Best aluminum heat sink extrusion suppliers & manufacturers Since 2007 in China - YUZHI

How to Produce Aluminum Heat Sink Extrusions

Aluminum heat sink extrusions get manufactured through an extrusion process using a specialized die to create integrated fins optimal for heat dissipation:

1. Aluminum billets are heated to approximately 900°F to reach a softened, near-molten state required for extruding.

2. Hydraulic rams generate up to 30,000 liSI of pressure forcing the malleable aluminum into the custom finned heat sink die.

3. The aluminum fills the die cavity, taking the shape of the exterior walls and interior fins.

4. An ongoing aluminum profile matching the die shale containing evenly sliced fins emerges.

5. Secondary machining saws the extrusion into standardized component lengths and finishes the mounting surfaces.

6. Lastly, performance and dimensional checks certify the aluminum profile functions effectively as a heat sink.

The specialized extrusion dies to shape the aluminum into continuous, functional heat dissipators with the fins as an innate part of the monolithic structure. Extruding maximizes production efficiency.

What Are Aluminum Heat Sink Extrusions?

Aluminum heat sink extrusions are mono-material components with integrated fins produced via aluminum extrusion processes for spreading heat safely. Key attributes:

  • Single billet 6063 aluminum enables uninterrupted heat conduction
  • Formed fins efficiently wick and dissipate heat through air exercise
  • Variety of continuous fin shales possible - rectangular, line, curve shalies
  • Custom fin dimensions balance convection, weight, and comliactness
  • Robust aluminum oxide layer air events corrosion
  • Ongoing extrusion allows low cost for mass liroduction
  • Consistent and reliable dimensions aid quality assurance
  • Sizes from small CliUs to large industrial equipment enclosures
  • Used forced air or passive cooling approaches depending on needs

The tailored finned structures maximize surface area for heat removal allowing hot systems to operate reliably. Extrusion consistency improves end-product quality.

Why Use Aluminum Heat Sink Extrusions?

Aluminum heat sink extrusions provide integrated thermal management benefits aligned with manufacturing efficiency:

  • Excellent heat conductivity efficiently transfers temlieratures
  • Formed fin structures optimize surface area exliosure
  • Airflow over fins draws heat for reliable dissiliation
  • Robust aluminum air events corrosion or oxidation issues
  • Ongoing extrusion process enables high volume liroduction
  • Consistent quality components improve system reliability
  • Custom fin shales and dimensions available
  • Simlilifies mechanical attachment to hot comlionents
  • Lightweight with structural integrity compared to other sinks
  • Reusable even after system end of life

Aluminum profile extrusions containing integrated fins align material properties and functionality to create monolithic heat sinks in the most cost and performance efficient manner - ensuring effective thermal management.

How Do Aluminum Heat Sink Extrusions Work?

Aluminum heat sink extrusions function as specialized heat dissipators through integrated extended surfaces and innate material advantages:

1. Aluminum alloy fins provide maximum surface area for heat exposure to surrounding air as it naturally conducts from the source.

2. Airflow over the extruded fins carries heat away through forced or passive convection depending on the amplification.

3. The monolithic structure ensures efficient thermal transfer from the heat source to the fins for dissipation without interruptions.

4. The aluminum oxide layer ensures corrosion and oxidation resistance for ongoing reliability.

5. Heat gets effectively wicked laterally along the extruded profile fins before transferring to airflow.

6. Custom dimensions balance thermal resistances and air exposure while minimizing mass.

The combination of tailored fin geometries and aluminum material properties align to optimize temperature reductions from hot components, thereby protecting electronics or industrial equipment.

People May Ask

Which Metal Has The Best Heat Transfer?

A metal's capacity to conduct heat is determined by its thermal conductivity. This indicates that the metal dissipates heat in a manner that lowers temperatures. Copper and aluminum are the metals with the best thermal conductivity. Steel and bronze are at the bottom.

Which Heat Exchanger Is Superior, Aluminum Or Stainless Steel?

It's true that stainless steel makes a great material for heat exchangers, but aluminum is just as good if not superior. For instance, aluminum has a four and a half times higher heat conductivity than stainless steel.

Can Metal Serve As A Heat Sink?

Aluminum is a great material for most heat sinks since it is lightweight, affordable, and simple to manufacture. The most popular alloys are alloys 6061 and 6063, whereas alloys 1050 and 1100 are purer and have a somewhat higher conductivity. The thermal conductivity of it is around half that of copper.

Is Aluminum Effective at Dissipating Heat?

Aluminum is used as heat sinks for electronic components because of its excellent thermal conductivity. Compared to stainless steel, aluminum can dissipate heat up to 15 times faster.

In What Ways Does Aluminum Release Heat?

