公开(公告)号：EP2792764A4

公开(公告)日：2015-05-06

申请号：EP12856630

申请日：2012-12-10

申请人： JFE STEEL CORP ,  TOKYO INST TECH

发明人： TSURU TOORU ,  MARUYAMA TOSHIO ,  SATO TATSUO ,  TAKEYAMA MASAO ,  YOSHIDA MASAHIRO ,  FUJITA SAKAE ,  SUZUKI SACHIKO ,  ANDO SATORU ,  NAKAMARU HIROKI

IPC分类号： C21D8/04 ,  C21D1/673 ,  C22C21/06 ,  C22F1/047 ,  C23C2/12 ,  C23C2/28

CPC分类号： C23C2/12 ,  C21D1/673 ,  C21D8/0473 ,  C21D8/0478 ,  C21D2211/004 ,  C22C21/06 ,  C23C2/28 ,  Y10T428/12757

公开(公告)号：EP1348780A4

公开(公告)日：2009-11-04

申请号：EP01978825

申请日：2001-10-18

申请人： JFE STEEL CORP

发明人： ANDO SATORU ,  TADA MASAKI ,  SUGIMOTO YOSHIHARU ,  INAGAKI JUNICHI ,  YAMASHITA MASAAKI

IPC分类号： C23C22/07 ,  C23C22/08 ,  C23C22/20 ,  C23C22/22 ,  C23C22/73

CPC分类号： C23C22/73 ,  C23C22/08 ,  C23C22/20 ,  C23C22/22 ,  Y10T428/12569 ,  Y10T428/12611 ,  Y10T428/12799

公开(公告)号：EP2418301A4

公开(公告)日：2016-08-03

申请号：EP10758931

申请日：2010-03-31

申请人： JFE STEEL CORP

发明人： FUJIBAYASHI NOBUE ,  ANDO SATORU

IPC分类号： C23C22/40 ,  C09D5/02 ,  C09D5/08 ,  C09D5/12 ,  C09D175/04

CPC分类号： C23C22/40 ,  C08G2150/90 ,  C09D5/024 ,  C09D5/086 ,  C09D5/12 ,  C09D175/04 ,  C23C2222/20 ,  Y10T428/31678

公开(公告)号：EP2915904A4

公开(公告)日：2015-11-04

申请号：EP13850861

申请日：2013-10-28

申请人： JFE STEEL CORP

发明人： MIYOSHI TATSUYA ,  NAKAJIMA SEIJI ,  ANDO SATORU

IPC分类号： C23C28/00 ,  B21D22/20 ,  B32B15/08 ,  C21D1/18 ,  C21D9/00 ,  C22C18/00 ,  C22C19/03 ,  C22C38/00 ,  C22C38/60 ,  C25D5/26

CPC分类号： C22C38/06 ,  B21D37/16 ,  B32B15/013 ,  C21D1/18 ,  C21D1/673 ,  C21D9/00 ,  C22C18/00 ,  C22C18/04 ,  C22C19/03 ,  C22C38/00 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/28 ,  C22C38/32 ,  C22C38/34 ,  C22C38/38 ,  C22C38/60 ,  C23C2/06 ,  C23C2/26 ,  C23C2/40 ,  C23C28/00 ,  C25D3/562 ,  C25D3/565 ,  C25D5/10 ,  C25D5/14 ,  C25D5/48 ,  C25D5/50 ,  C25D7/0614 ,  Y10T428/12569

摘要： An object of the present invention is to provide a steel sheet for hot press-forming which makes it possible to produce a hot press-formed part excellent in perforation corrosion resistance and joint corrosion resistance in a severe environment, a hot press-formed part produced using the steel sheet for hot press-forming, and a method for producing a hot press-formed part using the steel sheet for hot press-forming. A steel sheet for hot press-forming of the present invention has a zinc coating layer and a Si-containing compound layer in this order on a base steel sheet, in which the Si-containing compound layer contains a silicone resin having an organic functional group of a carbon number of 4 or more. It is preferable that the zinc coating layer consists of a coating layer I and a coating layer II in this order on the base steel sheet, in which the coating layer I contains 60 mass% or more of Ni and the balance being Zn and inevitable impurities and has a coating weight of 0.01 g/m 2 or more and 5 g/m 2 or less, and the coating layer II contains 10 mass% or more and 25 mass% or less of Ni and the balance being Zn and inevitable impurities and has a coating weight of 10 g/m 2 or more and 90 g/m 2 or less.

