STEEL PANEL-PLATE HOLDER Russian patent published in 2008 - IPC B21D13/00 B64C3/26 

FIELD: technological processes.

SUBSTANCE: invention pertains to objects made from ridged panels. The steel-plate has two ridged sheets, made from steel with given mechanical properties. One sheet has lengthwise through ridges, separated on the width of the sheet by flat inter-ridge regions, while the other sheet has transverse closed ridges and flat lateral regions. The top of all ridges are directed outside the plate holder. The side edges of the sheet with lengthwise ridges are folded by 180° and reach the folded part of the side edges of the sheet with transverse ridges, thereby forming side edges of the plate holder. Better strength properties are attained.

EFFECT: better strength properties of objects made from the sheet ridged panels.

5 cl, 1 dwg, 1 ex