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Micropore hydrogenated aluminum porcelain tube and preparation thereof

A technology of alumina and alpha alumina, applied in the field of microporous alumina porcelain tube and its preparation, can solve the problems of high insulation and inability to meet high temperature resistance at the same time

Active Publication Date: 2009-04-22
温州市润基精密陶瓷件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] An object of the present invention is to provide a microporous alumina ceramic tube to solve the problem that the above-mentioned prior art cannot satisfy the four excellent properties of high temperature resistance, corrosion resistance, high insulation, and non-toxicity at the same time. It is made of the following raw materials: α-alumina: 88%-95%, Suzhou soil: 2%-4%, talcum powder: 2%-4%, calcium carbonate: 0.2%-2%, strontium carbonate: 0.1% —1.5%, silicon dioxide: 0.2%-1.5%

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] According to the following formula ratio: α-alumina 93%, Suzhou soil 2.5%, talcum powder 2.5%, calcium carbonate 0.5%, strontium carbonate 0.5%, silicon dioxide 1.0%, weigh the mineral raw materials and dry them (the temperature is about 80°C) After cooling, put it into a vibrating mill at a ball-to-material ratio of 5:1 and vibrate for 2 hours, then put the porcelain powder into a sealed container for later use.

[0032] Take the finely ground porcelain powder and heat it to 80°C, then add 13% paraffin wax into the mixing drum to melt and heat up to 100°C, add porcelain powder, and add 1.0% industrial oleic acid at the same time, stir quickly Evenly and release to make wax cakes for later use.

[0033] Melt the wax cake, control the temperature at 70°C by vacuum stirring, then pour the slurry into the barrel of the hot press injection machine, and press the different workpiece wax blanks according to the pre-made molds.

[0034] The wax body is bisque-fired at 1050°C ...

Embodiment 2

[0036] According to the following formula proportions: α-alumina 90%, Suzhou soil 3%, talcum powder 3.5%, calcium carbonate 1.5%, strontium carbonate 1.0%, silicon dioxide 1.0%

[0037] Weigh the mineral raw materials and dry them at 70°C. After cooling, add them to the vibrating mill at a ball-to-material ratio of 4:1. After vibrating for 4 hours, put the porcelain powder into a sealed container for later use;

[0038] Take the finely ground porcelain powder and heat it to 70°C, then take 11.5% paraffin wax into the mixing drum to melt and heat up to 100°C, add porcelain powder, and add 0.5% industrial oleic acid at the same time, stir quickly Uniform and released to make wax cakes for later use;

[0039] Melt the wax cake, control the temperature at 60°C by vacuum stirring, then pour the slurry into the barrel of the hot press injection machine, and press the different workpiece wax blanks according to the molds that have been prepared in advance;

[0040] The wax body is f...

Embodiment 3

[0044] According to the following formula proportions: α-alumina 93%, Suzhou soil 2.5%, talcum powder 3.0%, calcium carbonate 0.5%, strontium carbonate 1.0%

[0045] Weigh the mineral raw material and dry it at 90°C. After cooling, add it to the vibrating mill at a ball-to-material ratio of 5:1. After vibrating for 2 hours, put the porcelain powder into a sealed container for later use;

[0046] Take the finely ground porcelain powder and heat it to 90°C, then take 13% of the paraffin wax into the mixing drum to melt and heat up to about 100°C, add the porcelain powder, and add industrial oleic acid with a weight of about 1.0% at the same time, Stir quickly and release to make wax cakes for later use;

[0047] Melt the wax cake, control the temperature at 75°C by vacuum stirring, then pour the slurry into the barrel of the hot press injection machine, and press the different workpiece wax blanks according to the molds that have been prepared in advance;

[0048] The wax body ...

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Abstract

The invention relates to the field of an alumina ceramic pipe, in particular to a micropore alumina ceramic pipe and a method for preparing the same, and solves the problems that the prior art can not satisfy four good performances of high temperature resistance, corrosion resistance, high insulativity, and nontoxicity at the same time. The invention provides the micropore alumina ceramic pipe which is prepared from the following raw materials: 88 to 95 percent of alpha aluminum oxide, 2 to 4 percent of suzhou clay, 2 to 4 percent of talcum powder, 0.2 to 2 percent of calcium carbonate, 0.1 to 1.5 percent of strontium carbonate, and 0.2 to 1.5 percent of silicon dioxide. The method uses fluoride containing calcination alpha aluminum oxide powder together with five additives of the suzhou clay, the talcum powder, the calcium carbonate, the strontium carbonate, and the silicon dioxide which are mixed and ground evenly to prepare the micropore alumina ceramic pipe, so that the firing temperature of the ceramic piece is greatly reduced; and through exact formulation design, solid phase, liquid phase and gas phase are collocated reasonably, thus the prepared micropore ceramic piece not only has evenly distributed micropores and good mechanical strength, but also does not change the four good performances of the aluminum oxide.

Description

technical field [0001] The invention relates to the field of alumina porcelain tubes, and relates to a microporous alumina porcelain tube and a preparation method thereof. Background technique [0002] The invention is a high-temperature-resistant and corrosion-resistant microporous porcelain tube, which is mainly used in the adsorption of corrosive liquid and smoke in chemical detection instruments and sensors; in the adsorption of tar and harmful components in cigarette filters. [0003] Alumina porcelain has four excellent properties of high temperature resistance, corrosion resistance, high insulation, and non-toxicity. Due to the defects in the raw material formula, the existing microporous porcelain tubes are difficult to meet and have the above four properties at the same time. Contents of the invention [0004] An object of the present invention is to provide a microporous alumina ceramic tube to solve the problem that the above-mentioned prior art cannot satisfy t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/10C04B35/622
Inventor 李海峰
Owner 温州市润基精密陶瓷件有限公司
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