FIELD: process engineering.
SUBSTANCE: invention relates to metallurgy. Hollow ingots of ESR steel, grade "10Х9К3В2МФБР-Ш", sized to 620xvn.180-260x2100±50 mm, with diameter-to-wall depth ratio D/S=2.8-4.2, are turned and bored to hollow billets sized to 600xvn.200-280x2100±50 mm D/S ratio=3.0-4.6. Said billets are heated to 1190-1210°C, and pierced-bored at helical rolling mill to 600xvn.415-315x3160-2160 mm sleeves. Sleeves are rolled at Pilger mill with rolling-out µn equal to 5.17-2.48 to 426x21-70x13800-4900 mm pipes. Process wastes are cut off by hot cutting saw. Pipes are straightened, thermally processed and etched, and are subjected to ultrasound control and acceptance.
EFFECT: increased total rolling-out, higher mill efficiency.
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| Title | Year | Author | Number |
|---|---|---|---|
| PRODUCTION OF SEAMLESS HOT-WORKED BOILER AND STEAM LINE 465×25-75 mm PIPES FROM "10Х9К3В2МФБР-Ш"-GRADE REFRACTORY STEEL FOR POWER EQUIPMENT WITH STEAM SUPERCRITICAL PARAMETERS | 2013 |
|
RU2533613C2 |
| METHOD OF PRODUCTION OF SEAMLESS HOT-WORKED BOILER AND STEAM LINE 530×30-75 MM PIPES FROM "10Х9К3В2МФБР-Ш " GRADE REFRACTORY STEEL FOR POWER EQUIPMENT WITH STEAM SUPERCRITICAL PARAMETERS | 2014 |
|
RU2558319C1 |
| PRODUCTION OF SEAMLESS HOT-WORKED BOILER AND STEAM LINE 465×25-75 mm PIPES FROM "10Х9К3В2МФБР-Ш"-GRADE REFRACTORY STEEL FOR POWER EQUIPMENT WITH STEAM SUPERCRITICAL PARAMETERS | 2014 |
|
RU2564497C1 |
| PRODUCTION OF SEAMLESS HOT-WORKED BOILER AND STEAM LINE 465×15-24 mm PIPES FROM "10Х9К3Б2МФБР-Ш"-GRADE REFRACTORY STEEL FOR POWER EQUIPMENT WITH STEAM SUPERCRITICAL PARAMETERS | 2012 |
|
RU2527550C2 |
| 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 |
| METHOD OF PRODUCTION OF 426×15-30 mm SEAMLESS HOT-ROLLED PIPES FOR STEAM BOILERS, STEAM PIPELINES AND MANIFOLDS OF PLANTS WITH CRITICAL AND SUPERCRITICAL STEAM PARAMETERS OF STEEL GRADE "10Х9МФБ-Ш" | 2013 |
|
RU2567427C2 |
| PRODUCTION OF 426×21-40 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 |
|
RU2524459C1 |
| PRODUCTION OF SEAMLESS HOT-ROLLED 530 MM AND 550 MM DIAMETER PIPES AT PRU WITH PILGER MILLS FOR STEAM BOILERS, STEAM LINES AND MANIFOLDS OF UNITS OPERATING WITH HIGH AND SUPERCRITICAL PARAMETERS OF STEAM | 2013 |
|
RU2545952C2 |
| PRODUCTION OF 377×14-19 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 |
|
RU2532873C2 |
| METHOD TO PRODUCE SEAMLESS PIPES WITH SIZE OF 377H14-60 MM FOR STEAM BOILERS, STEAM LINES AND HEADERS OF PLANTS WITH HIGH AND SUPERCRITICAL PARAMETERS OF STEAM FROM STEEL OF GRADE 10H9MFB-SH | 2012 |
|
RU2516161C1 |
