Invention Grant
US08191261B2 Aluminum sleeve for magnetic development roller 失效
铝合金套筒用于磁性显影辊

  • Patent Title: Aluminum sleeve for magnetic development roller
  • Patent Title (中): 铝合金套筒用于磁性显影辊
  • Application No.: US12083179
    Application Date: 2006-02-14
  • Publication No.: US08191261B2
    Publication Date: 2012-06-05
  • Inventor: Kam Hung Ho
  • Applicant: Kam Hung Ho
  • Applicant Address: CN Chai Wan, Hong Kong
  • Assignee: SKC Precision Limited
  • Current Assignee: SKC Precision Limited
  • Current Assignee Address: CN Chai Wan, Hong Kong
  • Agency: David and Raymond Patent Firm
  • Agent Raymond Y. Chan
  • International Application: PCT/CN2006/000149 WO 20060214
  • International Announcement: WO2007/056903 WO 20070524
  • Main IPC: B21K1/02
  • IPC: B21K1/02
Aluminum sleeve for magnetic development roller
Abstract:
An aluminum sleeve for magnetic development rollers includes an aluminum sleeve and a shaft fixed at the ends of the aluminum sleeve for engaging with a gear, wherein an etching absorption layer is arranged on the surface of the aluminum sleeve, and a nickel plating protect layer is arranged onto the etching absorption layer. A manufacture method thereof involves forming an etching absorption layer on the surface of the aluminum sleeve via a chemical texture etching process, then forming a nickel plating protect layer onto the etching absorption layer via a nickel chemical plating process. The etching absorption layer has fine and uniform particles, and the nickel protect layer prevents the etching absorption layer from being oxidized and improves the wear resistance of the aluminum sleeve.
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