FIELD: process engineering.
SUBSTANCE: invention relates to metallurgy, particularly to pipe production. Proposed process comprises production by ESR process of ingots sized to 500×1750±50 mm. Said ingots are turned to ingots-billets wised to 485±5×1750±50 mm, their weight making 2205-2440 kg. 100±5 mm diameter central bore is drilled therein. Ingots-billets in weight of 2106-2185 kg are grouped to one set. Ingots-billets in weight of 2190-2335 kg are grouped to another set. Said billets are heated to ductility temperature 1060-1090°C and pierced at helical rolling mill to get the sleeve billets Said sleeves are rolled to rerolled pipes at mandrels Carbon jar washer is fitted on said mandrel Said mandrel is fitted in the sleeve to produce the seed by rolling Sleeve with mandrel is returned to initial position to move the rolls together and to roll the front end.
EFFECT: preset sizes of rerolled pipes from ESR, higher efficiency of PRU 8-16" and decreased metal input.
3 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING OF TUBE STOCK SIZED TO 290X12 MM TO SPECS 8-16 | 2012 |
|
RU2511199C1 |
| 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 |
| 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 |
| 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 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 "TURNKEY" 255×5,0+1,5/-1,0×4300+80/-30 mm HEXAGONAL PIPE-BILLETS | 2013 |
|
RU2547760C1 |
