Aluminum slugs for pressure cylinders refer to aluminum primary materials used to manufacture pressure vessels. These aluminum slugs are usually processed into pressure cylinders by deep stamping or other forming processes. Aluminum slugs have significant advantages in the manufacture of pressure cylinder bottles due to their high purity, good formability and corrosion resistance.
Advantages of 1070 aluminum slugs for pressure cylinders:
- Mechanical properties adaptability:
Tensile strength (σb): about 55-95MPa, yield strength (σ0.2): about 20-60MPa, elongation (δ): ≥20%.
Although the strength is low, the plasticity and ductility are excellent, suitable for forming into complex shapes (such as bottle body, bottle bottom) through cold stamping and deep drawing processes, and it is not easy to crack during the forming process.
- Processing performance advantages:
– Cold workability: The strength can be improved by cold rolling and cold drawing (cold work hardening), while maintaining good formability, without heat treatment strengthening.
– Weldability: Pure aluminum has good weldability and is suitable for connecting bottle parts using processes such as argon arc welding (TIG) and resistance welding.
- Safety and cost balance:
– High purity, no risk of alloy element precipitation, suitable for storing sensitive media such as food and medicine;
– The cost of 1070 aluminum slugs is lower than that of aluminum alloys (such as 5052, 6061), and the recycling rate of pure aluminum is high (recycling rate exceeds 95%), which meets environmental protection requirements.
Aluminum pressure cylinders are widely used in many fields, including but not limited to:
– Chemical industry: used for storage and transportation of chemicals.
– Food and beverage industry: used for pressure tanks, containers, etc.
– Aerospace: used for lightweight, high-strength pressure vessel design.
– Medical equipment: pressure vessels for gas storage and transmission.
1070 aluminum slugs have become an economical choice for low-pressure pressure cylinders manufacturing due to their high purity, excellent cold workability and corrosion resistance, especially suitable for scenarios that are sensitive to lightweight, corrosion resistance and cost (such as packaging containers, small gas tanks). However, attention should be paid to its strength limitation, and strict molding process and quality inspection should be carried out to ensure the safety of the container. If higher pressure or complex working conditions are required, aluminum alloy grades such as 3003 and 5052 can be given priority.
