Sizing apparatus
    1.
    发明授权
    Sizing apparatus 失效
    尺寸设备

    公开(公告)号:US6050800A

    公开(公告)日:2000-04-18

    申请号:US29690

    申请日:1998-03-13

    IPC分类号: B29C47/90 B29C47/94

    摘要: A sizing sleeve for controlling the diameter of plastic tube includes pressurized sizing sleeve portions in which fluid is injected under pressure about the tube circumference to form a lubricating layer. Drainage zones axially separate and isolate adjacent pressurized portions to allow independent temperature and pressure control. Each pressurized portion has flow stabilizer reducing variations in flow responsive to changes in the lubricating layer pressure. The flow stabilizer may comprise a high pressure fluid source and high pressure drop constrictor comprising fine apertures, which may be formed as grooves milled into end surface of abutting sizing sleeve segments.

    摘要翻译: PCT No.PCT / AU96 / 00585 Sec。 371日期1998年3月13日 102(e)1998年3月13日PCT PCT 1996年9月16日PCT公布。 公开号WO97 / 10093 日期1997年3月20日用于控制塑料管直径的定型套筒包括加压上浆套筒部分,其中流体在压力下围绕管圆周注入以形成润滑层。 排水区域轴向分离并隔离相邻的加压部分,以实现独立的温度和压力控制。 每个加压部分具有响应于润滑层压力变化的减少流量变化的流动稳定器。 流动稳定器可以包括高压流体源和包括细孔的高压降压缩机,其可以形成为铣削到邻接的施胶套筒段的端表面中的槽。

    Method and apparatus for manufacturing ribbed pipe
    2.
    发明授权
    Method and apparatus for manufacturing ribbed pipe 失效
    制造胶管的方法和装置

    公开(公告)号:US5139730A

    公开(公告)日:1992-08-18

    申请号:US679014

    申请日:1991-05-02

    摘要: The invention relates to a method and apparatus for manufacturing ribbed piping, wherein a formable mass in a plastic state is extruded into a substantially cylindrical forming space of a corrugator, the forming space being delimited by forming molds movable in the production direction of the apparatus and having grooves on the inner surface thereof for forming rib flanges. A stationary kernel portion of a mandrel cools the interior surface of the piping and extends beyond the forming space constituted by the forming molds of the corrugator.

    摘要翻译: PCT No.PCT / FI90 / 00249 Sec。 371日期1991年5月2日 102(e)日期1991年5月2日PCT提交1990年10月23日PCT公布。 出版物WO91 / 06417 日期1991年5月16日本发明涉及一种用于制造肋状管道的方法和装置,其中塑性状态下的可成形块体被挤压成瓦楞机的基本上圆柱形的成形空间,该成形空间通过在 该装置的生产方向并且在其内表面上具有用于形成肋凸缘的凹槽。 心轴的固定内核部分冷却管道的内表面并延伸超过由波纹机的成型模具构成的成形空间。

    Apparatus for manufacturing ribbed pipes
    3.
    发明授权
    Apparatus for manufacturing ribbed pipes 失效
    用于制造肋管的设备

    公开(公告)号:US5340299A

    公开(公告)日:1994-08-23

    申请号:US778171

    申请日:1992-03-12

    摘要: An apparatus for manufacturing from a mouldable material a pipe having ribs on its outer surface and a smooth inner surface has a core including a shaft, a conically widening mandrel located downstream of the shaft in a direction of production and a kernel having an initial zone and an end zone respectively of substantially uniform diameters successively disposed downstream of the mandrel. An extrusion sleeve surrounds the core and forms with the core a nozzle for the material. The extrusion sleeve has a first end face located upstream of the kernel. Moulds encase the extrusion sleeve and the core, the moulds being movable along endless paths and having grooves on inner surfaces for forming the ribs on the pipe. A heater heats the initial zone of the kernel, the initial zone of the kernel being cylindrical. A first cooler cools the end zone of the kernel. A second end face of an upstream outset of the end zone of the kernel conically widens in the direction of production from a smallest diameter substantially corresponding to the diameter of the initial zone to a largest diameter.

    摘要翻译: PCT No.PCT / FI90 / 00178 Sec。 371日期:1992年3月12日 102(e)1992年3月12日PCT PCT 1990年7月5日PCT公布。 出版物WO91 / 00797 日本1991年1月24日。一种用可制造材料制造的设备,其外表面上具有肋条和光滑的内表面的管具有包括轴的心轴,位于轴的生产方向下游的锥形加宽心轴, 具有分别具有基本上均匀直径的初始区域和端部区域的核,其连续地设置在心轴的下游。 挤压套筒围绕芯部并且与芯部形成用于材料的喷嘴。 挤出套筒具有位于内核上游的第一端面。 模具包住挤出套管和芯部,模具可沿着环形路径移动并且在内表面上具有凹槽以在管上形成肋条。 加热器加热核的初始区,核的初始区为圆柱形。 第一个冷却器冷却内核的结束区域。 核的端部区域的上游开始的第二端面从基本上对应于初始区域的直径到最大直径的最小直径在生产方向上圆锥形地变宽。

