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Ceramic fiberboard and manufacturing technique

A ceramic fiberboard, production process technology, applied in fiberboard, textiles and papermaking, papermaking, etc., can solve the problems of low density, impact resistance, poor abrasion resistance, poor product strength, etc., to achieve high density and impact resistance Strong, good abrasion resistance

Inactive Publication Date: 2005-01-12
SINOMA SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This production method has low production efficiency
Its products have poor strength, low density, poor impact resistance and abrasion resistance.
Such a plate is easy to form punching gaps during punching and cutting, and it is difficult to ensure the accuracy of the punched product size, resulting in a large waste
Therefore, it cannot meet the requirements of high-precision, high-temperature-resistant, and friction-resistant industrial materials.

Method used

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  • Ceramic fiberboard and manufacturing technique

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Experimental program
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Effect test

Embodiment 1

[0022] Embodiment 1: (semi-continuous production method)

[0023] 1) Amorphous ceramic fibers with a diameter of 2-3 μm and a length of 20-80 mm are selected, and a ceramic fiber paper with a thickness of 0.4 mm and a width of 600 mm is produced by a wet continuous molding process.

[0024] 2) Cut the rolled ceramic fiber paper into a size and shape of 500mm×500mm for later use.

[0025] Acrylate emulsion 1000ml, polyacrylamide (molecular weight: 5 million) 3% aqueous solution 200ml, high alumina cement (CA-50) 1kg, kaolin 500g, talcum powder (325 mesh) 100g, wollastonite (400 mesh) 200g Stir vigorously and mix evenly for 4 to 5 minutes to form a paste-like binder and filler mixture for later use.

[0026] To produce a ceramic fiber board with a thickness of about 3.2mm: first spread a piece of ceramic fiber paper with a thickness of 0.4mm and 500mm×500mm, and evenly brush a layer of the above-mentioned paste binder material (150ml, thickness about 1.3mm), and cover the secon...

Embodiment 2

[0030] Embodiment 2: (continuous production method)

[0031] The specific operation process is as follows:

[0032] 1) Using amorphous ceramic fibers with a diameter of 2-3 μm and a length of 20-80 mm, a ceramic fiber paper with a thickness of 0.4 mm and a width of 600 mm is produced by a wet continuous molding process.

[0033] 2) Spray an acrylate emulsion adhesive with a solid content of 2-3% on the wet paper, and suck off part of the adhesive through a negative pressure of 0.01-0.02 MPa; at a distance of 30-50 cm from the applied adhesive, A linear feeder is used to evenly apply the powdery filler mixture (500g of high alumina cement, 300g of alumina, 200g of pyrophyllite powder, 100g of mica powder, and 150g of clay), and the filler applied per square meter is controlled between 70-150g. The filled ceramic fiber paper enters the drying oven.

[0034] 3) The temperature of the drying oven is controlled at 40-60°C, and the drying time is 3-5 minutes. At this time, the ad...

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Abstract

This invention is how to produce the pottery fibreboard and its technology. They made of pressed poly layer pottery fibreboard. In the middle of two layers has some binders, to keep thickness of binders 0.5-3mm. There are two methods to produce them. The one is semi-continued production: every pottery fibro board which are according to continuously produced after cut, pressed, and in the middle between them there are binders and fillers, then pressed them under the press machine 10-20 minutes, and heated them into oven to stove keep 40-60deg.C them make it up. The other method is continuous production; after the pottery fibreboard is formed put binder milk solution spread on the wet paper. Then add the power filler put the wet paper into oven to stove 40-60deg.C till it semidry rounded them by machine, pressed, till whole dry, then the pottery fibreboard is finished.

Description

technical field [0001] A ceramic fiberboard and a production process thereof belong to the technical field of high-temperature-resistant fiberboards, and in particular relate to ceramic fiberboard technology. Background technique [0002] Ceramic fiber is a kind of aluminum silicate fiber, which belongs to the category of refractory fiber. Its main component is alumina (Al 2 o 3 ) and silicon dioxide (SiO 2 ). According to the microstructure, ceramic fibers are divided into two categories: amorphous ceramic fibers and crystalline ceramic fibers. According to the temperature resistance level, from low to high, they are: ordinary aluminum silicate fiber, high aluminum silicate fiber, chromium (Cr 2 o 3 ) aluminum silicate fiber, containing zirconium (ZrO 2 ) aluminum silicate fiber, polycrystalline mullite fiber and polycrystalline alumina fiber, etc. The long-term use temperature of ceramic fibers is generally above 1000 °C. It not only has the excellent thermal insul...

Claims

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Application Information

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IPC IPC(8): D21H27/32D21J1/00
Inventor 王志明
Owner SINOMA SCI & TECH
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