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

A kind of environment-friendly, low-shrinkage ceramics and preparation method thereof

A ceramic body and porcelain brick technology, which is applied in the production of ceramic materials, clay products, and other household appliances, etc., can solve the problems of large body shrinkage, increased costs, unfavorable body size control, etc., to reduce firing shrinkage , environmental strength, and performance-enhancing effect

Active Publication Date: 2022-05-06
MONALISA GRP CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But when too much is added, the green body will shrink greatly, which is not conducive to the control of the size and shape of the green body, and the later processing. Therefore, the size of the green body is often increased by enlarging the mold, and each pressed green body needs more More powder, and the increase in the purchase of molds and powder will increase the cost

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

preparation example Construction

[0026] The preparation method of the ceramic green body is not particularly limited, and can be prepared by methods known in the art, for example, the raw materials of the ceramic green body can be mixed and ball milled, granulated, and pressed to form a ceramic green body. The ball milling method may be wet ball milling or the like. The granulation method can be powder spraying granulation and the like. Iron removal and aging can be carried out before granulation. The pressing pressure can be 30000-70000KN.

[0027] The ceramic body can be fired to obtain ceramic tiles, and can also be post-processed on the ceramic body as required, such as pattern decoration, glazing, etc., and then fired to obtain ceramic tiles. The pattern decoration method is, for example, inkjet printing or the like. Before firing, the ceramic body can be dried first, for example, it can be dried at 200-250°C for 55-80 minutes. The highest firing temperature can be 1150-1180°C. The firing cycle can ...

Embodiment 1

[0037] Step 1: Proportioning and mixing of raw materials: according to the mass percentage of raw materials: ball clay 20%, medium temperature sand: 37%, high temperature sand: 19%, press filter residue 20%, calcined bauxite: 4%, and in the basic raw materials Add silicon carbide foaming agent: 0.005% on the basis of basic raw materials, add green body reinforcing agent: 0.2% on the basis of basic raw materials, and mix them uniformly by ball milling for 15 hours to obtain a mixture.

[0038] Step 2: stale and granulate: use spray drying, granulate and stale for 24 hours.

[0039] Step 3: Compression molding: compression molding by a press, and the compression pressure is 30000kN.

[0040] Step 4: Firing: After the body is inkjet printed and glazed, it is fired in a high-temperature roller kiln with a maximum firing temperature of 1160°C and a cycle of 63 minutes.

[0041] According to the national standard GB / T 3810 "Test Method for Ceramic Tiles", the water absorption rate ...

Embodiment 2

[0043] The difference from Example 1 is that the silicon carbide foaming agent is added in an amount of 0.01%.

[0044] According to the national standard GB / T 3810 "Test Method for Ceramic Tiles", the water absorption rate is 0.087%, the dry strength of the green body is 1.87MPa, the flexural strength reaches 48MPa, the shrinkage rate is 9.63%, and the appearance is smooth without warping, which is the same as that of Comparative Example 1. Ratio, the shrinkage rate is reduced by 1.21%, and it does not affect the drying and flexural strength of the green body. According to the drainage method test, the bulk density is 2.35g / cm 3 .

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
flexural strengthaaaaaaaaaa
flexural strengthaaaaaaaaaa
flexural strengthaaaaaaaaaa
Login to View More

Abstract

The invention provides an environment-friendly, low-shrinkage ceramic and a preparation method thereof. The raw materials of the ceramic body include basic raw materials and silicon carbide, and the silicon carbide is 0.005% to 0.01% of the mass of the basic raw materials. The present invention reduces the firing shrinkage of the green body without affecting the strength of the green body by adding a small amount of silicon carbide foaming agent.

Description

technical field [0001] The invention relates to low-shrinkage ceramics and a preparation method thereof, and belongs to the technical field of ceramic tile production and manufacture. Background technique [0002] The raw materials used in the body of ceramic wall and floor tiles include clay, feldspar and quartz raw materials. The raw materials are ball milled, granulated and pressed with a certain ratio, and fired at high temperature in a roller kiln to obtain low water absorption and High-strength ceramics. In response to the call for environmental protection, a high amount of waste slag is added to the formula to reduce the impact of waste slag on the environment and recycling of waste slag, and waste slag is a low-temperature material similar to feldspar. By substituting part of feldspar raw materials, production costs are reduced. But when too much is added, the green body will shrink greatly, which is not conducive to the control of the size and shape of the green bo...

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): C04B33/16C04B33/132C04B33/13C04B33/04C04B41/86
CPCC04B33/16C04B33/1324C04B33/13C04B33/04C04B41/86C04B41/5022C04B2235/96Y02P40/60
Inventor 萧礼标程科木王贤超杨元东汪庆刚
Owner MONALISA GRP CO LTD
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