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91. 发明专利

JP2011236469A Cold-rolled steel sheet, and method for producing the same 有权
标题翻译：冷轧钢板及其制造方法
公开(公告)号：JP2011236469A
公开(公告)日：2011-11-24
申请号：JP2010109048
申请日：2010-05-11
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： YAMASHITA TAKAKO , SUGIHARA REIKO , MEGA TETSUYA , NAGATAKI YASUNOBU , IIZUKA TOSHIHARU , WATANABE KYOJI
IPC分类号： C22C38/00 , C21D9/46 , C22C38/60
CPC分类号： C22C38/004 , C21D8/04 , C21D8/0405 , C21D9/48 , C21D2211/004 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a cold-rolled steel sheet capable of obtaining uniform appearance and shape uniformity after press working without performing special treatment, in a Ti-containing IF steel sheet having excellent deep drawability, and to provide a method for producing the same.SOLUTION: The cold-rolled steel sheet to be a Ti-adding IF steel sheet contains 0.02 to 0.1% Ti, ≤0.03% Sb and >0.005% and ≤0.03% Cu, contains Ti* defined by Ti*=(Ti%)-3.4×(N%)-1.5×(S%)-4×(C%) in the range satisfying 0
摘要翻译：解决的问题：为了提供一种在具有优异的深冲性的含钛IF钢板中提供能够在冲压加工后获得均匀的外观和形状均匀性的冷轧钢板，并且提供一种方法为了生产相同。＆lt; P＆gt;解决方案：作为Ti添加IF钢板的冷轧钢板包含0.02〜0.1％的Ti，≤0.03％的Sb，> 0.005％和≤0.03％的Cu，含有Ti * 在满足0

92. 发明专利

JP2011168880A High-strength hot-dip galvanized steel sheet excellent in burr resistance and process for producing the same 有权
标题翻译：高强度热镀锌钢板优良的耐电弧性能及其生产工艺
公开(公告)号：JP2011168880A
公开(公告)日：2011-09-01
申请号：JP2010262090
申请日：2010-11-25
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： NAGATAKI YASUNOBU , KAWASAKI YOSHIYASU , NAKAGAITO TATSUYA , KANEKO SHINJIRO
IPC分类号： C22C38/00 , C21D9/46 , C22C38/06 , C22C38/60
CPC分类号： C23C2/06 , B32B15/013 , C21D8/0205 , C21D9/46 , C21D2211/002 , C21D2211/005 , C21D2211/009 , C22C38/001 , C22C38/002 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/38 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a high-strength hot-dip galvanized steel sheet which is excellent in burr resistance, i.e., low in the height of burrs, and a process for producing the steel sheet. SOLUTION: The galvanized steel sheet has a composition which contains, by mass%, 0.04-0.13% C, 1.0-2.3% Si, 0.8-2.0% Mn, ≤0.05% P, 0.0010-0.01% S, ≤0.1% Al, and ≤0.008% N, and the balance Fe with inevitable impurities. The galvanized steel sheet has a structure which comprises, in terms of areal proportion, ≥75% ferrite phase, ≥1% bainitic ferrite phase, and ≥1% and ≤10% pearlite phase, has a martensite phase content of COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种抗毛刺性高，即毛刺高度低的高强度热浸镀锌钢板，以及钢板的制造方法。解决方案：镀锌钢板具有以质量％计含有0.04-0.13％C，1.0-2.3％Si，0.8-2.0％Mn，≤0.05％P，0.0010-0.01％S，≤0.1的组合物％Al和≤0.008％N，余量为Fe与不可避免的杂质。镀锌钢板的面积比为75％以上铁素体相，≥1％贝氏体相，≥1％，≤10％的珠光体相，其马氏体相含量<5％面积比例满足（马氏体的面积比）/（（贝氏体铁素体的面积比）+（珠光体的面积比例））≤0.5。镀锌钢板具有优异的抗毛刺性。版权所有（C）2011，JPO＆INPIT

