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1. WO2020135438 - STEEL FOR HIGH-STRENGTH ALUMINUM CLAD SUBSTRATE AND MANUFACTURING METHOD THEREFOR

Publication Number WO/2020/135438
Publication Date 02.07.2020
International Application No. PCT/CN2019/128006
International Filing Date 24.12.2019
IPC
C22C 38/02 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
02containing silicon
C22C 38/04 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
04containing manganese
C22C 38/06 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
06containing aluminium
C22C 38/14 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
14containing titanium or zirconium
C21D 8/02 2006.01
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
8Modifying the physical properties by deformation combined with, or followed by, heat treatment
02during manufacturing of plates or strips
CPC
C21D 2211/005
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING 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
2211Microstructure comprising significant phases
005Ferrite
C21D 8/02
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING 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
8Modifying the physical properties by deformation combined with, or followed by, heat treatment
02during manufacturing of plates or strips
C21D 8/0205
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING 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
8Modifying the physical properties by deformation combined with, or followed by, heat treatment
02during manufacturing of plates or strips
0205of ferrous alloys
C22C 33/04
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
33Making ferrous alloys
04by melting
C22C 38/001
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
001containing N
C22C 38/002
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
002containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
Applicants
  • 宝山钢铁股份有限公司 BAOSHAN IRON & STEEL CO., LTD. [CN]/[CN]
Inventors
  • 宋凤明 SONG, Fengming
  • 王巍 WANG, Wei
  • 胡晓萍 HU, Xiaoping
  • 温东辉 WEN, Donghui
  • 刘运华 LIU, Yunhua
  • 王俊凯 WANG, Junkai
Agents
  • 上海华诚知识产权代理有限公司 WATSON & BAND INTELLECTUAL PROPERTY AGENT LTD.
Priority Data
201811580436.724.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) STEEL FOR HIGH-STRENGTH ALUMINUM CLAD SUBSTRATE AND MANUFACTURING METHOD THEREFOR
(FR) ACIER POUR SUBSTRAT REVÊTU D'ALUMINIUM À HAUTE RÉSISTANCE ET SON PROCÉDÉ DE FABRICATION
(ZH) 一种高强度覆铝基板用钢及其制造方法
Abstract
(EN)
A steel for high-strength aluminum clad substrate, comprising the following chemical elements by mass percent: C: 0.008-0.02%, 0<Si≤0.005%, Mn: 0.25-0.5%, P: 0.018-0.03%, Al≤0.005%, N: 0.0040-0.010%, Ti: 0.02-0.04%, O: 0.02-0.050%, and the balance being Fe and other inevitable impurities. The manufacturing method therefor comprises the steps of: (1) smelting and casting; (2) reheating: reheating a casting blank to 1180°C -1250°C; (3) rough rolling; (4) finish rolling; (5) coiling; (6) cooling to room temperature. The steel for high-strength aluminum clad substrate has high strength and good plasticity.
(FR)
L'invention concerne un acier pour substrat revêtu d'aluminium à haute résistance, comprenant les éléments chimiques suivants en pourcentages massiques : C : 0,008-0,02%, 0<Si≤0,005%, Mn : 0,25-0,5%, P : 0,018-0,03%, Al≤0,005 %, N : 0,0040-0,010%, Ti : 0,02-0,04%, O : 0,02-0,050% et le restant étant du Fe et d'autres impuretés inévitables. Le procédé de fabrication comprend par conséquent les étapes suivantes : (1) fusion et coulée ; (2) réchauffage : réchauffage d'une ébauche de coulée à 1180 °C -1250 °C ; (3) laminage grossier ; (4) laminage de finition ; (5) enroulement ; (6) refroidissement à température ambiante. L'acier pour substrat revêtu d'aluminium à haute résistance présente une résistance élevée et une bonne plasticité.
(ZH)
一种高强度覆铝基板用钢,其化学元素质量百分配比为:C:0.008-0.02%,0<Si≤0.005%,Mn:0.25-0.5%,P:0.018-0.03%,Al≤0.005%,N:0.0040-0.010%,Ti:0.02-0.04%,O:0.02-0.050%,余量为Fe和其他不可避免的杂质。其制造方法包括步骤:(1)冶炼和浇铸;(2)再加热:铸坯被再加热到1180℃-1250℃;(3)粗轧;(4)精轧;(5)卷取;(6)冷却至室温。该高强度覆铝基板用钢强度高,塑性好。
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