Extrusion Heat Sink Parts

KingKa Extrusion Heat Sink Parts are made of thermally conductive materials such as aluminum alloy (such as 6063, 6061) or copper, and are produced through an extrusion process. They have excellent heat dissipation performance, are lightweight and durable, and can be customized. KingKa Extrusion heat sink Parts are widely used in LED lighting, computer hardware, power tools, electric vehicles, communication equipment, and industrial equipment, effectively improving equipment stability and life.

KingKa Extrusion Heat Sink Parts Manufacturing Process and Process

Raw Materials：

extruded heat sink parts are mainly made of aluminum alloy (such as 6063, 6061) or copper. Aluminum alloy has the advantages of light weight and excellent thermal conductivity.

The material needs to be inspected and processed before use to ensure that there are no impurities, cracks or other defects.

Heating:

Metal materials such as aluminum or copper need to be heated to a certain temperature (usually 400℃ to 500℃) before extrusion. Heating helps to increase the plasticity of the metal and facilitate the subsequent extrusion process.

Extrusion molding:

The heated metal material is placed in the extruder and pressed into the mold by high pressure. The mold design determines the shape and structure of the final heat sink, such as the arrangement and spacing of the fins.

The extrusion process is usually carried out under high pressure and can produce long strip-shaped heat sinks. According to design requirements, the mold can be customized to adapt to different sizes, shapes and thicknesses.

Cooling and curing:

After extrusion, the heat sink parts will cool naturally or be quickly cured by water cooling to ensure the stability and hardness of the material.

Cutting and trimming:

Extruded heat sinks are usually longer and need to be cut according to customer needs. Cutting can be precisely processed according to different length requirements.

During the trimming process, the surface of the heat sink components will be polished and deburred to ensure that there are no sharp edges and surface defects.

Surface treatment:

The surface of the extruded heat sink can be anodized to enhance corrosion resistance and aesthetics. It can also be sprayed, coated, etc. to improve the durability and anti-oxidation performance of the heat sink.

Inspection:

During the production process, strict quality inspection must be carried out to ensure that the size, surface quality, structural strength, etc. of the heat sink components meet the requirements.

Thickness of Extrusion Heat Sink Parts

Fin thickness:

Usually between 0.3mm and 2mm. Thinner fins increase surface area, which helps improve heat dissipation efficiency, but may reduce structural strength. Fin thickness needs to balance heat dissipation performance and strength requirements according to the design.

Base thickness:

The thickness of the base part is generally 2mm to 5mm to provide a stable support structure and help heat conduction. The greater the thickness, the higher the heat capacity and structural strength of the heat sink, but it also increases weight and material costs.

Overall thickness:

Depending on the application of the heat sink, it is usually between 10mm and 50mm. The specific thickness needs to be designed according to the installation space and heat dissipation requirements of the equipment.

Surface treatment of Extrusion Heat Sink Parts

Anodizing:

Anodizing is the most common surface treatment method, which can improve the corrosion resistance and wear resistance of the heat sink and improve the appearance. The color of anodizing can be customized (such as black, silver, etc.), and it also has certain electrical insulation properties.

Sandblasting:

Sandblasting can remove surface irregularities, improve the surface finish of the heat sink, and make it more beautiful. The blasted surface can be further anodized.

Spray or powder coating:

This treatment provides additional corrosion protection and a variety of color options. Spray coating can improve the appearance, but too thick a coating will slightly affect the heat dissipation efficiency, so the thickness should be carefully controlled.

Thermal Conductive Coating:

In order to improve thermal conductivity, a special thermal conductive coating can be used to help improve heat dissipation efficiency. This type of coating is usually thin and uniform, ensuring heat dissipation while increasing protection.

 Excellent thermal conductivity

 Extrusion Heat Sink Parts are mainly made of aluminum alloy (such as 6063 aluminum) or copper. The thermal conductivity of aluminum is about 200 W/m·K, while copper is higher, reaching 390 W/m·K, which can quickly conduct heat to the surface of the heat sink. Its complex fin structure design can increase the heat dissipation surface area, so that heat can be quickly conducted and diffused to the entire heat sink surface, preventing local overheating and ensuring stable operation of the equipment.

Highly customizable

The shape of Extrusion Heat Sink Parts is highly customizable and can be designed according to the heat dissipation requirements and installation space of different devices. The extrusion process enables it to form a variety of complex structures, such as flat, toothed, circular, serrated, and multi-fin designs to maximize the heat dissipation surface area. By customizing the shape and size, the heat sink parts can be adapted to various devices and optimize the heat dissipation effect, widely meeting the needs of different fields such as LED lighting, electronic devices, and electric vehicles.

