Firing kiln and process for producing ceramic member therewith

A manufacturing method and component technology, applied in the direction of furnaces, furnace linings, muffle furnaces, etc., can solve problems such as the reduction of the effect of the heat insulation layer, the reduction of the heat insulation of the heat insulation layer, and the deformation of ceramic fibers, so as to prevent cracks, prevent damage, and heat insulation performance excellent effect

Inactive Publication Date: 2007-05-30
IBIDEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] If the thermal insulation performance of the thermal insulation layer is reduced in this way, there will be the following problems: due to the temperature rise of the outermost layer, the softening of the ceramic fiber itself will cause deformation, and the function as a thermal insulation layer will be reduced.

Method used

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  • Firing kiln and process for producing ceramic member therewith
  • Firing kiln and process for producing ceramic member therewith
  • Firing kiln and process for producing ceramic member therewith

Examples

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Embodiment 1

[0100] (1) Fabricate a firing furnace as shown in FIG. 1, and make the innermost layer as a layer 13a made of carbon parts (FR200 / OS manufactured by Kureha Chemical Industry Co., Ltd., density: 0.16 g / cm 3 , thickness: 50mm), the second layer is made of a layer 13b made of carbon parts (FR200 / OS manufactured by Kureha Chemical Industry Co., Ltd., density: 0.16g / cm 3 , thickness: 50mm), while the outermost layer is made of carbon insulation material layer 130 (density: 0.16g / cm 3 , thickness: 25mm) and carbon fiber layer 131 (density: 0.1g / cm 3 , Thickness: 25mm) composite layer (manufactured by Kureha Chemical Industry Co., Ltd.), in an atmosphere of argon gas at normal pressure, set the maximum temperature in the muffle furnace to 2200 ° C, and pass through to the center of the heating chamber Thermocouples were inserted into the heat insulating material, and the temperature of the heat insulating layer 13 was measured at various positions shown in FIG. 2 .

[0101] As a r...

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Abstract

A firing kiln that is free from any substantial drop of heat insulating performance of heat insulating layer, being free from any splitting into two parts or exfoliation of heat insulating layer, and that excels in long-term durability and heat efficiency. There is provided a firing kiln comprising a muffle formed so as to ensure a space for accommodation of moldings to be fired, a heater, or heating element functioning as a heater, disposed outside the muffle and multiple heat insulating layers disposed so as to enclose the muffle and the heater, characterized in that the heat insulating layers are made of carbon and fixed by means of holdbacks of carbon.

Description

technical field [0001] This application claims priority based on Japanese Patent Application No. 2004-233626 filed on August 10, 2004. [0002] The present invention relates to a firing furnace used for producing ceramic components such as a ceramic honeycomb structure and a method for producing ceramic components using the firing furnace. Background technique [0003] Various exhaust gas-purifying honeycomb filters and catalyst supports for purifying exhaust gas discharged from vehicles such as buses and trucks and internal combustion engines of construction machinery have been proposed. [0004] As such a honeycomb filter for purifying exhaust gas, a honeycomb structure containing a non-oxide ceramic porous material such as silicon carbide, which is very excellent in heat resistance, is used. [0005] Conventionally, for example, Patent Document 1 and Patent Document 2 describe firing furnaces for producing such non-oxide ceramic components. [0006] A firing furnace for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B5/08C04B35/64F27D1/14
CPCF27D1/0003F27B5/08F27D1/14F27B5/14
Inventor 西城贵满广嵨裕一樋口宏司
Owner IBIDEN CO LTD
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