LUBRICATING METHOD IN COLD-WORKING IRON OR ITS ALLOY

PURPOSE:To impart sufficient lubricity to the iron or its alloy to be cold-worked by treating the iron with a processing soln. wherein the concns. of the ions of iron, calcium, zinc, phosphate, and nitrate and the weight ratio are specified at a specified temp., and then treating the iron with a lub...

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Bibliographische Detailangaben
Hauptverfasser:	SAWAZAKI YOSHIHIKO, MATSUSHIMA YASUNOBU, KAWAKAMI TAKASHI, NAGAEI YOSHIO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL FORGE FURNACES FORGING FUELS HAMMERING INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LUBRICANTS LUBRICATING COMPOSITIONS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PRESSING METAL PUNCHING METAL RIVETING SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION 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 impart sufficient lubricity to the iron or its alloy to be cold-worked by treating the iron with a processing soln. wherein the concns. of the ions of iron, calcium, zinc, phosphate, and nitrate and the weight ratio are specified at a specified temp., and then treating the iron with a lubricant. CONSTITUTION:Iron or its alloy is previously treated with a phosphating soln., then treated with a lubricant, and then cold-worked. The phosphating soln. contains 0.01-2.0% iron ion, 0.5-3.5% calcium ion, 0.3-2.5% zinc ion, 0.5-5.0% phosphate ion, and 0.7-12.0% nitrate ion, the weight ratio of the iron ion to the zinc ion is controlled to 0.005-3.0, and the weight ratio of the calcium ion to the zinc ion is controlled to 0.5-4.0. The treatment is carried out at a relatively low temp. of 35-65 deg.C. By this method, the iron or its alloy can be energy-savingly cold-worked and lubricated, and the lubricity capable of sufficiently withstanding the cold working under severe conditions can be imparted.