FIELD: metallurgy.
SUBSTANCE: hollow ingots of electroslag remelting are turned and bored into hollow cakes with the size of 660xin490×3200±50 mm. They are heated to the temperature of 1180-1190°C and rolled on TPU 8-16" pipe rolling units with pilger mills into process pipes with the size of 550×45×5300-5500 and 550×48×5000-5200 mm with drawings µ=2.10, µ=1.99 respectively and by setting as to diameter of 16.7%, with supplies of shells to deformation zone m=20-22 mm. Cutting of process wastes by a hot cutting saw, straightening on a six-roll straightening machine, heat treatment, repeated straightening on the six-roll straightening machine with measurement of overall curvature throughout the length of pipes of not more than 5.0 mm is performed. Pipes are transported to an area for treatment of forgings and pipes of special purpose. Pipes with the size of 550×45×5500-5800 mm are bored and turned into merchantable pipes with the size of 530×25-28×5300-5500 mm. Pipes with the size of 550×48×5000-5200 mm are bored into merchantable pipes with the size of 530×28-30×5000-5200 mm.
EFFECT: reduction of metal consumption coefficient and increase of capacity of a pilger unit.
2 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| MANUFACTURING METHOD OF SEAMLESS TUBES WITH DIMENSIONS OF 530×25-30 mm FOR STEAM BOILERS, STEAM LINES AND HEADERS OF PLANTS WITH HIGH AND SUPERCRITICAL STEAM PARAMETERS FROM INGOTS OF ELECTROSLAG REMELTING PROCESS FROM STEEL GRADE "10Х9МФБ-Ш" | 2013 |
|
RU2542053C1 |
| PRODUCTION OF 550×25-60 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 | 2013 |
|
RU2523375C1 |
| PRODUCTION OF SEAMLESS HOT-ROLLED PIPES SIZED TO 610×28-32 mm FROM "15Х1М1Ф"- AND "10Х9МФБ-Ш"-GRADE STEELS AT PRU 8-16'' WITH PILGER MILLS FOR PIPELINES OF BOILER UNIT STEAM INTERMEDIATE OVERHEATING WITH HIGHER MECHANICAL PROPERTIES | 2012 |
|
RU2523394C1 |
| PRODUCTION OF SEAMLESS HOT-ROLLED PIPES SIZED TO 630×28-32×4800-5500 mm FROM "15Х1М1Ф" AND "10Х9МФБ-Ш"-GRADE STEELS AT PRU 8-16" WITH PILGER MILLS FOR PIPELINES OF BOILER UNIT STEAM INTERMEDIATE OVERHEATING WITH HIGHER MECHANICAL PROPERTIES | 2012 |
|
RU2530090C2 |
| PRODUCTION OF 550×25-30 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 | 2014 |
|
RU2570152C2 |
| PRODUCTION OF 550×25-30 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 |
|
RU2527560C2 |
| PRODUCTION OF 530X25-60 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 |
|
RU2514240C1 |
| PRODUCTION OF SEAMLESS HOT-ROLLED PIPES SIZED TO 610×28-32×4700-5400 mm FROM "15Х1М1Ф"- AND "10Х9МФБ"-GRADE STEELS AT PRU 8-16'' WITH PILGER MILLS FOR PIPELINES OF BOILER UNIT STEAM INTERMEDIATE OVERHEATING WITH HIGHER MECHANICAL PROPERTIES | 2012 |
|
RU2522514C1 |
| PRODUCTION OF SEAMLESS HOT-ROLLED PIPES SIZED TO 610×28-32×5300-6000 mm FROM "15Х1М1Ф"- AND "10Х9МФБ-Ш"-GRADE STEELS FOR PIPELINES OF BOILER UNIT STEAM INTERMEDIATE OVERHEATING | 2012 |
|
RU2527523C2 |
| PRODUCTION SEAMLESS HOT-ROLLED 550×46-60 mm SIZE PIPES FOR BOILERS, STEAM LINES AND MANIFOLDS OF PLANTS WITH HIGH AND SUPERCRITICAL STEAM PARAMETERS MADE OF "10Х9МФБ-Ш"-GRADE STEEL | 2014 |
|
RU2570151C2 |
