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    • 51. 发明申请
    • Cable Manufacturing Process
    • 电缆制造工艺
    • US20080128939A1
    • 2008-06-05
    • US11667939
    • 2004-11-23
    • Gaia Dell' AnnaAlberto BareggiSergio Belli
    • Gaia Dell' AnnaAlberto BareggiSergio Belli
    • B29C47/04
    • B29C47/26B29C47/0016B29C47/0023B29C47/025B29C47/065B29C47/265B29L2031/3462H01B13/141H01B13/143
    • A process for manufacturing a cable which includes a conductor; an inner semiconductive layer surrounding the conductor and having a thickness lower than or equal to 0.4 mm; and an insulating layer surrounding the inner semiconductive layer. The process includes the step of co-extruding the inner semiconductive layer and the insulating layer and includes: a) providing a first annular flow of inner semiconductive material and a second annular flow of insulating material; b) contacting the outer surface of the first annular flow and the inner surface of the second annular flow at an axial distance from the contacting point where the inner surface of the first annular flow contacts the conductor; c) selecting in combination the predetermined feeding speed and the contacting point as a function of the dynamic viscosity of the inner semiconductive material and of the insulating material, so that a ratio between the shear stress of the inner semiconductive layer at the radially inner wall of the extrusion die and the shear stress of the insulating layer at the radially outer wall of the extrusion die, in proximity of the contacting point, is about 0.5 to 4; and d) compression extruding the insulating layer and the inner semiconductive layer onto the conductor.
    • 一种制造包括导体的电缆的方法; 围绕导体并具有小于或等于0.4mm的厚度的内半导体层; 以及围绕内部半导体层的绝缘层。 该方法包括共挤出内部半导体层和绝缘层的步骤,包括:a)提供内部半导体材料的第一环形流和绝缘材料的第二环形流; b)使所述第一环形流的外表面与所述第二环形流的内表面在距离所述第一环形流的内表面接触所述导体的接触点的轴向距离处接触; c)作为内部半导体材料和绝缘材料的动态粘度的函数,组合选择预定的进给速度和接触点,使得内部半导体层在径向内壁处的剪切应力之间的比率 在挤压模的径向外壁处的接触点处的挤压模和绝缘层的剪切应力为约0.5至4; 以及d)将绝缘层和内半导体层压缩挤压到导体上。
    • 57. 发明申请
    • Die set of molding extruder for tire with slanted conductive ring
    • 模具用于轮胎的成型挤出机具有倾斜的导电环
    • US20050208167A1
    • 2005-09-22
    • US10971677
    • 2004-10-22
    • Jeong-Sun YouIl-Taik JungChi-Hoon ChoHun-Seon Baik
    • Jeong-Sun YouIl-Taik JungChi-Hoon ChoHun-Seon Baik
    • B29C47/12B29C47/04B29C47/06B29C47/30B29C47/56B29K21/00B29L30/00B60C19/08
    • B60C19/08B29C48/07B29C48/09B29C48/18B29C48/19B29C48/21B29C48/30B29C48/307B29C48/345B29C48/49B29C48/705B29L2030/002
    • A mold extruder for a tire with a highly electrically conductive ring and a manufacturing method using the same. The extruder solves the problem of static electricity caused by failure to discharge charges generated in a vehicle body, to the ground, but accumulating charges on the tire when a large amount of silica is used into the tread rubber composition of a tire. The mold extruding die for forming a conductive ring on the tread extrudes a cap tread, an under tread, and tread wings simultaneously, is installed to a head section of a mold extruder having a tri-extruder for extruding a tire tread, and includes a preform die, a final die, and a cassette. The extruding passages for the cap tread, the under tread, and the tread wings are formed by assembling the preform die, the final die, and the cassette. By designing a conductive ring passage for the extruding passage of the under tread to penetrate the extruding passage of the cap tread, the under tread rubber composition protrudes so as to divide a space of the cap tread extruding passage by the conductive ring passage penetrating the cap tread into a right-side space and a left-side space. For the purpose of easily protruding the under tread rubber composition to an upper end of the cap tread through the conductive ring passage, a triangular recess on a ceiling of the under tread extruding passage penetrates the cap tread extruding passage from a rear side to a front side is formed.
