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1. WO2021057117 - METHOD FOR ROLLING SUPER AUSTENITIC STAINLESS STEEL

Publication Number WO/2021/057117
Publication Date 01.04.2021
International Application No. PCT/CN2020/096958
International Filing Date 19.06.2020
IPC
B21B 1/38 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
BROLLING OF METAL
1Metal 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
38for rolling sheets of limited length, e.g. folded sheets, superimposed sheets
B21B 45/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
BROLLING OF METAL
45Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
CPC
B21B 1/38
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
BROLLING OF METAL
1Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section
38for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, ; pack rolling
B21B 37/28
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
BROLLING OF METAL
37Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
28Control of flatness or profile during rolling of strip, sheets or plates
B21B 37/58
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
BROLLING OF METAL
37Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
58Roll-force control; Roll-gap control
B21B 37/74
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
BROLLING OF METAL
37Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
74Temperature control, e.g. by cooling or heating the rolls or the product
B21B 45/004
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
BROLLING OF METAL
45Devices for surface ; or other; treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
004Heating the product
B21B 45/04
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
BROLLING OF METAL
45Devices for surface ; or other; treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
04for de-scaling ; , e.g. by brushing
Applicants
  • 南京钢铁股份有限公司 NANJING IRON & STEEL CO., LTD. [CN]/[CN]
Inventors
  • 张淼 ZHANG, Miao
  • 郑明哲 ZHENG, Mingzhe
  • 孙旭东 SUN, Xudong
  • 车超 CHE, Chao
  • 黄龙 HUANG, Long
  • 樊卫 FAN, Wei
  • 邓飞翔 DENG, Feixiang
Agents
  • 南京苏高专利商标事务所(普通合伙) NANJING SUGAO PATENT AND TRADEMARK FIRM ( ORDINARY PARTNERSHIP )
Priority Data
201910902611.823.09.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD FOR ROLLING SUPER AUSTENITIC STAINLESS STEEL
(FR) PROCÉDÉ DE LAMINAGE D'ACIER INOXYDABLE SUPER-AUSTÉNITIQUE
(ZH) 一种轧制超级奥氏体不锈钢的方法
Abstract
(EN)
Disclosed is a method for rolling a super austenitic stainless steel, the method comprising: blank model selection, a steel firing procedure, a descaling procedure, a steel rolling procedure and a straightening procedure. The method realizes the rolling of a super austenitic stainless steel with specifications of a thickness of 10 mm or less and a width of 2500 mm or more, and the successful rolling of a N08367 steel grade steel plate with specifications of a thickness of 8.5 mm and a width of 2510 mm and 2610 mm, thereby filling up the gap in the width range of 2510-2610 mm of the N08367 steel grade at a thickness of 8.5 mm. In addition, the shape of a rolled plate is stable, and the rolling success rate reaches 95.4%.
(FR)
Est divulgué un procédé de laminage d'un acier inoxydable super-austénitique, le procédé comprenant : une sélection de modèle d'ébauche, une procédure de cuisson d'acier, une procédure de décalaminage, une procédure de laminage d'acier et une procédure de redressage. Le procédé réalise le laminage d'un acier inoxydable super-austénitique avec des spécifications d'une épaisseur de 10 mm ou moins et d'une largeur de 2 500 mm ou plus, et le laminage réussi d'une plaque d'acier de grade d'acier N08367 avec des spécifications d'une épaisseur de 8,5 mm et d'une largeur de 2 510 mm et de 2 610 mm, ce qui permet de remplir l'espace dans la plage de largeur de 2 510 à 2 610 mm du grade d'acier N08367 à une épaisseur de 8,5 mm. En outre, la forme d'une plaque laminée est stable, et le taux de réussite de laminage atteint 95,4 %.
(ZH)
一种轧制超级奥氏体不锈钢的方法,包括坯料选型、烧钢工序、除鳞工序、轧钢工序、矫直工序;该方法实现轧制厚度10mm以下、宽度2500mm以上规格的超级奥氏体不锈钢,并成功轧制厚度8.5mm、宽度2510mm和2610mm规格的N08367钢种钢板,填补了N08367钢种在8.5mm厚度下2510-2610mm的宽度范围的空白,且轧制的板型稳定,轧制成功率达到95.4%。
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