7A04
Описание
Объем поставок авиационной группы:
Она может быть настроена нестандартно, алюминиевая пластина (цельная пластина/резка), алюминиевый пруток, алюминиевые поковки, алюминиевые трубы, алюминиевые профили и т.д. Добро пожаловать на запрос!
1. Введение в 7A04 Материалы
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 химический состав
| Медаль из сплава | кремний
И |
железо
Fe |
медь
Cu |
марганец
Mn |
магний
Mg |
хром
Cr |
Цинк
Zn |
титан
Из |
другие | алюминий
AL |
||
| Новый сорт | Старый бренд | 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 | Каждый | всего | Маржа |
| 7a04 | LC4 | 0.05 | 0.10 | |||||||||
3. Physical properties and characteristics of 7A04
| Марка и состояние алюминиевого сплава | прочность на разрыв
Рм/Мпа |
Урожайность урожая
Rp0.2/Mpa |
Удлинение/% | Твердость/HBWα | плотность
(20 ℃) (г / см3) |
| 7a04-T6 | 490 | 410 | 7 | 150 | 2.9 |
IV. 7A04 поля приложения
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.
