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1. 发明申请

WO1994005823A1 COLD-ROLLED SHEET AND HOT-GALVANIZED, COLD-ROLLED SHEET, BOTH EXCELLENT IN BAKE HARDENING, COLD NONAGING AND FORMING PROPERTIES, AND PROCESS FOR PRODUCING THE SAME 审中-公开
标题翻译：冷轧板和热轧板，冷轧板，两个优良的烘烤硬化，冷轧和成形性能，以及生产它们的方法
公开(公告)号：WO1994005823A1
公开(公告)日：1994-03-17
申请号：PCT/JP1993001231
申请日：1993-08-31
申请人： NIPPON STEEL CORPORATION , YOSHINAGA, Naoki; , USHIODA, Kohsaku; , AKISUE, Osamu; , MATSUMURA, Yoshikazu; , NISHIMURA, Kunio
发明人： NIPPON STEEL CORPORATION
IPC分类号： C22C38/06
CPC分类号： C21D8/0426 , C21D8/0436 , C21D8/0473
摘要： A cold-rolled sheet or a hot-galvanized, cold-rolled sheet having high paint bake hardening and cold nonaging properties and being excellent in the forming properties such as an average r value (deep drawing characteristics) and elongation (bulging characteristics) is produced by annealing an ultralow-carbon steel itself or one containing at least either titanium or niobium above the Ac3 transformation point to thereby give thereto a single-phase structure of low-temperature transformation product. As regards the paint bake hardening properties, it is possible to realize a BH value as high as about 10 kgf/mm2.
摘要翻译：产生具有高油漆烘烤硬化和冷却性能并且具有优异的成型性能如平均r值（深拉深特性）和伸长率（凸起特性））的冷轧板或热镀锌冷轧板通过使超低碳钢本身退火，或者在Ac 3相变点以上至少含有钛或铌的退火，由此得到低温转化体的单相组织。关于油漆烘烤硬化性，可以实现高达约10kgf / mm2的BH值。

2. 发明申请

WO1992016668A1 HIGH-STRENGTH, COLD-ROLLED STEEL SHEET EXCELLENT IN FORMABILITY, HOT-DIP ZINC COATED HIGH-STRENGTH COLD ROLLED STEEL SHEET, AND METHOD OF MANUFACTURING SAID SHEETS 审中-公开
标题翻译：高强度，易轧钢板，高热镀锌高强度冷轧钢板及其制造方法
公开(公告)号：WO1992016668A1
公开(公告)日：1992-10-01
申请号：PCT/JP1992000304
申请日：1992-03-13
申请人： NIPPON STEEL CORPORATION , USHIODA, Kohsaku , YOSHINAGA, Naoki , AKISUE, Osamu
发明人： NIPPON STEEL CORPORATION
IPC分类号： C22C38/12
CPC分类号： C22C38/12 , C22C38/04 , Y10T428/12799
摘要： A method of manufacturing high-strength, cold-rolled steel sheet excellent in formability. When increasing the strength of extra low-carbon steel as a base material including Nb or a combination of Ti and Nb by adding solid-solution strengthening element thereto, quantities of P and Si to be added which have been used in quantities are decreased whereas Mn and Cr are liberally added. Thus, the yield strength is prevented from increasing and the strength can be increased, whereby a high strength cold rolled steel sheet excellent in surface formability and in resistance to denting can be manufactured.
摘要翻译：一种制造成型性优异的高强度冷轧钢板的方法。当通过添加固溶强化元素来增加作为包括Nb或Ti和Nb的组合的基础材料的额外的低碳钢的强度时，其量使用的添加的P和Si的量减少，而Mn 和Cr被自由地添加。因此，可以防止屈服强度的提高，强度提高，能够制造表面成形性优异且耐凹陷性优异的高强度冷轧钢板。

