METHOD AND APPARATUS FOR APPLYING SYNTACTIC FOAM THERMAL INSULATION TO A LENGTH OF PIPE
    4.
    发明申请
    METHOD AND APPARATUS FOR APPLYING SYNTACTIC FOAM THERMAL INSULATION TO A LENGTH OF PIPE 审中-公开
    用于将管状泡沫热绝缘应用于管子长度的方法和装置

    公开(公告)号:US20010043991A1

    公开(公告)日:2001-11-22

    申请号:US09464997

    申请日:1999-12-16

    发明人: LOU W. WATKINS

    IPC分类号: B05D003/12 B29C047/12

    摘要: An inner syntactic foam insulator and an outer protective cover are co-extruded around a length of pipe. The protective cover is then rapidly solidified to retain the syntactic foam insulator in a desired shape about the length of pipe. The protective cover is preferably a thermoplastic or a thermosetting material. One technique for rapidly solidifying the thermoplastic protective cover is to bring the protective cover into contact with a liquid coolant (e.g., water). A thermosetting protective cover is rapidly solidified by heating the cover. According to another aspect of the invention, an inner syntactic foam insulator and an outer protective cover are co-extruded to provide an apparatus comprising the inner syntactic foam insulator encased by the outer protective cover. Advantageously, rapidly solidifying the protective layer provides a hard outer layer that protects the syntactic foam insulator as the insulator cures.

    摘要翻译: 内部复合泡沫绝缘体和外保护盖围绕一段管道共挤出。 然后保护罩快速固化,以将管状泡沫绝缘体保持在围绕管长度的所需形状。 保护盖优选为热塑性或热固性材料。 用于快速固化热塑性保护罩的一种技术是使保护盖与液体冷却剂(例如水)接触。 热固保护罩通过加热盖快速凝固。 根据本发明的另一方面,一种内部复合泡沫绝缘子和一个外部保护盖共同挤出,以提供包括由外部保护罩包围的内部复合泡沫绝缘体的装置。 有利地,快速固化保护层提供了硬的外层,其在绝缘体固化时保护复合泡沫绝缘体。

    Tubing Manufacture
    7.
    发明申请
    Tubing Manufacture 审中-公开
    管件制造

    公开(公告)号:US20080203624A1

    公开(公告)日:2008-08-28

    申请号:US12071709

    申请日:2008-02-25

    申请人: John Angus Dunn

    发明人: John Angus Dunn

    IPC分类号: B29C55/28

    摘要: Apparatus for vulcanising and corrugating rubber tubing includes a mold with a corrugated inner surface. The mold is heated by electrical resistance heating elements. A length of uncured straight tubing is placed in the mold and its external surface is forced into contact with the corrugated mold surface by the combination of a positive gas pressure within the tubing and a negative gas pressure outside the tubing. The tubing is maintained in the heated mold for long enough for it to be vulcanised and take the internal shape of the mold.

    摘要翻译: 用于硫化和波纹橡胶管的装置包括具有波纹内表面的模具。 模具由电阻加热元件加热。 将未固化的直管长度放置在模具中,并且其外表面通过管内的正气体压力和管道外的负气体压力的组合而被迫与波纹模具表面接触。 将管道保持在加热的模具中足够长的时间以使其硫化并取得模具的内部形状。