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

Method of preparing high-strength wear-resisting glass ceramics by utilizing iron tailings

A technology for glass-ceramic and iron tailings, which is applied in the field of preparing high-strength and wear-resistant glass-ceramic by using iron tailings, can solve the problems of high cost, complicated process, reducing the density of glass-ceramic, mechanical properties and service performance, etc. The effect of reducing the cost of raw materials

Active Publication Date: 2014-06-18
ZHEJIANG UNIV
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve this problem, CMAS glass-ceramic is usually prepared by sintering method, but the disadvantage of sintering method is that the process is more complicated and the cost is higher, and the prepared glass-ceramic sample has surface pores, cracks, seesaws, etc. and other shortcomings, which to a certain extent reduce the density, mechanical properties and performance of glass-ceramics

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
  • Method of preparing high-strength wear-resisting glass ceramics by utilizing iron tailings
  • Method of preparing high-strength wear-resisting glass ceramics by utilizing iron tailings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1. A method for preparing high-strength wear-resistant glass-ceramic by using iron tailings, the following steps are carried out in sequence:

[0030] 1) Ingredients:

[0031] The raw material is composed of the following components by weight: 35 parts of iron tailings, 25 parts of quartz, 10 parts of magnesium carbonate, 15 parts of aluminum oxide, 3 parts of calcium oxide, 6 parts of titanium oxide, 5 parts of boron oxide and 1 part of antimony oxide.

[0032] 2) Mix the above raw materials by mechanical ball milling, and the ball milling time is 6 hours;

[0033] 3) Melting the mixed raw materials obtained in step 2) at 1450-1500°C for 4 hours;

[0034] 4) Press or calender the molten glass to prepare plate glass (length, width and thickness are 100mm, 40mm and 5mm respectively);

[0035] 5) Send the above plate glass to an annealing furnace for annealing, the annealing temperature is 580°C, anneal for 1 hour and then cool with the furnace; annealed glas...

Embodiment 2

[0038] Embodiment 2, a kind of method utilizing iron tailings to prepare high-strength wear-resistant glass ceramics,

[0039] The ingredients are:

[0040] The raw material is composed of the following components by weight: 40 parts of iron tailings, 20 parts of quartz, 12 parts of magnesium carbonate, 13 parts of aluminum oxide, 4 parts of calcium oxide, 7 parts of titanium oxide, 3 parts of boron oxide and 1 part of antimony oxide.

[0041] The preparation method is the same as in Example 1.

[0042] The main crystal phase of the prepared glass-ceramic product is hexagonal cordierite, the grain size is about 10 microns, the overall crystallization, black appearance, good gloss, Vickers hardness ≥ 8.2GPa, flexural strength ≥ 125MPa .

Embodiment 3

[0043] Example 3: A method for preparing high-strength wear-resistant glass-ceramic by using iron tailings,

[0044] The ingredients are:

[0045] The raw material is composed of the following components by weight: 37 parts of iron tailings, 23 parts of quartz, 11 parts of magnesium carbonate, 14 parts of aluminum oxide, 4 parts of calcium oxide, 6 parts of titanium oxide, 4 parts of boron oxide and 1 part of antimony oxide.

[0046] The preparation method is the same as in Example 1.

[0047] The main crystal phase of the prepared glass-ceramic product is cordierite in the hexagonal crystal phase, the grain size is about 10 microns, the overall crystallization, black appearance, good gloss, Vickers hardness ≥ 8.8GPa, flexural strength ≥ 134MPa .

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
Vickers hardnessaaaaaaaaaa
flexural strengthaaaaaaaaaa
Vickers hardnessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method of preparing high-strength wear-resisting glass ceramics by utilizing iron tailings. The method comprises the following steps of preparing raw materials comprising the following components in parts by weight: 35-40 parts of iron tailings, 20-25 parts of quartz, 10-12 parts of magnesium carbonate, 13-15 parts of aluminum oxide, 3-4 parts of calcium oxide, 6-7 parts of titanium oxide, 3-5 parts of boron oxide and 1 part of antimony oxide; mixing the materials, fusing the materials at 1450 DEG C-1500 DEG C, preserving the heat, carrying out compression molding or calendaring molding on the obtained molten glass, annealing plate-shaped glass and then preserving the heat for 3-5 hours at 950 DEG C-1000 DEG C, and cooling to the room temperature to obtain the high-strength wear-resisting glass ceramics. The method is a preparation method of CMAS glass ceramics, which takes iron tailings as main materials and realizes integral crystallization.

Description

technical field [0001] The invention relates to a method for preparing high-strength wear-resistant glass-ceramics, in particular to a method for preparing high-strength wear-resistant glass-ceramics by using iron tailings. Background technique [0002] my country's iron tailings produce hundreds of millions of tons every year, polluting the environment and causing huge pressure on the society. It not only takes up a lot of arable land, but also the dried tailings, fly ash, etc. form dust in strong winds. The overdue or overloaded use of tailings ponds and red mud ponds, or even illegal operations, will bring great safety hazards and pose a serious threat to the property and life safety of people in surrounding areas. It is a problem that the country needs to solve urgently. There is an urgent need to solve the serious damage to the ecological environment caused by waste residues while realizing the maximum use of waste. [0003] CaO-MgO-Al 2 o 3 -SiO 2 (CMAS) glass-cera...

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): C03C10/08C03C6/10
Inventor 郭兴忠杨辉王长林温计格杨广跃
Owner ZHEJIANG 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