Jak końcówki puszek aerozolowych są zaprojektowane do pracy pod wysokim ciśnieniem?

1. Shape and Geometry

Domed profile:

Both the top end (cone end) and bottom end (dome end) are curvedrather than flat.

   ·The curvature distributes pressureevenly across the surface.

   · A dome resists bulging and buckling — similar to how arches or domes in architecture bear loads efficiently.

   · The bottom dome is often inward-curved (concave) for stability when standing and to accommodate pressure expansion.

2. Material Strength

Tinplate steel or aluminum is commonly used:

·Tinplate steel (0.18–0.22 mm thick) offers high burst strength.

·Aluminum is lighter but must be thicker or alloyed for strength.

·Some designs include work hardening during forming to increase tensile strength.

 3. Reinforcement Features

Beads or ribs may be added around the dome or cone to:

  · Increase rigidity.

  ·Prevent deformation under repeated pressure cycles.

  ·Improve stacking and impact resistance.

 4. Safety Features

Pressure relief system:

  ·Many can bottoms have a pressure relief groove that pops out before rupture if internal pressure exceeds safe limits.

Seam design:

  ·The seams are tested for burst pressure, ensuring that failure (if any) occurs in a predictable, non-explosive

5.Manufacturing Precision

 End design follows standards such as:

 ·EN 14847, ISO 11118, or DOT 2P/2Q (for US/Europe).

 Each end is tested for:

  ·Burst pressure

  ·Leak tightness

  ·Dimensional accuracy

 Example Dimensions (Typical 65 mm Can)

| Feature             | Top End (Cone) | Bottom End (Dome) |

| Material            | Tinplate steel | Tinplate steel    |

| Thickness           | 0.22 mm        | 0.25 mm           |

| Radius of curvature | 15–25 mm       | 20–30 mm          |

| Pressure rating     | ≥12 bar        | ≥14 bar           |

—

Summary

Aerosol can ends are dome-shaped, precisely formed, and made of high-strength materials. Their curvature, reinforced seams, and pressure relief features allow them to safely contain and dispense pressurized contents — making them lightweight yet strong pressure vessels.

Would you like me to include illustrated diagrams (showing the dome geometry and seam cross-section)? It helps visualize the stress distribution and pressure resistance.