Browse Prior Art Database

Cleaning or Burnishing Flexible Magnetic Media

IP.com Disclosure Number: IPCOM000081582D
Original Publication Date: 1974-Jul-01
Included in the Prior Art Database: 2005-Feb-28
Document File: 3 page(s) / 32K

Publishing Venue

IBM

Related People

Brock, GW: AUTHOR [+3]

Abstract

Composite electrodeposited material (CEM) is produced and utilized in systems to either burnish or clean flexible magnetic media.

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Cleaning or Burnishing Flexible Magnetic Media

Composite electrodeposited material (CEM) is produced and utilized in systems to either burnish or clean flexible magnetic media.

CEM is produced in an electroplating system, by the simultaneous electrodeposition of a metal from a liquid electrolyte and the settling of additive particles through the same electrolyte onto the surface of the article to be coated. The article to be coated is conductive and is made the cathode in the electroplating system.

Prior to use for tape treatment, the CEM article is ground and lapped so that the particles at the surface are level and do not project above the surface. The electroplated matrix is then etched back. This provides a level network of particles projecting above the etched metal matrix.

This CEM material is used to burnish the media, for example during manufacturing. In one system, not shown, the CEM burnisher is a circular mandrel rotating at a relatively high rate against moving media, having a substantial angle of wrap around the mandrel. Since no particle is higher than the rest, when the CEM article is used, the particles do not tend to scratch the media.

In the system shown, the CEM article is used as a cleaning device in, for example, a tape transport system, not shown. The CEM cleaner 1 is prepared in much the same manner as the CEM burnisher described above. However, in the cleaning system, CEM coated tube 1 is rotated extremely slowly by a slow-speed timing motor, not shown, at a rate of one revolution during a work period or shift, for example. Thus, CEM cleaner 1 continuously presents a clean surfa...