Title:
BASE MEMBER AND MANUFACTURING METHOD THEREOF, SPINDLE MOTOR, AND HARD DISK DRIVE
Document Type and Number:
Japanese Patent JP2022071331
Kind Code:
A
Abstract:
To provide is a base member capable of maintaining a state even after sealing a cavity exposed on a surface of the base member and suppressing release of dust into the inside of a device.SOLUTION: A base member that is a part of a housing of a hard disk drive device includes: a base body, which is a cast product; a machined surface 13a, which is made by machining a part of an inner side of the housing of the base body; impregnating agent I filled in a cavity B exposed on the machined surface 13a; and a coating film F that covers a surface including the machined surface 13a of the base body.SELECTED DRAWING: Figure 6
Inventors:
SUZUKI AKIHIKO
AKAHORI TADASHI
AKAHORI TADASHI
Application Number:
JP2020180229A
Publication Date:
May 16, 2022
Filing Date:
October 28, 2020
Export Citation:
Assignee:
MINEBEAMITSUMI INC
International Classes:
G11B33/12; B22D17/00; B22D29/00; G11B25/04; G11B33/14; H02K5/04
Attorney, Agent or Firm:
Mikio Suenari