Carrying utensil

A technology for mounters and ceramic capacitors, which is applied in the fields of capacitors, capacitor manufacturing, lighting and heating equipment, etc., can solve the problems of reduced lifespan of mounters, degraded characteristics, discoloration of ceramic capacitors, etc.

Active Publication Date: 2011-04-20
NGK INSULATORS LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the technique described in Patent Document 1, when the fired material is a ceramic capacitor containing a titanium component, there is a problem that a chemical reaction occurs at or near the contact portion between the mounting device and the ceramic capacitor. , discoloration, thermal bonding, or degradation of characteristics due to changes in composition occur on ceramic capacitors
[0006] In addition, when a chemical reaction occurs at or near the contact portion between the mount and the ceramic capacitor, not only the ceramic capacitor is defective, but also the life of the mount is reduced.

Method used

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Examples

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Embodiment

[0027] The present invention is further specifically described below through examples, but the present invention is not limited to the examples.

[0028] Alumina (Al 2 o 3 ) Alumina (Al 2 o 3 ) particles, 10% by mass of calcined alumina with a particle size of 0.5mm or less, 15% by mass of clay with a particle size of 10μm or less, and 25% by mass of andalusite with a particle size of 0.15mm or less, to prepare a mixed raw material. Next, 0.5 parts by mass of methyl cellulose as a binder and 3 parts by mass of water were added to 100 parts by mass of the obtained mixed raw material, followed by wheel mill kneading to obtain kneaded clay. Then, through a hydraulic press at 1t / cm 2 The kneaded clay was molded under a pressure of 150 mm×150 mm×4 mm, and the molded body was dried at 80° C. for 8 hours, and then fired at 1550° C. for 2 hours to produce an aluminum silicate substrate.

[0029] Next, use 8% by mass Y with a particle size of 100 to 200 μm 2 o 3Stabilize zircon...

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PUM

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Abstract

The invention provides a carrying utensil for firing, so disposed that upon firing a ceramic electric container which possesses titanium component, the contact part between the carrying utensil and the ceramic electric container or the proximity there of will not generate chemical reaction, and what's more, no color changing, heat bonding, or decreasing properties due to changes of components will arise to the ceramic electric container. The carrying utensil employed in the firing of ceramic electric container which possesses titanium component comprises a surface layer of zirconate on its surface of basic materials, wherein the titanium component on the surface is quantified on titanium oxide, that is within 0 and 0.1 quantity percent.

Description

technical field [0001] The present invention relates to a carrier for firing ceramic capacitors containing a titanium component. Background technique [0002] As a carrier for firing ceramic capacitors, in addition to heat resistance and mechanical strength, it is also required that it does not react with fired ceramic capacitors. [0003] Usually, aluminum silicate-based high-alumina materials with excellent thermal shock resistance are used for the base material of the carrier for firing electronic parts. In order to prevent the reaction between the fired parts and the base material components, the implementation method is as follows: Mount the carrier made of zirconia which has excellent chemical stability at high temperature, or form a sintered layer of zirconia powder, or a spray coating. Among them, recently, spray-coated kiln furniture is used because of the durability of the kiln furniture and the ease of use. The zirconia used in this spraying contains CaO, Y 2 o...

Claims

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Application Information

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IPC IPC(8): C04B41/85C04B35/66C04B35/64C04B41/87F27D3/12H01G13/00
Inventor 古宫山常夫堀田启之西尾彰
Owner NGK INSULATORS LTD
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