A low-temperature tempering processing method for an anti-distortion aluminum alloy profile
By employing a low-temperature gradient heating and graded slow cooling process, the problems of large temperature gradient and uneven stress release in the high-temperature tempering of aluminum alloy profiles have been solved, achieving high precision and consistency of the profiles, which are suitable for high-end fields such as aviation and rail transportation.
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUBEI LIGE ALUMINUM TECH CO LTD
- Filing Date
- 2026-06-02
- Publication Date
- 2026-07-17
AI Technical Summary
The large temperature gradient and uneven release of residual stress during the high-temperature quenching and tempering process of existing aluminum alloy profiles make them prone to lattice distortion and macroscopic dimensional distortion, resulting in poor product precision and consistency, which cannot meet the requirements of high-end precision applications.
The process employs a coupled approach of low-temperature gradient heating, isothermal tempering, and staged slow cooling. By gradually releasing the residual stress in the profile through low-temperature gradient heating, combined with multi-point temperature monitoring and inert gas protection, the thermal stress caused by rapid cooling is avoided, ensuring uniform reconstruction of the internal lattice of the profile.
It effectively eliminates profile distortion, improves dimensional accuracy and uniformity of mechanical properties, increases yield, and reduces production costs, making it suitable for high-precision profile processing in high-end fields.
Smart Images
Figure CN122406129A_ABST