93. 发明专利

JP2011168879A High-strength hot-dip galvanized steel sheet with excellent processability and spot weldability and method for producing same 有权
标题翻译：具有优异的可加工性和点焊性的高强度热镀锌钢化片及其生产方法
公开(公告)号：JP2011168879A
公开(公告)日：2011-09-01
申请号：JP2010262089
申请日：2010-11-25
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： KANEKO SHINJIRO , NAKAGAITO TATSUYA , KAWASAKI YOSHIYASU , NAGATAKI YASUNOBU
IPC分类号： C22C38/00 , C21D9/46 , C22C38/06 , C22C38/60
CPC分类号： C23C2/06 , B32B15/013 , C21D8/0205 , C21D9/46 , C21D2211/002 , C21D2211/005 , C21D2211/009 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/02 , C23C2/28
摘要： PROBLEM TO BE SOLVED: To provide a high-strength hot-dip galvanized steel sheet which has high strength (tensile strength TS of 540 MPa or higher) and has excellent processability (high ductility and high hole-expansibility) and spot weldability, and to provide a method for producing the steel sheet.
SOLUTION: The high-strength hot-dip galvanized steel sheet has a composition which contains, in terms of mass%, 0.04%-0.10% C, 0.7%-2.3% Si, 0.8%-2.0% Mn, ≤0.03% P, ≤0.003% S, ≤0.1% Al, and ≤0.008% N, and satisfies [C%]×[Si%]≤0.20 (wherein [C%] and [Si%] indicate the contents (mass%) of C and Si, respectively), with the remainder comprising iron and inevitable impurities. The galvanized steel sheet has a structure which comprises, in terms of areal proportion, ≥75% ferrite phase, ≥1% bainitic ferrite phase, and 1%-10% pearlite phase, has a martensite phase content of
摘要翻译：要解决的问题：提供一种高强度（拉伸强度TS为540MPa以上）并具有优异的加工性（高延展性，高扩孔性）和点焊性的高强度热浸镀锌钢板，并提供钢板的制造方法。解决方案：高强度热浸镀锌钢板具有以质量％计含有0.04％-0.10％C，0.7％-2.3％Si，0.8％-2.0％Mn，≤0.03 ％P，≤0.003％S，≤0.1％Al和≤0.008％N，满足[C％]×[Si％]≤0.20（其中[C％]和[Si％]表示含量（质量％）的C和Si），其余部分包含铁和不可避免的杂质。镀锌钢板的面积比为75％以上的铁素体相，≥1％的贝氏体相和1％〜10％的珠光体相，其结果是：马氏体相含量<5％面积比例满足（马氏体的面积比）/（（贝氏体铁素体的面积比）+（珠光体的面积比））≤0.6。版权所有（C）2011，JPO＆INPIT

94. 发明专利

JP2010255097A High-strength hot-dip galvanized steel sheet superior in workability, and manufacturing method therefor 有权
标题翻译：高强度热镀锌钢板优越的可加工性及其制造方法
公开(公告)号：JP2010255097A
公开(公告)日：2010-11-11
申请号：JP2009291832
申请日：2009-12-24
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： KAWASAKI YOSHIYASU , NAKAGAITO TATSUYA , KANEKO SHINJIRO , MATSUOKA SAIJI , NAGATAKI YASUNOBU
IPC分类号： C22C38/00 , C21D9/46 , C22C38/06 , C22C38/58 , C23C2/06 , C23C2/28
CPC分类号： C21D9/46 , C21D8/0205 , C21D2211/001 , C21D2211/002 , C21D2211/005 , C21D2211/009 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/18 , C23C2/02 , C23C2/06 , C23C2/28 , C23C2/40 , Y10T428/31678
摘要： PROBLEM TO BE SOLVED: To provide a high-strength hot-dip galvanized steel sheet which has high strength (a tensile strength TS of 590 MPa or higher) and excellent workability (high ductility and high hole-expandability), and to provide a method for manufacturing the same. SOLUTION: The high-strength galvanized steel sheet superior in the workability has a component composition comprising, by mass%, 0.04-0.15% C, 0.7-2.3% Si, 0.8-2.2% Mn, 0.1% or less P, 0.01% or less S, 0.1% or less Al, 0.008% or less N and the balance iron with unavoidable impurities; has a structure including 70% or more of a ferrite phase, 2-10% of a bainite phase and 0-12% of a pearlite phase by an area rate, and 1-8% by a volume fraction of a retained austenite phase; and has the ferrite of which the average crystal grain size is 18 μm or smaller and the retained austenite of which the average crystal grain size is 2 μm or smaller. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决的问题：提供一种高强度（拉伸强度TS为590MPa以上）和优异的加工性（高延展性，高扩孔性）的高强度热浸镀锌钢板，并且提供其制造方法。解决方案：加工性优异的高强度镀锌钢板具有以质量％计含有0.04-0.15％C，0.7-2.3％Si，0.8-2.2％Mn，0.1％以下P， 0.01％以下S，0.1％以下Al，0.008％以下N，余量为不可避免杂质的铁; 具有70％以上的铁素体相，2％〜10％的贝氏体相和0〜12％的珠光体相的面积率，1-8％的残留奥氏体相的体积分率的结构。并且具有平均晶粒尺寸为18μm以下的铁素体，平均结晶粒径为2μm以下的残留奥氏体。版权所有（C）2011，JPO＆INPIT