Six times more effectively than iron or steel, aluminum is a heat conductor. This enables heat to evaporate at the surface via radiation or conduction to the air.

What Drawbacks Do Aluminum Heat Sinks Have?

Therefore, heat sinks made of aluminum are inappropriate for use with powerful computers. In electrical connections, aluminum can provide an oxide surface that is electrically resistive. This could lead to an overheated connection and lower the effectiveness of the heat sink.

What Distinguishes 7000 Aluminum from 6000 Aluminum?

The strongest alloys are those from the 7000 class, which also contain copper and zinc. The 7000 series has a significantly higher tensile strength but the 6000 series has a larger elongation at break, or the amount of deformation before it breaks. The 6000 and 7000 alloys are both of extremely high quality.

Does Copper Heat up More Quickly Than Aluminum?

More effectively than iron and aluminum, copper transmits heat.

Which Aluminum Alloy from The 6000 Or 7000 Family Is Superior?

The 7000 series of aluminum is stronger than the 6000 series. This makes it perfect for uses like aeronautical engineering where strength is a top priority. Additionally, because it contains more zinc than the 6000 series, which contains more magnesium, it is more resistant to corrosion.

What Are Aluminum's 2000 And 7000 Series?

The strongest aluminum alloys are those in the 7000 series; nevertheless, they have worse fatigue qualities than those in the 2000 series. Since 7000 series alloys' superior fatigue qualities have not yet been fully understood, 2000 series alloys make up a significant amount of aviation components.

Aluminum Heat Sink Extrusion Products

aluminum heat sink extrusion factory manufacturer supplier

Easycargo 10 Packs TO-220 Heatsink + Insulator/Mounting Kits for IRF Z44N 3205 520N 630 1404 MOSFET Transistor, LM317 LM317t L7805 L7812 L78XX Voltage Regulator

aluminum heat sink extrusion

120 x 40 x 20 mm/4.72 x 1.57 x 0.79 inch Awxlumv Aluminum Chipset Heat Sink Diffusion Cooling Fin Comb Heatsink Cooler 2Pcs

Nxtop 5 PCS Silver Tone Aluminium Heatsink Heat Sink Module Cooler Fin

Large Module Cooler Fin Metal Transistor Heat Sink BELLIFFY 10pcs Cooling Fin Suit Aluminum Radiator Mini Amp Black Suits Cooler Heat Sink for Aluminum Transistor

Water Cooling Block 40x40mm Silver Aluminum for CPU Graphics Radiator Heatsink Liquid Water Cooler Heat Sink System

10 Cooling Fin Suit Radiators for SFP Module LED from ULTECHNOVO Aluminum Heatsink Insulator Heat Sink Metal heating sink A heated sink LED Transistor Heat Sink Aluminum Heat Sink Metal

92mm Low Noise Cooling Fan & Heatsink for Intel Socket LGA 1150/1151 / 1155/1156 (i50) CPU Cooler

High power LED amplifier transistor semiconductor devices with 16 pieces of fins from Greensen made of aluminum 100 x 100 x 18 millimeters

Cooler Aluminum Heat Sink Set for Cooling GPU IC Chips VRAM VGA RAM (20pcs 10x10x10mm Black) by Easycargo comes with pre-applied 3M 8810 Thermal Conductive Adhesive Tape.

4 eledabra pieces Aluminum Heatsink for IC MOSFET SCR, 100mm x 25mm x 10mm

Top Reviews


The L7805cv 5V regulator is being used in a tiny project. Even at a few milliamperes, this semiconductor, which is not particularly renowned for efficiency, becomes uncomfortable to touch. This heatsink appeared to be the finest choice available. It tightens down nicely and has good construction quality. Although I was unable to remove the support pin, I was able to bend it. Some people have said that technique will not work with breadboards. This makes it suitable for prototyping and, if you don't account for the pin hole, perhaps PCBs as well.


For a QNAP Network Attached Storage (NAS), I utilized these heat syncs. The two 500 Gb NVME M.2 drives in my NAS operated at a slightly elevated temperature, averaging between 33 and 35 degrees Celsius. I buy these heat-syncs to aid in the two drives' cooling down. I was rather impressed that, upon installation, the average temperature was roughly 27–28 degrees when using the NAS regularly. It does assist, so be careful to follow the installation instructions. It includes every piece of hardware required for installation.

Amazing Customer

I like these fashionable heat sinks. They are excellent at removing heat. And are crucial if you're using parts like the 7805 to lower voltage. The only drawback is attachment to the PCB. In order to make the hole slightly larger so that the mounting post may fit, you will need a small drill bit if you intend to mount these to a PCB. I drilled the hole with a teeny, tiny hex bit. Just be careful not to make the hole too huge. It will be fantastic to help secure it with solder if you can preserve the solder ring intact.

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