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A kind of preparation method of jade-like glass-ceramics

A technology of glass-ceramic and jade, applied in the field of preparation of jade-like glass-ceramic, can solve the problems of inhibiting the development of glass-ceramic industry, small utilization space of glass-ceramic, single color of glass-ceramic, etc., so as to improve chemical stability. and mechanical strength and hardness, improve thermal stability, promote melting and clarifying effect

Active Publication Date: 2015-09-23
LIAONING HONGSHAN JADE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current mature glass-ceramics production methods all have disadvantages such as single color tone and no texture; high surface porosity, poor durability; high brittleness, not easy to process and shape, etc., resulting in a small space for the use of glass-ceramics. The low market share has seriously inhibited the development of the glass-ceramic industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Choose 90% albite feldspar, 4% sodium carbonate, 4% boric acid, and 2% sodium nitrate (by weight percentage) as raw materials, and mix them to obtain the base material; melt the base material at 1620°C for 20 hours, and obtain glass liquid after clarification The glass liquid is made into precursor particles with a diameter of 1 mm, and the precursor particles are ball-milled into micropowders with a particle size of less than 200 meshes, and then the micropowders are made into slurry and then dried until the moisture content is 5.0% by weight, and then dried The dried slurry is pressed into a thin skin of 2 mm, and the thin skin is crushed into particles of 2 mesh to 200 mesh, and the particles are put into a mold; the mold is heated to 1100 °C for 8 hours, then kept for 1.5 hours, and cooled to room temperature. A jade-like glass-ceramic was obtained.

[0024] The bulk density of the jade-like glass-ceramics prepared in this embodiment is 2.45g / cm 3 , the flexural st...

Embodiment 2

[0026] Choose 35% of quartz sand, 50% of wax stone, 7.5% of sodium carbonate, 5% of boric acid, and 2.5% of sodium nitrate (by weight percentage) as raw materials, and mix them to obtain the base material; melt the base material at 1600°C for 24 hours, and clarify Finally, the molten glass is obtained; the molten glass is made into precursor particles with a diameter of 2mm, and the precursor particles are ball-milled into a micropowder with a particle size of less than 200 meshes, and then the micropowder is formulated into a slurry and then dried until the moisture content is 6.0% by weight , then press the dried slurry into a 2.5mm thin skin, crush the thin skin into 2-200 mesh granules, and put the granules into a mold; heat the mold for 8 hours to 1080°C and keep it warm for 2 hours, After cooling down to room temperature, jade-like glass-ceramic is obtained.

[0027] The bulk density of the jade-like glass-ceramic that present embodiment makes is 2.5g / cm 3 , the flexura...

Embodiment 3

[0029] Choose 35% of quartz sand, 55% of albite feldspar, 6% of alumina, 2% of boric acid, and 2% of sodium nitrate (by weight percentage) as raw materials, and obtain the base material after mixing; melt the base material at 1630°C for 18 hours, After clarification, the molten glass is obtained; the molten glass is made into precursor particles with a diameter of 0.5 mm; 5.0%, then press the dried slurry into a 3mm thin skin, crush the thin skin into 2-200 mesh particles, and put the particles into the mold; heat the mold for 1.5 hours after raising the temperature to 1100°C for 10 hours , cooling down to room temperature to produce jade-like glass-ceramics.

[0030] The bulk density of the jade-like glass-ceramic that present embodiment makes is 2.6g / cm 3 , the flexural strength is 60MPa, the compressive strength is 240MPa, the Mohs hardness is 7.0, and the impact toughness is 3.4kj / cm 3 , no radiation, with natural jade texture, translucent jade-like, with the moisture an...

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Abstract

The invention provides a preparation method of bowlder-like microcrystalline glass, which comprises the following steps: 1) weighing raw materials, and mixing to obtain a base material; 2) melting the base material obtained in the step 1) at 1600-1650 DEG C for 16-24 hours, and clarifying to obtain molten glass; 3) making the molten glass in the step 2) into micropowder with the particle size of less than 200 meshes, making the micropowder into 2-200-mesh particles, and putting into a mold; and 4) heating the mold filled with the particles to 1080-1120 DEG C within 8-10 hours, keeping the temperature for 1-2 hours, and cooling to room temperature to obtain the bowlder-like microcrystalline glass. The bowlder-like microcrystalline glass prepared by the method is like semitransparent bowlder, and has the gloss and waxy sensation of natural bowlder; and the bowlder-like microcrystalline glass has the advantages of favorable toughness and high strength, is easy to clean, can be cut and carved, and is applicable to indoor and outdoor decorations, manufacturing of artware, furniture and vessel, and the like.

Description

technical field [0001] The invention relates to the field of glass-ceramics, in particular to a method for preparing jade-like glass-ceramics. Background technique [0002] With the steady and continuous development of my country's national economy, people's living standards are improving, and the demand for high-grade building materials is increasing, especially the demand for alternative products of non-radiation high-grade stone is more urgent, but domestic high-grade stone substitute products are brittle. It is not easy to process and shape, so many high-grade stone materials need to be imported from abroad, and the cost is greatly increased. [0003] Glass-ceramics, also known as ceramic glass, has dual characteristics of glass and ceramics. Glass-ceramics is composed of crystals with regular atomic arrangements. Therefore, glass-ceramics has higher brightness than ceramics and stronger toughness than glass. Glass-ceramic combines the triple advantages of glass, ceramic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/00C03B32/02
Inventor 魏高恒高国良
Owner LIAONING HONGSHAN JADE TECH
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