FIELD: process engineering.
SUBSTANCE: invention relates to pipe rolling and can be used at production of rerolling pipes. Sleeves are rolled to rerolling pipes at PRU with Pilger mill, titanium allow stuck to roll body flanges to cut off process wastes, that is, Pilger heads not completely rolled and seed ends. Rerolling pipes are straightened at rolling temperature, turned and bored to commercial or rerolling pipes for further rerolling at cold-pilgering mills. Titanium alloy stuck to roll body flanges is removed by rolling the pipe of given size from carbon steel after rolling of n-amount of titanium-based alloys. Rerolled pipes feature higher surface quality.
EFFECT: stabilised heating, higher efficiency of pipe rolling unit 8-16''.
2 cl, 1 tbl
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RU2511190C1 |
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| METHOD OF FABRICATION OF COMMERCIAL PIPES WITH SIZE 406,4+0,4/-0×14,38+0,28/-0,72 mm FROM TITANIUM ALLOY Gr 29 FOR FURTHER USE IN GEOTHERMAL WELLS CONSTRUCTION | 2013 |
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RU2542132C2 |
| 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 |
| 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 |
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| METHOD OF MANUFACTURE OF COLD DRAWN TRADE PIPES OF 273×10×8700-9500 mm SIZE FROM TITANIUM ALLOYS PT-1M AND PT-7M | 2017 |
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RU2640694C1 |
| METHOD OF PRODUCING OF TUBE STOCK SIZED TO 290X12 MM TO SPECS 8-16 | 2012 |
|
RU2511199C1 |
| PRODUCTION OF 273×9-15 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 | 2012 |
|
RU2530099C2 |
| METHOD OF COLD DRAWN TRADE PIPES MANUFACTURE OF 159x7x10000-11000 mm SIZE FROM TITANIUM ALLOYS PT-1M AND PT-7M | 2016 |
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RU2615927C1 |
| METHOD OF COLD DRAWN TRADE PIPES MANUFACTURE OF 219×9×11700-12800 mm SIZE FROM TITANIUM ALLOYS PT-1M AND PT-7M | 2017 |
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RU2638266C1 |
