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Method for making composite type nucleated glass from flyash used in building

A technology of glass-ceramic and manufacturing method, which is applied in the direction of building structure, construction, covering/lining, etc., can solve the problems of single color, large color difference, bursting, etc., and achieve the effect of uniform color, small color difference and low cost

Inactive Publication Date: 2003-08-06
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composite glass-ceramic is made by ZrO 2 The toughening agent, composite structure and composite manufacturing method solve the problems of single color of glass-ceramics in the past, large color difference during mass production, tiny pores (bubbles), rocker and bursting during production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1. Colored glass-ceramics

[0019] Step 1: Dosing according to the chemical composition of fly ash to meet (Ca, Mg)O-Al 2 o 3 -SiO 2 -Na 2 O system, and introduce nucleating agent and toughening agent, mix evenly, control the mixing particle size to 100-300 mesh, wherein the fly ash content is 25-50%, the CaO content is controlled at 12-16%, Al 2 o 3 Content control 12-18%;

[0020] Step 2: Send the mixture into the glass melting furnace for melting, clarification, and homogenization. The melting temperature is about 1450°C and the melting time is 2-4 hours. It requires a closed feeding port, a screw type or a plug type feeding machine, and a 5 -8° bottom slope, with a scum removal port on the surface and a scum discharge port at the bottom;

[0021] Step 3: The molten glass is quenched in water to form a 2mm-5mm water-quenched fly ash base glass, which requires a closed vertical flow port;

[0022] Step 4: Drying at a temperature of 40-105°C;

[0023...

Embodiment 2

[0028] Embodiment 2. Light storage type glass-ceramics

[0029] Step 1: According to the chemical composition of fly ash, the ingredients meet (Ca, Mg)O-Al 2 o 3 -SiO 2 -Na 2 O system, and introduce nucleating agent, toughening agent and activator, mix uniformly, control the mixing particle size to 100-300 mesh, its fly ash content is 25-50%, CaO content control 12-16%, Al 2 o 3 Content control 12-18%;

[0030] Step 2: Send the mixture into the glass melting furnace for melting, clarification, and homogenization. The melting temperature is about 1450°C and the melting time is 2-4 hours. It requires a closed feeding port, a screw type or a plug type feeding machine, and a 5 -8° bottom slope, with a scum removal port on the surface and a scum discharge port at the bottom;

[0031] Step 3: The molten glass is quenched in water to form a 2mm-5mm water-quenched fly ash base glass, which requires a closed vertical flow port;

[0032] Step 4: Drying at a temperature of 40-105°...

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PUM

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Abstract

The present invention relates to a method for making composite flyash building nucleated glass, and is characterized by that in the course of production the nucleating agent beta-CaO. SO2 or microcrystalline kaolin can be added before the flux is water-quenched, also can be added after the flux is water-quenched, the toughening agent is ZrO2 or ZrO2, the flyash can be substituted with industrial wastes and discards material containing SiO2 and Al2O3, and its sandwich layer is filled with colour glass powder, inorganic pigment or light-storing luminescent material, the bottom portion of the melting furnace is equipped with bottom slope with 5-8 deg. and in the course of sintering the base glass, surface layer composite glass and sandwich layer are simultaneously sintered.

Description

technical field [0001] The invention belongs to the field of engineering material manufacturing, and in particular relates to a method for manufacturing composite fly ash architectural glass-ceramics. Background technique [0002] Glass-ceramics are polycrystalline solids produced by the controlled crystallization of glass. The meaning of microcrystallization refers to nucleating the nucleating agent introduced into the glass through an appropriate treatment system and triggering crystal growth to form microcrystals. It has a wide range of applications in mechanical engineering, aerospace engineering, nuclear engineering, as well as food, medical and optical fields. For cost reasons, architectural glass-ceramics are mostly made of industrial waste. However, except for the micro-crystalline plates produced by blast furnace slag and copper tailings, which have been used in the construction field, others such as iron tailings, tungsten tailings, gold tailings, lithium The use...

Claims

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Application Information

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IPC IPC(8): B09B3/00C03B32/00C03B32/02C03C10/04E04F13/14
Inventor 王立久王廷哲
Owner DALIAN UNIV OF TECH
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