Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method of gas phase deglue pretreating method for gel injecting molding ceramic blank

A technology of gel injection molding and ceramic body, which is applied to clay products, other household appliances, household appliances, etc., to achieve the effect of simple process and low cost

Inactive Publication Date: 2005-11-23
TSINGHUA UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gas-phase pretreatment method of the gel injection molding ceramic body is carried out in sequence as follows:

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Using mullite as a raw material, the average particle size of the particles is 5 μm, and a cylindrical green body with a diameter of 5.4 cm and a height of 4.1 cm is prepared by gel injection molding. After demoulding, the green body was dried in the shade at 35°C for 3 days, and then dried at 80°C for 4 days. After the green body is dried, treat it with 100mg / L ozone at room temperature for 10 hours, and then go through 100°C for 50 hours to degumming to obtain a complete green body without cracks.

Embodiment 2

[0022] α-Al 2 o 3 As a raw material, the average particle size of the particles is 3 μm, and a cylindrical green body with a diameter of 6.4 cm and a height of 5.9 cm is prepared by gel injection molding. After demoulding, the green body was dried in the shade at 15°C for 5 days, and then dried at 90°C for 2 days. After the green body is dried, treat it with 200mg / L ozone at room temperature for 20 hours, and then go through 500°C for 15 hours to degumming to obtain a complete green body without cracks.

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 sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a gas-phase pretreatment of gel injection molding ceramic body debinding by utilizing degrading organic matter in the body to ensure that the ceramic body does not crack during the debinding process, which belongs to the technical scope of the debinding treatment of the body in ceramic molding. method. The ceramic body formed by gel injection molding uses ozone to degrade the organic matter in the body, so that the network macromolecules are broken into small molecules, and the internal stress of the body is released at the same time. The treated green body is completely intact without cracking after thermal degreasing and degumming, and there is no internal defect. The invention has simple process and low cost, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical scope of body debinding in ceramic molding, and in particular relates to a gas-phase pretreatment for gel injection molded ceramic body degumming by utilizing degraded organic matter in the body to ensure that the ceramic body does not crack during the degumming process method. Background technique [0002] The preparation process of high-performance ceramic materials and components is the premise of the development and application of ceramic materials. The molding process plays a connecting role in the entire preparation process of ceramic materials. It is the key to ensuring the reliability, yield and repeatability of ceramic materials and components, and is directly related to industrialization and large-scale production. The molding process of ceramics is divided into two categories: dry molding and colloidal molding. The uniformity of the green body formed by the dry method is poor, and it is difficult to o...

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): C04B33/30C04B35/638
Inventor 杨金龙戴春雷黄勇
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com