中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

353 records (took 0.029 seconds)

    STEEL MATERIAL HAVING HIGH DUCTILITY AND HIGH STRENGTH AND PROCESS FOR PRODUCTION THEREOF
    141.
    发明公开
    STEEL MATERIAL HAVING HIGH DUCTILITY AND HIGH STRENGTH AND PROCESS FOR PRODUCTION THEREOF 失效
    用于生产钢管高韧性和强度

    公开(公告)号：EP0940476A1

    公开(公告)日：1999-09-08

    申请号：EP98917694.6

    申请日：1998-04-27

    Applicant: Kawasaki Steel Corporation

    Inventor： TOYOOKA, Takaaki Technical Research Laboratories ,  YORIFUJI, Akira Technical Research Laboratories ,  NISHIMORI,Masanori Technical Research Laboratories ,  ITADANI, Motoaki Technical Research Laboratories ,  HASHIMOTO, Yuji Technical Research Laboratories ,  OKABE, Takatoshi Technical Research Laboratories ,  TANAKA, Nobuki Chita Works ,  KANAYAMA, Taro Chita Works ,  FURUKIMI, Osamu Technical Research Laboratories ,  MORITA, Masahiko Technical Research Laboratories ,  HIRA, Takaaki Technical Research Laboratories ,  MATSUOKA, Saiji Technical Research Laboratories

    IPC: C22C38/00 ,  C22C38/14 ,  C22C38/44 ,  C22C38/54 ,  C21D8/00 ,  C21D8/10

    CPC classification number: C21D8/10 ,  C21D2201/00 ,  C21D2211/005

    Abstract: A steel product having a structure composed mainly of ferrite or ferrite plus pearlite or ferrite plus cementite. A steel pipe produced from this steel product by rolling at a ferrite recrystallization temperature such that the reduction of area is greater than 20%. This steel pipe is characterized by grain size not greater than 3 µm, preferably not greater than 1 µm, elongation greater than 20%, tensile strength (TS : MPa) and elongation (El : %) whose product is greater than 10000, and percent ductile fracture greater than 95%, preferably 100%, measured by Charpy impact test on an actual pipe at -100°C. The structure is characterized by C : 0.005-0.03%, Si : 0.01-3.0%, Mn : 0.01-2.0%, and Al : 0.001-0.10% on a weight basis, and is composed of ferrite or ferrite and a secondary phase, with ferrite grains being not greater than 3 µm and the secondary phase having an areal ratio not more than 30%. The steel pipe is produced from a steel pipe stock having the above-mentioned composition by heating at a temperature of (Ac 1 + 50°C) to 400°C and subsequently performing reducing on it at a rolling temperature of (Ac 1 + 50°C) to 400°C such that the cumulative reduction of diameter is greater than 20%. The reducing is preferably performed such that at least one of rolling passes reduces the diameter by more than 6% per pass. The steel pipe will have high ductility and high strength and will be superior in toughness and stress corrosion cracking resistance, if the content of C, Si, Mn, and other alloying elements is limited low and reducing is performed at the temperature specified above. The resulting steel pipe has good fatigue resistance and is suitable for use as line pipe.

    Abstract translation: 具有由铁素体构成的铁素体或铁素体为主加珠光体或渗碳加结构的钢产品。 通过在检查温度铁氧体再结晶轧制从该钢材制造的钢管做面积的减小是大于20％。 这种钢管是通过晶粒尺寸不大于3微米为特征的，最好不超过1微米时，伸长率大于20％，拉伸强度（TS：兆帕）和伸长率（EL：％），其乘积大于10,000， 0.005-0.03％的Si：和百分比延性断裂大于95％，优选100％，在-100℃下的结构上，以实际管道通过夏比冲击试验测得的由C，其特征0.01-3.0％以下，Mn：0.01 -2.0％及Al：基于重量0.001-0.10％，并且由铁素体或铁氧体和二次相的，与铁素体晶粒为不大于3微米，并具有上面积比第二相不超过30 ％。 钢管从具有通过加热上述组合物在（Ac 1相+ 50℃）至400℃的温度，并随后执行在（Ac1点+ 50℃的轧制温度减少在其上的钢管股票产生 ）至400℃检测做直径的累积压下率大于20％。 所述还原优选进行搜索做轧制道次中的至少一个通过每道次超过6％减少的直径。 钢管将具有高延性和高强度，将在韧性和应力腐蚀开裂性，如果的C，Si，Mn和其它合金元素的含量被限制低以及减少在上述规定的温度下进行优异。 将得到的钢管具有很好的抗疲劳性，并适合于用作管线管用。

