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Glass welded metal composite vacuum plate and production method thereof
The invention discloses a glass welded metal composite vacuum plate. The vacuum plate comprises a panel, a connecting layer and a vacuum cavity, and is characterized in that the panel is made from a a metal plate, the panel and the vacuum cavity are integrally connected by the connecting layer, the panel and/or the connecting layer are used for providing additional strength to the vacuum cavity to ensure the smoothness of the vacuum cavity in barometric pressure, and the vacuum cavity is formed by welding low carbon steel plates by a glass solder in the vacuum furnace at high vacuum and high temperature; the coefficients of thermal expansion of the low carbon steel plates and the glass solder are matched, and a support is arranged in the vacuum cavity and is separately made or directly formed in the vacuum cavity. A production method of the metal composite vacuum plate provided by the invention is simple in process, the defects of an existing insulation board and a vacuum insulated panel can be overcome by the prepared glass composite vacuum plate, the air-tightness of the vacuum cavity of the metal composite vacuum plate can be effectively ensured, the service life of the metal composite vacuum plate can be prolonged, and the strength, heat insulation, sound insulation and fire resistance can be enhanced.
Glass welded metal composite vacuum plate and production method thereof
The invention discloses a glass welded metal composite vacuum plate. The vacuum plate comprises a panel, a connecting layer and a vacuum cavity, and is characterized in that the panel is made from a a metal plate, the panel and the vacuum cavity are integrally connected by the connecting layer, the panel and/or the connecting layer are used for providing additional strength to the vacuum cavity to ensure the smoothness of the vacuum cavity in barometric pressure, and the vacuum cavity is formed by welding low carbon steel plates by a glass solder in the vacuum furnace at high vacuum and high temperature; the coefficients of thermal expansion of the low carbon steel plates and the glass solder are matched, and a support is arranged in the vacuum cavity and is separately made or directly formed in the vacuum cavity. A production method of the metal composite vacuum plate provided by the invention is simple in process, the defects of an existing insulation board and a vacuum insulated panel can be overcome by the prepared glass composite vacuum plate, the air-tightness of the vacuum cavity of the metal composite vacuum plate can be effectively ensured, the service life of the metal composite vacuum plate can be prolonged, and the strength, heat insulation, sound insulation and fire resistance can be enhanced.
Glass welded metal composite vacuum plate and production method thereof
DAI CHANGHONG (author)
2015-07-01
Patent
Electronic Resource
English
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