Flexible minimum energy utlilisation electric arc furnace system and processes for making steel products.
    2.
    发明公开
    Flexible minimum energy utlilisation electric arc furnace system and processes for making steel products. 审中-公开
    以最少的能源消耗灵活的电弧炉系统以及用于生产钢产品的方法

    公开(公告)号:EP2527476A1

    公开(公告)日:2012-11-28

    申请号:EP12275038.3

    申请日:2012-04-05

    摘要: A combined arc furnace, ladle metallurgical furnace and vacuum degassing system having the flexibility to produce at least non-vacuum arc remelt, vacuum arc remelt, vacuum oxygen decarburised non-vacuum arc remelt, and vacuum oxygen decarburised vacuum arc remelt steels from one off to continuous casting end uses in steady state or randomised order which utilises only a minimum of energy attributable to preheating hot metal contacting components of the system followed by heat loss reduction of the components and use of a carryover heel in the arc furnace, in which the throughput of the system is limited solely by the melting capacity of the arc furnace.

    摘要翻译: 一种组合电弧炉具有,钢包冶金炉和真空脱气系统的灵活性,以产生至少非真空电弧重熔,真空电弧重熔,真空氧气脱碳非真空电弧重熔,并在真空氧气脱碳真空电弧重熔钢从一个关闭以 连续铸造的最终用途在稳定状态或随机顺序仅最小能量的属性能够预热热金属接触其次组分的减少的热损失和使用结转脚跟的电弧炉的系统的部件,这utilisés其中吞吐量 该系统是由电弧炉的熔炼能力来限制。

    High impact and thermal shock resistant die steel, dies, die blocks and method of manufacture therefor
    4.
    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:

      SYSTEMS AND METHODS FOR CONTROLLING A VACUUM ARC REMELTING FURNACE BASED ON POWER INPUT
      7.
      发明公开
      SYSTEMS AND METHODS FOR CONTROLLING A VACUUM ARC REMELTING FURNACE BASED ON POWER INPUT 审中-公开
      用于基于电力输入控制真空炉重熔炉的系统和方法

      公开(公告)号:EP3315889A1

      公开(公告)日:2018-05-02

      申请号:EP17167648.9

      申请日:2017-04-21

      发明人: UNDERYS, Algirdas

      摘要: A control system for a vacuum arc remelting (VAR) process for a metal includes a direct current (DC) power source, a ram drive, voltage drip short sensor, and a controller, which includes a processor. The drip short sensor may be configured to measure a drip short frequency of the electric arc over a period of time. The controller is configured to determine a real time arc gap length between the electrode tip and the melt pool based on a correlation between the drip short frequency and arc gap length. The controller is further configured to control power input to the electrode by the DC power supply by determining an input power level to input to the electrode based on the real time arc gap length, the input power level configured to generate a desired arc gap length, by the DC power supply, at the input power level.

      摘要翻译: 用于金属的真空电弧重熔(VAR)过程的控制系统包括直流(DC)电源,冲压驱动器,电压滴注短传感器和包括处理器的控制器。 滴漏短传感器可以被配置成在一段时间内测量电弧的滴落短频。 控制器被配置成基于滴水短频和弧隙长度之间的相关性来确定电极尖端和熔池之间的实时弧隙长度。 所述控制器还被配置为通过基于所述实时弧隙长度确定输入到所述电极的输入功率水平来控制由所述DC电源输入到所述电极的功率,所述输入功率水平被配置为产生期望的弧隙长度, 由DC电源以输入功率电平。

      Die casting steel and method for manufacture
      9.
      发明公开
      Die casting steel and method for manufacture 有权
      StahlfürGiessformen und Verfahren zur Herstellung

      公开(公告)号:EP0955388A1

      公开(公告)日:1999-11-10

      申请号:EP99303136.8

      申请日:1999-04-22

      IPC分类号: C22C38/22 C22C38/24 C21C7/10

      摘要: A die casting die and a Cr-Mo-V steel therefore having an ultimate strength of 190,000 psi, a yield strength of 160,000, a tempering response of 400 BHN at a tempering temperature of 1150°F and final gas contents of N-70 ppm, 0-30 ppm and H - about 1.0 ppm following a double vacuum melting process which includes vacuum arc degassing and vacuum arc remelt followed by annealing and heating in two stages to 1885F, soaking, rapid quenching, tempering twice and stress tempering.

      摘要翻译: 因此,铸造模具和Cr-Mo-V钢具有极限强度为190,000psi,屈服强度为16万,回火温度为1150°F时的回火响应为400 BHN,最终气体含量为N-70ppm ,0-30ppm,H - 约1.0ppm,其中包括真空电弧脱气和真空电弧重熔,然后退火和加热两个阶段至1885°F,浸泡,快速淬火,回火两次和应力回火。