Cold Drawn Aluminium Alloy Tube for Air Condition



Advantages of hot extrusion cold drawn aluminum pipe
- we can design and cut to meet customer's special demand
- Wonderful surface treatment,we can meet customers requirement on surface
- Strickly quality control,never allowed not qualified products leaved factory
Application : hot extrusion cold drawn aluminum pipe
heat transfer epuipment,construction industry,curtain track,structure support,irrigation,funiture,and so on
Specification of hot extrusion cold drawn aluminum pipe
hot extrusion series aluminum pipe |
Material alloy |
1070,1100,3003,3A21,D97,K70a,6061,6063 |
Product dimension(mm) |
According to customer requirement |
State |
H112,F,T4,T5,T6 |
Product type |
Harmonica-shaped tube,strip seal,aluminum spacer,shaped profile,square aluminum tube,round aluminum tube,irregular aluminum pipe |
Cold drawn series aluminum tube |
Material alloy |
6063,3003 |
Product dimension(mm) |
According to customer requirement |
state |
H14,H18,O,T4,T6 |
Product type |
Auto air condition connecting pipe,water tank tube |
The advantages of high-quality cold-drawn aluminum tubes are mainly reflected in the following aspects:
1.High accuracy and dimensional stability
Cold drawing process precisely controls the outer diameter, wall thickness and other parameters of aluminum tubes through plastic deformation, and the tolerance range can be controlled within ±0.05mm to meet the needs of precision machinery manufacturing 14. This process also eliminates residual stress within the material and improves overall structural stability 17.
2.Excellent mechanical properties
In the process of cold drawing, the grain structure of aluminum is refined, the strength and hardness are significantly improved, while maintaining good toughness, and can withstand high pressure and high load conditions 17. For example, the tensile strength and yield strength are more than 30% higher than that of ordinary aluminum tubes 1.
3.Excellent surface quality
Cold drawing process can make the surface finish of aluminum tube Ra≤0.8μm, reduce small cracks and burrs, reduce fluid resistance, prolong service life 45. The high finish also facilitates subsequent coating or oxidation treatment 48.
4.Excellent thermal conductivity
The aluminum alloy material with the optimized wall thickness distribution of cold drawing process can achieve efficient heat transfer, increase the evaporation temperature in refrigeration equipment by 10-15%, and significantly reduce energy consumption 23.
5. Structure design is flexible
Cold drawing process can produce aluminum tubes with complex cross-section shapes (such as fin tubes), accelerate the convection of cold and heat through the flue effect, and improve the heat exchange efficiency by more than 40% 23. This structure is especially suitable for cold storage top row of pipes and other scenes 23.
Packing: