公开(公告)号：US20040020570A1

公开(公告)日：2004-02-05

申请号：US10630479

申请日：2003-07-29

申请人： NKK CORPORATION

发明人： Takeshi Fujita ,  Fusato Kitano ,  Yoshihiro Hosoya ,  Toru Inazumi ,  Yuji Yamasaki ,  Masaya Morita ,  Yasunobu Nagataki ,  Kohei Hasegawa ,  Hiroshi Matsuda ,  Moriaki Ono

IPC分类号： C21D001/00

CPC分类号： C22C38/12 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0273 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

摘要： A high strength cold rolled steel sheet consists essentially of 0.0040 to 0.01% C, 0.05% or less Si, 0.1 to 1.0% Mn, 0.01 to 0.05% P, 0.02% or less S, 0.01 to 0.1% sol.Al, 0.004% or less N, 0.01 to 0.14% Nb, optionally 0.05% or less Ti, optionally 0.05% or less B, by weight, and a balance of substantially Fe and inevitable impurities, and satisfying the following formulae (6) and (7): (12/93)nullNb*/Cnull1.2nullnull(6), TSnull4050nullCeqnullnull0.75nullTSnull380nullnull(7), wherein Nb*nullNbnull(93/14)nullN, CeqnullCnull(1/50)nullSinull(1/25)nullMnnull(1/2)nullP, wherein TS is the tensile strength in MPa, and C, Si, Mn, P, N and Nb denote the content in % by weight of carbon, silicon, manganese, phosphorus, nitrogen, and niobium, respectively. The high strength cold rolled steel sheet has excellent combined formability, resistance to embrittlement during secondary operation, formability at welded portions, and anti-burring performance, and has a desirable surface appearance and uniformity of material in a coil, and thus can be desirably used for automobile exterior panels.

摘要翻译： 高强度冷轧钢板主要由0.0040〜0.01％的C，0.05％以下的Si，0.1〜1.0％的Mn，0.01〜0.05％的P，0.02％以下的S，0.01〜0.1％的溶胶，0.004％ 或更少的N，0.01至0.14％的Nb，任选的0.05％或更少的Ti，任选的0.05％或更少的B，以及余量基本上为Fe和不可避免的杂质，并满足下列通式（6）和（7）： （12/93）xNb * / C> = 1.2（6），TS-4050xCeq> = - 0.75×TS + 380（7）其中Nb * = Nb-（93/14）xN，Ceq = C +（1/50 ）xSi +（1/25）xMn +（1/2）xP，其中TS是以MPa计的拉伸强度，C，Si，Mn，P，N和Nb表示碳，硅，锰的重量％ 磷，氮和铌。 高强度冷轧钢板具有优异的组合成形性，二次加工中的脆性耐受性，焊接部的成形性，抗卷曲性能，并且具有优选的线圈材料的表面外观和均匀性，因此可以理想地使用 用于汽车外部面板。

公开(公告)号：US20030116228A1

公开(公告)日：2003-06-26

申请号：US10026487

申请日：2001-12-20

申请人： Aveka, Inc.

发明人： Gary A. Pozarnsky

IPC分类号： B05D007/00 ,  C23C022/00 ,  B05C011/00 ,  C21D001/00 ,  C21D009/00 ,  C23C022/48

CPC分类号： B22F1/0062 ,  B22F1/0018 ,  B22F9/12 ,  B22F2998/00 ,  B82Y30/00

摘要： A process and apparatus prepares and collects metal nanoparticles by forming a vapor of a metal that is solid at room temperature, the vapor of the metal being provided in an inert gaseous carrying medium. At least some of the metal is solidified within the gaseous stream. The gaseous stream and metal material is moved in a gaseous carrying environment into or through a dry mechanical pumping system. While the particles are within the dry mechanical pumping system or after the nanoparticles have moved through the dry pumping system, the vaporized metal material and nanoparticles are contacted with an inert liquid collecting medium.

