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    • 10. 发明申请
    • PIPE
    • US20130306188A1
    • 2013-11-21
    • US13983598
    • 2012-02-07
    • Alan WoodHorst Sandner
    • Alan WoodHorst Sandner
    • F16L9/12
    • F16L9/12B29C47/0023B29C47/0092B29C47/8835B29C47/884B29C47/8865B29C47/903B29C47/904B29C71/0063B29C71/02B29C2791/006B29K2071/00C08J5/00C08J2371/10C08J2381/02E21B17/01F16L11/06
    • A polyetheretherketone pipe of length greater than 250 meters and a residual stress of less than 5 MPa may be made using a calibrator device (2) which includes a cone shaped opening (6) arranged to receive a molten extruded pipe shaped polymer. Attached to the front member (4) is a vacuum plate (14a) and successive vacuum plates (14b-14h) are attached to one another to define an array of vacuum plates, the vacuum plates being arranged to allow a vacuum to be applied to a pipe precursor passing through opening (16). The vacuum plates (14) also include (10) temperature control means for heating or cooling the plates and therefore heating or cooling a pipe precursor passing through the openings. With a vacuum applied to opening (6, 16) and heating/cooling the plates, an extruded hot plastics pipe is inserted into calibrator (2) via opening (6) and conveyed through opening (16) in plates (14), whereupon it is urged by the vacuum against the cylindrical surface defined by plates (14) to maintain its shape and the (15) temperature of each plate is controlled to control the rate of cooling of the pipe precursor passing through. The pipe may be cooled at a relatively slow rate so that a pipe made from a relatively fast crystallising polymer crystalises and the crystallinity of the pipe along its extent and throughout its thickness is substantially constant.
    • 长度大于250米,残余应力小于5MPa的聚醚醚酮管可以使用校准器装置(2)制成,所述校准装置包括设置成容纳熔融挤出管状聚合物的锥形开口(6)。 附接到前部构件(4)的是真空板(14a),并且连续的真空板(14b-14h)彼此附接以限定真空板阵列,真空板被布置成允许将真空施加到 通过开口(16)的管前体。 真空板(14)还包括(10)用于加热或冷却板的温度控制装置,因此加热或冷却通过开口的管状母体。 通过将真空施加到开口(6,16)并加热/冷却板,将挤出的热塑料管通过开口(6)插入到校准器(2)中,并通过板(14)中的开口(16)输送, 被真空推压到由板(14)限定的圆柱形表面上以保持其形状,并且控制每个板的(15)温度以控制通过的管前体的冷却速率。 管可以以相对较慢的速率冷却,使得由相对快速的结晶聚合物制成的管结晶,并且管的结晶度沿着其程度并且整个厚度基本上恒定。