95. 发明专利

JP2010013700A High strength hot dip galvanized steel sheet having excellent workability, and method for producing the same 有权
标题翻译：具有优异的可加工性的高强度热镀锌钢板及其制造方法
公开(公告)号：JP2010013700A
公开(公告)日：2010-01-21
申请号：JP2008174751
申请日：2008-07-03
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： KAWABE HIDENAO , NAGATAKI YASUNOBU , TANAKA YASUSHI
IPC分类号： C22C38/00 , C21D9/46 , C22C38/38 , C23C2/06
摘要： PROBLEM TO BE SOLVED: To provide a hot dip galvanized steel sheet which has excellent workability, particularly in stretch flange formability, and has a tensile strength (TS) of ≥590 MPa.
SOLUTION: The hot dip galvanized steel sheet has a composition comprising, by mass, 0.06 to 0.09% C, ≤0.1% Si, 1.5 to 2.0% Mn, ≤0.020% P, ≤0.0020% S, 0.005 to 0.050% Al, ≤0.0050% N, 0.05 to 0.4% Cr, 0.005 to 0.020% Ti, 0.005 to 0.050% Nb and 0.0001 to 0.0020% Ca, and the balance Fe with inevitable impurities and a steel structure composed of, by volume fraction, a ferritic phase of 80 to 90%, a martensitic phase of 10 to 20%, and the balance structure of ≤5% (including 0%), and in which the average crystal grain size of the ferritic phase is controlled to 5 to 10 μm, the size of MnS present in the steel structure is controlled to ≤50 μm by the major axis, and the number of pieces of the MnS is controlled to ≤500 pieces/mm
2 .
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有优异的加工性，特别是拉伸凸缘成形性的热浸镀锌钢板，其拉伸强度（TS）≥590MPa。热浸镀锌钢板的组成为：以质量计含有0.06〜0.09％的C，≤0.1％的Si，1.5〜2.0％的Mn，≤0.020％的P，≤0.0020％的S，0.005〜0.050％ Al，≤0.0050％N，0.05〜0.4％Cr，0.005〜0.020％Ti，0.005〜0.050％Nb和0.0001〜0.0020％Ca，余量为Fe与不可避免的杂质，钢结构体积分数为铁素体相为80〜90％，马氏体相为10〜20％，平衡结构为≤5％（含0％），铁素体相的平均结晶粒径控制在5〜10μm ，通过长轴将钢结构中存在的MnS的尺寸控制为≤50μm，并且将MnS的数量控制为≤500个/ mm 2 。版权所有（C）2010，JPO＆INPIT

