Extruded Heat Sink Aluminum

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  In fact, as current technology development trend, the air-cooled radiator still has potential to be tapped, and the improvement of the process and materials will further improve the heat dissipation capacity of the air-cooled aluminum extruded heat sink to play a more important role in thermal solution.

  The structure of the air-cooled radiator is very simple, that is, a fan plus an aluminum extruded heat sink, but the products produced by different manufacturers often have a large gap. There are many influencing factors, including the fan air volume and the shape of the heat sink, heat sink material, etc. Here we want to talk to you about the material of the heat sink.

  From the appearance, it seems that all the aluminum extruded heat sinks have a silver exterior. In fact, in the process of learning, we can find far more things than that.

  Regarding the aluminum extruded heat sink, there is a possible misunderstanding. a lot of people think that the material used is pure aluminum, but this is not the case. At present, the aluminum extrusion heat sink material used in the market is aluminum alloy. The reason is very simple. The hardness of the pure aluminum is relatively low, and the series of processes for forming the heat sink, including hot extrusion, cutting and polishing, are difficult. The aluminum alloy materials usually used to make aluminum extruded heat sinks contain aluminum, magnesium, silicon, lead and other elements.

Anyone who learned physics knows that the heat capacity (the amount of heat that a unit material can hold) and heat conduction capacity of the above-mentioned concentrated metals are different, so the heat capacity and heat conduction capacity of aluminum alloy materials will vary with the proportion of various components of the alloy material. vary from one to another.

The so-called heat capacity coefficient is: the cross-sectional area of a material with a length of one meter, the heat required for each degree of temperature increase.

At present, in the industrial manufacturing of heat sinks, the usual standard materials for heat sinks mainly include concentrated aluminum alloys. as follows:

1070 type aluminum alloy 226 W/mK (less used)

1050 type aluminum alloy 209 W/mK (less used)

6061 aluminum alloy 155 W/mK---6061 aluminum alloy commonly used by other manufacturers in the market

6063 aluminum alloy 201 W/mK---Foxconn radiator

At present, the aluminum extrusion heat sinks on the market mainly use 6061 and 6063 aluminum alloys. We can clearly see from the above data that the thermal capacity coefficient of the 6063 aluminum alloy is significantly larger than that of the 6061 aluminum alloy, which is also It means that in the case of a certain volume, the heat sink using 6063 aluminum alloy can accommodate more heat than the 6061 aluminum heat sink, and the natural heat dissipation efficiency is better.

Product specification

Aluminum extruded heat sink images

Extruded heat sink process

FAQ:

Q: What's the lead time of aluminum heat sink extrusions?

A: For prototype orders, the lead time is 1-2 weeks, for mass production order the lead time is 4 weeks.

Q: Do you kick off the hard tooling in house?

A: Yes, we have our own tooling department, we can build the tooling in house.

Q: If I don't have a drawing, can you help to design for me?

A: Yes, we can provide OEM and ODM service.

Q: Can I visit your factory?

A: Yes, you can also visit our factory online by the VR.

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