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

Preparation method for isostatic pressure calcium-aluminum-silicon tin bath bottom brick

A tin bath bottom brick and isostatic pressing technology, applied in glass production and other directions, can solve the problems of increased porosity and risk of use, and achieve improved service life, good resistance to tin liquid penetration, and reduced glass defects. the effect of

Active Publication Date: 2013-08-14
ZIBO GT INDAL CERAMICS
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this brick is that the coarse particles and fine particles are combined by hydrates. After heat treatment at 1100°C, the calcium aluminate bonded phase still contains a small amount of bound water. During use at temperatures above 1100°C, the bound water will overflow. The porosity of the product will also increase, which will lead to risks in use

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
  • Preparation method for isostatic pressure calcium-aluminum-silicon tin bath bottom brick
  • Preparation method for isostatic pressure calcium-aluminum-silicon tin bath bottom brick
  • Preparation method for isostatic pressure calcium-aluminum-silicon tin bath bottom brick

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] The physical and chemical indicators of raw materials such as calcium aluminate particles, α-alumina powder, and siliceous compound powder are listed in Table 1 below. Add the raw materials into the mixer in proportion, mix them for 5-15 minutes, and wait at a pressure of 50-200Mpa. Static pressure compression molding, after the green body is naturally dried for 1-3 days, it is fired at 1300°C-1450°C to obtain samples of aluminum-calcium-siliceous tin bath bottom bricks, and its chemical composition, mineral phase composition, porosity, bulk density, and resistance to corrosion are tested. Physical and chemical indicators such as compressive strength and thermal conductivity are shown in Table 2 of specific examples.

[0027] Table 1 The mass chemical percentage composition table of raw materials

[0028]

[0029] Table 2, specific embodiment table

[0030]

[0031]

[0032] **MgO, Na in aluminum-calcium-siliceous tin bath bottom brick 2 Mineral components su...

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
porosityaaaaaaaaaa
Login to View More

Abstract

Disclosed are a tin bath bottom brick and a method for preparing the same, the tin bath bottom brick consisting, in weight percent, of: Al2O3 66%-80%, CaO 17%-28%, SiO2 1.5%-5%, and the balance being common mineral impurities. The method comprises: formulating, isostatic pressing and firing at a high temperature, the weight percentages for the formulation being 30%-45% of calcium aluminate coarse particles with a particle size of 3-1 mm, 20%-35% of calcium aluminate medium particles with a particle size of 1-0.1 mm, and 25-40% of fine binding powder with a particle size less than 0.088 mm. The product has a good corrosion resistance to alkali metal oxides, a low thermal expansion, a low thermal conductivity and a low hydrogen diffusion rate.

Description

technical field [0001] The invention relates to a tin bath bottom brick and a manufacturing method thereof, belonging to the technical field of refractory materials. technical background [0002] The tin bath is the key equipment of the float flat glass production line. The molten glass flows into the tin bath, floats on the tin bath, and forms smooth plate glass while advancing. The refractory brick used to store the tin bath is called the tin bath. Bottom brick. Most of the clay bricks currently used in the market are silica-alumina clay bricks. During their use, the Na2O contained in the glass slowly penetrates into the bricks through the tin liquid, forming nepheline and producing volume expansion and thermal stress. When the metamorphic layer containing nepheline increases to a certain thickness, the metamorphic layer will flake off in the form of flakes. Since its specific gravity is lower than that of tin liquid, when the peeled fragments float to the surface of tin ...

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): C04B35/66C04B35/44C04B35/622
CPCC04B35/622C04B35/66C04B35/44C03B18/16C04B2235/3201C04B2235/3206C04B2235/3208C04B2235/3232C04B2235/3272C04B2235/3418C04B2235/5427C04B2235/5436C04B2235/5463C04B2235/5472C04B2235/72C04B2235/725C04B2235/9669Y02P40/57
Inventor 张启山张瑛车建壮李志军孙文礼刘杰冯延春
Owner ZIBO GT INDAL CERAMICS
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