 Random Photo |
7
Szczecin 2004
|
| Users Online | Guests Online: 3
No Members Online
Registered Members: 1049
Newest Member: elizabara51
|
| Top 5 links | |
| Mini statistics | Members : 1049
Download mp3 : 5655
View photo : 22369
View Links : 262140
|
|
|
| Author |
Duralumin |
fengqingxue
Member
Posts: 4185
Location: newyork
Joined: 18.01.16 |
|
Duralumin composition: Al--Cu--Mg--Mn alloy. Duralumin has good mechanical properties, high strength (for example, 2Al2-T4 tensile strength can reach 469MPa or more), easy to process, and low density, making it light-weight Structural materials.functional color steel sheet and coil PPGI
In general hard aluminum, magnesium does not exceed 2%. Manganese can improve strength and corrosion resistance, but generally limit manganese to less than 1%, adding a small amount of titanium can refine the crystal grains, iron and silicon are limited to less than 0.5-0.6%, and it is hoped that the ratio of iron to silicon is greater than or equal to one.
The main disadvantages of duralumin are:
1) The corrosion resistance is poor, so the surface of the hard aluminum plate has to be covered with a layer of industrial pure aluminum (the thickness of pure aluminum accounts for 3-5% of the plate thickness) to become aluminum-clad duralumin. The strength decreases when there is an aluminum clad layer.Mirror Etched Stainless Steel Decorative Plate
2) The solution treatment temperature range is narrow, and the maximum strengthening effect cannot be exerted if the temperature is lower than this temperature. If the upper limit temperature is exceeded, the grain boundary "over" may occur and the crystal grain aggregation may be destroyed.
3) The welding crack tends to be large, and it is difficult to use the fusion welding method.A36 Steel Round Bar Round Bar with cheap price
just do it! |
|
|
|
|
| Guest | |
|
|
