METHOD OF MAKING A FECRAL MATERIAL AND SUCH MATERIAL---------
    83.
    发明公开
    METHOD OF MAKING A FECRAL MATERIAL AND SUCH MATERIAL--------- 有权
    PROCESS FOR FE-Cr-Al合金和这样的合金

    公开(公告)号:EP1257375A1

    公开(公告)日:2002-11-20

    申请号:EP00990143.0

    申请日:2000-12-18

    Abstract: A method of producing an FeCrAl material by gas atomisation, wherein in addition to containing iron (Fe), chromium (Cr) and aluminium (Al) the material also contains minor fractions of one or more of the materials molybdenum (Mo), hafnium (Hf), zirconium (Zr), yttrium (Y), nitrogen (N), carbon (C) and oxygen (O). The invention is characterised by causing the smelt to be atomised to contain 0.05-0.50 percent by weight tantalum (Ta) and, at the same time, less than 0.10 percent by weight titanium (Ti). According to one highly preferred embodiment, nitrogen gas (N2) is used as an atomising gas to which a given amount of oxygen gas (O2) is added, said amount of oxygen gas being such as to cause the atomised powder to contain 0.02-0.10 percent by weight oxygen (0) at the same time as the nitrogen content of the powder is 0.01-0.06 percent by weight. The invention also relates to a high temperature material.

    METAL NICKEL POWDER
    84.
    发明公开
    METAL NICKEL POWDER 有权
    镍METALLPULVER

    公开(公告)号:EP1025936A1

    公开(公告)日:2000-08-09

    申请号:EP99931450.3

    申请日:1999-07-21

    Abstract: The present invention provides a metallic nickel powder in which the occurrence of delamination can be prevented by providing superior sintering properties in production processes for multilayer ceramic capacitors and by providing superior dispersion characteristics in the forming of conductive pastes. By being brought into contact with nickel chloride gas and a reducing gas at a temperature in the range of the reduction reaction, metallic nickel powder is produced in which the oxygen content is 0.1 to 2.0% by weight and there is no absorption peak at wavelengths ranging from 3600 to 3700 cm -1 in infrared spectroscopy.

    Abstract translation: 本发明提供一种金属镍粉末,其中通过在多层陶瓷电容器的制造方法中提供优异的烧结性能并且在形成导电浆料中提供优异的分散特性,可以防止分层的发生。 通过在还原反应范围内的温度下与氯化镍气体和还原气体接触,制得金属镍粉末,其中氧含量为0.1〜2.0重量%,在波长范围内不存在吸收峰 从3600到3700cm -1的红外光谱。

    METHOD OF RECYCLING SCRAP METAL
    85.
    发明授权
    METHOD OF RECYCLING SCRAP METAL 失效
    方法进行回收废钢

    公开(公告)号:EP0680393B1

    公开(公告)日:1998-07-22

    申请号:EP92907404.5

    申请日:1992-01-31

    Abstract: PCT No. PCT/US92/00807 Sec. 371 Date Jul. 28, 1993 Sec. 102(e) Date Jul. 28, 1993 PCT Filed Jan. 31, 1992 PCT Pub. No. WO92/13664 PCT Pub. Date Aug. 20, 1992.A method of embrittling cleaned steel particles is described, followed by a grinding and sorting operation. Depending on the initial carbon content of the steel scrap, a reducing and carbon-containing atmosphere may be provided to carburize the particles as they are being embrittled. A quenching operation is provided at the end of the process to embrittle the particles and before the particles are ground. The ground grit which is produced may then be sorted by size and used as an abrasive compound, or, alternatively may be further ground and annealed in a subsequent operation to provide suitable powder for forming sintered parts. Prior to annealing the grit may be further ground in a partial oxidizing atmosphere to preoxidize the powder, in order to provide oxygen directly within the powder to react with any residual carbon so that the carbon monoxide gas can be formed and the powder can be substantially free of both carbon and oxides when the reaction is complete. Alternatively, the powder may be preheated in a controlled atmosphere prior to annealing to preoxidize the powder.

    Material and process for manufacturing resistance welding electrodes
    86.
    发明公开
    Material and process for manufacturing resistance welding electrodes 失效
    Werkstoff und Verfahren zum Herstellen von Widerstandsschweisselektroden

    公开(公告)号:EP0745452A1

    公开(公告)日:1996-12-04

    申请号:EP96400223.2

    申请日:1996-02-01

    Inventor: Moon, Jung-Gi

    Abstract: The present invention relates to the methods for the manufacture of the electrode material applicable to special bonding of the light metal elements or the spot resistance welding ,and also of the electrode itself.
    Those methods include the annealing treatment process which heats Cu-Al alloy metal and anneals in the vacuum state, the pretreatment reduction process generating pure Cu-Al alloy without the oxide by reducing the Cu-Al alloy powder which is annealed as above in the hydrogen atmosphere at 400∼500o C, the first oxidizing process which oxidizes the surface by heating above mentioned Cu-Al alloy without oxide in the air or oxygen atmosphere at 400∼500o C, the internal oxidizing process which Al in Cu-Al alloy powder is internally oxidized by heating above Cu-Al alloy powder oxidized at the first oxidizing process in the inert gas atmosphere at 900∼1000o C, and further the reduction process reducing above internally oxidized Cu-Al203 alloy powder in the hydrogen atmosphere.
    In summary the method for manufacturing the electrode material of Cu-Al203 powder through above mentioned various processes and for the electrode of it could be achieved.

    Abstract translation: 本发明涉及可用于轻金属元件或点电阻焊接的特殊接合的电极材料的制造方法以及电极本身的制造方法。 这些方法包括在真空状态下加热Cu-Al合金金属和退火的退火处理工艺,预处理还原工艺通过将如上所述退火的Cu-Al合金粉末在氢气中生成没有氧化物的纯Cu-Al合金 气氛400〜500℃,第一氧化处理通过在空气或氧气氛中加热400〜500℃的上述Cu-Al合金而不氧化而氧化表面,Cu-Al合金粉末中Al的内部氧化过程为 通过加热在第一氧化过程中氧化的Cu-Al合金粉末在惰性气体气氛中在900-300℃下进行内部氧化,进一步减少在氢气氛中内部氧化的Cu-Al 2 O 3合金粉末的还原过程。 综上所述,可以通过上述各种工艺制造Cu-Al 2 O 3粉末的电极材料及其电极的方法。

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