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Metal vacuum composite heat-insulation plate with edge sealed by seal strip and manufacturing method thereof
A metal vacuum composite heat-insulation plate with edge sealed by a seal strip comprises a housing, at least two core plates and a vacuum cavity and is characterized in that the housing is a low-carbon steel plate, the core plates are located in the vacuum cavity and provides additional strength for the housing, the vacuum cavity is a closed cavity formed by welding the housing and sealing the edge by utilizing a glass solder under the constant pressure and high temperature and performing high-temperature sealing under the vacuum condition, the seal strip is arranged at the welding position of the edge portion of the low-carbon steel plate, and the low-carbon steel plate is matched with the coefficient of thermal expansion of the glass solder. The sealing is automatic sealing performed by utilizing an air exhaust opening pre-formed in the housing and a low-temperature solder in a vacuum furnace according to a liquid seal principle, the low-temperature solder includes low-temperature metal and an alloy solder, and a support is arranged between the core plates. A manufacturing method of the metal vacuum composite heat-insulation plate is simple in process, the manufactured metal vacuum composite heat-insulation plate can overcome the shortcomings of existing heat preservation plates and vacuum heat-insulation plates, and strength, heat-insulation, sound-insulation and fireproof performance and a decorative function can be improved.
Metal vacuum composite heat-insulation plate with edge sealed by seal strip and manufacturing method thereof
A metal vacuum composite heat-insulation plate with edge sealed by a seal strip comprises a housing, at least two core plates and a vacuum cavity and is characterized in that the housing is a low-carbon steel plate, the core plates are located in the vacuum cavity and provides additional strength for the housing, the vacuum cavity is a closed cavity formed by welding the housing and sealing the edge by utilizing a glass solder under the constant pressure and high temperature and performing high-temperature sealing under the vacuum condition, the seal strip is arranged at the welding position of the edge portion of the low-carbon steel plate, and the low-carbon steel plate is matched with the coefficient of thermal expansion of the glass solder. The sealing is automatic sealing performed by utilizing an air exhaust opening pre-formed in the housing and a low-temperature solder in a vacuum furnace according to a liquid seal principle, the low-temperature solder includes low-temperature metal and an alloy solder, and a support is arranged between the core plates. A manufacturing method of the metal vacuum composite heat-insulation plate is simple in process, the manufactured metal vacuum composite heat-insulation plate can overcome the shortcomings of existing heat preservation plates and vacuum heat-insulation plates, and strength, heat-insulation, sound-insulation and fireproof performance and a decorative function can be improved.
Metal vacuum composite heat-insulation plate with edge sealed by seal strip and manufacturing method thereof
DAI CHANGHONG (author)
2015-07-01
Patent
Electronic Resource
English
| European Patent Office | 2015
| European Patent Office | 2015
| European Patent Office | 2015
Metal vacuum heat-insulation plate with edge sealed by seal strip and manufacturing method thereof
| European Patent Office | 2015
| European Patent Office | 2015