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公开(公告)号：EP4364884A1
公开(公告)日：2024-05-08
申请号：EP22817058.5
申请日：2022-01-26
IPC分类号： B23K35/30 , C23C2/12 , C23C2/28 , C23C2/40 , C22C38/04 , C22C38/06 , C22C38/00 , B23K26/20 , B23K33/00 , B23K101/18
CPC分类号： B23K35/30 , B23K2101/1820180801 , C22C38/00 , C22C38/06 , C22C38/04 , C23C2/12 , C23C2/28 , C23C2/40 , B32B15/012 , C22C38/002 , C22C38/02 , B23K26/242 , B23K26/26 , B23K26/322 , B23K2101/3420180801 , B23K2103/0420180801 , B23K2101/00620180801
摘要： An exemplary embodiment of the present invention discloses an aluminum-based blank including: a first plated steel plate; a second plated steel plate connected to the first plated steel plate; and a joint connecting the first plated steel plate and the second plated steel plate at a boundary between the first plated steel plate and the second plated steel plate.
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2.发明授权
公开(公告)号：EP3118283B1
公开(公告)日：2023-04-26
申请号：EP15761078.3
申请日：2015-03-11
发明人： KIM, Byong Chul , LEE, Hong Seug , CHOI, Won Seok
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公开(公告)号：EP2623625B1
公开(公告)日：2018-10-24
申请号：EP11829490.9
申请日：2011-08-29
发明人： KIM, Kyu-Tae , LEE, Myung-Jin , PARK, Kyu-Heop
IPC分类号： C22C38/00 , C21D8/02 , C22C38/28 , C22C38/50 , C21D8/10 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/46 , C22C38/48 , C22C38/02
CPC分类号： C21D8/0226 , C21D8/0205 , C21D8/10 , C21D8/105 , C21D2211/002 , C21D2211/005 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/46 , C22C38/48 , C22C38/50
摘要： Disclosed are a steel plate for a line pipe having excellent hydrogen induced crack resistance with a tensile strength of 450 MPa or more, and a preparation method thereof. According to the present invention, the steel plate for a line pipe, having excellent hydrogen induced crack resistance comprises: 0.03ˆ¼0.05 wt% of carbon (C); 0.2-0.3 wt% of silicon (Si); 0.5-1.3 wt% of manganese (Mn); 0.010 wt% or less of phosphorus (P); 0.005 wt% or less of sulfur (S); 0.02-0.05 wt% of aluminum (Al); 0.2-0.5 wt% of nickel (Ni); 0.2-0.3 wt% of chromium (Cr); 0.03-0.05 wt% of niobium (Nb); 0.02-0.05 wt% of vanadium (V); 0.01-0.02 wt% of titanium (Ti); 0.001-0.004 wt% of calcium (Ca); and a balance of iron (Fe) and inevitable impurities, and has a tensile strength of 450 MPa or more.
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公开(公告)号：EP3378958A1
公开(公告)日：2018-09-26
申请号：EP16848724.7
申请日：2016-01-14
发明人： PARK, Jin Sung , KWON, Sun Hwan
CPC分类号： C21D9/46 , C21D6/002 , C21D6/005 , C21D6/008 , C21D8/02 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D8/0278 , C21D2211/001 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/26 , C22C38/28 , C22C38/34 , C22C38/38 , C23C2/02 , C23C2/06 , C23C2/40 , C23F17/00 , C23G1/00
摘要： Disclosed is a method for producing a coated steel sheet. A method for producing a coated steel sheet according to the present invention includes the steps of: reheating a steel slab containing 0.15-0.25 wt% of carbon (C), more than 0 wt% but not more than 1.5 wt% of silicon (Si), 1.5-2.5 wt% of manganese (Mn), more than 0 wt% but not more than 1.8 wt% of aluminum (Al), 0.3-1.0 wt% of chromium (Cr), more than 0 wt% but not more than 0.03 wt% of titanium (Ti), more than 0 wt% but not more than 0.03 wt% of niobium (Nb), and the balance of iron (Fe) and unavoidable impurities; hot-rolling, cooling and coiling the steel slab, thereby producing a hot-rolled steel sheet; pickling the hot-rolled steel sheet, followed by cold rolling; annealing the cold-rolled steel sheet at a temperature between 820°C and 870°C, followed by cooling at a finish-cooling temperature between 350°C and 450°C; tempering the cooled steel sheet at a temperature between 450°C and 550°C; and hot-dip galvanizing the tempered steel sheet.
