Arc segment magnet, ring magnet and method for producing such magnets
    2.
    再颁专利
    Arc segment magnet, ring magnet and method for producing such magnets 有权
    弧段磁铁,环形磁铁及其制造方法

    公开(公告)号:USRE40348E1

    公开(公告)日:2008-06-03

    申请号:US10701020

    申请日:2003-11-05

    IPC分类号: B22F3/00

    摘要: A thin arc segment magnet made of a an R-T-B based, rare earth sintered magnet substantially comprising 28-33 weight % of R and 0.8-1.5 weight % of B, the balance being substantially Fe T, wherein R is at least one rare earth element including Y, and T is Fe or Fe and Co, which has an oxygen content of 0.3 weight % or less, a density of 7.56 g/cm3 or more, a coercivity iHc of 1.1 MA/m (14 kOe) or more at room temperature, and an orientation Br/4πImax of 96% or more in an anisotropy-providing direction at room temperature can be produced by using a slurry mixture formed by introducing fine alloy powder of the above composition into a mixture liquid comprising 99.7-99.99 parts by weight of a mineral oil, a synthetic oil or a vegetable oil and 0.01-0.3 parts by weight of a nonionic surfactant and/or an anionic surfactant.

    摘要翻译: 一个由<?delete-start id =“DEL-S-00001”date =“20080603”?> a <?delete-end id =“DEL-S-00001”?> <?insert-start id =“INS-S-00001”date =“20080603”?>基于RTB的<?insert-end id =“INS-S-00001”→稀土烧结磁体,其基本上包含28-33重量%的R和 B的0.8-1.5重量%,余额基本上<?delete-start id =“DEL-S-00002”date =“20080603”?Fe <?delete-end id =“DEL-S-00002”?> <?insert-start id =“INS-S-00002”date =“20080603”?> T <?insert-end id =“INS-S-00002”?>其中,R是至少一个稀土元素,包括Y ,T为Fe,Fe,Co,氧含量为0.3重量%以下,密度为7.56g / cm 3以上,矫顽力iHc为1.1MA / m(14 kOe)以上,并且室温下各向异性提供方向的取向Br / 4piI最大值为96%以上,可以通过使用通过引入细合金粉末形成的浆料混合物 的上述组合物混合成混合物 包含99.7-99.99重量份矿物油,合成油或植物油和0.01-0.3重量份非离子表面活性剂和/或阴离子表面活性剂的液体。

    Arc segment magnet, ring magnet and method for producing such magnets
    3.
    发明授权
    Arc segment magnet, ring magnet and method for producing such magnets 有权
    弧段磁铁,环形磁铁及其制造方法

    公开(公告)号:US06312494B1

    公开(公告)日:2001-11-06

    申请号:US09610476

    申请日:2000-07-05

    IPC分类号: B22F300

    CPC分类号: H01F41/0273 H01F1/0577

    摘要: A thin arc segment magnet made of a rare earth sintered magnet substantially comprising 28-33 weight % of R and 0.8-1.5 weight % of B, the balance being substantially Fe, wherein R is at least one rare earth element including Y, and T is Fe or Fe and Co, which has an oxygen content of 0.3 weight % or less, a density of 7.56 g/cm3 or more, a coercivity iHc of 1.1 MA/m (14 kOe) or more at room temperature, and an orientation Br/4&pgr;Imax of 96% or more in an anisotropy-providing direction at room temperature can be produced by using a slurry mixture formed by introducing fine alloy powder of the above composition into a mixture liquid comprising 99.7-99.99 parts by weight of a mineral oil, a synthetic oil or a vegetable oil and 0.01-0.3 parts by weight of a nonionic surfactant and/or an anionic surfactant.

    摘要翻译: 一种由稀土烧结磁体制成的薄弧形磁体,其基本上包含28-33重量%的R和0.8-1.5重量%的B,余量基本上为Fe,其中R是至少一种包括Y的稀土元素,T 是Fe或Fe和Co,其氧含量为0.3重量%以下,密度为7.56g / cm 3以上,室温下的矫顽力iHc为1.1MA / m(14kOe)以上,取向性 室温各向异性提供方向的Br / 4piImax为96%以上可以通过使用通过将上述组成的微细合金粉末引入到包含99.7-99.99重量份的矿物油 ,合成油或植物油,0.01-0.3重量份非离子表面活性剂和/或阴离子表面活性剂。

    HIGH-NITROGEN STAINLESS STEEL PIPE WITH HIGH STRENGTH, HIGH DUCTILITY, AND EXCELLENT CORROSION AND HEAT RESISTANCE AND PROCESS FOR PRODUCING SAME

