High impact and thermal shock resistant die steel, dies, die blocks and method of manufacture therefor
    1.
    发明公开
    High impact and thermal shock resistant die steel, dies, die blocks and method of manufacture therefor 有权
    模具钢具有高的冲击强度和耐热冲击性,模具,冲压块和制造过程

    公开(公告)号:EP1088906A1

    公开(公告)日:2001-04-04

    申请号:EP99307668.6

    申请日:1999-09-29

    CPC分类号: C22C38/42 C22C38/44

    摘要: A steel and tool made therefrom which in a tempered condition of 388 BHN or softer has high strength, high wear resistance together with excellent toughness in the range of 15% elongation and 35 ft-Ibs. charpy and having the following composition:







    C
    .33 - .39

    Mn
    .50 - .70

    P
    .025 max.

    S
    .025 max.

    Si
    .40 - .60

    Ni
    1.05 - 1.35

    Cr
    1.33 - 1.68

    Mo
    .40 - .60

    Cu
    .60 - .90

    Al
    .010 - .030

    Fe
    balance

    摘要翻译: 的钢和刀具从其中在388 BHN的回火条件下或由有柔软具有高强度,高耐磨损性,在15%伸长率和35英尺 - 磅的范围内具有优异的韧性在一起。 夏比并且具有下列组成:

      Tri-level method and apparatus for post melting treatment of molten steel
      3.
      发明公开
      Tri-level method and apparatus for post melting treatment of molten steel 失效
      用于熔炼钢的熔融处理的三水平方法和装置

      公开(公告)号:EP0366293A3

      公开(公告)日:1990-06-20

      申请号:EP89310263.2

      申请日:1989-10-06

      IPC分类号: C21C7/10 C21C7/00

      CPC分类号: C21C7/10 C21C7/0075

      摘要: In a method of decreasing the content of undesired gasses in molten steel the steps of
      isolating molten steel containing undesired gasses from ambient atmosphere whereby a non-atmospheric region is established above the molten steel,
      passing a purging agent upwardly through the molten steel from a location beneath the surface which is exposed to the non-atmospheric region,
      diverting gasses in the region above the molten steel to air ejector means at a rate sufficient to create a sub-atmospheric pressure in the non-atmospheric region above the molten steel, and
      discharging the gasses drawn from the region above the molten steel, and additional gasses which may be added to the air ejector means, from the air ejector means at a temperature which is within the temperature tolerance range of a conventional baghouse.

      Tri-level method and apparatus for post melting treatment of molten steel
      5.
      发明公开
      Tri-level method and apparatus for post melting treatment of molten steel 失效
      Dreistufenverfahren und Vorrichtung zur Nachbehandlung von geschmolzenem Stahl。

      公开(公告)号:EP0366293A2

      公开(公告)日:1990-05-02

      申请号:EP89310263.2

      申请日:1989-10-06

      IPC分类号: C21C7/10 C21C7/00

      CPC分类号: C21C7/10 C21C7/0075

      摘要: In a method of decreasing the content of undesired gasses in molten steel the steps of
      isolating molten steel containing undesired gasses from ambient atmosphere whereby a non-atmospheric region is established above the molten steel,
      passing a purging agent upwardly through the molten steel from a location beneath the surface which is exposed to the non-atmospheric region,
      diverting gasses in the region above the molten steel to air ejector means at a rate sufficient to create a sub-atmospheric pressure in the non-atmospheric region above the molten steel, and
      discharging the gasses drawn from the region above the molten steel, and additional gasses which may be added to the air ejector means, from the air ejector means at a temperature which is within the temperature tolerance range of a conventional baghouse.

      摘要翻译: 在减少钢水中不希望的气体含量的方法中,将含有不需要的气体的钢水与环境气氛隔离,从而在钢水上方建立非大气区域,使清洗剂向上通过钢水从一个位置 在暴露于非大气区域的表面下方,以足以在钢水上方的非大气区域产生次大气压力的速率将钢水上方的气体转移到空气喷射装置,并且排出 在常规袋式屋顶的温度范围内的温度下,从空气喷射器装置将从钢水上方区域抽取的气体和可添加到空气喷射装置的附加气体。