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Three-dimensional object producing method, three-dimensional object producing apparatus, and three-dimensional object

A technology for three-dimensional objects and manufacturing methods, which is applied in processing and manufacturing, manufacturing tools, manufacturing auxiliary devices, etc., and can solve the problems of difficult to obtain high-precision, high-density ceramic sintered bodies.

Pending Publication Date: 2022-02-18
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to obtain a high-precision, high-density ceramic sintered body even when an object is manufactured using the resin powder described in Japanese Patent No. 6520182

Method used

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  • Three-dimensional object producing method, three-dimensional object producing apparatus, and three-dimensional object
  • Three-dimensional object producing method, three-dimensional object producing apparatus, and three-dimensional object
  • Three-dimensional object producing method, three-dimensional object producing apparatus, and three-dimensional object

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Embodiment 1 to 14

[0126] according to figure 2 The flow chart shown and Figure 4A to Figure 4F The illustrated three-dimensional object manufacturing method manufactures a three-dimensional object.

[0127] Powders prepared using the materials listed in Table 1 below in the following manner were employed.

[0128]

[0129] First, material particles (primary particles; particles of kaolin, titanium oxide, or aluminum oxide) and binder resin (polyvinyl butyral (PVB)) having predetermined central particle diameters shown in Table 1 were mixed in a solvent (ethanol) and fully dispersed to prepare a slurry.

[0130] Next, the obtained slurry is granulated into a droplet shape, and dried using, for example, a spray granulator and a drying sintering furnace. The resultant was then classified as necessary to obtain secondary particles having a central particle size shown in Table 1.

[0131] Next, the secondary particles are sintered. The secondary particles have a three-dimensional structure ...

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Abstract

Provided is a three-dimensional object producing method for producing a three-dimensional object using primary particles containing at least a ceramic material, the three-dimensional object producing method including: a forming step of forming a layer using secondary particles containing the primary particles and a binder resin; and an applying step of applying a liquid for dissolving the binder resin to the layer formed in the forming step, wherein a central particle diameter of the primary particles is 5 micrometers or less, wherein the liquid contains inorganic particles.

Description

technical field [0001] The present disclosure relates to a three-dimensional object manufacturing method, a three-dimensional object manufacturing device, and a three-dimensional object. Background technique [0002] Recently, resin powders such as those described in, for example, Japanese Patent No. 6520182 are known as resin powders for manufacturing complex, minute three-dimensional objects. However, even if the resin powder described in Japanese Patent No. 6520182 is used to manufacture an object, it is difficult to obtain a high-precision, high-density ceramic sintered body. Contents of the invention [0003] According to an aspect of the present disclosure, a three-dimensional object manufacturing method for manufacturing a three-dimensional object using primary particles (primary particles) containing at least a ceramic material includes: a forming (molding) step of forming a layer using secondary particles containing primary particles and a binding resin , and an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/20B29C64/386B33Y30/00B33Y50/00
CPCB29C64/20B29C64/386B33Y30/00B33Y50/00C04B35/634C04B35/638C04B35/6263C04B35/111C04B35/584C04B35/185C04B35/565C04B35/5626C04B35/581C04B35/62695C04B2235/6025B28B1/001C04B2235/549C04B2235/5436C04B2235/5445C04B2235/5454C04B2235/5463C04B2235/616B33Y10/00B33Y80/00B33Y40/20B33Y70/00B29C64/153B29C64/165
Inventor 鸭田纪一宫崎浩辅
Owner RICOH KK