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31. 发明申请

US20030205302A1 Method for manufacturing a steel sheet 有权
标题翻译：钢板的制造方法
公开(公告)号：US20030205302A1
公开(公告)日：2003-11-06
申请号：US10445631
申请日：2003-05-27
申请人： NKK CORPORATION
发明人： Tadashi Inoue , Yoichi Motoyashiki , Hiroyasu Kikuchi , Yoshimasa Funakawa , Hiroshi Nakata , Sadanori Imada , Toru Inazumi
IPC分类号： C21D008/02
CPC分类号： C21D8/0226 , C21D8/021
摘要： A method for manufacturing a steel sheet comprising continuously casting a steel containing 0.04 to 0.2 wt. % C, 0.25 to 2 wt. % Si, 0.5 to 2.5 wt. % Mn, and 0.1 wt. % or less Al to form a slab; hot-rolling by rough-rolling the slab to form a sheet bar and finish-rolling the sheet bar with a reduction in thickness at the final stand of less than 30%, the finish-rolling being completed at a temperature from the Ar3 transformation point to the Ar3 transformation point null60null C.; primary-cooling the hot-rolled steel sheet, the primary cooling being started within 1 second after the completion of hot-rolling and conducting the cooling at a cooling speed of higher than 200null C./sec down to a temperature of Ar3 null30null C. to the Ar1 transformation point; slow cooling or air-cooling the primary-cooled steel sheet at a temperature of the Ar3 transformation point to the Ar1 transformation point at 10null C./sec or less for 2 seconds or more; secondary-cooling the steel sheet after the slow cooling or the air-cooling at 30null C./sec or more; and coiling the secondary-cooled steel sheet at 300null C. or less.
摘要翻译：一种钢板的制造方法，其特征在于，连续铸造含有0.04〜0.2重量％％C，0.25〜2重量％％Si，0.5〜2.5wt。％Mn和0.1wt。％以下的Al以形成板坯; 通过对板坯进行粗轧以形成板坯进行热轧，并且在最终机架上以厚度减小的方式对板坯进行精轧，其退火温度在Ar3相变点到Ar3转化点+ 60°C。对热轧钢板进行一次冷却，一次冷却在热轧结束后的1秒内开始，以高于200℃/秒的冷却速度进行冷却至Ar3〜 °C至Ar1转化点; 在Ar 3相变点的温度下在10℃/秒以下缓慢冷却或空气冷却2秒以上的主冷却钢板; 在缓慢冷却或空气冷却30℃/秒以上之后对钢板进行二次冷却; 并且在300℃以下卷取二次冷却钢板。

32. 发明申请

US20030066581A1 Method of making a hardened sheet metal article 审中-公开
标题翻译：硬化钣金制品的制造方法
公开(公告)号：US20030066581A1
公开(公告)日：2003-04-10
申请号：US10262586
申请日：2002-09-30
申请人： BENTELER AUTOMOBILTECHNIK GMBH & CO. KG
发明人： Ludger Gehringhoff , Udo Klasfauseweh , Carsten Jakel
IPC分类号： C21D008/02
CPC分类号： C21D9/0068 , B21D19/088 , B21D22/022 , C21D1/673 , C21D9/46
摘要： In a method of making a hardened sheet metal article, a blank is formed with at least one through-passage with a projecting collar. Thereafter, the blank is heated and hot-formed in a press mold to a sheet metal article. Still within the press mold, the sheet metal article is hardened. The shaping of the blank in the press mold is accompanied by a calibration of the through-passage to final shape.
摘要翻译：在制造硬化的金属板制品的方法中，坯件形成有至少一个具有凸出的环的通道。此后，坯料在压模中被加热和热成型为金属板制品。仍然在压模内，金属片制品被硬化。冲压模具中坯件的成型伴随着直通通道的校准到最终形状。

