EP1567623A2 - Tole metallique a revetement lubrifiant et a proprietes de deformation ameliorees - Google Patents

Tole metallique a revetement lubrifiant et a proprietes de deformation ameliorees

Info

Publication number
EP1567623A2
EP1567623A2 EP03782275A EP03782275A EP1567623A2 EP 1567623 A2 EP1567623 A2 EP 1567623A2 EP 03782275 A EP03782275 A EP 03782275A EP 03782275 A EP03782275 A EP 03782275A EP 1567623 A2 EP1567623 A2 EP 1567623A2
Authority
EP
European Patent Office
Prior art keywords
sheet metal
phosphoric acid
sheet
acid ester
lubricant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03782275A
Other languages
German (de)
English (en)
Inventor
Reinhard Wormuth
Dirk Liese
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp Steel Europe AG
BP Europe SE
Original Assignee
Castrol Industrie GmbH
ThyssenKrupp Stahl AG
ThyssenKrupp Steel Europe AG
BP Europe SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Castrol Industrie GmbH, ThyssenKrupp Stahl AG, ThyssenKrupp Steel Europe AG, BP Europe SE filed Critical Castrol Industrie GmbH
Priority to EP10180973A priority Critical patent/EP2311928A3/fr
Publication of EP1567623A2 publication Critical patent/EP1567623A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C23C22/05—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 using aqueous solutions
    • C23C22/68—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 using aqueous solutions using aqueous solutions with pH between 6 and 8
    • 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
    • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
    • C10M137/04—Phosphate esters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, 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
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/201—Work-pieces; preparation of the work-pieces, e.g. lubricating, coating
    • 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
    • C10M173/00—Lubricating compositions containing more than 10% water
    • C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
    • 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
    • C23C22/05—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 using aqueous solutions
    • C23C22/60—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 using aqueous solutions using alkaline aqueous solutions with pH greater than 8
    • 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
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/087—Boron 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
    • 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
    • C10M2219/066—Thiocarbamic type compounds
    • C10M2219/068—Thiocarbamate metal 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
    • 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
    • C10M2219/106—Thiadiazoles
    • 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
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • 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
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/0405—Phosphate esters used as base material
    • 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
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • 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
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/24—Metal working without essential removal of material, e.g. forming, gorging, drawing, pressing, stamping, rolling or extruding; Punching metal
    • 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
    • C10N2050/015—Dispersions of solid lubricants
    • C10N2050/02—Dispersions of solid lubricants dissolved or suspended in a carrier which subsequently evaporates to leave a lubricant coating
    • 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
    • C10N2050/023—Multi-layer lubricant coatings
    • 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
    • C10N2070/00—Specific manufacturing methods for lubricant compositions
    • 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

