METHOD AND APPARATUS FOR FLAME SPRAYING THERMOPLASTIC POWDERS
    155.
    发明公开
    METHOD AND APPARATUS FOR FLAME SPRAYING THERMOPLASTIC POWDERS 有权
    用于火焰喷射热塑性粉末的方法和设备

    公开(公告)号:EP3057713A1

    公开(公告)日:2016-08-24

    申请号:EP14802152.0

    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: 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,并且将由惰性气体输送的所述热塑性粉末通过入口(4),压缩空气或氮气流通过入口(5) 和液化石油气通过入口(6)流动,然后通过在喷枪的混合装置(1)内部成形的相应分离的排放室(7,9,12)。 然后将热塑性粉末在所得的流体(30)中投射到待涂布制品的加热表面上,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)朝向流出混合装置(1)的所得流(30)会聚喷射,从而给出所得流(30)基本扁平的扇形。 压缩空气的会聚流(31,32)由位于压缩空气喷嘴(13)的第一环与燃料喷嘴(14)的外环之间的倾斜通道(17,18)喷射。

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