Magnelis： Leading The Future of High-performance Metal Profiles

Zinc-magnesium-aluminum material Channel: Leading the future of high-performance metal profiles

In the fields of industrial manufacturing and construction, the corrosion resistance, strength and processing performance of metal profiles have always been the core considerations. The rise of zinc-magnesium-aluminum (ZAM) alloy materials has brought a revolutionary breakthrough to traditional metal profiles. As a high-performance coating material based on zinc and formed by adding magnesium, aluminum and other elements, the Channel profile made of zinc-magnesium-aluminum alloy (herein

after referred to as "Zinc-magnesium-aluminum Channel") is showing great application potential in photovoltaic brackets, building structures, automobile manufacturing and other fields with its excellent corrosion resistance, excellent mechanical strength and environmental protection characteristics.

1. The core advantages of zinc-magnesium-aluminum alloy: redefining the standard of metal protection

The performance advantages of zinc-magnesium-aluminum alloy come from its unique alloy composition and microstructure. Compared with traditional hot-dip galvanized (GI) or galvanized aluminum (GL) materials, the addition of magnesium (usually 1%-3% by mass) in the zinc-magnesium-aluminum alloy coating has fundamentally changed its corrosion resistance mechanism: Super corrosion resistance The introduction of magnesium allows a denser protective film to form on the surface of the coating - when the coating is corroded, magnesium preferentially dissolves at the anode to form a passivation layer rich in magnesium hydroxide, effectively inhibiting the oxidation of zinc and reducing the corrosion rate to 1/3~1/5 of that of traditional galvanized materials. In the salt spray test, the salt spray resistance time of zinc-magnesium-aluminum Channel can reach more than 1,000 hours, which is 2-3 times that of ordinary hot-dip galvanized materials. It is especially suitable for coastal areas with high humidity and high salt spray or industrial pollution environments.

Excellent forming and welding performance The addition of aluminum alloy components (about 5%-11%) improves the ductility and processing performance of the material, making the zinc-magnesium-aluminum channel less prone to cracking during cold bending, punching, welding and other processing processes, and the surface coating can also remain intact, avoiding the problem of coating peeling during the processing of traditional galvanized materials.

Combination of light weight and high strength The density of zinc-magnesium-aluminum alloy is slightly lower than that of pure zinc coating, and the strength of the base steel can be optimized through micro-alloying. At the same thickness, the tensile strength of zinc-magnesium-aluminum channel is 10%-15% higher than that of ordinary steel, achieving the dual advantages of "lightweight and high strength", especially suitable for weight-sensitive photovoltaic brackets, vehicle frames and other scenes.

Environmental protection and sustainability The zinc-magnesium-aluminum alloy coating adopts a chromium-free passivation process, which complies with RoHS environmental protection standards, reduces heavy metal emissions during production, and the material can be 100% recycled and reused, which is in line with the green manufacturing trend under the global "carbon neutrality" goal.

II. Typical application scenarios of zinc-magnesium-aluminum Channel

1. Photovoltaic bracket: the optimal solution for extreme environments

In the photovoltaic industry, the service life of the bracket system directly affects the economic efficiency of the power station. Traditional hot-dip galvanized brackets are prone to rust and fracture in harsh environments such as coastal areas and deserts, while zinc-magnesium-aluminum Channel has become the first choice for distributed photovoltaic, fishery-photovoltaic complementation, agricultural-photovoltaic complementation and other projects with its corrosion resistance advantage:

Coastal high salt fog areas: In coastal photovoltaic projects such as Fujian and Guangdong, the service life of zinc-magnesium-aluminum Channel can reach more than 25 years, which is 10 years longer than traditional materials and reduces operation and maintenance costs by more than 30%.

Agriculture and fishery scenarios: The dense coating on the surface of the bracket can resist the erosion of pesticides and fertilizer solutions. At the same time, the lightweight design reduces the weight of the bracket, reduces the load-bearing pressure on the roof or water surface, and improves the feasibility of the project.

