Metal vacuum insulation panel and its preparation method

Abstract

Metal vacuum insulation panel, comprising a housing, a core material and a vacuum chamber, wherein said housing is a metal plate or a metal composite plate, the core material is in the vacuum chamber housing is formed by seal welding, the providing core material additional strength to the housing, at atmospheric pressure to ensure the flatness of the housing, the vacuum chamber in a vacuum furnace under high vacuum at a high temperature batch automatic welding seal. This method of manufacturing a metal vacuum insulation panel according to the invention the process is simple, metal vacuum insulation panel prepared can overcome the conventional insulation panels, insufficient vacuum insulation panel, which can effectively ensure the hermetic seal of a metal vacuum chamber vacuum insulation panel, the extension metal vacuum insulation panel lifetime, and can increase the strength and heat insulation, sound insulation and fire performance and decorative function.

Description

technical field [0001] The invention relates to a vacuum heat insulation panel, in particular to a metal vacuum heat insulation panel and a manufacturing method thereof. Background technique [0002] my country's building energy consumption has accounted for more than 1 / 3 of the energy consumption of the whole society, and it is increasing year by year. The use of thermal insulation building materials is one of the main means to reduce building energy consumption. At present, many materials used for building exterior wall insulation are Class B insulation materials, such as polystyrene, polyurethane, foam rubber and other organic materials. These organic materials have poor heat resistance and are easy to burn. A large amount of toxic smoke can accelerate the spread of the fire; at the same time, organic materials will shrink during a fire, producing burning droplets, causing the tiles on the insulation layer to fall off, which may cause secondary fires and secondary fires. ...

AI Technical Summary

Problems solved by technology

At present, many materials used for building exterior wall insulation are Class B insulation materials, such as polystyrene, polyurethane, foam rubber and other organic materials. These organic materials have poor heat resistance and are easy to burn. A large amount of toxic smoke can accelerate the spread of the fire; at the same time, organic materials will shrink during a fire, producing burning droplets, causing the tiles on the insulation layer to fall off, which may cause secondary fires and secondary fires. harm, so the relevant state departments explicitly prohibit the use of organic insulation materials for external wall insulation, especially in high-rise buildings and public buildings

Among the thermal insulation materials whose combustion performance reaches the A-level standard, inorganic materials represented by mineral wool and rock wool are mainly used. However, the existing domestic products have a large gap with the requirements of architectural applications in terms of water absorption, strength, and weather resistance. If it is directly used for building wall insulation, there will be problems such as water absorption, falling, softening, etc.

In addition, the cost of Class A thermal insulation materials is much higher than that of organic materials, and the construction process is complicated. The construction cost far exceeds the cost of Class B thermal insulation materials, and its thermal insulation performance is poor and energy consumption is high, which cannot meet the current needs of the country for energy conservation and emission reduction.

[0003] Vacuum insulation panels are a new type of insulation material developed in recent years, mainly including vacuum bags and core materials. There are obvious disadvantages such as difficult drying of the core material, poor air tightness of the vacuum bag, low puncture resistance, high moisture content of the core material, fast vacuum attenuation, easy expansion of the bag, short insulation life, etc.

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