Lubricating oil compositions used in metal forming operations
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United States of America Patent
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Sep 22, 1998
Grant Date -
N/A
app pub date -
Mar 15, 1996
filing date -
Mar 15, 1996
priority date (Note) -
Expired
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Abstract
A superior lubricating oil composition which can be used in metal forming operations is made up of an .alpha.-olefin and a hydrotreated naphthenic distillate. This lubricating oil composition is particularly suited for use in a vacuum de-oiling brazing process in that it improves tool life, reduces residue deposits on forming dies and completely vaporizes at a low vacuum brazing temperature.
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