Abstract: A predetermined amount of clearance is secured with high accuracy between a core material and core-material-facing surfaces of two buckling-restrained members. In a method of manufacturing a buckling-restrained building material, clearance-maintaining members 18 for securing a predetermined amount of clearance ?t between a core material 2 and core-material-facing surfaces 3d, 3d of two buckling-restrained members 1, 1 sandwiching the core material are disposed between the core-material-facing surfaces. The method comprises a clearance adjustment step for applying a surface treatment for adjusting an amount of the clearance on clearance reference surface portions 3e which are parts of the core-material-facing surface and are in contact with the clearance-maintaining members, and a smoothing step for performing a smoothing process of the core-material-facing surface before the clearance adjustment step.

Abstract: A predetermined amount of clearance is secured with high accuracy between a core material and core-material-facing surfaces of two buckling-restrained members. In a method of manufacturing a buckling-restrained building material, clearance-maintaining members 18 for securing a predetermined amount of clearance ?t between a core material 2 and core-material-facing surfaces 3d, 3d of two buckling-restrained members 1, 1 sandwiching the core material are disposed between the core-material-facing surfaces. The method comprises a clearance adjustment step for applying a surface treatment for adjusting an amount of the clearance on clearance reference surface portions 3e which are parts of the core-material-facing surface and are in contact with the clearance-maintaining members, and a smoothing step for performing a smoothing process of the core-material-facing surface before the clearance adjustment step.

Abstract: Can end disks have annular, curled rims on which a sealing composition is applied as a coat to form airtight seals when the end disks are subsequently attached to can bodies. The sealing composition is sprayed onto the curled rim of each can end disk by an overlying spray nozzle while the disk is being rotated on a rotary rest in a coating machine. For detecting uncoated regions on the curled rim of the can end disk, a photodetector is positioned over the rim of the disk on the rotary rest, with a preassigned angular spacing between the photodetector and the spray nozzle. The detection of uncoated regions is essentially concurrent with the application of the sealing composition. Since the output from the photodetector represents a nonfaulty uncoated region (i.e. a region not yet coated), in addition to a possible faulty uncoated region (i.e.