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公开(公告)号：EP3354364A1
公开(公告)日：2018-08-01
申请号：EP16848723.9
申请日：2016-01-14
IPC分类号： B21D53/88 , B21D22/20 , B21D37/16 , B21B3/00 , C22C38/38 , C22C38/32 , C22C38/28 , C22C38/26 , C21D8/04
摘要： Disclosed is an invention relating to a method for producing a molded article. The method for producing the molded article includes the steps of: preparing a first steel plate and a second steel plate; joining the first steel plate and the second steel plate to each other, thereby preparing a joined steel plate; heating the joined steel plate at a temperature between 910°C and 950°C; subjecting the heated joined steel plate to hot-press molding, thereby preparing an intermediate molded article; and cooling the intermediate molded article, wherein the first steep plate has a tensile strength (TS) higher than that of the second steel plate.
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7.发明授权PREPARATION METHOD OF STEEL PRODUCT HAVING DIFFERENT STRENGTHS USING LASER HEAT TREATMENT 有权方法用于生产具有不同的优势钢材用激光热处理
公开(公告)号：EP2762577B1
公开(公告)日：2016-04-27
申请号：EP11873399.7
申请日：2011-10-17
发明人： IM, Hee-Joong , NAM, Seung-Man , LEE, Bo-Ryong , KIM, Kyung-Bo , JUNG, Youn-Il
CPC分类号： C21D9/0068 , C21D1/09 , C21D1/34 , C21D2221/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/28 , C22C38/32 , C22C38/38 , Y10T428/12674 , Y10T428/12757 , Y10T428/12799 , Y10T428/12937 , Y10T428/31678
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公开(公告)号：EP2369668B1
公开(公告)日：2016-03-16
申请号：EP11159248.1
申请日：2011-03-22
CPC分类号： H01M8/0228 , H01M8/0206 , H01M8/0213 , H01M8/0226 , H01M2008/1095 , Y02P70/56 , Y10T428/12625
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公开(公告)号：EP2980228A1
公开(公告)日：2016-02-03
申请号：EP14776303.1
申请日：2014-01-29
发明人： PARK, Jin-Sung , KANG, Chun-Ku , GOO, Nam-Hoon , KIM, Seong-Ju
CPC分类号： C21D8/0263 , C21D6/002 , C21D6/005 , C21D6/008 , C21D8/02 , C21D8/0205 , C21D8/0221 , C21D8/0226 , C21D8/0236 , C21D8/0247 , C21D9/46 , C21D2211/005 , C21D2211/008 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/18 , C22C38/22 , C22C38/34 , C22C38/38
摘要： Disclosed are a steel sheet having excellent and a method for producing the same. The disclosed steel sheet comprises, by weight, 0.005-0.06% carbon (C), 0.2% or less silicon (Si), 1.0-2.0% manganese (Mn), 0.01% or less sulfur (S), 0.2-2.0% aluminum (Al), one or more of chromium (Cr) and molybdenum (Mo) in an amount satisfying 0.3 ≤ [Cr wt%]+0.3[Mo wt%] ≤ 2.0, and 0.008% or less nitrogen (N), with the remainder being iron (Fe) and inevitable impurities, wherein the density of dislocations in the ferrite matrix of the steel sheet is 1x10 13 /m 2 or more.
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10.发明授权QUENCHED STEEL SHEET HAVING EXCELLENT HOT PRESS FORMABILITY, AND METHOD FOR MANUFACTURING SAME 有权随着对生产优秀HEISSPRESSFORMBARKEIT和过程给付钢板
公开(公告)号：EP2527481B1
公开(公告)日：2014-12-17
申请号：EP09848345.6
申请日：2009-12-30
发明人： KIM, Taekjoon , LEE, Seungha , KIM, Seoungju
CPC分类号： C22C38/02 , C22C38/04 , C22C38/10 , C22C38/16 , Y10T428/12757
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