How to choose the right material to manufacture heatsink

The heat dissipation performance of the heatsink is affected by many factors: the impact of the material, the impact of the design, the impact of the manufacturing process, etc. winshare introduces the impact of the material on the heat sink and how to choose the right material for heatsink manufacturing.

How to choose the right material to manufacture heatsink is depending on the requirements of heat dissipation, such as high heat dissipation requirements, heat generation, and the need to achieve rapid cooling, rapid heat transfer out, it is necessary to choose a higher thermal conductivity of the material, the thermal conductivity of the material has a very large impact on the effect of heat dissipation, high thermal conductivity and low thermal conductivity of the material difference can be up to tens of times.

So what is the thermal conductivity of commonly used materials, common metals, silver is the highest thermal conductivity, followed by copper, the following is the thermal conductivity of different materials:

Aluminum heatsink

Thermal conductivity (unit: W / mK)

Silver 429

Copper 401

Gold 317

Aluminum 237

Iron 80

Lead 34.8

1070 Aluminum alloy 226

1050 Aluminum alloy 209

6063 Aluminum alloy 201

6061 aluminum alloy 155

In addition to simply look at the material, the choice of radiator material also depends on other factors, such as the strength of the radiator needs to achieve, to aluminum, for example, if the requirement of strength, it will use alloy aluminum profiles as the material of the radiator, because the thermal conductivity of pure aluminum to be better than the alloy, while the strength is softer, the general radiator has a load-bearing requirements, can not use pure aluminum.

Heatsink material selection in addition to the above-mentioned thermal conductivity and strength, aluminum radiator experts remind also need to look at the cost, the cost of raw materials of different materials is also different, generally speaking, high thermal conductivity means high cost, such as silver, the cost is very high, will only be used in high value-added products, or highly sophisticated products, general electronic products or for high-power radiators, generally do not use silver as a material.

In fact, as customers do not need to consider these factors, can be completely handed over to professional radiator manufacturers such as Winshare thermal to customize, you just need to tell them your needs on it.