Deformation adjustment restoration manner and deformation adjustment restoration device null of cylindrical component such as reaction container for metal production

摘要

PURPOSE: To improve the repeated usability of a cylindrical member by uniformly expanding the deformed part of the cylindrical body towards the outer circumference while controlling a corrective piece to expand the diameter. ;CONSTITUTION: A plural number of the corrective pieces 21 having peripheral circular faces that follow the corrected diameter of the inner surface in the cylindrical body 2 of the cylindrical member 1 are provided successively along the periphery; and an expanding mechanism 11, which is structured to be capable of expanding the diameter radially in engagement with the individual hydraulic cylinder 14 of each corrective piece 21, is prepared. From the upper opening of the cylindrical member 1 that is preheated at a required temperature beforehand, the expanding mechanism 11 is held in suspension inside the cylindrical body 2, and while the corrective pieces 21 are controlled to expand the diameter for the required amount, the pieces are operated horizontally in the state of pressurized contact with the inner periphery of the cylindrical body 2. Then, the deformed part of the cylindrical body 2 is corrected and restored in an uniform expansion towards the outer periphery. Thus, the cylindrical member is easily corrected and restored to the normal condition.;COPYRIGHT: (C)1993,JPO&Japio