Extruded Aluminum Heatsinks With Anodizing

  Extruded heat sink is an essential component used largely in electronic devices to absorb and dissipate heat generated by the device by increasing the surface area available for cooling. Extruded heat sink provides an ideal solution for effective heat management within confined spaces while maintaining optimal efficiency. 

Materials used in Extruded Heat Sink Production:

  The most common materials used in the production of extruded heat sinks is aluminum, aluminum is the most frequently used material due to its favorable thermal conductivity properties combined with easy processing and excellent corrosion resistance. The material selected for the extruded heat sink production depends on the efficiency, cost-effectiveness, physical properties, and other specific requirements of the cooling system.

Extruded Heat Sink Manufacturing Process:

Step 1: Extrusion:

  The first major step in the manufacturing of extruded heat sinks is the extrusion process, the process involves pushing or pulling the material through the extrusion die, which results in creating the desired shape. The extrusion process is carried in large machines called extruders, which apply pressure to the heated alloy material to squeeze it out through the die, the extruded profile is then guided through the cooling chamber to solidify the material, which can take different shapes, including circular tubes, squares, and complex and customized designs.

Step 2: Cutting:

  After the cooling process, the extruded material is cut into the desired length with a fast saw. Typically, the cutting process is done quickly, and the cutting blades are sand-coated, ensuring no contamination or burrs on the cut edges. The cutting process involves cutting to size the numbers of pieces needed in one operation.

Step 3: Machining:

  Machining is typically the next step carried out after cutting the extruded heat sink material to size, the process includes drilling, milling, cutting, and other special CNC machining techniques to create unique shapes and designs. The machining process is necessary to get the mounting holes and any other structures needed for the design.

Step 4: Surface Treatment:

After machining, extruded heat sinks typically have a rough surface. The surface treatment process includes smoothening the rough surfaces to improve the aesthetics of the heat sink. There are several surface treatment methods involved in the process, including anodizing, painting, polishing, sandblasting, among others. Anodizing is the most commonly used surface treatment process that creates a protective film on the surface of an aluminum heat sink to make it more resistant to wear and tear, corrosion, and oxidation.

Varieties of heat sink

Thermal simulation

Factory and workshop

 

Certificates

  Sinda Thermal is a leading thermal manufacturer in China, our factory was founded in 2014, and located in Dongguan city, China, we are offering varieties of heatsinks and other precious metal parts. Our plant possesses 30 sets advanced and high precious CNC machines and stamping machines, also we have many testing and experiment instruments and professional engineering team, so our company can manufacture and provide high quality products with high precision and excellent thermal performance. Sinda Thermal is commited to a range of heat sinks which are widely used in new power supply, New energy vehicles, Telecommunications, Servers, IGBT, and Madical. All the products accord with Rohs/Reach standard, and the factory is qualified by ISO9001 and ISO14001. Our company has been a partner with many customers for good quality, excellent service and competitive price. Sinda Thermal is a great heat sink manufacturer for the global customers .


FAQ
1. Q: Are you a trading company or manufacturer?
    A: We are a leading heat sink manufacturer, our factory has been founded over 8 years, we are professional and experienced.

2. Q: Can you provide OEM/ODM service?
    A: Yes, OEM/ODM are available.

3. Q: Do you have MOQ limit?
    A: No, we don't set up MOQ, prototype samples are available.

4. Q: What's the lead time of the production?
    A: For prototype samples, the lead time is 1-2 weeks, for mass production, the lead time is 4-6 weeks.

5. Q: Can I visit your factory?
    A: Yes, Welcome to Sinda Thermal.

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