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1. 发明专利

JP2006097067A Method for producing high strength alloyed hot dip galvanized steel sheet having excellent workability 有权
标题翻译：生产具有优异工作性能的高强度合金热镀锌钢板的方法
公开(公告)号：JP2006097067A
公开(公告)日：2006-04-13
申请号：JP2004283242
申请日：2004-09-29
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： TANAKA HIROSHI , YAMAMOTO TOMOO , MATSUMOTO TAKASHI , HOSOMI KAZUAKI
IPC分类号： C23C2/02 , C22C38/00 , C22C38/04 , C22C38/58 , C23C2/06 , C23C2/40 , C25D5/26
摘要： PROBLEM TO BE SOLVED: To obtain an alloyed hot dip galvanized steel sheet having high strength and excellent workability as well, at the time when a steel sheet comprising Si and Mn is subjected to alloyed hot dip galvanizing, by reducing an alloying heat treatment temperature after plating, so as to prevent deterioration in the mechanical properties of the original sheet.
SOLUTION: In the method for producing a plated steel sheet, an Fe-based plating layer is formed on a steel sheet comprising, by mass, 0.2 to 2.0% Si and 0.5 to 3.0% Mn, thereafter, the steel sheet is annealed under the heating conditions of temperature and time to control the value shown by the formula to ≥1.0, is cooled at the average rate of 2 to 200°C/s, is thereafter subjected to hot dip galvanizing, and is immediately, or after holding at a temperature of 430 to
摘要翻译：要解决的问题为了获得具有高强度和优异加工性的合金化热浸镀锌钢板，在包含Si和Mn的钢板经受合金化热浸镀锌时，通过减少合金化热电镀后的处理温度，以防止原纸的机械性能的劣化。解决方案：在电镀钢板的制造方法中，在含有0.2〜2.0％的Si和0.5〜3.0％的Mn的钢板上形成Fe系镀层，此后，钢板为在温度和时间的加热条件下退火，以将公式所示的值控制为≥1.0，以平均速率2〜200℃/ s冷却，然后进行热浸镀锌，并立即或之后在430〜500℃的温度下保持2秒钟〜2分钟，以≥5℃/秒的冷却速度冷却至≤250℃，以形成合金化的热浸镀锌层钢板：式（1）为[ä980-50×（[Si] + [Mn] / 4）} -t / 4] / T（其中，[Si]，[Mn] ），t为加热时间（T），T为加热温度（℃））。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2004190063A High strength steel sheet having high workability and improved corrosion resistance and spot weldability, and its manufacturing method 有权
公开(公告)号：JP2004190063A
公开(公告)日：2004-07-08
申请号：JP2002356624
申请日：2002-12-09
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： FUJIWARA SUSUMU , OMOSAKO KOJI , TANAKA HIROSHI , YAMAMOTO TOMOO
IPC分类号： B21B1/22 , B21B3/00 , C21D9/46 , C22C38/00 , C22C38/58 , C23G1/08
摘要： PROBLEM TO BE SOLVED: To provide a high strength steel sheet excellent in corrosion resistance of base material and spot weldability and having a superior strength/ductility balance suitable for use as a steel sheet for automotive bodies.
SOLUTION: The high strength steel sheet having high workability and improved corrosion resistance and spot weldability has a composition which consists of, by mass, 0.08 to 0.25% C, 0.6 to 2.5% Si, 1.2 to 2.5% Mn, ≤0.015% P, ≤0.005% S, 0.015 to 0.150% Cu, 0.001 to 2.5% sol.Al, ≤0.008% N, 0 (not added, the same applies to the following) to 0.06% Ti, 0 to 0.06% Nb, 0 to 2.0% Ni, 0 to 2.0% Mo, 0 to 2.0% Cr, 0 to 1.0% Co and the balance Fe with inevitable impurities, wherein the contents of Cu and S are regulated in such a way that Cu/S≥5 is satisfied. In particular, the steel sheet is provided in which Si+sol.Al≥0.7 is satisfied and ≥5 vol.% of retained γ-phase is contained in a metallic structure and a product of tensile strength TS (N/mm
2 ) and elongation EL (%) is made to ≥20,000.
COPYRIGHT: (C)2004,JPO&NCIPI

