Anodized Pin Fin Heat Sink Custom
What is heat sink anodizing ?
Anodic oxidation is the process of taking a metal (mainly aluminum) as the anode and electrolyzing it in a suitable electrolyte to form an inorganic oxide film on the surface of the product. Metal oxide film has corrosion resistance, wear resistance, insulation and other properties, and can be used as the protective layer of metal or the bottom layer of paint. The oxide film can also absorb a variety of organic and inorganic dyes, making the surface of metal products show bright colors and play a decorative role.
Pin fin heat sink anodizing main process
Surface pretreatment: Clean the surface of the heat sink by chemical or physical methods to expose the pure material in order to obtain a complete and dense artificial oxide film. Bright or matt surfaces can also be obtained by mechanical means.
Anodic oxidation: Under certain technological conditions, the surface of the heat sink after surface pretreatment will undergo anodic oxidation to form a layer of dense, porous and strong adsorption oxide film.
Hole Sealing : The pores of the porous oxide film formed after anodizing are sealed, so that the oxide film has better anti-pollution, corrosion resistance and wear resistance. The oxide film is colorless and transparent. With the strong adsorption of the oxide film before sealing, some metal salts can be adsorbed and deposited in the film hole, which can make the surface of the heat sink show many colors
Anodized pin fin heat sink performance test methods
The following methods can be used to verify and test the heat dissipation performance of anodized heat sinks:
1. Thermal resistance test method: fix the heat sink and the radiator, connect the current to one end of the heat sink through the power supply, and the other end is grounded. Then place the heat source on the surface of the radiator and measure the temperature change of the surface. Evaluate the heat dissipation efficiency by calculating the thermal resistance.
2. Thermal conductivity test method: make a group of heat sinks with different thickness and test their thermal conductivity. The heat conduction performance of the heat sink can be obtained by testing the heat sink with different thickness.
3. Thermal cycle test: put the heat sink into the heat box, after a certain time, measure the room temperature and surface temperature of the heat sink, and record the data. It can be repeated several times until reliable data is obtained to evaluate the durability and stability of the heat sink.
4. Simulation test: use computer simulation software to simulate the radiator. Through the simulation test, the heat flow distribution of the radiator can be obtained to evaluate its heat dissipation performance. The above are the verification and test methods of heat dissipation performance of several common anodic oxidation heat sinks. In the actual test, it is also necessary to consider the control of the test environment, the accuracy of data and other factors. At the same time, pay attention to safety measures to avoid safety accidents caused by test operation errors.
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Anodized pin fin heat sink custom manufacturer
Famos Tech is a custom manufacturer specializing in heat sinks, we have advanced production equipment and high-quality products with competitive price. The following is our anodizing workshop
Pin fin heat sink during anodizing, there will be a lot of dense pores on the surface, which can easily absorb some metal salts or dyes, thus forming a colorful surface of aluminum products.
Custom pin fin heat sink professional designer
We have more than 10 rich-experienced design engineers whom are in heat sink, whether you already have heat sink design file, or you only have a concept, Famos Tech is here to support you from design to mass production, free design and free samples for you to start your project.
Just contact us and let us know your detailed requirements, our heat sink designer can fast complete the heat sink design , if you already have a design file, our heat sink designer can help you optimize it to get optimal heat dissipation performance and save material cost.
