EP4035787A4 - Method for rolling super austenitic stainless steel - Google Patents

Method for rolling super austenitic stainless steel Download PDF

Info

Publication number
EP4035787A4
EP4035787A4 EP20866991.1A EP20866991A EP4035787A4 EP 4035787 A4 EP4035787 A4 EP 4035787A4 EP 20866991 A EP20866991 A EP 20866991A EP 4035787 A4 EP4035787 A4 EP 4035787A4
Authority
EP
European Patent Office
Prior art keywords
stainless steel
austenitic stainless
super austenitic
rolling super
rolling
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP20866991.1A
Other languages
German (de)
French (fr)
Other versions
EP4035787A1 (en
Inventor
Miao Zhang
Mingzhe ZHENG
Xudong Sun
Chao CHE
Long Huang
Wei Fan
Feixiang DENG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Iron and Steel Co Ltd
Original Assignee
Nanjing Iron and Steel Co Ltd
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 Nanjing Iron and Steel Co Ltd filed Critical Nanjing Iron and Steel Co Ltd
Publication of EP4035787A1 publication Critical patent/EP4035787A1/en
Publication of EP4035787A4 publication Critical patent/EP4035787A4/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-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
    • B21B1/38—Metal-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 sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/58—Roll-force control; Roll-gap control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D11/00—Process control or regulation for heat treatments
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0242—Flattening; Dressing; Flexing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Steel (AREA)
  • Control Of Metal Rolling (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
EP20866991.1A 2019-09-23 2020-06-19 Method for rolling super austenitic stainless steel Pending EP4035787A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910902611.8A CN110773565B (en) 2019-09-23 2019-09-23 Method for rolling super austenitic stainless steel
PCT/CN2020/096958 WO2021057117A1 (en) 2019-09-23 2020-06-19 Method for rolling super austenitic stainless steel

Publications (2)

Publication Number Publication Date
EP4035787A1 EP4035787A1 (en) 2022-08-03
EP4035787A4 true EP4035787A4 (en) 2022-11-02

Family

ID=69383748

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20866991.1A Pending EP4035787A4 (en) 2019-09-23 2020-06-19 Method for rolling super austenitic stainless steel

Country Status (4)

Country Link
EP (1) EP4035787A4 (en)
KR (1) KR20220061151A (en)
CN (1) CN110773565B (en)
WO (1) WO2021057117A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110773565B (en) * 2019-09-23 2021-08-10 南京钢铁股份有限公司 Method for rolling super austenitic stainless steel
CN111389914B (en) * 2020-03-02 2022-03-25 北京鼎新时代科技有限公司 Production method of super austenite 904L stainless steel plate strip
CN111389913A (en) * 2020-03-17 2020-07-10 江苏甬金金属科技有限公司 Manufacturing method of austenitic stainless steel foil for flexible product
CN112658030A (en) * 2020-12-03 2021-04-16 南京钢铁股份有限公司 Rolling method of wide and thin high-nickel-molybdenum austenitic stainless steel plate
CN113560344B (en) * 2021-06-29 2022-12-16 鞍钢股份有限公司 Production method of medium plate of austenitic stainless steel
CN114042773B (en) * 2021-10-18 2023-06-23 山西太钢不锈钢股份有限公司 Method for improving tissue uniformity of stainless steel super-thick plate
CN115383408A (en) * 2022-09-09 2022-11-25 甘肃酒钢集团宏兴钢铁股份有限公司 Rolling process of high-manganese non-magnetic steel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104275350A (en) * 2014-08-06 2015-01-14 振石集团东方特钢股份有限公司 Rolling method of heat-resistant austenitic stainless steel
CN107419194A (en) * 2017-06-29 2017-12-01 振石集团东方特钢有限公司 A kind of processing method of super austenitic stainless steel coiled sheet

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003041352A (en) * 2001-05-25 2003-02-13 Sumitomo Metal Ind Ltd Hot-rolled stainless steel sheet and manufacturing method therefor
JP2006281298A (en) * 2005-04-04 2006-10-19 Sanyo Special Steel Co Ltd Bloom rolling method of austenitic stainless steel
CN103286128B (en) * 2013-05-30 2015-05-20 山西太钢不锈钢股份有限公司 Super duplex stainless steel S32750 medium plate rolling process
CN107641698B (en) * 2016-07-22 2019-09-17 宝钢特钢有限公司 The manufacturing method of super austenitic stainless steel cold-rolled strip
CN107716584B (en) * 2017-09-18 2020-11-20 浦项(张家港)不锈钢股份有限公司 Production method of super austenite 904L stainless steel plate strip
CN108787751B (en) * 2018-05-21 2020-02-07 南京钢铁股份有限公司 Production control method for wide-width thin-specification super stainless steel plate coil of single-stand steckel mill
CN108838216A (en) * 2018-06-29 2018-11-20 首钢京唐钢铁联合有限责任公司 A kind of control method of slab nose
CN110066957A (en) * 2019-05-17 2019-07-30 国家电投集团科学技术研究院有限公司 Corrosion-resistant super austenitic stainless steel of modified and preparation method thereof
CN110773565B (en) * 2019-09-23 2021-08-10 南京钢铁股份有限公司 Method for rolling super austenitic stainless steel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104275350A (en) * 2014-08-06 2015-01-14 振石集团东方特钢股份有限公司 Rolling method of heat-resistant austenitic stainless steel
CN107419194A (en) * 2017-06-29 2017-12-01 振石集团东方特钢有限公司 A kind of processing method of super austenitic stainless steel coiled sheet

Also Published As

Publication number Publication date
KR20220061151A (en) 2022-05-12
CN110773565B (en) 2021-08-10
EP4035787A1 (en) 2022-08-03
CN110773565A (en) 2020-02-11
WO2021057117A1 (en) 2021-04-01

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