公开(公告)号：EP1050603A4

公开(公告)日：2004-12-29

申请号：EP99954400

申请日：1999-11-05

申请人： JFE STEEL CORP

发明人： YOSHIMI NAOTO ,  ANDO SATORU ,  SAGIYAMA MASARU ,  FURUTA AKIHIKO ,  YAMASHITA MASAAKI ,  MATSUZAKI AKIRA ,  YAMAJI TAKAFUMI ,  MIYOSHI TATSUYA ,  KUBOTA TAKAHIRO ,  HARUTA YASUHIKO ,  MATSUKI HIROYASU ,  TOMITA KENICHI

IPC分类号： B05D5/00 ,  B05D7/00 ,  C09D5/08 ,  C09D5/10 ,  C23C22/12 ,  C23C28/00 ,  C23C22/40 ,  B05D7/14 ,  C09D1/00 ,  C09D7/12 ,  C09D201/02

CPC分类号： C23C22/22 ,  B05D5/00 ,  B05D7/51 ,  B05D2202/10 ,  C09D5/084 ,  C09D5/10 ,  C23C22/08 ,  C23C22/18 ,  C23C22/20 ,  C23C28/00 ,  Y10T428/256 ,  Y10T428/31609

摘要： A surface treated steel plate having excellent corrosion resistance which comprises a steel sheet plated with a zinc-based metal or aluminum-based metal, a composite oxide coating film formed on the metal-plated steel, and an organic coating film formed on the composite oxide coating film, wherein the composite oxide coating film contains oxide particles and phosphoric acid and/or a phosphoric acid derivative, and the organic coating film has a film thickness of 1 to 5 νm.

公开(公告)号：EP3330016A4

公开(公告)日：2018-06-27

申请号：EP16830013

申请日：2016-07-05

申请人： JFE STEEL CORP

发明人： NAKAJIMA SEIJI ,  ANDO SATORU

IPC分类号： B21D22/20 ,  B21D22/26 ,  C21D8/02 ,  C21D9/46 ,  C23C2/06 ,  C23C2/26 ,  C23C2/40 ,  C25D5/26 ,  C25D5/48

CPC分类号： B21D22/20 ,  B21D22/26 ,  C21D8/0278 ,  C21D9/46 ,  C23C2/06 ,  C23C2/26 ,  C23C2/40 ,  C25D5/48

摘要： Provided is a method for manufacturing a hot-pressed member excellent in terms of surface appearance with which it is possible to stably manufacture a hot-pressed member having a homogeneous and good surface appearance without causing a significant increase in cost. A method for manufacturing a hot-pressed member includes heating a zinc-based coated steel sheet to a temperature range from the Ac3 transformation temperature to 1000°C, performing hot pressing work, and performing cooling, in which a surface-cleaning treatment is performed on the zinc-based coated steel sheet before the heating is performed. A method for manufacturing a hot-pressed member includes performing cold pressing work on a zinc-based coated steel sheet, heating the zinc-based coated steel sheet to a temperature range from the Ac3 transformation temperature to 1000°C, and cooling the heated steel sheet, in which a surface-cleaning treatment is performed on the zinc-based coated steel sheet before the heating is performed. It is preferable that the zinc-based coated steel sheet be a Zn-Ni-alloy-coated steel sheet having a coating layer on one or both sides of the Zn-Ni-alloy-coated steel sheet, and the coating layer have a chemical composition containing 10 mass% to 25 mass% of Ni and the balance being Zn and inevitable impurities and a coating weight per side of 10 g/m 2 to 90 g/m 2 .

