FIELD: metallurgy.
SUBSTANCE: method of producing cold-rolled commercial tubes of 219×9×11700-12800 mm size from titanium alloys PT-1M and PT-7M includes ingot casting in vacuum-arc furnaces, forging ingots in forgings, turning forgings into blanks with size of 500±5×1750±25 mm, drilling a central hole in the blanks with a diameter of 90±5 mm, tempering Al2O3, heating in continuous furnaces in muffle to temperature of 1140-1160°C, piercing the billets of 500±5×90±5×1750±25 mm size in cross-helical rolling mill on a mandrel with 300 mm diameter with stretching ratio μ from 1.39 to 1.46 in cage size 515×inner.315×2400-2590 mm, rolling cages in pilger mill in gage of 351 mm with elongation μ=4.78 and feeding to deformation zone m=18-20 mm in conversion tubes 338×28×10300-11200 mm, cutting technological wastes, dressing conversion tubes, cutting the conversion tube into two tubes of equal length, boring and turning the hot-rolled conversion pipes into billets 325×15×5150-5600 mm, rolling thereof on rolling mills by routes 325×15×5150-5600 - 273×12×7300-7950 - 219×9×11700-12800 mm with relative reduction in wall δm=20.0% δ1m=25.0% and stretch ratios μm=1.49 and μ1m=1.66.
EFFECT: production of tubes of given dimensions.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| 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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| 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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| METHOD FOR PRODUCING CONVERSION TUBES OF LARGE AND MEAN DIAMETERS IN TUBE ROLLING PLANTS WITH PILGER MILLS FROM INGOTS AND BILLETS OF TITANIUM BASE ALLOYS | 2005 |
|
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| PRODUCTION OF 219×8-50 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 |
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| METHOD OF MANUFACTURING SEAMLESS PIPES OF SIZE 377×8-18 mm FOR NUCLEAR POWER FACILITIES OF STEEL OF 08X18H10T-W GRADE | 2016 |
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| 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 |
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RU2537413C2 |
| 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 |
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| PRODUCTION OF "вн.279×36 (351×36)" AND "вн. 346×40" (426×40) mm PIPES FOR NUCLEAR POWER STATIONS FROM "10ГН2МФА" AND "08Х18Н10Т" GRADE STEELS WITH 7 mm INNER CLAD PLY | 2013 |
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| METHOD OF PRODUCTION OF COLD-ROLLED PIPES WITH SIZE VN346(40 MM FROM STEEL OF GRADE "08-18=10T-+" FOR NUCLEAR POWER ENGINEERING FACILITIES | 2013 |
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RU2613822C1 |
