hauv chav tsev kub. Txawm hais tias cov txheej txheem kev laus qeeb, nws tuaj yeem ua tiav kev ua haujlwm zoo dua. Artificial aging, ntawm qhov tod tes, yog nqa tawm ntawm qhov kub siab dua, nrog rau kev laus sai sai uas tuaj yeem ncav cuag lub zog xav tau. Txawm li cas los xij, nws yuav muaj qee yam cuam tshuam rau lub alloy lub toughness.
III. Feem ntau Cov Qib Siab thiab Kev Siv Hauv Cheeb Tsam
7075 Aluminium Alloy
7075 aluminium alloy yog ib qho ntawm cov qib ntxov tshaj plaws thiab siv dav tshaj plaws hauv 7000 series aluminium alloy tsev neeg. Ua tsaug rau nws lub zog siab thiab zoo toughness, nws yog feem ntau siv rau hauv kev tsim cov khoom tseem ceeb ntawm cov khoom siv dav hlau, xws li tis spars, fuselage thav duab, thiab tsaws iav. Hauv kev lag luam aerospace, daim ntawv thov ntawm 7075 aluminium alloy muaj keeb kwm ntev thiab tau ua haujlwm tseem ceeb rau lub teeb yuag thiab kev ua haujlwm siab ntawm aircraft. Ntxiv rau, cov7075 txhuas alloykuj tseem siv rau hauv cov khoom siv ua kis las high-end, xws li cov tsheb kauj vab thiab cov koom haum ntaus golf, kom ua tau raws li qhov xav tau ntawm cov neeg nyiam ua kis las rau cov khoom siv muaj zog thiab lub teeb.
7050 Aluminium Alloy
Lub 7050 aluminium alloy muaj qhov zoo tshaj plaws tsim qauv. Zirconium (Zr) yog siv los hloov chromium (Cr) los ua kom cov nplej, thaum nce cov ntsiab lus tooj liab (Cu) thiab kho qhov sib piv loj ntawm zinc (Zn) rau magnesium (Mg). Qhov no muab nws lub zog siab, zoo corrosion kuj, thiab tawg toughness. Hauv thaj chaw aerospace, 7050 aluminium alloy tau ua tiav zoo rau cov txheej txheem tseem ceeb ntawm F / A - 18 fighter dav hlau thiab Boeing 777 airliners, xws li tis tis thiab fuselage thav ntawv. Ntxiv mus, 7050 aluminium alloy yog maj mam siv nyob rau hauv high-speed tsheb ciav hlau, automotive kev lag luam, thiab lwm yam liaj teb los tsim cov khoom uas yuav tsum tau tiv thaiv loj loads thiab complex kev nyuaj siab.
Nrog rau txoj kev loj hlob sai ntawm kev lag luam xws li aerospace, kev tiv thaiv lub teb chaws thiab tub rog, thiab cov khoom siv high-end tsim, cov kev xav tau siab dua tau muab tso rau ntawm qhov kev ua tau zoo ntawm 7000 series aluminium alloys. Nyob rau hauv lub neej yav tom ntej, txoj kev loj hlob ntawm 7000 series aluminium alloys yuav txav mus rau lub zog siab dua, muaj zog dua, zoo dua corrosion kuj, thiab ntau dua kev ua tau zoo. Los ntawm optimizing alloy muaj pes tsawg leeg tsim, txhim kho cov txheej txheem kev kho cua sov thiab cov thev naus laus zis kho deg, thiab tsim cov txheej txheem tshiab thiab tsim khoom, kev ua tau zoo thiab kev ua tau zoo ntawm 7000 series aluminium alloys yuav raug txhim kho tsis tu ncua kom ua tau raws li qhov xav tau ntawm daim ntawv thov siab. Raws li ib tug ua aluminium alloy tsum nyob rau hauv kev lag luam, peb tsis tsuas yog muab high-zoo 7000 series txhuas daim hlau, tuav, thiab hlab, tab sis kuj yog txawm peem rau nrog advanced cov cuab yeej xws li CNC machining chaw, CNC lathes, thiab precision milling tshuab. Peb txhawb nqa cov kev pabcuam tag nrho los ntawm cov khoom siv rau kev ua tiav cov khoom lag luam kom ntseeg tau tias cov khoom xa tuaj raws li cov qauv nruj. Tiv tauj peb tam sim no kom tau txais cov kev daws teeb meem rau 7000 series aluminium alloys!
Post lub sij hawm: Jun-03-2025