Aluminum heat sinks for common processing methods, metal aluminum heat sinks commonly used for LED bulbs, characteristics of common aluminum heat sinks. Thermal conductivity (W/km) combined with non-metallic radiators. Non-metallic heat sinks are mainly plastics and ceramics. Classes and graphites. LED bulbs Non-metallic materials radiators Plastic radiators are polymer materials, mainly made of high-heat-resistant inorganic fillers such as nylon and PBT. The ceramic heat sink is a polymer inorganic non-metal material, which is generally powdery before processing. Usually 95% alumina powder is sintered by hot pressing at high temperature, which has the characteristics of insulation, high pressure resistance and good consistency.
Graphite heat sinks mainly use heat radiation to dissipate heat, have very good chemical and physical stability, excellent electrical conductivity, and directional heat dissipation. The organic deposition method is generally used in the processing to form an array of nano-scale micro-pipes, which greatly enhances the directional radiation heat dissipation. Material properties of 3 types of heat sinks, material properties of non-metal heat sinks Material thermal conductivity (W/km) Thermally conductive plastics, surface treatment of heat sinks, surface treatment of heat sinks, mainly for metallic aluminum heat sinks, natural color, slight oxidation or Severe oxidation and other methods to improve its heat radiation capacity; plastic and ceramic heat sinks generally do not require special treatment, there is a high thermal emissivity, and sometimes the appearance of spray color for beautification. In the application of LED bulbs in place of incandescent lamps, due to their high requirements for heat dissipation, there are still many problems that need further research and improvement based on the problems encountered in use. Through continuous development, the technical advantages of LED bulbs will be more prominent, and their performance and lighting effects will be more perfect.
Stiff Tulle Mesh Fabric Hard Net,Hard Netting Fabric,Hard Mesh Fabric,Breathable Fabric Hard Net
FUZHOU TEXSTAR TEXTILE CO.,LTD. , https://www.fabrictulle.com