Method for the surface treatment of magnetic recording media

US4514937A · kind A · utility

Assignee

• BASF SE

Inventors

• Manfred Gehrung · Ludwigshafen, DE
• Klaus Schoettle · Heidelberg, DE
• Helmut Kreissler · Oberkirch, DE
• Peter Rudolf · Ludwigshafen, DE
• Joachim Hack · Ludwigshafen, DE
• Friedrich Anslinger · Freinsheim, DE

Key dates

• Filing date: Jan 15, 1982
• Grant date: May 7, 1985
• Expiry date: Jan 15, 2002

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B24B21/04
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A method and apparatus for burnishing the surface of magnetic recording media, wherein there is relative movement between the surface to be burnished and the abrasive member, and the abrasive member is urged against the said surface, the pressure applied being increased over a period of time or at a plurality of locations, and then being reduced again.