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    • 2. 发明申请
    • METHODS AND INSTALLATIONS FOR PRODUCING A BIAXIALLY ORIENTED TUBE FROM THERMOPLASTIC MATERIAL
    • WO2020130835A2
    • 2020-06-25
    • PCT/NL2019/050871
    • 2019-12-20
    • HOPPMANN INTERNATIONAL B.V.
    • RIJNHART, Nicolaas Wilhelmus HendrikusMEIER, Gerrit Lucas
    • B29C48/90B29C48/00B29C48/09B29C48/25B29C48/355B29C48/92
    • A method for producing a biaxially oriented tube from thermoplastic material, wherein a tube in preform condition is extruded from thermoplastic material and is subjected to a temperature conditioning. Use is made of an expansion device and of a drawing device which is arranged downstream of the expansion device. The expansion device comprises a non-deformable expansion part and a run-on part located upstream of the expansion part and having an upstream sealing member. The expansion device comprises a first gas discharge duct having one or more first inlet ports in the exterior surface of the expansion device, a first inlet port being open or closed or partly closed dependent on whether or not the first inlet port is covered and closed, or partly closed, by the tube. A first gas volume is present between the expansion device and the tube, the first gas volume being limited at an upstream end thereof by sealing contact between the tube in preform condition and the upstream sealing member of the run-of part and a downstream end thereof by sealing engagement between the tube and at least a downstream portion of the expansion part, e.g. near or at the transition to the run-off part. A first gas flow is effected from a first gas supply source via the first gas supply duct and the one or more first gas outlet ports thereof into the first gas volume and the pressure of the gas in the first gas volume is used to cause gradual expansion of the tube already before the tube contacts the expansion part. The first gas flow is maintained at a gas pressure independent constant first gas flow rate.
    • 5. 发明公开
    • METHOD AND DEVICE FOR MANUFACTURING BIAXIALLY ORIENTED TUBING
    • 方法和装置生产双轴定向管道
    • EP3173210A1
    • 2017-05-31
    • EP16201935.0
    • 2010-10-18
    • HOPPMANN INTERNATIONAL B.V.
    • VISSCHER, JanJANSEN KLOMP, Hendrik Jan CarelBOSCH, Jan-Mark
    • B29C47/90B29C47/88
    • A method for producing a biaxially oriented tube (10) from thermoplastic material. A tube (10) in preform condition (10) is extruded from thermoplastic material using an extruder (1) with an extruder (1) die head (3,5) having an inner die member (5) forming a lumen in the tube (10) in preform condition (10). A temperature conditioning is performed. Use is made of an expansion device which brings (90) about expansion of the tempered tube in (10) preform condition (10) in circumferential direction. The method comprises drawing the tempered tube (10) over the expansion device using a drawing device which is arranged downstream of the expansion device and acts on the tube (10), in such a manner that said tube (10) is transformed from a tube (10) in preform condition (10) into a biaxially oriented tube (10) with thermoplastic material which is oriented in axial direction and in circumferential direction of the tube (10), wherein said biaxially oriented tube (10) is cooled. The expansion device has a run-off part with a reduced diameter section and at least one outer diameter ring member(90,91) is arranged around said section. An increased diameter portion (105,200B,204) delimits the downstream end of the section. A pressurized gas is introduced in the fluid volume (101,210,220) between the reduced diameter section of the run-off part and the oriented tube (10,20).
    • 一种生产由热塑性材料的双轴取向管(10)的方法。 在条件预制件的管(10)(10)由热塑性材料使用在挤出机(1),在挤出机(1)的头部(3,5),其具有(5)形成在所述管的内腔(内部构件上挤出 10)在预成型件的条件(10)。 时,执行温度调节。 使用了约在(10)预制件的条件(10)圆周方向上的回火的管子的膨胀的膨胀装置这使(90)的。 该方法包括使用一个绘图装置的所有其被布置在下游的膨胀装置和作用在管(10)绘制回火的管子(10)在所述膨胀装置,在寻求一种方式即所述管(10)由一个管转化 (10)在预成型件的条件(10)到其在轴向方向上和在所述管(10)的圆周方向上取向,worin所述双轴取向管(10)的双轴拉伸管(10)与热塑性材料的所有被冷却。 膨胀装置具有带缩径部分和至少一个外径环状构件(90,91)围绕所述部分布置在截断部分。 在大径部(105,200B,204)限定了部分的下游端。 加压气体中的截断部分的直径减小部分和导向管(10,20)之间的流体体积(101210220)被引入。
    • 6. 发明公开
    • Methods and devices for manufacturing biaxially oriented tubing
    • VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON BIAXIAL ORIENTIERTEN ROHREN
    • EP2679379A3
    • 2014-01-22
    • EP13185710.4
    • 2010-10-18
    • HOPPMANN INTERNATIONAL B.V.
    • Visscher, JanBosch, Jan-MarkJansen Klomp, Hendrik Jan Carel
    • B29C55/26
    • B29D23/001B29C47/0019B29C47/0023B29C47/0038B29C47/0057B29C47/34B29C47/8805B29C47/8835B29C47/884B29C47/902B29C47/903B29C47/908B29C55/26B29C2947/92209B29C2947/92428B29K2027/06B29K2101/12B29K2995/0053B29L2023/22
    • A method for producing a biaxially oriented tube from thermoplastic material. A tube in preform condition is extruded from thermoplastic material using an extruder with an extruder die head having an inner die member forming a lumen in the tube in preform condition. A temperature conditioning is performed. Use is made of an expansion device having a nose end, which expansion device brings about expansion of the tempered tube in preform condition in circumferential direction. The method comprises drawing the tempered tube over the expansion device using a drawing device which is arranged downstream of the expansion device and acts on the tube, in such a manner that said tube is transformed from a tube in preform condition into a biaxially oriented tube with thermoplastic material which is oriented in axial direction and in circumferential direction of the tube, wherein said biaxially oriented tube is cooled.
      Use is made of one or more temperature sensors that sense the temperature of the tube in preform condition upstream of or at the nose end of the expansion device.
    • 一种从热塑性材料制造双轴取向管的方法。 在预成型条件下的管子使用具有挤出机模头的挤出机从热塑性材料中挤出,所述挤出机模头在预成型条件下具有在管中形成内腔的内模构件。 进行温度调节。 使用具有鼻端的膨胀装置,该膨胀装置在圆周方向上使预制件状态下的回火管伸长。 该方法包括使用布置装置将膨胀装置拉伸在膨胀装置上,拉拔装置布置在膨胀装置的下游并作用在管上,使得所述管在预成型条件下从管中转变成双轴取向管, 热塑性材料,其在管的轴向方向和圆周方向上定向,其中所述双轴取向管被冷却。 使用一个或多个温度传感器,该温度传感器在扩展装置的上游或在鼻端的预制件条件下感测管的温度。