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    METHOD FOR MANUFACTURING MECHANICAL COMPONENTS MADE OF COMPACTED GRAPHITE IRON OR GRAY CAST IRON
    1.
    发明公开
    METHOD FOR MANUFACTURING MECHANICAL COMPONENTS MADE OF COMPACTED GRAPHITE IRON OR GRAY CAST IRON 审中-公开

    公开(公告)号：EP3325674A1

    公开(公告)日：2018-05-30

    申请号：EP16750643.5

    申请日：2016-07-21

    申请人： Zanardi Fonderie S.p.A.

    发明人： ZANARDI, Franco ,  VETTORE, Federico

    IPC分类号： C21D5/00 ,  C22C37/00

    CPC分类号： C21D5/00 ,  C21D1/20 ,  C21D2211/004 ,  C21D2211/005 ,  C21D2211/009

    摘要： A method for manufacturing mechanical components made of compacted graphite iron or gray cast iron, comprising the following steps: – providing a casting of a mechanical component made of gray cast iron or compacted graphite iron having at least 50% of ferritic structure and having a carbon content comprised between 2.5% and 4.0% and a silicon content comprised between 1.0% and 4.0%; – bringing said casting to a temperature that is higher than the lower austenitizing temperature (Ac1) and lower than the upper austenitizing temperature (Ac3) for a time required to obtain an at least partially austenitic structure; – performing a thermal treatment for isothermal hardening at a temperature comprised between 230°C and 400°C in order to obtain a matrix that has a substantially pearlitic-ferritic or perferritic structure.

    DRUCKBEGRENZUNGSVENTIL
    3.
    发明公开
    DRUCKBEGRENZUNGSVENTIL 审中-公开

    公开(公告)号：EP3234426A1

    公开(公告)日：2017-10-25

    申请号：EP15816434.3

    申请日：2015-12-16

    申请人： Robert Bosch GmbH

    发明人： MUEHLHOFF, Holger ,  SCHLOEDER, Robert ,  BORN, Dieter ,  SCHIEDER, Wasilij

    IPC分类号： F16K27/00 ,  C21D5/00

    CPC分类号： F16K27/0209 ,  B23P15/002 ,  C21D1/06 ,  C21D5/00 ,  F16K15/028 ,  F16K27/00

    摘要： The invention relates to a pressure-limiting valve, comprising a housing (2) and a pressure adjustment device (6) provided therein. Furthermore, the pressure-limiting valve contains a valve seat (20), which is arranged in the housing and which can be closed by means of a spring-loaded closing element (14) of the pressure adjustment device. The housing is composed of cast iron having spherical graphite, wherein the housing is surface-hardened at least in a region of the valve seat.

    摘要翻译： 本发明涉及一种限压阀，其包括壳体（2）和设置在壳体（2）中的压力调节装置（6）。 此外，限压阀包括阀座（20），该阀座设置在壳体中并且可以通过压力调节装置的弹簧加载的关闭元件（14）来关闭。 壳体由具有球形石墨的铸铁构成，其中壳体至少在阀座的区域中被表面硬化。

    CALIBER-CONTAINING CENTRIFUGALLY CAST ROLL FOR HOT ROLLING
    5.
    发明公开
    CALIBER-CONTAINING CENTRIFUGALLY CAST ROLL FOR HOT ROLLING 审中-公开
    KALIBERHALTIGE ZENTRIFUGAL GEGOSSENE WALZE ZUM WARMWALZEN

    公开(公告)号：EP3135392A4

    公开(公告)日：2017-05-24

    申请号：EP15810994

    申请日：2015-06-26

    申请人： JFE STEEL CORP

    发明人： ITOH YOICHI ,  ICHINO KENJI ,  MOCHIDA TETSUO

    IPC分类号： B21B27/00 ,  B21B27/02 ,  B22D13/02 ,  C21D5/00 ,  C22C37/00

    CPC分类号： B21B27/02 ,  B21B27/024 ,  B21B2267/26 ,  B22D13/02 ,  B22D25/02 ,  C21D5/00 ,  C22C37/00 ,  C22C37/04 ,  C22C37/06 ,  C22C37/10 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/32 ,  C22C38/36