3. 发明专利

JPH11279739A Surface treated steel sheet provided with oil and fat degradability and its production 失效
标题翻译：表面处理钢板，具有油脂脆性及其生产能力
公开(公告)号：JPH11279739A
公开(公告)日：1999-10-12
申请号：JP10195398
申请日：1998-03-30
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： TANAKA HIROSHI , SODA MASAHIKO , FUKUI YASUSHI , SAITO MINORU
IPC分类号： C23C2/26 , C23C2/12
摘要： PROBLEM TO BE SOLVED: To produce a surface treated steel sheet good in workability and carried with catalytic powder having fat degradability in a state in which it is exposed to the surface and to provide a method for producing it.
SOLUTION: This surface treated steel sheet is the one in which an Al series plating layer is formed on the surface of a steel sheet, and on the surface of the Al series plating layer, as catalysts having fat degrading performance, one or ≥ two kinds of the powder of the oxide of Mo, Zn, Co, Mn, Cu, Ni, W, Cr, Bi, V and Sn are adhered in a state of being exposed. In the production of a hot dip Al series plated steel sheet in which a steel sheet is plated with a hot dip Al series plating bath, and after that, the coating weight of the plating is regulated, after the regulation of the coating weight of the plating, in a state in which the plating layer is not yet solidified, one or ≥ two kinds of the powder of the oxide of Mo, Zn, Co, Mn, Cu, Ni, W, Cr, Bi, V and Sn as catalysts having oil and fat degradability are sprayed onto the steel sheet together with a carrier gas, and the catalystic powder is adhered to the surface of the plating layer.
COPYRIGHT: (C)1999,JPO
摘要翻译：要解决的问题：制造具有良好加工性的表面处理钢板，并且在其暴露于表面的状态下携带具有脂肪降解性的催化粉末并提供其制造方法。解决方案：该表面处理钢板是在钢板表面上形成Al系列镀层的表面处理钢板，并且在Al系列镀层的表面上，作为具有脂肪降解性能的催化剂，一个或> =二 Mo，Zn，Co，Mn，Cu，Ni，W，Cr，Bi，V和Sn的氧化物的粉末的种类在被暴露的状态下粘附。在制造钢板镀上热浸Al系列电镀浴的热浸Al系列电镀钢板的制造之后，调整镀层的镀层重量，调整涂层重量后，在镀层尚未固化的状态下，将Mo，Zn，Co，Mn，Cu，Ni，W，Cr，Bi，V，Sn的氧化物中的1种或2种以上的粉末作为具有油脂降解性的催化剂与载气一起喷射到钢板上，催化剂粉末粘附到镀层的表面。

4. 发明专利

JP2007327104A Manufacturing method of coated steel sheet with excellent surface appearance 有权
标题翻译：具有优异表面外观的涂层钢板的制造方法
公开(公告)号：JP2007327104A
公开(公告)日：2007-12-20
申请号：JP2006159326
申请日：2006-06-08
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： YOSHIOKA KAZUYA , OWA KATSUMI , TANAKA HIROSHI , MATSUMOTO TAKASHI
IPC分类号： C21D9/46 , B21B1/22 , B21B1/26 , B21B3/00 , C22C38/00 , C22C38/06 , C23C2/06
摘要： PROBLEM TO BE SOLVED: To provide a coated steel sheet which is free from generation of a stretcher strain or the like and degradation of the surface appearance at a low cost even when the heat treatment of resin coating or the like is further applied to the coated steel sheet subjected to the hot-dipping and the subsequent regular coating and baking, and even when the steel sheet is subjected to very slight bending while suppressing the yield elongation to ≤0.2%.
SOLUTION: A slab having a composition containing of, by mass, 0.01-0.10% C, ≤0.3% Si, ≤1.0% Mn, ≤0.05% P, ≤0.02% S, ≤0.04% Al, ≤0.004% N, and 0.0002-0.0020% B, and the balance Fe with inevitable impurities is hot-rolled at the hot-roll coiling temperature of 550-750°C. Then, the slab is subjected to the pickling and the cold rolling, and further subjected to the hot dipping at the annealing temperature of 650-850°C. The slab is further subjected to the skin pass rolling and the light reduction at the total elongation percentage of 1.5-4% by a tension leveler, and again subjected to the tension leveler working at the elongation percentage of ≤0.3% after the coating and baking.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：即使进一步施加树脂涂层等的热处理，也可以提供不产生担架应变等的涂布钢板，低成本地降低表面外观并且即使当钢板经受非常轻微的弯曲同时将屈服伸长率抑制在≤0.2％时，也能够进行热浸镀层和随后的定期涂布和烘烤。解决方案：具有质量含量为0.01-0.10％C，≤0.3％Si，≤1.0％Mn，≤0.05％P，≤0.02％S，≤0.04％Al，≤0.004％的组合物的板坯 N和0.0002-0.0020％B，余量为不可避免的杂质的Fe在550-750℃的热辊卷取温度下热轧。然后，将板坯进行酸洗和冷轧，并进一步在650-850℃的退火温度下进行热浸。进一步通过张力矫直机将板坯进行表皮通过轧制和总伸长率为1.5-4％的光还原，并且在涂布和烘烤之后再次进行张力矫直机以≤0.3％的伸长率加工。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2004285385A Method for manufacturing galvannealed steel plate of high strength and excellent workability 有权
公开(公告)号：JP2004285385A
公开(公告)日：2004-10-14
申请号：JP2003077396
申请日：2003-03-20
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： TANAKA HIROSHI , OMOSAKO KOJI , YAMAMOTO TOMOO , FUJIWARA SUSUMU , HOSOMI KAZUAKI , ANDO ATSUSHI
IPC分类号： C23C2/06 , C21D9/46 , C22C38/00 , C22C38/04 , C22C38/58 , C23C2/02 , C23C2/28 , C23C2/40 , C23C28/02
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To provide a galvannealed steel plate of high strength and excellent workability by dropping the alloying heat treatment temperature after galvanizing to prevent degradation of mechanical characteristics of an original plate. SOLUTION: An Fe plating layer of the coating weight of 3-15 g/m 2 is formed on a steel plate containing, by mass, 0.04-0.25% C, 0.2-2.0% Si, and 0.5-3.0% Mn, and subjected to gas reduction annealing, and galvanized by immersing the steel plate in a galvanizing bath of ≥ 420°C and COPYRIGHT: (C)2005,JPO&NCIPI

