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Infrared Emissivity Improvement of Stainless Steel Spring

IP.com Disclosure Number: IPCOM000069213D
Original Publication Date: 1978-Apr-01
Included in the Prior Art Database: 2005-Feb-20

Publishing Venue

IBM

Related People

Authors:
Ashenmacher, GE Martin, JT Shenefiel, D [+details]

Abstract

The gram load adjustment of the stainless steel suspension assembly for a magnetic disk head may be accomplished using a short burst of infared radiation. Since the reflectivity of stainless steel is high, there has been difficulty in obtaining a speedy, reliable adjustment. By applying a black oxide coating to the stainless steel, the emissivity of the steel suspension device has been raised from about 0.19 unit to an average value of about 0.81 unit with a range of 0.77 to 0.89 unit. The standard is 0.995 unit. With the enhanced absorption characteristics, it has become more easily possible to perform a speedy and reliable adjustment using bursts of infared energy.