96. 发明专利

JP2009197251A High-strength steel sheet having superior ductility and manufacturing method therefor 有权
标题翻译：具有超高强度的高强度钢板及其制造方法
公开(公告)号：JP2009197251A
公开(公告)日：2009-09-03
申请号：JP2008036870
申请日：2008-02-19
申请人： Jfe Steel Corp , Jfeスチール株式会社 , Thyssenkrupp Stahl Ag , ティッセンクルップスチールアクチェンゲゼルシャフトThyssenKrupp Steel AG
发明人： KAWAMURA KENJI , KIZU TARO , TAKAGI SHUSAKU , HASEGAWA KOHEI , MATSUDA HIROSHI , KOBAYASHI SATOO , NAGATAKI YASUNOBU , TANAKA YASUSHI , HELLER THOMAS , HAMMER BRIGITTE , BIAN JIAN , STICH GUENTER , BODE ROLF
IPC分类号： C22C38/00 , C21D9/46 , C22C38/38 , C22C38/58
CPC分类号： C21D9/48 , C21D8/0426 , C21D8/0473 , C21D9/46 , C21D2211/005 , C21D2211/008 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/28 , C22C38/32 , C22C38/38 , C23C2/02 , C23C2/28 , Y10T428/12799 , Y10T428/12972
摘要： PROBLEM TO BE SOLVED: To provide a high-strength steel sheet which has a tensile strength of 950 MPa or higher and high ductility, also has superior chemical conversion treatability and hot-dip galvanizing properties, and besides, has little fluctuation of mechanical characteristics with respect to the change of an annealing condition, and to provide a manufacturing method therefor. SOLUTION: The high-strength steel sheet has a component composition comprising, 0.05 to 0.20 mass% C, 0.5 mass% or less Si, 1.5 to 3.0 mass% Mn, 0.06 mass% or less P, 0.01 mass% or less S, 0.3 to 1.5 mass% Al, 0.02 mass% or less N, 0.01 to 0.1 mass% Ti and 0.0005 to 0.0030 mass% B, further one or two of 0.1 to 1.5 mass% Cr and 0.01 to 2.0 mass% Mo, and the balance Fe with unavoidable impurities; has a microstructure containing ferrite and martensite; and has the tensile strength of 950 MPa or higher. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供拉伸强度为950MPa以上，延展性高的高强度钢板，还具有优异的化学转化处理性和热浸镀锌性，而且还具有很小的波动关于退火条件变化的机械特性，并提供其制造方法。解决方案：高强度钢板具有以下成分组成：0.05〜0.20质量％的C，0.5质量％以下的Si，1.5〜3.0质量％的Mn，0.06质量％以下的P，0.01质量％以下 S，0.3〜1.5质量％Al，0.02质量％以下N，0.01〜0.1质量％的Ti和0.0005〜0.0030质量％的B，进一步的0.1〜1.5质量％的Cr和0.01〜2.0质量％的Mo，以及余量Fe与不可避免的杂质; 具有含有铁素体和马氏体的微结构; 拉伸强度为950MPa以上。版权所有（C）2009，JPO＆INPIT

97. 发明专利

JP2009132981A High-strength cold-rolled steel sheet having small in-plane anisotropy of elongation, and manufacturing method therefor 有权
标题翻译：具有小型平面结构的高强度冷轧钢板及其制造方法
公开(公告)号：JP2009132981A
公开(公告)日：2009-06-18
申请号：JP2007311346
申请日：2007-11-30
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： MIZUNO REIKO , OKUDA KANEHARU , NAGATAKI YASUNOBU , MATSUDA HIROSHI , TANAKA YASUSHI
IPC分类号： C22C38/00 , C21D9/48 , C22C38/06
摘要： PROBLEM TO BE SOLVED: To provide a high-strength cold-rolled steel sheet which has a small in-plane anisotropy of elongation, superior press formability, and a tensile strength (TS) of 440 MPa or more, without containing special elements such as Nb, Mo, Cr, Cu, Ni and Ti.
SOLUTION: This steel sheet has a composition including, by mass, 0.030 to 0.20% C, 1.5% or less Si, 1.0 to 2.5% Mn, 0.005 to 0.1% P, 0.01% or less S, 0.005 to 1.5% Al, 0.01% or less N, and the balance Fe with unavoidable impurities; and contains a ferrite phase of 85 to 99% as a parent phase, and a second phase including a martensite phase of 1 to 15% by an area rate with respect to the whole metallurgical structure; and contains the martensite phase of 1 to 13% by an area rate with respect to the whole metallurgical structure. Furthermore, an average crystal orientation density (I) in a range of Φ=25 to 35° expressed by an ODF (crystal orientation distribution function) among α fibers is 2.0 to 4.0 in a texture of the sheet plane in the 1/4 deep position of the thickness of the steel sheet.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：为了提供具有440MPa以上的伸长率的面内各向异性小，冲压成形性优异，拉伸强度（TS）在440MPa以上的高强度冷轧钢板，不含特殊的元素如Nb，Mo，Cr，Cu，Ni和Ti。解决方案：该钢板具有质量分数为0.030〜0.20％的C，1.5％以下的Si，1.0〜2.5％的Mn，0.005〜0.1％的P，0.01％以下的S，0.005〜1.5％ Al，0.01％以下N，余量为Fe与不可避免的杂质; 并且含有作为母相的85〜99％的铁素体相和相对于整个冶金结构的面积率为1〜15％的马氏体相的第2相。并且相对于整个冶金结构，面积率为1〜13％的马氏体相。此外，α纤维中的由ODF（晶体取向分布函数）表示的Φ= 25〜35°的范围内的平均结晶取向密度（I）在1/4深度的片材的质地中为2.0〜4.0 钢板厚度的位置。版权所有（C）2009，JPO＆INPIT

