Heat resisting vacuum heat insulating material

A vacuum insulation and heat-resistant technology, applied in heat exchange equipment, lighting and heating equipment, and pipeline protection through heat insulation, etc., can solve problems such as failure to maintain vacuum state, rupture, and melting of bag-shaped containers

Inactive Publication Date: 2009-05-27
KOYO THERMO SYST CO LTD
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  • Abstract
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Problems solved by technology

However, the vacuum heat insulating material used for consumer electrical equipment is obtained by vacuum-exhausting and sealing the inside of a bag-shaped container containing a heat-insulating material molded body and a heat-sealable sheet. On the outside of the heating device for heat treatment at ~100°C, the bag-shaped container will melt and rupture, and the vacuum state cannot be maintained.

Method used

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  • Heat resisting vacuum heat insulating material
  • Heat resisting vacuum heat insulating material

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Embodiment Construction

[0027] figure 1 It is a cross-sectional view of a heating device to which the heat-resistant vacuum insulation material according to the embodiment of the present invention is applied. As an example, the heating device 10 performs heat treatment in which a plate-shaped treatment object such as a plurality of glass substrates is kept at a treatment temperature of about 220° C. to 230° C. for a certain period of time. Therefore, the heating device 10 has the heat-resistant heat insulating materials 21-24 and the heat-resistant vacuum heat insulating materials 1-4.

[0028] The heat-resistant heat insulating materials 21 to 24 constitute a wall surface surrounding the heating chamber 20 . The heating chamber 20 accommodates a plurality of processing objects. The heating chamber 20 is heated by a heater not shown so as to maintain the processing temperature. The heat-resistant heat insulating materials 21 to 24 are heat insulating materials excellent in heat resistance, such as...

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Abstract

The present invention provides a heat-proof vacuum insulation material, having an outer housing body composed of an internal surface material with smaller coefficient of linear thermal expansion than that of an outer surface material, such that opening interstice may not form between the outer surface of the wall surface and the internal surface of the heat-proof vacuum insulation material, which holds adiathermancy of a heating chamber. A first component (11) configured on a high temperature side is composed of material with smaller coefficient of linear thermal expansion than that of material of a second component (12) configured on a low-temperature side, after a core is accommodated between the first component (11) and the second component (12), the inside become vacuum state, such that large difference may not generate between the heat distortion of the first component (11) and that of the second component (12), thereby preventing reduction of adiathermancy of the heating chamber (20) caused by separation of the heat-proof vacuum insulation material (1) from the heat-proof insulation material (21) after deformation in thickness direction.

Description

technical field [0001] The present invention relates to a heat insulating material arranged on the outside of a high-temperature processing device such as a heating device, and particularly relates to a heat-resistant vacuum heat insulating material in which the inside of a sealed outer casing made of a heat-resistant material containing a heat insulating body is in a vacuum state. Background technique [0002] As an example, the manufacturing process of the glass substrate for flat panel display devices includes the heat treatment which heats the glass substrate which is a processing object at predetermined temperature (for example, about 220 degreeC - 230 degreeC). In this heat treatment, a heating device is used which has a heating chamber whose walls are made of a heat-resistant heat insulating material, and raises the temperature of the heating chamber containing the object to be processed to a temperature suitable for the heat treatment of the object to be processed. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D1/00F27D1/10F16L59/065F16L59/05
Inventor 长岛靖
Owner KOYO THERMO SYST CO LTD
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