公开(公告)号：GB2266616B

公开(公告)日：1995-08-09

申请号：GB9307915

申请日：1993-04-16

Applicant: IBM

Inventor： KUROKI KENJI ,  HARADA YOSHINAO ,  OTA SHUNICHROH

IPC: G11B23/00 ,  G11B25/04 ,  G11B33/14

Abstract: The inside wall of a head/disk enclosure is given a surface broad enough to adsorb and release easily a large amount of water vapor. In a first embodiment, the inside surface is treated by anodic oxidation using oxalic acid. In a second embodiment, the inside surface is treated with sodium carbonate and sodium chromate. In a third embodiment, the surface was etched with acid. The water adsorption capability acts as a buffer to prevent extremes of relative humidity within the enclosure.

公开(公告)号：GB2266616A

公开(公告)日：1993-11-03

申请号：GB9307915

申请日：1993-04-16

Applicant: IBM

Inventor： KUROKI KENJI ,  HARADA YOSHINAO ,  OTA SHUNICHROH

IPC: G11B23/00 ,  G11B25/04 ,  G11B33/14

Abstract: A disk drive comprising a head/disk enclosure 10, the inside wall 10c of which is given a larger surface area to adsorb and release water vapour sufficiently to maintain the relative humidity within the drive at a desired level. The surface area of the inside wall 10c is increased by chemical treatment, anodic oxidation or acid etching.