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Novel Technique to Determine Surface Lubrication with Force Measurement Device

IP.com Disclosure Number: IPCOM000122501D
Original Publication Date: 1991-Dec-01
Included in the Prior Art Database: 2005-Apr-04
Document File: 1 page(s) / 32K

Publishing Venue

IBM

Related People

Bayer, RG: AUTHOR [+3]

Abstract

The basic concept is to measure the force necessary to remove an adhesive media from the area in question. A force gauge fitted with double sided tape on the measuring stub is used for determining presence of lubricity. The stub/adhesive is placed on the area in question with a prescribed amount of force (Fig. 1A). The amount of force required to pull the tape from that area designates the degree of lubricity (Fig. 1B). This technique has been tested using lubricants used in a ZIF system; 1) pentaerythritol ester and 2) branched perfluoropolyether molecular structures. Findings were that where there is little or no adhesion, lubrication on the card tab is sufficient.

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Novel Technique to Determine Surface Lubrication with Force Measurement
Device

      The basic concept is to measure the force necessary to
remove an adhesive media from the area in question.  A force gauge
fitted with double sided tape on the measuring stub is used for
determining presence of lubricity.  The stub/adhesive is placed on
the area in question with a prescribed amount of force (Fig. 1A).
The amount of force required to pull the tape from that area
designates the degree of lubricity (Fig. 1B).  This technique has
been tested using lubricants used in a ZIF system; 1) pentaerythritol
ester and 2) branched perfluoropolyether molecular structures.
Findings were that where there is little or no adhesion, lubrication
on the card tab is sufficient.

      Actual dial values are noted in 5g increments, 500g as dial
upper limit (not shown to scale in figures).

      Figure 1A - Force gauge with tape being placed in contact with
surface to be measured with a measurable force (push-on force
measured).

      Figure 1B - Force gauge with tape in contact with surface,
where force required to pull tape from surface is measured (pull-off
force measured).