Classifications

• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M3/00—Liquid compositions essentially based on lubricating components other than mineral lubricating oils or fatty oils and their use as lubricants; Use as lubricants of single liquid substances
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
  • B21C23/00—Extruding metal; Impact extrusion
  • B21C23/32—Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
  • B21C9/00—Cooling, heating or lubricating drawing material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
  • B21C9/00—Cooling, heating or lubricating drawing material
  • B21C9/02—Selection of compositions therefor
• • C—CHEMISTRY; METALLURGY
  • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
  • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
  • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
  • C23C22/82—After-treatment
  • C23C22/83—Chemical after-treatment
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
  • C10M2201/02—Water
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
  • C10M2201/08—Inorganic acids or salts thereof
  • C10M2201/082—Inorganic acids or salts thereof containing nitrogen
  • C10M2201/083—Inorganic acids or salts thereof containing nitrogen nitrites
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
  • C10M2201/085—Phosphorus oxides, acids or salts
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
  • C10M2207/10—Carboxylix acids; Neutral salts thereof
  • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
  • C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
  • C10M2207/123—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms polycarboxylic
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
  • C10M2207/10—Carboxylix acids; Neutral salts thereof
  • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
  • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
  • C10M2207/10—Carboxylix acids; Neutral salts thereof
  • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
  • C10M2207/129—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more carbon atoms
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
  • C10M2207/10—Carboxylix acids; Neutral salts thereof
  • C10M2207/20—Rosin acids
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
  • C10M2207/10—Carboxylix acids; Neutral salts thereof
  • C10M2207/22—Acids obtained from polymerised unsaturated acids
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
  • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
  • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
  • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
  • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
  • C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
  • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
  • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
  • C10M2215/044—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms having cycloaliphatic groups
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
  • C10M2215/22—Heterocyclic nitrogen compounds
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
  • C10M2215/22—Heterocyclic nitrogen compounds
  • C10M2215/221—Six-membered rings containing nitrogen and carbon only
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
  • C10M2215/22—Heterocyclic nitrogen compounds
  • C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
  • C10M2215/22—Heterocyclic nitrogen compounds
  • C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
  • C10M2215/226—Morpholines
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
  • C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
  • C10M2215/26—Amines
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
  • C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
  • C10M2215/30—Heterocyclic compounds
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
  • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C10M2217/046—Polyamines, i.e. macromoleculars obtained by condensation of more than eleven amine monomers
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
  • C10M2217/06—Macromolecular compounds obtained by functionalisation op polymers with a nitrogen containing compound
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
  • C10N2050/04—Aerosols
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2080/00—Special pretreatment of the material to be lubricated, e.g. phosphatising or chromatising of a metal

