Clinoenstatite microcrystalline glass prepared by talcum and process for same

A technology of oblique enstatite and glass-ceramics, which is applied in the field of oblique enstatite glass-ceramics and its technology, can solve the problems of inability to realize the production of special-shaped products, limit applications, and inability to obtain glass products, etc., and achieve easy automatic molding, The effect of wide application range and fast crystallization speed

Inactive Publication Date: 2012-06-27
WUHAN UNIV OF TECH +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

At present, the sintering process is mainly used for architectural decorative glass-ceramic plates, which cannot realize the production of special-shaped products. At the same time, crystal nucleating agents need to be added during the production process, and pure white glass products cannot be obtained, which limits the use of this material. application

Method used

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  • Clinoenstatite microcrystalline glass prepared by talcum and process for same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Quartz, talcum powder, clay, anhydrous sodium carbonate are pulverized, cross 45 mesh sieves, obtain powder, take by weighing 25 grams of quartz, 40 grams of talcum powder, 24.0 grams of clay, 20 grams of anhydrous sodium carbonate, put into mixing Mix in the feeder for 30 minutes.

[0026] Put the mixture into a 100ml corundum crucible, heat and melt it in a silicon-molybdenum electric furnace at a heating rate of 5°C / min, keep it at 1500°C for 3 hours, take out the crucible from the electric furnace, and melt the molten glass in the crucible Pour it on a preheated iron plate, hydraulically press the glass into a glass plate with the iron plate, quickly transfer the glass plate to a muffle furnace heated to 600°C in advance, anneal for 1 hour, and cool down with the furnace to obtain the basic glass.

[0027] After the glass plate is cooled, it is taken out and placed in a silicon carbide rod furnace for heat treatment, from room temperature to 980°C at a heating rate ...

Embodiment 2

[0032] Raw material type and raw material processing are the same as embodiment 1, take respectively by weighing 22 grams of quartz, 46 grams of talcum powder, 26 grams of clay, and 17 grams of anhydrous sodium carbonate. The raw material mixing procedure, melting system and annealing system are the same as in Example 1. The heat treatment system is as follows: from room temperature to 1000 ° C, the heating rate is 5 ° C / min, at 1000 ° C for 2.0 hours, and cooling with the furnace, the mineral phase composition of the glass-ceramics is obtained as cleropyne.

Embodiment 3

[0034] Raw material type and raw material processing are the same as embodiment 1, take by weighing 19 grams of quartz, 53 grams of talcum powder, 20 grams of clay, and 17 grams of anhydrous sodium carbonate. The raw material mixing procedure, melting system and annealing system are the same as in Example 1. The heat treatment system is as follows: from room temperature to 1000°C, the heating rate is 5°C / min, at 1000°C for 1.5h, and cooled with the furnace to obtain the mineral phase composition of glass-ceramics as clinopside.

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Abstract

The invention relates to clinoenstatite microcrystalline glass prepared by talcum and a process for the same, wherein the process comprises the following preparation steps of: 1) weighing raw materials containing talcum, quartz, clay and sodium carbonate; 2) uniformly mixing the raw materials, heating in a silicon-molybdenum electric furnace, taking out a crucible from the electric furnace, pouring the molten glass obtained in the crucible in a pre-heated mould to mould, and then transferring into a muffle furnace, insulating for 1-2 hours at 600 DEG C, and cooling with the furnace to obtain base glass; and 3) heating the base glass obtained in the step 2) in a silicon carbide rod electric furnace with a heating speed of 5-8 DEG C / min, insulating for 1-2 hours at 950-1000 DEG C according to the thickness of a test sample, and cooling with the furnace to obtain the microcrystalline glass. The clinoenstatite microcrystalline glass prepared by talcum and the process for the same disclosed by the invention have the following advantages that: 1) the used raw materials containing talcum, quartz and clay are raw mineral materials very rich in resource and low in price; 2) preparation process is simple; and 3) crystallization for glass has no need of additional nucleating agent, and crystallization velocity is fast.

Description

technical field [0001] The invention relates to an enstatite glass-ceramic prepared from talc and its technology. Background technique [0002] Glass-ceramic is a new type of inorganic material with many excellent properties. In the 1950s, Corning Corporation of the United States first successfully developed photosensitive glass-ceramics. In the mid-1960s, the former Soviet Union took the lead in using industrial slag as the main raw material, and made slag glass-ceramic plates by rolling production method. In 1967, Japan used andesite as a raw material to develop a black glass-ceramic decorative panel. In the early 1970s, the United States used rocks and other glass raw materials to produce architectural rock glass-ceramic decorative panels by using the molding method of flat glass. [0003] my country's research on glass-ceramics also mainly focuses on the application of various industrial waste residues in glass-ceramics and research on glass-ceramic plates. For exampl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/12
Inventor 冯小平施永义何峰张占波谢峻林索广宇赵奎奎
Owner WUHAN UNIV OF TECH
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