Aluminum-based composite heat radiation material for large-power LED lamp

Abstract

The invention relates to a lamp heat radiation material and particularly relates to an aluminum-based composite heat radiation material for a large-power LED lamp and a production method of the aluminum-based composite heat radiation material. The heat radiation material is prepared from the following raw materials in parts by weight: 80-83 parts of aluminum, 8-10 parts of iron, 15-18 parts of zinc, 12-15 parts of aluminum nitride, 1-3 parts of carbon black, 5-6 parts of titanium carbide micro-powder, 2-4 parts of nano graphite, 1-3 parts of sodium sulfate, 0.5-1 part of citric acid, 4-5 parts of magnesium silicate, 10-12 parts of sodium aluminum silicate, 1-2 parts of calcium malate and 4-5 parts of an addition agent. The heat radiation material combines the advantages of components with high heat conduction rate, such as aluminum, iron, zinc, aluminum nitride and the like, and substances including the carbon black, titanium carbide and the like, so that the heat conduction property and the insulation property of the composite material are improved; meanwhile, the compatibility of different materials is improved; the carbon black and the titanium carbide micro-powder are immersed and treated with a citric acid solution so that the loosening density of the powder is improved, a blank is easy to mold and the structure is dense; and the aluminum-based composite heat radiation material has high heat conductivity coefficient and good heat radiation capability and is suitable for packaging the large-power LED lamp.

Description

technical field [0001] The invention relates to a heat dissipation material for a lamp, in particular to an aluminum-based composite heat dissipation material for a high-power LED lamp and a production method thereof. Background technique [0002] LED is called the fourth-generation light source, which has the advantages of energy saving, environmental protection, safety, low energy consumption, and high brightness. It is widely used in daily life. The heat dissipation performance of the LED lamp itself is very important, which directly affects the service life of the lamp. and lighting effects. Existing LED heat dissipation materials are mainly made of metal materials such as aluminum and copper. In actual use, there are disadvantages such as cost limitations and insufficient insulation performance. Therefore, it is necessary to improve the formula of the material to achieve a better heat dissipation effect. , Improve the performance of lamps and prolong their service life...

AI Technical Summary

Problems solved by technology

Existing LED heat dissipation materials are mainly made of metal materials such as aluminum and copper. In actual use, there are disadvantages such as cost limitations and insufficient insulation performance. Therefore, it is necessary to improve the formula of the material to achieve a better heat dissipation effect. , improve the performance of the lamps and prolong the service life