FIELD: process engineering.
SUBSTANCE: invention relates to metallurgy and may be used for producing large-sized shell rings of VVER-1000 reactor bodies. Solid-forged billet is produced, its length making at least that of shell with allowance for machining stock. Billet wall thickness is at least twice as larger as shell ring wall thickness. Samples for mechanical tests are taken on billet inner surface side, at thickness stock. Sampling is executed at the distance from billet ends not smaller than billet thickness. Specimens of said samples are cut so that their length axes are located at the distance from billet inner surface making at least 1/3T and not over 1/2T where T is billet thickness. Rings are cut for production weld check joint on biller inner side.
EFFECT: higher reliability and longer life.
4 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR MANUFACTURING PRESSURIZED-WATER REACTOR VESSEL | 1990 |
|
RU2069900C1 |
| METHOD TO ASSESS EXTENT OF EMBRITTLEMENT OF MATERIALS OF VVER-1000 REACTOR VESSELS CAUSED BY THERMAL AGEING | 2013 |
|
RU2531342C1 |
| METHOD FOR PREDICTING RESOURCE CAPACITY OF STEEL FOR THE REACTOR BODIES OF THE VVER TYPE | 2017 |
|
RU2654071C1 |
| METHOD OF MAKING WELDED COMPOSITE COLUMN TYPE SAMPLE FOR TESTING CRACK RESISTANCE OF IRRADIATED METAL | 2015 |
|
RU2582626C1 |
| METHOD OF REACTOR SHELL MANUFACTURING | 2008 |
|
RU2392086C1 |
| METHOD FOR RECOVERING PROPERTIES OF MATERIAL OF POWER REACTOR CASINGS | 1993 |
|
RU2081187C1 |
| METHOD OF PRODUCING HOLLOW CYLINDRICAL ARTICLES | 0 |
|
SU1540918A1 |
| WELDING WIRE FOR WELDING VESSELS OF NUCLEAR REACTORS AND OTHER PRESSURE VESSELS IN POWER MACHINE ENGINEERING | 2002 |
|
RU2217284C1 |
| WELDING WIRE FOR AUTOMATIC WELDING OF REACTOR STEELS | 2014 |
|
RU2566243C2 |
| METHOD OF MANUFACTURING OF THIN WALL AXISYMMETRIC WELDED SHELLS WITH END THICKENED RINGS | 2014 |
|
RU2567421C1 |
