Our factory is a professional CNC plus factory. The processed parts adapt to various industries. The accessories of the heat sink have been processed for more than ten years in our factory. The heat sink material is aluminum or copper. which is processed by CNC, drilled, tapped, deburred, cleaned, sandblasted, and then surface oxidized.
The principle of the heat sink is to increase the surface area and speed up the heat dissipation. As the material of heat sink is the metal with smaller specific heat, it absorbs heat very quickly, at the same time, the speed of heat loss is also relatively fast, so the effect of rapid heat dissipation is achieved through heat transfer.
For example, CPU of the computer use a heat sink,It can reduce the temperature of CPU and ensure the work of CPU.
For the material of heat sink, the thermal conductivity of each material is different, which is arranged from high to low: silver, copper, aluminum and steel.
However, if silver is used for heat sink, it will be cost too expensive, so the best solution is to use copper. Although aluminum is much cheaper, its thermal conductivity is not as good as copper.