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    • 54. 发明公开
    • METHOD FOR THE ALUMINO-THERMITE WELDING OF RAILS AND DEVICE FOR CARRYING OUT SAID METHOD
    • 用于导轨的铝钎焊的方法和装置用于执行所述方法
    • EP3202522A1
    • 2017-08-09
    • EP15845828.1
    • 2015-05-14
    • Lykov, Aleksei MikhailovichKulchitskiy, Vladimir Antonovich
    • Lykov, Aleksei MikhailovichKulchitskiy, Vladimir Antonovich
    • B23K23/00
    • B23K23/00
    • This invention relates to the field of welding and may be used, for example, when repairing rails of railway tracks.
      Welded rail ends are installed into the split mold with formation of the welding gap between edges thereof. The reaction crucible with the additional container, wherein filler metal having predetermined chemical composition is disposed, is installed above the mold. Said container is preheated up to the temperature of 100-700°C, after which the crucible is loaded with aluminothermic mixture, rail ends and split mold are heated, and aluminothermic mixture is ignited. As a result of exothermic reaction of aluminothermic mixture, the container with the melted filler metal is heated, after which it is fed through the drain neck at the container bottom to the mold, where it fills the welding gap. Filler material is cured until hardening and weld formation, after which the weld and heat-affected zone are initially cooled with a compressed air jet down to the temperature of 250-300°C, and then cooled in the air, and the weld top part is removed from the welded rail head. The ratio between weight G1 of filler metal in the additional container and weight G2 of aluminothermic mixture in the crucible is selected within the range of G1/G2= 0.1-0.6, whereas metal and slag are removed from the reaction crucible to the receptacle after welding. If necessary, it is possible to add powders or nanopowders of carbides, carbonitrides or nitrides of transition metals to filler metal.
      Use of this invention allows achieving high quality of the rail weld and heat-affected zone, which results in enhancement of stress-related characteristics of weld metal and high performance characteristics thereof. 2 independent and 5 dependent claims, 3 drawings.
    • 本发明涉及焊接领域并且可以用于例如修理铁路轨道的轨道时。 将焊接的轨道端部安装到分开的模具中,在其边缘之间形成焊接间隙。 具有附加容器的反应坩埚安装在模具的上方,其中设置有具有预定化学组成的填充金属。 将所述容器预热至100-700℃的温度,然后将坩埚装载铝热混合物,加热轨道末端和分开的模具,并点燃铝热混合物。 由于铝热反应混合物的放热反应,加热熔化了的填充金属的容器,然后将其通过容器底部的排放颈部送入模具,在模具中填充焊接间隙。 填充材料被固化直到硬化和焊接形成,然后焊接和热影响区域首先用压缩空气喷射冷却到250-300℃的温度,然后在空气中冷却,焊接顶部 从焊接的导轨头部移除。 附加容器中填充金属的重量G1与坩埚中铝热混合物的重量G2之间的比率选择在G1 / G2 = 0.1-0.6的范围内,而在焊接之后将金属和炉渣从反应坩埚移出到容器 。 如有必要,可以将过渡金属的碳化物,碳氮化物或氮化物的粉末或纳米粉末添加到填充金属中。 使用本发明可以实现钢轨焊接和热影响区的高质量,这导致焊接金属的应力相关特性的提高和其高性能特性。 2个独立索赔和5个独立索赔,3个图纸。
    • 57. 发明公开
    • IGNITION DEVICE FOR EXOTHERMIC WELDING, EXOTHERMIC WELDING MOULD FOR THE IGNITION DEVICE, AND EXOTHERMIC WELDING APPARATUS COMPRISING THE MOULD AND THE DEVICE
    • 点火装置用于焊接放热与窗体及点火装置放热焊接和设备
    • EP2829351A1
    • 2015-01-28
    • EP13721977.0
    • 2013-03-19
    • Aplicaciones Tecnologicas, S.A.
    • POMAR GARCIA, CarlosPOMAR PEDREDO, Veronica
    • B23K23/00F27B14/08F42B3/10
    • B23K23/00B23K37/00B23K37/04B23K37/06F42B3/10
    • The present invention relates to an ignition device for exothermic welding comprising an electrically conductive metal bushing (1) that can house a pellet of a first welding material (4) in electrical contact with the inner wall of an inner chamber (1c) of the bushing (1), provided with an electrically insulating cap (2) and a bottom base (1b) with an opening (1d) through which the first welding material (4) falls in an incandescent state onto a second welding material (4a) arranged in a weld mold (7) when an exothermic reaction has been triggered in the first welding material (4); an electrode (5) that goes through the cap (2) of the metal bushing (1) and comprises a top contact (5a) connectable to a power output (24) of a voltage generator and a bottom contact in the form of a filament (5b) that can be in electrical contact with the pellet of the first welding material (4), the filament (5b) being made of a material having a melting temperature greater than the ignition temperature of the welding material (4); as well as a contact-assuring element (3) which is guided into the inner chamber (1c) between the bottom base (1b) and the pellet of the first welding material (4).
