What kinds of materials are generally used for LED lamp housings?
Answer: Car parts aluminum, die-cast aluminum, extruded aluminum, iron, zinc alloy, stainless steel.
How many classification methods are there for aluminum materials?
Answer: According to the production method, it is divided into: car parts aluminum, die-cast aluminum, and extruded aluminum. According to the material composition, the model is divided into: 1060, 1070, 1075, 1080, 6063, 6065, etc.
What is the concept of heat pipe?
Answer: Heat pipe: It is an artificial component with excellent heat transfer. The commonly used heat pipe consists of three parts: the main body is a closed metal tube with a small amount of working medium and capillary structure inside. The air and other sundries in the tube must be Excluded.
How does the heat pipe work?
Answer: Three physical principles are used when the heat pipe works: ⑴In a vacuum, the boiling point of the liquid decreases; ⑵The latent heat of vaporization of the same substance is much higher than the sensible heat; ⑶The suction force of the porous capillary structure on the liquid can make Liquid flows.
What is a heat pipe radiator?
Answer: Heat pipe radiator: The use of heat pipe technology can make major improvements to many old radiators or heat exchange products and systems to produce new products.
What is the concept of thermal conductivity?
Answer: "Thermal conductivity": is a measure of the thermal conductivity of a substance. The symbol is λ or K. It is defined as: Take two parallel planes with a distance of 1 meter and an area of 1 meter 2 perpendicular to the direction of heat conduction inside the object. If the temperature difference between the two planes is 1K, it will be conducted from one plane to the other within 1 second. The heat is defined as the thermal conductivity of the substance.
What is the thermal conductivity of several commonly used metals?
Answer: Beryllium thermal conductivity: 200W/(m·K) Copper thermal conductivity: 397w/m·k Copper thermal conductivity: 407w/(m·k) Aluminum conductivity: 238w/(m·k) Tin thermal conductivity : 67W／mK Thermal conductivity of iron: 40×1.163W/ mK
What are the application ranges of heat pipes?
Answer: Heat pipes are now widely used in spacecraft, engines, CPUs, telecommunications equipment, LED lamps, agricultural appliances, etc.
What are the ways to classify light bulbs?
Answer: 1. Tungsten bulbs, including incandescent bulbs, quartz bulbs and halogen bulbs. E-Edison (Edison type screw port); B-Bayonet (bayonet). 2. Commonly used quartz bulbs have Type T (JC), MR ,JDR-C (GU10). 3. Fluorescent tubes, commonly used FL (T5, T8, T12...), PL-S, PL-C, 2D and energy-saving tubes.
What are the treatment methods for aluminum surface?
Answer: Anodizing, electroplating, painting, drawing, polishing, etc.
Which of the several commonly used metal materials has the best thermal conductivity?
Answer: Copper (phosphorus copper, red copper, brass, red copper...).
