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High-stability aluminum-base composite heat radiating material for LED

A technology of aluminum-based composite and heat-dissipating materials, which is applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of cost limitation, insufficient insulation performance, etc., achieve good stability, improve surface properties, and shorten sintering time.

Inactive Publication Date: 2014-10-01
YANYANG LAMP SET TIANCHANG CITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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Embodiment

[0012] The LED heat dissipation material in this embodiment is made of the following raw materials in parts by weight: aluminum 72, aluminum nitride 16, cryolite powder 6, cellulose 15, titanium sulfate 0.4, sodium fluorosilicate 5, graphite 10, ferrous chloride 1, lemon Acid 0.5, mineral oil 4, alum 2, sodium silicate 8, additive 5.

[0013] The auxiliary agent is made of the following raw materials in parts by weight: polyaluminum sulfate 5, animal bone 10, sodium sand 3, polyimide 5, silver-coated copper powder 10, magnesium oxide 14, light magnesium carbonate 5, prepared The method is as follows: first calcinate the animal bone at 800-900°C for 12 hours, then cool it for later use, then dissolve polyaluminum sulfate in an appropriate amount of water to prepare an aqueous solution with a concentration of 6%, and put the calcined animal bone and other remaining ingredients into In the solution, mix and stir to disperse for 3 hours, concentrate and dry, grind to 400-mesh fine...

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Abstract

The invention relates to a lamp heat radiating material, in particular to a high-stability aluminum-base composite heat radiating material for an LED and a production method thereof. The heat radiating material is produced through the following raw materials in parts by weight: 70 to 72 parts of aluminum, 14 to 16 parts of aluminium nitride, 4 to 6 parts of cryolite powder, 15 to 18 parts of cellulose, 0.4 to 0.6 part of titanium sulfate, 3 to 5 parts of sodium fluosilicate, 8 to 10 parts of graphite, 1 to 2 parts of ferrous chloride, 0.5 to 0.6 part of citric acid, 2 to 5 parts of mineral oil, 2 to 3 parts of potassium alum, 6 to 8 parts of sodium silicate and 4 to 5 parts of auxiliaries. The heat radiating material integrates the advantages of the components such as aluminum, aluminum nitride, cellulose and auxiliaries and has a good heat conduction property and a good insulation property; after being processed by citric acid dilute solution in an immersing manner, the surface properties of the cellulose and the titanium sulfate are improved; all raw materials are ground in the mixed dilute solution of potassium alum and sodium silicate, so that the sintering effect of the heat radiating material is good, the sintering time is shortened, the surface of a finished product is unlikely to fracture, the stability is good, the heat conduction coefficient is high, the LED lamp can be effectively protected, and the service life of the lamp can be greatly prolonged.

Description

technical field [0001] The invention relates to a heat dissipation material for lamps, in particular to a high-stability aluminum-based composite heat dissipation material for LEDs 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. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/05C09K5/14
Inventor 翁震娣郑金山黄国仁柳加云
Owner YANYANG LAMP SET TIANCHANG CITY
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