Glass welded metal vacuum composite insulation board with extraction opening and production method thereof

Abstract

The invention discloses a glass welded metal vacuum composite insulation board with an extraction opening. The metal vacuum composite insulation board comprises a shell, a core material, core veneers and a vacuum cavity, and is characterized in that the shell is made from a low carbon steel plate or a low carbon steel composite plate, the core material is located in the vacuum cavity and is used for providing additional strength to the vacuum cavity to ensure the smoothness of the vacuum cavity at barometric pressure, and 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 the shell and the 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 the low temperature solder comprises a low temperature metal and an alloy solder. A production method of the metal vacuum composite 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 and fire resistance can be improved.

Description

technical field [0001] The invention relates to a vacuum heat insulation panel, in particular to a glass-welded metal vacuum composite heat insulation panel with an air suction port 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 thermal i...

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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 welding with The metal vacuum composite heat insulation board with the air suction port and its manufacturing method, the manufacturing method of the glass-welded metal vacuum composite heat insulation board with the air suction port is simple in process, and the prepared metal vacuum composite heat insulation board with the air suction port can overcome the existing heat insulation Insufficient insulation board, vacuum insulation board and thermal insulation board can effectively ensure the airtightness of the metal vacuum composite insulation board with the air exhaust port welded by glass, prolong the service life, and increase its strength, heat insulation, sound insulation and fire prevention performance, and at the same time has a good decorative effect

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