Microcrystalline jade and preparation method thereof

A technology of microcrystalline jade and auxiliary components, applied in the field of glass ceramics, can solve the problems of limited modeling range, high cost, poor processing performance such as cutting and engraving, and achieve excellent machinability and high yield

Inactive Publication Date: 2010-08-04
香港福山实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are mainly four types of artificial jade, which are: (1) Plastic artificial jade synthesized by resin and other fillers. This kind of jade is mainly composed of resin, curing agent and filler. Its color is natural and diverse, elegant and beautiful. , high toughness, but this kind of plastic jade has poor wear resistance, corrosion resistance and temperature resistance, and it is not anti-aging and lacks the texture of natural jade; (2) Air-hardening magnesia gelling material, this material is mainly Using magnesium oxide, magnesium chloride, glass fiber and other auxiliary materials as raw materials, it is made by mixing raw materials and air-hardening. Its surface is smooth, wear-resistant, hard as jade, low in cost, and simple in production technology. The quality of the material is unstable during use, and it is prone to warping and deformation, absorbing moisture and returning to halogen, and whitening, which seriously affects its

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

[0023] Crush various raw materials, pass through a 20-mesh sieve, and accurately weigh the following raw materials by weight: 40.7 parts of quartz sand, 15.3 parts of calcite, 5.9 parts of soda ash, 1.7 parts of table salt, 5.1 parts of potassium carbonate, 6.8 parts of fluorite, alumina 4.2 parts, 2.5 parts of spodumene, 6.8 parts of talc, 2.5 parts of zinc oxide, and 8.5 parts of borax. Mix the weighed raw material powder evenly to make a batch; put the batch into a melting kiln and melt it at 1520 °C 5.0h, make molten glass, and then heat it at 1350℃ for 1.5h to clarify the molten glass; the clarified molten glass is poured into the mold for molding; the formed glass plate enters the crystallization annealing furnace, crystallizes at 850℃ for 5h, and anneals at 600℃ 3h, cooling with the furnace to obtain a microcrystalline jade rough. After the microcrystalline jade blank comes out of the furnace, it is cut or carved, roughly ground and finely polished t...

Example Embodiment

[0024] Example 2

[0025] Crush various raw materials, then pass through a 20-mesh sieve, and accurately weigh the following raw materials by weight: 42.0 parts of quartz sand, 16.8 parts of calcite, 6.8 parts of soda ash, 16.8 parts of potassium feldspar, 5.0 parts of fluorite, and 5.0 parts of spodumene , 2.5 parts of zinc oxide, TiO 2 2.5 parts, 0.4 parts of sodium nitrate, 0.9 parts of boric acid, 0.9 parts of Glauber's salt, Fe 2 o 3 0.4 parts, the weighed raw material powder is uniformly mixed to make a batch; put the batch into a melting kiln, melt it at 1510°C for 4.0h to make a glass melt, and then keep it at 1320°C for 1.5h to clarify the glass; The clarified molten glass is molded by casting or calendering; the molded glass plate enters the crystallization annealing kiln, crystallizes at 825°C for 5.5 hours, and anneals at 600°C for 2.5 hours to obtain a microcrystalline jade blank. It is then cut or carved, roughly ground and finely polished to obtain the finish...

Example Embodiment

[0026] Example 3

[0027] Crush various raw materials, then pass through a 20-mesh sieve, and accurately weigh the following raw materials in parts by weight: 39.0 parts of quartz sand, 21.6 parts of calcite, 7.0 parts of soda ash, 6.1 parts of potassium carbonate, 6.7 parts of fluorite, 2.5 parts of aluminum oxide, phosphorus 4.3 parts of pyroxene, 8.6 parts of potassium feldspar, 2.2 parts of zinc oxide, 1.7 parts of boric acid, colorant Cr 2 o 3 0.3 parts, the weighed raw material powder is evenly mixed to make a batch; put the batch into a melting kiln, melt it in the range of 1480-1530°C for 4.0h to make a glass melt, and then keep it at 1350°C for 1.5h to clarify Glass liquid; clarified glass liquid is formed by casting or calendering; the formed glass plate enters the crystallization annealing kiln, crystallizes at 850°C for 6 hours, then anneals at 550°C for 2 hours, cools with the furnace, and the microcrystalline jade rough plate comes out of the furnace , and carr...

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PUM

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Abstract

The invention provides a microcrystalline jade and a preparation method thereof, wherein the microcrystalline jade comprises main components, auxiliary components and coloring agent, wherein the main components comprise SiO2, CaO, R2O, F<-> and Al2O3 and account for 80.0-95.0 percent of the total weight; the auxiliary components comprise ZnO, MgO, TiO2, B2O3, P2O5 and Cl<->, and account for 5.0-15.0 percent of the total weight; and the coloring agent accounts for 0-5.0 percent of the total weight. The preparation method of the microcrystalline jade comprises the following steps of: first, evenly mixing raw materials of the chemical composition of the microcrystalline jade; then, putting the raw materials into a high temperature smelting furnace to be molten into glass liquid, and molding the glass liquid into a basic glass plate or a special section block by a molding technique; and finally, carrying out crystallization or annealing heat treatment on the basic glass plate or the special section block, and forming the microcrystalline jade. The microcrystalline jade is in a semi-transparent wax-lipid shape, is fine and smooth in texture as well as crystal clear, can be widely used as a decorating plate, and can be also processed into artware, tableware or sanitary ware.

Description

technical field [0001] The invention relates to a microcrystalline jade and a preparation method thereof, belonging to the technical field of glass ceramics. Background technique [0002] With the gradual reduction of natural jade resources, artificial jade has attracted much attention. At present, there are mainly four types of artificial jade, which are: (1) Plastic artificial jade synthesized by resin and other fillers. This kind of jade is mainly composed of resin, curing agent and filler. Its color is natural and diverse, elegant and beautiful. , high toughness, but this kind of plastic jade has poor wear resistance, corrosion resistance and temperature resistance, and it is not anti-aging and lacks the texture of natural jade; (2) Air-hardening magnesia gelling material, this material is mainly Using magnesium oxide, magnesium chloride, glass fiber and other auxiliary materials as raw materials, it is made by mixing raw materials and air-hardening. Its surface is smoo...

Claims

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Application Information

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IPC IPC(8): C03C10/00C03C3/066
Inventor 梁开明曹建尉梁华巍梁力
Owner 香港福山实业有限公司
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