METHOD AND APPARATUS FOR FLAME COATING TUBULAR ELEMENTS WITH THERMOPLASTIC POWDERS

    公开(公告)号:US20210276040A1

    公开(公告)日:2021-09-09

    申请号:US17261376

    申请日:2019-07-19

    Applicant: IBIX S.R.L.

    Abstract: The method for flame coating tubular elements provides for arranging a said tubular element (2) to be coated at a coating station, providing an applicator unit (3), operating in the coating station, in an inactive configuration, spaced from the tubular element (2), the applicator unit (3) carrying at least one thermoplastic powders flame applicator device (4) and being alternatively operable between the inactive configuration and an active configuration, approached radially to the tubular element (2). After having brought the applicator unit (3) towards the tubular element (2), the method provides for operating the same unit (3) in the active configuration, so as to peripherally engage the element (2) itself. The applicator device (4) is turned on, the thermoplastic powders are fed and the applicator device (4) is operated in motion around and/or along the tubular element (2) so as to flame coating it with a controlled flow of thermoplastic powders.

    METHOD AND APPARATUS FOR FLAME SPRAYING THERMOPLASTIC POWDERS
    2.
    发明申请
    METHOD AND APPARATUS FOR FLAME SPRAYING THERMOPLASTIC POWDERS 审中-公开
    火焰喷涂热塑性粉末的方法和装置

    公开(公告)号:US20160281203A1

    公开(公告)日:2016-09-29

    申请号:US15036166

    申请日:2014-11-12

    Applicant: IBIX S.R.L.

    Abstract: The method for spraying thermoplastic powders provides to feed a flow of compressed air and/or nitrogen and a liquefied petroleum gas through respective separated discharge chambers (9, 12), shaped inside a mixing device (1) of a spray gun (100), the separated discharge chambers (9, 12) being in communication with a mixing chamber (15). Then a flame is ignited at the mixing chamber, through a flame ignition device (30) connected with the gun (100), said device comprising a spark ignition device (31, 310), and a conductor element (32) associated with the mixing device (1) and connected with the spark ignition device (31, 310). The thermoplastic powders are mixed with a transport inert gas, and fed through a further discharge chamber (7) communicating with the mixing chamber (15). Then the spray gun is operated to spray the thermoplastic powders through the flame onto the surface of the article to be coated, to cause the melting of the same powders.

    Abstract translation: 用于喷射热塑性粉末的方法提供通过形成在喷枪(100)的混合装置(1)内的各自分离的排放室(9,12)来供给压缩空气和/或氮气和液化石油气流, 分离的排出室(9,12)与混合室(15)连通。 然后,通过与枪(100)连接的火焰点火装置(30)在混合室处点燃火焰,所述装置包括火花点火装置(31,310)和与混合物相关联的导体元件(32) 装置(1)并与火花点火装置(31,310)连接。 将热塑性粉末与运输惰性气体混合,并通过与混合室(15)连通的另一排放室(7)进料。 然后操作喷枪将热塑性粉末通过火焰喷射到待涂覆的制品的表面上,以引起相同粉末的熔化。

    METHOD AND APPARATUS FOR FLAME SPRAYING THERMOPLASTIC POWDERS
    3.
    发明申请
    METHOD AND APPARATUS FOR FLAME SPRAYING THERMOPLASTIC POWDERS 审中-公开
    火焰喷涂热塑性粉末的方法和装置

    公开(公告)号:US20160256879A1

    公开(公告)日:2016-09-08

    申请号:US15029058

    申请日:2014-10-13

    Applicant: IBIX S.R.L.

    Abstract: The method for flame spraying thermoplastic powders provides to heat the article to be coated at a suitable working temperature and to feed the said thermoplastic powders, transported by an inert gas, a flow of compressed air and a flow of liquefied petroleum gas through respective separated discharge chambers (7, 9, 12), shaped inside a mixing device (1) of a spray gun. The thermoplastic powders are then projected, in a resulting flow (30), on the heated surface of the article to be coated, to determine the melting of the same powders at their contact with said heated surface. At least one couple of flows (31, 32) of compressed air is sprayed converging towards the resulting flow (30) flowing out of the mixing device (1), giving the resulting flow (30) a substantially flattened fan shape.

    Abstract translation: 用于火焰喷涂热塑性粉末的方法提供了在合适的工作温度下加热待涂覆的制品,并且通过惰性气体,压缩空气流和液化石油气流通过相应的分离放电 形成在喷枪的混合装置(1)内的腔室(7,9,12)。 然后将热塑性粉末在所得到的流动(30)中放置在待涂覆的制品的加热表面上,以确定在与所述加热表面接触时相同粉末的熔化。 压缩空气的至少一对流(31,32)被喷射,朝向从混合装置(1)流出的所得流(30)会聚,从而使所得到的流(30)基本上呈扁平的扇形。

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