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Process for producing conductor built-in ceramic

A manufacturing method, a technology of ceramics, applied in the direction of combustion methods, manufacturing tools, ceramic molding machines, etc., can solve problems such as difficult to make shapes, and achieve the effect of inhibiting fracture and deformation

Active Publication Date: 2010-09-22
KYOCERA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] However, since the manufacturing methods described in Patent Documents 1 to 3 are formed by using a uniaxial press forming method, it is difficult to produce complex shapes, and there is a problem that in order to eliminate deformation during press forming, the conductor portion Metal parts must have strength

Method used

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  • Process for producing conductor built-in ceramic
  • Process for producing conductor built-in ceramic
  • Process for producing conductor built-in ceramic

Examples

Experimental program
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no. 1 Embodiment approach

[0046] figure 1 (a) to (f) are cross-sectional views showing the manufacturing method of this embodiment, respectively. The manufacturing method of this embodiment includes the following steps: a step of producing a molded body 11 for a current-carrying part by injection molding using a mixture (composite) for a current-carrying part containing a conductive ceramic powder and a binder ( figure 1 (a)); Hold the molded body 11 for the energization part in the mold 13 for injection molding ( figure 1 (b)) Fill the mold 13 with a matrix mixture 15 (slurry or composite) containing insulating ceramic powder and a binder ( figure 1 (c) to (e)), the process of producing the element molded body 17 in which the current-carrying portion molded body 11 is covered with the base mixture 15 ( figure 1 (f)); A step of firing the element molded body 17.

[0047] Specifically, such as figure 1 As shown in (c) to (e), in the process of producing the element molded body 17, the current-carrying part m...

no. 2 Embodiment approach

[0059] Next, the manufacturing method of the second embodiment of the present invention will be described. The manufacturing method is as figure 2 As shown, in the element molded body production process, when the conductive part molded body 11 is covered with the matrix mixture 15, a part of the conductive part molded body 11 is covered with the matrix mixture 15, and then the matrix mixture 15 is wrapped Cover the remaining part. In this way, the element molded body 33 can be produced. Specific examples are shown below.

[0060] figure 2 (a) to (d) are each a cross-sectional view showing the manufacturing method of the second embodiment of the present invention. Such as figure 2 As shown in (a) to (d), the manufacturing method of this embodiment is different from the above-mentioned first embodiment in the step of manufacturing the element molded body 33.

[0061] In the element molded body production process of the present embodiment, a plurality of mold members 25, 27, and...

no. 3 Embodiment approach

[0065] image 3 (a) and (b) are cross-sectional views showing the manufacturing method of the third embodiment of the present invention. Such as image 3 As shown in (a) and (b), the manufacturing method of this embodiment includes the following steps: using a mixture (composite) for a current-carrying part containing a conductive ceramic powder and a binder to produce a molded body 11 for a current-carrying part by injection molding Process( image 3 (a)); A step of producing two molded bodies 35, 37 for a matrix by injection molding using a mixture (composite) for a matrix containing an insulating ceramic powder and a binder ( image 3 (a)) The current-carrying portion molded body 11 is arranged between the base molded bodies 35 and 37, and the matrix molded body 35, 37 is bonded to produce the current-carrying molded body 11 by the base molded body 35, 37 Process of coated element molded body 39 ( image 3 (b)); A step of firing the element molded body 39.

[0066] In thi...

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Abstract

To provide a process for producing a conductor built-in ceramic which can eliminate the need to conduct metallic lead wire processing, can prevent the entry of a foreign matter, dust and the like from gaps between bases formed in degreasing and firing and can reduce a dielectric breakdown failure, and a conductor built-in ceramic produced by the production process. A process for producing a conductor built-in ceramic, comprising the step of producing a molded product (11) for an energization part using a mixture, for an energization part, containing an electroconductive ceramic powder and a binder, the step of holding the molded product (11) for an energization part within a mold (13) and filling a mixture (15), for a base, containing an insulating ceramic powder and a binder into the mold (13) to produce an element molded product (17) comprising a molded product (11), for an energization part, covered with the mixture (15) for a base, and the step of firing the element molded product(17). According to the production process, the formation of gaps between the energization part and the base can be suppressed, and external inclusion of a foreign material, dust and the like in the element molded product (17) in degreasing or firing can also be suppressed.

Description

Technical field [0001] The present invention relates to a method for manufacturing ceramics with built-in conductors. Background technique [0002] Conventionally, various methods have been proposed as a method of manufacturing ceramics with built-in conductors. For example, Patent Documents 1 to 3 disclose the following methods: granulating a mixture containing ceramics and a binder to obtain granules, hot pressing the obtained granules to prepare a pre-formed body, placing metal parts between the pre-formed bodies, and performing a process A method of forming a shaft under pressure and sintering by hot pressing to obtain a ceramic with built-in metal parts. In addition, Patent Documents 4 and 5 disclose a method of applying a paste of a ceramic material used as an electrode on a first ceramic molded body used as a base, and then mounting the paste on a second ceramic molded body used as a base and firing it. Thereby, a method of internal ceramics in electrodes is obtained. F...

Claims

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Application Information

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IPC IPC(8): C04B35/622B28B1/24B28B11/02F23Q7/00H05B3/18
CPCC04B41/87C04B2235/6022B28B23/0056C04B2111/94C04B41/009C04B35/584B28B1/24C04B35/63424B28B1/008C04B35/5626C04B35/63408C04B35/632B28B1/002C04B41/5066C04B35/63432C04B41/4539
Inventor 筒井义也
Owner KYOCERA CORP
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