    公开(公告)号:US20130004883A1

    公开(公告)日:2013-01-03

    申请号:US13577173

    申请日:2011-02-04

    摘要: Provided is a novel high-nitrogen stainless-steel pipe which is not obtained with any conventional technique, the stainless-steel pipe having high strength, high ductility, and excellent corrosion and heat resistance and being obtained through size reduction of crystal grains and strengthening by slight plastic working besides formation of a gradient structure in which the concentration of solid-solution nitrogen continuously decreases gradually from the surface. Also provided are hollow materials of various shapes and sizes which are formed from the steel pipe and processes for producing the steel pipe and the hollow materials. An austenitic stainless-steel pipe is treated in a range of the temperatures not higher than the critical temperature for crystal grain enlargement of the steel pipe material to cause nitrogen (N) to be absorbed into the surface of the pipe and diffused into the solid phase, while minimizing the enlargement of crystal grains during the treatment. Thus, a gradient structure is formed, the structure including a part that is close to the surface part of the pipe and has been highly strengthened by the formation of a high-concentration solid solution of N and a part in which ductility gradually increases toward around the center of the cross-section of the pipe as the N concentration decreases. Thereafter, the pipe is subjected to size reduction of crystal grains by utilizing, for example, eutectoid transformation of the austenite phase, thereby greatly improving the elongation (ductility) of the steel pipe. Furthermore, the steel pipe is strengthened by slight plastic working to give a high-nitrogen austenitic stainless-steel pipe having high strength, high ductility, and excellent corrosion and heat resistance. A plurality of the thus-obtained high-nitrogen austenitic stainless steel pipes of the same quality are disposed one over another so as to result in dimensions, e.g., diameter and wall thickness, according to the use or strength level, and this pipe arrangement is united by adhesion processing through hot drawing, hot rolling, or other method to give a high-nitrogen austenitic stainless-steel pipe or hollow material which has high strength, high ductility, and heat resistance and has repetitions of the gradient structure within the wall. This stainless-steel pipe or hollow material can have large or small sizes and be of various kinds, and examples thereof include a hollow material for use as a container for storing high-pressure hydrogen gas which is for fuel cell vehicles (FCVs) and which does not suffer hydrogen gas embrittlement (HGE) in the presence of high-pressure hydrogen gas.

    Nano-crystal austenitic steel bulk material having ultra-hardness and toughness and excellent corrosion resistance, and method for production thereof
    5.
    发明授权
    Nano-crystal austenitic steel bulk material having ultra-hardness and toughness and excellent corrosion resistance, and method for production thereof 失效
    具有超硬度,韧性,耐腐蚀性优异的纳米晶体奥氏体钢体材料及其制造方法

    公开(公告)号:US07662207B2

    公开(公告)日:2010-02-16

    申请号:US10529418

    申请日:2003-09-26

    IPC分类号: B22F3/00

    摘要: The invention provides a super hard and tough, nano-crystal austenite steel bulk material having an improved corrosion resistance, and its preparation process.The austenite steel bulk material comprises an aggregate of austenite nano-crystal grains containing 0.1 to 2.0% (by mass) of a solid solution type nitrogen, wherein an oxide, nitride, carbide or the like of a metal or semimetal exists as a crystal grain growth inhibitor between and/or in said nano-crystal grains.For preparation, fine powders of austenite steel-forming components, i.e., iron and chromium, nickel, manganese, carbon or the like are mixed with a substance that becomes a nitrogen source. Mechanical alloying (MA) is applied to the mixture, thereby preparing nano-crystal austenite steel powders having a high nitrogen concentration. Finally, the austenite steel powders are consolidated by sintering by means of spark plasma sintering, rolling or the like.

    摘要翻译: 本发明提供了具有改善的耐腐蚀性的超硬和坚韧的纳米晶体奥氏体钢体材料及其制备方法。 奥氏体钢本体材料包含含有0.1〜2.0质量%的固溶体型氮的奥氏体纳米晶粒集合体,其中作为晶粒存在金属或半金属的氧化物,氮化物,碳化物等 所述纳米晶粒之间和/或之间的生长抑制剂。 为了制备,将奥氏体钢成形组分即铁和铬,镍,锰,碳等的细粉末与成为氮源的物质混合。 将机械合金化(MA)施加到混合物上,从而制备氮浓度高的纳米级奥氏体钢粉末。 最后,奥氏体钢粉末通过放电等离子体烧结,轧制等烧结来固结。

    Nano-crystal austenitic steel bulk material having ultra-hardness and toughness and excellent corrosion resistance, and method for production thereof
    7.
    发明申请
    Nano-crystal austenitic steel bulk material having ultra-hardness and toughness and excellent corrosion resistance, and method for production thereof 失效
    具有超硬度,韧性,耐腐蚀性优异的纳米晶体奥氏体钢体材料及其制造方法

