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Glass welded ceramic composite vacuum insulation board and production method thereof
The invention discloses a glass welded ceramic composite vacuum insulation board. The ceramic composite vacuum insulation board comprises a panel, a connecting layer and a vacuum cavity, and is characterized in that the panel is made from either a ceramic plate or a ceramic tile, the panel and/or the connecting layer are used for providing additional strength to the vacuum cavity so as to ensure the smoothness of the vacuum cavity at barometric pressure, the vacuum cavity is a closed cavity formed by carrying out glass welding and sealing at constant pressure and high temperature and sealing at high temperature in vacuum to low carbon steel plates and coefficients of thermal expansion of the low carbon steel plate and the glass solder are matched; the sealing is that an extraction opening preformed in the vacuum cavity is automatically sealed by a low temperature solder in a vacuum furnace according to a liquid sealing theory, and a support is arranged in the vacuum cavity. A production method of the ceramic composite vacuum insulation board provided by the invention is simple in process, the air-tightness of the vacuum cavity of the ceramic composite vacuum insulation board can be effectively ensured, the service life of the ceramic composite vacuum insulation board can be prolonged, and the strength, heat insulation, sound insulation and fire resistance can be enhanced.
Glass welded ceramic composite vacuum insulation board and production method thereof
The invention discloses a glass welded ceramic composite vacuum insulation board. The ceramic composite vacuum insulation board comprises a panel, a connecting layer and a vacuum cavity, and is characterized in that the panel is made from either a ceramic plate or a ceramic tile, the panel and/or the connecting layer are used for providing additional strength to the vacuum cavity so as to ensure the smoothness of the vacuum cavity at barometric pressure, the vacuum cavity is a closed cavity formed by carrying out glass welding and sealing at constant pressure and high temperature and sealing at high temperature in vacuum to low carbon steel plates and coefficients of thermal expansion of the low carbon steel plate and the glass solder are matched; the sealing is that an extraction opening preformed in the vacuum cavity is automatically sealed by a low temperature solder in a vacuum furnace according to a liquid sealing theory, and a support is arranged in the vacuum cavity. A production method of the ceramic composite vacuum insulation board provided by the invention is simple in process, the air-tightness of the vacuum cavity of the ceramic composite vacuum insulation board can be effectively ensured, the service life of the ceramic composite vacuum insulation board can be prolonged, and the strength, heat insulation, sound insulation and fire resistance can be enhanced.
Glass welded ceramic composite vacuum insulation board and production method thereof
DAI CHANGHONG (author)
2015-07-01
Patent
Electronic Resource
English
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