SANDWICH PANELS Russian patent published in 2013 - IPC F41H5/04 

FIELD: construction.

SUBSTANCE: sandwich panel comprises a composition made of layers serially arranged in direction of damaging action, a layer of steel, a layer, the main component of which is ceramics, made of separate ceramic elements produced by sintering, connected by a highly elastic binder, and a substrate layer from steel or aluminium alloy. The steel layer is made of plates laid at least in two rows with mixing relative to each other. Plates are made with thickness of 2.0-8.0 mm, area of 4.0-64.0 mm², hardness of at least 360 HB, surface roughness of not more than R_a 0.8. The base of the ceramic layer is made of ceramic elements, which are laid at least in two rows, and elements of smaller size are arranged in grooves formed by elements of larger size. Surface layers of the sandwich panel are made of metal sheets or one metal sheet, and second glass magnesium sheet lined at the front side with a decorative coating. Heat insulation layers are made in the form of a layer of mineral wool or alternating layers of mineral wool and foam polyurethane.

EFFECT: higher safety and security of an erected building.

9 cl, 1 dwg