LUBRICATION METHOD FOR COLD DRAWING

PURPOSE:To improve the surface grade of a work piece after cold working, by applying a particular lubricating oil to a pickled wire, rod or pipe of carbon steel or alloy steel prior to cold drawing. CONSTITUTION:5-40pts. dialkyl polysulfide (A) of the formula (wherein R is a 6-12C alkyl; and x is 3-...

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Hauptverfasser:	SAWAZAKI YOSHIHIKO, MORIKAWA TAKASHI, TANIFUJI NOZOMI, TOTSUGI KOJI, NAGAEI YOSHIO
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL CHEMISTRY FUELS INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS LUBRICANTS LUBRICATING COMPOSITIONS MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PUNCHING METAL TECHNICAL GASES CONTAINING CARBON MONOXIDE TRANSPORTING USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Beschreibung
Zusammenfassung:	PURPOSE:To improve the surface grade of a work piece after cold working, by applying a particular lubricating oil to a pickled wire, rod or pipe of carbon steel or alloy steel prior to cold drawing. CONSTITUTION:5-40pts. dialkyl polysulfide (A) of the formula (wherein R is a 6-12C alkyl; and x is 3-6) which has a sulfur content of at least 30wt.% and 20-70pts. member selected from among a compd. of a fat or oil having a sulfur content of at least 30wt.% with an olefin, a higher ester compd. of an unsatd. higher fatty acid having a sulfur content of at least 15wt.% with an unsatd. higher alcohol and a compd. of a higher ester compd. having a sulfur content of at least 15% with an olefin are mixed together, thereby preparing a thickener. This thickener is mixed with a fat or oil, a synthetic oil and a higher fatty acid (amine salt) to prepare a lubricating oil having a viscosity of 100-3,000cps (20 deg.C). The lubricating oil thus obtd. is applied to a pickled wire, rod or pipe of carbon steel or alloy steel, washed with water, neutralized and dried, followed by cold drawing.