FIELD: process engineering.
SUBSTANCE: invention relates to production of hexagonal pipe billets. This process comprises rolling at Pilger mill of ESR hollow bimetal ingots with bottom and shrinkage parts from ductile carbon grades of steel. Height of said ingots makes 0.06-0.07 and 0.08-0.10 of their total height that make the seed ends and Pilger heads. Said ingots are bored and turned on bottom side to hollow ingots-billets of specified sizes. The latter are heated and rerolled to pipe sets of specified sizes at mandrels with rolling-out µ of 10.13-10.86 and diameter reduction Δ of 36.2-37.6%. Pilger heads and seed ends are removed to obtain pipe sections from steel of ductile carbon grades, 500-700 mm in length. Then said pipe sets are cut by hot-cutting saw to pipe lengths and straightened. These are shaped to hexagonal ingots-billets of preset sizes.
EFFECT: lower metal input and lower production costs.
3 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| 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 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 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 |
| METHOD OF MAKING 290×12 mm-TUBE STOCK FROM OF SOLID INGOTS FROM ELECTROSLAG REMELTING OF 04×14T5P2"Ф-Ш" -GRADE LOW-DUCTILE STEEL | 2011 |
|
RU2470725C1 |
| METHOD OF MAKING 257+2,0/-3,0×6,0+2,0/-1,0×4300+80/-30 mm-HEXAGONAL TUBE BILLETS FOR PACKED STORAGE AND TRANSPORTATION OF USED NUCLEAR FUEL | 2011 |
|
RU2470726C1 |
| 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 |
| 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 |
| METHOD FOR PRODUCING INGOT-BLANKS BY ELECTROSLAG REFINING OF LOW-DUCTILE STEEL CONTAINING BORON AND FOR ROLLING TUBES OF SUCH BLANKS IN TUBE ROLLING PLANTS WITH PILGER MILLS FOR FURTHER CONVERSION OF TUBES TO HEXAHEDRAL TUBE-BLANKS FOR COMPACTED STORAGE OF WASTE NUCLEAR FUEL | 2006 |
|
RU2317865C2 |
| METHOD OF PRODUCING OF TUBE STOCK SIZED TO 290X12 MM TO SPECS 8-16 | 2012 |
|
RU2511199C1 |
| 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 |