    Surface treatment of a metal part
    144.
    发明授权
    Surface treatment of a metal part 有权
    金属部件的表面处理

    公开(公告)号：US09382609B2

    公开(公告)日：2016-07-05

    申请号：US14126602

    申请日：2012-06-18

    Applicant: Tony Prezeau ,  Teddy Muller ,  Michel Baron ,  Joan Samuel ,  Emmanuel Dransart

    Inventor： Tony Prezeau ,  Teddy Muller ,  Michel Baron ,  Joan Samuel ,  Emmanuel Dransart

    IPC: C23C8/02 ,  C23C8/32 ,  C23C8/38 ,  C21D7/06 ,  C23C8/76 ,  B82Y30/00 ,  C21D7/04

    CPC classification number: C23C8/76 ,  B82Y30/00 ,  C21D7/04 ,  C21D7/06 ,  C21D2201/00 ,  C21D2201/03 ,  C21D2211/004 ,  C23C8/02 ,  C23C8/32 ,  C23C8/38

    Abstract: A process for the surface treatment of a metal part comprises:exposing a surface (1) of the metal part to a stream of substantially spherical particles, so that any portion of said surface receives said particles along several primary incidences, the primary incidences of the particles on a portion of the surface being essentially distributed in a cone or a conical film which has an outer half apex angle between 10° and 45°, until a surface layer (3) of nanostructures having an average thickness of several tens of microns is obtained, the particles having a diameter of less than 2 mm and greater than 0.1 mm and being projected at a speed between 40 m/s and 100 m/s. A thermochemical treatment is then applied, in particular a low-temperature treatment of the nitriding type or a high-temperature treatment of the low-pressure carbonitriding type.

    Abstract translation: 用于金属部件的表面处理的方法包括：将金属部件的表面（1）暴露于基本上为球形的颗粒的流中，使得所述表面的任何部分沿着几个主要入射点接收所述颗粒，主要发生 表面部分上的颗粒基本上分布在具有10°至45°之间的外半顶角的圆锥或圆锥形膜中，直到具有几十微米平均厚度的纳米结构的表面层（3）为 所述颗粒具有小于2mm且大于0.1mm的直径并以40m / s至100m / s的速度投影。 然后进行热化学处理，特别是氮化型的低温处理或低压碳氮共渗型的高温处理。

    METHOD OF PRODUCING A NANO-TWINNED TITANIUM MATERIAL BY CASTING
    146.
    发明申请
    METHOD OF PRODUCING A NANO-TWINNED TITANIUM MATERIAL BY CASTING 审中-公开
    通过铸造生产纳米二氧化钛材料的方法

    公开(公告)号：US20150034216A1

    公开(公告)日：2015-02-05

    申请号：US13996243

    申请日：2011-12-21

    Applicant: Guocai Chai

    Inventor： Guocai Chai

    IPC: C22F1/18

    CPC classification number: C22F1/183 ,  C21D6/04 ,  C21D2201/00

    Abstract: A method of producing a nano twinned commercially pure titanium material includes the step of casting a commercially pure titanium material, that apart from titanium, contains not more than 0.05 wt % N; not more than 0.08 wt % C; not more than 0.015 wt % H; not more than 0.50 wt % Fe; not more than 0.40 wt % O; and not more than 0.40 wt % residuals. The material is brought to a temperature at or below 0° C. and plastic deformation is imparted to the material at that temperature to such a degree that nano twins are formed in the material.