2. Building structure: comprehensive application from enclosure to load-bearing

In the field of construction, zinc-magnesium-aluminum Channel can be used for steel structure purlins, enclosure brackets, light steel keels, etc., to solve the rust problem of traditional steel:

Steel structure building: When used as roof purlins, the corrosion resistance of zinc-magnesium-aluminum Channel makes it perform well in industrial areas with frequent acid rain or humid southern regions, reducing the risk of structural strength reduction due to rust.

Prefabricated building: The high-precision molding performance meets the processing requirements of prefabricated components, and the coating's resistance to heat damage during welding is better than that of ordinary galvanized materials, ensuring the reliability of node connections.

3. Automobiles and transportation: a double breakthrough in lightweight and durability

In automobile manufacturing, zinc-magnesium-aluminum Channel can be used for chassis brackets, body frames and other components:

Chassis system: resists the erosion of road salt water and mud, extends the life of chassis components, and reduces after-sales maintenance costs.

Commercial vehicle frame: The lightweight characteristics help reduce the vehicle's own weight and improve fuel efficiency, while high strength ensures the safety of the vehicle body.

4. Industry and warehousing: efficient and durable shelf solutions

In the field of storage shelves, the corrosion resistance of zinc-magnesium-aluminum Channel makes it outstanding in humid logistics centers or outdoor storage scenes, reducing the safety hazards caused by rust on the shelves and extending the service life by more than 50%.

III. Technological innovation and industrial ecological construction

1. Upgrading the coating process: diversified development from melting to coating

At present, zinc-magnesium-aluminum alloy coating mainly adopts hot-dip plating process (such as ZAM®, Galvalume® Plus and other brands), and forms a uniform alloy layer by controlling the composition and temperature of the plating solution. In the future, with the introduction of new technologies such as vapor deposition (PVD) and electrophoretic coating, the thickness uniformity and surface flatness of zinc-magnesium-aluminum coating will be further improved to meet higher precision processing needs.

2. Improvement of standards and certification systems

International standard organizations (such as ISO and ASTM) have gradually included zinc-magnesium-aluminum alloy materials into metal protection standards. China is also formulating industry standards such as "Zinc-magnesium-aluminum coated steel plates and strips" to promote the standardization of material performance indicators and promote cross-industry applications.

3. Collaborative innovation in the industrial chain

From upstream zinc-magnesium-aluminum alloy smelting, midstream profile processing to downstream terminal applications, all links in the industrial chain are accelerating collaboration. For example, photovoltaic bracket companies cooperate with steel mills to develop customized zinc-magnesium-aluminum channels, optimize cross-sectional design based on the load characteristics of photovoltaic modules, and achieve a deep integration of material performance and structural design.

IV. Challenges and future prospects

Although the advantages of zinc-magnesium-aluminum channels are significant, their promotion still faces two major challenges:

Cost factors: The current price of zinc-magnesium-aluminum alloy materials is 20%-30% higher than that of traditional hot-dip galvanized steel, which limits the application of cost-sensitive markets in the short term. With the expansion of production capacity and process optimization, costs are expected to drop by 15%-20% in the next 5 years.

Design specifications are lagging behind: the existing design standards for the construction and photovoltaic industries are mostly based on traditional steel parameters. The strength and fatigue performance data of zinc-magnesium-aluminum materials have not been fully included in the specifications. It is necessary to accelerate basic research and standard revision.

Looking to the future, with the improvement of global requirements for material durability and environmental protection, zinc-magnesium-aluminum Channel is expected to become the mainstream choice in the field of metal profiles. In the photovoltaic industry, its combination with tracking brackets and flexible components will give birth to more efficient power station solutions; in the construction field, its integration with steel structures and prefabricated technologies will promote the development of green buildings. As an innovative material with both high performance and sustainability, zinc-magnesium-aluminum Channel is leading the metal profile industry towards a more durable and greener future.

In short, the emergence of zinc-magnesium-aluminum material Channel is not only an upgrade of material performance, but also an innovation from design concepts to application scenarios. With the advancement of technology and the improvement of the industrial ecology, it will replace traditional steel in more fields and become the "green skeleton" supporting modern industry and infrastructure.