MX345041B - Metodo de produccion para barra de acero redonda para tuberia sin costuras que comprende alta aleacion de cr-ni, y metodo de produccion para tuberia sin costuras utilizando la barra de acero redonda. - Google Patents

Metodo de produccion para barra de acero redonda para tuberia sin costuras que comprende alta aleacion de cr-ni, y metodo de produccion para tuberia sin costuras utilizando la barra de acero redonda.

Info

Publication number
MX345041B
MX345041B MX2013007042A MX2013007042A MX345041B MX 345041 B MX345041 B MX 345041B MX 2013007042 A MX2013007042 A MX 2013007042A MX 2013007042 A MX2013007042 A MX 2013007042A MX 345041 B MX345041 B MX 345041B
Authority
MX
Mexico
Prior art keywords
steel bar
round steel
seamless pipe
production method
rolling
Prior art date
Application number
MX2013007042A
Other languages
English (en)
Other versions
MX2013007042A (es
Inventor
Hirase Naoya
Satou Takanori
Original Assignee
Nippon Steel & Sumitomo Metal Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel & Sumitomo Metal Corp filed Critical Nippon Steel & Sumitomo Metal Corp
Publication of MX2013007042A publication Critical patent/MX2013007042A/es
Publication of MX345041B publication Critical patent/MX345041B/es

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/02Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/02Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • B21B1/04Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing in a continuous process
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/02Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • B21B1/026Rolling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B19/00Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B21B19/04Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B23/00Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0075Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rods of limited length
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0081Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C19/00Alloys based on nickel or cobalt
    • C22C19/03Alloys based on nickel or cobalt based on nickel
    • C22C19/05Alloys based on nickel or cobalt based on nickel with chromium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C19/00Alloys based on nickel or cobalt
    • C22C19/03Alloys based on nickel or cobalt based on nickel
    • C22C19/05Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/051Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
    • C22C19/055Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 20% but less than 30%
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C30/00Alloys containing less than 50% by weight of each constituent
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/001Ferrous alloys, e.g. steel alloys containing N
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/002Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/10Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/02Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • B21B2001/022Blooms or billets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B2261/00Product parameters
    • B21B2261/02Transverse dimensions
    • B21B2261/06Width
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B2261/00Product parameters
    • B21B2261/02Transverse dimensions
    • B21B2261/08Diameter
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B2261/00Product parameters
    • B21B2261/02Transverse dimensions
    • B21B2261/10Cross-sectional area
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B3/00Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02Rolling special iron alloys, e.g. stainless steel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/006Continuous casting of metals, i.e. casting in indefinite lengths of tubes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/4998Combined manufacture including applying or shaping of fluent material
    • Y10T29/49988Metal casting
    • Y10T29/49991Combined with rolling

Abstract

Cuando se produce una barra de acero redonda que comprende una alta aleación que contiene Cr de 20 a 30% en masa, Ni de 30 a 50% en masa, y al menos un tipo de Mo y W que tiene 1.5% en masa en términos de Mo+0.5W, y en la cual una losa de fundición continua que tiene una sección transversal rectangular es sometida a laminado por desbastes planos y el diámetro del material de partida de la tubería sin costuras es de 150 a 400 mm, el laminado por desbastes planos se lleva a cabo bajo una condición que cumple la relación 1.3=H/D=1.8, en donde H (mm) representa la longitud del lado corto de la sección transversal de la losa y D (mm) representa el diámetro de la barra de acero redonda. Esto puede conducir a la producción en la cual se impide que el extremo de la tubería se fisure y la tubería sin costuras pueda producirse en un buen rendimiento, particularmente en la fase de laminación por perforación, cuando la tubería sin costuras que comprende alta aleación de Cr-Ni se produce al realizar la laminación por perforación en la barra de acero redonda para moldearla en una tubería hueca, realizar un estirado por laminación en la tubería hueca y además realizar una laminación con un diámetro constante en la tubería hueca resultante.
MX2013007042A 2010-12-22 2011-12-20 Metodo de produccion para barra de acero redonda para tuberia sin costuras que comprende alta aleacion de cr-ni, y metodo de produccion para tuberia sin costuras utilizando la barra de acero redonda. MX345041B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010285738 2010-12-22
PCT/JP2011/007098 WO2012086179A1 (ja) 2010-12-22 2011-12-20 高Cr-高Ni合金からなる継目無管用丸鋼片の製造方法、およびその丸鋼片を用いた継目無管の製造方法