Lightness and Durability

Extrusion Heat Sink Parts have excellent lightness and durability. The aluminum alloy used as the main material is not only low in density and light in weight, but also has high thermal conductivity, which is suitable for equipment that requires efficient heat dissipation and strict weight control. At the same time, aluminum alloy has good oxidation resistance and corrosion resistance. After surface treatment such as anodizing, the durability is further enhanced, and it can work stably for a long time and adapt to various harsh environments.

Extrusion Heat Sink Parts play a crucial role in computer hardware, primarily for efficiently managing and dissipating heat generated by processors, graphics cards, and other components. On central processing units (CPUs) and graphics processing units (GPUs), extrusion heat sinks can quickly disperse the heat produced during high-load operations, ensuring they operate at optimal temperatures and preventing overheating, which can lead to performance drops or system crashes. Additionally, these heat sinks are used in power supply units (PSUs) and for motherboard cooling, helping to improve power efficiency and stability. With their lightweight, durable characteristics and customizable designs, extrusion heat sinks are widely applied in various high-performance peripherals, ensuring the equipment maintains excellent performance during prolonged operation. Their high thermal conductivity makes them an indispensable component in computer hardware thermal management.

Extrusion Heat Sink Parts play a key role in heat dissipation in solar inverters. Solar inverters generate a lot of heat in the process of converting DC to AC, especially under high power loads and long-term operation. Extrusion heat sinks are made of high thermal conductivity aluminum alloy materials, which can quickly conduct and diffuse heat from the power devices of the inverter (such as IGBT modules and MOSFETs) into the air, ensuring that the core components of the inverter work at a stable temperature, thereby improving their efficiency and service life.

In addition, the fin design of the extrusion heat sink increases the heat dissipation surface area, allowing heat to be released to the surrounding environment faster and preventing temperature accumulation. Its lightweight and durable characteristics also enable it to work stably for a long time outdoors and in harsh environments, meeting the reliability requirements of solar energy systems. Therefore, the extrusion heat sink in the solar inverter not only improves the heat dissipation efficiency, but also significantly enhances the performance and safety of the inverter, and is an indispensable heat dissipation component in solar equipment.

FAQ

Why is my extruded heat sink not cooling as well as expected?

It could be that the heat sink is not in sufficient contact with the heat source, or dust has accumulated on the heat sink surface, affecting the cooling effect. Ensuring proper installation and keeping the surface clean can improve cooling performance.

How can I tell if the heat sink is overloaded?

If the heat sink surface temperature continues to rise and the device frequently triggers overheat protection, it may indicate that the heat sink is overloaded. Consider a more efficient heat sink or improved ventilation.

How can I ensure that the heat sink is in full contact with the chip during installation?

Using high-conductivity thermal paste or thermal pads can help fill the tiny gaps between the heat sink and the chip to enhance thermal conductivity.

Why is the surface treatment of the extruded heat sink important?

Surface treatment (such as anodizing) can increase the corrosion resistance and radiant heat dissipation ability of the heat sink, extend the service life and improve heat dissipation efficiency.

Does the more fins a heat sink has, the better the heat dissipation effect?

Generally speaking, fins increase the heat dissipation area to help improve heat dissipation, but too many fins may hinder airflow and reduce heat dissipation efficiency. It is important to choose the appropriate number and spacing of fins.

Why does the heat sink make noise?

Generally, the radiator itself is noiseless, but the fan used with it may make noise. Check the balance and lubrication of the fan, and clean the dust regularly.

Can aluminum extruded radiators be used outdoors?

Yes, but it is recommended to choose a radiator with anodized or other anti-corrosion treatment on the surface to adapt to outdoor humidity and temperature changes.

How to determine whether the radiator needs to be replaced?

If there is obvious corrosion or deformation on the surface of the radiator, or the temperature of the device increases significantly, the radiator may need to be replaced.

Can the radiator be reused on different devices?

Yes, but the premise is that the radiator size and shape are suitable for the new device, and the thermal paste is cleaned and reapplied to ensure heat transfer efficiency.

Do extruded radiators require regular maintenance?

Yes, regular cleaning of dust, checking the tightness of the fixing screws, and ensuring that the thermal conductive material with the heat source is intact will help maintain the heat dissipation performance of the radiator.