摘要翻译： 方法和装置通过在室温下形成固体的金属蒸汽来制备和收集金属纳米颗粒，金属的蒸气被提供在惰性气体携带介质中。 至少一些金属在气流内固化。 气态物流和金属材料在携带气体的环境中进入或通过干式机械泵送系统。 当颗粒在干式机械泵送系统内时，或在纳米颗粒已经移动通过干式泵送系统之后，汽化的金属材料和纳米颗粒与惰性液体收集介质接触。

公开(公告)号：US20030019548A1

公开(公告)日：2003-01-30

申请号：US10179988

申请日：2002-06-26

申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

发明人： Yoshiyuki Miyagawa ,  Katsuhiro Tanaka

IPC分类号： C21D001/00 ,  C21D006/00 ,  C21B003/00

CPC分类号： C21B13/0046 ,  C21B13/0086 ,  C22B1/26

摘要： A method for cooling hot reduced iron briquettes at low cost without degrading the strength is provided. The method includes a primary cooling step of cooling the hot reduced iron briquettes by steam at a cooling rate of 4.0null C./s or less, a secondary cooling step of cooling the reduced iron briquettes by steam and sprayed water at a cooling rate of 4.0null C./s or less, and a final cooling step of cooling the reduced iron briquettes by sprayed water at a cooling rate of 3.5null C./s or more to a temperature in a final product temperature range. The steam generated by evaporation of sprayed water during the final cooling step is used in the primary and/or secondary cooling step.

摘要翻译： 提供了一种以低成本冷却热还原铁团块而不降低强度的方法。 该方法包括以4.0℃/ s以下的冷却速度的蒸汽冷却热还原铁团块的主冷却步骤，以蒸汽和喷射水以冷却速度冷却还原铁团块的二次冷却步骤 4.0℃/ s以下，最后冷却工序，以3.5℃/ s以上的冷却速度将喷射水冷却至最终产品温度范围内的还原铁团块。 在最终冷却步骤中通过蒸发蒸发产生的蒸汽用于初级和/或二级冷却步骤。

公开(公告)号：US20020197132A1

公开(公告)日：2002-12-26

申请号：US09888071

申请日：2001-06-22

发明人： Arturo De La Cruz ,  James Fraysur

IPC分类号： C21D001/00 ,  F16B037/00

CPC分类号： E21B17/0426 ,  F16L57/06 ,  F16L58/182

摘要： A high strength sucker rod coupling for use with high strength sucker rods, and methods for fabricating the coupling. The coupling is fabricated from a hardened, hollow cylindrical coupling blank. An outer surface of the coupling blank is coated with spray metal alloy, and the coated blank is heated to fuse the spray metal to the outer surface thereby forming a wear layer. This coating decrease brittleness of the wear layer, and limits cracking and subsequent stress riser effects on fatigue performance. The coupling blank is austenitized and liquid quenched to a specified hardness range. Fully cold formed threads are formed on an inner surface of the coupling blank. The fully cold formed threads maintain fatigue properties which are superior to fatigue properties obtained with partially cut, partially rolled threads on prior art high strength couplings. Fabrication methods are designed to be adaptable to current coupling manufacturing facilities, thereby minimizes modification and nullstart-upnull costs required to manufacture the improved coupling.

摘要翻译： 用于高强度抽油杆的高强度抽油杆联轴器，以及制造联轴器的方法。 联轴器由硬化的中空圆柱形联轴器坯件制成。 连接坯料的外表面涂覆有喷涂金属合金，并且将涂覆的坯料加热以将喷涂金属熔合到外表面，从而形成耐磨层。 该涂层降低了耐磨层的脆性，并限制了裂纹和随后的应力提升对疲劳性能的影响。 联轴器坯料经奥氏体化处理，液态淬火至规定的硬度范围。 在连接坯件的内表面上形成完全冷成形的螺纹。 完全冷成型的螺纹保持疲劳性能，其优于使用现有技术的高强度接头部分切割的部分卷绕的螺纹获得的疲劳性能。 制造方法被设计为适应当前的耦合制造设备，从而最小化制造改进的耦合所需的修改和“起动”成本。

