Manufacturing method of zirconium oxide porcelain piece used for all-ceramic false tooth

A production method and technology of zirconia, applied in dentures and other directions, can solve problems such as poor internal density uniformity, and achieve the effects of high finished product density, high mechanical strength, and high material density

Inactive Publication Date: 2017-09-15
SHAOXING HUAJING SCI TECH
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, "dry pressing molding" is to use granulated materials to process ceramic blanks, and its internal density uniformity is poor. "Isostatic pressing molding" is also to use granulated materials to process ceramic blanks. Density uniformity can only be said to be better

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
  • Manufacturing method of zirconium oxide porcelain piece used for all-ceramic false tooth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] A method for making zirconia porcelain blocks for all-ceramic dentures according to the present invention comprises the following steps: firstly use zirconium-porcelain mixture as a raw material, and adopt an injection molding process to prepare zirconia porcelain block blanks for all-ceramic dentures, and then prepare all-ceramic dentures The blanks of zirconia ceramic blocks are sequentially passed through the wax discharge process, low-temperature pre-sintering process, mechanical processing process, and screen printing process, and finally inspected and packaged to form a finished product.

[0018] In this embodiment, the injection molding process is carried out using an injection molding machine, including injecting the zirconium-ceramic mixture into the mold cavity under high temperature and high pressure for molding, wherein the high temperature is 180°C ± 30°C, and the high pressure is 70Mpa ± 25Mpa .

[0019] combine figure 1 As shown, the specific process of ...

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

No PUM Login to view more

Abstract

The invention discloses a manufacturing method of a zirconium oxide porcelain piece used for an all-ceramic false tooth and belongs to the field of all-ceramic false tooth materials used for lost teeth repair. The manufacturing method includes the following steps: 1) with a zirconium porcelain mixture material as a raw material, performing injection molding to obtain a green body of the zirconium oxide porcelain piece for all-ceramic false teeth; 2) performing dewaxing treatment, low-temperature pre-sintering, mechanical processing and silk-screen printing to the green body; and 3) inspecting and packaging the final product. The zirconium oxide porcelain piece used for all-ceramic false teeth has high internal homogeneity, high density and high breaking strength. An all-ceramic false tooth inner crown produced from the zirconium oxide porcelain piece has high mechanical strength and high density. The zirconium oxide porcelain piece used for the all-ceramic false teeth is designed through CAD/CAM and is processed to manufacture an all-ceramic false tooth inner crown green body which is then sintered, so as to reach strength and appearance effects required in clinical therapy.

Description

technical field [0001] The invention discloses a method for manufacturing a zirconia block for an all-ceramic denture, and belongs to the field of all-ceramic denture materials for restoring missing teeth. Background technique [0002] In the restoration of missing teeth, all-ceramic dentures are becoming more and more common. In the restoration of missing teeth, the strength and aesthetics of the denture are very important. [0003] In the prior art, the common manufacturing methods of zirconia blocks for all-ceramic dentures are "dry pressing forming" or "isostatic pressing forming". [0004] Ceramic forming is an important link in the preparation process of ceramic parts. The internal uniformity and density of the formed ceramic blank are directly related to the quality of the final sintered ceramic part. Since the defects caused by the molding process are often the main dangerous defects of ceramic products, the objective requirements for controlling and eliminat...

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 Applications(China)
IPC IPC(8): C04B35/48C04B35/622A61C13/083
CPCA61C13/083C04B35/48C04B35/622C04B2235/3217C04B2235/3225C04B2235/3244C04B2235/3272C04B2235/6022C04B2235/612C04B2235/656C04B2235/6562C04B2235/6567C04B2235/94
Inventor 刘光荣朱爱萍朱曰春
Owner SHAOXING HUAJING SCI TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap