FIELD: metallurgy.
SUBSTANCE: invention relates to process for production of hexagonal pipe workpieces with flat-to-flat dimension of 257+2/-3×6+2/-1×4300+80/-30 mm from steel with boron contains from 1.3 to 3.0 % for transport and compact storage on racks of fuel assamblies new modifications with high enrichment and high uranium consumption. Method includes casting of solid and hollow ingot by electroslag remelting, machining of solid and hollow ingots into ingots-billets, drilling a center hole with diameter of 100±5 mm into solid ingots-billets, heating of drilled and hollow ingots-billets to the plasticity temperature, piercing of drilled ingots-billets at helical rolling mill to sleeves, rolling of sleeves and hollow ingots-billets at PRM with Pilger mills to re-rolled pipes, cutting of pipes to shells of 290×12×5250-5400 mm size, boring and turning of shells to round re-rolled pipes of 284.8+2/-3×6+2/-1×5250-5500 mm and hot-roll formed into hexagonal pipe workpieces with flat-to-flat dimension of 257+2/-3×6+2/-1×4300+80/-30 mm, wherein rolling of hexagonal pipe workpieces is carried out with edges deflected inside.
EFFECT: nuclear safety of racks without losing their capacity.
2 cl, 1 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| HEXAGON STEEL PIPE-BILLET WITH BORON CONTENT OF 1,3 TO 3,0% AND METHOD OF ITS MANUFACTURE | 2016 |
|
RU2618687C1 |
| PRODUCTION OF HEXAGONAL PIPE BILLETS FROM LOW-PLASTICITY STEEL WITH BORON CONTENT OF 1,3-3,5% | 2013 |
|
RU2541213C2 |
| PRODUCTION OF HEXAGONAL PIPE BILLETS FOR COMPACT STORAGE AND TRANSPORTATION OF USED NUCLEAR FUEL WITH BORON CONTENT OF 1,3-3,5% | 2013 |
|
RU2536023C2 |
| PRODUCTION OF HEXAGONAL PIPE BILLETS FOR COMPACT STORAGE AND TRANSPORTATION OF USED NUCLEAR FUEL FROM LOW-DUCTILE STEEL WITH BORON CONTENT OF 1,3-3,5% | 2013 |
|
RU2541212C2 |
| PRODUCTION OF 255×5+1,5/-1,0×4300+80/-30 mm HEXAGONAL "TURNKEY" PIPE-BILLETS FOR COMPACTED STORAGE AND TRANSPORTATION OF USED NUCLEAR FUEL | 2013 |
|
RU2547613C1 |
| PRODUCTION OF "TURNKEY" 255×5,0+1,5/-1,0×4300+80/-30 mm HEXAGONAL PIPE-BILLETS | 2013 |
|
RU2547760C1 |
| MANUFACTURING METHOD OF HEXAGONAL PIPE SHELLS WITH FLAT-TO-FLAT DIMENSION OF 252,6±1,8×5+1,5/-1,0×4300+80/-30 mm FOR STORAGE AND TRANSPORTATION OF SPENT NUCLEAR FUEL | 2013 |
|
RU2545954C1 |
| PRODUCTION OF 255±2,0×5,0+1,5/-1,0×4300+80/-30 mm HEXAGONAL "TURNKEY" PIPE-BILLETS FOR COMPACTED STORAGE AND TRANSPORTATION OF USED NUCLEAR FUEL | 2013 |
|
RU2557383C2 |
| PRODUCTION OF SEAMLESS REROLLED PIPES SIZED TO 289×11,5×26000-27000 AND 290×12×26000-27500 mm AT PRU 8-16" WITH PILGER MILLS FROM ESR INGOTS-BILLETS OF LOW-DUCTILITY "04Х14Т3Р1Ф-Ш" AND "04Х14Т5Р2Ф-Ш"-GRADE STEELS WITH BORON CONTENT OF 1,3-3,5% FOR PRODUCTION OF HEXAGONAL PIPES-BILLETS SIZED TO TURNKEY BASIS OF 257+2,0/-3,0×6,0+2,0/-1,0×4300+80/-30 mm FOR COMPACT STORAGE IN NUCLEAR POWER STATION COOLING POND AND TRANSPORTATION OF USED NUCLEAR FUEL | 2012 |
|
RU2530085C2 |
| METHOD OF HEXAGONAL PIPE BLANC PRODUCTION OF TURNKEY SIZE 252,6×5+1,5/-1,0×4300+80/-30 mm FOR COMPACT STORAGE AND TRANSPORTATION OF SPENT NUCLEAR FUEL | 2013 |
|
RU2542054C1 |