    Method for joining plastic pipes, a joint ring used in the joining and a
pipe joint provided with the method
    7.
    发明授权
    Method for joining plastic pipes, a joint ring used in the joining and a pipe joint provided with the method 失效
    用于连接塑料管的方法,用于接合的接头环和具有该方法的管接头

    公开(公告)号:US6149756A

    公开(公告)日:2000-11-21

    申请号:US125712

    申请日:1998-08-24

    申请人: Jyri Jarvenkyla

    发明人: Jyri Jarvenkyla

    摘要: A method for joining a first tubular member to a second tubular member. The method provides a stretchable and compressible welding ring having a flexible inner ring, a resistance coil wound around the inner ring and at least one layer of plastic coating the resistance coil. The method includes the step of arranging the first and second tubular members in overlapping relation with an end of the first tubular member inserted into an end of the second tubular member and with the welding ring encircling the first tubular member and compressed between the first and second tubular members. The method also includes the step of applying electric energy to the resistance coil to melt the at least one layer of plastic so that, upon cooling, the respective ends of the first and second tubular members are welded to the welding ring.

    摘要翻译: PCT No.PCT / FI97 / 00142 Sec。 371日期:1998年8月24日 102(e)1998年8月24日PCT 1997年3月4日PCT公布。 公开号WO97 / 33121 日期1997年9月12日一种用于将第一管状构件连接到第二管状构件的方法。 该方法提供了一种可拉伸和可压缩的焊接环,其具有柔性内环,围绕内环缠绕的电阻线圈和涂覆电阻线圈的至少一层塑料。 该方法包括将第一和第二管状构件布置成与插入第二管状构件的端部中的第一管状构件的端部重叠的关系,并且焊接环环绕第一管状构件并在第一和第二管状构件之间被压缩 管状构件。 该方法还包括向电阻线圈施加电能以熔化至少一层塑料的步骤,使得在冷却时将第一和第二管状构件的相应端部焊接到焊接环。

    Method and an apparatus for the extrusion of plastic pipes
    9.
    发明授权
    Method and an apparatus for the extrusion of plastic pipes 失效
    用于塑料管挤出的方法和装置

    公开(公告)号:US4865797A

    公开(公告)日:1989-09-12

    申请号:US234498

    申请日:1988-08-19

    申请人: Jyri Jarvenkyla

    发明人: Jyri Jarvenkyla

    摘要: The invention relates to a method and an apparatus for the extrusion of plastic pipes. Today, plastic pipes are provided with a sleeve in such a manner that the end of the pipe is heated, whereafter the end is expanded by means of a mandrel or a pressure medium. This step requires a separate sleeve machine, and it also takes plenty of time and consumes thermal energy. According to the invention a sleeve (22) is formed in connection with the extrusion of a pipe in an apparatus in which a mandrel (8) is surrounded by chill moulds (1, 2) moving in the axial direction of the apparatus. The sleeve is formed by providing some of the chill moulds with a recess (16) the shape of which corresponds to that of the sleeve (22) and by pressing a plasticized plastic hose (11) extruded through a nozzle (10) against the walls of the recess in the area thereof by means of pressure air.

    摘要翻译: PCT No.PCT / FI88 / 00005 Sec。 371日期1988年8月19日 102(e)日期1988年8月19日PCT提交1988年1月20日PCT公布。 出版物WO88 / 05377 日期:1988年7月28日。本发明涉及塑料管挤出的方法和装置。 今天,塑料管以这样一种方式设置有套管,使得管的端部被加热,之后通过心轴或压力介质来扩展端部。 这个步骤需要一个单独的套筒机器,它也需要大量的时间并消耗热能。 根据本发明,套筒(22)与在其中心轴(8)被设置在轴向方向上移动的冷却模具1,2包围的设备中的管道的挤压相关联地形成。 套筒是通过为一些冷却模具提供一个其形状对应于套筒(22)的凹槽(16)而形成的,并且通过将通过喷嘴(10)挤出的塑化塑料软管(11)压靠在壁 通过压力空气在其区域中的凹部。

    Plastics pipe
    10.
    发明授权
    Plastics pipe 有权
    塑料管

    公开(公告)号:US08470423B2

    公开(公告)日:2013-06-25

    申请号:US11458927

    申请日:2006-07-20

    申请人: Jyri Jarvenkyla

    发明人: Jyri Jarvenkyla

    IPC分类号: B32B1/08 B32B15/08

    摘要: A plastics pipe having a stabilized inner layer, wherein the inner layer comprises an extruded thermoplastic polymer comprising at least one polar stabilizer, wherein: (i) the thermoplastic polymer is provided with pendant polar functional groups, and/or (ii) the thermoplastic polymer comprises an effective amount of at least one filler provided with pendant polar functional groups, and/or (iii) the thermoplastic polymer comprises a blend of a non-polar thermoplastic polymer and a thermoplastic polymer provided with pendant polar functional groups.

    摘要翻译: 一种具有稳定的内层的塑料管,其中所述内层包括包含至少一种极性稳定剂的挤出的热塑性聚合物,其中:(i)所述热塑性聚合物具有侧链极性官能团,和/或(ii)热塑性聚合物 包括有效量的至少一种具有侧链极性官能团的填料,和/或(iii)热塑性聚合物包含非极性热塑性聚合物和提供有侧链极性官能团的热塑性聚合物的共混物。