公开(公告)号：US20010023722A1

公开(公告)日：2001-09-27

申请号：US09782034

申请日：2001-02-14

发明人： Stefano Barone ,  Sergio Gallo ,  Claudio Mus

IPC分类号： C21D001/00 ,  C22F001/04

CPC分类号： C22F1/06 ,  C21D2241/02 ,  C22F1/00 ,  C22F1/04 ,  C22F1/047 ,  C22F1/057 ,  C22F1/183

摘要： A method of producing light alloy castings by foundry technology in which, after solidification and shake-out, the casting is subjected to a heat-treatment cycle comprising a solution heat-treatment step at a temperature high enough to put into solution the phases precipitated in the course of the solidification of the casting, possibly followed by a quenching step and an ageing step, wherein the solution heat-treatment step is performed at least partially in hot isostatic pressing conditions.

摘要翻译： 一种通过铸造技术制造轻质合金铸件的方法，其中在固化和摇匀之后，使铸件经受包括固溶热处理步骤在内的热处理循环，所述热处理循环在足够高的温度下使相沉淀在溶液中 铸件的凝固过程，可能之后是淬火步骤和老化步骤，其中固溶热处理步骤至少部分地在热等静压条件下进行。

公开(公告)号：US20040261915A1

公开(公告)日：2004-12-30

申请号：US10889956

申请日：2004-07-13

申请人： Nisshin Steel Co., Ltd.

发明人： Junichi Katsuki ,  Teruyoshi Iida ,  Takashi Yamauchi ,  Satoshi Suzuki ,  Naoto Hiramatsu

IPC分类号： C21D001/00

CPC分类号： C22C38/001 ,  C21C5/005 ,  C21C7/06 ,  C22C38/42 ,  C22C38/58

摘要： A new austenitic stainless steel containing approximately 0.1-1.0 mass % of Si and not more than approximately 0.003 mass % of Al. Nonmetallic inclusions dispersed in a steel matrix are converted to MnOnullSiO2nullAl2O3 containing not less than approximately 15 mass % of SiO2 and not more than approximately 40 mass % of Al2O3. During steel making, molten steel is covered with basic slag and heavily deoxidized with a Si alloy whose Al content is controlled to not more than approximately 1.0 mass % in a vacuum or non-oxidizing atmosphere. The austenitic stainless steel sheet can be formed to an objective shape without the occurrence of cracking due to its decrease in susceptibility to cracking and its good formability.

公开(公告)号：US20030029530A1

公开(公告)日：2003-02-13

申请号：US10221534

申请日：2002-09-13

发明人： Hans-Toni Junius

IPC分类号： C21D001/00 ,  C22F001/00

CPC分类号： B22D11/008 ,  Y10S428/924 ,  Y10S428/925 ,  Y10S428/926 ,  Y10S428/94 ,  Y10T428/12458 ,  Y10T428/12472 ,  Y10T428/12958 ,  Y10T428/12965 ,  Y10T428/12986

摘要： The invention relates to a method for the production of thin-walled steel components and similar components, comprising an inner core layer (B) and an external boundary layer (A). Said layers are, at least partly, differently annealed. According to the invention, the disadvantages of conventional roll-cladding and case-hardening processes may be overcome by the following methodology: bonding core and boundary layers made from differently annealed steel alloys, in a casting process to give a combined material with flat alloy gradients on the boundary surfaces, moulding the composite material to the dimensions of the thin-walled components, annealing the components by heat treatment, whereby the layers made from the differently annealed steel alloys obtain different annealing properties.

摘要翻译： 本发明涉及一种制造薄壁钢部件和类似部件的方法，包括内芯层（B）和外边界层（A）。 所述层至少部分地不同地退火。 根据本发明，通过以下方法可以克服常规辊包层和表面硬化过程的缺点：在铸造过程中将不同退火钢合金制成的芯和边界层粘合在一起，以得到具有平坦合金梯度的组合材料 在边界表面上，将复合材料成型为薄壁部件的尺寸，通过热处理退火部件，由此由不同退火的钢合金制成的层获得不同的退火性能。

