Apparatus for forming porous seamless tubing
    1.
    发明授权
    Apparatus for forming porous seamless tubing 失效
    用于形成多孔无缝管的装置

    公开(公告)号:US3632243A

    公开(公告)日:1972-01-04

    申请号:US3632243D

    申请日:1970-11-04

    发明人: MOTT LAMBERT H

    摘要: A spacer for use with a core rod, a flexible tubular mold disposed about the core rod, means introducing a powder between the core rod and the mold, and means sealing the ends of the tubular mold so that the powder may be compacted on subjecting the mold to fluid pressure, the compacted powder being removed and sintered to form porous seamless tubing; the spacer having a cylindrical outer shell larger in diameter than the inside of the mold, guide means sliding on the core rod and fixed to the shell positioning the shell concentrically about the core rod, the spacer containing at least one longitudinal opening allowing powder to flow therethrough, and handle means extending through the mold between the mold and the core rod so the spacer may be drawn upward through the tubular mold as powder flows through the opening in the spacer to be positioned about the core rod within the mold, the tubular mold on passage of the spacer contracting to hold powder against shifting.

    摘要翻译: 用于芯棒的间隔件,围绕芯棒设置的柔性管状模具,意味着在芯棒和模具之间引入粉末,以及密封管状模具的端部的装置,使得粉末可以在经受 模具到流体压力,去除压实的粉末并烧结以形成多孔无缝管; 所述间隔件具有直径大于所述模具内部的圆柱形外壳,所述导向装置在所述芯棒上滑动并固定到所述壳体,所述壳体围绕所述芯棒同心地定位所述壳体,所述间隔件包含允许粉末流动的至少一个纵向开口 以及通过模具延伸穿过模具和芯棒之间的手柄装置,使得当粉末流过间隔件中的开口以便围绕模具内的芯棒定位时,间隔件可以向上拉出通过管状模具,管状模具 通过间隔件收缩以保持粉末不会偏移。

    Spinnerette head
    2.
    发明授权
    Spinnerette head 失效
    旋转头

    公开(公告)号:US3802821A

    公开(公告)日:1974-04-09

    申请号:US33150673

    申请日:1973-02-12

    发明人: MOTT L

    摘要: A spinnerette head for the extrusion of synthetic polymer fibers incorporates an extended area filter having a base with porous tubular filter elements extending from the base. The base is clamped and sealed between an inlet head and elements including a spinnerette disk containing extrusion apertures so that the tubular filter elements extend into a central cavity in the inlet head. At least the edge of the base plate is unwetted by the polymer and is available to be used to remove the extended area filter when the spinnerette head is disassembled for maintenance purposes.

    Multi-layer spinnerette with head filter
    3.
    发明授权
    Multi-layer spinnerette with head filter 失效
    多层旋转头与过滤器

    公开(公告)号:US3728061A

    公开(公告)日:1973-04-17

    申请号:US15644471

    申请日:1971-06-24

    发明人: MOTT L

    摘要: The central cavity of a spinnerette head assembly for the extrusion of synthetic polymer filters is substantially filled with tubular filters closed at one end and communicating with extrusion orifices, the filter area being presented to inflowing plastic being at least twice the cross-sectional area of the central cavity, the tubular filter elements having at least an outer layer with a lesser degree of filtration and an inner layer with a greater degree of filtration.

    摘要翻译: 用于挤出合成聚合物过滤器的喷丝头组件的中心腔基本上填充有在一端封闭并与挤出孔连通的管状过滤器,过滤区域被呈现为流入塑料至少两倍的横截面积 中心腔,管状过滤器元件具有至少具有较小程度过滤的外层和具有更大程度过滤的内层。

    Spinnerette with head filter
    9.
    发明授权
    Spinnerette with head filter 失效
    旋转过滤器

    公开(公告)号:US3729279A

    公开(公告)日:1973-04-24

    申请号:US3729279D

    申请日:1971-06-24

    发明人: MOTT L

    摘要: The central cavity of a spinnerette head assembly for the extrusion of synthetic polymer fibers is substantially filled by a filter element having a filter disk and upstanding concentric rings extending upward from the disk within the central cavity, the filter area presented to inflowing plastic being at least twice the cross-sectional area of the cavity and the concentric rings occupying at least 45 per cent of the volume of the cavity, the filter element containing concentric circles of closely spaced upward outflow bores extending through the filter disk to the upper portions of the concentric rings.

    摘要翻译: 用于挤出合成聚合物纤维的喷丝头组件的中心腔基本上被具有过滤盘的过滤元件填充,过滤盘和从中心空腔内的盘向上延伸的直立同心环,至少流入塑料的过滤区至少 空腔的横截面面积的两倍,并且同心环占据空腔体积的至少45%,过滤元件包含紧密间隔开的向上流出孔的同心圆,其通过过滤盘延伸到同心的上部 戒指。