Hydrodynamic seal
    4.
    发明授权
    Hydrodynamic seal 失效
    流体动力密封

    公开(公告)号:US4212476A

    公开(公告)日:1980-07-15

    申请号:US58511

    申请日:1979-07-18

    IPC分类号: F16J15/32

    CPC分类号: F16J15/328 F16J15/3244

    摘要: Disclosed is a hydrodynamic seal comprising a sealing member of a fluorine resin including a sealing lip portion having a conical shape and a fixing portion extending from the sealing lip portion in the radial direction, a gripping support member for gripping and supporting the fixing portion of said sealing member and a coil spring member wound helically in the conical shape on the sealing lip portion of the sealing member, wherein a spiral projection is formed on the peripheral face of the sealing lip portion by the spring member.

    摘要翻译: 公开了一种流体动力密封件,其包括氟树脂的密封构件,其包括具有锥形形状的密封唇部分和在径向方向上从密封唇部分延伸的固定部分,用于夹持和支撑所述密封唇部分的固定部分的夹持支撑构件 密封构件和螺旋弹簧构件,其在密封构件的密封唇部上螺旋形地形成圆锥形,其中,通过弹簧构件在密封唇部的周面上形成螺旋形突起。

    Bearing seals and bearing and seal assemblies
    5.
    发明授权
    Bearing seals and bearing and seal assemblies 失效
    轴承密封件和轴承和密封组件

    公开(公告)号:US5697710A

    公开(公告)日:1997-12-16

    申请号:US733764

    申请日:1996-10-18

    摘要: A bearing seal suitable for sealing a bearing system (18) under extremely abrasive and damp conditions. The seal assembly (22) includes a metal casing (36) received in a housing (26) which defines a small annular gap (34) relative to a shaft (16) supported by the bearing system (18). The seal assembly (22) includes a first seal (42) and a second seal (48) spaced apart to define an annular space (60). The assembly (22) is provided with a plurality of passages (64/66) circumferentially spaced apart from one another. Upon pumping grease (76) under pressure into the bearing system, grease is forced to flow through the passages (64/66) whereby the annular gap (34) is filled with grease throughout substantially the entire circumference thereof. The mass of grease retained in the annular gap (34) serves as a barrier against water and abrasive particles. A bearing and seal assembly (10) is also disclosed.

    摘要翻译: 一种轴承密封件,适用于在极其磨蚀和潮湿的条件下密封轴承系统(18)。 密封组件(22)包括容纳在壳体(26)中的金属壳体(36),其限定相对于由轴承系统(18)支撑的轴(16)的小的环形间隙(34)。 密封组件(22)包括间隔开以限定环形空间(60)的第一密封件(42)和第二密封件(48)。 组件(22)设置有彼此周向间隔开的多个通道(64/66)。 当在压力下将油脂(76)泵送到轴承系统中时,润滑脂被迫流过通道(64/66),由此环形间隙(34)在整个大致整个圆周上都被填充润滑脂。 保留在环形间隙(34)中的油脂的质量用作对水和磨料颗粒的阻挡。 还公开了一种轴承和密封组件(10)。

    Abrasion-resistant flame-retardant composition
    6.
    发明授权
    Abrasion-resistant flame-retardant composition 失效
    耐磨阻燃组合物

    公开(公告)号:US5418272A

    公开(公告)日:1995-05-23

    申请号:US984999

    申请日:1992-12-02

    摘要: Provided is an abrasion-resistant composition comprising:(I) 100 parts by weight of a polymer component containing:(A) 50-90% by weight, based on the total polymer weight, of a polyolefinic resin having a maximum peak temperature (Tm) of higher than 125.degree. C. as measured by differential scanning calorimetry (DSC); and(B) 10-50% by weight, based on the total polymer weight, of a polyethylenic resin or rubber having a maximum peak temperature (Tm) of lower than 125.degree. C. as measured by DSC; and(II) 30-200 parts by weight of an inorganic flame retardant, said polymer component (I) containing 10.sup.-8 -10.sup.-3 gram equivalent based on 1 g of the polymers, of at least one functional group selected from:a: carboxyl group, an ester group thereof, or an anhydride group thereof,b: epoxy group,c: hydroxyl group,d: amino group,e: alkenyl cyclic imino ether group, andf: silane group.

    摘要翻译: 提供了一种耐磨组合物,其包含:(I)100重量份的聚合物组分,其包含:(A)基于总聚合物重量的50-90重量%的具有最大峰值温度(Tm ),通过差示扫描量热法(DSC)测量; 和(B)基于总聚合物重量的10-50重量%的通过DSC测量的具有最低峰温度(Tm)低于125℃的聚乙烯树脂或橡胶; 和(II)30-200重量份的无机阻燃剂,所述聚合物组分(I)含有10-8-10-3克当量,基于1g聚合物,至少一种选自以下的官能团: :羧基,其酯基或其酸酐基,b:环氧基,c:羟基,d:氨基,e:链烯基环亚氨基醚基,f:硅烷基。