To provide a manufacturing method of a foaming duct capable of suppressing drop of dew condensation water.SOLUTION: There is provided a manufacturing method of a foaming duct having a molding process and a rough surfacing process, in which foaming parison is molded and a foam molded body is formed in the molding process, rough surfacing is conducted in at least a part of a rough surfacing region of an outer surface of the foam molded body in the rough surfacing process, and the rough surfacing is conducted so that adhesion energy of water drop in the rough surfacing region is 0.030 mJ/mor more.SELECTED DRAWING: Figure 1

    【課題】結露水の滴下を抑制することができる、発泡ダクトの製造方法を提供する。【解決手段】本発明によれば、発泡ダクトの製造方法であって、成形工程と、粗面化工程を備え、前記成形工程では、発泡パリソンを成形して、発泡成形体を形成し、前記粗面化工程では、前記発泡成形体の外表面の少なくとも一部の粗面化領域において粗面化を行い、前記粗面化は、前記粗面化領域での水滴の付着エネルギーが0.030mJ/m2以上になるように行われる、方法が提供される。【選択図】図1


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    Title :

    MANUFACTURING METHOD OF FOAMING DUCT


    Additional title:

    発泡ダクトの製造方法


    Contributors:

    Publication date :

    2020-03-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    C08J Verarbeitung , WORKING-UP / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht



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