CN104141068A - Antistatic insulating aluminum-based composite heat sink material applied to LED - Google Patents

Abstract

The invention relates to a lamp heat sink material, and particularly relates to an antistatic insulating aluminum-based composite heat sink material applied to an LED and a production method of the material. The heat sink material is prepared form the following raw materials in parts by weight: 75-80 parts of aluminum, 10-12 parts of aluminum nitride, 1-2 parts of tin antimony oxide, 2-3 parts of lithium carbonate, 8-10 parts of kaolin, 5-7 parts of aramid fiber pulp, 4-5 parts of steel fiber micro-powder, 12-13 parts of ceramic fiber powder, 7-8 parts of quartz sand, 4-6 parts of graphite powder and 4-5 parts of an additive. The heat sink material disclosed by the invention integrates the advantages of the components such as aluminum, aluminum nitride, kaolin, aramid fiber pulp and ceramic fiber powder, and has both good heat conductivity and good insulation performance; the added additives can be used for improving the compatibility of the raw materials and the sintering effect; the prepared heat sink material is compact in structure, bright and clean in surface, good in electric insulativity, unlikely to cause static electricity on the surface, firm, rust-proof and durable; due to good heat sink capability, the heat sink material can be used for well protecting an LED lamp and effectively prolonging the service life of the lamp.

Description

Antistatic insulating aluminum-base composite heat sink material for a kind of LED

Technical field

The present invention relates to light fixture heat sink material, be specifically related to a kind of LED Antistatic insulating aluminum-base composite heat sink material and production method thereof.

Background technology

LED be called as the 4th generation light source, there is the advantages such as energy-saving and environmental protection, safety, less energy-consumption, high brightness, be widely used in daily life, the heat dispersion of LED lamp body itself is most important, directly has influence on work-ing life and the illuminating effect of light fixture.Existing LED heat sink material is to be mainly made up of the metallic substance such as aluminium, copper, there is in actual use the shortcomings such as cost restriction, insulating property be inadequate, therefore the formula of necessary improvement material, make material reach more good radiating effect, the use properties of improving light fixture, increases the service life.

Summary of the invention

The object of the invention is to, a kind of LED Antistatic insulating aluminum-base composite heat sink material is provided, improve the use properties of material, reach and extend the light fixture effect in work-ing life, to achieve these goals, the technical solution used in the present invention is as follows:

Antistatic insulating aluminum-base composite heat sink material for a kind of LED, it is characterized in that, material of the present invention is made up of the raw material of following weight part: aluminium 75-80, aluminium nitride 10-12, tin-antiomony oxide 1-2, Quilonum Retard 2-3, kaolin 8-10, aramid pulp 5-7, steel fiber micro mist 4-5, ceramic fiber powder 12-13, quartz sand 7-8, Graphite Powder 99 4-6, auxiliary agent 4-5.

Described auxiliary agent is made up of the raw material of following weight part: fluorine carbon emulsion 2-3, the magnesium salicylate 4-5 of Zinic stearas 1-3, solid content 45%, Sodium Tetraborate 1-2, inorganic Ge powder 5-8, four acicular type zinc oxide crystal whisker 12-15, preparation method is: first Sodium Tetraborate is dissolved in suitable quantity of water, be prepared into the aqueous solution that concentration is 8-10%, then drop into magnesium salicylate, four acicular type zinc oxide crystal whisker, mixing and ball milling 1-2h, subsequently gained slurry is dried, disperse to be dried after 2-3h with other remaining component mix and blend again, make 300-400 order fine powder, to obtain final product.

Antistatic insulating aluminum-base composite heat sink material for described a kind of LED, its manufacture craft comprises following steps:

(1) all the components mix and blend is disperseed, after 1-2h, drop into ball-milling processing in ball mill, make 10000-hole sieve surplus≤0.05% of gained material;

(2) material of step (1) gained is sent into compression moulding in mould, under nitrogen atmosphere with after the temperature sintering 4-6h of 650-700 DEG C, through naturally cooling to room temperature and get final product.

