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Cassettes for sintering ceramic concentric spheres

A technology of sintering ceramics and concentric spheres, which is applied in the field of handicraft manufacturing, and can solve problems such as easy cracking and deformation, easy deformation, and cracking

Inactive Publication Date: 2016-01-20
史祖法
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: The technical problem to be solved by this invention is to provide a box bowl design that is beneficial to the sintering of ceramic concentric spheres for the problem of easy cracking and deformation during sintering of ceramic concentric spheres
[0004] Technical solution: Aiming at the problem that ceramic concentric spheres are easy to deform and crack during high-temperature sintering, in addition to solving the problem of synchronous shrinkage of the isolation layer and the ceramic layer, it is also necessary to make the outer body of the ceramic concentric sphere body be affected when the volume changes during high-temperature sintering. Uniform force

Method used

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  • Cassettes for sintering ceramic concentric spheres
  • Cassettes for sintering ceramic concentric spheres
  • Cassettes for sintering ceramic concentric spheres

Examples

Experimental program
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Embodiment Construction

[0018] As shown in the figure, the present invention discloses a method for sintering ceramic concentric spheres using a V-shaped cross-section box bowl, including the following steps:

[0019] Step 1, according to the sintering shrinkage of ceramic concentric spheres, determine the proportion of organic matter powders such as sawdust to be added in the alumina fine powder;

[0020] Step 2: Design a V-shaped inverted cone-shaped box bowl according to the size of the ceramic concentric spheres. The apex angle of the inner cavity section of the box bowl is 60°, and the cone shape is conical or regular pyramid. smooth;

[0021] Step three, such as Figure 4 As shown, put the alumina fine powder 3 added with sawdust and other organic matter powders at the bottom of the V-shaped inverted conical box bowl 1, and carefully put the prepared ceramic concentric sphere body 2 on the alumina fine powder 3, Then add alumina fine powder 3 and fill the ceramic concentric ball body 2, and s...

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Abstract

The invention discloses a box pot for sintering a ceramic homocentric sphere, wherein the box pot is provided with a conical cavity with a V-shaped cross section. The box pot is characterized in that the cross section of the cavity of the box pot is in a V shape, the apex angle is 60 degrees, and the shape of the cone is a cone and a regular pyramid. In addition, organic powder such as saw dust is matched into alumina powder in the box pot to enable the alumina powder to shrink together when the ceramic homocentric sphere is sintered at the high temperature and enable the alumina powder to always tightly contact with the wall of the box pot, so that deformation and cracks caused by unbalanced force when the ceramic homocentric sphere is sintered at the high temperature are avoided.

Description

technical field [0001] The invention relates to the field of handicraft manufacturing, in particular to a box bowl design for ceramic concentric sphere sintering. Background technique [0002] The ceramic concentric ball green body is composed of multi-layer shell-shaped spherical ceramic layers and multi-layer shell-shaped spherical isolation layers alternately. After high-temperature firing, the powder-like isolation layer is removed, and each layer can move freely. ceramic concentric spheres. After the green body of the ceramic concentric balls has been made, how to keep the fired ceramic concentric balls from deforming and cracking has become a technical problem. The more layers, the thinner the layer thickness, and the larger the spherical shape, the easier it is to cause deformation and cracking during sintering. When there are many layers, because the gap between the layers is very small, there is a slight deformation, and the layers cannot move freely, so that the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D5/00
Inventor 史祖法
Owner 史祖法
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