ALLOYED GREY IRON HAVING HIGH THERMAL FATIGUE RESISTANCE AND GOOD MACHINABILITY
    92.
    发明公开
    ALLOYED GREY IRON HAVING HIGH THERMAL FATIGUE RESISTANCE AND GOOD MACHINABILITY 失效
    具有高电阻合金铸铁接触高温疲劳和良好的切削加工

    公开(公告)号:EP0746635A4

    公开(公告)日:1995-07-19

    申请号:EP93918320

    申请日:1993-07-23

    发明人: BEGIN ROGER E

    IPC分类号: C22C37/10

    CPC分类号: C22C37/10

    摘要: A moderately high carbon alloy grey iron having a carbon content ranging from 3.4 % to 3.6 % by weight and primary alloying addition of the combination of molybdenum and copper in amounts by weight ranging from 0.25 % to 0.40 % and from about 0.30 % to 0.60 %, respectively for achieving thermal fatigue resistance and good machinability without adversely affecting chill depth, and with a relatively low silicon content of about 1.80 % to 2.10 %. The alloyed grey iron having the characteristics of: (i) a microstructure of a fully pearlitic matrix having a refined eutectic cell size, and graphite present in substantially uniform distribution and random orientation, the graphite having a flake size of predominantly 5-7 ASTM; (ii) a tensile strength of at least 40,000 psi in the desired section size; (iii) a hardness of about 179 to about 229 Brinell.

    Zylinderlaufbuchse für eine Brennkraftmaschine
    97.
    发明公开
    Zylinderlaufbuchse für eine Brennkraftmaschine 失效
    Zylinderlaufbuchsefüreine Brennkraftmaschine。

    公开(公告)号:EP0525540A1

    公开(公告)日:1993-02-03

    申请号:EP92112215.6

    申请日:1992-07-17

    IPC分类号: C22C37/04 F02F1/08

    摘要: Bei einer Zylinderlaufbuchse für eine Brennkraftmaschine, insbesondere für einen Großdieselmotor, die aus perlitischem Gußeisen mit Kugelgraphit als Basislegierung gegossen ist, weist das Gefüge des Gußeisens auch klar eingegrenzte, netzförmig gleichmäßig verteilte Zementit-/Steaditanteile auf, die einen Flächenanteil von 3 bis 8 % einnehmen. Der Basislegierung sind zusätzlich Bor mit 0,01 bis 0,03 und/oder Phosphor mit 0,2 bis 0,4 und - bei Bedarf - Vanadium mit 0,1 bis 0,3 Gewichtsprozent als Legierungselemente beigegeben.

    摘要翻译: 在用于内燃机,特别是用于大型柴油发动机的气缸套中,以球墨铸铁作为基本合金铸造的铸铁,铸铁的微结构也包括明确界定的渗碳体/稳定比例, 像网络一样分布,覆盖面积分数从3%到8%。 碱性合金另外与其相混合,其含量为0.01至0.03和/或磷,0.2至0.4,如果需要,以0.1至0.3重量%的钒为合金元素。

    Method and device for treatment of metal baths by means of a material having a high gas or vapour potential
    98.
    发明公开
    Method and device for treatment of metal baths by means of a material having a high gas or vapour potential 失效
    用于通过leichtverdampfbaren材料的装置的处理的金属浴的方法和装置。

    公开(公告)号:EP0512255A1

    公开(公告)日:1992-11-11

    申请号:EP92105764.2

    申请日:1992-04-03

    申请人: TUBI GHISA S.p.A.

    发明人: Bennati, Ettore

    IPC分类号: C21C1/10 C22C37/04 C22B9/05

    CPC分类号: C21C1/10

    摘要: Device and method for treatment of metallic baths (11) by means of at least one treating material (12) having high potential development of gases or vapours when heated by the metallic bath (11), comprising a ladle (14) having a pouring spout (20) and a closing lid (24). In the ladle's bottom (15) is formed a closed chamber (13), to be enclosed by the metallic bath (11) poured into the ladle (14), apt to receive the treatment material (12) and to hold the vapours or gases which develop.
    Said chamber (13) is provided with at least one release conduit (13c) rising to end within the ladle (14), and release conduit (13c) is closed by a plug (13d) with controlled opening.

    摘要翻译: 由至少一个处理具有气体或蒸气的高电势显影材料(12)的手段设备以及用于治疗的金属浴(11)的方法当通过具有倾倒咀金属浴(11),包括一个钢包(14)中加热 (20)和一个封闭盖(24)。 在钢包的底部(15)形成一个封闭的腔室(13),以通过所述金属浴(11)被封闭倒入浇包(14),适于容纳所述处理材料(12)和保持蒸气或气体 其发展。 所述腔室(13)设置有至少一个释放管道(13c)中上升到浇包(14)内结束,并释放导管(13C)是由插头(13D)具有受控开口封闭。