Seal construction management method, seal construction management device, seal construction management program and seal construction management system

摘要

A sealing work management method in which a plurality of tightening points are set on a flange sandwiching a gasket (12), and a bolt (6) and a nut (8) are provided at each tightening point. The torque value to be applied to the bolt or the nut is calculated or selected according to the torque, and the torque value is set in the tightening tool (14). To change. Thereby, the axial force of each bolt can reach the target axial force.