Double-vacuum-layer metal vacuum composite plate and manufacturing method thereof

• Main Author: DAI CHANGHONG
• Format: Patent
• Language: English
• Published: 21.01.2015
• Subjects: BUILDING; FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS; FIXED CONSTRUCTIONS

The invention discloses a double-vacuum-layer metal vacuum composite plate. The double-vacuum-layer metal vacuum composite plate comprises a shell, core plates and a vacuum cavity; the double-vacuum-layer metal vacuum composite plate is characterized in that the shell is made of metal plates or metal composite plates, and the core plates are arranged in the vacuum cavity formed by seal welding of the shell; the at least two core plates provide additional strength for the shell and ensure the smoothness of the shell under the barometric pressure; according to the vacuum cavity, batch automatic welding sealing is carried out in a vacuum furnace under high vacuum and high temperature; a partition plate is arranged in the vacuum cavity; the interior of the vacuum cavity is divided into two vacuum layers through the partition plate; supporting objects are arranged in the vacuum layers, and the supporting objects are independently manufactured or are directly formed on the core plates or the partition plate. A manufacturing method of the double-vacuum-layer metal vacuum composite plate is simple in technology, and the manufactured double-vacuum-layer metal vacuum composite plate can overcome defects of an existing heat preservation plate and a vacuum heat insulation plate. The strength, the heat insulation, noise insulation and fire prevention properties and the decoration function can be improved.