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Refractory heat-insulating material for microwave oven

A heat-insulating material and refractory technology, applied in the direction of electric furnace heating, furnace, application, etc., can solve the problems of energy increase and heat energy that cannot be ignored

Inactive Publication Date: 2005-04-20
歧阜县 +1
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  • Abstract
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Problems solved by technology

Therefore, the energy required for firing increases
[0007] In addition, if the thickness of the refractory and heat insulating material is reduced to reduce the microwave energy consumed by the refractory and heat insulating material, the heat energy lost from the refractory and heat insulating material due to radiation cooling cannot be ignored, and as a result, the fired product and the refractory and heat insulating material are produced. The problem of temperature gradients between

Method used

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  • Refractory heat-insulating material for microwave oven
  • Refractory heat-insulating material for microwave oven
  • Refractory heat-insulating material for microwave oven

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Embodiment Construction

[0039] Although examples of the present invention are described, these examples are merely examples, and the present invention is not limited thereto.

[0040] First, a small amount of iron oxide and mullite fibers are added to mullite-based cement and mixed to form a coating material.

[0041]Then, this coating material was coated on a ceramic fiber board (FMX-17SR manufactured by Toshiba Monoflux Co., Ltd.) having a thickness of 40 mm to a thickness of 2 mm. Then it was dried at 100°C for 3 hours and fired at 1000°C for 1 hour to obtain the fire-resistant and heat-insulating material of the present invention.

[0042] Then, use this fire-resistant and heat-insulating material as the inner side of the heat-generating layer to form a closed space of 300×600×300 mm.

[0043] Then, as a target to be fired, a coffee cup-shaped earthenware container having an outer diameter of 85 mm, an inner diameter of 75 mm, and a height of 85 mm was prepared. Place the pottery container in t...

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Abstract

PROBLEM TO BE SOLVED: To provide a high performance refractory insulating material suitable for a furnace wall material for baking a baking material by a self-heating caused by radiating microwave thereon. SOLUTION: In this refractory insulating material for microwave kiln for baking the baking material by the self-heating caused by radiating microwave thereon, a heating layer is formed on one face of a base material, and the base material is formed mainly of an inorganic fiber material and the heating layer is formed mainly of mullite. The heating layer may include, in addition to mullite, a substance having a larger microwave absorbing property than mullite. Also the heating layer includes an inorganic binder. The inorganic binder covers only mullite or the substance having the microwave absorbing property larger than mullite and mullite continuously in film shape.

Description

technical field [0001] The invention relates to a refractory and heat insulating material and a coating material, which are suitable as a furnace wall material for firing self-heating of ceramic materials or fine ceramic materials and other fired objects caused by microwave irradiation. technical background [0002] In the past, electric furnaces or gas furnaces were generally used to fire the objects to be fired. However, in the case of firing by external heating, it is necessary to gradually increase the temperature in the furnace so that the temperature difference between the surface and the inside of the object to be fired does not increase. Therefore, there is a problem that the firing time becomes long. [0003] Therefore, in order to solve such problems, it has been proposed to bake the fired object with microwaves (for example, JP-A-6-87663, etc.). This method shortens the firing time, is excellent in controlling the atmosphere, and also reduces environmental pollu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/32C04B35/64C09K21/02F27D1/00F27D1/04F27D11/12
CPCC04B35/66C04B35/76C04B40/0014C04B2235/5228C04B2235/9607
Inventor 佐藤元泰高山定次水野正敏平井敏夫加藤布久大泽正人藤井幹也三须安雄
Owner 歧阜县
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