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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
Applicant: JFE STEEL CORPORATION
Inventor： Katsuya Hoshino , Shoichiro Taira , Wataru Tanimoto , Masayasu Nagoshi
IPC: C23C8/80 , B08B3/08 , C23C22/60 , C23C22/07 , C23C22/83 , C23C22/53 , C23C2/06 , C23C2/26 , C23C22/78 , C23C28/00
CPC classification number: C23C22/07 , C23C2/06 , C23C2/26 , C23C22/53 , C23C22/60 , C23C22/78 , C23C22/83 , C23C28/321 , C23C28/345
Abstract: 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：US20160024660A1
公开(公告)日：2016-01-28
申请号：US14761133
申请日：2014-01-14
Applicant: JFE STEEL CORPORATION
Inventor： Katsuya Hoshino , Shoichiro Taira , Wataru Tanimoto , Masayasu Nagoshi
CPC classification number: C23C22/07 , C23C2/06 , C23C2/26 , C23C22/53 , C23C22/60 , C23C22/78 , C23C22/83 , C23C28/321 , C23C28/345
Abstract: 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.
Abstract translation: 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：US20160002807A1
公开(公告)日：2016-01-07
申请号：US14770498
申请日：2014-02-26
Applicant: JFE STEEL CORPORATION
Inventor： Shoichiro Taira , Wataru Tanimoto
IPC: C25D5/36 , C21D1/26 , C21D6/00 , C23C22/07 , C25D3/22 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , C23G1/08 , C21D9/46 , C23F17/00
CPC classification number: C25D5/36 , B32B15/013 , C21D1/26 , C21D6/005 , C21D6/008 , C21D8/0236 , C21D9/46 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C23C22/07 , C23F17/00 , C23G1/08 , C25D3/22 , C25D5/48 , C25D7/0614 , C25F1/06
Abstract: A process of manufacturing high-strength cold rolled steel sheets containing 0.5 to 2.0 mass % silicon includes a pickling step of thermally annealing a steel sheet in a non-oxidizing atmosphere and thereafter pickling the steel sheet to dissolve away 0.5 g/m2 to less than 2.0 g/m2 of the steel sheet, and an electroplating step of electroplating the surface of the pickled steel sheet with zinc under such conditions that a coating mass of 100 to 5000 mg/m2 is obtained.
Abstract translation: 含有0.5〜2.0质量％硅的高强度冷轧钢板的制造方法包括在非氧化性气氛中对钢板进行热退火的酸洗工序，然后酸洗钢板以0.5g / m 2以下，以小于 2.0g / m 2的钢板，以及在获得100〜5000mg / m 2的涂布质量的条件下用锌电镀酸洗的钢板表面的电镀工序。
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公开(公告)号：USRE45821E1
公开(公告)日：2015-12-22
申请号：US14319298
申请日：2014-06-30
Applicant: JFE Steel Corporation
Inventor： Yoichi Makimizu , Sakae Fujita , Naoto Yoshimi , Masahiko Tada , Shinji Ootsuka , Hiroyuki Masuoka , Katsuya Hoshino , Hiroshi Kajiyama , Masayasu Nagoshi , Wataru Tanimoto , Kyoko Fujimoto
IPC: B32B15/18 , B32B15/04 , A61F13/511 , A61F13/514 , A61F13/513
CPC classification number: A61F13/511 , A61F13/5116 , A61F13/51305 , A61F13/51401 , C23C2/26 , C23C22/53 , Y10T428/12611 , Y10T428/12785 , Y10T428/12792 , Y10T428/12799 , Y10T428/265
Abstract: A zinc-based metal plated steel sheet is excellent in tribological properties during press forming. An oxide layer containing crystalline 3Zn(OH)2·ZnSO4·xH2O is formed on a plated surface. The oxide layer has a thickness of 10 nm or more. The crystalline oxide layer is composed of 3Zn(OH)2·ZnSO4·3-5H2O.
Abstract translation: 锌基金属镀覆钢板在冲压成形时的摩擦学性能优异。 在镀面上形成含有结晶3Zn（OH）2·ZnSO 4·xH 2 O的氧化物层。 氧化层的厚度为10nm以上。 结晶氧化物层由3Zn（OH）2·ZnSO4·3-5H2O组成。
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