3. 发明申请

WO1996030555A1 ULTRALOW-CARBON COLD-ROLLED SHEET AND GALVANIZED SHEET BOTH EXCELLENT IN FATIGUE CHARACTERISTICS AND PROCESS FOR PRODUCING BOTH 审中-公开
标题翻译：超低碳冷轧板和优质板材，具有良好的疲劳特性和生产两种工艺
公开(公告)号：WO1996030555A1
公开(公告)日：1996-10-03
申请号：PCT/JP1996000805
申请日：1996-03-27
申请人： NIPPON STEEL CORPORATION , TEZUKA, Makoto , USHIODA, Kohsaku , FUJII, Shiro , ITAMI, Atsushi , SAKUMA, Yasuharu , YOKOI, Tatsuo
发明人： NIPPON STEEL CORPORATION
IPC分类号： C22C38/00
CPC分类号： C22C38/12 , C21D8/0426 , C21D8/0436 , C21D8/0473 , C21D8/0478 , C22C38/001 , C22C38/06 , C22C38/14 , C23C2/02 , C23C2/06 , C23C2/40
摘要： A deep-drawing cold-rolled or hot-galvanized sheet improved in the fatigue characteristics of the base metal and spot welding zone. The sheet contains on the weight basis 0.0001-0.0026 % C, at most 1.2 % Si, 0.03-3.0 % Mn, 0.015-0.15 % P, 0.0010-0.020 S, 0.005-0.1 % Al, 0.0005-0.0080 % N, 0.0003-0.0030 % B, and the balance consisting of Fe and inevitable impurities; and a process for producing the sheet by hot-rolling a slab comprising the above chemical ingredient at or above the Ar3 transformation point, preferably cooling the rolled slab to 750 DEG C at a cooling rate of 50 DEG C/sec or above within 1.5 sec, winding the cooled slab at a temperature ranging from ordinary temperature to 750 DEG C, cold-rolling the wound slab at a draft of 70 % or above, and conducting continuous annealing or continuous Sendzimir hot galvanization at 600-900 DEG C to control the temper-rolling reduction rate to be 1.5 x (1 - 400 x C) % or above and 2,080 x (C - 0.0015) % or above, wherein C is the carbon content (wt.%).
摘要翻译：深冲冷轧或热镀锌板改善了贱金属和点焊区的疲劳特性。该片材的重量基于0.0001-0.0026％C，至多1.2％Si，0.03-3.0％Mn，0.015-0.15％P，0.0010-0.020S，0.005-0.1％Al，0.0005-0.0080％N，0.0003- 0.0030％B，余量由Fe和不可避免的杂质组成; 以及通过热轧包含上述化学成分在Ar 3相变点以上的化学成分的板坯的方法，优选以1.5℃/秒以上的冷却速度在1.5秒内将轧制板坯冷却至750℃ 将冷却的板坯在常温至750℃的温度下卷绕，以70％以上的卷取速度冷轧卷绕的板坯，并在600-900℃下进行连续退火或连续的Sendzimir热镀锌，以控制回火压缩率为1.5×（1〜400×C）％以上，2,080×（C-0.0015）％以上，其中C为碳含量（重量％）。

