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    • 2. 发明专利
    • Thermal spraying apparatus
    • 热喷涂装置
    • JP2007275816A
    • 2007-10-25
    • JP2006107338
    • 2006-04-10
    • Nippon Tokushu Rozai Kk日本特殊炉材株式会社
    • NISHIOKA ATSUSHIYAMAGUCHI HIROSHIFUJIMORI HIROAKI
    • B05B7/20C23C4/00
    • PROBLEM TO BE SOLVED: To provide a thermal spraying apparatus using an ejector which can prevent or reduce abrasion due to friction of a raw powder the inside surface of the passage of the discharge duct.
      SOLUTION: The ejector of the thermal spraying apparatus sucks a raw powder from the delivery outlet of the storage mechanism for the raw powder through a flow of a pressurized carrier gas to mix the carrier gas with the raw powder so as to form a mixture. It has a container section having an inside space communicating with the delivery outlet, a spraying nozzle spraying the pressurized carrier gas into the inside space of the container section from the tip of the nozzle and a discharge duct with one end connected with the inside space of the container section which guides the mixture from its one end to the other end. The discharge duct has a throttling section in which the cross-section of the passage decreases monotonously from one end toward the downstream and an expanding section in which the cross-section of the passage increases monotonously from the upstream to the other end.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种使用喷射器的热喷涂装置,其可以防止或减少由于原料粉末与排出管道的通道的内表面的摩擦而产生的磨损。 解决方案:热喷涂装置的喷射器通过加压载气流从原料粉末储存机构的输出口吸出生粉,将载气与生粉混合,形成 混合物。 它具有容纳部分,其具有与输送出口连通的内部空间,喷嘴将喷嘴从喷嘴的尖端喷射到容器部分的内部空间中;以及排出管道,其一端与内部空间连接 所述容器部分将混合物从其一端引导到另一端。 排出管具有节流部,在该截面中,通路的截面从一端向下游单调减小,在该扩张部中,通道的横截面从上游到另一端单调增加。 版权所有(C)2008,JPO&INPIT