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Method for preparing fluorine phosphorus composite opacifying glass

A technology of compound emulsion and fluorine phosphorus is applied in the field of preparation of high-grade compound opaque glass decorative materials, which can solve the problems of changes in the degree of opacity, rapid grain growth, and difficulty in control, and achieves improved surface quality, short melting time, The effect of reducing energy consumption

Inactive Publication Date: 2008-08-06
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the production process of fluoride opacified glass, there are problems such as fast grain growth and difficult control, and the volatilization of fluoride often causes changes in the degree of opacity during the glass melting process, resulting in environmental pollution.
Another kind of phosphate opacified glass has the advantages of easy control of grain growth and large adjustable range of opacity, and can be used to prepare opacified glasses with different degrees of opacity; however, it needs heat treatment to be opacified

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1, a kind of preparation method of fluorophosphorus composite opacity glass, carries out following steps successively:

[0020] 1) Preparation of raw materials:

[0021] SiO 2 61 copies, B 2 o 3 2.5 parts, Al 2 o 3 5.0 parts, CaO 10.7 parts, MgO 1.3 parts, ZnO 2.0 parts, Na 2 O7.8 copies, P 2 o 5 7.4 parts, Na 2 SiF 6 1.3 parts and CaNO 3 1 part is uniformly mixed to form a raw material, and the above parts are parts by weight.

[0022] 2) Put the above raw materials into a glass melting furnace, melt, clarify and crystallize at 1300°C-1480°C, then extrude or draw into shape; then anneal, cool to room temperature, and then polish and cut , that is, fluorine-phosphorus composite opacity glass; this glass is light opacity glass similar to natural opal.

Embodiment 2

[0023] Embodiment 2, a kind of preparation method of fluorophosphorus composite opacity glass, carries out following steps successively:

[0024] 1) Preparation of raw materials:

[0025] SiO 2 56.5 copies, B 2 o 3 1.5 parts, Al 2 o 3 4.0 parts, CaO 17.5 parts, MgO 4.0 parts, ZnO 0.5 parts, Na 2 O6.5 copies, P 2 o 5 6.5 parts, Na 2 SiF 6 2.0 parts and CaNO 3 1 part is uniformly mixed to form a raw material, and the above parts are parts by weight.

[0026] 2) Put the above raw materials into a glass melting furnace, melt, clarify and crystallize at 1300°C-1400°C, then extrude or draw into shape; then anneal, cool to room temperature, and then polish and cut , that is, fluorine-phosphorus composite opacified glass; this glass is medium opacified glass. There is almost no volatilization of fluoride in this opaque glass, and the opacity is good.

Embodiment 3

[0027] Embodiment 3, a kind of preparation method of fluorophosphorus composite opacity glass, carries out following steps successively:

[0028] 1) Preparation of raw materials:

[0029] SiO 2 58.0 copies, B 2 o 3 4.5 parts, Al 2 o 3 3.0 parts, CaO1 4.9 parts, MgO 0.8 parts, ZnO 1.3 parts, Na 2 O 10.0 parts, P 2 o 5 5.0 parts, Na 2 SiF 6 1.5 parts and CaNO 3 1 part is uniformly mixed to form a raw material, and the above parts are parts by weight.

[0030] 2) Put the above raw materials into a glass melting furnace, melt, clarify and crystallize at 1300°C-1400°C, then extrude or draw into shape; then anneal, cool to room temperature, and then polish and cut , that is, fluorine-phosphorus composite opacified glass; this glass has high thermal stability, and can be used to make heat-resistant tableware, lighting lampshades, etc.

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Abstract

The invention discloses a method for preparing a fluorophosphate composite opaque glass, which comprises the following steps: 1) raw material preparation: 50 to 65 portions of silica, 0.5 to 6.5 portions boron oxide, 2 to 5 portions alumina, 10 to 17.5 portions calcium oxide, 0.5 to 6 portions of magnesium oxide, 0.5 to 2 portions of zinc oxide, 5 to 10 portions of sodium oxide, 5 to 8 portions of phosphorus pentoxide, 0.5 to 2 portions of sodium fluosilicate and 1 portion of calcium nitrate. The materials form the raw material after evenly mixing; 2) the raw material is melted under the temperature ranging from 1,300 DEG C to 1,480 DEG C and a clarification; the material then is extruded and pulled for shaping; an annealing is followed and the material is then cooled to a normal temperature. After a polishing and a cutting, the fluorophosphate composite opaque glass is obtained. The method for preparing the fluorophosphate composite opaque glass in the invention has the advantages of not only preventing the environment pollution by fluoride, but also saving energy.

Description

technical field [0001] The invention relates to a preparation method of a high-grade composite opal glass decoration material; in particular, a preparation method of a fluorine-phosphorus composite opaque glass. Background technique [0002] Opal glass refers to the glass containing a large number of highly dispersed particles. Because its refractive index is different from that of the main glass, it will scatter and become opaque when light is irradiated. As a new type of building decoration material, opalescent glass can not only overcome the poor wear resistance of glazed tiles, the polished vitrified tiles are easy to absorb dirt and have poor anti-fouling ability, the surface gloss of granite is not durable, high radioactivity, and the surface hardness of marble is low and acid-resistant. The disadvantages of traditional decorative materials such as poor alkalinity; and the appearance is beautiful and generous, durable, and it is a rare high-end decorative material. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/118
Inventor 郭兴忠张玲洁杨辉唐杰
Owner ZHEJIANG UNIV
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