98. 发明专利

JP2009102673A High-tension cold-rolled steel sheet, high tension galvanized steel sheet, and producing method therefor 有权
标题翻译：高张力冷轧钢板，高强度钢化钢板及其生产方法
公开(公告)号：JP2009102673A
公开(公告)日：2009-05-14
申请号：JP2007273292
申请日：2007-10-22
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： KOBAYASHI TAKASHI , OKUDA KANEHARU , NAGATAKI YASUNOBU
IPC分类号： C22C38/00 , B21B3/00 , C21D9/46 , C22C38/06 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To provide a high-tension cold-rolled steel sheet and a high-tension galvanized steel sheet which are excellent in a drawing formability, baking hardenability and surface-strain resistance, and to provide a producing method therefor. SOLUTION: The high tension cold-rolled steel sheet contains 0.005-0.007% C, ≤0.1% Si, 0.5-1.5% Mn, 0.02-0.10% P, ≤0.02% S, 0.01-0.08% Al, ≤0.005% N, Nb so as to satisfy inequalities of 1.2≤([Nb]/93)/([C]/12+[N]/14)≤2.4 and [Nb]×([C]+[N]×12/14)≥4.0×10 -4 , and the balance Fe with inevitable impurities. Instead of the inequalities, a part of Nb can be replaced with Ti so as to satisfy 1.0≤([Ti]/48)/([N]/14)≤3.0, 1.2≤([Nb]/93)/([C]/12)≤2.4 and [Nb]×[C]≥4.0×10 -4 . The structure is polygonal-ferrite single-phase structure. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供拉伸成形性，烘烤硬化性和表面耐应变性优异的高张力冷轧钢板和高压镀锌钢板，并提供其制造方法。
解决方案：高压冷轧钢板含有0.005-0.007％C，≤0.1％Si，0.5-1.5％Mn，0.02-0.10％P，≤0.02％S，0.01-0.08％Al，≤0.005 ％[N] / Nb，以满足不等式1.2≤（[Nb] / 93）/（[C] / 12 + [N] / 14）≤2.4和[Nb]×（[C] + [N]×12 / 14）≥4.0×10 -4 ，余量为Fe和不可避免的杂质。为了满足1.0≤（[Ti] / 48）/（[N] / 14）≤3.0,1.2≤（[Nb] / 93）/（[ C] / 12）≤2.4，[Nb]×[C]≥4.0×10 -4 。结构为多边形铁素体单相结构。版权所有（C）2009，JPO＆INPIT

