RU2013112308A - METHOD FOR PRODUCING SEAMLESS PIPES OF 377 × 14-60 mm SIZE FOR STEAM BOILERS, STEAM PIPELINES, AND MANIFOLD PUMPS FOR INSTALLATIONS WITH HIGH AND SUPERCRITICAL PARAMETERS OF STEAM FROM 10 ELECTRIC SLUG SINES - Google Patents
METHOD FOR PRODUCING SEAMLESS PIPES OF 377 × 14-60 mm SIZE FOR STEAM BOILERS, STEAM PIPELINES, AND MANIFOLD PUMPS FOR INSTALLATIONS WITH HIGH AND SUPERCRITICAL PARAMETERS OF STEAM FROM 10 ELECTRIC SLUG SINES Download PDFInfo
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Abstract
1. Способ производства бесшовных труб размером 377×14-60 мм для паровых котлов, паропроводов и коллекторов установок с высокими и сверхкритическими параметрами пара из слитков электрошлакового переплава стали марки 10Х9МФБ-Ш, включающий выплавку слитков электрошлаковым переплавом, механическую обработку-обточку слитков в слитки-заготовки, сверление в слитках-заготовках центрального отверстия диаметром 100±5 мм, нагрев слитков-заготовок до температуры пластичности, прошивку их в станах поперечно-винтовой прокатки в гильзы, прокатку гильз на пилигримовых станах в товарные трубы размером 377×20-60 мм, термическую обработку, травление, правку, ультразвуковой контроль и приемку труб с допуском по диаметру +1,25/-1,0% и толщине стенки +20/-5,0%, отличающийся тем, что трубы размером 377×14-19 мм производят из слитков-заготовок электрошлакового переплава размером 565×100×1750±50 мм, которые нагревают до температуры 1200-1210°C, прошивают в стане поперечно-винтовой прокатки в гильзы-заготовки размером 580хвн.290×2040-2160 мм на оправке диаметром 275 мм с вытяжкой µ=1,20 и подъемом по диаметру 2,6-2,8%, гильзы-заготовки охлаждают, ремонтируют при необходимости, гильзы-заготовки с холодного посада повторно нагревают до температуры 1210-1220°C, гильзы-заготовки прошивают и раскатывают в стане поперечно-винтовой прокатки в гильзы размером 600хвн.415×2690-2850 мм на оправке диаметром 400 мм с вытяжкой µ=1,32 и подъемом по диаметру 3,4-3,6%, гильзы прокатывают на ТПУ 8-16” с пилигримовыми станами в передельные трубы размером 426×21×11800-12700 и 426×23×10150-11000 мм с вытяжками µ=5,52, µ=5,07 и обжатием по диаметру 29,0%, отрезают технологические отходы пилой горячей резки, правят на шестивалковой правиль1. Method for the production of seamless pipes 377 × 14-60 mm in size for steam boilers, steam pipelines and manifolds of plants with high and supercritical parameters of steam from electroslag remelting ingots of 10Kh9MFB-Sh steel, including ingots melting by electroslag remelting, machining-turning of ingots into ingots - workpieces, drilling in ingots-blanks of a central hole with a diameter of 100 ± 5 mm, heating ingots-blanks to a temperature of plasticity, piercing them in cross-helical rolling mills in sleeves, rolling sleeves on pilgrim mills into commodity pipes 377 × 20-60 mm in size, heat treatment, etching, dressing, ultrasonic inspection and pipe acceptance with a tolerance of + 1.25 / -1.0% in diameter and + 20 / -5.0% in wall thickness characterized in that the pipes 377 × 14-19 mm in size are produced from ingots-blanks of electroslag remelting with a size of 565 × 100 × 1750 ± 50 mm, which are heated to a temperature of 1200-1210 ° C, stitched in a cross-helical rolling mill workpieces with a size of 580хvn. 290 × 2040-2160 mm on a mandrel with a diameter of 275 mm with a hood µ = 1.20 and a rise in diameter of 2.6-2.8%, cooling blanks give, repair if necessary, the billet sleeves from a cold embankment are reheated to a temperature of 1210-1220 ° C, the billet sleeves are stitched and rolled in a cross-screw mill into 600hvn. 415 × 2690-2850 mm sleeves on a mandrel with a diameter of 400 mm with an extractor µ = 1.32 and an increase in diameter of 3.4–3.6%, the sleeves are rolled at 8-16 ”TPU with pilgrim mills into conversion tubes of 426 × 21 × 11800-12700 and 426 × 23 × 10150-11000 mm with hoods µ = 5.52, µ = 5.07 and compression in diameter of 29.0%, technological waste is cut off with a hot cutting saw, corrected with a six-roll straightener
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RU2013112308/02A RU2545924C2 (en) | 2013-03-19 | 2013-03-19 | 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 FROM ESR INGOTS OF "10Х9МФБ-Ш"-GRADE STEEL |
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RU2013112308/02A RU2545924C2 (en) | 2013-03-19 | 2013-03-19 | 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 FROM ESR INGOTS OF "10Х9МФБ-Ш"-GRADE STEEL |
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RU2013112308A true RU2013112308A (en) | 2014-09-27 |
RU2545924C2 RU2545924C2 (en) | 2015-04-10 |
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RU2013112308/02A RU2545924C2 (en) | 2013-03-19 | 2013-03-19 | 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 FROM ESR INGOTS OF "10Х9МФБ-Ш"-GRADE STEEL |
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RU2613811C1 (en) * | 2016-03-22 | 2017-03-21 | Комаров Андрей Ильич | METHOD OF MANUFACTURING SEAMLESS PIPES OF SIZE 377×8-18 mm FOR NUCLEAR POWER FACILITIES OF STEEL OF 08X18H10T-W GRADE |
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JP2726919B2 (en) * | 1988-05-26 | 1998-03-11 | マンネスマン・アクチエンゲゼルシャフト | Method and apparatus for continuously producing strip or sheet steel by continuous casting |
RU2278750C2 (en) * | 2004-07-14 | 2006-06-27 | ОАО "Челябинский трубопрокатный завод" | Method for producing hot rolled conversion large- and mean-diameter tubes of hard-to-form steels and alloys in tube rolling plants with pilger mills |
RU2325960C2 (en) * | 2005-09-22 | 2008-06-10 | Белорусский Национальный Технический Университет | Method of manufacture of commercial products at casting and rolling complex of metallurgical mini plant |
RU2322314C2 (en) * | 2006-01-10 | 2008-04-20 | ОАО "Челябинский трубопрокатный завод" | Method for producing in tube rolling plants with pilger mills seamless hot-deformed large- and mean-diameter tubes for steam boilers, steam conduits and manifolds of plants with high and super-critical parameters of steam from electroslag refining ingots or continuously cast billets |
RU2386501C2 (en) * | 2007-12-24 | 2010-04-20 | ОАО "Челябинский трубопрокатный завод" | Method for production of seamless hot-rolled casing pipes with diametre of 508 mm at tube-rolling plant 8-16" with pilger mills in ordinary and cold-resistant versions |
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