| 摘要 |
PURPOSE:To subject a tubular test member to a test for stress corrosion cracking in an as-worked state in the manufacture by welding the opening of said member to the opening of a test cylinder provided with a pressure conduit pipe, sealing the other opening hermetically, containing the assembly in a vessel and forcing pressurizing corrosive liquid therein. CONSTITUTION:A blind plate 2 is mounted to the end part 1b of a member 1 consisting of a pipe material 1 to seal said part hermetically, and the member is contained in a test cylinder 3 in the stage of testing said member. The opening end 3a of the cylinder 3 and the end part 1a of the member 1 are joined airtightly by welding 4. Many pieces of such cylinders 3 are manufactured and are placed on the rack in a vessel 6. A pressure conduit pipe 5 is drawn out from each draw-out pipe 10. When corrosive liquid is forced into the vessel through an introducing pipe after a cover 6b is closed, the liquid is filled in the vessel 6 and in the member 1 as well. The outside surface of the member 1 is maintained under the atmospheric pressure through the pipe 5. When a damage arises in the member 1 owing to corrosion, the corrosive liquid penetrates in the member and the pressure is transmitted through the pipe 5 to the outside and is detected with a pressure gage. Thus the test for stress corrosion is made possible in the as- worked state in the manufacture. |
