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

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

Inactive Publication Date: 2005-07-06
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

[0022] Embodiment 1. Colored glass-ceramics

[0023] 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%;

[0024] 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;

[0025] 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;

[0026] Step 4: Drying at a temperature of 40-105°C;

[0027...

Embodiment 2

[0032] Embodiment 2. Light storage type glass-ceramics

[0033] 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%;

[0034] 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;

[0035] 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;

[0036] Step 4: Drying at a temperature of 40-105°...

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Abstract

The invention discloses a manufacturing method of composite fly ash architectural glass-ceramics, which belongs to the field of engineering material manufacturing, and in particular relates to a manufacturing method of composite fly ash architectural glass-ceramics. It is characterized in that: the nucleating agent β-CaO.SiO in the manufacturing process 2 Or microcrystalline kaolin can be added before the flux water quenching, or after the flux water quenching; the toughening agent is ZrO 2 or zircon ZrO 2 .SiO 2 ; Fly ash can contain SiO 2 and Al 2 o 3 The sandwich layer is filled with colored glass powder, inorganic pigments or light-storing luminescent materials; the bottom of the manufacturing furnace is provided with a 5-8° bottom slope; the basic glass in the sintering, the surface composite glass and the solid sandwich core layers are sintered simultaneously. The benefits and effects of the invention are high product strength, good durability, small surface defects, uniform color, multi-color products can be produced, and the production method is simple, low cost, easy to guarantee yield, and excellent decorative effect.

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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Patent Type & Authority Patents(China)
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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