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Customized forming method for gradient porous structure ceramic

A technology of gradient porous and porous ceramics, applied in the direction of ceramic molding machines, ceramic products, manufacturing tools, etc., can solve the problems that it is difficult to meet the requirements of pore size and porosity, and the difficulty of controlling the connected structure and connected pore size, etc., to achieve low cost, The effect of high molding efficiency and simple process

Inactive Publication Date: 2008-03-26
XI AN JIAOTONG UNIV
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Problems solved by technology

The scaffold prepared by this method is difficult to control the connected structure and connected pore size between the spherical holes.
However, the currently proposed preparation of ceramic scaffolds with micropipe interconnected structures through micropipe resin negative molds is still difficult to meet the requirements for pore size and porosity in the process of tissue engineering assembly of different bone or chondrocytes and bone tissue defect repair.

Method used

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  • Customized forming method for gradient porous structure ceramic
  • Customized forming method for gradient porous structure ceramic

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Embodiment Construction

[0019] Referring to Fig. 1, according to the present invention, utilizing light-curing rapid prototyping and gel injection molding technology to manufacture a customized molding method with gradient porous structure ceramics, the specific steps include:

[0020] 1. 3D model design steps, according to actual requirements, use Pro / E software to establish a three-dimensional data model of a customized negative mold for ceramic parts, which has a negative structure of connected microtubes inside, as shown in Figure 2; The display model is stored as a data file that can be directly processed, such as an STL format file.

[0021] 2. Use the layering software that comes with the rapid prototyping machine to do layering processing, and import the processed data into the manufacturing program, and use the precision light curing molding machine to manufacture the negative resin mold for the bracket. The specific process parameters are: laser light source: solid-state laser (355nm wavele...

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Abstract

The present invention discloses the customized forming process of gradient porous structural ceramic. By means of the combined fast light solidifying and gel molding formation technology, porous ceramic product in spherical pore and micro tube combining structure and complicated profile may be obtained. The technological process of the present invention is simple and has low cost, high precision and high forming efficiency.

Description

technical field [0001] The invention relates to a new manufacturing process of a porous microstructure ceramic support with gradient changes, especially its appearance has a complex surface with customized requirements and high dimensional accuracy, and its interior has a porous structure formed by a mixture of spherical holes and microtubes. Microstructure, and has the characteristics of porosity and pore size gradient changes. Background technique [0002] The customized molding of porous structure is a difficult point in the manufacture of porous ceramics, and its parts have a wide range of applications and urgent needs in the fields of biomedicine, petrochemical, aerospace, national defense and military industries. Most of the current research focuses on the preparation of ceramic parts with a single pore size and porosity, but it cannot meet the needs of ceramic parts with variable pore size and porosity and complex customized shape and surface structure. For example, ...

Claims

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Application Information

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IPC IPC(8): C04B35/622C04B35/63C04B38/00B28B1/14
Inventor 李涤尘连芩李翔郭宏强靳忠民
Owner XI AN JIAOTONG UNIV
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