Zinc magnesium aluminum guide rail

The zinc-magnesium-aluminum cold-formed guide rail is a guide rail product made of zinc-magnesium-aluminum alloy strip through cold-forming process. It has both the material advantages of zinc-magnesium-aluminum alloy and the forming characteristics of cold-forming process. It has unique advantages in structural stability, processing efficiency and application scenarios. It is currently mainly used in the photovoltaic industry and is expected to enter more markets in the future.

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Photovoltaic overall solution

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Details Introduction

The zinc-magnesium-aluminum cold-formed guide rail is a guide rail product made of zinc-magnesium-aluminum alloy strip through cold-forming process. It has both the material advantages of zinc-magnesium-aluminum alloy and the forming characteristics of cold-forming process, and has unique advantages in structural stability, processing efficiency and application scenarios.

1. Production process of zinc-magnesium-aluminum cold-formed guide rail

Cold bending forming is its core process. Different from casting or hot extrusion, it realizes the precise shaping of the guide rail section through mechanical deformation at normal temperature. The specific steps are as follows:

Raw material preparation

Pre-rolled zinc-magnesium-aluminum alloy strip (usually 0.5-3mm thick) is used, and the alloy composition needs to be adjusted according to the purpose (such as increasing the magnesium content to enhance the strength, and increasing the aluminum content to optimize the cold processing performance).
The surface of the strip may be pre-treated (such as galvanizing, passivation treatment) to improve subsequent corrosion resistance.

Cold roll forming

The alloy strip is gradually bent and rolled into shape through multiple sets of continuously arranged roller molds, and the cross-sectional shape of the guide rail is formed in one processing (such as C-shaped, U-shaped, Z-shaped, groove-shaped, etc., which can be customized according to design requirements).
During the cold bending process, the material is not heated at high temperature, and the metal is plastically deformed by mechanical force, which can accurately control the dimensional accuracy of the guide rail (the cross-sectional dimension error can be controlled within ±0.1mm), and the surface finish is high (no additional grinding is required).

Follow-up processing

Fixed length cutting : According to the actual use length, the continuously formed guide rails are cut into fixed-length products by precision sawing equipment.
Connection hole processing : Some guide rails need to be drilled or punched on the side or end for installation and fixation. CNC punch presses are usually used to ensure the accuracy of the hole position.
Surface strengthening (optional) : Such as low-temperature aging treatment (to improve material hardness) or secondary surface treatment (such as spraying, anodizing) to further enhance corrosion resistance or aesthetics.

2. Performance characteristics of zinc-magnesium-aluminum cold-formed guide rail

High precision and consistency
The cold bending process is produced by standardized molds, and the cross-sectional dimensions and straightness deviation of the same batch of guide rails are extremely small, which is suitable for scenarios requiring batch assembly (such as guide rail splicing of automated production lines).

Balanced mechanical properties
The "work hardening" effect in the cold bending process can improve the yield strength of the material (15%-30% higher than the cast state), while retaining the lightweight characteristics of zinc-magnesium-aluminum alloy (density of about 2.6-2.8g/cm³, only 1/3 of that of steel), taking into account both strength and weight reduction requirements.

High efficiency and low cost
Cold bending forming is continuous production, with fast processing speed (up to several meters per minute), and high material utilization (almost no waste). Compared with casting or hot extrusion processes, the production cost is lower, which is suitable for large-scale mass production.

Good corrosion resistance
Zinc-magnesium-aluminum itself has certain corrosion resistance, and with surface treatment before cold bending (such as galvanizing), it can adapt to humid and mildly corrosive environments (such as outdoor equipment, bathroom furniture).

Hot-rolled H-beam

Zinc-magnesium-aluminum steel pipe

Hot-rolled H-beam

Zinc-magnesium-aluminum steel pipe

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