  • the invention relates to a lubricant-coated metal sheet or a blank thereof with improved forming properties, the lubricant being in particular an anti-corrosion oil, pre-lube and / or dry-lube.
  • the invention further relates to a method for producing such a metal sheet or sheet metal blank and the use thereof for producing metal bodies by forming, in particular by deep drawing.
  • metal sheets e.g. B. steel sheets
  • a temporary corrosion protection for storage and transport immediately after the manufacturing or coating process and before delivery to the metalworking industry. This is usually done by applying a corrosion-inhibiting lubricant immediately before winding the sheet, such as an anti-corrosion oil, a pre-lube or a dry-lube.
  • a corrosion-inhibiting lubricant immediately before winding the sheet, such as an anti-corrosion oil, a pre-lube or a dry-lube.
  • the lubricants used may contain, in addition to corrosion-inhibiting substances, other auxiliaries which are specifically tailored to the respective forming process and which improve the tribological properties of the sheet during the forming process.
  • Metal sheets coated in this way are used, for example, in the automotive industry in the production of bodies from metal sheets by deep drawing.
  • EP 0 489 105 B1 discloses a process for cold deep drawing of metal sheets in which the sheet to be deep drawn and / or the deep drawing tool is treated with an aqueous solution of an inorganic alkali metal phosphate and then deep drawn in the presence of a deep drawing oil.
  • the salt deposited on the sheet forms a soap under the pressure and temperature conditions of deep-drawing by reaction with the deep-drawing oil, which causes a reduction in the coefficient of friction.
  • a disadvantage of the process is that the alkali metal phosphate used and the soaps formed cannot be completely removed from the sheet after the deep-drawing process.
  • Lubricant composition known for non-cutting cold forming of metals, which contains a finely dispersed water-soluble inorganic salt such as borax to improve the tribological properties.
  • the disadvantage of this lubricant composition is that its lubricity is not constant because the salt is not evenly distributed over the surface, which interferes with the deep-drawing process.
  • Prelubes contain drawing aids, which are placed in the approx. 1 ⁇ m thick oil layer.
  • drawing aids which are placed in the approx. 1 ⁇ m thick oil layer.
  • only the direct steel-tool interface in the range of a few nanometers is tribologically active.
  • the invention was based on the object, a lubricant-coated metal sheet for the production of To provide metal bodies by forming with improved tribological properties.
  • the metal sheet should be easy to clean after the forming process and without leaving any residues. After all, the production of the lubricant-coated metal sheet should be simple and can be carried out in existing production plants without high capital expenditure.
  • a sheet metal or a sheet metal blank with a coating of lubricant, in particular an anti-corrosion oil, pre-lube and / or dry lube the sheet metal or the sheet metal blank comprising a layer which is applied by applying an organic phosphoric acid ester Solution is formed on the metallic surface of the sheet.
  • the lubricant-coated metal sheets according to the invention have excellent tribological properties due to their layer formed by the phosphoric acid ester. Compared to lubricant-coated metal sheets without such a layer, the metal sheets according to the invention have a reduced coefficient of friction. Finally, the metal sheets according to the invention can be easily cleaned with existing degreasing systems after the shaping process, both the lubricant-containing layer and the layer formed by the phosphoric acid ester being easily removable from the surface of the sheet without residue.
  • the metal sheets which can be used according to the invention can be any metal sheets from which metal bodies can be produced by forming, in particular by cold forming. Steel sheets are particularly suitable metal sheets.
  • the metal sheets that can be used according to the invention can be coated or uncoated.
  • an uncoated metal sheet for example, uncoated thin sheet, in particular conti-annealed uncoated thin sheet, can be used.
  • Coated metal sheets are in particular electrolytically coated sheet, in particular electrolytically galvanized sheet, and hot-dip galvanized and galvanized sheets.
  • the metal sheets preferably have a thickness of 0.05 to 5 mm, in particular 0.5 to 1.5 mm.
  • the metal sheets and sheet metal blanks according to the invention are coated with a lubricant which, at least temporarily, is intended to protect the sheets from undesired environmental influences, in particular from corrosion, after production.
  • a lubricant which, at least temporarily, is intended to protect the sheets from undesired environmental influences, in particular from corrosion, after production.
  • the choice of lubricant is not limited; Rather, any greasy or oily substances or the like as well as dry lubricants such as graphite come into question.
  • the lubricants that can be used according to the invention preferably contain corrosion inhibitors.
  • the lubricants can contain other additives, in particular additives to improve the drawing properties of the sheets.
