7A04
Descrizione
Ambito di fornitura del Gruppo Aviation:
Può essere personalizzato non standard, piastra di alluminio (piastra intera / taglio), asta di alluminio, forgiati di alluminio, tubi di alluminio, profili di alluminio, ecc. Benvenuti a chiedere informazioni!
1. Introduzione a 7A04 I materiali
7A04 belongs to Al-Zn-Mg-Cu superaluminum alloy, also known as superhard aluminum, which is a very mature alloy with a long-lasting and wide use among superhard aluminum. High strength, good heat treatment strengthening effect, medium plasticity in annealing and new quenching states; unlike hard aluminum, the corrosion resistance in artificial aging state is better than that in natural aging states, and the natural aging process is slow, and it takes 3 months to reach the peak of aging hardening. Therefore, the disadvantage of using 7A04 in quenching artificial aging state is that its structure stability is low, low low-frequency fatigue strength, and tends to have stress corrosion and rupture. The alloy has good point properties and good machinability after gas welding heat treatment, but poor machinability after annealing.
2. 7A04 composizione chimica
| Medaglia in lega | silicio
E |
ferro
Fe |
rame
Cu |
manganese
Mn |
magnesio
Mg |
cromo
Cr |
Zinco
Zn |
titanio
Di |
altro | alluminio
AL |
||
| Nuovo grado | Vecchio marchio | 0.5 | 0.5 | 1.4-2.0 | 0.2-0.6 | 1.8-2.8 | 0.1-0.25 | 5.7-7.0 | 0.10 | Ciascuno | totale | margine |
| 7a04 | LC4 | 0.05 | 0.10 | |||||||||
3. Proprietà e caratteristiche fisiche of 7A04
| Grado e stato della lega di alluminio | resistenza alla trazione
Rm/Mpa |
Rendimento del rendimento
Rp0,2/Mpa |
Allungamento/% | Durezza/HBWα | densità
(20 ℃) (g / cm3) |
| 7a04-T6 | 490 | 410 | 7 | 150 | 2.9 |
IV. 7A04 campi di applicazione
7A04 is widely used in mold processing, mechanical equipment, tooling and fixtures, aerospace industry, blow molding (mold, ultrasonic plastic welding mold, golf ball head, shoe mold, paper mold, foam mold, wax removal mold, mechanical equipment, etc.
