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Coating material for platinum material in high-temperature environment and preparation method thereof

A high-temperature environment and coating technology, which is applied in the field of platinum material coating materials and its preparation, can solve the problems of increased parts and large losses, and achieve the effects of reducing the number of parts, avoiding unnecessary losses, and reducing oxidation and volatilization losses

Inactive Publication Date: 2013-04-10
IRICO DISPLAY DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, since the volatilized platinum adheres to the refractory materials and heat insulating materials installed around the glass manufacturing equipment, the number of parts to be recovered and refined for platinum increases.
Moreover, the loss caused by the volatilization of expensive platinum materials in spaces that are difficult to recover is also large

Method used

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  • Coating material for platinum material in high-temperature environment and preparation method thereof
  • Coating material for platinum material in high-temperature environment and preparation method thereof
  • Coating material for platinum material in high-temperature environment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The coating material of the platinum material used in the high temperature environment of the present invention includes 50% glass powder, 30% alumina particles, 7.5% silica sol, 7.5% silica particles and 5% water according to mass fraction. Glass; wherein the glass powder particle size is less than 30μm, the alumina particle size is less than 20μm, and the silica particle size is less than 100μm.

[0025] The preparation method of the platinum material coating material used in the high temperature environment is: mixing glass powder, alumina particles and silica particles and sintering at 1250°C, then pulverizing the obtained sintered body, and then pulverizing the obtained sintered body Silica sol and water glass are added to the particles to form a coating material for platinum materials used in a high temperature environment; wherein the size of the crushed particles is less than 80 μm.

[0026] The coating material of the platinum material used in the high temperature e...

Embodiment 2

[0028] The coating material of the platinum material used in the high temperature environment of the present invention includes 80% glass powder, 8% alumina particles, 2% alumina fibers, 5% silica sol, and 5% dioxide by mass fraction. Silicon particles; wherein the glass powder particle size is less than 100μm, the alumina particle size is less than 95μm, the silica particle size is less than 80μm, the diameter of the alumina fiber is 20-60μm, and the length is 100-200μm.

[0029] The preparation method of the platinum material coating material used in the high temperature environment is: mixing glass powder, alumina particles and silica particles and sintering at 1320°C, then pulverizing the obtained sintered body, and then pulverizing the obtained sintered body. Silica sol and alumina fibers are added to the particles to form a coating material for platinum materials used in a high-temperature environment; wherein the size of the crushed particles is less than 50 μm.

[0030] The...

Embodiment 3

[0032] The coating material of the platinum material used in the high temperature environment of the present invention includes 60% glass powder, 10% alumina particles, 7% alumina fiber, 20% silica sol and 3% water glass according to mass fraction. Wherein, the glass powder particle size is less than 100μm, the alumina particle size is less than 100μm, the diameter of the alumina fiber is 20-60μm, and the length is 100-200μm.

[0033] The preparation method of the platinum material coating material used in the high temperature environment is: mixing glass powder and alumina particles and sintering at 1600°C, then pulverizing the obtained sintered body, and then adding silica sol to the obtained pulverized particles , Water glass and alumina fiber, that is, the coating material made of platinum material used in high temperature environment; among them, the size of crushed particles is less than 100μm.

[0034] The coating material of platinum material used in the high temperature en...

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Abstract

The invention provides a coating material for a platinum material in a high-temperature environment and a preparation method thereof. The coating material comprises the following components in percentage by mass: 50-80% of glass powder, 10-30% of aluminum oxide, 5-20% of silicon dioxide and 0-5% of water glass, wherein the silicon dioxide is introduced by means of silica sol or silicon dioxide granules and silica sol. The preparation method of the coating material comprises a sintering method and a water dispersion method. According to the invention, the generation of bubbles in glass caused by hydrogen penetration and the volatilization loss of the platinum material subjected to oxidation corrosion can be prevented, thereby achieving certain practical meanings for improving the yield of a production line and prolonging the life of a glass manufacturing device.

Description

Technical field [0001] The invention relates to a coating material of platinum material used in a high temperature environment and a preparation method thereof. Background technique [0002] The temperature of the equipment (heating electrode, glass liquid channel, stirring tank, etc.) used in the manufacturing process of high-quality glass such as flat panel displays and optical glass is in a high temperature environment of 1200-1600°C and 1000°C or higher, so the manufacturing The material of this kind of device often uses platinum material. This is because platinum has a high melting point, does not form an oxide layer in the atmosphere and does not deteriorate, and has a low possibility of deformation and damage during operation of the device. It is also because platinum has excellent chemical stability, even in this high temperature environment. It will not contaminate the molten glass inside the device and can maintain sufficient durability for a long time. As platinum ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B28/24
Inventor 曾召杨国洪
Owner IRICO DISPLAY DEVICES
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