  • Lubricants of this type for the metalworking industry are generally known to the person skilled in the art and are described, for example, in demomann “Lubricants and lubrication in metalworking operations ,,, Marcel Decker, New York, 1985, pages 81 to 105; Byers “Metalworking fluids”, Marcel Decker, New York, 1994, pages 136 to 140 and Mortier, Orszulik “Chemistry and Technology of Lubricants", 2nd edition, Chapmann & Hall, London, 1997, pages 253 to 260 ,
  • an anti-corrosion oil is used as the lubricant.
  • corrosion protection oils are well known to the person skilled in the art and usually contain a base oil with an aromatic content ⁇ 10% and a corrosion inhibitor such as, for. B. Calcium sulfonate.
  • the anti-corrosion oils can contain antioxidants to prevent oil aging and thixotropic agents to reduce dripping losses on oiled sheets.
  • a so-called pre-lube is used as the lubricant.
  • Pre-lubes are corrosion protection oils with improved drawing properties and as such are generally known to the person skilled in the art.
  • the improvement in the drawing properties is achieved by adding further additives, e.g. B. of esters.
  • a so-called dry lubricant is used as the lubricant.
  • Dry lubricants are wax and / or acrylate-based thin films with properties similar to Pre-Lubes and as such are generally known to the person skilled in the art.
  • dry lubricants offer the possibility of producing difficult drawn parts in the press shop without additional greasing. Drip drained coated sheets are completely avoided.
  • dry lubricants can be applied, for example, electrostatically or using a roll coater.
  • a layer is formed on the metallic surface of the sheet, which can be obtained by applying an organic phosphoric acid ester to the metallic surface of the sheet.
  • Organic phosphoric acid esters which can be used according to the invention are in particular compounds of the general formula
  • R for is a straight-chain or branched alkyl group having 1 to 14, in particular 1 to 8, carbon atoms
  • R ' is a straight-chain or branched alkylene group having 1 to 14, in particular 1 to 8 carbon atoms
  • R and R ' can each be the same or different and n is a number from 0 to 3, with the proviso that n is not 0 when X is exclusively hydrogen.
  • the layer formed by phosphoric acid esters contains as a further component a water-soluble organic sulfur compound and / or an organic molybdenum compound.
  • Organic sulfur compounds suitable according to the invention are in particular thiadiazoles, dithiocarbamates and / or dithiopropionates and their salts and derivatives.
  • organic sulfur compounds are, for example, sodium 2-mercaptobenzothiazole, 2,5-dimercapto-1, 3, 4-thiadiazole and salts and derivatives thereof, sodium dimethyldithiocarbamate, potassium dimethyldithiocarbamate and / or monoethanolamine dithiopropionate.
  • Organic molybdenum compounds suitable according to the invention can be obtained, for example, by reacting molybdenum trioxide and / or molybdic acid with an amine and / or alkanolamine.
  • the layer containing phosphoric acid ester contains as a further component at least one inorganic compound selected from the group consisting of polyphosphates, borates, molybdates and tungstates.
  • Inorganic compounds which are particularly suitable according to the invention are, for example, ammonium tripolyphosphate, sodium tetraborate, ammonium molybdate, sodium tungstate, potassium tungstate and / or sodium tungstate.
  • the organic phosphoric acid ester and any other components are preferably applied to the metal sheet in the form of an aqueous solution. After the application, the metal sheet is preferably dried.
  • the layer formed by phosphoric acid esters can be formed in any thickness. However, this is preferably formed as a very thin layer, in particular as a line in the nanomer range.
  • a layer containing lubricant is formed directly on the layer formed by phosphoric acid esters.
  • the lubricant-containing layer preferably contains an anti-corrosion oil, pre-lube and / or dry-lube.
  • the layer containing lubricant preferably contains an anti-corrosion oil.
  • the layer containing lubricant can be formed in any thickness. Particularly good tribological properties can be achieved if the layer containing lubricant is formed in a thickness of 0.3 to 3.0 g / m 2 , in particular 1 to 2 g / m 2 .
  • the layer containing lubricant is matched to the extent that the layer containing phosphoric acid ester is used, than that it contains components which are also contained in the layer containing phosphoric acid ester.
  • the layer containing lubricant contains at least one organic phosphoric acid ester as defined above in an amount of 0.01 to 50% by weight, in particular 0.05 to 10% by weight.
  • the lubricant-containing layer contains a water-soluble organic sulfur compound as defined above in an amount of 0.005 to 50% by weight, in particular 0.01 to 30% by weight, and / or an organic molybdenum compound in an amount contains from 0.005 to 50% by weight, in particular 0.01 to 30% by weight.
  • the lubricant contains an inorganic compound as defined above in an amount of 0.005 to 50% by weight, in particular 0.01 to 30% by weight.
  • the invention further relates to a method for producing the metal sheet or sheet metal blank according to the invention, comprising the following steps:
