发明授权
US06245391B1 Powder fluidized bed and coating method utilizing a circulating powder stream 失效
粉末流化床和使用循环粉末流的涂布方法

  • 专利标题: Powder fluidized bed and coating method utilizing a circulating powder stream
  • 专利标题(中): 粉末流化床和使用循环粉末流的涂布方法
  • 申请号: US09367488
    申请日: 1999-08-17
  • 公开(公告)号: US06245391B1
    公开(公告)日: 2001-06-12
  • 发明人: Hiroki KawaiMasahiro Yamamoto
  • 申请人: Hiroki KawaiMasahiro Yamamoto
  • 优先权: JP9-357588 19971225
  • 主分类号: B05D124
  • IPC分类号: B05D124
Powder fluidized bed and coating method utilizing a circulating powder stream
摘要:
This invention pertains to a powder coating apparatus and a method for using the powder coating apparatus. The apparatus includes a booth that defines a coating space, a holder to hold an object within the coating space, electrodes positioned within the coating space, a power supplier to supply a voltage between the electrodes, a coating material blower to blow powder coating material into the coating space, and structure to form a circulating stream of the powder coating material within the coating space. The method includes blowing powder coating material into the coating space, whereby an object held by the holder becomes coated with the powder coating material. While the powder coating material is being blown into the coating space air is also blown in the coating space, whereby the powder coating material is carried in a stream that flows along the object in a first direction and then along the electrodes in an opposite second direction.
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