Metal composite vacuum plate with getters and preparation method of metal composite vacuum plate

Abstract

A metal composite vacuum plate with getters comprises face plates, connecting layers and a vacuum chamber and is characterized in that the face plates are made of metal plates or metal composite plates; the face plates and / or the connecting layers provide additional strength for the vacuum chamber, so that smoothness of the vacuum chamber under atmosphere is guaranteed; the vacuum chamber is a sealed cavity which is formed in the mode that the edges of metal plates are sealed in a welding mode under normal pressure and the openings of the metal plates are sealed by high temperature under vacuum; the opening sealing operation is conducted as follows: an extraction opening preformed in the vacuum chamber is automatically sealed in a vacuum furnace by low-temperature welding fluxes on the basis of the liquid sealing principle; upholders and the getters are arranged in the vacuum chamber. A method for manufacturing the metal composite vacuum plate with the getters is simple in process, the prepared metal composite vacuum plate with the getters can overcome the defects of an existing heat preservation plate and an existing vacuum heat insulation plate, the air tightness of the vacuum chamber of the metal composite vacuum plate with the getters can be effectively guaranteed, the service life of the metal composite vacuum plate with the getters is prolonged, and strength, heat and sound insulation performance and fireproof performance of the metal composite vacuum plate with the getters can be improved.

Description

technical field [0001] The invention relates to the technical field of building energy conservation, in particular to a metal composite vacuum panel with a getter 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 secondar...

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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 difficulty in drying the core material, poor air tightness of the vacuum bag, low puncture resistance strength, fast vacuum decay, easy bag expansion, short heat preservation life, etc.

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