Method for preparing large-density foam glass

A foam glass and high-density technology is applied in the field of preparation of high-density foam glass, which can solve the problems of unfavorable shock waves and small pore size of foam glass, and achieve the effect of improving mechanical properties.

Inactive Publication Date: 2010-01-27
SHAANXI UNIV OF SCI & TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pore size of the foam glass prepared by this method is small, which is not good for fully absorbing shock waves

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

[0016] Embodiment 1: at first the density is greater than 3.0g / cm 3 The cullet glass is cleaned, dried and ball milled into a powder below 200 mesh; then 95% of the cullet powder and 5% SiC are put into a ball mill jar according to the mass fraction and ball milled to below 200 mesh; The batch material with a diameter of 200 mesh is added to the heat-resistant steel mold, and finally the mold is moved into the tunnel kiln, roller kiln or pusher kiln and fired according to the following steps; , after holding for 20 minutes; then heating up to 820°C at a heating rate of 20°C / min and then holding for 30 minutes; in the rapid cooling stage, the cooling rate was 25°C / min, cooled to 500°C, and the constant temperature time was 30 minutes; in the annealing stage, the cooling rate was 1 ℃ / min, annealing to below 50℃ to obtain foam glass. The formed foam glass has a uniform structure, an average cell diameter of 1.5 mm, and a density of 1.8 g cm -3 , the flexural strength reaches 1....

Embodiment 2

[0017] Embodiment 2: at first the density is greater than 3.0g / cm 3 The cullet glass is cleaned, dried and ball milled into a powder below 200 mesh; then 97% of the cullet powder and 3% TiN are put into a ball mill pot and ball milled to below 200 mesh according to the mass fraction; Add the batch materials with a diameter of 200 meshes into the heat-resistant steel mold, and finally move the mold into a tunnel kiln, roller kiln or pusher kiln for firing according to the following steps; from room temperature to 400°C at a heating rate of 11°C / min , after holding for 28 minutes; then heating up to 840°C at a heating rate of 18°C / min and then holding for 40 minutes; in the rapid cooling stage, the cooling rate was 20°C / min, cooled to 550°C, and the constant temperature time was 40 minutes; in the annealing stage, the cooling rate was 1.5 ℃ / min, annealing to below 50℃ to obtain foam glass. The formed foam glass has a uniform structure and a density of 1.9 g cm -3 , the average...

Embodiment 3

[0018] Embodiment 3: at first the density is greater than 3.0g / cm 3 The cullet glass is cleaned, dried and ball milled into a powder below 200 mesh; then 96% of the cullet powder and 4% SiC are put into a ball mill jar according to the mass fraction and ball milled to below 200 mesh; Add the batch materials with a diameter of 200 meshes into the heat-resistant steel mold, and finally move the mold into the tunnel kiln, roller kiln or pusher kiln for firing according to the following steps; after heating from room temperature to 400°C at a heating rate of 12°C / min , after holding for 25 minutes; then heating up to 800°C at a heating rate of 15°C / min and then holding for 50 minutes; in the rapid cooling stage, the cooling rate was 18°C / min, cooled to 500°C, and the constant temperature time was 50 minutes; in the annealing stage, the cooling rate was 2 ℃ / min, annealing to below 50℃ to obtain foam glass. The formed foam glass has a uniform structure and a density of 2.1 g 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
densityaaaaaaaaaa
densityaaaaaaaaaa
densityaaaaaaaaaa
Login to view more

Abstract

A preparation method of foam glass with large density is provided. Firstly, cullet powder, of which the density is larger than 3.0g / cm<3>, SiC and TiN are put in a ball milling tank for 200 orders below and are added in a heat-resistant steel die. At last, the die is moved into a foam oven for the sintering. The foam glass is obtained through the foaming, the fast cooling and the annealing. The invention uses various cullets as raw materials, the densities of which are larger than 3.0g / cm<3> and SiC or TiN as a foaming agent. The foaming agent SiC or TiN is helpful for the crystal generation of the foam glass in the preparation process and is beneficial to the improvement of the mechanical property of foam glass bricks. Therefore, the foam glass with large density can absorb the shock wave energy during the explosion. The foam glass can be combined with cement, steel or other building materials with high strength and is used in the inner and the external facades of important surfaces of buildings in high risk areas. And the invention has the advantage of rigid structure. When facing shock waves, the bricks can absorb the main part of the explosion energy.

Description

technical field [0001] The invention relates to a method for preparing foam glass, in particular to a method for preparing high-density foam glass which can be used for the interior of building walls and exterior facades. Background technique [0002] In the past few decades, there have been many terrorist attacks on government buildings in some countries in the world. For example, in 1993, terrorists detonated a car bomb in the garage of the World Trade Center in New York City, causing loss of life and significant property damage. In 1995, extremists blew up a truck outside a federal building in Oklahoma City, causing significant loss of life and property. In 1998, the U.S. embassies in Nairobi and Dar es Salaam were also attacked by terrorist car bombs, causing heavy loss of life and property respectively. The 2002 disasters at the World Trade Center in New York City and the Pentagon in Virginia further underscored the urgent need to develop and manufacture building mate...

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): C03C11/00
Inventor 郭宏伟高淑雅王键陈云建刘新年赵彦钊高档妮王少龙
Owner SHAANXI UNIV OF 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