Process for forming an expanded porous tetrafluoroethylene polymer
    3.
    发明授权
    Process for forming an expanded porous tetrafluoroethylene polymer 失效
    形成膨体多孔四氟乙烯聚合物的方法

    公开(公告)号:US5098625A

    公开(公告)日:1992-03-24

    申请号:US628322

    申请日:1990-12-17

    摘要: A process for preparing an improved expanded porous polytetrafluorethylene product having a higher density and improved cold flow properties and prepared from a paste formed from a polytetrafluoroethylene resin and a lubricant. The method includes extruding the paste through an extrusion die at a reduction ratio of less than 100, calendering the extrudate, removing the lubricant, and heating the extrudate to a temperature greater than the crystalline melting point of polytetrafluoroethylene but generally below the temperature at which thermal decomposition becomes appreciable while concurrently expanding the extrudate to at least twice its original length.

    摘要翻译: 一种制备改进的膨胀多孔聚四氟乙烯产品的方法,其具有更高的密度和更好的冷流动性能,并且由由聚四氟乙烯树脂和润滑剂形成的糊料制备。 该方法包括以小于100的压缩比将挤压模挤出挤出模具,压延挤出物,除去润滑剂,并将挤出物加热至高于聚四氟乙烯的结晶熔点的温度,但通常低于热 分解变得明显,同时将挤出物膨胀至其原始长度的至少两倍。

    Production method of a polytetrafluoroethylene sheet or film
    5.
    发明授权
    Production method of a polytetrafluoroethylene sheet or film 有权
    聚四氟乙烯片或薄膜的制造方法

    公开(公告)号:US06702971B2

    公开(公告)日:2004-03-09

    申请号:US09985385

    申请日:2001-11-02

    IPC分类号: B29C4712

    摘要: To provide a method of producing a uniaxially stretched polytetrafluoroethylene gasket tape, which comprises: (1) a step for preparing a paste comprising a mixture of a polytetrafluoroethylene powder obtained by emulsion polymerization and an extrusion aid, (2) a step for extruding the paste by means of an extruder equipped with a die which has plural separators inside an orifice thereof having a rectangular cross section, (3) a step for rolling, in the extruding direction, an extrudate having slit lines to give a rolled polytetrafluoroethylene sheet, (4) a step for uniaxially stretching the rolled sheet in the rolling direction after removing the extrusion aid from the rolled sheet, and (5) a step for heat-treating the obtained uniaxially stretched polytetrafluoroethylene sheet. The die of the extruder has plural sheet-like separators in the orifice thereof having a rectangular cross section. The separators are mounted so that free ends thereof are located at a point exceeding a center point of a long side of the orifice, and function to provide slit lines inside the extrudate in parallel with the long side of the orifice. The high performance inexpensive PTFE gasket tape is produced by the uniaxially stretching method and has properties equal to those of biaxially stretched PTFE gasket tape.

    摘要翻译: 提供一种单轴拉伸聚四氟乙烯垫片带的制造方法,其特征在于,包括:(1)制备包含通过乳液聚合获得的聚四氟乙烯粉末与挤出助剂的混合物的糊料的步骤,(2)挤出糊料的步骤 (3)在挤出方向上轧制具有切割线的挤出物以得到轧制的聚四氟乙烯片材的步骤(4),(4)在具有矩形横截面的孔中具有多个分离器的模具, )从轧制板除去挤出助剂后,在轧制方向上单轴拉伸轧制板的工序,(5)对所得单轴拉伸聚四氟乙烯片进行热处理的工序。 挤出机的模具在其孔中具有多个片状隔离物,其截面为矩形。 分离器被安装成使得其自由端位于超过孔的长边的中心点的点上,并且用于在挤出物内部与孔的长边平行地提供切割线。 高性能廉价的PTFE垫片带通过单向拉伸法制造,具有与双轴拉伸PTFE垫片带的性能相同的性能。

    Porous polytetrafluoroethylene molded article
    6.
    发明授权
    Porous polytetrafluoroethylene molded article 失效
    多孔聚四氟乙烯成型品

    公开(公告)号:US6080472A

    公开(公告)日:2000-06-27

    申请号:US103722

    申请日:1998-06-24

    IPC分类号: B29C55/00 C08J5/18 B32B3/00

    摘要: To provide a porous polytetrafluoroethylene sheet which has excellent cold flow resistance and is used suitably for gaskets and a highly densified polytetrafluoroethylene sheet which has high tensile strength and flex life and is used suitably for diaphragms. The porous polytetrafluoroethylene sheet is produced from a polytetrafluoroethylene material having a microstructure of nodes interconnected by fibrils and has MTS of from 3,000 to 12,000 psi and C.I. of 0.02 to 0.20 g/cc/psi. The highly densified polytetrafluoroethylene sheet is produced by compression-molding the porous polytetrafluoroethylene sheet and then sintering completely. The porous polytetrafluoroethylene sheet is also laminated with a sheet of other material to provide a composite polytetrafluoroethylene molded article.

