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公开(公告)号：US10392706B2
公开(公告)日：2019-08-27
申请号：US15121589
申请日：2015-02-27
IPC分类号： C23C22/53 , C23C22/50 , C23C22/83 , C23C2/06 , C23C2/26 , C23C2/40 , C23C28/00 , C23C22/62 , C23C22/78
摘要： A method for producing a galvanized steel sheet includes an oxide layer forming step of bringing a galvanized steel sheet into contact with an acidic solution containing sulfate ions, then holding the galvanized steel sheet in contact for 1 to 60 seconds, and then washing the galvanized steel sheet with water; and a neutralization treatment step of holding a surface of an oxide layer, which has been formed in the oxide layer forming step, in contact with an alkaline aqueous solution for 0.5 seconds or longer, and then performing washing with water and drying. The alkaline aqueous solution contains P ions at a P concentration of 0.01 g/L or more and carbonate ions at a carbonate ion concentration of 0.1 g/L or more.
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公开(公告)号：US10351960B2
公开(公告)日：2019-07-16
申请号：US15122036
申请日：2015-02-27
IPC分类号： C23C22/53 , B32B15/04 , C23C22/83 , C23C2/06 , C23C2/26 , C23C2/40 , C25D5/00 , C23C28/00 , B32B15/18 , C23C2/28
摘要： Provided is a method for producing a galvanized steel sheet that includes an oxide layer forming step of bringing a galvanized steel sheet into contact with an acidic solution containing sulfate ions, then holding the galvanized steel sheet in contact for 1 to 60 seconds, and then washing the galvanized steel sheet with water; and a neutralization treatment step of holding a surface of an oxide layer, which has been formed in the oxide layer forming step, in contact with an alkaline aqueous solution for 0.5 seconds or longer, and then performing washing with water and drying. The alkaline aqueous solution contains 0.1 g/L or more of carbonate ions.
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公开(公告)号：US20140272668A1
公开(公告)日：2014-09-18
申请号：US14355661
申请日：2012-11-28
发明人： Masayasu Nagoshi , Shinsuke Ide , Shin Ishikawa , Noriko Makiishi
IPC分类号： H01M8/02
CPC分类号： H01M8/021 , C21D6/004 , C21D8/0278 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/18 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50 , G01R27/205 , H01M8/0254 , H01M8/0265 , H01M2008/1095 , Y02E60/50
摘要： A stainless steel having a low surface contact resistance for fuel cell separators is provided. The stainless steel has a Cr content of 16 to 40 mass % or more. The stainless steel includes a region having a fine textured structure on its surface, and the area percentage of the region is 50% or more, preferably 80% or more. The region having a fine textured structure is a region which has a structure having depressed portions and raised portions at an average interval between depressed portions or raised portions of 20 nm or more and 150 nm or less when observed with a scanning electron microscope.
摘要翻译： 提供了一种燃料电池隔板具有低表面接触电阻的不锈钢。 不锈钢的Cr含量为16〜40质量％以上。 不锈钢表面具有细纹理结构的区域，该区域的面积百分比为50％以上，优选为80％以上。 具有细纹理结构的区域是当用扫描电子显微镜观察时，具有凹陷部分和凸起部分之间的平均间隔为20nm以上且150nm以下的结构的区域。
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公开(公告)号：US10889875B2
公开(公告)日：2021-01-12
申请号：US16432274
申请日：2019-06-05
发明人： Masayasu Nagoshi , Tomohiro Matsushima , Makoto Watanabe , Shigehiro Takajo , Toshito Takamiya , Masanori Uesaka , Takashi Terashima
IPC分类号： C21D9/46 , G01N21/62 , H01F1/18 , C21D8/12 , G01N23/225 , H01F1/16 , C22C38/02 , G01N23/2251 , H01F27/245 , H02K1/02 , H02K1/06
摘要： A grain oriented electrical steel sheet comprising a grain oriented electrical steel sheet having a surface and a forsterite film formed on the surface of the steel sheet, wherein a total area percentage of defective parts scattered on the forsterite film is less than 1.5% relative to a surface area of the forsterite film when viewed from above the surface, and methods for evaluating a grain oriented electrical steel sheet comprising a grain oriented electrical steel sheet having a surface and a forsterite film formed on the surface of the steel sheet.
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公开(公告)号：US09871258B2
公开(公告)日：2018-01-16
申请号：US15352266
申请日：2016-11-15
发明人： Masayasu Nagoshi , Shinsuke Ide , Shin Ishikawa , Noriko Makiishi
IPC分类号： H01M8/021 , C22C38/18 , C22C38/50 , C21D6/00 , C21D8/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/48 , G01R27/20 , H01M8/0254 , H01M8/0265 , H01M8/1018
CPC分类号： H01M8/021 , C21D6/004 , C21D8/0278 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/18 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50 , G01R27/205 , H01M8/0254 , H01M8/0265 , H01M2008/1095 , Y02E60/50
摘要： A stainless steel having a low surface contact resistance for fuel cell separators is provided. The stainless steel has a Cr content of 16 to 40 mass % or more. The stainless steel includes a region having a fine textured structure on its surface, and the area percentage of the region is 50% or more, preferably 80% or more. The region having a fine textured structure is a region which has a structure having depressed portions and raised portions at an average interval between depressed portions or raised portions of 20 nm or more and 150 nm or less when observed with a scanning electron microscope.
