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Technology for preparing nano microcrystalline enamels

A nano-microcrystalline and enamel technology, which is applied in the field of preparation of nano-microcrystalline enamel, can solve the problems of nanostructure research and application difficulties, and achieve good promotion and application prospects, improved ability, and improved acid and alkali corrosion resistance.

Inactive Publication Date: 2011-03-02
湖南立发釉彩新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for thick film materials such as bulk materials or enamel, the research and application of nanostructures are much more difficult.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1, a kind of preparation technique of nano-microcrystalline enamel, comprises the following process steps:

[0014] (1) High-temperature melting: After mixing various enamel raw material powders and chemical raw materials such as crystallization factors, they are sent into a high-temperature furnace and melted at 1300-1500 ° C to obtain a uniform enamel melt. After taking it out, it is quickly cooled. Homogeneous enamel frit is obtained; chemical raw materials such as various enamel raw material powders and crystallization factors are formulated according to the following mass ratios: quartz sand 30, borax 22, feldspar powder 20, soda ash 10, sodium fluorosilicate 8, silicic acid Zirconium 12, titanium dioxide 8, tricalcium phosphate 5, nickel oxide 3, aluminum fluoride 2;

[0015] (2) Preparation of enamel glaze slurry: the above-mentioned homogeneous enamel frit and grinding additives are batched according to the following mass ratio: enamel frit 92, kaolin...

Embodiment 2

[0017] Embodiment 2, a kind of preparation technique of nano-microcrystalline enamel, comprises the following process steps:

[0018] (1) High-temperature melting: After mixing various enamel raw material powders and chemical raw materials such as crystallization factors, they are sent into a high-temperature furnace and melted at 1300-1500 ° C to obtain a uniform enamel melt. After taking it out, it is quickly cooled. Homogeneous enamel frit is obtained; chemical raw materials such as various enamel raw material powders and crystallization factors are formulated according to the following mass ratios: quartz sand 28, borax 20, feldspar powder 25, soda ash 9, fluorite 10, zirconium silicate 10 , titanium dioxide 6, manganese oxide 3, nickel oxide 2, cobalt oxide 1;

[0019] (2) Preparation of enamel glaze slurry: mix the above-mentioned homogeneous enamel frit and grinding material according to the following mass ratio: enamel frit 92, kaolin 7, bentonite 1, after mixing, in a...

Embodiment 3

[0021] Embodiment 3, a kind of preparation technique of nano-microcrystalline enamel, comprises the following process steps:

[0022] (1) High-temperature melting: After mixing various enamel raw material powders and chemical raw materials such as crystallization factors, they are sent into a high-temperature furnace and melted at 1300-1500°C to obtain an enamel melt with a uniform composition. After taking it out, it is quickly cooled. Homogeneous enamel frit is obtained; chemical raw materials such as various enamel raw material powders and crystallization factors are formulated according to the following mass ratios: quartz sand 32, borax 25, feldspar powder 18, soda ash 10, sodium fluorosilicate 10, silicic acid Zirconium 8, aluminum dihydrogen phosphate 5, iron oxide 5, manganese oxide 3, chromium oxide 2;

[0023] (2) Preparation of enamel glaze slurry: mix the above-mentioned homogeneous enamel frit and grinding material according to the following mass ratio: enamel fri...

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Abstract

The invention provides a technology for preparing nano microcrystalline enamels, which comprises the following technical steps: melting at high temperature, preparing enamel powders or glaze slurry, and firing the enamels and carrying out in-situ crystallization; and based on common porcelain enamels, introducing a devitrification factor during the preparation of enamel frits by scientific and reasonable composition design so as to the porcelain enamel has the capacity of even and fast devitrification at appropriate temperature. Because the melt and other processing properties for the enamels are slightly influenced, the enamel firing technology system is slightly modified, thus being capable of obviously improving the capacities of the enamels in acid-base resistance, corrosion resistance and hot water erosion resistance. For the nano microcrystalline enamels prepared by the technology which can produce nano microcrystals in situ in a porcelain enamel layer, the acid-base resistance and the corrosion resistance can be more than double and the hot water erosion resistance can be improved by about five folds. The enamels in the invention can be used as lining materials of chemical reaction vessels and liner materials of water heaters and has preferably popularization and application prospects.

Description

technical field [0001] The invention relates to a preparation technology of nano microcrystalline enamel. Background technique [0002] Under the background that traditional daily-use enamel products are mostly replaced by stainless steel products and plastic products, enamel, as an excellent corrosion-resistant material, is increasingly favored by industrial fields such as chemical industry and household appliances. Enamel is used as the lining of chemical containers and household appliance industries such as The liner of electric water heater has obtained more and more extensive application. Therefore, corresponding to this, the ability of enamel to resist acid and alkali corrosion and hot water erosion has become the key to improving the overall performance of enamel and prolonging the service life of equipment. [0003] In the past ten years, countries all over the world are vigorously developing the preparation and application technology of nanomaterials. Some ceramic ...

Claims

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Application Information

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IPC IPC(8): C04B41/86
Inventor 梁梦林陈安明肖汉宁
Owner 湖南立发釉彩新材料有限公司
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