Apparatus of making reproduction printing plates
    2.
    发明授权
    Apparatus of making reproduction printing plates 失效
    制作再现印版的装置

    公开(公告)号:US3945788A

    公开(公告)日:1976-03-23

    申请号:US586547

    申请日:1975-06-13

    IPC分类号: B41C3/06 B29C15/00

    CPC分类号: B41C3/06

    摘要: A method of making reproduction printing plates having steps of disposing an opposed member against a roll member which has on its outer surface a matrix with a predetermined gap therebetween, supplying a molten thermoplastic material to the gap, and driving at least one of the opposing and roll members to press and roll the molten thermoplastic material onto the matrix.An apparatus of making reproduction printing plates having a matrix, a roll member having thereon the matrix, an opposing member disposed against the roll member with a predetermined gap therebetween, a device for supplying molten thermoplastic material to the gap, and a device for driving at least one of the roll and opposing members to press and roll the molten thermoplastic material.

    摘要翻译: 一种制造再现印版的方法,其具有将相对构件设置在辊构件上的步骤,所述辊构件在其外表面上具有预定间隙的矩阵,向所述间隙提供熔融热塑性材料,并且驱动所述相对和 辊构件将熔融的热塑性材料压制并滚动到基体上。

    Method of making polypropylene printing plate using paper matrix
    4.
    发明授权
    Method of making polypropylene printing plate using paper matrix 失效
    使用纸基制造聚丙烯印版的方法

    公开(公告)号:US4297263A

    公开(公告)日:1981-10-27

    申请号:US669817

    申请日:1976-03-24

    CPC分类号: B41C3/06

    摘要: A method of making a polypropylene printing plate using a paper matrix in which a roll and an opposing member are prepared, a paper matrix is attached to one of the roll and opposing member, a crystalline ethylene-propylene copolymer having a MFI (melt flow index) of 3.about.10, containing ethylene less than 20% by weight and tensile yield strength of 220.about.330 kg/cm.sup.2 is continuously fed under molten state between the roll and the opposing member, and then the crystalline ethylene-propylene copolymer is pressed and cooled to be hardened.Further, a reproducing printing plates consists of a crystalline ethylene-propylene copolymer whose melt flow index is selected in a range of 3.about.10, which contains ethylene less than 20 weight % and which has the tensile yield strength of 220.about.330 kg/cm.sup.2.

    摘要翻译: 使用其中制备辊和相对构件的纸基体制造聚丙烯印刷板的方法,将纸基附着到辊和相对构件中的一个上,将具有MFI(熔体流动指数)的结晶乙烯 - 丙烯共聚物 )含有小于20重量%的乙烯和220℃的拉伸屈服强度为330kg / cm2的3差10在辊和相对构件之间在熔融状态下连续进料,然后压制结晶乙烯 - 丙烯共聚物, 冷却硬化。 此外,再现印版由结晶乙烯 - 丙烯共聚物组成,其熔体流动指数选择在3分之10的范围内,其含有小于20重量%的乙烯,并且其拉伸屈服强度为220分辨率为330千克/厘米2 。

    Axial fan
    5.
    发明授权
    Axial fan 失效
    轴流风扇

    公开(公告)号:US4152094A

    公开(公告)日:1979-05-01

    申请号:US733050

    申请日:1976-10-18

    IPC分类号: F04D29/54 F01D25/04

    摘要: The disclosure is concerned with an axial fan having a casing. Unacceptably high level of noise and low discharge pressure inherent in axial fans are attributable to a counter flow of fluid taking place through the gap between the radially outer ends of the rotating blades and the casing. The invention is directed to preventing the counter flow by providing guide vanes disposed in the gap and inclined symmetrically with the rotating blade, thereby to provide enhanced output flow rate and discharge pressure, as well as to reduce the level of noise. The invention is applicable also to such axial fan as having a baffle plate on the suction side of the rotating blade in the proximity thereof.

    摘要翻译: 本发明涉及具有壳体的轴流风扇。 轴向风扇固有的噪音和低排放压力的不可接受的高水平归因于通过旋转叶片的径向外端和壳体之间的间隙发生的流体逆流。 本发明旨在通过提供设置在间隙中的引导叶片并且与旋转叶片对称地倾斜来防止逆流,从而提供增强的输出流量和排出压力,以及降低噪声水平。 本发明也适用于在旋转叶片靠近的吸入侧具有挡板的这种轴流风扇。