| 摘要 |
A method of producing bidimensionally curved, thin-walled tank end walls (4, 5, 9) on a disc-shaped tool (1), involving the following consecutive operations: placing a reinforcing ring (4) of angled section around the periphery of the tool; welding two flat plates (5) into position on the ring to either side of the tool; creating positive pressure between the plates for the purpose of forming them simultaneously into domes; splitting the reinforcing ring peripherally so as to release the two end elements; and welding a cylindrical tank casing ring (9) to the splitted reinforcing ring. |
