FIELD: process engineering.
SUBSTANCE: invention relates to production of 290x12 mm tube stock. Proposed method comprises casting the ingots by electric slag remelting. Produced ingots are cut over outer surface to remove casting flaws to billets. Through 100±5.0 mm-dia central bore is made and billets are heated to yield point. First, said ingots are pierced at helical rolling stand to make sleeves. Said sleeves are rolled at Pilger mill with 480xin.295×250-300 mm carbon jar washers to tube stocks to be drawn and reduced in diameter. Hot cutting saw is used to remove process wastes in the form of Pilger heads and seed ends. Socks are cut into two equal-length tubes to be straightened at six-roll straightener and machined to commercial hexagonal tube billets sized to 257+2.0/-3.0×6.0+2.0/-1.0×4300+80/-30 mm.
EFFECT: decreased number of flaws, lower metal input.
3 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| 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 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 |
| 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 |
| 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 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 |
| 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 STEEL PIPES OF SIZE 290X11-12 MM USING PIPE ROLLING PLANT "ТПУ" 8-16" WITH PILGRIM MILLS FROM LOW-DUCTILE STEELS OF GRADES 04X14T3P1"Ф-Ш" AND 04X14T5P2"Ф-Ш" | 2012 |
|
RU2502571C1 |
| METHOD OF MAKING HEXAGONAL TUBE BILLETS SIZED TO 257+2,0/-3,0×6,0+2,0/-1,0×4300+80/-30 mm INTENDED FOR STORAGE AND TRANSPORTATION OF SPENT NUCLEAR FUEL | 2011 |
|
RU2470724C1 |
| 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 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 |
