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    • 7. 发明授权
    • Insulating material for automotive exhaust line tubing and manifolds
    • 用于汽车排气管路和歧管的绝缘材料
    • US08627853B1
    • 2014-01-14
    • US11893710
    • 2007-08-17
    • Joseph A. FernandoKenneth B. MillerChad E. Garvey
    • Joseph A. FernandoKenneth B. MillerChad E. Garvey
    • F16L9/14
    • F01N13/14F16L59/04F16L59/147
    • An insulated double-walled pipe including an inner pipe, an outer pipe surrounding the inner pipe to provide a substantially uniform annular gap between the inner and outer pipes, and optionally an annular flange connected to at least one end of the inner and outer pipe, wherein the annular gap is substantially filled with an insulating paste comprising a fiber component, an inorganic binder component, and optionally a vermiculite component, a filler component, and an organic binder component. A method for preparing the insulated double-walled pipe includes providing a double-walled pipe having an annular space between the walls; introducing an insulating paste material into the annular space; freezing the insulating paste material in the pipe; bending the pipe; and thawing and gelling the paste material.
    • 一种绝缘双壁管,包括内管,围绕内管的外管,以在内管和外管之间提供基本均匀的环形间隙,以及可选地连接到内管和外管的至少一端的环形凸缘, 其中所述环形间隙基本上填充有包含纤维组分,无机粘合剂组分和任选的蛭石组分,填料组分和有机粘合剂组分的绝缘浆料。 制备绝缘双壁管的方法包括提供一种在壁之间具有环形空间的双壁管; 将绝缘膏材料引入到所述环形空间中; 冻结管道中的绝缘膏材料; 弯曲管道; 并融化和胶凝糊料。