Metal honeycomb panel

Introduction:

Metal honeycomb panels are suitable for civil construction, vehicle and vessel interiors, and other applications, representing the extension of aerospace materials into the civil building sector. These panels are manufactured using hot-press forming technology; the high thermal conductivity between the aluminum skins and the honeycomb core ensures synchronous thermal expansion and contraction of the inner and outer skins. Small perforations in the honeycomb aluminum skin allow free circulation of gases within the panel, while a sliding mounting fastening system prevents structural deformation during thermal expansion and contraction, thereby guaranteeing exceptional flatness. The panels are bonded using a two-component polyurethane high-temperature curing adhesive applied via fully automated honeycomb panel laminating equipment under pressure and elevated temperatures, effectively overcoming the brittleness issues associated with conventional honeycomb panel adhesion layers. The core layer consists of a specially engineered hexagonal aluminum honeycomb made from H19-grade aluminum alloy, serving as the core material in the sandwich structure and resisting compressive loads in the through-thickness direction. This densely interlocked honeycomb configuration functions like numerous small I-beams, evenly distributing and dissipating loads transmitted from the face sheets, ensuring uniform stress distribution throughout the panel and maintaining outstanding flatness even over large surface areas.

Honeycomb materials exhibit excellent performance characteristics, including resistance to high wind pressure, shock absorption, sound insulation, thermal insulation, flame retardancy, and high specific strength. Overseas, they have been widely used in various civilian applications since the 1960s and have experienced rapid development; in China, honeycomb technology has only recently begun to be applied across multiple sectors of the civil industry. Metal honeycomb panel curtain walls, owing to their light weight, high strength, and great stiffness, have been extensively employed for exterior wall cladding in high-rise buildings. A honeycomb panel with a total thickness of 15 mm, featuring 1.0-mm-thick aluminum face and back sheets, weighs only 6 kg per square meter. For panels with equivalent stiffness, the honeycomb panel weighs just one-fifth that of an aluminum single-panel and one-tenth that of a steel plate. The interconnected aluminum honeycomb core acts like countless I-beams, with the core material uniformly distributed throughout the panel surface, thereby enhancing panel stability. As a result, its wind-pressure resistance is significantly superior to that of aluminum composite panels and aluminum single panels, while also exhibiting excellent resistance to deformation and outstanding flatness—even when the panel’s grid dimensions are quite large, it can still achieve very high flatness.

Features:

1. Environmentally friendly and energy-efficient. Metal honeycomb panels feature an all-metal structure, making them an eco-friendly, energy-saving building material and one of the premier metal curtain wall materials of the 21st century.

2. Lightweight, high strength, high stiffness, structural stability, and excellent wind-pressure resistance: with a total thickness of 15 mm, the panel and back sheet are both 1.0-mm-thick aluminum honeycomb panels, resulting in a weight of only 6 kg/m². For the same level of stiffness, honeycomb panels weigh only one-fifth as much as solid aluminum panels and one-tenth as much as steel plates. The interconnected aluminum honeycomb core acts like countless I-beams, with the core material evenly distributed throughout the entire panel surface, thereby enhancing panel stability. This design delivers significantly superior wind-pressure resistance compared with aluminum composite panels and conventional solid aluminum panels, while also exhibiting excellent resistance to deformation and outstanding flatness—even when the honeycomb panel’s grid dimensions are quite large, it can still achieve very high flatness.

3. Outstanding sound insulation, thermal insulation, fire resistance, and seismic performance: The honeycomb core within the honeycomb composite panel is divided into numerous closed cells, which effectively inhibit air flow and impede the transmission of heat and sound waves. It can reduce noise from 100–3200 Hz by 20–30 dB, with a thermal conductivity of 0.104–0.130 W/m·K. Consequently, the energy absorption capacity of metal honeycomb panels ranges from 150 to 3500 J/m², making them an energy-efficient material. For example, during heavy rainfall, raindrops striking ordinary metal sheets generate considerable noise, whereas metal honeycomb panels effectively mitigate this issue.

4. The surface exhibits excellent flatness and a wide range of color options; metal honeycomb panels in various specifications and sizes all boast high dimensional accuracy and outstanding resistance to deformation. Aluminum honeycomb curtain wall panels primarily utilize pre-coated fluorocarbon aluminum composite panels, ensuring consistent color throughout the product, reliable quality, and long-lasting vibrancy of the building’s exterior finish. Even after prolonged exposure to sunlight, rain, and industrial air pollution, these pre-coated panels retain their crystalline luster, while also demonstrating superior adhesion and weather resistance—making them widely recognized by the global architectural community as one of the premier materials available.

5. Highly decorative, with convenient and rapid installation: the base panel of metal honeycomb panels can be fabricated from a variety of materials to meet different requirements, such as aluminum, copper, titanium-zinc, steel, and color-coated steel sheets; moreover, diverse design options are available, including stone-look, wood-grain imitation, perforation, and embossing, ensuring exceptional aesthetic appeal. Customized to site-specific dimensions, these panels undergo CNC machining in the factory—cutting, slotting, and edge folding—to achieve precise shaping, delivering reliable quality and effortless, speedy installation.

Purpose:

Suitable for a variety of living and working environments:
Architecture: architectural curtain walls, ceiling suspensions, building roofs, partition walls, raised floors, etc.;
Transportation vehicles: sidewalls of box-type trucks, doors and carbody panels of subways and high-speed trains, interior panels and bulkheads of high-speed vessels and yachts, etc.;
Industrial machinery: vibration isolation tables, automatic drafting boards, printing plates, dyeing and finishing plates, punching presses, mold replication molds, and frames;
Elevator decoration: includes the elevator car walls, car floor, ceiling, car doors, and exterior decorative panels for the elevator lobby, among others.