    • 本发明涉及到在点火装置为放热焊接包含导电金属衬套(1)的确实可以容纳在与所述衬套的内室(1C)的内壁电接触的第一焊接材料(4)的颗粒 (1),在电设有绝缘帽(2)和底部基座(1B),在开口(1D),通过该第一焊接材料(4)如果在一个白炽状态走上在设置在第二焊接材料(4a)的 焊接模具(7)当放热反应已经在第一焊接材料(4)被触发; 到电极(5)那样穿过金属套管(1)的盖(2),并且包括一个顶部接触(5A),可连接到一个电压发生器的功率输出(24)和在细丝的形式的底部接触 (5b)中做了可以与第一焊接材料的颗粒(4),灯丝电接触(图5b)由熔融温度比所述焊接材料(4)的点火温度的材料制成; 以及一个接触保证元件(3),所有这些被引导到该底座(1b)和所述第一焊接材料(4)的颗粒之间的内室(1C)。
    • 58. 发明公开
    • APPARATUS AND METHOD OF THERMITE WELDING OF RAILWAY LINES
    • 铁路线热熔焊接装置和方法
    • EP2790868A2
    • 2014-10-22
    • EP12881412.6
    • 2012-12-13
    • Jury, Brent Felix
    • Jury, Brent Felix
    • B23K23/00
    • B23K23/00B23K2201/26E01B29/44E01B29/46
    • This invention relates to a thermite welding process involving vibration and a casting mould for use in the thermite welding of a railway line, the mould including at least two sections to form a rail cavity profile about the area of the end of sections of railway line to be welded or joined, the cavity being of a profile and size of the railway line being welded, and a means to retain the mould together, the mould having at least one riser vent hole on either side of the rail cavity profile, with each said riser vent hole rising from the foot of the profile cavity to an entry trough for receiving casting mix, and wherein a crucible core is adapted to be fitted to the top of the mould above the entry trough so as to allow, in use, casting mix to drop into the mould when the desired temperature has been reached.
    • 本发明涉及一种涉及振动的铝热焊接工艺和一种用于铁路线铝热焊接的铸模,该模具包括至少两个部分以形成围绕铁路线至 被焊接或接合,所述空腔具有被焊接的铁路线的轮廓和尺寸,以及将所述模具保持在一起的装置,所述模具在所述轨道空腔轮廓的任一侧上具有至少一个立管通风孔,每个所述 立管通风孔从型材腔的底部上升到用于接收铸造混合物的入口槽,并且其中坩埚芯适于在入口槽上方装配到模具的顶部,以便允许在使用中铸造混合物 在达到所需温度时落入模具中。
    • 59. 发明公开
    • Verfahren zur Herstellung verschleißfester Wirkflächen von miteinander in Wirkverbindung stehenden metallischen Bauteilen
    • 一种用于在可操作地连接的金属部件产生彼此的耐磨工作表面处理
    • EP2786832A2
    • 2014-10-08
    • EP14001044.8
    • 2014-03-21
    • FEW Fahrzeug- und Entwicklungswerk Blankenburg GmbH
    • Becker, Dietmar
    • B23K23/00
    • B23K23/00B22D19/00B22D19/08B23K20/165B23P15/18B61K7/10C23C26/02
    • Die Erfindung geht aus von einem Verfahren zur Herstellung verschleißfester Wirkflächen von miteinander in Wirkverbindung stehenden metallischen Bauteilen, bei denen die Wirkflächen aus einem Werkstoff bestehen, der eine höhere Festigkeit aufweist als das Grundmaterial, aus dem die Bauteile bestehen, wobei das Material mit der höheren Festigkeit durch ein stoffschlüssiges Verfahren auf das Grundmaterial aufgebracht wird.
      Erfindungsgemäß werden die miteinander in Wirkverbindung stehenden Bauteile (1) mit ihren Wirkflächen auf Abstand zueinander positioniert, der durch die Beabstandung entstandene Zwischenraum (2) zumindest beidseitig mittels thermisch stabiler Begrenzungen eingehaust und mit einem flüssigen höherfesten Material ausgegossen. Nach dem Erkalten des höherfesten Materials werden die nunmehr fest miteinander verbundenen Bauteile (1) im Bereich des eingegossenen höherfesten Materials getrennt. In die auf diese Weise entstandenen neuen Stirnflächen (7) der Bauteile (1) wird eine gewünschte Form eingearbeitet.
      Dadurch lassen sich kostengünstig sehr dicke verschleißfeste Schichten an zwei Bauteilen gleichzeitg herstellen.
    • 本发明涉及一种用于制造耐磨工作表面彼此是在其中工作表面由具有比基本材料更高的强度从该部件的材料制成的操作性连接金属部件的方法,其特征在于,具有较高强度的材料 通过在基体材料的整体过程被应用。 根据本发明一起可操作连接组件(1)被定位为它们的活性表面以一定距离彼此,至少在两侧通过的热稳定极限手段包围并且由间隔间隙(2)用液体高强度材料倒入所得。 高强度材料的冷却后,将现在牢固地连接在一起的部件(1)在较高强度的材料的铸件的区域是分开的。 在组件的如此形成的新的端面(7)(1)被结合所希望的形状。 该成本上两个部件很厚的耐磨涂层,可同时制造。