4. 发明申请

WO1994006948A1 FERRITE SINGLE PHASE COLD ROLLED STEEL SHEET OR FUSED ZINC PLATED STEEL SHEET FOR COLD NON-AGEING DEEP DRAWING AND METHOD FOR MANUFACTURING THE SAME 审中-公开
标题翻译：铁素体单相冷轧钢板或熔融镀锌钢板，用于冷却非老化深冲及其制造方法
公开(公告)号：WO1994006948A1
公开(公告)日：1994-03-31
申请号：PCT/JP1993001314
申请日：1993-09-14
申请人： NIPPON STEEL CORPORATION , USHIODA, Kohsaku; , YOSHINAGA, Naoki; , MATSUMURA, Yoshikazu; , AKISUE, Osamu; , NISHIMURA, Kunio , MURAKAMI, Hidekuni
发明人： NIPPON STEEL CORPORATION
IPC分类号： C22C38/06
CPC分类号： C22C38/32 , C21D8/0426 , C21D8/0436 , C21D8/0473 , C21D2211/005 , C23C2/02
摘要： A method for manufacturing a ferrite single phase cold rolled steel sheet or fused zinc plated steel sheet for cold non-ageing deep drawing having superior anti secondary processing embrittlement properties and painting, stoving and setting properties comprising the steps of heating a slab containing 0.0001 to 0.0015 percent by weight of C, 1.2 percents or less by weight of Si, 0.03 to 3.0 percents by weight of Mn, 0.01 to 0.15 percent by weight of P, 0.0010 to 0.020 percent by weight of S, 0.005 to 0.1 percent by weight of Al, 0.0001 to 0.0080 percent by weight of N, 0.0001 to 0.0030 percent by weight of B, 0.1 to 3 percents by weight of Cr, as required, and the remaining part of Fe and inevitable impurities, hot rolling said heated slab at a finishing temperature of (Ar3-100) C or higher, cooling said slab down to a temperature range of 600 to 750 C at a cooling speed of 50 C/sec or higher within a second after said finishing temperature has been achieved, taking up said slab within said temperature range, cold rolling said slab with a rolling reduction of 60 % or more, and continuously annealing or fused zinc plating said slab at a temperature ranging from 600 to 900 C.
摘要翻译：一种制造用于冷非老化深拉深的铁素体单相冷轧钢板或熔融镀锌钢板的方法，其具有优异的抗二次加工脆性和喷涂，烘烤和固化性能，包括以下步骤：加热含有0.0001至0.0015 重量百分比的C，1.2％或更少的Si，0.03〜3.0％的Mn，0.01〜0.15％的P，0.0010〜0.020％的S，0.005〜0.1％的Al ，0.0001〜0.0080重量％的N，0.0001〜0.0030重量％的B，0.1〜3重量％的Cr，以及剩余的Fe和不可避免的杂质，将所述加热的板坯在终轧温度下进行热轧（Ar3-100）℃以上，在达到完成温度后，在一秒钟内以50℃/秒以上的冷却速度将所述板冷却至600〜750℃的温度范围，在所述温度范围内，冷轧所述板坯的轧制压下率为60％以上，并且在600〜900℃的温度范围内连续退火或熔融镀锌所述板坯。

5. 发明申请

WO1994000615A1 COLD-ROLLED STEEL PLATE HAVING EXCELLENT BAKING HARDENABILITY, NON-COLD-AGEING CHARACTERISTICS AND MOLDABILITY, AND MOLTEN ZINC-PLATED COLD-ROLLED STEEL PLATE AND METHOD OF MANUFACTURING THE SAME 审中-公开
标题翻译：具有优异的耐候性，非冷却特性和可变形性的冷轧钢板，以及镀锌冷轧钢板及其制造方法
公开(公告)号：WO1994000615A1
公开(公告)日：1994-01-06
申请号：PCT/JP1993000846
申请日：1993-06-22
申请人： NIPPON STEEL CORPORATION , YOSHINAGA, Naoki , USHIODA, Kohsaku , AKISUE, Osamu , NISHIMURA, Kunio
发明人： NIPPON STEEL CORPORATION
IPC分类号： C22C38/06
CPC分类号： C22C38/04 , C21D8/0236 , C21D8/0273 , C21D8/0278 , C21D8/04 , C22C38/06 , C23C2/02 , C23C2/06 , Y10T428/12799
摘要： A cold rolled steel plate having excellent baking hardenability, non-cold-ageing characteristics and moldability, and a molten zinc-plated cold-rolled steel plate and a method of manufacturing the same. The structure of an annealed product is turned into mixed structure by positively adding Mn and Cr to a base material of very low carbon steel or very low carbon steel containing not less than one of Ti and Nb. This enables a steel plate having both a high paint-baking hardenability and a high non-cold-ageing characteristics as well as a high processability represented by an average r-value (deep drawing characteristics) to be obtained. Especially, the paint-baking hardenability is such that a cold-rolled steel plate and a molten zinc-plated cold-rolled steel plate which provide a BH amount as high as around 10 kgf/mm2 as necessary, and which also have excellent non-cold-ageing characteristics, can be provided.
摘要翻译：具有优异的烘烤淬透性，非冷老化特性和成型性的冷轧钢板和熔融镀锌冷轧钢板及其制造方法。退火产物的结构通过向含有不少于Ti和Nb的非常低碳钢或非常低碳钢的基材中积极添加Mn和Cr而变成混合结构。由此，能够得到具有高油漆烘烤硬化性和高非冷老化特性以及由平均r值（深冲特性）表示的高加工性的钢板。特别地，油漆烘烤淬透性是根据需要提供BH量高达约10kgf / mm 2的冷轧钢板和熔融镀锌冷轧钢板，可以提供冷老化特性。

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