The invention has the advantages that: the advantage that combines the compositions such as aluminium, aluminium nitride, kaolin, aramid pulp, ceramic fiber powder compared with conventional aluminum heat exchanging material on raw material; have good heat conduction and insulating property concurrently; the auxiliary agent adding can be promoted the consistency of stock yard; improve sintering effect; the heat sink material compact structure preparing; any surface finish; electrical insulating property is good; surface is difficult for producing static; firm rust protection; durable in use, good heat-sinking capability can be good at protecting LED light fixture, effectively improves the work-ing life of light fixture.

Embodiment

Embodiment

The present embodiment LED heat sink material is made up of following weight part raw material: aluminium 80, aluminium nitride 12, tin-antiomony oxide 2, Quilonum Retard 3, kaolin 10, aramid pulp 6, steel fiber micro mist 5, ceramic fiber powder 13, quartz sand 7, Graphite Powder 99 6, auxiliary agent 5.

Described auxiliary agent is made up of the raw material of following weight part: the fluorine carbon emulsion 3 of Zinic stearas 3, solid content 45%, magnesium salicylate 5, Sodium Tetraborate 1, inorganic Ge powder 8, four acicular type zinc oxide crystal whisker 15, preparation method is: first Sodium Tetraborate is dissolved in suitable quantity of water, be prepared into concentration and be 8.5% the aqueous solution, then drop into magnesium salicylate, four acicular type zinc oxide crystal whisker, mixing and ball milling 2h, dries gained slurry subsequently, then disperses to be dried after 3h with other remaining component mix and blend, make 400 order fine powders, to obtain final product.

Antistatic insulating aluminum-base composite heat sink material for described a kind of LED, its manufacture craft comprises following steps:

(1) all the components mix and blend is disperseed, after 2h, drop into ball-milling processing in ball mill, make 10000-hole sieve surplus≤0.05% of gained material;

(2) material of step (1) gained is sent into compression moulding in mould, under nitrogen atmosphere with after the temperature sintering 6h of 650-700 DEG C, through naturally cooling to room temperature and get final product.

The more conventional LED of the prepared heat sink material of the present embodiment improves 28.1% with the thermal conductivity of heat sink material, and thermal diffusivity improves 25.9%, heat balance time shorten in average 164min, and light fixture improves 24.8% work-ing life, surperficial more difficult corrosion.

Claims (2)

1. an Antistatic insulating aluminum-base composite heat sink material for LED, it is characterized in that, this heat radiation is made up of the raw material of following weight part: aluminium 75-80, aluminium nitride 10-12, tin-antiomony oxide 1-2, Quilonum Retard 2-3, kaolin 8-10, aramid pulp 5-7, steel fiber micro mist 4-5, ceramic fiber powder 12-13, quartz sand 7-8, Graphite Powder 99 4-6, auxiliary agent 4-5;

Described auxiliary agent is made up of the raw material of following weight part: fluorine carbon emulsion 2-3, the magnesium salicylate 4-5 of Zinic stearas 1-3, solid content 45%, Sodium Tetraborate 1-2, inorganic Ge powder 5-8, four acicular type zinc oxide crystal whisker 12-15, preparation method is: first Sodium Tetraborate is dissolved in suitable quantity of water, be prepared into the aqueous solution that concentration is 8-10%, then drop into magnesium salicylate, four acicular type zinc oxide crystal whisker, mixing and ball milling 1-2h, subsequently gained slurry is dried, disperse to be dried after 2-3h with other remaining component mix and blend again, make 300-400 order fine powder, to obtain final product.

2. Antistatic insulating aluminum-base composite heat sink material for a kind of LED as claimed in claim 1, its production method is as follows:

(1) all the components mix and blend is disperseed, after 1-2h, drop into ball-milling processing in ball mill, make 10000-hole sieve surplus≤0.05% of gained material;

(2) material of step (1) gained is sent into compression moulding in mould, under nitrogen atmosphere with after the temperature sintering 4-6h of 650-700 DEG C, through naturally cooling to room temperature and get final product.