Aluminum Honeycomb Core Sandwich Panel as Metro Ceiling

　　Speaking of aluminum honeycomb core sandwich panel, most people think of exterior wall board. As a matter of fact, the panel covers a wider range of application, including furniture (as elaborated in Aluminum Honeycomb Panel Used for Furniture), and interior ceiling of large public buildings. Has it ever occurred to you that the ceilings of metro station you visit almost every working day, are all made of aluminum honeycomb core sandwich panel rather than any other materials?

　　Aluminum honeycomb core sandwich panel boasts larger thickness than most other aluminum boards. It’s minimum thickness is 6mm, much bigger than 2.5mm of some aluminum plates. The panel performs strong hardness, withstanding weight of 1ton and more. This makes it perfect materials for metro ceilings that support heavy frames shouldering the ground overhead. Besides, the panel core is of hexagon shape. Such an ingenious design of honeycomb enables aluminum honeycomb core sandwich panel to take in noise effectively. This reduces noise in the metro greatly, protecting passengers from harmful noise which would further influence their mood. Furthermore, the ceilings are usually designed in such a way that air flows freely between aluminum panels. That’s why you don’t feel suffocated in deep underground metro stations. If the construction designers had chosen simple aluminum plates rather than more expensive aluminum honeycomb core sandwich panel, the metro station would not be so peaceful and pleasant as it is now.