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Formula and preparation method of high-heat conduction self-glazing ceramic

A high thermal conductivity, ceramic technology, applied in the field of inorganic non-metallic material industry and LED lighting, can solve the problems of no thermal conductivity, complex production process, dirty surface, etc., achieve high thermal conductivity and stability, convenient preparation process, Simple formula for effect

Active Publication Date: 2015-08-19
新化县恒睿电子陶瓷科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]The light bracket is the device used to install the drive and heat dissipation structure of the LED bulb lamp. Generally, it is made of aluminum and high-temperature insulating plastic materials. At present, a large number of ceramic brackets are used, which is mature. The heat dissipation of the LED bulb lamp ceramic bracket only depends on the high temperature resistance of the ceramic itself and the heat dissipation structure. The aesthetics needs to be further improved to reduce the production cost of LED ceramic bulb lamps and improve visual effects
[0004]Self-glazed ceramics have been widely used and loved because of their good performance and bright appearance, but the current self-release glazed ceramics are complicated in manufacturing process and high in cost , and most self-glazed ceramics do not have good thermal conductivity, the firing temperature range is narrow, and the supporting force of the main skeleton is not enough, which brings great inconvenience to production and life. High thermal conductivity LED ceramic cooling lamp holder is of great significance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weigh the raw materials of composite glass by weight, including 60% silicon dioxide, 30% potassium albite feldspar, and 10% albite feldspar, and put the silicon dioxide, potassium albite feldspar, and albite feldspar in a grid type wet ball mill Ball milling for 10 hours, control the particle size of the ball milled material to be -200 mesh, accounting for more than 95%; then put the ball milled material in an environment of 1500°C-1800°C to sinter to make a frit, and then put the frit at -5°C-0 Crush the frit with a pressure of 12MPa-15MPa at ℃ and grind it to make composite glass; weigh high thermal conductivity self-release glaze ceramic raw materials according to weight ratio, of which composite glass is 35%-40%, aluminum oxide 45%-58%, kaolin 1%-3%, put aluminum oxide, composite glass, and kaolin in a dry-type CNC ball mill with a material-to-ball ratio of 1:2 for ball milling for 18h-20h, and use high thermal conductivity self-release glaze ceramics 11.3%-15% of t...

Embodiment 2

[0027] Weigh the raw materials of composite glass by weight, including 63% silica, 30% potassium albite feldspar, and 7% albite feldspar, and put the silica, potassium albite feldspar, and albite feldspar in the grid type wet ball mill Ball milling for 10 hours, control the particle size of the ball milled material to be -200 mesh, accounting for more than 95%; then put the ball milled material in an environment of 1500°C-1800°C to sinter to make a frit, and then put the frit at -5°C-0 Crush the frit with a pressure of 12MPa-15MPa at ℃ and grind it to make composite glass; weigh high thermal conductivity self-release glaze ceramic raw materials according to weight ratio, of which composite glass is 35%-40%, aluminum oxide 50%-58%, kaolin 1%-3%, put aluminum oxide, composite glass, and kaolin in a dry-type CNC ball mill with a material-to-ball ratio of 1:2 for 18h-20h, and use high thermal conductivity self-release glaze ceramics 11.3%-15% of the raw material weight is added wi...

Embodiment 3

[0029] Weigh the raw materials of composite glass according to the weight ratio, including 65% silica, 30% potassium albite feldspar, and 5% albite feldspar, and put the silica, potassium albite feldspar, and albite feldspar in the grid type wet ball mill Ball milling for 10 hours, control the particle size of the ball milled material to be -200 mesh, accounting for more than 95%; then put the ball milled material in an environment of 1500°C-1800°C to sinter to make a frit, and then put the frit at -5°C-0 Crush the frit with a pressure of 12MPa-15MPa at ℃ and grind it to make composite glass; weigh high thermal conductivity self-release glaze ceramic raw materials according to weight ratio, of which composite glass is 35%-40%, aluminum oxide 52%-65%, kaolin 1%-3%, put aluminum oxide, composite glass, and kaolin in a dry-type CNC ball mill with a material-to-ball ratio of 1:2 for ball milling for 18h-20h, and use high thermal conductivity self-release glaze ceramics 11.3%-15% o...

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PUM

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Abstract

The invention relates to a high-heat conduction self-glazing ceramic preparation method, which comprises: preparing a composite glass; weighing a high-heat conduction self-release glaze ceramic raw material according to a weight ratio, placing aluminum oxide, the composite glass and kaolin in a dry digital control ball mill with a material-to-ball ratio of 1:2 to carry out ball milling for 18-20 h, and adding white wax with the amount of 11.3-15% of the weight of the high-heat conduction self-release glaze ceramic raw material to prepare a wax cake; melting the wax cake, carrying out hot pressing slurry injection forming through a mold to obtain a billet, and placing the billet into a medium-temperature kiln in the protection of adsorption powder to carry out biscuit firing to obtain the product, wherein the biscuit firing temperature is controlled at 900-960 DEG C; and placing the obtained product in a medium-temperature tunnel kiln to sinter after the adsorption powder is removed, and maintaining the temperature for 0.5-1.0 h so as to obtain the high-heat conduction self-glazing ceramic, wherein the sintering temperature is controlled at 1150-1250 DEG C. The high-heat conduction self-glazing ceramic of the present invention has characteristics of simple formula, convenient preparation process, bright outward appearance, convenient production, and life convenience.

Description

technical field [0001] The invention relates to the fields of inorganic non-metallic material industry and LED lighting, in particular to a high thermal conductivity self-glazed ceramic formula and a preparation method thereof. Background technique [0002] Alumina ceramics have become one of the most widely used ceramic materials in the world today due to their excellent properties such as high temperature resistance, oxidation resistance, and wear resistance, and their composite materials have relatively high strength and toughness. It has broad application prospects in the field of cutting-edge technology of national defense, or in general industrial fields such as machinery, metallurgy, chemical industry and daily life. With the development of science and technology, people have more demand for LED, not limited to environmental protection and price, but more attention to performance and aesthetics. [0003] The lamp holder is the device used to install the drive and hea...

Claims

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Application Information

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IPC IPC(8): C04B35/10C04B35/622
Inventor 宴育权刘贤香
Owner 新化县恒睿电子陶瓷科技有限公司
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