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    • 72. 发明授权
    • Extrusion die plate construction
    • 挤出模板结构
    • US4167386A
    • 1979-09-11
    • US836318
    • 1977-09-26
    • John B. Mallay
    • John B. Mallay
    • B23P15/16B23P15/24B29B9/06B29C48/345B29F3/04
    • B23P15/24B23P15/16B29B9/065B29C47/30B29C47/0011
    • An extrusion die plate and method of making same, the die plate having a die plate body with a die plate face, and a plurality of extrusion passageways in the die plate body terminating generally at the die plate face. Discreet, spaced extrusion port formations made of a unitary body of a machinable material of greater hardness than the material of the die plate body are positioned on the die plate body, each of the formations defining an extrusion port which registers with a respective one of the extrusion passageways in the die plate body, the extrusion port defining a terminal extrusion orifice, each of the formations having a substantially planar discharge surface surrounding the extrusion orifice, the respective discharge surfaces being substantially coplanar with each other and with an abrasion resistance facing positioned on the die plate face, the facing substantially filling the space between the extrusion port formations and, together with the discharge surfaces on the extrusion port formations, forming a substantially planar discharge face.
    • 一种挤压模板及其制造方法,该模板具有带有模板面的模板体,以及在模板体内的多个挤压通路,大体在模板面上终止。 由具有比模板主体的材料更硬的可机加工材料的整体形成的离散的挤压端口结构定位在模板主体上,每个结构限定了挤出端口,其与相应的一个 模板主体中的挤压通道,挤压端口限定端部挤出孔,每个结构具有围绕挤出孔的基本上平面的排出表面,相应的排放表面基本上彼此共面并且面向位于 模板面,面对件基本上填充挤压端口结构之间的空间,并与挤压端口结构上的排出表面一起形成基本平坦的排出面。
    • 73. 发明授权
    • Pelletizing process
    • 造粒工艺
    • US4112039A
    • 1978-09-05
    • US727155
    • 1976-09-27
    • David W. Cuff
    • David W. Cuff
    • B29B9/06B29C48/345B28B11/16
    • B29B9/065B29C47/30B29C2793/009B29C47/0011
    • An extrusion pelleting process and apparatus is disclosed wherein the outermost portion of an extrusion orifice is surrounded by a heat reservoir maintained at a temperature significantly higher than the softening temperature range of the polymer being extruded. The high temperature heat reservoir constitutes a heat source from which individual extrusion orifices may be heated above the polymer's softening range to assist in melting frozen plugs of polymer which may block the orifice from time to time.Also disclosed is a heat flow control mechanism, in effect, for slowing the heat release from the reservoir to the individual extrusion orifices for economy of operation while still making available such high temperature source for unfreezing such plugs.
    • 挤出造粒方法和装置被公开,其中挤出孔的最外部分由保持在显着高于被挤出的聚合物的软化温度范围的温度的储热器包围。 高温蓄热器构成热源,单个挤出孔可以从该热源高于聚合物的软化范围,以有助于熔化聚合物的冷冻塞,这可能会不时地堵塞孔。
    • 74. 发明授权
    • Method of making passage structures
    • 制作通道结构的方法
    • US4065046A
    • 1977-12-27
    • US533032
    • 1974-12-16
    • John A. RobertsPeter R. Roberts
    • John A. RobertsPeter R. Roberts
    • B21C37/04B21C37/06B23P15/04B29C48/345B23P17/00B32B3/10
    • B29C47/30B21C37/042B21C37/06B23P15/04B29C47/0028Y10T156/1052Y10T156/1075Y10T29/49801Y10T29/4981
    • A collimated hole structure formed by constricting a plurality of tubular elements each provided with a core for supporting the tubular element during the constricting operation. The bundle of elements is constricted to a point where the elements effectively fuse into a substantially monolithic body. The cores are then removed, leaving a plurality of extremely small diameter, generally parallel passages in a solid body. The tubular elements may be arranged in any desired array, and thus the passages may be provided similarly in any desired array. The passages may have high aspect ratios and may be closely juxtaposed. In one illustrative application, the collimated hole structure is provided with dielectric film and utilized as an anode portion of an electrolytic capacitor. In another illustrative application, the collimated hole structure is utilized as a tip for a drilling device.