    • 一种用于具有高导电性环的轮胎的模具挤出机及其制造方法。 该挤出机解决了当轮胎胎面橡胶组合物中使用大量的二氧化硅时,由于不能将在车身中产生的电荷排放到地面而产生的静电导致静电问题,而是在轮胎上累积电荷。 用于在胎面上形成导电环的模具挤出模具同时挤压胎面胎面,胎面下面和胎面胎面,安装到具有用于挤出轮胎胎面的三挤出机的模具挤出机的头部,并且包括 预成型模具,最终模具和盒子。 通过组装预成型模具,最终模具和盒子来形成用于盖子胎面,胎面下部和胎面翼片的挤压通道。 通过设计用于下胎面的挤压通道的导电环通道以穿透胎面胎面的挤压通道,胎面下橡胶组合物突出,以便通过穿过帽的导电环通道将帽胎面挤压通道的空间分开 踏入右侧空间和左侧空间。 为了通过导电环通道容易地将胎面下橡胶组合物突出到胎面胎冠的上端,胎面下挤压通道的天花板上的三角形凹口从后侧到前面穿过胎面挤压通道 侧面形成。
    • 59. 发明授权
    • Methods of making sheets with arrays of projections
    • 制作投影阵列的方法
    • US06878332B2
    • 2005-04-12
    • US10653727
    • 2003-09-02
    • Ernesto S. TachauerBrian J. VanBenschoten
    • Ernesto S. TachauerBrian J. VanBenschoten
    • A44B18/00B29C47/04
    • A44B18/0049B29C2043/465B29L2031/729Y10T24/27Y10T24/2792Y10T428/24008Y10T428/24017
    • Touch fasteners with different portions having different material properties, and methods and apparatus for making such a product. In one embodiment, the fastener includes a cross-linkable polymer, and a first portion of the fastener is cross-linked and a second portion of the fastener is not cross-linked or is cross-linked to a degree less than said first portion. In another embodiment, the fastener is made in a continuous process on a rotating mold roll having a plurality of fastener element mold cavities extending into the mold roll from its outer circumferential surface. The method includes applying a first polymer to the mold roll and forcing some of the first polymer into the mold cavities, with some of the first polymer remaining on the surface of the mold roll in the form of a film having thickness; with a doctoring blade, removing at least some of the first polymer remaining on the surface of the mold roll to at least reduce the thickness of the film of the first polymer on the mold roll surface (in some cases, substantially all of the polymer on the mold roll surface is removed); and applying a second polymer to the mold roll, the second polymer being compatible with, and adhering to, the first polymer.
    • 接触具有不同材料性质的不同部分的紧固件,以及用于制造这种产品的方法和装置。 在一个实施例中,紧固件包括可交联的聚合物,并且紧固件的第一部分是交联的,并且紧固件的第二部分不是交联的或者交联到小于所述第一部分的程度。 在另一个实施例中,紧固件以连续的方式制造在具有从其外圆周表面延伸到模具辊中的多个紧固件元件模腔的旋转模具辊上。 该方法包括将第一聚合物施加到模具辊上并迫使一些第一聚合物进入模腔,其中一些第一聚合物保留在具有厚度的膜形式的模具辊的表面上; 使用刮刀,除去保留在模具辊表面上的至少一些第一聚合物以至少减小模具辊表面上的第一聚合物膜的厚度(在一些情况下,基本上所有的聚合物都在 去除模具辊表面); 以及将第二聚合物施加到所述模具辊上,所述第二聚合物与所述第一聚合物相容并附着于所述第一聚合物。