METHOD OF PRODUCTION OF CORRUGATED PIPE, PREFERABLY FLAME PIPE, TECHNOLOGICAL COMPLEX FOR PRODUCTION OF CORRUGATED PIPES, PREFERABLY FLAME ONES, MACHINE FOR CORRUGATING OF TUBULAR BILLETS, PREFERABLY IN PRODUCTION OF FLAME PIPES, DEVICE FOR LOCAL HEATING WITH HIGH FREQUENCY CURRENTS OF PIPE DURING ROLLING OF ITS FLUTES, CORRUGATED PIPE, PREFERABLY FLAME ONE Russian patent published in 2008 - IPC B21D15/06 B21D51/12 B21D37/16 H05B6/40 F22B7/20 F22B37/06 

FIELD: technological processes.

SUBSTANCE: tubular billet is installed with the possibility of its rotation by rotary-thrust mechanism, which is included in composition of technological complex for production of corrugated pipes. Alternate local heating of billet is performed in the area of every flute production. For that purpose device is used with at least one annular inductor. Width of inductor makes 0.5...1.0 of pipe flute pitch value. In order to make flutes of larger depth, inductor is used with larger width. Every flute is formed by rolling and further calibration of its cavity, which is performed by profiled roller of flute-rolling mechanism. During rolling together with billet bending it is settled along its longitudinal axis by means of pressing mechanism.

EFFECT: efficiency is increased as well as manufacturability of corrugated pipes production, power intensity and laboriousness are reduced with simultaneous increase of ecological compatibility and quality of manufactured products.

30 cl, 7 dwg, 1 tbl