6. 发明专利

JP2004276090A Method for manufacturing cold-rolled steel sheet reduced in variation of thickness 审中-公开
公开(公告)号：JP2004276090A
公开(公告)日：2004-10-07
申请号：JP2003073343
申请日：2003-03-18
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： TANAKA HIROSHI , OMOSAKO KOJI , YAMAMOTO TOMOO
IPC分类号： B21B45/02 , C21D9/46 , C22C38/00 , C22C38/04
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method for stably obtaining a cold-rolled steel sheet reduced in the variation of thickness even in a high tensile strength steel.
SOLUTION: In this manufacturing method, when dividing the cooling zone from the final pass stand of hot rolling to a winding device into at least four or more cooling zones in the direction of the line and dividing a passing steel band into at least five or more temperature measuring zones in the width direction, a hot rolled steel strip is manufactured by cooling a steel strip so that the temperature distribution of each temperature measuring zone in the width direction is within 50°C in the inlet position of each cooling zone and the outlet position of the final cooling zone and the range of variation in an average cooling rate in the middle part in the width direction of the steel sheet in passing through each cooling zone is within 5°C/s in any cooling zone. Cold rolling is performed by using this hot rolled strip. The method is suitable to the manufacture of the high tensile strength steel.
COPYRIGHT: (C)2005,JPO&NCIPI