99. 发明专利

JP2015054990A 外観性とめっき密着性に優れる溶融亜鉛めっき鋼板および合金化溶融亜鉛めっき鋼板ならびにそれらの製造方法有权
标题翻译：具有优良外观和镀层粘合剂的合金钢板和合金钢化板及其制造方法
公开(公告)号：JP2015054990A
公开(公告)日：2015-03-23
申请号：JP2013188920
申请日：2013-09-12
申请人： Jfeスチール株式会社 , Jfe Steel Corp
发明人： TANAKA MINORU , SUZUKI YOSHITSUGU , NAGATAKI YASUNOBU
IPC分类号： C23C2/02 , C22C38/00 , C22C38/60 , C23C2/06
CPC分类号： C22C38/34 , B32B15/013 , C21D1/52 , C21D1/74 , C21D1/76 , C21D6/004 , C21D6/005 , C21D6/008 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0247 , C21D8/0263 , C21D8/0278 , C21D9/46 , C21D9/56 , C21D9/561 , C21D2211/004 , C21D2211/005 , C22C18/00 , C22C18/04 , C22C38/00 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/20 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50 , C22C38/54 , C22C38/58 , C23C2/02 , C23C2/06 , C23C2/28 , C23C2/36 , C23C2/40
摘要：【課題】高Si含有鋼板を母材として表面欠陥のない美麗な外観を有するめっき密着性に優れた溶融亜鉛めっき鋼板及び合金化溶融亜鉛めっき鋼板並びにそれらの製造方法を提供する。【解決手段】mass%で、C:0.08〜0.20%、Si:0.1〜3.0%、Mn:0.5〜3.0%、P:0.001%〜0.10%、Al:0.01%〜3.00%、S:0.200%以下を含有し、残部Fe及び不可避的不純物からなる成分組成を有し、地鉄と亜鉛めっき層との界面から地鉄側に5μm以下の厚さの内部酸化層、及び、地鉄と亜鉛めっき層との界面から地鉄側に20μm以下の厚さの脱炭層を有し、更に前記内部酸化層はFe2XMn2−2XSiOYで表されるFe及び/又はMnを含むSi酸化物を面積率で50%以上を含むことを特徴とする外観性とめっき密着性に優れる溶融亜鉛めっき鋼板。【選択図】図2
摘要翻译：要解决的问题：提供一种镀锌钢板和使用含高Si钢板作为基材的合金镀锌钢板，并且具有没有表面缺陷和优异的电镀附着力的美观，以及制造方法本发明提供一种具有优异外观和电镀粘附性的镀锌钢板，其组成为0.08-0.20质量％C，0.1-3.0质量％Si，0.5-3.0质量％Mn，0.001-0.10质量％P ，0.01-3.00质量％Al，小于等于0.200质量％的S，以及Fe和其余部分的不可避免的杂质，并且在铁素体一侧的铁素体侧的铁素体相的厚度为5μm以下的内部氧化物层，以及从铁素体与镀锌层之间的边界面在铁素体一侧的厚度为20μm以下的镀锌层和脱碳层，包含由FeMnSiO表示的Fe和/或Mn的Si氧化物的内部氧化物层以50 ％或者更多在面积率方面。

100. 发明专利

JP2014169487A Method of producing high strength hot-dip galvanized steel sheet and high strength hot-dip galvanized steel sheet 有权
标题翻译：生产高强度热镀锌钢板和高强度热镀锌钢板的方法
公开(公告)号：JP2014169487A
公开(公告)日：2014-09-18
申请号：JP2013042456
申请日：2013-03-05
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： FUSHIWAKI YUSUKE , KAWASAKI YOSHIYASU , NAGATAKI YASUNOBU
IPC分类号： C23C2/02 , C21D9/46 , C22C18/00 , C22C38/00 , C22C38/06 , C22C38/60 , C23C2/28
摘要： PROBLEM TO BE SOLVED: To provide: a method of producing a high strength hot-dip galvanized steel sheet which has an excellent plating appearance and corrosion resistance, and also has excellent resistance of plating peeling and workability in working, by using a high strength steel sheet containing Si, Mn as a base material steel sheet; and the high strength hot-dip galvanized steel sheet.SOLUTION: The method of producing the high strength hot-dip galvanized steel sheet uses a steel sheet which contains by mass% C: 0.03-0.35%, Si: 0.01-0.50%, Mn: 3.6-8.0%, Al: 0.001-1.00%, P≤0.10%, S≤0.010%, and the balance comprising Fe and inevitable impurities. In a continuous hot-dip galvanizing equipment, The method employs the condition that a drew point is set to be -40°C or less at an atmosphere where a temperature range in a heating process is 550°C or more and A°C or less(A: an any value satisfying 600≤A≤750).
摘要翻译：要解决的问题：提供一种制造具有优异的电镀外观和耐腐蚀性的高强度热浸镀锌钢板的方法，并且通过使用高强度钢也具有优异的电镀剥离性和加工性能含有Si，Mn作为基材钢板的片材; 高强度热浸镀锌钢板的制造方法。高强度热浸镀锌钢板的制造方法使用以质量％C：0.03〜0.35％，Si：0.01-0.50％，Mn ：3.6〜8.0％，Al：0.001〜1.00％，P≤0.10％，S≤0.010％，余量由Fe和不可避免的杂质构成。在连续热浸镀锌设备中，该方法采用如下条件：在加热过程的温度范围为550℃以上且A℃的情况下，将其设定为-40℃以下，少（A：满足600≤A≤750的任何值）。

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