公开(公告)号：JP2011117037A

公开(公告)日：2011-06-16

申请号：JP2009275413

申请日：2009-12-03

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： NAKAJIMA SEIJI ,  NAKAMARU HIROKI ,  MIYOSHI TATSUYA ,  MASUOKA HIROYUKI

IPC: C23C28/00 ,  B21D22/20

Abstract: PROBLEM TO BE SOLVED: To provide a hot-pressed member capable of reliably obtaining excellent coating adhesiveness and a method for manufacturing the same.
SOLUTION: In the hot-pressed member, an Al-Fe alloy layer, an Si-containing layer, and a ZnO layer are provided in this order on the surface of a steel sheet constituting the member.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够可靠地获得优异的涂料粘合性的热压部件及其制造方法。 解决方案：在热压构件中，在构成构件的钢板的表面上依次设置Al-Fe合金层，含Si层和ZnO层。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2012041610A

公开(公告)日：2012-03-01

申请号：JP2010184840

申请日：2010-08-20

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： NAKAJIMA SEIJI ,  NAKAMARU HIROKI

IPC: C23C2/12 ,  C22C21/00 ,  C22C38/00 ,  C22C38/60 ,  C23C2/20 ,  C23C2/28

Abstract: PROBLEM TO BE SOLVED: To provide a steel sheet for hot pressing, manufacturing method therefor and method for manufacturing hot press member, which can stably obtain the hot press member having excellent adhesiveness and corrosion resistance after coating even when temperature raising speed is increased or holding time is shortened during heating before hot pressing.SOLUTION: There is provided the steel sheet for hot pressing containing: Al-Fe alloy plated layer containing, by mass, Fe, 25-90% and Si, less than 3%, the balance Al with inevitable impurities, a total content of Fe and Al of 97% or more, on a surface of the steel sheet, and deposition amount per one side of the steel sheet of 10-200g/m; and an Al layer having the deposition amount per one side of the steel sheet of 5g/mor less on the Al-Fe alloy plated layer.

Abstract translation: 要解决的问题：提供一种热压用钢板，其制造方法和热压构件的制造方法，其能够稳定地获得涂布后的粘合性和耐腐蚀性优异的热压构件，即使在升温速度为 在热压之前的加热期间，增加或保持时间缩短。 解决方案：提供一种热压用钢板，其特征在于，含有以Fe计为25〜90％，Si为小于3％，Al为不可避免的杂质的Al-Fe合金镀层，总计 在钢板表面上的Fe和Al的含量为97％以上，钢板的每一面的析出量为10〜200g / m 2。 以及在Al-Fe合金镀层上，钢板每一侧的沉积量为5g / m 2以上的Al层。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012001816A

公开(公告)日：2012-01-05

申请号：JP2011154708

申请日：2011-07-13

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： NAKAMARU HIROKI ,  NAKAJIMA SEIJI ,  MIYOSHI TATSUYA ,  MASUOKA HIROYUKI ,  OTSUKA SHINJI

IPC: C23C10/00 ,  B21D22/20 ,  C22C18/00 ,  C22C19/03 ,  C22C38/00 ,  C22C38/60 ,  C23C28/00 ,  C25D5/50

Abstract: PROBLEM TO BE SOLVED: To provide a hot-pressed member which is produced without generating any scale, has excellent adhesion to coatings and excellent corrosion resistance after coating, and is inhibited from corroding and thereby suffering hydrogen penetration into the steel.SOLUTION: The hot-pressed member comprises: a steel sheet that constitutes the member and has a surface layer in which an Ni diffusion region is present; and an intermetallic-compound layer corresponding to the γ-phase present in a phase equilibrium diagram of a Zn-Ni alloy and a ZnO layer on the Ni diffusion region in order, wherein the member has a component composition containing, by mass, 0.15-0.5% of C, 0.05-2.0% of Si, 0.5-3% of Mn, ≤0.1% of P, ≤0.05% of S, ≤0.1% of Al, and ≤0.01% of N, and the balance comprising Fe and inevitable impurities. The hot-pressed member exhibits a natural immersion potential of -600 to -360 mV relative to the standard hydrogen electrode, in a 0.5 M aqueous NaCl solution saturated with air at a temperature of 25°C±0.5°C.

