Rare Earth Modification of 6063 Aluminum Alloy: Synergistic Enhancement of Strength and Thermal Conductivity

Adding rare earth elements such as Lanthanum (La) and Cerium (Ce):

Refines grain size, reduces Fe impurities (<0.2%), and increases extrusion speed by 35%;

Tensile strength reaches 316 MPa (increased by 25%), and impact toughness increases by 40%;

Thermal conductivity exceeds 220 W/(m·K), approaching the performance of pure aluminum.
BYD battery module production line tests show that rare earth modified 6063 has a deformation of <5 μm at 260℃ operating conditions.