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    • 7. 发明公开
    • PIPE
    • EP2673539A1
    • 2013-12-18
    • EP12704534.2
    • 2012-02-07
    • Victrex Manufacturing Limited
    • WOOD, AlanSANDNER, Horst
    • F16L11/06C08J5/00B29C47/90B29C71/00
    • F16L9/12B29C48/09B29C48/1474B29C48/903B29C48/904B29C48/913B29C48/9135B29C48/916B29C71/0063B29C71/02B29C2791/006B29K2071/00C08J5/00C08J2371/10C08J2381/02E21B17/01F16L11/06
    • 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 crystallizing polymer crystallizes and the crystallinity of the pipe along its extent and throughout its thickness is substantially constant.
    • 长度大于250米并且残余应力小于5MPa的聚醚醚酮管可以使用校准器装置(2)来制造,校准器装置(2)包括布置成接收熔融挤出管形聚合物的锥形开口(6)。 在前部构件(4)上连接有真空板(14a),并且连续的真空板(14b-14h)彼此连接以限定真空板阵列,真空板布置成允许真空施加到真空板 管道前体穿过开口(16)。 真空板(14)还包括(10)温度控制装置,用于加热或冷却板,并因此加热或冷却穿过开口的管道前体。 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)插入校准器(2)并且通过板(14)中的开口(16)输送,由此其 被真空推向由板(14)限定的圆柱形表面以保持其形状,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。 管子可以以相对缓慢的速度冷却,以使得由相对快速结晶的聚合物制成的管子结晶并且管子沿其范围和整个厚度的结晶度基本恒定。