FIELD: process engineering.
SUBSTANCE: invention relates to metallurgy. This process comprises ESR casting of ingots to be turned and bore central; hole therein. Said ingots-billets are heated to ductility temperature. Theses are pierced at helical rolling mills to sleeves with deformation of metal along the position of crystals by feed said ingots to the mill by their head parts and with diameter reduction of 8-16%. Thereafter, said sleeves are rolled to pipes, gaged, heat-treated, etched, straightened, subjected to ultrasound control and acceptance.
EFFECT: mechanical properties, geometrical sizes and surface quality higher than standing specifications, lower metal input, reduced wall depth allowance margin.
3 cl, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| PRODUCTION OF 245×10-15 mm SEAMLESS HOT-ROLLED PIPES FOR STEAM BOILERS, STEAM PIPELINES AND MANIFOLDS OF PLANTS WITH HIGH AND SUPERHIGH STEAM PARAMETERS FROM ESR INGOTS OF "10Х9МБФ-Ш"-GRADE STEEL | 2012 |
|
RU2527580C2 |
| 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 |
| PRODUCTION OF 273×9-60 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 |
|
RU2537413C2 |
| PRODUCTION OF 299×10-60 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 | 2012 |
|
RU2522513C1 |
| MANUFACTURING METHOD OF SEAMLESS PIPES WITH DIMENSIONS OF 299×10-13 mm FOR STEAM BOILERS, STEAM LINES AND HEADERS OF PLANTS WITH HIGH AND SUPERCRITICAL STEAM PARAMETERS FROM INGOTS OF ELECTROSLAG REMELTING OF STEEL GRADE "10Х9МФБ-Ш" | 2013 |
|
RU2545963C2 |
| PRODUCTION OF 325×13-15 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 |
|
RU2534593C2 |
| PRODUCTION OF 377×14-60 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 | 2012 |
|
RU2537682C2 |
| PRODUCTION OF 325×13-15 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 |
|
RU2523376C1 |
| PRODUCTION OF 299×10-60 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 |
|
RU2522512C1 |
| METHOD FOR PRODUCTION OF WELDLESS DRAWN PIPES WITH SIZE OF 299×10-13 mm FOR STEAM BOILERS, PIPELINES AND HEADERS OF PLANTS WITH HIGH AND SUPERCRITICAL PARAMETERS OF STEAM FROM STEEL OF GRADE OF "10Х9МФБ-Ш" | 2013 |
|
RU2547360C2 |