公开(公告)号：US20020162612A1

公开(公告)日：2002-11-07

申请号：US09796355

申请日：2001-03-02

申请人： Stein Heurtey

发明人： Didier Delaunay ,  Alain Morel

IPC分类号： C21D001/00

CPC分类号： C21D1/52 ,  C21D9/56 ,  C21D11/00

摘要： Process for preheating metal, especially steel strip in direct-fired preheating sections for the purpose of limiting the oxidation of the heated metal strip, whatever the production configurations, which consists in using a preheating zone that can be divided, along its length, into a plurality of zones of unit length corresponding to one burner, it being possible for each of the said burners to be operated individually under fixed conditions so as to accurately adjust its air/gas setting, and therefore the resulting atmosphere in the furnace, wherein a certain number of burners starting from the downstream end of the preheating zone are ignited, the length of the furnace zone affected by the ignition of the said burners and the length of the recovery zone, i.e. the zone in which the burners are extinguished, being variable depending on the heat demand and in that each burner operates at full power and with a constant air/gas setting.

摘要翻译： 用于预热金属，特别是在直接燃烧预热部分中的钢带的方法，用于限制加热的金属带的氧化，无论什么生产构造，其包括使用沿其长度可以分割的预热区域 多个对应于一个燃烧器的单位长度的区域，每个燃烧器可以在固定的条件下单独操作，以便精确地调节其空气/气体的设定，并因此在炉中产生所得的气氛，其中一定的 从预热区的下游端开始的燃烧器的数量被点燃，受到所述燃烧器点火影响的炉区长度和恢复区的长度，即燃烧器熄灭的区域是可变的 在热需求上，每个燃烧器以全功率运行并且具有恒定的空气/气体设置。

公开(公告)号：US20020153358A1

公开(公告)日：2002-10-24

申请号：US10122838

申请日：2002-04-15

发明人： Toshihiko Inoue ,  Masaki Itoh ,  Toshihiko Asari ,  Naoomi Miyagawa

IPC分类号： B23K026/00 ,  C21D001/00

CPC分类号： B23K26/10 ,  B23K26/082 ,  B23K26/1476 ,  B23K26/1482 ,  B23K26/702 ,  Y10T483/17

摘要： A saddle 18 is movable along a guide means 16 provided, passing through an neighborhood of machining area MA of a plurality of machine tools 1, 2. The saddle 18 is provided with a machining head 33, being free to selectively insert in and retreat from the machining area MA, and a plurality of kinds of nozzles 48 for ejecting laser beam. The nozzle 48 suitable for a portion of workpiece 3, 4 to be hardened is selected so as to attach it to the machining head 33. When hardening is instructed, the nozzle 48 is moved to a desired position with respect to the workpiece 3, 4 in the state of the workpiece 3, 4 located on the machine tool 1, 2, and the laser beam 51 is ejected from the nozzle 48 so as to harden the workpiece 3, 4.

摘要翻译： 鞍座18可沿着穿过多个机床1,2的加工区域MA附近的引导装置16移动。鞍座18设置有加工头部33，其可选择性地插入和退出 加工区域MA和用于喷射激光束的多种喷嘴48。 选择适合于要硬化的工件3,4的一部分的喷嘴48，以便将其附接到加工头33.当指示硬化时，喷嘴48相对于工件3,4移动到期望的位置 在位于机床1,2上的工件3,4的状态下，激光束51从喷嘴48喷出，使工件3,4硬化。

公开(公告)号：US20020017746A1

公开(公告)日：2002-02-14

申请号：US09873694

申请日：2001-06-04

发明人： Max Eymin ,  Laurent Pelissier

IPC分类号： C21B007/24 ,  C21D011/00 ,  C21D001/00

CPC分类号： F27D99/0035 ,  C21D1/773 ,  C23C8/20

摘要： A cell and an equipment for thermally processing steel parts under low pressure, including heating means formed of several radiant gas tubes distributed around a useful volume of a tight chamber, and control means provided with at least one mode of pulse regulation of the heating means.

摘要翻译： 一种电池和用于在低压下热处理钢部件的设备，包括由分布在有效容积的紧密室中的几个辐射气体管形成的加热装置，以及设置有加热装置的至少一个脉冲调节模式的控制装置。