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A kind of high thermal conductivity self-glazed ceramic formula and preparation method thereof

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, bright appearance

Active Publication Date: 2018-05-22
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 lamp holder is the device used to install the drive and heat dissipation structure of the LED bulb lamp. Generally, aluminum and high-temperature insulating plastic materials are used. At present, a large number of ceramic brackets are used. The mature LED bulb lamp ceramic bracket only relies on the high temperature resistance of the ceramic itself for heat dissipation. And the heat dissipation structure, the heat dissipation effect is poor, and it is easy to cause surface dirt during the assembly process, the assembly cost increases, and it cannot meet the requirements of mass production and people's increasing aesthetics. Further improvement is needed to reduce the cost of LED ceramic bulbs. Production costs, improved visuals
[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

A high thermal conductivity self-release glaze ceramic, the preparation method comprising the following steps: making composite glass; weighing high thermal conductivity self-release glaze ceramic raw materials according to the weight ratio, putting aluminum oxide, composite glass, and kaolin in a material-ball ratio of 1 : 18h-20h of ball milling in a dry-type CNC ball mill, adding white wax according to 11.3%-15% of the weight of high thermal conductivity self-releasing glaze ceramic raw materials to make wax cakes; melting the wax cakes and forming blanks through mold hot-press grouting , protect the blank with adsorption powder and place it in a medium-temperature kiln for biscuit firing to obtain a bisque-fired product, and the bisque firing temperature is controlled between 900°C-960°C; Sintering in a tunnel kiln; the sintering temperature is controlled at 1150-1250°C and kept at a constant temperature for 0.5-1.0 hours to obtain a high thermal conductivity self-releasing glaze ceramic. The formula of the invention is simple, the preparation process is convenient, and the appearance is bright, which brings great convenience to production and life.

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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Patent Type & Authority Patents(China)
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