  • the solution containing the organic phosphoric acid ester can be applied by any measures known to the person skilled in the art, such as dipping, spraying, brushing or knife coating.
  • the solution containing phosphoric acid esters can be applied when coating the sheet in the rinsing bath of a coating system or when cooling the sheet in the bath of a water cooling system.
  • the solution containing phosphoric acid esters is preferably applied in the rinsing bath of a coating system.
  • the rinsing bath is preferably connected as a one-stage no-rinse after-treatment after the metallic coating process (e.g. electrolytic galvanizing). Further production steps can be added to the rinsing bath within a production system.
  • the metal sheet can be dried in a suitable dryer after the rinsing bath and / or subsequently coated with a lubricant (for example by electrostatic oiling).
  • the solution containing phosphoric acid esters is preferably applied as an aqueous solution.
  • the solution preferably contains the organic phosphoric acid ester in an amount of 0.1 to 15% by weight, in particular 3 to 8% by weight.
  • the pH of the solution is preferably adjusted to a value from 6.5 to 11, in particular 7.5 to 9.5.
  • the solution contains, as a further component, as described above, a water-soluble organic sulfur compound, in particular one of the compounds described above, and / or an organic molybdenum compound, in particular one of the compounds described above, and / or one of the inorganic compounds described above contains.
  • the water-soluble organic sulfur compound (s) and / or organic molybdenum compound (s) are preferably present in the solution in an amount of 1 to 50% by weight, in particular 5 to 25% by weight on the amount of phosphoric acid ester included.
  • the inorganic compound (s) are present in the solution in an amount of 1 to 50% by weight, in particular 5 to 10% by weight, based on the amount of phosphoric acid ester.
  • A is preferably used as the lubricant
  • Corrosion protection oil Pre-Lube and / or Dry-Lube used as described above.
  • the lubricant is preferred its composition is matched to the solution containing phosphoric acid esters to the extent that it contains components (e.g. organic phosphoric acid esters, water-soluble organic sulfur compounds, organic molybdenum compounds and / or inorganic compounds) as described above, which are also contained in the solution containing phosphoric acid esters.
  • the lubricant is preferably applied in an amount of 0.3 to 3 g / m 2 , in particular 1 to 2 g / m 2 .
  • the invention accordingly also includes the use of a solution containing an organic phosphoric acid ester as described above for the treatment of metal surfaces.
  • the invention further relates to an aqueous solution for the treatment of metal surfaces containing an organic phosphoric acid ester and a water-soluble organic sulfur compound and / or an organic molybdenum compound, all compounds as described above, and a concentrate for producing such a solution.
  • Electrolytically galvanized steel sheets with a thickness of 1 mm were treated by dipping with an aqueous solution of the composition given below, dried, and then coated with 1.5 g / m 2 pre-lube. The coefficient of friction was then determined in the draw bed test to determine the drawing power.
  • An electrolytically galvanized steel sheet was treated with a 5% solution of an equimolar phosphoric acid ester mixture of (CH 3 -0) PO (OH) 2 and (OH) PO (0-CH 3 ) 2 .
  • the sheet was dried and then coated with 1.5 g / m 2 pre-lube. The coefficient of friction was 88%.
  • An electrolytically galvanized steel sheet was treated with a 5% solution of an equimolar mixture of phosphoric acid esters of (C 4 H 9 -0) PO (OH) 2 and (OH) PO (0-C 4 H 9 ) 2.
  • the sheet was dried and then coated with 1.5 g / m 2 Pre-Lube. The coefficient of friction was 58%.
  • An electrolytically galvanized steel sheet was treated with a 5% solution of an equimolar phosphoric acid ester mixture of (C 8 H 17 -0) PO (OH) 2 and (OH) PO (0-C B H 17 ) 2 .
  • the sheet was dried and then coated with 1.5 g / m 2 pre-lube. The coefficient of friction was 90%.
  • An electrolytically galvanized steel sheet was treated with a 5% solution of an equimolar mixture of phosphoric acid esters of (CH 3 - [0-CH 2 CH 2 ] 3 -C 12 H 24 -0) PO (OH) 2 and (HO) PO (CH 3 - [0-CH 2 CH 2 ] 3 -C 12 H 24 -0) 2 treated.
  • the sheet was dried and then coated with 1.5 g / m 2 pre-lube. The coefficient of friction was 92%.
  • An electrolytically galvanized steel sheet was treated with a 5% sodium tetraborate solution, dried and then coated with 1.5 g / m 2 pre-lube.
  • the coefficient of friction was 90%.
  • An electrolytically galvanized steel sheet was treated with a 5% phosphoric acid solution, dried and then coated with 1.5 g / m 2 pre-lube.
  • the coefficient of friction was 95%.
  • the results show that the metal sheets according to the invention, which were treated with a phosphoric acid ester solution, have significantly improved tribological properties and an enlarged deep-drawing working range compared to metal sheets which have not been subjected to such a treatment.
  • the Metal sheets according to the invention were also easy and completely residue-free to clean in a conventional degreasing system.

