Lubricant compositions for forging or extrusion
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United States of America Patent
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Sep 6, 1983
Grant Date -
N/A
app pub date -
Sep 11, 1981
filing date -
Sep 19, 1980
priority date (Note) -
Expired
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Abstract
A lubricant composition for forging or extrusion comprising a mixture of: (A) at least one compound selected from among phosphoric acid and salts thereof, (B) at least one compound selected from among boric acid and salts thereof, (C) at least one compound selected from among carbonates, nitrates, sulfates and hydroxides of alkali metals, and (D) a phyllosilicate, the mixture containing the compounds (A) to (C) in amounts, calculated as oxides, of 40 to 44 mole % of P.sub.2 O.sub.5, up to 9 mole % of B.sub.2 O.sub.3 and 30 to 60 mole % of M.sub.2 O wherein M is an alkali metal, respectively.
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