SET OF PROFILES FOR FABRICATION OF SECTIONAL METAL PROFILE, PROCEDURE FOR FABRICATION OF SECTIONAL METAL PROFILE, PROCEDURE FOR FABRICATION OF BENT SECTIONAL METAL PROFILE AND SECTIONAL METAL PROFILE PRODUCED BY THESE PROCEDURES

摘要

FIELD: metallurgy.;SUBSTANCE: profiles are made of metal with similar cross section along whole length. Also, a connecting profile has lengthwise plane, lengthwise fixing lugs and hook ends for them. The first and second connected profiles are pushed on the connecting profile to move edges in slots formed with hook ends correspondingly, while recesses correspondingly coincide with lugs. Further, screw elements are started into open ends of a lengthwise cavity and are screwed inside it. Also, there occurs break of ends of the connecting profile into parts, while edges of fixing lugs are tightly closed with internal surface of the hook ends. Connected and connecting profiles are bent on a mandrel for fabrication of a bent sectional profile before assembly.;EFFECT: upgraded quality of sectional profile due to prevention of metal profiles swaying and slipping one relative to another, also avoiding disassembly of sectional profile upon assembly.;9 cl, 1 dwg