DEVICE HOUSING FREE FROM ELECTROSTATIC HAZARD

摘要

PROBLEM TO BE SOLVED: To provide a device housing free from electrostatic hazard at a low cost in which and in device components of which no electrostatic hazard occurs. SOLUTION: The device housing is formed of a tourmaline alloy (3) which is made by mixing fine powder (2) of rough tourmaline into a metal primary material (1). When changes (4) of the surrounding environment of tourmaline such as heat generation, vibration or the like of a device (10) in the housing cause the electrolyzation of moisture (6) in the air by minus ions (5) constantly released by tourmaline and OH-ions (7) are generated. The OH-ions (7) and the moisture (6) in the air combine and change into hydroxyl ions (H3O2-) (8) as a surface-active substance. Since the monomolecular film of the hydroxyl ions is an insulator, the occurrence of electrostatic hazard to the device housing and device components in the housing can be prevented semipermanently and at a low cost by forming a monomolecular film (9) of hydroxyl ions as a surface-active substance and using it as an insulator on the surface of the tourmaline alloy or the surface of adjacent device components. COPYRIGHT: (C)2003,JPO