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3D ceramic thin-walled part and preparation method thereof

A technology for thin-walled parts and ceramic flakes, applied in the field of 3D ceramic thin-walled parts and their preparation, can solve the problems of high cost, difficult to control sintering deformation, large machining allowance, etc.

Active Publication Date: 2021-04-16
GUANGDONG XINXIU NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This production process has problems such as difficult control of sintering deformation, large machining allowance, and high cost.

Method used

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  • 3D ceramic thin-walled part and preparation method thereof
  • 3D ceramic thin-walled part and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Please refer to figure 1 , provide mold 10, and this mold 10 comprises concave mold 11 and convex mold 12, and convex mold 12 is adapted to the shape of concave mold 11, and concave mold 11 is used for putting ceramic sheet 20, and convex mold 12 is used for concave mold 11 The inner ceramic sheet 20 is pressurized, and the bottom of the die 11 is provided with a structural cavity 13 corresponding to the structure to be prepared, and the punch 12 and the die 11 are pressed into the graphite powder in the punch 12;

[0028] Put the ceramic sheet into the above-mentioned concave mold 11;

[0029] Cover graphite powder on the top of the ceramic sheet 20 to form a graphite powder layer 30;

[0030] Cover the punch 12 of the mould;

[0031] Heat until the temperature inside the mold 10 reaches 1100°C-1500°C, then start to pressurize the mold at the first rate until the mold has obvious pressure, continue to pressurize at the second rate less than the first rate, and then h...

Embodiment 2

[0051] The difference between this embodiment and Embodiment 1 is that the mold 10 includes a die and an indenter 14, and the bottom of the indenter 14 is planar. Unlike the punch 12, the indenter 14 directly presses down on the graphite powder layer 30 to prepare The method is the same as in Example 1.

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Abstract

The invention discloses a 3D ceramic thin-walled part and a preparation method thereof. The method for preparing the above-mentioned 3D ceramic thin-walled parts comprises the following steps: putting the ceramic sheet into the concave die of the mould, the bottom of the concave die is provided with a structural cavity; covering the top of the ceramic sheet with graphite powder; The punch or pressure head of the above-mentioned mold; heat until the temperature in the mold reaches 1100°C-1500°C, then start to pressurize the mold at the first rate until the mold has obvious pressure, continue to Pressurizing at a second rate lower than the first rate, maintaining the pressure for a period of time, and then cooling to room temperature to obtain a 3D ceramic thin-walled part. The preparation method of the 3D ceramic thin-walled part of the invention has low cost, can guarantee the processing effect, can better control the shape of the ceramic, and prevent deformation.

Description

technical field [0001] The invention relates to the technical field of 3D ceramic thin-walled parts, in particular to a 3D ceramic thin-walled part and a preparation method thereof. Background technique [0002] 3D ceramic thin-walled parts refer to ceramic thin-walled products with curved surfaces. Because the sintering deformation of such products is difficult to control, it is usually first prepared into a thicker ceramic body, and then thinned by CNC and processed into a corresponding structure, such as a curved ceramic part. This production process has problems such as difficult control of sintering deformation, large machining allowance, and high cost. Contents of the invention [0003] Based on this, it is necessary for the present invention to provide a method for preparing 3D ceramic thin-walled parts with low cost, guaranteed processing effect, better control of ceramic shape and prevention of deformation. [0004] The invention also provides a 3D ceramic thin-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B28B3/26
CPCB28B3/2654
Inventor 武建文峰汪应山
Owner GUANGDONG XINXIU NEW MATERIAL CO LTD