Publications (2)

Publication Number Publication Date
MX2013007042A MX2013007042A (es) 2014-01-31
MX345041B true MX345041B (es) 2017-01-16

Family

ID=46313471

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2013007042A MX345041B (es) 2010-12-22 2011-12-20 Metodo de produccion para barra de acero redonda para tuberia sin costuras que comprende alta aleacion de cr-ni, y metodo de produccion para tuberia sin costuras utilizando la barra de acero redonda.

Country Status (8)

Country Link
US (1) US9468959B2 (es)
EP (1) EP2656931B1 (es)
JP (1) JP5056990B2 (es)
KR (1) KR101516104B1 (es)
CN (1) CN103269808B (es)
BR (1) BR112013014151B8 (es)
MX (1) MX345041B (es)
WO (1) WO2012086179A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5682602B2 (ja) * 2012-08-09 2015-03-11 新日鐵住金株式会社 内面品質に優れたNi含有高合金丸ビレットの製造方法
CA2799372C (en) * 2012-12-20 2019-08-20 Nova Chemicals Corporation Transfer line exchanger
CN105546228A (zh) * 2016-01-20 2016-05-04 浙江海洋学院 一种船舶用无缝钢管及其制备方法
CN114774782B (zh) * 2022-03-29 2023-07-14 中钢集团邢台机械轧辊有限公司 一种穿孔辊及其制备方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61140301A (ja) 1984-12-12 1986-06-27 Kawasaki Steel Corp 傾斜圧延方式による、継目無ステンレス鋼管用丸ビレットの製造方法
JPH01293909A (ja) * 1988-05-19 1989-11-27 Kawasaki Steel Corp Cr含有継目無鋼管の製造方法
JP2707839B2 (ja) 1990-12-25 1998-02-04 住友金属工業株式会社 マルテンサイト系継目無鋼管とその製造方法
JPH10130687A (ja) * 1996-10-30 1998-05-19 Kawasaki Steel Corp 熱間加工用潤滑剤組成物
JP4867088B2 (ja) * 2001-06-21 2012-02-01 住友金属工業株式会社 高Cr系継目無鋼管の製造方法
JP2004188461A (ja) * 2002-12-11 2004-07-08 Sanyo Special Steel Co Ltd Sus430系鋼種の連続鋳造ブルームの分塊圧延による丸形ビレットの製造方法
EP2682494B1 (en) * 2004-06-30 2019-11-06 Nippon Steel Corporation Method for manufacturing an Fe-Ni alloy pipe stock
EP1785204B1 (en) * 2004-08-31 2012-05-30 Sumitomo Metal Industries, Ltd. Die, method of manufacturing stepped metal tube, and stepped metal tube
JP4945946B2 (ja) * 2005-07-26 2012-06-06 住友金属工業株式会社 継目無鋼管およびその製造方法
JP4556861B2 (ja) 2005-12-15 2010-10-06 住友金属工業株式会社 丸鋼片の製造方法
JP5003151B2 (ja) 2006-12-28 2012-08-15 住友金属工業株式会社 高Cr−高Ni基合金鋼からなる継目無鋼管の製造方法
JP4946557B2 (ja) * 2007-03-20 2012-06-06 Jfeスチール株式会社 ビレットおよびその製造方法
JP5045528B2 (ja) 2008-04-03 2012-10-10 住友金属工業株式会社 ビレットの製造方法