33. 发明申请

US20020088511A1 High carbon steel sheet and production method thereof 有权
标题翻译：高碳钢板及其制造方法
公开(公告)号：US20020088511A1
公开(公告)日：2002-07-11
申请号：US09961843
申请日：2001-09-24
发明人： Nobuyuki Nakamura , Takeshi Fujita , Katsutoshi Ito , Yasuyuki Takada
IPC分类号： C21D008/02
CPC分类号： C22C38/06 , C21D8/02 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D8/0273 , C21D2211/003 , C22C38/002 , C22C38/04
摘要： The present invention relates to a high carbon steel sheet having chemical composition specified by JIS G 4051 (Carbon steels for machine structural use), JIS G 4401 (Carbon tool steels) or JIS G 4802 (Cold-rolled steel strips for springs), wherein the ratio of number of carbides having a diameter of 0.6 nullm less with respect to all the carbides is 80% or more, more than 50 carbides having a diameter of 1.5 nullm or larger exist in 2500 nullm2 of observation field area of electron microscope, and the nullr is more than null0.15 to less than 0.15. The high carbon steel sheet of the invention is excellent in hardenability and toughness, and formable with a high dimensional precision.
摘要翻译：本发明涉及JIS G 4051（机械结构用碳素钢），JIS G 4401（碳素工具钢）或JIS G 4802（弹簧用冷轧钢带）所规定的化学成分的高碳钢板，其中，相对于所有的碳化物，直径为0.6μm的碳化物的数量的比率为80％以上，在电子显微镜的观察场面积的2500mum2中存在大于50个直径为1.5μm以上的碳化物， DELTAr大于-0.15至小于0.15。本发明的高碳钢板的淬透性和韧性优异，且尺寸精度高。

34. 发明申请

US20020007882A1 Steel sheet and method for manufacturing the same 有权
标题翻译：钢板及其制造方法
公开(公告)号：US20020007882A1
公开(公告)日：2002-01-24
申请号：US09838017
申请日：2001-04-19
申请人： NKK CORPORATION
发明人： Tadashi Inoue , Yoichi Motoyashiki , Hiroyasu Kikuchi , Yoshimasa Funakawa , Hiroshi Nakata , Sadanori Imada , Toru Inazumi
IPC分类号： C21D008/02
CPC分类号： C21D8/0226 , C21D8/021
摘要： The method for manufacturing steel sheet comprises the steps of: forming a sheet bar; forming a steel strip; primary-cooling; air-cooling; secondary-cooling; and coiling. The sheet bar is finish-rolled at finish temperatures of (Ar3 transformation pointnull20null C.) or more. The primary cooling cools the finish-rolled steel strip at cooling speeds of more than 120null C./sec down to the temperatures ranging from 500 to 800null C.
摘要翻译：制造钢板的方法包括以下步骤：形成板坯; 形成钢带; 一次冷却; 空冷; 二次冷却和卷取。在（Ar3相变点-20℃）或更高的最终温度下对薄板坯进行精轧。主冷却冷却速度高于120℃/秒的冷轧钢带至500至800℃的温度。

35. 发明申请

US20020005234A1 Ultra-low carbon steel composition, the process or production of an ULC BH steel product and the product obtained 有权
标题翻译：超低碳钢组合物，工艺或生产的ULC BH钢产品及获得的产品
公开(公告)号：US20020005234A1
公开(公告)日：2002-01-17
申请号：US09747193
申请日：2000-12-22
发明人： Sven Vandeputte , Serge Claessens
IPC分类号： C22C038/12 , C21D008/02
CPC分类号： C21D8/0426 , C21D8/0436 , C21D8/0473 , C21D8/0478 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/14 , C23C2/02
摘要： The present invention describes an ultra-low carbon bake hardenable galvanized or galvannealed steel product, having a higher yield strength at the temperature of the molten zinc bath while maintaining a low yield strength and excellent bake hardening properties in a skinpassed condition, BH0 being higher than 35 MPa and BH2 higher than 40 MPa (GI) and BH0>20 MPa and BH2>30 MPa (GA), as well as having a superior paint appearance after stamping and painting. The content in the steel composition of the Ti is comprised between 3,42 N and 3,42 Nnull60 ppm for a fixed nitrogen content (N), and the Nb-content, comprised between 50 ppm and 100 ppm, is fixed so that no substantial precipitation of niobium carbides will occur during the process.
摘要翻译：本发明描述了一种超低碳烘烤硬化性镀锌或合金化热镀锌钢产品，在熔融锌浴温度下具有较高的屈服强度，同时保持低屈服强度和优良的烘烤硬化性能，BH0高于 35MPa，BH2高于40MPa（GI），BH0> 20MPa和BH2> 30MPa（GA），并且在冲压和喷漆后具有优异的外观。对于固定氮含量（N），Ti的钢组成中的含量在3,42N和3,42N + 60ppm之间，并且包含在50ppm和100ppm之间的Nb含量被固定为在该过程中不会发生碳化铌的显着沉淀。

