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    • 59. 发明申请
    • PROCESS FOR PRODUCING INSULATED JACKETED PIPES BY A CONTINUOUS PRODUCTION PROCESS
    • 通过连续生产工艺生产绝缘管道的方法
    • US20130133777A1
    • 2013-05-30
    • US13684976
    • 2012-11-26
    • Carsten Ellersiek
    • Carsten Ellersiek
    • B05D1/26F16L9/14
    • B05D1/265B29C39/18B29C67/246B29K2075/00B32B1/08B32B15/046B32B27/065B32B27/32B32B2597/00F16L9/14F16L59/143
    • The present invention relates to a continuous process for producing insulated pipes comprising a conveying pipe, a jacketing pipe, a layer made of at least one polyurethane between conveying pipe and jacketing pipe, and a foil tube between the at least one polyurethane and the jacketing pipe, comprising at least the steps of (A) in a gripper-belt system, providing a foil tube formed continuously from a foil, and providing a conveying pipe, where the arrangement has the conveying pipe within the foil tube in such a way that an annular gap is formed between conveying pipe and foil tube, (B) charging a polyurethane system comprising at least one isocyanate component (a) and at least one polyol mixture (b) to the annular gap, (C) foaming the polyurethane system and allowing the same to harden, and (D) applying a layer made of at least one thermoplastic to the foil tube via extrusion, in order to form the jacketing pipe, which comprises using a multiple nozzle system having curvature corresponding to the radius of the annular gap to charge the material in step (B).
    • 本发明涉及一种用于生产绝缘管的连续方法,包括输送管,护套管,由输送管和护套管之间的至少一个聚氨酯制成的层,以及位于至少一个聚氨酯和护套管之间的箔管 ,至少包括步骤(A)在夹带系统中,提供由箔连续形成的箔管,并提供输送管,其中所述装置具有在所述箔管内的输送管,使得 在输送管和箔管之间形成环形间隙,(B)将包含至少一种异氰酸酯组分(a)和至少一种多元醇混合物(b)的聚氨酯体系填充到环形间隙,(C)使聚氨酯体系发泡并允许 相同的硬化,和(D)通过挤压将由至少一种热塑性塑料制成的层施加到箔管上,以形成护套管,其包括使用具有曲率关系的多喷嘴系统 在步骤(B)中沉积到环形间隙的半径以对材料充电。