1. Dab tsi yog cov khoom tseem ceeb ntawm txhuas alloy cov ntawv txheeb?
Teb:
Txhuas Alloy Daim Ntawv Qhia tau siv dav hauv kev lag luam xws li aerospace, kho tsheb, thiab kev tsim kho vim lawv cov khoom ntiag tug:
Lub teeb yuag: Ntom (~ 2 {. 7 g / cm³) yog li 1/3 ntawm cov hlau, txo qhov hnyav.
Corrosion Kuj: Ua cov txheej oxide cov txheej txheej qub, txhim kho los ntawm alloys zoo li 3003 lossis 5052.
Zog-qhov hnyav piv: Kub-kho cov alloys (e {{{1} g} ti}}
Thermal / Hluav Taws Xob Ua Haujlwm: Zoo tagnrho rau kev hloov cua sov thiab cov hluav taws xob .
Luam ntawv: Yooj yim txiav, welded, lossis tsim (e {{{} g}!} {.
Cov alloys nquag suav nrog 1xxx (ntshiab al), 5xxx (mg-ntxiv rau kev siv roj av), thiab 7xxx (zn-ntxiv rau aerospace).
2. Yuav ua li cas los xaiv txoj cai txhuas alloy ntawv rau ib qhov project?
Teb:
Kev Xaiv Nyob Ntawm:
Daim Ntawv Thov Yuav Tsum Tau:
Cov Txheej Txheem Txheej Txheem: 6xxx lossis 7xxx series rau siab zog .
Corrosive ib puag ncig: 5xxx series (e . g {}}}} .
Kev Xav Tau Fabrication:
Vuam: Zam kev ua kom nruj 2xxx (nquag mus tawg); siv 6xxx nrog cov xaim xaim .
Muaj meej: 3xxx rau khoov; 1100 rau stamping .
Tus nqi: 1xxx yog pheej yig dua tab sis tsis muaj zog; 7xxx yog kim tab sis ultra-muaj zog .
Tus qauv: ASTM B209 rau tuab ua siab ntev; Ams rau Aerospace specs .
Piv txwv: Rau lub nkoj hull, xaiv {5086- h32 (tshuav nyiaj li cas thiab corrosion tsis kam).
3. Dab tsi cov kev kho nyob rau lwm tus txhim kho Alloy Daim Ntawv Kev Ua Tau Zoo?
Teb:
Txoj kev: Electrochemical txheej txheem (Hom II / III) tsim cov txheej txheej oxide rau cov khoom siv tsis kam (e}}}} {{{{3}
Hmoov txheej: Muab kev tiv thaiv xim thiab UV kev tiv thaiv (muaj ntau hauv signage) .
Tshuaj Hloov Ntshav Hloov Hloov: Chromate lossis phosphate cov xim pleev xim txhim kho cov xim nplaum (E {{{} g}! Alodine rau cov ntawv thov tub rog).
Neeg Kho Tshuab Xov: Txhuam hniav lossis polishing rau kev ua kom zoo nkauj (e {{{{} g}}}} {.
NCO TSEG: Alloy 2024 xav kom chromate pretreatic vim tooj liab cov ntsiab lus {}}
4.} Koj npau taws npaum li cas (e .!
Teb:
Temper Codes qhia cov txheej txheem tom qab ntau lawm:
H series (lim-hardened):
H32: Ib nrab annealed + strain-hardened (e {{} h} h32 rau lub zog nruab nrab) {}}
H18: Tuab Phem (siab dua (siab dua dag zog tab sis brittle) .
T series (cua sov):
T6: Kev daws teeb meem kub -} {{}} TXAUS} T6 rau cov kab teeb qauv) {}}
T4: ib txwm muaj hnub nyoog tom qab kev kho cua sov (softer tshaj t6) .
Txoj Cai: Cov lej siab dua (E {. g}}}, h38) txhais tau ntau dua tab sis txo ductility {}}
5. Dab tsi yog cov khoom sib xws hauv txhuas alloy los xij thiab yuav ua li cas tiv thaiv lawv?
Teb:
Pitting corrosion: Los ntawm chloride kis .}}} kho: Siv 5xxx alloys .
Ntug Nruag: Lub sijhawm ua tiav cov high-zog alloys (e .}}. {4} {.
Txiv kab ntxwv tev nto: Unēgen grain qauv . annealeal}}} h14 ntawm 345 degree).
Ua rog: Vim tias tsis sib xws txias .} Nrhiav tempers (E {}}}}, t651).
Kev kuaj xyuas zoo: Ultrasonic kuaj rau sab hauv voids; zas cenetrant rau thaj chaw tawg .
