METHOD FOR PRODUCING A GREEN COMPACT FROM A POWDERED OR GANULAR MATERIAL
    3.
    发明申请
    METHOD FOR PRODUCING A GREEN COMPACT FROM A POWDERED OR GANULAR MATERIAL 审中-公开
    从粉末或甘油材料生产绿色紧固件的方法

    公开(公告)号:US20160303655A1

    公开(公告)日:2016-10-20

    申请号:US15190565

    申请日:2016-06-23

    IPC分类号: B22F3/03 C04B35/626 B22F3/00

    摘要: A method for producing a green compact from a powdered or granular material is disclosed. An embodiment of the method includes moving a fill shoe, which is filled with powdered or granular material, by an adjusting device from a first park position to a first end position. The fill shoe is moved from the first end position to a second end position over a construction chamber and the construction chamber is filled with the powdered or granular material in the fill shoe in a layer. The fill shoe is moved from the second end position to a second park position after filling the construction chamber with the layer, where the second park position is different from the first park position.

    摘要翻译: 公开了一种从粉末或颗粒材料生产压坯的方法。 该方法的实施例包括通过调节装置将填充有粉末或颗粒材料的填充鞋从第一停放位置移动到第一终止位置。 填充鞋从结构室的第一端部位置移动到第二端部位置,并且施加室在填充鞋中的粉末状或颗粒状材料中填充一层。 在填充施工室之后,填充鞋从第二停止位置移动到第二停放位置,其中第二停泊位置与第一停放位置不同。

    METHODS OF FORMING SINTERED BORON CARBIDE
    8.
    发明申请
    METHODS OF FORMING SINTERED BORON CARBIDE 审中-公开
    烧结碳硼化物的方法

    公开(公告)号:US20110227259A1

    公开(公告)日:2011-09-22

    申请号:US12841474

    申请日:2010-07-22

    IPC分类号: C04B35/645 C04B35/64

    摘要: A method of forming a sintered boron carbide body includes washing boron carbide powder with essentially pure water at an elevated temperature to generate low oxygen boron carbide powder, mixing a sintering aid and a pressing aid with the low oxygen boron carbide powder to form a green mixture, and shaping the green mixture into a green boron carbide body. The method can include mixing titanium carbide powder having an average particle diameter in a range of between about 5 nm and about 100 nm with the low oxygen boron carbide powder. The method can further include sintering the green boron carbide body, and hot isostatic pressing the sintered body, to a density greater than about 98.5% of the theoretical density (TD) of boron carbide. Alternatively, the method can include sintering the shaped boron carbide green body at a temperature greater than about 2,200° C., to thereby form a eutectic liquid solid solution of B4C/SiC, forming a sintered boron carbide body with a density greater than about 98% TD.

    摘要翻译: 形成烧结碳化硼体的方法包括在升高的温度下用基本纯净的水洗涤碳化硼粉末以产生低氧碳化硼粉末,将烧结助剂和压制助剂与低氧碳化硼粉末混合以形成绿色混合物 ,并将绿色混合物成形为绿色碳化硼体。 该方法可以包括将平均粒径在约5nm至约100nm范围内的碳化钛粉末与低氧碳化硼粉末混合。 该方法可以进一步包括将生坯碳化硼体烧结,以及将等温压制烧结体的密度大于碳化硼理论密度(TD)的约98.5%的密度。 或者,该方法可以包括在大于约2200℃的温度下烧结成形碳化硼生坯,从而形成B4C / SiC的共晶液体固溶体,形成密度大于约98的烧结碳化硼体 %TD。

    METHOD OF PREPARING PRESSURELESS SINTERED, HIGHLY DENSE BORON CARBIDE MATERIALS
    9.
    发明申请
    METHOD OF PREPARING PRESSURELESS SINTERED, HIGHLY DENSE BORON CARBIDE MATERIALS 审中-公开
    制备无压烧结的方法,高密度硼硼碳材料

    公开(公告)号:US20110160035A1

    公开(公告)日:2011-06-30

    申请号:US13045356

    申请日:2011-03-10

    IPC分类号: C04B35/563 C04B35/565

    摘要: In a method of preparing a boron carbide material, boron carbide powder is washed with essentially pure water at an elevated temperature to generate washed boron carbide powder. The washed boron carbide powder is combined with a sintering aid. The mixture of the boron carbide powder and the sintering aid is pressed to form a shaped material, and the shaped material is sintered. A sintered boron carbide material comprises a boron carbide component that includes boron carbide, elemental carbon, and not more than about 0.6 wt % of oxygen on the basis of the total weight of the boron carbide component. The sintered boron carbide material has a density of at least about 99% of the theoretical density. Another sintered boron carbide material comprises a boron carbide component that includes boron carbide, silicon carbide, elemental carbon, and not more than about 0.3 wt % oxygen on the basis of the total weight of the boron carbide component, and has a density of at least about 97% of the theoretical density.

    摘要翻译: 在制备碳化硼材料的方法中,碳化硼粉末在高温下用基本上纯的水洗涤以产生洗涤的碳化硼粉末。 将洗涤的碳化硼粉末与烧结助剂组合。 将碳化硼粉末和烧结助剂的混合物压制以形成成形材料,并将成形材料烧结。 烧结碳化硼材料包括碳化硼组分,其包含碳化硼,元素碳,基于碳化硼组分的总重量不超过约0.6重量%的氧。 烧结碳化硼材料的密度至少为理论密度的约99%。 另一种烧结碳化硼材料包括碳化硼组分,其包含碳化硼,碳化硅,元素碳和基于碳化硼组分的总重量不大于约0.3重量%的氧,并且至少具有至少 约97%的理论密度。