    摘要： Provided is a centrifugal cast caliber roll for a hot rolling mill having excellent wear resistance, excellent fatigue resistance, and excellent slip resistance. The roll has a chemical composition containing, by mass%, C: 1.8% or more and 3.0% or less, Si: 0.2% or more and 1.0% or less, Mn: 0.2% or more and 1.5% or less, Cr: 5% or more and 9% or less, Mo: 4.0% or more and 7.0% or less, V: 4.0% or more and 7.0% or less, Nb: 0.5% or more and 2.0% or less, and the balance being Fe and inevitable impurities, in which the relationship 0.6 ‰¤ (C - 0.24V - 0.13Nb) ‰¤1.4 (where, C, V, and Nb each denote the content (mass%) of the corresponding chemical element) is satisfied, and has a surface hardness of Hs 67 or higher and Hs 76 or lower in terms of shore hardness. With this, it is possible to obtain a caliber roll with which it is possible not only to inhibit wear and fatigue but also to prevent slip even in a harsh hot rolling environment in which a high rolling load is applied. In addition, there is an effect of improving the productivity of steel materials (such as a steel pipe), significantly improving the quality of products, and improving roll life.

    摘要翻译： 本发明提供一种耐磨损性优异，耐疲劳性优异，耐滑性优异的热轧机用离心铸造口径辊。 所述辊具有以质量％计含有C：1.8％以上且3.0％以下，Si：0.2％以上且1.0％以下，Mn：0.2％以上且1.5％以下，Cr： 5％以上且9％以下，Mo：4.0％以上且7.0％以下，V：4.0％以上且7.0％以下，Nb：0.5％以上且2.0％以下，余量为 Fe和不可避免的杂质，其中满足0.6≤（C-0.24V-0.13Nb）≤1.4（其中，C，V和Nb分别表示相应化学元素的含量（质量％）） 以肖氏硬度计，表面硬度Hs 67以上，Hs 76以下。 由此，能够获得即使在施加高轧制负荷的苛刻的热轧环境下也能够抑制磨损和疲劳，并且防止滑动的口径辊。 另外，具有提高钢材（钢管等）的生产率，大幅提高产品品质，提高辊寿命的效果。

    IMPROVED DISC BRAKE ROTOR FOR HEAVY-DUTY VEHICLES
    6.
    发明公开
    IMPROVED DISC BRAKE ROTOR FOR HEAVY-DUTY VEHICLES 审中-公开
    VERBESSERTER BREMSSCHEIBENROTORFÜRSCHWERLASTFAHRZEUGE

    公开(公告)号：EP3022457A4

    公开(公告)日：2017-04-26

    申请号：EP14826183

    申请日：2014-07-16

    申请人： HENDRICKSON USA LLC

    发明人： WHITE JAY D ,  MORRIS JEFFREY S

    IPC分类号： F16D65/00 ,  C21D5/00 ,  C22C37/10 ,  C22C38/02 ,  F16D65/12 ,  F16D65/78 ,  F16D65/84 ,  F16D65/847

    CPC分类号： F16D65/128 ,  C21D5/00 ,  C22C37/10 ,  C22C38/02 ,  F16D65/12 ,  F16D65/847 ,  F16D2065/132 ,  F16D2065/1328 ,  F16D2065/1364 ,  F16D2065/1376 ,  F16D2065/1392 ,  F16D2066/003

    摘要： The invention is directed to a rotor of a disc brake system for heavy-duty vehicles. The rotor includes an inboard disc and an outboard disc. The outboard disc is spaced apart from the inboard disc, and a plurality of pins extends between and rigidly connects the inboard disc and the outboard disc. A sleeve includes an inboard end and an outboard end, and is disposed inside an inner perimeter of the outboard disc. A connecting member extends between and rigidly connects an inner perimeter of the inboard disc to the inboard end of the sleeve. The inboard disc attachment to the sleeve and the interconnecting pins cooperate to improve the resistance of the rotor to thermal stress created during braking, thereby increasing the performance and the life of the rotor.

    摘要翻译： 本发明涉及用于重型车辆的盘式制动系统的转子。 转子包括一个内侧盘和一个外侧盘。 外侧盘与内侧盘间隔开，并且多个销在内侧盘和外侧盘之间延伸并刚性连接。 套筒包括内侧端和外侧端，并且布置在外侧盘的内周边内。 连接构件在内侧盘的内周边与套筒的内侧端之间延伸并刚性连接。 与套筒的内侧圆盘附件和互连销相配合以改善转子对制动期间产生的热应力的抵抗力，由此增加转子的性能和寿命。