FIELD: process engineering.
SUBSTANCE: invention relates to pipe rolling. Solid or hollow ESR ingots-billets from alloyed steels or alloys are heated to ductility temperature. They are pierced at helical rolling stand. For rolling of produced sleeves, backing rings of carbon steels and conical sections are produced to design sizes. Sleeves and rider rings are heated. Fitted on mandrel are mandrel ring and backing wing with its cylindrical section to mandrel ring, and sleeve. Produced composed sleeve is rolled to re-rolled pipe with complete fed of Pilger head to alloy-free metal.
EFFECT: complete rolling of Pilger heads at ruled out seizure of mandrel in pipe and pipe rejection.
4 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PRODUCTION OF COMMERCIAL AND REROLLED PIPES AT PRU WITH PILGER MILLS FROM FORGED OR HOLLOWS ESR INGOTS-BILLETS FROM ALLOYED HARDLY-DEFORMED STEELS AND ALLOYS AND TITANIUM-BASED STEELS | 2013 |
|
RU2542156C2 |
| 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 FOR PRODUCING BY ELECTROLAG REFINING INGOT-BLANKS OF HARD-TO-FORM STEELS AND ALLOYS AND FOR ROLLING OF THEM COMMERCIAL TUBES OF LARGE AND MEAN DIAMETERS IN TUBE ROLLING PLANTS WITH PILGER MILLS AND CONVERSION TUBES FOR FURTHER REROLLING IN TUBE COLD ROLLING MILLS | 2006 |
|
RU2322317C2 |
| METHOD FOR PRODUCTION OF BAR-INGOTS BY ELECTROSLAG REMELT FROM ALLOYED AND LOW-ALLOYED STEEL GRADES, ROLLING OF COMMERCIAL AND CONVERSION PIPES OF LARGE AND MEDIUM DIAMETERS ON TUBE-ROLLING PLANTS WITH PILGER ROLLING MILL | 2006 |
|
RU2346765C2 |
| 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 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 |
| PRODUCTION OF 465×75 MM SEAMLESS HOT-ROLLED PIPES FOR STEAM BOILERS, STEAM PIPELINES AND MANIFOLDS OF PLANTS WITH HIGH AND SUPERHIGH STEAM PARAMETERS FROM ESR INGOTS OF "10Х9МФБ-Ш"-GRADE STEEL | 2012 |
|
RU2527587C2 |
| PRODUCTION OF LONG-SIZED 265×22×13000±300 AND 285×25×11750±50 mm-TUBE STOCK FROM HOLLOW ESR INGOTS-BILLETS OF "08Х10Н20Т2" AND "08Х10Н16Т2" GRATE STEEL FOR SUBMARINE PERISCOPE DRIVES | 2012 |
|
RU2527591C2 |
| PRODUCTION OF 426×90 MM SEAMLESS HOT-ROLLED PIPES FOR STEAM BOILERS, STEAM PIPELINES AND MANIFOLDS OF PLANTS WITH HIGH AND SUPERHIGH STEAM PARAMETERS OF "10Х9МФБ-Ш"-GRADE STEEL AT PRU 8-16'' WITH PILGER MILLS | 2013 |
|
RU2537639C1 |
| BIMETAL BLANK FROM ("10ГН2МФА+08Х18Н10Т") GRADE STEELS AND ITS FABRICATION FOR PRODUCTION OF COLD-ROLLED BIMETAL OUT 279×36- AND OUT 346×40 mm SIZE PIPES WITH INNER CLAD 7±2 mm DEEP PLY FROM "08Х18Н10Т" GRADE STEEL FOR NUCLEAR POWER STRUCTURES | 2013 |
|
RU2554249C2 |
