Why are computer shells generally made of metal?

There are usually many reasons for using metal materials to make the computer mainframe shell. Here are some reasons for reference.

Cause 1: The hardness of metal is usually stronger than that of plastic, silica gel and crystal. , and collision resistance, high temperature resistance.

The second reason: the specific heat capacity of metal is usually very small, and the speed of heat dissipation and heat absorption is very fast. For metals and plastics with the same mass, when the heat is the same, the metal temperature changes greatly, while the plastic temperature changes slightly (Q=cmT, c is specific heat capacity, m is mass, t is temperature change, and q is heat).

Reason three: the current product demand, that is, the current product needs to be designed as a metal shell, not a shell made of other materials.

Reason 4: Increase the stability (inertia) to prevent the chassis from being too light and overturning in four directions (forming a "dump truck"), resulting in damage to the appearance and internal components.