Method for preparing lightweight high-strength foam glass

A foam glass and high-strength technology is applied in the field of preparing lightweight and high-strength foam glass, which can solve the problems of complicated application procedures, high foaming temperature and high energy consumption, and achieve the effects of simple construction operation, simple preparation process and obvious economic benefits.

Inactive Publication Date: 2010-11-10
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The foam glass prepared by this method has small pore size and low flexural strength
CN200946127Y discloses a kind of foam glass with wire mesh, which solves the problem of low mechanical strength of foam glass, but still cannot solve the problem of light weight, and cannot produce large-for

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Example 1: 1) First, the waste flat glass is cleaned, and after drying, it is ball milled into powder with 270 mesh or more;

[0019] 2) Secondly, according to the mass fraction of 90% cullet powder, 1.5% SiC, 3.5% borax, 3% NaNO 3 , 2% of the mullite fiber with a diameter of 0.01~0.05mm and a length of 1~100mm is added to the ball milling tank and ball milled for 20 minutes to obtain the batch;

[0020] 3) Then, add the above-mentioned batch materials to the heat-resistant steel mold, compact the mold, and finally move the mold into the foaming furnace to fire according to the following process;

[0021] In the preheating stage, after heating from room temperature to 400°C at a heating rate of 15°C / min, keep it for 20 minutes;

[0022] In the foaming stage, the heating rate is 5℃ / min to 820℃;

[0023] In the foam-stabilizing stage, keep it at 820℃ for 30min

[0024] In the rapid cooling stage, the cooling rate is 20℃ / min, cooling to 500℃, and the constant temperature time is 30mi...

Example Embodiment

[0027] Example 2: 1) First, the glass bottles and jars are cleaned, and after drying, they are ball milled into powder with 270 mesh or more;

[0028] 2) Secondly, according to the mass fraction of 87% cullet powder, 1.5% SiC, 3.5% borax, 3% NaNO 3 5% of the high silica fiber with a diameter of 0.01~0.05mm and a length of 1~100mm is added to the ball mill tank and ball milled for 60 minutes to obtain the batch;

[0029] 3) Then, add the above-mentioned batch materials to the heat-resistant steel mold, compact the mold, and finally move the mold into the foaming furnace to fire according to the following process;

[0030] In the preheating stage, after heating from room temperature to 400°C at a heating rate of 10°C / min, keep it for 30 minutes;

[0031] In the foaming stage, the heating rate is 8℃ / min to 780℃;

[0032] In the foam-stabilizing stage, keep for 60 minutes at a constant temperature of 780℃;

[0033] In the rapid cooling stage, the cooling rate is 25℃ / min, cooling to 520℃, and...

Example Embodiment

[0036] Embodiment 3: 1) First, the electronic glass is cleaned, and after drying, it is ball milled into powder with 270 mesh or more;

[0037] 2) Secondly, according to the mass fraction of 93% cullet powder, 1% SiC, 2% borax, 2% NaNO 3 , 2% of SiC fibers with a diameter of 0.01~0.05mm and a length of 1~100mm are added to the ball milling tank and ball milled for 10 minutes to obtain the batch;

[0038] 3) Then, add the above-mentioned batch materials to the heat-resistant steel mold, compact the mold, and finally move the mold into the foaming furnace and fire according to the following process;

[0039] In the preheating stage, after heating from room temperature to 400°C at a heating rate of 20°C / min, keep it for 10 minutes;

[0040] In the foaming stage, the heating rate is 10℃ / min to 850℃;

[0041] In the foam-stabilizing stage, keep it at a constant temperature of 850°C for 10 minutes;

[0042] In the rapid cooling stage, the cooling rate is 23℃ / min, cooling to 540℃, and the const...

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Abstract

The invention relates to a method for preparing lightweight high-strength foam glass, which comprises the following steps of: firstly, cleaning cullet, drying the cleaned cullet, and performing ball milling to form powder; secondly, mixing the cullet powder, SiC, borax, NaNO3 and high-strength high-temperature resistance fibers to obtain a batch mixture; thirdly, adding the batch mixture into a heat resistant steel die, and performing compaction and die filling; and finally, transferring the die into a foaming furnace, and sintering in phases of preheating, foaming, foam stabilization, rapid cooling and annealing to obtain the foam glass. The method is favorable for utilizing waste and protecting environment, and the prepared foam glass has the advantages of low density, high strength, low conductivity factors, simple preparation process and simple and convenient construction and operation. Therefore, the method can protect environment effectively and turn waste into wealth, and the high-strength foam glass block can absorb explosion energy, and reduce the physical and property damage caused by collapse of wall construction materials due to terrorist attacks or natural disasters.

Description

technical field [0001] The invention relates to a method for preparing foam glass, in particular to a method for preparing lightweight high-strength foam glass through fiber reinforcement. It is used in the field of wall construction or military anti-riot, earthquake-proof and other construction environments. Background technique [0002] In the past few decades, there have been many natural disasters and man-made terrorist attacks around the world, causing tens of thousands of casualties and countless property losses. For example, the earthquake that occurred in Tangshan City, Hebei Province, my country on July 28, 1976 killed more than 240,000 people and injured 160,000 people. In 1993, terrorists detonated a car bomb in the garage of the World Trade Center in New York 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...

Claims

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Application Information

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IPC IPC(8): C03C11/00
CPCC03C11/007
Inventor 高淑雅郭晓琛
Owner SHAANXI UNIV OF SCI & TECH
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