Method for preparing thin wall ceramic pipe and centrifugal formation machine

A technology for ceramic tubes and molding machines, applied in ceramic molding machines, manufacturing tools, etc., can solve the problems of heavy labor workload, low production yield, and low production efficiency, and achieve small labor workload, high production yield, and The effect of high production efficiency

Inactive Publication Date: 2004-03-24
SHANDONG RES & DESIGN ACADEMY OF IND CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inconvenient operation, long molding time, long production cycle, large labor workload, low production efficiency, low production yield, especially poor product quality

Method used

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  • Method for preparing thin wall ceramic pipe and centrifugal formation machine
  • Method for preparing thin wall ceramic pipe and centrifugal formation machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The preparation method of the thin-walled ceramic tube of the present invention includes batching, molding and firing. Taking the preparation of the alumina thin-walled ceramic tube as an example, the weight percentage of the batching fine powder is composed of:

[0053] Alumina powder 99%, magnesite powder 0.4%, diyttrium trioxide 0.6%.

[0054] Preparation of premixed liquid: a mixed liquid with a weight ratio of organic monomer acrylamide and N,N-methylene acrylamide of 100:50, and a mixed liquid with a weight ratio of distilled water of 1:40;

[0055] Dispersant: 30% ammonium polyacrylate solution;

[0056] Initiator: 6% ammonium persulfate solution;

[0057] Catalyst: N,N,N,N-Tetraethylenediamine;

[0058] PH value adjusting agent: ammonia water, hydrochloric acid, the PH value of adjustment control is 9.5.

[0059] The ingredients by weight consist of:

[0060] Ingredients fine powder 80%, premix 20%;

[0061] Based on the weight of the fine powder of the...

Embodiment 2

[0074] The preparation method of the thin-walled ceramic tube of the present invention includes batching, molding and firing. Taking the preparation of the alumina thin-walled ceramic tube as an example, the weight percentage of the batching fine powder is composed of:

[0075] 96% of alumina powder, 2% of zirconia powder, 1% of silica powder, 0.2% of magnesite powder, and 0.8% of diyttrium trioxide.

[0076] Preparation of premixed liquid: a mixed liquid with a weight ratio of organic monomer acrylamide and N, N-methylene acrylamide of 100:30, and a mixed liquid with a weight ratio of distilled water of 1:50;

[0077] Dispersant: 25% ammonium polyacrylate solution;

[0078] Initiator: 4% ammonium persulfate solution;

[0079] Catalyst: N,N,N,N-Tetraethylenediamine;

[0080] PH value adjusting agent: ammonia water, hydrochloric acid, the PH value of adjustment control is 9.

[0081] The ingredients by weight consist of:

[0082] Ingredients fine powder 65%, premix 35%;

...

Embodiment 3

[0088] The parameters involved in the preparation method of the thin-walled ceramic tube of the present invention are as follows, and the others are the same as in Example 1.

[0089] Taking the preparation of alumina thin-walled ceramic tubes as an example, the weight percentage of the fine powder of ingredients is composed of:

[0090] Aluminum oxide powder 85%, zirconia powder 12%, chromium oxide 2%, magnesium carbonate 1%.

[0091] Preparation of premixed liquid: a mixed liquid with a weight ratio of organic monomer acrylamide and N,N-methylene acrylamide of 100:60, and a mixed liquid with a weight ratio of distilled water of 1:30;

[0092] PH value adjusting agent: ammonia water, hydrochloric acid, the PH value of adjustment control is 8.5.

[0093] The ingredients by weight consist of:

[0094] Ingredients fine powder 82%, premix 18%;

[0095] Based on the weight of the fine powder of the ingredients, plus additives:

[0096] Dispersant 12%, initiator 0.2...

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Abstract

The present invention relates to a preparation method of thin-wall ceramic pipe and its centrifugal forming machine. Its preparation method includes the processes of blending raw material, forming and firing, and its forming process includes the following steps: adding prepared raw material fine powder into injection solidification moulding liquor to obtain suspension slurry material, injecting the suspension slurry material into material cylinder of centrifugal forming machine, making centrifugal forming process so as to obtain the invented product thin-wall ceramic pipe.

Description

technical field [0001] The invention relates to a preparation method and molding equipment of a thin-walled ceramic tube. Background technique [0002] The preparation of thin-walled ceramic tubes includes batching, molding and firing. Due to the thin wall, it is difficult to make, especially difficult to shape. The usual forming method is to prepare ceramic tubes with thicker walls by grouting first. , and then through green turning, firing and polishing to make ceramic tubes with required wall thickness. Inconvenient operation, long molding time, long production cycle, large labor workload, low production efficiency, low production yield, especially poor product quality. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a thin-walled ceramic tube preparation method with convenient operation, short production cycle, small labor workload, high production efficiency, high production yield and good product quality; ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B21/30
Inventor 唐竹兴王树海
Owner SHANDONG RES & DESIGN ACADEMY OF IND CERAMICS
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