Supercharge Your Innovation With Domain-Expert AI Agents!

A method for preparing film-coated wear-resistant ceramic microspheres by non-dipping method and wear-resistant ceramic microspheres

A technology of wear-resistant ceramics and impregnation method, which is applied in the field of wear-resistant ceramic microspheres. It can solve the problems that the impregnation method cannot accurately control the thickness of the wrapping film, the difficulty of debinding and degreasing, and high thermal volatility, so as to achieve a friendly working environment and improve the mixing efficiency. Evenness and spheroidization, the effect of uniform particle size

Active Publication Date: 2022-06-07
HUNAN KOSEN NEW MATERIAL
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the impregnation method generally uses thermoplastic organic substances (such as organic silica gel, paraffin wax mixture, etc.), these organic substances are highly volatile when heated, and there are certain environmental protection problems. At the same time, the impregnation method cannot accurately control the thickness of the wrapping film layer, and the thickness is too high. Difficulty in degreasing, insufficient thickness will cause water leakage in the film layer during isostatic pressing in the later stage

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for preparing film-coated wear-resistant ceramic microspheres by non-dipping method and wear-resistant ceramic microspheres
  • A method for preparing film-coated wear-resistant ceramic microspheres by non-dipping method and wear-resistant ceramic microspheres

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0069] 1) Preparation of rolling ball blank: the ceramic ball is added to the rolling machine, and the ceramic ball seed is added to the ball raw material in the rolling machine in the rolling machine to obtain the rolling ball blank.

[0070]2) Rolling: The rolling ball blank and organic monomer powder are added to the rolling molding machine for rolling coating and curing, and the ceramic ball blank with organic ball shell coating is obtained.

[0071] 3) Isostatic pressing: The ceramic ball blank with organic spherical shell coating is isostatic pressing processing in a cold isostatic press to obtain an organic monomer composite ceramic blank.

[0072] 4) Drying: The organic monomer composite ceramic blank is dried, and the organic monomer in the organic monomer composite ceramic blank is removed to obtain the ceramic blank.

[0073] 5) Sintering: The ceramic body is placed in the sintering machine for sintering processing to obtain the sintered ball blank.

[0074] Preferably,...

Embodiment 1

[0104] 28kg alumina, 42kg zirconia, 6kg lanthanum fluoride, 4kg titanium fluoride were mixed and stirred for 10 min to obtain a dry mixture. Dissolve 20kg of zirconia chloride in water to obtain wet material.

[0105]Then 10kg of zirconia ceramic seed balls are put into the rolling machine, the rolling molding machine is started and the speed of the rolling molding machine is adjusted to 25r / min. Then, during the rolling process, dry mixture (dry mixture is added at a rate of 150g / min) and wet material (wet material is added at a rate of 75g / min) is added to roll. After the rolling is completed, the rolling ball material is dried at 70 °C for 600 min, and the rolling ball blank is obtained.

[0106] Then the dry rolling ball blank is placed in the rolling machine, the rolling machine is started and the speed of the rolling machine is adjusted to 30r / min. Then, during the rolling process, an organic monomer powder (bisphenol A epoxy resin) was added at a rate of 80g / min for rolling...

Embodiment 2

[0110] 27kg alumina, 40kg zirconia, 6kg lanthanum fluoride, 4kg titanium fluoride were mixed and stirred for 10 min to obtain a dry mixture. Dissolve 23kg of zirconia chloride in water to obtain wet material.

[0111] Then 10kg of alumina ceramic balls are put into the rolling machine, start the rolling machine and adjust the speed of the rolling machine to 25r / min. Then, during the rolling process, dry mixture (dry mixture is added at a rate of 150g / min) and wet material (wet material is added at a rate of 75g / min) and 5kg of hydrogen peroxide are added to roll. After the rolling is completed, the rolling ball material is dried at 80 °C for 500 min to obtain the rolling ball blank.

[0112] Then the dry rolling ball blank is placed in the rolling machine, the rolling machine is started and the speed of the rolling machine is adjusted to 30r / min. Then, during the rolling process, an organic monomer powder (bisphenol A epoxy resin) was added at a rate of 80g / min for rolling coating...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a non-immersion method for preparing film-coated wear-resistant ceramic microspheres. Firstly, the prefabricated spherical blank is obtained by rolling forming method, and then the surface of the prefabricated spherical blank is rolled and coated with a layer of thermosetting organic polymer coating layer. By controlling the amount of organic polymer added and rolling coated The rolling speed further controls the film thickness of the coating layer. After the coating is completed, it is heated and solidified to obtain a coated ceramic ball blank that meets the cold isostatic pressing process conditions. Finally, it is pressed in a cold isostatic press to obtain a composite ceramic green body. , and finally sintered and shaped to obtain a sintered ball. The invention can produce ceramic microspheres less than Φ1mm, and has the advantages of high yield of roll forming method and high compactness of drop ball forming method. At the same time, it also has the advantages of friendly working environment and controllable film covering.

Description

Technical field [0001] The present invention relates to the preparation of ceramic microspheres, specifically relates to a method of preparing coated wear-resistant ceramic microspheres by non-impregnation method and wear-resistant ceramic microspheres prepared by the method, which belongs to the field of ceramic microsphere preparation technology. Background [0002] Ceramic microspheres have an extremely wide range of uses, generally used in military, pharmaceutical, chemical, environmental protection, nuclear technology and other industries. It is suitable for strengthening materials and filling materials of various media (such as metal or polymer matrix composites), and can improve some properties of matrix materials, such as reinforcement, wear resistance, abrasion resistance, improved hardness, chemical corrosion resistance, weather resistance, etc., and the application prospect is very broad. As the demand for powder grinding to enter the sub-micron and nanoscales expands,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/622C04B35/628C04B35/10C04B35/48C04B35/584C04B35/565
CPCC04B35/622C04B35/62813C04B35/62823C04B35/62836C04B35/62834C04B35/62894C04B35/10C04B35/48C04B35/584C04B35/565C04B35/62828C04B2235/3206C04B2235/3208C04B2235/3225C04B2235/3224C04B2235/3229C04B2235/6562C04B2235/94C04B2235/95C04B2235/77C04B2235/96
Inventor 郑保昌卫义成史伟钟雪琴
Owner HUNAN KOSEN NEW MATERIAL
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com