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53 条记录 (耗时 0.016 秒)

    Stretch packaging method employing multi-layer film
    51.
    发明授权
    Stretch packaging method employing multi-layer film 失效
    采用多层薄膜的拉伸包装方法

    公开(公告)号：US5296580A

    公开(公告)日：1994-03-22

    申请号：US097921

    申请日：1993-07-28

    申请人： Takashi Matsunaga ,  Keiichi Miura

    发明人： Takashi Matsunaga ,  Keiichi Miura

    IPC分类号： B29C61/06 ,  B29C55/02 ,  B29K23/00 ,  B29K105/02 ,  B29L7/00 ,  B32B27/32 ,  B65D30/02 ,  B65D65/02 ,  B65D71/00 ,  B65D71/08 ,  C08F10/02 ,  C08F210/16 ,  C08J5/18 ,  B65B11/08 ,  C08F210/14

    CPC分类号： B65D71/08 ,  C08F10/02 ,  C08F210/16 ,  Y10T428/269 ,  Y10T428/31913

    摘要： A film for stretch packaging comprising as a substrate a film of a linear low density polyethylene having a melt flow rate (190.degree. C.), as measured by an ASTM-D-1238E method, of 0.3 to 8 g/10 min., a density, as measured by an ASTM-D-1505 method, of 0.900 to 0.918 g/cm.sup.3, a molecular weight distribution (Mw/Mn) of 2 to 6, two or more melting points existing as measured by a differential scanning calorimeter, a maximum melting point Tm.sub.1 of 118.degree. to 125.degree. C. and a ratio of the height Tm.sub.1 H of the peak of the highest melting point Tm.sub.1 to the height Tm.sub.1 H of the melting point Tm.sub.2 adjacent thereto (i.e., Tm.sub.1 H/Tm.sub.2 H), of 1.3 or less.

    摘要翻译： 一种用于拉伸包装的薄膜，其包括通过ASTM-D-1238E方法测量的具有0.3-8g / 10分钟的熔体流动速率（190℃）的线性低密度聚乙烯薄膜作为基底， 通过ASTM-D-1505方法测量的密度为0.900至0.918g / cm 3，分子量分布（M（OVS）w / M（OVS）n）为2至6，存在两个或更多个熔点 通过差示扫描量热计测定的最大熔点Tm1为118-125℃，最高熔点Tm1的峰的高度Tm1H与其相邻的熔点Tm2的高度Tm1H的比（即 ，Tm1H / Tm2H）为1.3以下。

    Steam isolation valve
    52.
    发明授权
    Steam isolation valve 失效
    蒸汽隔离阀

    公开(公告)号：US5280506A

    公开(公告)日：1994-01-18

    申请号：US714237

    申请日：1991-06-12

    申请人： Katsumi Yamada ,  Hiroshi Miyano ,  Noboru Saito ,  Tetsuzo Yamamoto ,  Hideaki Takahashi ,  Takashi Matsunaga ,  Shigeki Arai

    发明人： Katsumi Yamada ,  Hiroshi Miyano ,  Noboru Saito ,  Tetsuzo Yamamoto ,  Hideaki Takahashi ,  Takashi Matsunaga ,  Shigeki Arai

    IPC分类号： F16K1/10 ,  G21D1/02 ,  G21C7/32

    CPC分类号： G21D1/02 ,  F16K1/10 ,  G21Y2002/101 ,  G21Y2002/303 ,  G21Y2004/304 ,  Y02E30/40

    摘要： A main steam isolation valve of a reactor power plant comprises a valve body provided with inlet and outlet portions through which a steam flows, a cylindrical valve disk accommodated in the valve body to be reciprocatingly movable therein along an inner peripheral surface of the valve body for opening and closing the steam flow inlet portion and a driving mechanism secured to the valve body and operatively connected to the valve disk for reciprocatingly moving the valve disk in the valve body. A coupling member is applied to an end opening of the valve body for holding the valve disk when the valve disk is shifted to a position fully opening the inlet portion. A tubular wall member is integrally formed with the valve body so as to surround the valve disk with a gap therebetween when the valve disk is fully opened. A guide rib is further disposed to the valve body for causing asymmetric steam flow in the inlet portion of the steam flow of the valve body.

    摘要翻译： 反应堆发电厂的主要蒸汽隔离阀包括：阀体，其设置有蒸汽流过的入口和出口部分，容纳在阀体中的圆柱形阀盘，以沿着阀体的内周面往复运动， 打开和关闭蒸汽流入口部分和驱动机构，该驱动机构固定到阀体并可操作地连接到阀盘，用于使阀盘往复移动。 当阀盘移动到完全打开入口部分的位置时，联接构件被施加到阀体的端部开口，用于保持阀盘。 当阀盘完全打开时，管状壁构件与阀体一体地形成为围绕阀盘，其间具有间隙。 引导肋还设置在阀体上，用于在阀体的蒸汽流的入口部分引起不对称的蒸汽流动。