Glass welded metal vacuum 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 and a vacuum cavity, and is characterized in that the shell is made from either 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 normal pressure and high temperature and sealing at high 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 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 insulation ...

AI Technical Summary

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 A metal vacuum heat insulation panel with an air extraction port and a manufacturing method thereof, the method for manufacturing the glass-welded metal vacuum insulation panel with an air extraction port is simple in process, and the prepared metal vacuum insulation panel with an air extraction port can overcome existing heat insulation panels, vacuum Insufficient heat insulation board and heat preservation board can effectively ensure the airtightness of the glass-welded metal vacuum insulation board with an air outlet, prolong the service life, increase its strength, heat insulation, sound insulation, and fire resistance, and also have good decorative effect

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