    摘要翻译: 为了提供耐冷流动性优异的多孔聚四氟乙烯片材,适用于垫片和高度致密化的聚四氟乙烯片材,其具有高拉伸强度和挠曲寿命,并适用于隔膜。 多孔聚四氟乙烯片材由具有通过原纤维互连的节点的微结构的聚四氟乙烯材料制成,并且具有3,000至12,000psi的MTS和C.I. 为0.02〜0.20g / cc / psi。 高密度聚四氟乙烯片材是通过压缩多孔聚四氟乙烯片材然后完全烧结制成的。 多孔聚四氟乙烯片也与其他材料片层压,以提供复合聚四氟乙烯模塑制品。

    Insulator for high current ion implanters
    7.
    发明授权
    Insulator for high current ion implanters 有权
    绝缘子用于高电流离子注入机

    公开(公告)号:US07804076B2

    公开(公告)日:2010-09-28

    申请号:US11382600

    申请日:2006-05-10

    IPC分类号: H01J37/317

    摘要: An insulator usable in high current ion implantation systems includes increased surface due to the configuration of an inner cylinder and an outer cylinder coupled to the inner cylinder at one end. A cylindrical cavity extends between the two cylinders increasing the surface area and making the insulator resistant to being coated by a coating that could produce a leakage path.

    摘要翻译: 可用于高电流离子注入系统的绝缘体包括由于在一端连接到内筒的内筒和外筒的构造而增加的表面。 圆柱形空腔在两个气缸之间延伸,增加了表面积,并使得绝缘体能够被可能产生泄漏路径的涂层涂覆。

    Temperature vector analyzer
    8.
    发明申请
    Temperature vector analyzer 审中-公开
    温度矢量分析仪

    公开(公告)号:US20080317094A1

    公开(公告)日:2008-12-25

    申请号:US12076130

    申请日:2008-03-14

    IPC分类号: G01J5/00

    摘要: The present invention discloses a temperature vector analyzer, which comprises the following elements: a temperature detection device further comprising a plurality of infrared sensors; a temperature-vector display panel; a microprocessor receiving infrared-radiating heat source temperatures detected by the plurality of infrared sensors, calculating the vector components of the infrared-radiating heat source temperatures to attain a center-originating temperature vector, and presenting the temperature vector on the temperature-vector display panel; and a power source providing power for the temperature detection device, the temperature-vector display panel, and the microprocessor. The present invention can apply to detect a local heat origin or a local heat-dissipating point.

    摘要翻译: 本发明公开了一种温度矢量分析仪,包括以下元件:还包括多个红外传感器的温度检测装置; 温度矢量显示面板; 接收多个红外线传感器检测出的红外辐射热源温度的微处理器,计算红外辐射热源温度的矢量分量,得到中心起始温度矢量,并将温度矢量呈现在温度矢量显示面板上 ; 以及为温度检测装置,温度矢量显示面板和微处理器提供电力的电源。 本发明可以应用于检测局部热源或局部散热点。

    Probe cover for ear thermometer
    10.
    发明申请
    Probe cover for ear thermometer 审中-公开
    耳温度计探头盖

    公开(公告)号:US20070263698A1

    公开(公告)日:2007-11-15

    申请号:US11545506

    申请日:2006-10-11

    IPC分类号: G01K1/08

    CPC分类号: G01J5/02 G01J5/021

    摘要: The present invention discloses a probe cover for an ear thermometer, which comprises: a film cover and a base. The film cover has a cover window able to contact the probe window at the front end of the ear thermometer and a hollow cone able to contact the sidewall of the probe. The width of the cover window is greater than the width of the probe window. Thereby, the present invention can prevent the variation of infrared transmittance caused by the misarrangement and non-uniform thickness of the probe cover film disposed at the front of the probe window.

    摘要翻译: 本发明公开了一种用于耳温度计的探针盖,其包括:胶片盖和底座。 胶片盖具有能够接触耳温度计前端的探针窗口和能够接触探针侧壁的中空锥体的盖窗。 盖窗口的宽度大于探头窗口的宽度。 由此,本发明能够防止由设置在探针窗前部的探针覆盖膜的误差和不均匀厚度引起的红外线透射率的变化。