Application of Aluminum Honeycomb Panel in Railway

　　aluminum honeycomb panelAs an important lightweight material, it is widely used in the aviation manufacturing industry, and it has also been used in foreign railway vehicles. Its use is quite extensive, such as the French TGV series and the Italian ETR series high-speed trains. Domestic only in recent years began to use aluminum honeycomb panels, although achieved certain results, its application is still very limited, the characteristics of honeycomb sandwich materials and the scope of application of understanding to be further strengthened and expanded.

Aluminum honeycomb panel is a composite material bonded by aluminum honeycomb core material and surface material. In summary, aluminum honeycomb panel has the following basic characteristics:

(1) Light weight and high specific strength, especially high bending stiffness. The bending stiffness of aluminum honeycomb panels of the same quality is about 5 times that of aluminum alloy.

(2) has a high surface flatness and high temperature stability, easy forming and not easy deformation, aluminum honeycomb panel can not only be made into a flat panel, but also can be made into a double curve, single panel, made of vehicle parts after easy disassembly.

(3) excellent corrosion resistance, insulation and environmental adaptability, can be adapted to the railway EMU and passenger car all kinds of harsh environment; in addition, according to the needs, this kind of plate can be used surface paint or surface paste fire board treatment, to achieve good decorative, fire resistance.

(4) Unique resilience, can absorb vibration energy, and has a good sound insulation and noise reduction effect.

(5) The fire protection level is high, which meets the requirements of the international intermodal fire protection standard UIC564-2-199l the-level requirements in the Fire Protection and Fire Protection Regulations for Railway Passenger Cars or Similar Vehicles for International Intermodal Transport.

(6) The smoke density after the fire meets the high-grade international railway fire protection standard, with good self-extinguishing; the heat release value is low, can form a fire-resistant layer, can reduce the release of smoke and toxic gases, has excellent environmental performance.

(7) excellent molding manufacturing process, can meet the railway vehicle interior parts complex shape, high stability requirements.

In foreign countries, France\'s TGV series and Italy\'s ETR series high-speed trains have long adopted honeycomb sandwich structure composite materials to make interior wall panels and roof panels. Subsequently, many railway vehicle manufacturers in Europe adopted aluminum honeycomb panels to make railway vehicle parts. The scope of application covers the side wall panels, inner roof panels, partition panels, floors, door panels of inner and outer doors, luggage racks and other parts in the interior structure. Among them, Italy is relatively leading in the application of aluminum honeycomb panels. Italy has long begun to use aluminum honeycomb panels to manufacture structural parts such as luggage racks with complex shapes and inner wall panels with curved windows.