High thermal conductive casting Aluminum alloy and the manufacturing method thereof
The aluminum alloy with specific nickel, iron, and optional manganese, copper, magnesium, or silicon content addresses the limitations of existing alloys by achieving high thermal conductivity and improved hot crack resistance, reducing costs and enhancing cooling efficiency.
Patent Information
- Application Number
- KR1020200140202
- Authority / Receiving Office
- KR · KR
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2020-10-27
- Publication Date
- 2026-08-05
- Estimated Expiration
- 2040-10-27
AI Technical Summary
Existing high thermal conductivity aluminum alloys for casting suffer from poor mechanical properties, high manufacturing costs, and inferior thermal conductivity compared to extruded materials, with cast materials having a thermal conductivity of approximately 160 W/mK, which is 20% lower than extruded materials.
A high thermal conductivity aluminum alloy comprising 1.0 to 1.3 wt% nickel, 0.3 to 0.9 wt% iron, and the remainder aluminum, with a eutectic FeNiAl9 phase of 5 wt% or more, and optionally including up to 0.4 wt% manganese, copper, magnesium, or silicon, to achieve a thermal conductivity of 200 W/mK or higher without requiring special heat treatment.
The alloy achieves a 120% improvement in thermal conductivity compared to conventional cast aluminum alloys, reduces manufacturing costs, and enhances cooling efficiency while maintaining excellent hot crack resistance.