1. Vim li cas yog txhuas suav tias yog "ntau yam" hlau hauv kev lag luam niaj hnub?
Kev qig tam sim no tseem muaj zog: nrog qhov ntom ntom-thib peb uas ntawm cov hlau, nws txo qhov hnyav hauv kev thauj mus los (tsheb, thaum tswj cov txheej txheem kev ntseeg siab. Corrosion Kuj: ib txheej oxide cov roj oxide tiv thaiv nws los ntawm xeb, zoo tagnrho rau sab nraum zoov txheej txheem (cov tuam tsev, txuas hniav) thiab ib puag ncig hnyav. Kev ua haujlwm siab: Cov hluav taws xob zoo ua rau nws siv nyob rau hauv cov hluav taws xob kab, hluav taws xob, thiab kev pauv hluav taws xob, thiab kev pauv hluav taws xob, thiab kev hloov hluav taws xob, thiab kev hloov hluav taws xob, thiab kev hloov hluav taws xob, thiab kev hloov hluav taws xob, thiab kev hloov hluav taws xob, thiab kev hloov cua sov. Mallability thiab formability: yooj yim zoo li tus kab ntawv, ntawv ci, lossis cov khoom siv nyuaj, ntawv ci) thiab kev tsim khoom lag luam. Rov ua dua tshiab: ntau dua 75% ntawm txhuas puas tuaj yeem siv nyob rau niaj hnub no, muaj zog qis zog yuav tsum tau ua dua tshiab piv rau kev tsim cov khoom lag luam.
2.How yog aluminium tsim los ntawm nws daim ntawv raw (bauxite)?
Bauxite Mining: Bauxite, ib qho kev nplua nuj aluminium, yog mined los ntawm qhib-qhov lossis av tso nyiaj. Refining rau hauv Alumina: Lub Bauxite Undergoes lub bayer txheej txheem, qhov twg nws yog crushed, tov nrog sodium hydroxide, thiab rhuab hauv siab kom yaj cov tebchaw. Impurities yog lim tawm, tawm hauv txhuas oxide (tus nas). Kev txo cov electrolytic: Alumina yog yaj nyob rau hauv Molten Cryolite thiab raug rau cov cuab yeej-Hérice. Ib qho hluav taws xob tam sim no sib faib cov roj txhuas oxide rau cov pa ntshiab thiab cov pa roj oxygen.
3.Qhov yog cov ntsiab lus tseem ceeb ntawm aluminium alloys tshaj ntshiab txhuas?
Kev txhim kho lub zog thiab cov khoom tawv tawv ua ib yam li tooj liab, magnesium, thiab zinc nce ntxiv cov txheej txheem (piv txwv li, cov dav hlau tsheb). Superior creep rillitance alloys pom kev txo qis deformation nyob rau hauv kev ntxhov siab nyob rau hauv kev ntxhov siab, tseem ceeb rau cov xaim, fasteners, thiab siab-thauj ib puag ncig. Txhim kho tshav kub thiab corrosion resistance alloying thiab kev kho mob txhawb nqa ruaj khov nyob rau hauv huab cua sov thiab tsis kam rau oxidation, zoo tagnrho rau aerospace thiab marine.
Kev rov ua dua tshiab Txhuas Txhuas 100% ntawm nws cov khoom tom qab rov ua dua tshiab, xav tau 95% tsawg dua lub zog kom rov tsim dua. Tshaj 75% ntawm tag nrho cov txhuas puas tau nyob hauv kev siv hnub no, txo kev cia siab rau cov ntaub ntawv raw thiab chaw pov tseg.
Zog hluav taws xob hauv tsheb thauj mus los.
4.How cov txhuas ua rau muaj cov thev naus laus zis siv tshuab?
Tsis tas li ib txhis rov ua dua cov txhuas tuaj yeem rov ua tau ntau dua yam tsis tau poob zoo, txuag 95% ntawm lub zog uas yuav tsum muaj rau kev tsim khoom. Tshaj 75% ntawm tag nrho cov txhuas puas tau ua tseem siv nyob rau niaj hnub no, muaj kev txo qis pov tseg thiab cov peev txheej extraction. Kev siv hluav taws xob rau lub zog hluav taws xob nws qis txo cov roj hauv tsheb (piv txwv li cov tsheb hluav taws xob, dav hlau) thiab txiav cov roj tsev cog khoom. Kev txo qis 10% rau hauv ib lub tsheb tuaj yeem txhim kho kev siv roj los ntawm 6-8%, ua kom nrawm nrawm rau kev thauj mus los. Kev siv hluav taws xob rov ua dua tshiab txhuas kev ua haujlwm corrosion thiab cua sib txuas), cua sib txuas), thiab fais fab resilient muaj zog txuas ntxiv.
5.Aluminum hauv Aerospace: li cas ib qho kev sib tw hlau tau kov yeej saum ntuj?
Aluminium qis ntom ntom (ib feem peb uas ntawm cov hlau) txo qhov hnyav dav hlau qhuav, ua rau muaj peev xwm txuas ntxiv, thiab muaj peev xwm ntxiv. Aluminium alloys (piv txwv li, {{2024- t3, {3}} t6) tau tsim tshwj xeeb rau ib lub zog, nkees tsis kam, thiab pob txha lov. Duralumin (al-cu-mg), thawj zaug siv nyob rau xyoo 1910, enabled rigid airframes zoo li cov nyob hauv j 13 thiab tom qab WWII cov neeg sib ntaus (piv txwv li, tus supermarine spitfire). Qhov tseem ceeb rau kev kov yeej "qhov hnyav hnyav" hauv kev tiv thaiv thaum ntxov, xws li Wright Cov Kwv Tij 'siv txhuas hauv lawv 1903 lub cav thaiv.