Also Published As

Publication number Publication date
CN103269808A (zh) 2013-08-28
JPWO2012086179A1 (ja) 2016-05-26
BR112013014151A2 (pt) 2016-09-27
KR20130100193A (ko) 2013-09-09
CN103269808B (zh) 2015-08-26
EP2656931B1 (en) 2016-11-23
EP2656931A4 (en) 2015-07-29
US20130263436A1 (en) 2013-10-10
KR101516104B1 (ko) 2015-05-04
MX2013007042A (es) 2014-01-31
BR112013014151B8 (pt) 2020-09-01
JP5056990B2 (ja) 2012-10-24
WO2012086179A1 (ja) 2012-06-28
BR112013014151B1 (pt) 2020-08-04
US9468959B2 (en) 2016-10-18
EP2656931A1 (en) 2013-10-30

Similar Documents

Publication Publication Date Title
EP2415883B1 (en) Method for producing high-strength seamless cr-ni alloy pipe
WO2011078532A3 (ko) 고탄소 마르텐사이트계 스테인리스강 및 그 제조방법
MX345041B (es) Metodo de produccion para barra de acero redonda para tuberia sin costuras que comprende alta aleacion de cr-ni, y metodo de produccion para tuberia sin costuras utilizando la barra de acero redonda.
MX2016001642A (es) Tubo de acero sin costura para tuberia de conduccion y metodo de produccion del mismo.
EP1762354A3 (en) Method and apparatus for casting self-compacting concrete mix
WO2012067379A3 (ko) 인장강도 590MPa급의 가공성 및 재질편차가 우수한 고강도 냉연/열연 DP강의 제조방법
HK1155689A1 (en) Method and apparatus for producing cut to length bars in a steel mill
WO2011076544A3 (de) Verfahren zum warmwalzen einer bramme und warmwalzwerk
TW200806405A (en) Process for the continuous casting of flat metal products with electromagnetic stirring and plant for implementing it
MX371046B (es) Acero debilmente aleado de elevado limite de elasticidad y alta resistencia a la fisuracion bajo tension por sulfuros.
EP2008731A4 (en) BRUSH FOR THE ROLLING OF HIGH-ALLOY MATERIAL, METHOD FOR SURFACE TREATMENT OF THE THORN BAR, METHOD FOR THE PRODUCTION OF THE BRUSH BAR AND METHOD FOR OPERATING THE APPARATUS FOR THE PRODUCTION OF SEAMLESS STEEL PIPES
ITMI20101798A1 (it) Cesoia di taglio di prodotti laminati e relativo processo di produzione
MX2007009772A (es) Metodo para fabricacion de tubo de acero sin costura.
JP2020069512A (ja) ビレット鋳片の連続鋳造方法
ZA201000216B (en) Process for producing steel long products by continuous casting and rolling
MX2014008389A (es) Lamina de acero laminada en caliente y metodo de fabricacion para la misma.
JP5594164B2 (ja) 高合金またはステンレス鋼における継目無鋼管の製造方法
FI20115599A (fi) Menetelmä terästuotteen valmistamiseksi ja terästuote
UA114864C2 (uk) Прокатний стрижень як внутрішній інструмент для виготовлення безшовних металевих порожнистих виробів і спосіб їх виготовлення
JP5790385B2 (ja) 13Cr継目無鋼管用丸鋳片の連続鋳造方法
CN204711139U (zh) 奥氏体不锈钢结晶器锥度控制装置
JP2013180307A (ja) 継目無鋼管製造用連続鋳造丸鋳片の製造方法及び継目無鋼管の製造方法
UA98214C2 (ru) Способ производства стальных высокопрочных электросварных одношовных труб большого диаметра для магистральных трубопроводов
Mao et al. Experimental study on shortened processing technique of 1 Cr 25 Ni 20 Si 2 refractory stainless steel tube.
JP2015047630A (ja) 高Cr鋼の連続鋳造方法

Legal Events

Date Code Title Description
FG Grant or registration