Common materials for making electronic profile heat sinks

Introduce

Nowadays, the electronic products around us are becoming more and more diverse. When we choose, we should not only compare the functions of the products, but also consider the appearance. Appearance and thinness are the most important factors in current electronic products. development trend. Therefore, the increasingly narrow internal space of electronic products will face challenges, but the heat dissipation capacity of electronic products has always been a problem that cannot be ignored. Therefore, how to fully help electronic products to dissipate heat in a limited space is a key issue that needs special attention.

This places high demands on the heat sink. The heat sink is required to be light in weight, strong in thermal conductivity and strong in plasticity. Only relying on the limited size and maximizing the heat dissipation performance can truly protect the heat dissipation of electronic products. So, what materials can we choose to make a heat sink that meets the shape requirements without losing heat dissipation?

No matter which one it is, today I will introduce to you several commonly used electronic profile heat sink materials. Let’s get started:

1. Plastic heat sink

Plastic heat sinks can be made of some metal oxide powder, carbon powder, fiber or ceramic powder in plastic to improve the thermal conductivity of plastic heat sinks. This plastic heat sink is lightweight and can meet the needs of electronic products. In addition, it has strong plasticity and low cost, and is favored by many manufacturers.

However, compared to heat sinks made of metal alloys. The thermal conductivity of plastic heat sinks is not stable, and the thermal conductivity varies greatly. It is not guaranteed to adapt to the working environment in a good working environment, and it may even be deformed after long-term work. Therefore, its security and stability still need to be improved.

2. Copper heat sink

The chemical properties of copper are unstable, and it is difficult to react with oxygen and water in the air at room temperature. Therefore, manufacturers can guarantee a long service life of copper heat sinks without complicated and tedious processing. Secondly, copper heat sink has excellent heat dissipation performance, fast heat absorption and heat dissipation, and its heat dissipation capacity and corrosion resistance are stronger than aluminum.

While the advantages of copper heat sinks are great, they are very expensive. If economic conditions are limited, this type of heat sink is generally not recommended. And its quality is far from meeting the requirements of the brightness of electronic products.

3. Aluminum heat sink

Aluminum alloys are the most popular heat sink construction materials on the market. Among them, 6063 and 6061 aluminum alloys are considered to be of high quality. Although its heat dissipation performance cannot be compared with copper, its heat dissipation coefficient can reach 201 W/MK. It can fully meet the heat dissipation requirements of electronic products. The aluminum heat sink has the characteristics of light weight, simple processing, beautiful appearance and low price, making it more widely used.

In order to make the appearance of the heat sink more decorative, the service life is longer, and the heat dissipation is better, the product will adopt a multi-channel processing technology. The heat sink surface is cleaner and smoother, and the decoration is reinforced by sandblasting, brushing, frosting, etc. The heat sink baking paint process is improved, and the overall wear resistance, corrosion resistance and heat resistance of the heat sink are improved, so that the performance and durability of the heat sink are improved in quality.

4. Graphite heat sink

As a new type of thermal conductivity and heat dissipation material, graphite is mainly composed of a single carbon element and has thermal conductivity comparable to that of metal materials. It is a good heat sink manufacturing material. However, the cost of the graphite material itself is very expensive, and the processing and die-cutting management costs of the graphite heat sink are sometimes even more expensive than the material. Therefore, the cost of using graphite heat sinks is high, and its application is not very extensive.

Conclusion

Each electronic profile heat sink material has its own unique characteristics and benefits. Hopefully knowing these materials will make it easier for you to buy the right heatsink.

If you are not sure which heatsink is right for you, or consider a need for customization, please contact Winshare to provide you with quality products and related custom manufacturing services. Contact us for more information!