    公开(公告)号:US20060193742A1

    公开(公告)日:2006-08-31

    申请号:US10529418

    申请日:2003-09-26

    IPC分类号: B22F3/105

    摘要: The invention provides a super hard and tough, nano-crystal austenite steel bulk material having an improved corrosion resistance, and its preparation process. The austenite steel bulk material comprises an aggregate of austenite nano-crystal grains containing 0.1 to 2.0% (by mass) of a solid solution type nitrogen, wherein an oxide, nitride, carbide or the like of a metal or semimetal exists as a crystal grain growth inhibitor between and/or in said nano-crystal grains. For preparation, fine powders of austenite steel-forming components, i.e., iron and chromium, nickel, manganese, carbon or the like are mixed with a substance that becomes a nitrogen source. Mechanical alloying (MA) is applied to the mixture, thereby preparing nano-crystal austenite steel powders having a high nitrogen concentration. Finally, the austenite steel powders are consolidated by sintering by means of spark plasma sintering, rolling or the like.

    摘要翻译: 本发明提供了具有改善的耐腐蚀性的超硬和坚韧的纳米晶体奥氏体钢体材料及其制备方法。 奥氏体钢本体材料包含含有0.1〜2.0质量%固溶体氮的奥氏体纳米晶粒,其中作为晶粒存在金属或半金属的氧化物,氮化物,碳化物等 所述纳米晶粒之间和/或之间的生长抑制剂。 为了制备,将奥氏体钢成形组分即铁和铬,镍,锰,碳等的细粉末与成为氮源的物质混合。 将机械合金化(MA)施加到混合物上,从而制备氮浓度高的纳米级奥氏体钢粉末。 最后,奥氏体钢粉末通过放电等离子体烧结,轧制等烧结来固结。

    Method and apparatus for positioning workpiece to pallet in working line
    9.
    发明授权
    Method and apparatus for positioning workpiece to pallet in working line 失效
    将工件定位在工作线上的托盘的方法和装置

    公开(公告)号:US4896086A

    公开(公告)日:1990-01-23

    申请号:US225789

    申请日:1988-07-29

    摘要: A method and an apparatus for positioning a workpiece to a pallet on a working line. The line transports plural kinds of workpieces. Plural positioning pins are provided at various locations on each pallet to enable all the plural kinds of the workpieces to be carried by the pallets. Each positioning pin has a set position and a reset position. All positioning pins are first reset to the reset position. Thereafter, a selected positioning pin is set to the set position to accommodate a particular kind of workpiece. The positioning of the workpiece is accomplished by fitting a positioning hole defined by the selected workpiece onto the selected positioning pin.

    摘要翻译: 一种用于将工件定位在工作线上的托盘上的方法和装置。 线路输送多种工件。 多个定位销设置在每个托盘上的各个位置,以使得所有多种工件能够被托盘承载。 每个定位销具有设定位置和复位位置。 所有定位销首先复位到复位位置。 此后,将选定的定位销设置到设定位置以适应特定种类的工件。 通过将由所选择的工件限定的定位孔安装到所选择的定位销上来实现工件的定位。

    Video signal processing apparatus
    10.
    发明授权
    Video signal processing apparatus 有权
    视频信号处理装置

    公开(公告)号:US06882363B1

    公开(公告)日:2005-04-19

    申请号:US09492289

    申请日:2000-01-27

    摘要: An automatic gain controlling circuit controls a gain of a video signal from an imager having an electronic shutter function according to a gain control signal. An average detecting circuit detects an average level of a luminance signal of the video signal. An automatic exposure controlling circuit generates the gain control signal according to the luminance average level in response to a mode signal indicative of the cycles per second of the ac line and generates a timing signal corresponding to the ac line and a shutter speed control signal together with electronic shutter control signal generation circuit at a unit of the voltage variation cycle of the ac line according to the luminance average level such that a shutter interval of the imager is changed stepwise and each of the shutter intervals is an integer times the voltage variation cycle of the ac line. The automatic exposure controlling range is expanded by changing the shutter speed stepwise from {fraction (1/100)} sec, {fraction (2/100)} sec {fraction (3/100)} sec at 50-Hz-ac area, for example, to provide coarse exposure controlling and fine automatic gain controlling is provided every shutter interval to suppress flicker.

    摘要翻译: 自动增益控制电路根据增益控制信号控制来自具有电子快门功能的成像器的视频信号的增益。 平均检测电路检测视频信号的亮度信号的平均电平。 自动曝光控制电路响应于表示交流线路每秒周期的模式信号,根据亮度平均电平生成增益控制信号,并产生对应于交流线的定时信号和快门速度控制信号以及 电子快门控制信号发生电路,根据亮度平均水平以交流线路的电压变化周期为单位使得成像器的快门间隔逐步变化,并且每个快门间隔是电压变化周期的整数倍 交流线。 通过从{分数(1/100秒,{分数(2/100秒(分数(例如在50Hz-ac面积的3/100秒),以提供粗略的方式逐渐改变快门速度来扩大自动曝光控制范围 每个快门间隔提供曝光控制和精细自动增益控制,以抑制闪烁。