1. Cov qauv khoom thiab cov yam ntxwv yooj yim
Cov ntaub ntawv sau: Ams -4037}} Alloy Alloy (Alcu4Mg1), uas yog lub siab-zog nyuaj ua rau cov aviationural ntu. Lub zog tuaj yeem txhim kho ntxiv los ntawm kev kho cua sov (T351 \/ T42).
Cov ntsiab lus zoo: Muaj lub zog zoo thiab nthuav (ceev 2.78g \/ cerm³ khoom xws li tis tawv tawv, fuselage thav ntawv, thiab lwm yam.
2. Demical Composition thiab Ntxiv Dag Zog
| Lub ntsiab | Cov ntsiab lus ntau | Cov Khoom Muaj Peev Xwm |
|---|---|---|
| Aluminium (AL) | Qho tseg | Ua raws li lub hauv paus hlau |
| Tooj Liab (Cu) | 3.8% – 4.9% | Cov ntaub ntawv θ (CUALT) ntxiv rau theem |
| Magnesium (mg) | 1.2% – 1.8% | Cov ntaub ntawv s (al₂cumg) ntxiv dag zog |
| Manganese (mn) | 0.3% – 0.9% | Txhim kho corrosion tsis kam thiab ua kev ua haujlwm |
| Tag nrho cov impurities | Tsawg dua los yog sib npaug rau 0. 5% | Nruj tswj tau dhau impurities (piv txwv li, FE, SI) los tuav cov khoom ua haujlwm |
3.3. Cov Khoom Siv Neeg Kho Tshuab
Tensile lub zog: Tom qab quenching + laus (T351 xeev), nws tuaj yeem mus txog {} mpa, thiab qaug zog tsis muaj zog yog qhov zoo dua li qhov dog dig aluminium;
Kev Txom Nyem: Txog 12% {{-15}}% hauv state state,, thiab txo rau 5% {% tom qab ua haujlwm txias txias.
4. Kev ua thiab vuam thev naus laus zis
Muaj meej
Cov txheej txheem txias txias tuaj yeem ua tiav rau hauv 0. {Mm} mm tuab daim hlau, txhawb nqa cov cim tuab thiab ncab;
Kev txiav kev ua tau zoo yog nruab nrab, thiab carbide cov cuab yeej yuav tsum tau siv tom qab annealing kom txo qhov tshwm sim.
Vuam kev txwv
Roj Vuam \/ Argon arc vuam yog nquag ua rau intergranular cracks, thiab kev tawm tsam vuam lossis khib vuam (FSW) yog pom zoo.
5. Nto Kho thiab Corrosion Kuj
Kev tiv thaiv kev tiv thaiv corrosion:
Anodizing (Zaj duab xis tuab 10-25 μm) lossis pleev xim (Epoxy Primer + Polyurethane Topcoat tsis kam;
Txhuas txheej (txheej txheej txheej txheej txheej sib npog nrog cov ntshiab txhuas) yog siv hauv cov av noo lossis cov av ua haujlwm.
6. Cov ntawv thov raug thov
Aerospace qauv: Fuselage ntawm daim tawv nqaij, tis nqaj hlau, tsaws iav Kev txhawb nqa cov khoom siv;
Muaj cov teb: High-thauj pwm, hydraulic-siab cov nkoj.
7. Kev soj ntsuam cov lus qhia
Cov kev xeem ua haujlwm: Ultrasonic kuaj (ut) kom ntseeg tau tias tsis muaj cov kab nrib pleb lossis kev suav nrog;
Txheej kev tshuaj xyuas:
Cov nplaum nplaum nplaum (ntau dua lossis sib npaug ntawm GB \/ T {1}} qib {2}});
Ntsev tshuaj tsuag mus kuaj ntau dua lossis sib npaug rau 1000 teev tsis muaj substrate corrosion.
8. Kev tiv thaiv rau kev siv
Tsheb thauj mus los thiab tso cai: Zaj duab xis + ntoo pallet Ntim kom tiv thaiv noo noo thiab kev sib tsoo, thiab tsis txhob sib cuag ncaj qha ntawm cov laug cam liab nrog cov xov xwm corrosive;
Kev Pabcuam Cheeb Tsam: Ntev mus rau Ph<3 or >11 yuav tsum muaj kev nce ntxiv ntawm cov txheej tiv thaiv kev tiv thaiv