    Abstract translation: 制造纳米双重商业纯钛材料的方法包括铸造商业纯钛材料的步骤，除钛之外，钛材料含有不多于0.05重量％的N; 不超过0.08重量％C; 不大于0.015wt％H; 不超过0.50重量％的Fe; 不大于0.40重量％的O; 和不大于0.40重量％的残留物。 将材料置于等于或低于0℃的温度下，在该温度下向材料施加塑性变形，使得材料中形成纳米双胞胎。

    SURFACE TREATMENT OF A METAL PART
    147.
    发明申请
    SURFACE TREATMENT OF A METAL PART 有权
    金属部件的表面处理

    公开(公告)号：US20140166160A1

    公开(公告)日：2014-06-19

    申请号：US14126602

    申请日：2012-06-18

    Applicant: Tony Prezeau ,  Teddy Muller ,  Michel Baron ,  Joan Samuel ,  Emmanuel Dransart

    Inventor： Tony Prezeau ,  Teddy Muller ,  Michel Baron ,  Joan Samuel ,  Emmanuel Dransart

    IPC: C23C8/76

    CPC classification number: C23C8/76 ,  B82Y30/00 ,  C21D7/04 ,  C21D7/06 ,  C21D2201/00 ,  C21D2201/03 ,  C21D2211/004 ,  C23C8/02 ,  C23C8/32 ,  C23C8/38

    Abstract: A process for the surface treatment of a metal part comprises: exposing a surface (1) of the metal part to a stream of substantially spherical particles, so that any portion of said surface receives said particles along several primary incidences, the primary incidences of the particles on a portion of the surface being essentially distributed in a cone or a conical film which has an outer half apex angle between 10° and 45°, until a surface layer (3) of nanostructures having an average thickness of several tens of microns is obtained, the particles having a diameter of less than 2 mm and greater than 0.1 mm and being projected at a speed between 40 m/s and 100 m/s. A thermochemical treatment is then applied, in particular a low-temperature treatment of the nitriding type or a high-temperature treatment of the low-pressure carbonitriding type.

    Abstract translation: 用于金属部件的表面处理的方法包括：将金属部件的表面（1）暴露于基本上为球形的颗粒的流中，使得所述表面的任何部分沿着几个主要入射点接收所述颗粒，主要发生 表面部分上的颗粒基本上分布在具有10°至45°之间的外半顶角的圆锥或圆锥形膜中，直到具有几十微米平均厚度的纳米结构的表面层（3）为 所述颗粒具有小于2mm且大于0.1mm的直径并以40m / s至100m / s的速度投影。 然后进行热化学处理，特别是氮化型的低温处理或低压碳氮共渗型的高温处理。

    METHOD OF SCALE SUBSTRATE MANUFACTURE
    148.
    发明申请
    METHOD OF SCALE SUBSTRATE MANUFACTURE 审中-公开
    规模基板制造方法

    公开(公告)号：US20130335071A1

    公开(公告)日：2013-12-19

    申请号：US14002231

    申请日：2012-03-05

    Applicant: Peter Kogej ,  Vojteh Leskovsek

    Inventor： Peter Kogej ,  Vojteh Leskovsek

    IPC: G01D5/12 ,  B23P13/00 ,  C23C8/38

    CPC classification number: G01D5/12 ,  B23P13/00 ,  C21D7/02 ,  C21D7/10 ,  C21D8/12 ,  C21D8/1233 ,  C21D8/1277 ,  C21D8/1294 ,  C21D9/00 ,  C21D9/0068 ,  C21D10/00 ,  C21D10/005 ,  C21D2201/00 ,  C21D2211/001 ,  C21D2211/008 ,  C23C8/02 ,  C23C8/38 ,  H01F1/16 ,  Y10T29/49

    Abstract: The present invention relates to a method for producing a magnetic substrate for an encoder scale. The method comprising the step of mechanically working the substrate, wherein the substrate is cooled prior to the mechanical working step. In one embodiment, a stainless steel substrate is used. The stainless steel may comprise an austenite (non-magnetic) phase and a martensite (magnetic) phase. Mechanically working and cooling in this manner increases the amount of magnetic (martensite) phase material that is formed, thereby improving the magnetic contrast when non-magnetic (austenite) marking are subsequently formed on the substrate by laser marking.

