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Method of Increasing the Lubricant Retention on Magnetic Disks

IP.com Disclosure Number: IPCOM000034676D
Original Publication Date: 1989-Apr-01
Included in the Prior Art Database: 2005-Jan-27
Document File: 2 page(s) / 27K

Publishing Venue

IBM

Related People

Goertler, J: AUTHOR [+2]

Abstract

Lubrication is a significant step in establishing long-term reliability of disk storage devices. Failure resulting from unlubed or low-lubed disks and lube spin-off is well known. Lube losses are observed during field use of the devices. Both the initial lube retention quality and the lube holding quality of the disks during operation depend on the surface morphology and topography The described method increases both of these parameters significantly. A microwave process is described briefly below. This process consists of microwave radiating either side of a buffed and washed disk for 30 seconds, thus removing any residual fluids from the pores prior to lubing. This increases the lube retention and, more importantly, the lube-holding quality of the disk.

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Method of Increasing the Lubricant Retention on Magnetic Disks

Lubrication is a significant step in establishing long-term reliability of disk storage devices. Failure resulting from unlubed or low-lubed disks and lube spin- off is well known. Lube losses are observed during field use of the devices. Both the initial lube retention quality and the lube holding quality of the disks during operation depend on the surface morphology and topography The described method increases both of these parameters significantly. A microwave process is described briefly below. This process consists of microwave radiating either side of a buffed and washed disk for 30 seconds, thus removing any residual fluids from the pores prior to lubing. This increases the lube retention and, more importantly, the lube-holding quality of the disk. Microwave radiation just prior to lube application leads to a definite increase in lube weight. However, an even more important aspect is that the lube is deeply anchored in the pores, so that the tendency of lube spin-off is considerably reduced. During microwave radiation, residual fluids in the pores are absorbed. They are instantly volatilized without any significant increase in disk temperature. In the standard process, the residual fluids occupy the bottom of pores and devices.

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