2A12 aluminium alloy yog ib hom muaj zog rugged txhuas, uas tuaj yeem ua kom muaj zog los ntawm kev kho cua sov; 2A12 aluminium alloy muaj qhov zoo ntawm qhov vuam vuam vuam thiab muaj lub siab nyiam ua cov kab nrib pleb thaum lub sij hawm vuam thiab argon arc vuam; 2A12 aluminium alloy yuav raug txiav tom qab txias ua hauj lwm hardening Qhov kev ua tau zoo tseem zoo. Kev tiv thaiv corrosion tsis siab, thiab kev kho mob anodizing thiab tha xim feem ntau yog siv los yog saum npoo yog coated nrog txhuas txheej los txhim kho corrosion kuj.
Chemical Composition (%) ntawm 2A12 Aluminium Alloy
| Si | Cu | Mg | Zn | Mn | Ti | Ni | Fe | Al |
| Tsawg dua lossis sib npaug rau 0.50 | 3.80-4.90 | 1.20-1.80 | Tsawg dua lossis sib npaug rau 0.30 | 0.30-0.90 | Tsawg dua lossis sib npaug rau 0.15 | Tsawg dua lossis sib npaug rau 0.10 | Tsawg dua lossis sib npaug rau 0.50 | So |
Mechanical Properties ntawm 2A12 Aluminium Alloy
| Kub | Tensile zog, Rm / MPa | Yield zog, Rp0.2/MPa | Elongation (%) | Hardness, HWB |
| T4 | 425 | 275 | 12 | 120 |
Lub cev muaj zog ntawm 2A12 Aluminium Alloy
| Kub | Thermal Expansion ({0}} degree )μm/m·k | Melting Point Range (zeeg) | Hluav taws xob conductivity 20 degree (68℉) (%) IACS | Hluav taws xob tiv taus 20 degree (68 ℉) Ωmm² / m | Qhov ceev (20 degree) (g / cm³) |
| T4 | 22.9 | 502-638 | 30 | 0.057 | 2.8 |
Daim ntawv thov
2A12 feem ntau yog siv los ua ntau yam khoom siv siab thiab cov khoom siv (tab sis tsis suav nrog stamping forgings) xws li cov pob txha, cov tawv nqaij, cov taub hau, tav, spars, rivets, thiab lwm yam haujlwm hauv qab 150 degree ntawm lub dav hlau.
Kev kho cua sov
1) Homogenization annealing: cua sov ntawm 480-495 degree; tuav rau 12-14h; cub cua txias.
2) Ua kom tiav annealing: cua sov ntawm 390-430 degree ; tuav lub sij hawm 30-120min; Lub qhov cub txias rau 300 degree thiab cua txias.
3) Kev nrawm nrawm: cua sov ntawm 350-370 degree ; tuav lub sij hawm ntawm 30-120min; cua txias.
4) Quenching thiab aging: Quenching ntawm 495-505 degree, dej txias; dag dag ntawm 185-195 degree , 6-12h, cua txias; natural aging: chav tsev kub 96h.