Abstract translation: 要解决的问题：为了提供一种不产生任何氧化皮而制造的热压部件，具有优异的涂层密合性和涂覆后的优异的耐腐蚀性，并且被抑制腐蚀，从而使氢侵入钢中。 解决方案：热压部件包括：构成部件并具有存在Ni扩散区域的表面层的钢板; 以及相对于存在于Ni扩散区域上的Zn-Ni合金和ZnO层的相平衡图中的γ相的金属间化合物层，其中，所述成分具有质量分数为0.15〜 0.5％的C，0.05-2.0％的Si，0.5-3％的Mn，≤0.1％的P，≤0.05％的S，≤0.1％的Al和≤0.01％的N，余量包括Fe和 不可避免的杂质。 在温度为25℃±0.5℃的空气饱和的0.5M NaCl水溶液中，热压构件相对于标准氢电极显示-600〜-360mV的自然浸渍电位。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011122207A

公开(公告)日：2011-06-23

申请号：JP2009281154

申请日：2009-12-11

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： NAKAMARU HIROKI ,  OTSUKA SHINJI ,  MASUOKA HIROYUKI ,  NAKAJIMA SEIJI

IPC: C23C28/00 ,  C22C38/00 ,  C22C38/60

CPC classification number: C23C10/28 ,  C25D3/12 ,  C25D5/48

Abstract: PROBLEM TO BE SOLVED: To provide a hot press member which has excellent hot pressing properties, spot weldability and coating film adhesion, and further can suppress intrusion of hydrogen into a steel due to corrosion. SOLUTION: The hot press member is characterized in that the surface layer part of a steel sheet constituting a member is provided with an Ni-diffused region having an Ni coating weight of 10 to 90,000 mg/m 2 , and the surface of the Ni-diffused region has an inorganic compound. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供热压性，点焊性和涂膜粘合性优异的热压部件，并且还可以抑制腐蚀导致的氢侵入钢中。 解决方案：热压构件的特征在于，构成构件的钢板的表层部分设置有Ni涂层重量为10至90,000mg / m 2的Ni扩散区域， SP>，并且Ni扩散区域的表面具有无机化合物。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011032497A

公开(公告)日：2011-02-17

申请号：JP2009177166

申请日：2009-07-30

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： NAKAJIMA SEIJI ,  NAKAMARU HIROKI ,  OI TOSHIHIKO ,  MASUOKA HIROYUKI

IPC: C23C28/00 ,  C23C2/06

Abstract: PROBLEM TO BE SOLVED: To provide a surface-treated steel sheet for hot pressing, capable of yielding a hot-pressed member excellent in surface corrosion resistance, even when exposed to a corrosive environment after coating, and a method for manufacturing the hot-pressed member using the same.
SOLUTION: The surface-treated steel sheet for hot pressing has a Zn-Al alloy plating layer containing 1-50 mass% Al and an inorganic compound having a melting point of 500-1,000°C deposited in this order on the surface of the steel sheet. The amounts of the Zn-Al alloy plating layer and the inorganic compound deposited are 20-100 g/m
2 and 1-5,000 mg/m
2 , respectively, per one side of the steel sheet.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种热压表面处理钢板，即使在涂布后暴露于腐蚀性环境下，也能够得到表面耐腐蚀性优异的热压构件，以及制造方法 热压成员使用相同的。 解决方案：用于热压的表面处理钢板具有含有1-50质量％Al的Zn-Al合金镀层和在表面上依次沉积的熔点为500-1,000℃的无机化合物 的钢板。 Zn-Al合金镀层和沉积的无机化合物的量分别为20-100g / m 2 SP 2和1-5,000mg / m 2 SP 2 钢板的一面。 版权所有（C）2011，JPO＆INPIT