    Abstract translation: 本发明涉及一种用于编码刻度尺的磁性基板的制造方法。 所述方法包括机械加工所述基底的步骤，其中所述基底在所述机械加工步骤之前被冷却。 在一个实施例中，使用不锈钢衬底。 不锈钢可以包括奥氏体（非磁性）相和马氏体（磁）相。 以这种方式机械地加工和冷却增加了形成的磁（马氏体）相材料的量，从而通过激光标记随后在基板上形成非磁性（奥氏体）标记，从而提高了磁对比度。

    Hot rolled steel sheet
    150.
    发明授权
    Hot rolled steel sheet 有权
    热轧钢板

    公开(公告)号：US07662243B2

    公开(公告)日：2010-02-16

    申请号：US10571023

    申请日：2004-09-02

    Applicant: Tatsuo Yokoi ,  Tetsuya Yamada ,  Osamu Kawano

    Inventor： Tatsuo Yokoi ,  Tetsuya Yamada ,  Osamu Kawano

    IPC: C22C38/02 ,  C22C38/04 ,  C22C38/06

    CPC classification number: C23C2/02 ,  C21D8/0226 ,  C21D2201/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C2/28 ,  Y10T428/12799

    Abstract: An exemplary hot rolled steel sheet can included, in terms of percent by mass, C of 0.01 to 0.2%; Si of 0.01 to 2%; Mn of 0.1 to 2%; P of ≦0.1%; S of ≦0.03%; Al of 0.001 to 0.1%; N of ≦ 0.01%; and as a remainder, Fe and unavoidable impurities. For example, a microstructure can be substantially a homogeneous continuous-cooled microstructure, and an average grain size of the microstructure may be more than 8 μm and 30 μm or less. An exemplary method for manufacturing a hot rolled steel sheet can include subjecting a slab having the above composition to a rough rolling so as to obtain a rough rolled bar, subjecting the rough rolled bar to a finish rolling so as to obtain a rolled steel under conditions in which a finishing temperature is (Ar3 transformation point +50° C.) or more; and starting cooling the rolled steel after 0.5 seconds or more pass from the end of the finish rolling at a temperature of the Ar3 transformation point or more. At least in the temperature range from the Ar3 transformation point can be cooled to 500° C. at a cooling rate of 80°C./sec or more, a further cooling can be effectuated until the temperature is 500° C. or less to obtain a hot rolled steel sheet and coiling the hot rolled steel sheet.

    Abstract translation: 作为热轧钢板，可以以质量％计含有0.01〜0.2％的C， Si为0.01〜2％ Mn为0.1〜2％ P <0.1％; S <0.03％; Al为0.001〜0.1％; N <0.01％; 作为余量，Fe和不可避免的杂质。 例如，微结构可以是基本均匀的连续冷却微结构，并且微结构的平均晶粒尺寸可以大于8μm和30μm或更小。 用于制造热轧钢板的示例性方法可以包括对具有上述组成的板坯进行粗轧以获得粗轧条，对粗轧条进行精轧，以在条件下获得轧制钢 其中终轧温度为（Ar3相变点+ 50℃）以上; 在Ar3相变点以上的温度下，从精轧结束0.5秒钟以上开始冷却轧制钢。 至少在Ar 3相变点的温度范围内可以以80℃/秒以上的冷却速度将其冷却至500℃，进一步冷却直到温度为500℃以下 得到热轧钢板并卷取热轧钢板。

Patent Agency Ranking