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Method for solving cracking problem during sintering of ceramic concentric spheres

A technology of ceramic concentric balls and sintering method, applied in the field of handicraft manufacturing, can solve the problems of easy cracking of concentric balls when sintered

Inactive Publication Date: 2014-04-23
史祖法
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Purpose of the invention: The technical problem to be solved by the present invention is to provide a method for solving the cracking of ceramic concentric spheres when sintering ceramic concentric spheres.

Method used

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  • Method for solving cracking problem during sintering of ceramic concentric spheres
  • Method for solving cracking problem during sintering of ceramic concentric spheres

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Embodiment Construction

[0015] As shown in the figure, the present invention discloses a method for sintering ceramic concentric spheres, comprising the following steps:

[0016] Step 1, measuring the shrinkage rate of the blank used to make the ceramic concentric sphere after sintering;

[0017] Step 2, according to the sintering shrinkage rate of the measured ceramic blank, test to determine the proportion of various materials of the isolation layer, these materials include high temperature resistant materials such as alumina fine powder, sawdust or other organic material powder, adhesive, water or other solvents;

[0018] Step 3, prepare the isolation layer material according to the proportion and fully mix and knead it to make it a plastic blank like a ceramic green body;

[0019] Step 4, use the isolation layer blank made in the previous step for the production of ceramic concentric spheres: after the hollowed out carving is completed on each layer of the ceramic concentric sphere 1 as shown in...

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Abstract

The invention discloses a method for solving the cracking problem during sintering of ceramic concentric spheres. The method is characterized in that: in order to keep synchronous contraction of a separating layer of the ceramic concentric spheres and a ceramic layer during the process of high-temperature sintering, powdered organic matters such as sawdust and the like which can be burned off and volatilize at high temperature are introduced into the high-temperature resistant material of the separating layer in proportion such that the introduced part of the powdered organic matters are burned off and volatilize during the high-temperature sintering process of the ceramic concentric spheres so as to lead to volume contraction of the separating layer at high temperature, and the contraction rate of the separating layer is basically consistent with that of the ceramic layer contracted during sintering process so as to avoid cracking of the ceramic concentric spheres because the ceramic layer contracts instead of the separating layer during the high-temperature sintering process.

Description

technical field [0001] The invention relates to the field of handicraft manufacturing, in particular to a method for solving the sintering cracking of ceramic concentric spheres. Background technique [0002] Traditional concentric spheres are generally made of ivory and other materials. The production of this kind of concentric sphere must be carved inward layer by layer with the method of hollow carving, and each layer is separated into a shell-shaped spherical surface, so that each layer can move. The more layers, the more difficult it is, and the higher the hardness of the material. , the greater the brittleness, the more difficult it is to process. Materials such as ceramics cannot be processed into concentric spheres by the above method. The ceramic material has good plasticity when it is green. Using the plasticity and ease of processing of the raw material of the ceramic green body, it is easier to realize the processing of concentric spheres by layer-by-layer proce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/622
Inventor 史祖法
Owner 史祖法
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