Method of picking a plate roll supported on an annular base. (Machine-translation by Google Translate, not legally binding)

摘要

The method of annealing a roll of sheet supported on an annular base having a central opening for alignment with the eye of the roll and a cover constituting a closure for said roll spaced from the side and top of the roll to form a chamber of annealing having inlet and outlet connections with a cooling device for a gaseous treatment medium, comprising: (a) displacing the oxygen-laden atmosphere of the annealing chamber by an inert gas until the charge has reached a positive charge, (b) passing said inert gas through a heater to heat the gas to an annealing temperature convenient for the metal to be treated, (c) injecting the heated gas under pressure into the eye of the roll to make it flow up through the center of the roll and around the roll and recirculate it with the incoming hot gas until the metal temperature of the roll is balanced, and, (d) replacing the hot gases in the annealing chamber with an inert gas cooled for circulation through the eye of the roll and between the roll and the cover to rapidly cool the roll. (Machine-translation by Google Translate, not legally binding)