Preparation method of crystallite glass

A technology of glass-ceramic and float glass, applied in the field of preparation of glass-ceramic, can solve the problems of environmental damage, pollution, waste of manpower, material resources, financial resources, etc., to solve the pollution problem, reduce the production cost, and have a high product yield. Effect

Inactive Publication Date: 2006-07-26
GUILIN DIHUA SPECIAL GLASS
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Problems solved by technology

In the grinding process, it is generally necessary to use abrasive sand, and use human or mechanical force for a long time to process carefully to meet the requirements. During the use of abrasive sand, a large amoun

Method used

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Embodiment Construction

[0027] Below in conjunction with embodiment, content of the present invention is described further:

[0028] One, the preparation of glass-ceramic basic material: make the weight content be silicon dioxide (SiO2 2 )66.6%, alumina (AL 2 o 3 )18.3%, boron oxide (B2O 8 ) 1.18%, magnesium oxide (MgO) 1.3%, calcium oxide (CaO) 0.5%, zinc oxide (ZnO) 1.58%, lithium oxide (Li 2 O) 3.5%, zirconia (ZrO 2 ) 1.6%, titanium oxide (TiO 2 )2.5%, phosphorus oxide (P 2 o 5 ) 0.5% raw materials with a fineness of 0.1mm, and a small amount of colorant V 2 o 5 , MnO 2 , NiO, Co 2 o 3 , clarifying agent As 2 o3 , Sb 2 o 3 After mixing, the furnace melts it at a high temperature of 1590°C to form a glass solution.

[0029] 2. Float glass forming: it is completed in a tin bath filled with protective gas (N2 and H2). The molten glass flows continuously from the tank furnace and floats on the surface of the tin liquid with high relative density. Under the action of gravity and surface...

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Abstract

The invention relates to a preparation method for the microcrystal glass, which comprises: 1) preparing material; 2) fusing the glass; 3) forming with float-glass method; 4) crystallized treating with gradient temperature. This invention reduces cost, and has high yield without grinding process or pollution to environment.

Description

technical field [0001] The invention relates to a preparation method of glass-ceramic. technical background [0002] Glass-ceramic is a specific composition glass with high chemical composition and melting requirements. After heat treatment at a certain temperature, it becomes a composite material with uniform distribution of microcrystals and glass phases, also known as ceramic glass. It has many valuable properties such as low expansion coefficient, high mechanical strength, good chemical stability and thermal stability, high service temperature and hard wear resistance. Because the glass composition can be adjusted in a wide range, and the precipitated crystal phase is fine and evenly distributed, the glass-ceramic material has many superior properties that cannot be replaced by other materials. Compared with quartz glass, glass-ceramics has better air tightness due to the precipitation of fine and uniform crystallites, and thus obtains high mechanical strength. At the s...

Claims

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Application Information

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IPC IPC(8): C03B32/02C03B18/00
Inventor 李海华
Owner GUILIN DIHUA SPECIAL GLASS
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