Definitions

• ABSTRACT OF THE DISCLOSURE A process for deforming ferrous metal surfaces wherein the metal surface is coated with a phosphate or oxalate coating and is then rinsed With an aqueous solution of an amine, which solution has a pH Within the range of about 9 to 12, prior to the application of a soap type lubricant.
• the preferred amine rinse solutions used are aqueous solutions of triethanolamine and ethylene diamine.
• This invention relates to improvements in the cold forming of metals and, more particularly, relates to an improved neutralizing rinse for use in such metal cold forming processes.
• a chemical coating such as a phosphate coating or an oxalate coating
• a chemical coating such as a phosphate coating or an oxalate coating
• this is done by contacting the metal surface with an aqueous acid phosphate or oxalate solution for a period of time sufficient to effect the formation of the desired coating.
• This contact between the chemical coating solution and the metal surface may be effected in various ways, such as by immersion, spraying, flooding, roll coating, and the like.
• a soap-type lubricant it is commonly the practice to apply to the chemically coated metal surface a soap-type lubricant.
• This lubricant material may be of the so-called reactive type which reacts with the previously applied chemical coating or it may be of the so-called nonreactive type which is principally absorbed by the chemical coating, with little or no reaction between the lubricant material and the chemical coating taking place. In either instance, there is formed on the metal surface a substantially smooth, unctuous film which forms an excellent parting layer during the metal deforming operations.
• the fatty acid or soap lubricant material is applied to the chemically coated metal surface by roll coating or by immersion.
• the metal workpieces coming from the phosphate or oxalate coating bath are still wet with the acidic coating solution. Accordingly, it is desirable to remove or neutralize the acidity on the surface of the chemically coated metal surfaces prior to the time they are contacted with the lubricant material.
• an object of the present invention to provide an improved neutralizing rinse for treating chemically coated metal surfaces prior to the application of a lubricant material.
• a further object of the present invention is to provide an improved process for treating metal surfaces prior to a metal deforming operation.
• Another object of the present invention is to provide an improved process for the cold forming of metal articles.
• the present invention includes an improvement in the process for preparing metal surfaces for deformation wherein the surface to be deformed is contacted with a chemical coating material and a lubricant material, which improvement comprises rinsing the chemically coated metal surface, prior to the application of the lubricant material, with an aqueous solution of an amine, which solution has a pH within the range of about 9 to about 12.
• the metal surface to be deformed is subjected to an aqueous acidic solution which functions to form an integrally bound chemically induced coating on the metal surface.
• aqueous acidic solution which functions to form an integrally bound chemically induced coating on the metal surface.
• solutions are conventional and known in the art and include aqueous solutions of phosphoric acid and oxalic acid, as well as aqueous solutions of zinc phosphate, manganese phosphate, one or more alkaline earth metal phosphates, alkali metal phosphates, including ammonium phosphate and zinc phosphate or manganese phosphate modified with an alkaline earth metal phosphate or alkali metal phosphate including ammonium phosphate.
• such chemical coating solutions include similar aqueous acidic solutions of oxalates, including ferric oxalate and the like.
• aqueous amine solution having a pH within the range of about 9 to about 12, which solution will be described in more detail hereinafter.
• the rinsed metal surface is contacted with a lubricant composition.
• the lubricating compositions used comprise a soap of a fatty acid as the principal lubricating material.
• the fatty acid soap may be added as such or it may be formed in situ in the composition by the reaction of an alkali metal hydroxide and a fatty acid.
• such lubricant compositions may also contain either a rosin acid or a rosin soap in addition to or in place of at least a portion of the fatty acid soap.
• the fatty acids or fatty acid soaps used contain about 8 to about 22 carbon atoms and preferably about 12 to about 18 carbon atoms.
• this is an aqueous solution of an amine and has a pH within the range from about 9 to about 12.
• the amines used must be soluble in water at least to the extent that they can form an aqueous solution having a pH within the range indicated. Additionally, they should not have an adverse effect on the chemical coating, the lubricant coating or the metal itself.
• the amines which may be used are exemplified by the lower alkyl and alkoxy amines, including mono-, di-, and triamines, as well s primary, secondary and tertiary amines, wherein the lower alkyl or alkoxy group contains about 1 to about 8 carbon atoms, and also by the cycloaliphatic amines and heterocyclic amines.
• Typical of specific amines which may be used to form the rinsing solutions are ammonia, monoethanolamine, diethanolamine, triethanolamine, morpholine, diethanolamine, triethanolamine, cyclohexylamine, ethylenediamine, piperidine, diethanoltriamine, and the like.
• triethanolamine and ethylenediamine are preferred.
• these and other amines are utilized in the aqueous rinsing solution in amounts within the range of about 0.5 to about 15 grams per liter, with amounts within the range of about 0.6 to 3 grams per liter of water being preferred.
• the rinse solution of the present invention may also contain a material capable of inhibiting the corrosion of the rinsed metal surfaces.
• exemplary of the corrosion inhibitors which may be used are the alkali metal nitrites, such as sodium nitrite. Where such corrosion inhibitors are used, they are typically included in the composition in amounts up to about 4 grams per liter with amounts within the range from about 1 to about 3 grams per liter being preferred.