    • 准直孔结构,其通过收缩多个管状元件而形成,每个管状元件设置有用于在收缩操作期间支撑管状元件的芯。 元件束被收缩到一个点,其中元件有效地融合成基本上整体的主体。 然后去除芯,在固体中留下多个极小直径的,大致平行的通道。 管状元件可以以任何期望的阵列布置,因此通道可以以任何期望的阵列相似地设置。 通道可以具有高纵横比并且可以紧密并置。 在一个说明性应用中,准直孔结构设置有电介质膜并用作电解电容器的阳极部分。 在另一示例性应用中,准直孔结构用作钻井装置的尖端。
    • 75. 发明授权
    • Process of making a laminated spinneret
    • 制作层压喷丝板的工艺
    • US4054468A
    • 1977-10-18
    • US720849
    • 1976-09-07
    • Leland Robert HonnakerGary Lee JonesWalter Ernest Wood
    • Leland Robert HonnakerGary Lee JonesWalter Ernest Wood
    • B29C48/345C22C27/02C22F1/18D01D4/02D01D3/00
    • D01D4/02B29C47/30B29C47/0014
    • A corrosion-resistant spinneret, suitable for spinning filaments of poly(p-phenylene terephthalamide) from a viscous solution of the polymer in 98-100 percent sulfuric acid, is prepared from a plate of tantalum alloy or stainless steel which is clad on one face with a layer of pure tantalum. A spinneret blank is formed, counterbores are drilled through the plate and partially into the tantalum layer, the blank is annealed, spinneret capillaries are formed from the counterbores through the tantalum layer to the exit face of the spinneret, the face is polished to remove protrusions, and the face is hardened by heat-treatment in nitrogen. Uniform capillaries having a diameter of about 0.002 inch (0.05 mm) and a length greater than about 0.005 inch (0.13 mm) can be formed in spinnerets without breaking tools used in their production.
    • 一种耐腐蚀喷丝头,适用于从98-100%硫酸中的聚合物的粘性溶液中纺丝聚对苯二甲酰对苯二胺的长丝,由一块钽合金或不锈钢板制成,该板由一面覆盖 与一层纯钽。 形成喷丝头坯料,将沉孔穿过板并部分地进入钽层,坯料退火,喷丝头毛细管由沉淀通过钽层形成到喷丝板的出射面,抛光面以除去突起 ,并且通过在氮气中热处理使表面硬化。 具有大约0.002英寸(0.05mm)直径和大于约0.005英寸(0.13mm)的长度的均匀毛细管可以在喷丝头中形成,而不用在其生产中使用的工具。
    • 76. 发明授权
    • Distributor for thermoplastic extrusion die
    • 热塑性挤出模具分销商
    • US4043739A
    • 1977-08-23
    • US569779
    • 1975-04-21
    • David W. Appel
    • David W. Appel
    • B29C48/31B29C48/345B29F3/04
    • B29C47/165B29C47/30B29C47/0014B29C47/0021
    • An extrusion die for thermoplastic polymer is disclosed having a distributor which provides substantially constant residence time and pressure loss of polymer flowing through the die from the inlet to the extrusion aperture. Dies are disclosed for extrusion of sheet, film and discontinuous microfibers. The distributor has cross flow channels for conveying the polymer laterally and axially connected pressure loss and residence time control sections for independently compensating for the varying pressure loss and residence time characteristics of the polymer flow through the distribution channels. With a distributor so constructed, the overall height of the die remains substantially the same as the die width increases so that the distributor is particularly suitable for dies for wide extrusion lines.
    • 公开了一种用于热塑性聚合物的挤出模具,其具有分配器,该分配器基本上恒定地从入口到挤出孔流过模具的聚合物的停留时间和压力损失。 公开了用于片材,薄膜和不连续微纤维挤出的模具。 分配器具有横向流动通道,用于输送聚合物横向和轴向连接的压力损失和停留时间控制部分,用于独立地补偿通过分配通道的聚合物流的变化的压力损失和停留时间特性。 通过这样构造的分配器,模具的总体高度保持与模具宽度增加大致相同,使得分配器特别适用于宽的挤出生产线的模具。