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1. 发明授权

EP3926074B1 ACIDIC LIQUID PREPARATION DEVICE, ACIDIC LIQUID FEEDING DEVICE, AND PICKLING FACILITY 有权
公开(公告)号：EP3926074B1
公开(公告)日：2024-03-06
申请号：EP19921211.9
申请日：2019-03-22
发明人： TSUJI, Kosei , NAKATSUKA, Ryusuke , YAGI, Takahiro , YOSHIKAWA, Masashi , TAKATANI, Hideaki , YASUI, Toyoaki , HIRATA, Takuya
IPC分类号： C23G1/08 , C23G1/36 , C23G3/02

2. 发明公开

EP4328345A1 METHOD FOR PRE-TREATING A FENCE PANEL FOR GALVANIZATION AND PRE-TREATED FENCE PANEL 审中-实审
公开(公告)号：EP4328345A1
公开(公告)日：2024-02-28
申请号：EP23192614.8
申请日：2023-08-22
申请人： Balak Coatings nv
发明人： van Bakel, Frans , Riepen, Vicky , van Hoeij, Marcel
IPC分类号： C23C2/02 , C23C2/06 , C23C2/30 , C23C2/38 , C23C2/40 , E04H17/02 , C23G1/08
摘要： The present invention concerns a method for pre-treating a fence panel to be galvanized, comprising the sequential steps of: i. pickling, ii. rinsing, iii. fluxing and iv. drying a fence panel to be galvanized, wherein during pickling the fence panel is immersed three times in a pickling bath comprising a pickling solution, wherein the pickling solution comprises water, in an amount between 90 and 96 m%, and hydrogen chloride (HCl), in an amount between 2 and 5 m%, wherein the method does not comprise the step of degreasing the fence panel.

3. 发明公开

EP4282994A1 METHOD FOR PRODUCING ANNEALED AND PICKLED STEEL SHEET 审中-实审
公开(公告)号：EP4282994A1
公开(公告)日：2023-11-29
申请号：EP21933276.4
申请日：2021-12-20
申请人： JFE Steel Corporation
发明人： TAKEYAMA, Hayato , MIZUNO, Daisuke
IPC分类号： C21D9/46 , C23G1/08 , C23G3/02 , C22C38/00 , C22C38/02 , C22C38/58
摘要： To provide a method for producing an annealed and pickled steel sheet that can continuously and stably produce an annealed and pickled steel sheet that is excellent in chemical convertibility, post-coating corrosion resistance, and surface appearance quality. Disclosed is a method for producing an annealed and pickled steel sheet in a continuous manner by continuously performing: subjecting a cold-rolled steel sheet to annealing in an annealing furnace by feeding the cold-rolled steel sheet through the annealing furnace to obtain an annealed steel sheet; subjecting the annealed steel sheet discharged from the annealing furnace to pickling with a mixed acid solution containing a first acid that is oxidizing and a second acid that is non-oxidizing, by feeding the annealed steel sheet into a mixed acid tank holding the mixed acid solution; and subjecting the annealed steel sheet discharged from the mixed acid tank to repickling with an acid solution containing a third acid that is non-oxidizing, by feeding the annealed steel sheet into an acid tank holding the acid solution, to thereby obtain an annealed and pickled steel sheet. Fe concentration in the mixed acid solution in the mixed acid tank is measured, and a lower limit of ferrite fraction in a surface layer of the annealed steel sheet to be subjected to the pickling is set according to the Fe concentration measured.

4. 发明公开

EP4279623A1 STAINLESS STEEL MATERIAL FOR SOLID OXIDE FUEL CELLS, METHOD FOR PRODUCING SAME, MEMBER FOR SOLID OXIDE FUEL CELLS, AND SOLID OXIDE FUEL CELL 审中-实审
公开(公告)号：EP4279623A1
公开(公告)日：2023-11-22
申请号：EP21919620.1
申请日：2021-12-08
申请人： NIPPON STEEL Stainless Steel Corporation
发明人： HATANO,Masaharu , MATSUMOTO,Mitsuki , TAI,Yoshikazu , KAGEOKA,Kazuyuki
IPC分类号： C22C38/00 , C22C38/50 , C22C38/54 , C23G1/08 , H01M8/021 , H01M8/12
摘要： A stainless steel material for solid oxide fuel cells, the stainless steel material containing: on a mass basis, 0.030% or less of C; 1.00% or less of Si; 1.00% or less of Mn; 0.050% or less of P; 0.0030% or less of S; 13.0% or more and less than 22.0% of Cr; 1.50% or less of Mo; 0.030% or less of N; 0.30% or less of Al; 0.40% or less of Nb; 0.40% or less of Ti; 1.00% or less of Ni; and 1.00% or less of Cu, a high purity index represented by the following equation (1) being less than 1.50%, and the balance being Fe and impurities: high purity index = 10 C + N + 15 S + 8 P + 2 Ti + Nb wherein each of the symbols of the elements represents a content of each of the elements.

