Magnetic Head Wear Investigation

Michael Rettinger

For a given magnetic head, head life is proportional to the film pressure on the head produced by the film tension, kinetic friction coefficient of the film and the angle subtended by the film on the head (film-wrap angle). For a given film and film-wrap angle, magnetic head life is proportional to the film pressure on the head produced by the film tension, the square root of the core radius, the 3/2 power of the pole face depth, the core width, and in some undetermined manner to the core hardness. More briefly, one may say that (for a constant film and film-wrap angle) head life is proportional to the film pressure, volume of removable core material, and core hardness.

Print ISSN
Published
1955-04
Content type
Information
DOI
10.5594/J04827
Download the PDF