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

Abstract

Tôle métallique ou pièce découpée en tôle métallique comportant un revêtement lubrifiant, en particulier une huile de protection contre la corrosion, une huile de protection contre la corrosion de type Pre-Lube ou un lubrifiant sec, ladite tôle métallique ou pièce découpée en tôle métallique comportant une couche formée par application sur la surface métallique d'une solution contenant un ester d'acide phosphorique organique. Les tôles métalliques comportant un revêtement de ce type possèdent d'excellentes propriétés tribologiques.
EP03782275A 2002-12-03 2003-12-02 Tole metallique a revetement lubrifiant et a proprietes de deformation ameliorees Withdrawn EP1567623A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10180973A EP2311928A3 (fr) 2002-12-03 2003-12-02 Solution aqueuse contenant un ester d'acide phosphorique organique pour la fabrication d'une tôle métallique revêtue de lubrifiant ayant des propriétés de déformation améliorées

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10256639A DE10256639A1 (de) 2002-12-03 2002-12-03 Schmierstoffbeschichtetes Metallblech mit verbesserten Umformeigenschaften
DE10256639 2002-12-03
PCT/EP2003/013557 WO2004050808A2 (fr) 2002-12-03 2003-12-02 Tole metallique a revetement lubrifiant et a proprietes de deformation ameliorees

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EP1567623A2 true EP1567623A2 (fr) 2005-08-31

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EP10180973A Withdrawn EP2311928A3 (fr) 2002-12-03 2003-12-02 Solution aqueuse contenant un ester d'acide phosphorique organique pour la fabrication d'une tôle métallique revêtue de lubrifiant ayant des propriétés de déformation améliorées

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US (1) US7727942B2 (fr)
EP (2) EP1567623A2 (fr)
KR (1) KR101177088B1 (fr)
CN (1) CN100572511C (fr)
AU (1) AU2003289934B2 (fr)
CA (1) CA2508716C (fr)
DE (1) DE10256639A1 (fr)
RU (1) RU2343223C2 (fr)
UA (1) UA86583C2 (fr)
WO (1) WO2004050808A2 (fr)

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Also Published As

Publication number Publication date
CN1742074A (zh) 2006-03-01
EP2311928A3 (fr) 2011-09-07
AU2003289934B2 (en) 2010-02-18
WO2004050808A2 (fr) 2004-06-17
EP2311928A2 (fr) 2011-04-20
KR101177088B1 (ko) 2012-08-27
WO2004050808A3 (fr) 2005-02-24
CN100572511C (zh) 2009-12-23
AU2003289934A1 (en) 2004-06-23
RU2343223C2 (ru) 2009-01-10
UA86583C2 (ru) 2009-05-12
DE10256639A1 (de) 2004-06-24
US20060100112A1 (en) 2006-05-11
CA2508716A1 (fr) 2004-06-17
CA2508716C (fr) 2012-07-17
RU2005120742A (ru) 2006-06-10
US7727942B2 (en) 2010-06-01
KR20050101312A (ko) 2005-10-21

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