FIELD: metallurgy.
SUBSTANCE: ingots of low-ductile steel "04Х14Т5Р2Ф-Ш" with boron content of 2.0 to 3.0% and 480×1775±25 mm size are cast by electroslag remelting. External ingot surface is ground to remove casting flaws to the size of 465±5×1775±25 mm. A central through bore of 100±5.0 mm diameter is drilled. Ingot blanks are heated to 1040-1050°C and pierced by a rotary piercer to form hollow shell of 450×int.290×2890-3100 mm size with diametrical cobbing Δ from 2.17 to 4.26% and rolling-out µlng from 1.65 to 1.73. Shells are rolled at pilger mill to form pipe stock sections of 284×11×25500-27500 mm size with rolling-out µp=9.86 and diametrical cobbing Δ=36.2%. Pipe sections are cut into pipe pieces of multiple 10250-11000 mm length and 5000-5500 mm remainder, and are straightened. Pipe pieces undergo mechanical processing, namely they are counterbored and turned to form cylindrical pipe blanks of 278.5±1.8×52+1.5/-1.0×5000-5500 mm size and hot-roll formed into hexagonal pipe blanks of 252.6±1.8×5+1.5/-1.0×4300+80/-30 mm size.
EFFECT: reduced metal consumption and rack weight, along with increased weight of spent nuclear fuel and enhanced rack reliability.
3 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PROCESS PIPES PRODUCTION OF SIZE 284×11 mm OUT OF SOLID BLANK INGOTS TO MANUFACTURE HEX BLANK PIPES WITH TURNKEY SIZE 252,6×5,0+1,5/-1,0×4300+80/-30 mm FOR TIGHT STORAGE AND TRANSPORTATION OF SPENT NUCLEAR FUEL | 2013 |
|
RU2547363C1 |
| PRODUCTION OF "TURNKEY" 255×5,0+1,5/-1,0×4300+80/-30 mm HEXAGONAL PIPE-BILLETS | 2013 |
|
RU2547760C1 |
| 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 252,6±1,8×5,0+1,5/-1,0×4300+80/-30 mm HEXAGONAL "TURNKEY" PIPE-BILLETS FOR COMPACTED STORAGE AND TRANSPORTATION OF USED NUCLEAR FUEL | 2013 |
|
RU2557388C2 |
| 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 |
| METHOD OF PRODUCING OF TUBE STOCK SIZED TO 290X12 MM TO SPECS 8-16 | 2012 |
|
RU2511199C1 |
| PRODUCTION OF REROLLED 290×12 mm PIPES 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 FABRICATION OF HEXAGONAL TURNKEY PIPE BILLETS SIZED TO 257+2,0/-3,0×6,0+2,0/-1,0×4300+80/-30 mm FOR RACKS OF NUCLEAR POWER STATION USED FUEL COOLING POND | 2013 |
|
RU2550032C2 |
| PRODUCTION OF REROLLED 292×12 mm PIPES AT PRU 8-16" WITH PILGER MILLS FROM ESR INGOTS-BILLETS OF LOW-DUCTILITY "04Х14ТЗР1Ф-Ш"- AND "04Х14Т5Р2Ф-Ш"-GRADE STEELS WITH BORON CONTENT OF 1,3-3,5% FOR FABRICATION OF HEXAGONAL TURNKEY PIPE BILLETS SIZED TO 257+2,0/-3,0×6+2,0/-1,0×4300+80/-30 mm FOR STORAGE AT RACKS OF NUCLEAR POWER STATION USED FUEL COOLING POND AND ITS TRANSPORTATION | 2013 |
|
RU2550033C2 |
| METHOD TO MANUFACTURE HEXAHEDRAL STOCK PIPES WITH FLAT-TO-FLAT DIMENSION 255×5+1,5/-1,0×4300+80/-30 mm FOR STORAGE AND TRANSPORTATION OF SPENT NUCLEAR FUEL | 2013 |
|
RU2547055C1 |
| METHOD OF MAKING 257+2,0/-3,0×6,0+2,0/-1,0×4300+80/-30 mm-HEXAGONAL TUBE BILLETS | 2011 |
|
RU2470723C1 |