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公开(公告)号：US09809884B2
公开(公告)日：2017-11-07
申请号：US14761133
申请日：2014-01-14
IPC分类号： C23C8/80 , B08B3/08 , C23C22/60 , C23C22/07 , C23C22/83 , C23C22/53 , C23C2/06 , C23C2/26 , C23C22/78 , C23C28/00
CPC分类号： C23C22/07 , C23C2/06 , C23C2/26 , C23C22/53 , C23C22/60 , C23C22/78 , C23C22/83 , C23C28/321 , C23C28/345
摘要： There is provided a method for manufacturing a galvanized steel sheet that has low sliding resistance in press forming and good degreasing property even under severe alkaline degreasing treatment conditions due to low temperature and short process line length. An oxide layer formed on the surface of a galvanized steel sheet is subjected to neutralization treatment using an alkaline aqueous solution containing 0.01 g/L or more of P ions and 0.01 g/L or more of colloid dispersed particles, wherein the alkaline aqueous solution preferably contains at least one phosphorus compound selected from phosphates, pyrophosphates, and triphosphates and at least one type of colloid dispersed particles selected from Ti, silica, Pt, Pd, Zr, Ag, Cu, Au, and Mg.
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公开(公告)号：US09939382B2
公开(公告)日：2018-04-10
申请号：US14776825
申请日：2014-03-24
CPC分类号： G01N21/66 , C21D8/12 , C21D8/1283 , G01N21/8851 , G01N21/95 , G01N23/2254 , G01N2021/8887 , H01F1/16
摘要： The location where forsterite is present is checked in a region from which light excited by an electron beam is emitted when a material containing forsterite is irradiated with an electron beam. The material is preferably a grain oriented electrical steel sheet having a forsterite layer. In addition, it is preferable that the accelerating voltage be 10 kV or more when an electron beam is radiated when the material is a grain oriented electrical steel sheet having a tension coating layer on the forsterite layer.
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公开(公告)号：US09531014B2
公开(公告)日：2016-12-27
申请号：US14355661
申请日：2012-11-28
发明人： Masayasu Nagoshi , Shinsuke Ide , Shin Ishikawa , Noriko Makiishi
CPC分类号： H01M8/021 , C21D6/004 , C21D8/0278 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/18 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50 , G01R27/205 , H01M8/0254 , H01M8/0265 , H01M2008/1095 , Y02E60/50
摘要： A stainless steel having a low surface contact resistance for fuel cell separators is provided. The stainless steel has a Cr content of 16 to 40 mass % or more. The stainless steel includes a region having a fine textured structure on its surface, and the area percentage of the region is 50% or more, preferably 80% or more. The region having a fine textured structure is a region which has a structure having depressed portions and raised portions at an average interval between depressed portions or raised portions of 20 nm or more and 150 nm or less when observed with a scanning electron microscope.
摘要翻译： 提供了一种燃料电池隔板具有低表面接触电阻的不锈钢。 不锈钢的Cr含量为16〜40质量％以上。 不锈钢表面具有细纹理结构的区域，该区域的面积百分比为50％以上，优选为80％以上。 具有细纹理结构的区域是当用扫描电子显微镜观察时，具有凹陷部分和凸起部分之间的平均间隔为20nm以上且150nm以下的结构的区域。
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公开(公告)号：US20160024660A1
公开(公告)日：2016-01-28
申请号：US14761133
申请日：2014-01-14
CPC分类号： C23C22/07 , C23C2/06 , C23C2/26 , C23C22/53 , C23C22/60 , C23C22/78 , C23C22/83 , C23C28/321 , C23C28/345
摘要： There is provided a method for manufacturing a galvanized steel sheet that has low sliding resistance in press forming and good degreasing property even under severe alkaline degreasing treatment conditions due to low temperature and short process line length. An oxide layer formed on the surface of a galvanized steel sheet is subjected to neutralization treatment using an alkaline aqueous solution containing 0.01 g/L or more of P ions and 0.01 g/L or more of colloid dispersed particles, wherein the alkaline aqueous solution preferably contains at least one phosphorus compound selected from phosphates, pyrophosphates, and triphosphates and at least one type of colloid dispersed particles selected from Ti, silica, Pt, Pd, Zr, Ag, Cu, Au, and Mg.
摘要翻译： 提供了一种制造镀锌钢板的方法，即使在严酷的碱性脱脂处理条件下，由于低温和短的生产线长度，在压制成型中具有低的滑动阻力和良好的脱脂性能。 使用含有0.01g / L以上的P离子和0.01g / L以上的胶体分散粒子的碱性水溶液对形成在镀锌钢板表面上的氧化物层进行中和处理，其中优选 含有选自磷酸盐，焦磷酸盐和三磷酸盐中的至少一种磷化合物和选自Ti，二氧化硅，Pt，Pd，Zr，Ag，Cu，Au和Mg中的至少一种胶体分散颗粒。
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公开(公告)号：US10697038B2
公开(公告)日：2020-06-30
申请号：US15514746
申请日：2015-09-11
发明人： Masayasu Nagoshi , Tomohiro Matsushima , Makoto Watanabe , Shigehiro Takajo , Toshito Takamiya , Masanori Uesaka , Takashi Terashima
IPC分类号： C21D9/46 , G01N21/62 , H01F1/18 , C21D8/12 , G01N23/225 , H01F1/16 , C22C38/02 , G01N23/2251 , H01F27/245 , H02K1/02 , H02K1/06
摘要： A grain oriented electrical steel sheet comprising a grain oriented electrical steel sheet having a surface and a forsterite film formed on the surface of the steel sheet, wherein a total area percentage of defective parts scattered on the forsterite film is less than 1.5% relative to a surface area of the forsterite film when viewed from above the surface, and methods for evaluating a grain oriented electrical steel sheet comprising a grain oriented electrical steel sheet having a surface and a forsterite film formed on the surface of the steel sheet.
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