◇ "Waterproof Cooling Fan" fin cutting process (Skiving) is to put a piece of metal disposable cutting. So after cutting thin fin density, which greatly increases the heat dissipation area. Even in the case of reducing the amount of wind motors, radiators can still achieve good heat dissipation, thereby greatly reducing the noise generated by the fan. But the cutting process on the technical requirements are relatively high, processing difficulties. Currently on the market using this technology is still relatively small radiator.
◇ Pin means "Waterproof Cooling Fan" heat sink fins (also called cheek piece); Fin is the distance between the adjacent two fins. Pin-Fin Fin ratio is divided by Pin height (without base thickness). The higher the value thus obtained, on behalf of the more advanced aluminum extrusion technology. At present, the maximum ratio is 20. Generally this ratio can reach 15 ~ 17, "Waterproof Cooling Fan" fin quality is very good. If you have a ratio of up to 18 Pin-Fin radiator, then it must be a high-end product.