7. 发明专利

JP2007039756A Method for manufacturing high strength galvannealed steel sheet having excellent workability 有权
标题翻译：制造具有优异工作性能的高强度钢筋钢板的方法
公开(公告)号：JP2007039756A
公开(公告)日：2007-02-15
申请号：JP2005226362
申请日：2005-08-04
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： TANAKA HIROSHI , YAMAMOTO TOMOO , MATSUMOTO TAKASHI , HOSOMI KAZUAKI
IPC分类号： C23C2/28 , C21D6/00 , C21D9/46 , C22C38/00 , C22C38/04 , C22C38/58 , C23C2/02 , C23C2/06
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To obtain a galvanized steel sheet having high strength and excellent workability by adjusting a pre-Fe plating layer formed on the surface of a plating original plate in a relation with a Zn plating coating weight and alloying the Fe plating layer at a low temperature between the Fe layer not containing Si and Mn and the Zn layer in manufacturing the galvanized steel sheet using a steel sheet containing a large amount of the Si and the Mn as the original plate. SOLUTION: After the steel sheet containing 0.05 to 0.25mass% C, 0.6 to 2.0mass% Si, and 0.8 to 3.0mass% is subjected to Fe plating, the steel sheet is annealed at 700 to 900°C and thereafter the steel sheet is cooled down to 350 to 500°C at an average cooling rate of 2 to 200°C/sec and is then subjected to holding for 0 to 20 minutes or to hot dip galvanizing at the coating weight satisfying the formula (1), 0.08[Fe coating weight]/([Fe coating weight]+[Fe coating weight])≤0.15 without the holding and is immediately cooled down to ≤250°C at a cooling rate of ≥5°C/sec after holding for 2 seconds to 2 minutes in a temperature region of 460 to 530°C, thereby forming the plating layer of a δ1 single phase. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题为了获得具有高强度和优异加工性的镀锌钢板，通过调整镀锌原板的表面上形成的预镀Fe镀层与镀锌镀层重量的关系并使Fe 使用含有大量Si和Mn作为原板的钢板，在不含Si和Mn的Fe层和Zn层之间的低温下的镀层进行制造。解决方案：在含有0.05-0.25质量％C，0.6-2.0质量％Si和0.8-3.0质量％的钢板进行Fe镀覆之后，钢板在700-900℃下退火，然后将钢板以2〜200℃/秒的平均冷却速度冷却至350〜500℃，然后保持0〜20分钟或以满足式（1）的涂布量进行热浸镀锌，，0.08 [Fe涂层重量] /（[Fe涂层重量] + [Fe涂层重量]）≤0.15，不保持，立即冷却至≤250℃，冷却速度≥5℃/秒，在460〜530℃的温度范围内2秒〜2分钟，形成δ1单相镀层。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JPH11276891A Titanium oxide photocatalyst carrying material and its preparation 失效
标题翻译：氧化钛光催化剂运载材料及其制备
公开(公告)号：JPH11276891A
公开(公告)日：1999-10-12
申请号：JP10195298
申请日：1998-03-30
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： TANAKA HIROSHI , SODA MASAHIKO , FUKUI YASUSHI , SAITO MINORU
IPC分类号： B01J21/06 , B01J35/02 , B01J37/02 , C23C28/00
CPC分类号： C23C28/322 , C23C2/12 , C23C2/26 , C23C4/02 , C23C28/3455
摘要： PROBLEM TO BE SOLVED: To obtain a material carrying a TiO
2 photocatalyst under a condition where it is exposed on the surface and to provide a method for preparing it.
SOLUTION: A TiO
2 photocatalyst carrying material has an Al plating layer formed on the surface of a steel sheet and TiO
2 being a photocatalyst is stuck under exposed condition on the surface of the Al plating layer. This material is prepd. by a method wherein, in a method for preparing Al plating steel sheet wherein a steel sheet is plated in a molten Al plating bath, and then amt. of adhesion of plating is adjusted, after the amt. of adhesion of plating is adjusted, TiO
2 powder is sprayed on the steel sheet while the plated layer is under unsolidified condition to stick the TiO
2 powder on the surface of the plated layer.
COPYRIGHT: (C)1999,JPO
摘要翻译：要解决的问题：在表面暴露的条件下获得携带TiO 2光催化剂的材料，并提供其制备方法。解决方案：一种TiO 2光催化剂携带材料在钢板表面上形成有Al镀层，而在Al镀层的表面上，在曝光条件下将作为光催化剂的TiO 2粘合。这个材料是prepd 通过一种方法，其中在制备镀铝钢板的方法中，其中将钢板镀在熔融的Al镀浴中，然后放置。电镀后的附着力进行调整。调整镀层的附着力，将TiO 2粉末喷涂在钢板上，同时镀层处于未固化状态，将TiO 2粉末粘附在镀层的表面上。

