A method for improving solidification structure homogenization of cast tin-based alloys
By using finite element simulation and real-time acquisition of temperature field data using thermocouple arrays, combined with intelligent temperature control terminals for dynamic parameter correction, the problem of microstructure inhomogeneity in the casting process of tin-based alloys was solved, and the microstructure uniformity and performance stability of the castings were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- KUNMING UNIV OF SCI & TECH
- Filing Date
- 2026-04-28
- Publication Date
- 2026-07-17
AI Technical Summary
Tin-based alloys are prone to defects such as coarse grains, excessive development of columnar crystals, large dendrite arm spacing, and microstructure segregation during the casting process. Traditional casting lacks a real-time acquisition and dynamic correction mechanism for the mold temperature field, resulting in microstructure inhomogeneity and performance instability.
A basic temperature field model is established through finite element simulation, an initial temperature control strategy database is generated, and temperature field data is collected in real time by thermocouple array. Dynamic parameter correction and closed-loop control are performed using intelligent temperature control terminal to achieve local cooling and local heat replenishment regulation, and optimize solidification temperature gradient and cooling rate.
It improves the microstructure uniformity and performance stability of tin-based alloy castings, adapts to castings with complex geometries, reduces differences in cooling rates and temperature gradient deviations, promotes the formation of equiaxed crystals, and inhibits segregation and eutectic agglomeration.
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Figure CN122400540A_ABST