Glass welded double-vacuum-layer composite vacuum insulation board and production method thereof

Abstract

The invention discloses a glass welded double-vacuum-layer composite vacuum insulation board. The double-vacuum-layer composite vacuum insulation board comprises a panel, core veneers and a vacuum cavity, and is characterized in that the panel is fixed on the upper outer surface of the vacuum cavity, the core veneers are placed at the inner bottom of the vacuum cavity, and the panel and / or the core veneers 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 at constant temperature and high temperature and sealing at constant pressure to low carbon steel plates and the sealing is that an extraction opening preformed in the vacuum cavity is sealed by a low temperature solder in a vacuum furnace according to a liquid sealing theory; a clapboard is arranged in the vacuum cavity and is used for dividing the vacuum cavity into double vacuum layers, and supports are arranged in the vacuum layers and are separately made or directly formed on the vacuum cavity or the clapboard. A production method of the double-vacuum-layer composite vacuum insulation board provided by the invention is simple in process, the defects of an existing insulation board and an existing vacuum insulated panel can be overcome, and the strength, heat insulation, sound insulation, fire resistance and decorative function can be improved.

Description

technical field [0001] The invention relates to the technical field of building energy conservation, in particular to a glass-welded double-vacuum layer composite vacuum heat insulation board and a manufacturing method thereof. Background technique [0002] At present, the materials used for building exterior wall insulation are divided into A-grade thermal insulation materials and B-grade thermal insulation materials. A-grade thermal insulation materials have good fire resistance, but their thermal insulation performance and water resistance are lower than B-grade thermal insulation materials, and there are high prices. Complex construction technology and other issues; B-grade thermal insulation materials have the advantages of low cost, good thermal insulation performance, and mature construction technology, but their durability is not good, heat resistance is poor, and they are easy to burn. Moreover, it can accelerate the spread of fire, so it is forbidden to use organic...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a new type of glass-welded double-vacuum-layer composite vacuum insulation panel and its manufacturing method for the defects of existing building insulation panels, thermal insulation panels, and vacuum insulation panels. The manufacturing method of welding double-vacuum-layer composite vacuum insulation panels is simple, and the prepared double-vacuum-layer composite vacuum insulation panels can overcome the deficiencies of existing insulation panels, vacuum insulation panels and insulation panels, and can effectively ensure that the double-vacuum layer composite The airtightness of the vacuum insulation panel can prolong the service life, increase its strength, heat insulation, sound insulation and fireproof performance, and also have a good decorative effect

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