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Introduction Of Heat Sink
Jul 28, 2017

In the case of heat sink material, each material has different thermal conductivity, according to heat conduction performance from high to low, respectively silver, copper, aluminum, steel. But if silver is used as a heat sink it will be too expensive, so the best solution is to use copper. Although aluminum is much cheaper, it is clear that the thermal conductivity is not as good as copper (about 50% of copper).

At present, the commonly used heat sink material is copper and aluminum alloy, both have their advantages and disadvantages. Copper heat conductivity is good, but the price is higher, processing difficulty is high, the weight is too big (many pure copper radiators all exceed the CPU to the weight limit), the heat capacity is small, and easily oxidize. and pure aluminum is too soft, can not be used directly, is the use of aluminum alloy to provide sufficient hardness, the advantages of aluminum alloy is low price, light weight, but the thermal conductivity than copper is much worse. Some of the radiator on each of the director, aluminum alloy radiator base embedded in a copper.

For ordinary users, the use of aluminum heat sink is enough to meet the need for heat.

Northern Winter heating radiator is also called heat sink.

Heat sink in the composition of the radiator occupies an important role, in addition to the active cooling fan, the assessment of a radiator is good or bad, to a large extent depends on the heat sink itself and heat conduction capacity.