公开(公告)号：EP2495351A4

公开(公告)日：2017-01-18

申请号：EP10826833

申请日：2010-10-22

申请人： JFE STEEL CORP

发明人： MATSUDA TAKESHI ,  MATSUZAKI AKIRA ,  SASAKI MASATO ,  TAKASHIMA KATSUTOSHI ,  ANDO SATORU

IPC分类号： C23C28/00 ,  B05D7/14 ,  B32B15/092 ,  C09D5/08 ,  C23C22/60 ,  C23C22/62 ,  C23C22/82 ,  C23C22/83

CPC分类号： C23C22/60 ,  C09D5/084 ,  C23C22/05 ,  C23C22/64 ,  C23C22/82 ,  C23C22/83 ,  C23C28/00 ,  C23C2222/20 ,  Y10T428/12549 ,  Y10T428/12556 ,  Y10T428/12569 ,  Y10T428/12799 ,  Y10T428/12972 ,  Y10T428/12979 ,  Y10T428/265

摘要： There is provided a galvanized steel sheet that has various properties such as corrosion resistance and adhesion and allows for high conductivity at a low contact pressure. A first layer film is formed by applying a surface treatment solution having a pH of 8 to 10 onto the surface of the galvanized steel sheet and drying the surface treatment solution by heating, the surface treatment solution containing a water-soluble zirconium compound, a tetraalkoxysilane, an epoxy group-containing compound, a chelating agent, a silane coupling agent, vanadic acid, and a metal compound in a specific ratio. Subsequently, a second layer film is formed by applying a surface treatment solution containing an organic resin onto the surface of the first layer film and drying the surface treatment solution by heating.

公开(公告)号：EP3015572A4

公开(公告)日：2016-07-27

申请号：EP14818596

申请日：2014-05-13

申请人： JFE STEEL CORP

发明人： NAKAJIMA SEIJI ,  MORIMOTO MINAKO ,  ANDO SATORU

IPC分类号： C25D5/26 ,  B21D22/20

CPC分类号： B32B15/015 ,  C21D1/00 ,  C21D1/673 ,  C21D7/13 ,  C22C18/00 ,  C22C19/03 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/28 ,  C22C38/32 ,  C22C38/60 ,  C25D3/12 ,  C25D3/56 ,  C25D3/565 ,  C25D5/14 ,  C25D5/50 ,  C25D7/0614

摘要： The present invention provides a steel sheet for hot press-forming having excellent liquid-metal brittle resistance that ensures no liquid-metal brittle fracture even under hot press-forming conditions including a short transfer time so as to improve productivity. The steel sheet for hot press-forming having; the first coating layer on the surface of the steel sheet, containing 60% or more by mass Ni and a remainder composed of Zn and incidental impurities, a coating mass thereof being more than 5 g/m 2 and 50 g/m 2 or less per side, and the second coating layer on the first coating layer, containing 10% to 25% by mass Ni and a remainder composed of Zn and incidental impurities, a coating mass thereof being 10 to 90 g/m 2 per side.

公开(公告)号：EP2612956A4

公开(公告)日：2015-03-18

申请号：EP11821648

申请日：2011-08-25

申请人： JFE STEEL CORP

发明人： MASUOKA HIROYUKI ,  ANDO SATORU ,  YAMAMOTO SHUNSUKE

IPC分类号： C23G1/08 ,  B21B3/02 ,  C21D9/46 ,  C22C38/00 ,  C22C38/58

CPC分类号： C23G1/085 ,  B21B3/02 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0273 ,  C21D9/46 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/22 ,  C22C38/32 ,  C22C38/34 ,  C22C38/38 ,  C23G1/00 ,  C23G1/08 ,  Y10T428/265

公开(公告)号：EP2806051A4

公开(公告)日：2015-03-11

申请号：EP13738039

申请日：2013-01-16

申请人： JFE STEEL CORP

发明人： MASUOKA HIROYUKI ,  ANDO SATORU ,  AIZAWA SHIGEYUKI ,  NAKAZATO KAZUKI ,  TAIRA SHOICHIRO

IPC分类号： C23G1/08 ,  C22C38/00 ,  C22C38/06 ,  C23G1/00

CPC分类号： C23G1/08 ,  C21D8/02 ,  C21D8/0278 ,  C21D9/562 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23G1/00 ,  C23G1/081 ,  C23G1/085 ,  C23G1/086