FIELD: technological processes.
SUBSTANCE: invention is related to method for production of seamless pipes and may be used in production of pipes in pipe-rolling installations with automatic mills. Method for rolling of pipes in installation with automatic mill includes heating of billet, broaching of cartridge, its rolling in mandrel of automatic mill, rolling in rolling mill and calibration, at the same time front end of cartridge prior to rolling in automatic mill is expanded at the cone mounted on stopper for rolling interruption.
EFFECT: usage of this method of rolling in installation with automatic mill will make it possible to increase resistance of mandrels and to improve quality of inner pipe surface.
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