5. 发明授权

EP3913107B1 GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME 有权
公开(公告)号：EP3913107B1
公开(公告)日：2023-11-08
申请号：EP20740802.2
申请日：2020-01-16
发明人： TAKEDA Kazutoshi , TANAKA Ichiro , SUENAGA Tomoya , KATAOKA Takashi , KUNITA Yuki
IPC分类号： C23C22/00 , C21D8/12 , C22C38/02 , C21D9/46 , C23C22/18 , C23C22/20 , C23G1/08 , C22C38/06 , C23C22/74 , C23C22/73 , C22C38/04 , C22C38/00 , C22C38/60 , C23C22/08 , C23C28/04 , C21D1/26 , C21D1/76 , C21D6/00

6. 发明授权

EP3733911B1 ULTRA-HIGH-STRENGTH HOT-ROLLED STEEL SHEET, STEEL PIPE, MEMBER, AND MANUFACTURING METHODS THEREFOR 有权转让
公开(公告)号：EP3733911B1
公开(公告)日：2023-10-18
申请号：EP18894148.8
申请日：2018-12-13
发明人： SEONG, Hwan-Goo , CHO, Yeol-Rae , BAE, Seong-Beom
IPC分类号： C22C38/44 , C22C38/42 , C22C38/50 , C22C38/02 , C22C38/04 , C22C38/54 , C21D8/02 , C21D9/46 , C21D1/18 , C21D1/26 , C21D6/00 , C21D8/04 , C21D8/10 , C21D9/08 , C21D9/48 , C22C38/00 , C22C38/06 , B23K103/04 , B23K9/025 , C23G1/08 , B23K11/093

7. 发明公开

EP4242341A1 PLATED STEEL SHEETS FOR HOT PRESS FORMING HAVING EXCELLENT HYDROGEN BRITTLENESS RESISTANCE AND IMPACT RESISTANCE, HOT PRESS FORMED PARTS, AND MANUFACTURING METHODS THEREOF 审中-实审
公开(公告)号：EP4242341A1
公开(公告)日：2023-09-13
申请号：EP21889430.1
申请日：2021-10-19
申请人： POSCO Co., Ltd
发明人： KIM, Sang-Heon , OH, Jin-Keun , KIM, Seong-Woo , HAN, Sang-Bin
IPC分类号： C23C2/02 , C23C2/12 , C23C2/40 , C23G1/08 , C22C38/60 , C22C38/38 , C22C38/32 , C21D8/02 , B21D22/00
摘要： Provided are plated steel sheets for hot press forming, hot press formed parts manufactured therefrom, and manufacturing methods thereof, the plated steel sheets for hot press forming comprising: a base steel sheet comprising, in weight percent, 0.14-0.5% of C, 0.001-1% of Si, 0.3-4% of Mn, 0.001-0.015% of P, 0.0001-0.02% of S, 0.001-0.1% of Al, 0.001-1% of Cr, 0.001-0.02% of N, 0.1% or less of Ti, 0.01% or less of B, 0.005-0.1% of Sb, and a balance of Fe and other inevitable impurities; an aluminum or aluminum alloy plated layer provided on at least one surface of the base steel sheet; and a Sb-rich layer provided between the base steel sheet and the plated layer, wherein relational expressions 1-1 and 1-2 below are satisfied. Sb max Sb coat ≥ 1.2 Sb max − Sb coat 2 × Δt ≥ 0.008 [In relational expressions 1-1 and 1-2, Sb coat represents the average Sb content in the plated layer, the unit thereof being weight percent. Sb max represents the maximum Sb content in the Sb-rich layer, the unit thereof being weight percent. △t represents the linear distance from the boundary between the plated layer and the Sb-rich layer, to the point where Sb max was measured, the unit thereof being µm.]

