Magnesium alloy hydrogen supply system frame and manufacturing method thereof

CN120791345APending Publication Date: 2025-10-17SHAANXI SUIDE ZHENMENG MAGNESIUM ALLOY MATERIAL CO LTD
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Patent Information

Application Number
CN202511084312.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-04
Publication Date
2025-10-17

AI Technical Summary

Technical Problem

In the existing technology, magnesium alloys have coarse grains and poor plasticity. They are easily oxidized and thermally cracked during welding, and have poor corrosion resistance, making it difficult to meet the lightweight requirements of the hydrogen supply system frame of hydrogen-powered heavy trucks.

Method used

The extrusion process is used to refine the magnesium alloy grains, argon arc welding is used for welding and heat treatment is performed, combined with passivation and plastic powder treatment to improve the corrosion resistance of the magnesium alloy.

Benefits of technology

The plasticity and toughness of the magnesium alloy are improved, welding thermal cracks are prevented, the corrosion resistance of the magnesium alloy hydrogen supply system frame is enhanced, and a lightweight and high-strength frame structure is achieved.

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Abstract

The invention discloses a magnesium alloy hydrogen supply system frame and a manufacturing method thereof.The method comprises the steps that firstly, according to part section design, a magnesium alloy cast ingot is extruded, and a magnesium alloy profile is obtained; machining the magnesium alloy profile to obtain a magnesium alloy part; then argon arc welding is adopted, the magnesium alloy parts are combined and welded according to a design drawing, heat treatment is conducted, and a left frame and a right frame are obtained; and finally, the left frame, the right frame and other parts are subjected to passivation treatment and molding powder treatment in sequence, and after assembling, the magnesium alloy hydrogen supply system frame is obtained. According to the method, the technical problems that in the prior art, due to semi-continuous casting, grains are coarse and large, plasticity is poor, oxidation and hot cracks are prone to being generated during welding due to the characteristics of low melting point, active chemical performance and the like of magnesium alloy, and corrosion resistance is poor are effectively solved.
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