36. 发明申请

US20010013382A1 NON-RIDGING FERRITIC CHROMIUM ALLOYED STEEL 有权
标题翻译：非金属铬铬合金钢
公开(公告)号：US20010013382A1
公开(公告)日：2001-08-16
申请号：US09153822
申请日：1998-09-15
发明人： EIZO YOSHITAKE , ALAN R. MCKAGUE
IPC分类号： C22C038/28 , C21D008/02
CPC分类号： C21D8/0215 , C22C38/18 , C22C38/50
摘要： A ferritic non-ridging stainless steel and process therefor. A chromium alloyed steel melt containing sufficient titanium and nitrogen but a controlled amount of aluminum is cast into an ingot or continuously cast into a strip or a slab having an as-cast fine equiaxed grain structure substantially free of columnar grains. The as-cast steel contains 0.08% C, at least about 8% Cr, up to 1.50% Mn, 1.5. A hot processed sheet may be formed from a continuously cast slab without grinding the surfaces of the slab. The hot processed sheet may be descaled, cold reduced to a final thickness and recrystallization annealed. Annealing the hot processed sheet prior to cold reduction is not required to obtain an annealed sheet essentially free of ridging and having high formability.
摘要翻译：铁素体非罗纹不锈钢及其工艺。将含有足够的钛和氮但控制量的铝的铬合金钢熔体铸成锭或连续铸造成具有基本上不含柱状晶粒的铸态精细等轴晶粒结构的条或板坯。铸钢含有0.08％C，至少约8％的Cr，至多1.50％的Mn，<0.020％的Al，<= 0.05％的N，<= 1.5％的Si，<2.0％的Ni，Ti> = 0.10％，（TixN）/ Al> = 0.14的比例，所有重量百分比，余量为Fe和残余元素。优选控制钛（Ti / 48）/ [（C / 12）+（N / 14）]> 1.5。热处理片材可以由连续铸造的板坯形成而不研磨板坯的表面。热处理片材可以除鳞，冷却至最终厚度并重结晶退火。在冷还原之前退火热处理片材不需要获得基本上没有皱纹并具有高成形性的退火片材。

37. 发明申请

US20010000580A1 Steel sheet for use as an electrode-supporting frame member of a color picture tube and manufacturing method thereof 失效
标题翻译：用作彩色显象管的电极支撑框架构件的钢板及其制造方法
公开(公告)号：US20010000580A1
公开(公告)日：2001-05-03
申请号：US09731562
申请日：2000-12-07
申请人： Nisshin Steel Co., and Sony Corporation
发明人： Yukio Katagiri , Akito Kawamoto , Seiichi Hamanaka , Nobuo Ozawa , Takahide Sanma
IPC分类号： C21D008/02
CPC分类号： C22C38/46 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0278 , C22C38/004 , C22C38/06 , C22C38/24 , C22C38/26 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50 , H01J29/073 , H01J2229/0722
摘要： A steel sheet has composition consisting of 0.003-0.10 wt. % C, not more than 1.0 wt. % Si, 0.05-1.5 wt. % Mn, not more than 0.10 wt. % P, not more than 0.02 wt. % S, 1.5-8.0 wt. % Cr, 0.003-0.10 wt. % Al, at least one of 0.08-0.40 wt. % Ti, 0.08-0.40 wt. % Nb and 0.08-0.40 wt. % V, optionally at least one of Cu up to 2.0 wt. %, Ni up to 2.0 wt. %, 0.01-2.0 wt. % Mo, 0.01-2.0 wt. % W and 0.0003-0.0050 wt. % B and the balance being essentially Fe except inevitable impurities. The steel sheet is good of both a room-temperature strength and a high temperature strength. The new steel sheet is useful as a frame member of a color picture tube for stretching color selecting electrode elements, instead of an expensive ferritic stainless steel.
摘要翻译：钢板具有0.003-0.10重量％％C，不大于1.0wt。％Si，0.05-1.5重量％％Mn，不大于0.10wt。％P，不大于0.02重量％％S，1.5-8.0wt。％Cr，0.003-0.10wt。％Al，0.08-0.40重量％％Ti，0.08-0.40wt。％Nb和0.08-0.40wt。％V，任选地至少一个Cu至2.0wt。％，Ni至2.0wt。％，0.01-2.0重量％％Mo，0.01-2.0重量％％W和0.0003-0.0050wt。％B，余量基本上为Fe，除了不可避免的杂质。该钢板既具有室温强度又具有高温强度。新的钢板作为用于拉伸选色电极元件的彩色显像管的框架构件是有用的，而不是昂贵的铁素体不锈钢。

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