8. 发明公开

EP4223888A3 FERRITIC STAINLESS STEEL AND METHOD FOR MANUFACTURING SAME, FERRITIC STAINLESS STEEL SHEET AND METHOD FOR MANUFACTURING SAME, AND FUEL CELL MEMBER 审中-实审
公开(公告)号：EP4223888A3
公开(公告)日：2023-09-13
申请号：EP23165488.0
申请日：2019-03-26
申请人： NIPPON STEEL Stainless Steel Corporation
发明人： HATANO, Masaharu , SUGEOI, Mitsuki , NISHIMOTO, Takumi
IPC分类号： C21D1/26 , C21D8/02 , C21D9/46 , C21D6/00 , C22C38/00 , C22C38/60 , C22C38/04 , C22C38/06 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/34 , C22C38/42 , C22C38/02 , H01M8/021 , C23C22/00 , C21D1/30 , C23G1/00 , C23G1/08 , H01M8/0612 , H01M8/04007
摘要： The present invention relates to a ferritic stainless steel sheet, comprising, by mass%: Cr: 12.0% to 16.0%; C: 0.020% or less; Si: 2.50% or less; Mn: 1.00% or less; P: 0.050% or less; S: 0.0030% or less; Al: 2.50% or less; N: 0.030% or less; Nb: 0.001% to 1.00%; Ni: 0% to 1.0%; Cu: 0% to 1.0%; Mo: 0% to 1.0%; Sb: 0% to 0.5%; W: 0% to 1.0%; Co: 0% to 0.5%; V: 0% to 0.5%; Ti: 0% to 0.5%; Zr: 0% to 0.5%; La: 0% to 0.1%; Y: 0% to 0.1%; Hf: 0% to 0.1%; REM: 0% to 0.1%; two or more of B: 0.0200% or less, Sn: 0.20% or less, Ga: 0.0200% or less, Mg: 0.0200% or less, and Ca: 0.0100% or less; and a balance consisting of Fe and impurities,
wherein Expression (1) is satisfied,
Expression (2) and Expression (3) are satisfied by each of maximum concentrations Cr m , Al m , and Si m (mass%) of Cr, Al, and Si in a surface layer part including a passivation film which is a region from a steel sheet surface to a depth of 30 nm, and
the texture of a sheet thickness middle portion satisfies the following conditions of (A) and (B), 10 B + Ga + Sn + Mg + Ca > 0.020 15.0 Cr m mass % 55.0 3.0 Al m + Si m mass % 30.0
(A) in the sheet thickness middle portion, an area ratio of {111} ± 10° oriented grains, in which an angle difference between a normal direction of a steel sheet surface and a {111} plane orientation is within 10°, is more than 20% and less than 60%, and
(B) in the sheet thickness middle portion, an area ratio of {110} ± 10° oriented grains, in which an angle difference between a normal direction of a steel sheet surface and a {110} plane orientation is within 10°, is more than 0.5% and less than 5%,

where each of the element symbols in Expression (1) indicates the content (mass%) of each of the elements in the steel.

9. 发明公开

EP4206358A1 A STAINLESS STEEL SURFACE TREATMENT METHOD FOR BONDING WITH A POLYMER 审中-实审
公开(公告)号：EP4206358A1
公开(公告)日：2023-07-05
申请号：EP22216724.9
申请日：2022-12-27
申请人： Dongguan DSP Technology Co., Ltd.
发明人： LONG, Guo Tie , YONGGANG, Tan
IPC分类号： C23F1/28 , C23F1/32 , C23G1/08 , C25D11/02 , C25D11/12 , C25D11/34 , C25D11/16 , C25D11/18 , C25D11/20
摘要： [issue] To provide an SUS surface treatment method for manufacturing a polymer-SUS joint structure having excellent bond strength.
[Solution] A SUS surface treatment method for bonding with a polymer composite which comprises:
(a) a first etching step wherein the SUS surface is etched by acidic solution;
(b) a surface treatment step wherein the SUS surface is treated by ultrasonic wave;
(c) a second etching step wherein the SUS surface is etched again by acidic solution;
(d) a first silane coupling treatment step wherein the SUS surface is treated by anodic oxidation;
(e) a third etching step wherein the SUS surface is etched by acidic solution;
(f) a second silane coupling treatment step wherein the SUS surface is treated by anodic oxidation.

10. 发明授权

EP3475465B1 PROCESS FOR THE RAPID BLACKENING OF SURGICAL NEEDLES 有权
公开(公告)号：EP3475465B1
公开(公告)日：2023-02-22
申请号：EP17734196.3
申请日：2017-06-15
发明人： OU, Duan, Li , VAILHE, Christophe , ALHAMYERY, Inas
IPC分类号： C23C22/62 , C23C22/78 , C23G1/08 , A61B17/00 , A61B17/06

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