Vacuum ceramic thermal baffle welded by metal solders and manufacturing method of thermal baffle

Abstract

The invention provides a vacuum ceramic thermal baffle. The thermal baffle comprises an upper thermal baffle and a lower thermal baffle, wherein the peripheries of the upper and lower thermal baffles are welded together by metal or alloy solders; a closed vacuum layer is formed between the upper thermal baffle and the lower thermal baffle; and the upper and lower thermal baffles can be flat, flat externally and concave internally, or convex. A manufacturing method of the vacuum ceramic thermal baffle is simple in process. According to the invention, the manufactured vacuum ceramic thermal baffle can overcome defects of the conventional thermal baffle, the air tightness of the vacuum layer of the thermal baffle can be effectively ensured, the service life of the thermal baffle can be prolonged, the strength, sound insulation and fireproof performance of the thermal baffle can be improved, and the thermal baffle also can achieve a good decoration effect.

Description

technical field [0001] The invention relates to the technical field of building energy saving, in particular to a vacuum ceramic heat insulation board and a manufacturing method thereof. Background technique [0002] At present, the materials used in domestic building exterior wall insulation are mainly 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. When burning, they not only release a lot of heat, A large amount of toxic smoke is produced, and it can accelerate the spread of the fire; at the same time, the organic material will shrink during the fire, resulting in burning droplets, causing the tiles on the insulation layer to fall off, which is likely to cause secondary fires and secondary fires. Therefore, relevant parts of the state have explicitly prohibited the use of organic thermal insulation materials for external wall insulation, especi...

AI Technical Summary

Problems solved by technology

[0002] At present, the materials used in domestic building exterior wall insulation are mainly 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. When burning, they not only release a lot of heat, A large amount of toxic smoke is produced, and it can accelerate the spread of the fire; at the same time, the organic material will shrink during the fire, resulting in burning droplets, causing the tiles on the insulation layer to fall off, which is likely to cause secondary fires and secondary fires. Second damage, so the relevant part of the country expressly prohibits the use of organic thermal 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.

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