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A heat shrink continuous tape is used to provide both retentive force for a head/disk enclosure and to seal it from contamination.
English (United States)
This text was extracted from a PDF file.
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Heat Shrink Head/disk Enclosure Seal
A heat shrink continuous tape is used to provide both retentive force for a
head/disk enclosure and to seal it from contamination.
In the figure, a head/disk enclosure is indicated in cross section generally at 10. A cover 12 is placed on a base casting 14 to contact an annular ridge 16 of
the base 14. In prior devices, a seal is provided by mechanically clamping a
flexible rubber material between the cover 12 and ridge 16. The clamping
introduced particles into the clean environment required to assemble disk files
and caused some distortion of the base casting 14.
In the present invention, a band 20 is placed on the outside of the enclosure
10 to cover the interface between the cover 12 and base 14. The band can be
an adhesive strip which provides retentive force without distortion of the base
As an alternative to the adhesive strip, a continuous adhesive backed shrink
fit band is similarly placed on the enclosure. Heating of the band causes it to
both seal the enclosure from outside contamination with little contamination
caused by assembly and provide retentive force without distortion.