PRE-COATED ALUMINUM PLATE, ALUMINUM PLATE, AND HEAT SINK FOR ONBOARD LED LIGHTING

摘要

Provided are a pre-coated aluminum plate that exhibits superior heat radiation, an aluminum plate, and a heat sink for onboard LED lighting. The pre-coated aluminum plate (10) is used in the heat sink (1) for onboard LED lighting, and includes the aluminum plate (20) and a resin coating-film (3A). The aluminum plate (20) exhibits a thermal conductivity of equal to or greater than 150W/m·K, and the resin coating-film (3A) includes a heat-curable resin and a black pigment component. The resin coating-film (3A) is characterized in that the integrated emissivity in the infrared region having a wavelength of 3-30μm is equal to or greater than 0.80 at 25ºC.