95% AZ91D Mg Aluminium Extrusion Heat Sink Profiles Powder Coating Surface

Magnesium alloys have advantages in heat dissipation relative to alloys. For
heat sinks of magnesium alloy and aluminum alloy materials of the same volume
and shape, the heat (temperature) produced by a certain heat source is easier
to transfer from the root of the heat sink to the top of the magnesium alloy
than the aluminum alloy. Speed, the top is easier to reach high temperature.
That is, the temperature difference between the root and top of the radiator
made of aluminum alloy material is smaller than that of the radiator made of
magnesium alloy material. This means that the temperature difference between
the air temperature at the root of the heat sink made of magnesium alloy and
the air temperature at the top is larger than that of the heat sink made of
aluminum alloy material, so it accelerates the diffusion and convection of the
air inside the radiator and improves the heat dissipation efficiency.
Therefore, at the same temperature, the heat dissipation time of magnesium
alloy is not half that of aluminum alloy.

As the lightest structural material, magnesium alloy has low specific gravity
(about 23% of steel and 64% of aluminum) and high specific strength and
stiffness.Good thermal and electrical conductivity;With good electromagnetic
shielding, damping, shock absorption, and cutting and die casting process
performance.

Click to Enlarge