• the solution may be applied to the coated metal surface by spraying onto the surface, by flooding the surface with the solution, by immersing the surface in the solution, and the like.
• the solution may be applied to the coated metal surface by spraying onto the surface, by flooding the surface with the solution, by immersing the surface in the solution, and the like.
• excellent results have been obtained by immersing the chemically coated metal surfaces in the alkaline rinse solution and accordingly, this method is generally preferred.
• the temperature of the rinse solution may vary over a wide range, for exampl from room temperature, e.g., 20 degrees Centigrade, up to and approaching the boiling point of the solution.
• the rinse solution be maintained below the boiling point to avoid excessive evaporation losses of the solution and volatilization of the amine component thereof.
• the solutions are used at a temperature within the range of about 60 to about degrees centigrade.
• the metal articles to be deformed ar first coated with the chemical coating composition as has been described hereinabove.
• the chemical coating material may be applied by immersion, roller coating, spray coating or flooding. Thereafter, the chemically coated surface is rinsed with the aqueous amine solution of the present invention having a pH within the range of about 9 to about 12. This solution is preferably applied to the chemically coated surface by immersion technique, although spraying or flooding techniques may also be used.
• the chemically coated surface has been rinsed, it is coated with the lubricant material as has been described hereinabove. Typically, these lubricants are applied by roller coating or immersion.
• the alkaline rinsing solutions of the present invention do not adversely affect either the subsequently applied lubricant material or the previously applied chemical coating. This is an important feature of the present invention, particularly since some quantities of the rinse material may be carried over into the lubricant composition.
• the fact that excellent results are obtained in terms of the drawa'bility or formability of the coated parts after treatment in the process of the present invention is further evidence of the lack of adverse effects of the present alkaline rinse solution on either the lubricant or chemical coating material.
• Example 17 The procedure of the preceding examples was repeated with the exception that the chemical coating applied to the steel sheets was an acid oxalate coating rather than a phosphate coating.
• the amine rinse solution used was an aqueous solution of triethanolamine containing 3.26 grams of triethanolamine per liter of solution.
• the rinsed panels were then immersed in a conventional fatty acid lubricant composition which contained 160 grams per liter of the fatty acid soa in a water solution and was at a temperature of about 65 degrees centigrade. Upon removing the panels from the lubricant material, it was found that there was formed on the surface of each a substantially smooth, uniform, coating which was suitable for protecting the panels during a cold forming operation.
• Example 18 The procedure of Example 17 was repeated using a number of oxalate coated steel panels measuring 4 inches by 6 inches. One-half of the number of the coated steel r panels was rinsed in an aqueous solution of triethanol- 0
• Example 19 An aqueous fatty acid soap lubricant composition containing 160 grams per liter of solution was made up and to this was added triethanolamine in an amount of 7.6 grams per liter.
• a steel panel measuring 4 x 6 inches which had previously :been coated with a conventional zinc phosphate coating rinsed in an overflowing water rinse and rinsed in a triethanolamine solution was then immersed in the lubricant composition to effect the coating of the panel with the lubricant.
• the lubricant film on the panel appeared normal and there was not seen to be any evidence of deterioration of the film clue to the presence of the relatively large quantity of triethanolamine in the lubricant composition.
• aqueous amine solution contains the amine in an amount within the range of about 0.5 to about 15 grams per liter of solution.
• a method for preparing a ferrous metal surface for a metal deforming operation which comprises forming on the metal surface an acidic chemical coating selected from the group consisting of phosphate and oxalate coatings, rinsing the thus-formed chemical coating with an aqueous solution of an amine, which solution has a pH within the range of about 9 to about 12, and thereafter, fOlll'Il ing on the thus-rinsed surface a coating of a soap-type lubricant material.
• aqueous amine solution contains the amine in an amount within the range of about 0.5 to about 15 grams per liter of solution.
• amine solution is an aqueous solution of ethylenediamine.
• a method of deforming ferrous metal which comprises forming on the surface of the metal to be deformed an acidic chemical coating selected from the group consisting of phosphate and oxalate coatings, rinsing the thus-formed chemical coating with an aqueous solution of an amine which solution has a pH within the range of about 9 to about 12, applying to the thus-rinsed surface a coating of a soap-type lubricant material, and thereafter subjecting the metal to a cold forming operation.
• aqueous amine solution contains the amine in the amount within the range of about 0.5 to about 15 grams per liter.
• amine solution is an aqueous solution of ethylenediamine.

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Materials Engineering (AREA)
• Metallurgy (AREA)
• Lubricants (AREA)
• Chemical Treatment Of Metals (AREA)

Priority Applications (7)

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Cited By (5)

Citations (2)

• 1964
  • 1964-08-10 US US388698A patent/US3380859A/en not_active Expired - Lifetime
• 1965
  • 1965-07-28 BE BE667571D patent/BE667571A/xx unknown
  • 1965-08-02 DE DE19651521862 patent/DE1521862A1/de active Pending
  • 1965-08-09 AT AT731065A patent/AT258079B/de active
  • 1965-08-09 SE SE10397/65A patent/SE329316B/xx unknown
  • 1965-08-10 ES ES0316313A patent/ES316313A1/es not_active Expired

Patent Citations (2)

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