METHOD FOR PRODUCING A STEEL SHAPED BODY
    42.
    发明申请
    METHOD FOR PRODUCING A STEEL SHAPED BODY 审中-公开
    生产钢材形状的方法

    公开(公告)号:US20160136729A1

    公开(公告)日:2016-05-19

    申请号:US14901203

    申请日:2014-06-20

    Inventor: Heike Langner

    Abstract: The invention relates to a method for producing a steel shaped body, particularly, for example, a component for common rail fuel injection valves, comprising the method steps of: forming a powderous composition based on iron oxide, from oxide particles, with the addition of carbon and micro-alloy elements so as to adjust a bainitic microstructure; heating the powderous composition to a sinter temperature; reducing the shaped body obtained by sintering; and cooling the sintered shaped body to room temperature. As a result, from the three essential state phases in a state diagram (10), specifically the ferrite-perlite state range (11), the bainite state range (12) and the martensite state range (13), preferably the bainitic state phase is formed in a medium temperature range by the ferrite-perlite state range (11) being shifted to longer cooling periods and the martensite state range (13) being shifted to lower temperatures.

    Abstract translation: 本发明涉及一种用于制造钢成形体的方法,特别是例如共轨燃料喷射阀的部件,包括以下步骤:从氧化物颗粒形成基于氧化铁的粉状组合物,添加 碳和微合金元素,以调节贝氏体微观结构; 将粉末组合物加热至烧结温度; 减少通过烧结获得的成形体; 并将烧结的成形体冷却至室温。 结果,在状态图(10)中的三个基本状态阶段,特别是铁素体 - 珍珠岩状态范围(11),贝氏体状态范围(12)和马氏体状态范围(13)中,优选贝氏体状态 通过铁素体 - 珍珠岩状态范围(11)在中等温度范围内形成,转变到更长的冷却时间,马氏体状态范围(13)转移到较低的温度。

    High strength hard alloy and method of preparing the same
    44.
    发明授权
    High strength hard alloy and method of preparing the same 失效
    高强度硬质合金及其制备方法

    公开(公告)号:US08128867B2

    公开(公告)日:2012-03-06

    申请号:US12983561

    申请日:2011-01-03

    Abstract: A method for producing a cemented carbide material includes producing an M3C type double carbide (wherein M comprises M1 and M2; M1 represents one or more elements selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, and W; and M2 represents one or more elements selected from the group consisting of Fe, Co and Ni) as a main component of the surface portion; reducing heat treating the compact at a vacuum atmosphere; carburizing the resulting WC—Co compact at a temperature of 800 to 1100° C.; subjecting the carburized compact to liquid phase sintering at a temperature of more than 1350° C. to form a sintered body; and coating a surface layer of the sintered body with a compound containing boron and/or silicon and subjecting the coated sintered body to a diffusion heat treatment at a temperature within a range from 1200 to 1350° C.

    Abstract translation: 制造硬质合金材料的方法包括制造M3C型双碳化物(其中M包括M1和M2; M1表示选自Ti,Zr,Hf,V,Nb,Ta,Cr,Mo中的一种或多种元素 和W; M2表示选自Fe,Co和Ni中的一种或多种元素)作为表面部分的主要成分; 在真空气氛下还原热处理压块; 在800〜1100℃的温度下对得到的WC-Co压坯进行渗碳。 使渗碳压实体在大于1350℃的温度下进行液相烧结以形成烧结体; 并用含有硼和/或硅的化合物涂覆烧结体的表面层,并使涂覆的烧结体在1200〜1350℃的范围内进行扩散热处理。

    High strength hard alloy and method of preparing the same
    45.
    发明授权
    High strength hard alloy and method of preparing the same 失效
    高强度硬质合金及其制备方法

    公开(公告)号:US07887747B2

    公开(公告)日:2011-02-15

    申请号:US11518519

    申请日:2006-09-11

    Abstract: The present invention provides a WC—Co system (the WC—Co system in the present invention means that it comprises not only hard grains composed mainly of WC and iron group metal powder containing Co, but also at least one kind selected from carbide, nitride, carbonitride and boride of elements in Groups IVa, Va and VIa of the Periodic Table, excluding WC, as hard grains) cemented carbide having high strength and high toughness which is excellent in wear resistance, toughness, chipping resistance and thermal crack resistance. A WC—Co system compact containing an M12C to M3C type double carbide (M represents one or more kinds selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W, and one or more kinds selected from the group consisting of Fe, Co and Ni) as a main component of the surface layer portion is subjected to a carburization treatment, and then subjected to liquid phase sintering so as to adjust the mean grain size of the surface layer WC depending on a liquid crystal sintering temperature as an indicator.

    Abstract translation: 本发明提供一种WC-Co体系(本发明中的WC-Co系不仅包含由WC组成的硬质粒子和含有Co的铁族金属粉末,还包含选自碳化物,氮化物 ,元素周期表第Ⅳa,Ⅴa和Ⅵa族元素的碳氮化物和硼化物,不含WC,作为硬晶粒)具有优异的耐磨性,耐韧性,耐崩裂性和耐热裂纹性的高强度和高韧性的硬质合金。 含有M12C〜M3C型双碳化物的WC-Co系压模(M表示选自Ti,Zr,Hf,V,Nb,Ta,Cr,Mo和W中的一种或多种,​​以及一种或多种 选自由Fe,Co和Ni组成的组分)作为表面层部分的主要成分进行渗碳处理,然后进行液相烧结,以调整表面层WC的平均晶粒尺寸取决于 以液晶烧结温度为指标。

    METHOD FOR MANUFACTURING OPEN CELL MICROPOROUS METAL
    48.
    发明申请
    METHOD FOR MANUFACTURING OPEN CELL MICROPOROUS METAL 审中-公开
    制造开孔微孔金属的方法

    公开(公告)号:US20080118385A1

    公开(公告)日:2008-05-22

    申请号:US11675574

    申请日:2007-02-15

    Applicant: Hak Sik JOO

    Inventor: Hak Sik JOO

    Abstract: Disclosed is a method of manufacturing an open cell porous metal, including the steps of mixing a target metal with a low melting point material, having a melting point lower than that of the target metal, to form a mixture; forming a compact by pressurizing the mixture; forming a sintered compact, which open cell micropores are formed, by sintering and polishing the compact; and plating the sintered compact. The present invention has advantages in that pores are easily formed, and the form of the pores can be variously adjusted. Further, the open cell porous metal manufactured by the present invention has an advantage in that the open cell porous metal has various effects or characteristics such as durability, sound-absorbing property, heat resistance, electromagnetic wave blocking, high damping property, high strength, ultra-lightweight, fragrance emission, and fragrance retention, and can thus be used as a functional metal for various uses.

    Abstract translation: 本发明公开了一种制造开孔多孔金属的方法,包括将目标金属与熔点低于目标金属的熔点低熔点材料混合以形成混合物的步骤; 通过对混合物加压形成压块; 形成烧结体,通过烧结和抛光压块而形成开孔的微孔; 并对该烧结体进行电镀。 本发明的优点在于容易形成孔,并且可以对孔的形状进行各种调整。 此外,本发明制造的开孔多孔金属具有以下优点:开孔多孔金属具有各种效果或特性,例如耐久性,吸音性,耐热性,电磁波阻隔性,高阻尼性,高强度, 超轻,香味排出和香味保持,因此可用作各种用途的功能性金属。

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