9. 发明专利

JP2007131910A High strength galvannealed steel sheet with excellent ductility, and its manufacturing method 有权
标题翻译：具有优异坚固性的高强度钢化钢板及其制造方法
公开(公告)号：JP2007131910A
公开(公告)日：2007-05-31
申请号：JP2005325724
申请日：2005-11-10
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： HIRONAKA SATOSHI , TANAKA HIROSHI , MATSUMOTO TAKASHI , HOSOMI KAZUAKI
IPC分类号： C22C38/00 , C21D9/46 , C22C38/06 , C22C38/58 , C23C2/06 , C23C2/28
摘要： PROBLEM TO BE SOLVED: To obtain a galvannealed steel sheet with high strength and excellent ductility by regulating the structure of a steel sheet containing large amounts of Si and Mn and alloying a plating layer of Fe and Zn free from Si and Mn.
SOLUTION: A steel sheet having a composition which contains, by mass, 0.05 to 0.25% C, 0.6 to 2.0% Si, 1.0 to 2.5% Mn and 0.1 to 0.5% Al and in which the total content of Si and Al is regulated to 0.8 to 2.2 mass% is subjected to iron-based plating, annealed at 700 to 900°C, cooled to 350 to 500°C at (2 to 200)°C/sec average cooling rate and held in this temperature region for 10 to 200 sec. Then the steel sheet is hot-dip galvanized at a coating weight satisfying inequality 0.08≤[Fe coating weight]/([Fe coating weight]+[Zn coating weight])≤0.15, held, without delay, at 460 to 530°C for 2 to 120 sec and cooled to ≤250°C at ≥5°C/sec cooling rate. A galvannealed coating layer of δ
1 -single phase can hereby be formed.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过调节含有大量Si和Mn的钢板的结构并合金化不含Si和Mn的Fe和Zn的镀层，获得具有高强度和优异延展性的合金化热镀锌钢板。＆lt;解决方案＆gt;一种钢板，其组成为：以质量计含有0.05〜0.25％的C，0.6〜2.0％的Si，1.0〜2.5％的Mn和0.1〜0.5％的Al，其中Si和Al的总含量调整为0.8〜2.2质量％的钢板进行铁基电镀，在700〜900℃下退火，以（2〜200℃）/秒的平均冷却速度冷却至350〜500℃，保持在该温度区域 10至200秒然后将钢板以满足不等式0.08≤[Fe涂层重量] /（[Fe涂层重量] + [Zn涂层重量]）≤0.15的涂层重量进行热浸镀锌，保持不间断地在460-530℃ 2〜120秒，冷却至≤250℃，冷却速度≥5℃/秒。因此可以形成δ 1 单相的合金化热浸镀层。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2006265671A High tensile galvannealed steel sheet having excellent workability and molten metal embrittlement crack reistance 审中-公开
标题翻译：具有优异的可操作性和金属刺激性的高强度钢化钢板抗裂性
公开(公告)号：JP2006265671A
公开(公告)日：2006-10-05
申请号：JP2005087738
申请日：2005-03-25
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： HOSOMI KAZUAKI , ANDO ATSUSHI , FUJIMOTO NOBUKAZU , TANAKA HIROSHI
IPC分类号： C22C38/00 , C21D9/46 , C22C38/14 , C23C2/06
摘要： PROBLEM TO BE SOLVED: To provide a high tensile galvannealed steel sheet which exhibits a high tensile force of ≥580 Mpa, is improved in molten metal embrittlement resistance during spot welding, and is excellent in weldability and workability. SOLUTION: The composition of the base steel (each by mass%) of the steel sheet comprises 0.04 to 0.25% C, 0.01 to 2.0% Si, 0.5 to 3.0% Mn, ≤0.1% P, ≤0.03% S, further one or two or more kinds of 0.001 to 0.1% Ti, 0.001 to 0.1% Nb, 0.01 to 0.3% V, 0.01 to 0.5% Mo, 0.01 to 0.5% Zr, comprises, as necessary, 0.0001 to 0.01% B, wherein the metal structure comprises one or two or more kinds of a ferrite phase, bainite phase, pearlite phase and martensite phase of 40 to 95% in area rate, and the balance 1 to 10% volume fraction residual austenite phase. The metal structure is preferably dispersed with the deposited material or compound deposited material of Ti, Nb, V, Mo, and Zr of 3 to 200 nm in average grain size. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种显示≥580Mpa的高张力的高拉力合金化热浸镀锌钢板，点焊时的熔融金属脆性提高，焊接性和加工性优异。钢板的组成按质量％计含有0.04〜0.25％C，0.01〜2.0％Si，0.5〜3.0％Mn，≤0.1％P，≤0.03％S，进一步含有0.001〜0.1％的Ti，0.001〜0.1％的Nb，0.01〜0.3％的V，0.01〜0.5％的Mo，0.01〜0.5％的Zr，必要时含有0.0001〜0.01％的B，其中该金属结构体的面积率为40〜95％的铁素体相，贝氏体相，珠光体相和马氏体相中的一种或两种以上，余量为残留奥氏体相的1〜10％。金属结构优选以平均晶粒尺寸为3〜200nm的Ti，Nb，V，Mo，Zr的沉积材料或化合物沉积材料分散。版权所有（C）2007，JPO＆INPIT

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