| 摘要 |
There proposed a method for producing expanded metal profiles, used for supporting plasterboard or for forming shelves, according to the method a metal strip of width less than the development of the profile to be produced is subjected to the following operations: - forming longitudinal slits (12, 14) in at least that longitudinal band which is to form the central web of the profile, - bending the edges of the slits (12, 14), - profiling said strip, - transversely stretching that band containing the slits, - pressing areas of said central web in correspondence with said stretched band to displace them external to the plane of said web, characterised by subjecting the bent edges to drawing to obtain radiused edging having the tangent to the free edge forming an angle (&bgr;) not less than 90° to the surface of the strip. The invention also relates to a metal profiles obtainable by the method. |
