公开(公告)号：US20140349134A1

公开(公告)日：2014-11-27

申请号：US14370502

申请日：2012-12-26

Applicant: JFE Steel Corporation

Inventor： Hideki Nagano ,  Daisuke Harako ,  Yuji Tanaka

IPC: B32B15/01

CPC classification number: B32B15/013 ,  C21D8/0226 ,  C21D8/0263 ,  C21D8/0278 ,  C21D9/46 ,  C21D2211/004 ,  C22C18/00 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C23C2/06 ,  C23C2/28 ,  Y10T428/12799

Abstract: A hot-dip galvannealed steel sheet has excellent chipping resistance and after-coating adherence while ensuring corrosion resistance. The hot-dip galvannealed steel sheet has a base material steel sheet having a predetermined component composition and a hot-dip galvannealing layer containing by mass 7-15% Fe provided on the base material steel sheet surface, wherein the hot-dip galvannealed steel sheet contains within the hot-dip galvannealing layer at least 0.01% by mass of a precipitate including one or more elements selected from the group consisting of Ti, Nb, V, Mo, and W.

Abstract translation: 热浸镀锌合金化钢板具有优异的耐崩裂性和后涂层粘附性，同时确保耐腐蚀性。 热镀合金化热镀锌钢板具有预定的组成成分的基材钢板和在基材钢板表面上设置的质量为7〜15％的Fe的热浸镀锌合金层，其中，浸渍热浸镀锌钢板 在热浸镀锌层内含有至少0.01质量％的包含选自Ti，Nb，V，Mo和W中的一种或多种元素的沉淀物。

公开(公告)号：US09895863B2

公开(公告)日：2018-02-20

申请号：US14914803

申请日：2014-08-22

Applicant: JFE Steel Corporation

Inventor： Daisuke Harako ,  Tetsuya Iwata

IPC: B32B15/01 ,  C23C2/02 ,  C23C2/40 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C21D1/26 ,  C21D6/00 ,  C21D9/46 ,  B32B15/04 ,  B32B15/18 ,  C21D1/74 ,  C23C2/06 ,  C22C18/00 ,  C22C18/04 ,  C21D8/02 ,  C21D3/06

CPC classification number: B32B15/013 ,  B32B15/01 ,  B32B15/04 ,  B32B15/18 ,  C21D1/26 ,  C21D1/74 ,  C21D3/06 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0278 ,  C21D9/46 ,  C22C18/00 ,  C22C18/04 ,  C22C38/00 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C2/02 ,  C23C2/06 ,  C23C2/40 ,  Y10T428/12799 ,  Y10T428/12972 ,  Y10T428/12993

Abstract: A high-strength galvanized steel sheet includes a base steel sheet having a specific chemical composition and a zinc coating layer disposed on the surface of the base steel sheet in a coating weight per side of 20 g/m2 to 120 g/m2, wherein the amount of hydrogen measured by a specific method is 0.05 mass ppm to 0.40 mass ppm; and ISisur/ISibulk and IMnsur/IMnbulk calculated by a specific method are not more than 2.0 and not more than 3.0, respectively.

公开(公告)号：US20150017474A1

公开(公告)日：2015-01-15

申请号：US14380844

申请日：2013-02-25

Applicant: JFE STEEL CORPORATION

Inventor： Daisuke Harako ,  Yoshitsugu Suzuki ,  Yasunobu Nagataki

IPC: C21D8/00 ,  C22C38/02 ,  B32B15/01 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C23F17/00 ,  C22C38/04

CPC classification number: C21D8/005 ,  B32B15/01 ,  B32B15/013 ,  C21D8/0205 ,  C21D8/0263 ,  C21D8/0278 ,  C21D9/46 ,  C21D9/561 ,  C21D2241/00 ,  C22C18/00 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C23C2/02 ,  C23C2/06 ,  C23C2/28 ,  C23C28/321 ,  C23C28/345 ,  C23F17/00 ,  Y10T428/12799

Abstract: A high strength galvanized steel sheet has a composition including, C: 0.02% or more and 0.30% or less, Si: 0.01% or more and 2.5% or less, Mn: 0.1% or more and 3.0% or less, P: 0.003% or more and 0.08% or less, S: 0.01% or less, Al: 0.001% or more and 0.20% or less, Ti: 0.03% or more and 0.40% or less and the balance being Fe and inevitable impurities, and a zinc-coated layer having a coating weight per surface of 20 g/m2 or more and 120 g/m2 or less. The concentration ratio of C to Ti (C/Ti) in a portion within 10 μm from the surface of the base steel sheet is 0.8 or more and 1.5 or less, and the total amount of oxides of one or more selected from Fe, Si, Mn, P, Al and Ti formed in a surface portion within 100 μm from the surface of the base steel sheet is 0.05 g/m2 or less.

Abstract translation: 高强度镀锌钢板具有以下组成：C：0.02％以上且0.30％以下，Si：0.01％以上且2.5％以下，Mn：0.1％以上且3.0％以下，P：0.003 ％以上且0.08％以下，S：0.01％以下，Al：0.001％以上且0.20％以下，Ti：0.03％以上且0.40％以下，余量为Fe和不可避免的杂质， 锌涂层的表面涂层重量为20g / m 2以上且120g / m 2以下。 与基材钢板的表面10μm以下的部分的C与Ti（C / Ti）的浓度比为0.8以上且1.5以下，从Fe，Si 在基板表面100μm以下的表面部分形成的Mn，P，Al，Ti为0.05g / m 2以下。

公开(公告)号：US09840749B2

公开(公告)日：2017-12-12

申请号：US14380844

申请日：2013-02-25

Applicant: JFE STEEL CORPORATION

Inventor： Daisuke Harako ,  Yoshitsugu Suzuki ,  Yasunobu Nagataki

IPC: B32B15/00 ,  C21D8/00 ,  C23C2/02 ,  C23C2/06 ,  C21D9/46 ,  C22C38/14 ,  C23C28/00 ,  C21D8/02 ,  B32B15/01 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/12 ,  C22C38/06 ,  C23F17/00 ,  C23C2/28 ,  C21D9/56 ,  C22C18/00

CPC classification number: C21D8/005 ,  B32B15/01 ,  B32B15/013 ,  C21D8/0205 ,  C21D8/0263 ,  C21D8/0278 ,  C21D9/46 ,  C21D9/561 ,  C21D2241/00 ,  C22C18/00 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C23C2/02 ,  C23C2/06 ,  C23C2/28 ,  C23C28/321 ,  C23C28/345 ,  C23F17/00 ,  Y10T428/12799

Abstract: A high strength galvanized steel sheet has a composition including, C: 0.02% or more and 0.30% or less, Si: 0.01% or more and 2.5% or less, Mn: 0.1% or more and 3.0% or less, P: 0.003% or more and 0.08% or less, S: 0.01% or less, Al: 0.001% or more and 0.20% or less, Ti: 0.03% or more and 0.40% or less and the balance being Fe and inevitable impurities, and a zinc-coated layer having a coating weight per surface of 20 g/m2 or more and 120 g/m2 or less. The concentration ratio of C to Ti (C/Ti) in a portion within 10 μm from the surface of the base steel sheet is 0.8 or more and 1.5 or less, and the total amount of oxides of one or more selected from Fe, Si, Mn, P, Al and Ti formed in a surface portion within 100 μm from the surface of the base steel sheet is 0.05 g/m2 or less.

公开(公告)号：US20160214351A1

公开(公告)日：2016-07-28

申请号：US14914803

申请日：2014-08-22

Applicant: JFE STEEL CORPORATION

Inventor： Daisuke Harako ,  Tetsuya Iwata

IPC: B32B15/01 ,  C23C2/02 ,  C23C2/40 ,  C22C38/06 ,  C21D1/26 ,  C22C38/02 ,  C22C38/00 ,  C21D9/46 ,  C21D6/00 ,  C23C2/06 ,  C22C38/04

CPC classification number: B32B15/013 ,  B32B15/01 ,  B32B15/04 ,  B32B15/18 ,  C21D1/26 ,  C21D1/74 ,  C21D3/06 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0278 ,  C21D9/46 ,  C22C18/00 ,  C22C18/04 ,  C22C38/00 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C2/02 ,  C23C2/06 ,  C23C2/40 ,  Y10T428/12799 ,  Y10T428/12972 ,  Y10T428/12993

Abstract: A high-strength galvanized steel sheet includes a base steel sheet having a specific chemical composition and a zinc coating layer disposed on the surface of the base steel sheet in a coating weight per side of 20 g/m2 to 120 g/m2, wherein the amount of hydrogen measured by a specific method is 0.05 mass ppm to 0.40 mass ppm; and ISisur/ISibulk and IMnsur/IMnbulk calculated by a specific method are not more than 2.0 and not more than 3.0, respectively.

Abstract translation: 高强度镀锌钢板包括具有特定化学成分的基体钢板和设置在基体钢板表面上的镀锌层，每面涂层重量为20g / m 2至120g / m 2，其中， 通过特定方法测量的氢的量为0.05质量ppm至0.40质量ppm; 和通过特定方法计算的ISisur / ISibulk和IMnsur / IMnbulk分别不大于2.0且不大于3.0。