WO2002000964A1 - Lubrifiant aqueux et procede de traitement de surfaces metalliques - Google Patents

Lubrifiant aqueux et procede de traitement de surfaces metalliques Download PDF

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Publication number
WO2002000964A1
WO2002000964A1 PCT/US2001/020637 US0120637W WO0200964A1 WO 2002000964 A1 WO2002000964 A1 WO 2002000964A1 US 0120637 W US0120637 W US 0120637W WO 0200964 A1 WO0200964 A1 WO 0200964A1
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WIPO (PCT)
Prior art keywords
waterborne
resin
lubricant
molybdenum disulfide
waterborne lubricant
Prior art date
Application number
PCT/US2001/020637
Other languages
English (en)
Inventor
Ryousuke Kawagoshi
Masaaki Fujii
Masayuki Yoshida
Original Assignee
Henkel Corporation
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Publication date
Application filed by Henkel Corporation filed Critical Henkel Corporation
Priority to AU2001271588A priority Critical patent/AU2001271588A1/en
Priority to US10/312,288 priority patent/US20040062869A1/en
Publication of WO2002000964A1 publication Critical patent/WO2002000964A1/fr

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    • 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
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/02—Emulsion paints including aerosols
    • C09D5/024—Emulsion paints including aerosols characterised by the additives
    • 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
    • C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
    • C10M125/22—Compounds containing sulfur, selenium or tellurium
    • 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
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/22—Polyesters
    • 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
    • C10M149/00—Lubricating compositions characterised by the additive being a macromolecular compound containing nitrogen
    • C10M149/12—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M149/14—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds a condensation reaction being involved
    • C10M149/18—Polyamides
    • 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
    • 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
    • C10M2201/06—Metal compounds
    • C10M2201/065—Sulfides; Selenides; Tellurides
    • 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
    • C10M2201/06—Metal compounds
    • C10M2201/065—Sulfides; Selenides; Tellurides
    • C10M2201/066—Molybdenum sulfide
    • 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
    • C10M2201/06—Metal compounds
    • C10M2201/065—Sulfides; Selenides; Tellurides
    • C10M2201/066—Molybdenum sulfide
    • C10M2201/0663—Molybdenum sulfide used as base material
    • 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
    • C10M2201/084—Inorganic acids or salts thereof containing sulfur, selenium or tellurium
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/101—Condensation polymers of aldehydes or ketones and phenols, e.g. Also polyoxyalkylene ether 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/102—Polyesters
    • 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
    • C10M2217/042—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds between the nitrogen-containing monomer and an aldehyde or ketone
    • 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
    • C10M2217/043—Mannich bases
    • 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
    • C10M2217/044—Polyamides
    • 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
    • C10M2217/045—Polyureas; Polyurethanes
    • 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
    • C10M2217/045—Polyureas; Polyurethanes
    • C10M2217/0453—Polyureas; Polyurethanes 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
    • 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
    • C10N2050/01—Emulsions, colloids, or micelles
    • 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
    • C10N2080/00—Special pretreatment of the material to be lubricated, e.g. phosphatising or chromatising of a metal

Definitions

  • This invention relates to a waterborne lubricant for use for the formation on metal surfaces of coatings that exhibit an excellent sliding lubrication performance.
  • the invention also relates to a surface treatment method that uses said waterborne lubricant. More particularly, the invention relates to a waterborne lubricant comprising molybdenum disulfide and a resin that has particular features and to a method for treating metal surfaces using said waterborne lubricant.
  • Molybdenum disulfide has long been used as a solid lubricant, and even at present it is still used in a variety of applications, most notably for various automotive components.
  • This lubricant has typically been employed by dissolving it and polyamideimide (binder) in an organic solvent, applying the resulting solution by spraying, and thereafter baking.
  • polyamideimide binder
  • a strong desire has arisen in recent years for development of a waterborne lubricant that would dispense with the use of organic solvent.
  • Manganese phosphate treatment became a practical reality in the 1940s with its use as an antirust treatment for steel.
  • Manganese phosphate coatings later entered into use as coatings for sliding applications. This occurred because manganese phosphate coatings are harder than other conversion coatings, exhibit an excellent wear resistance, have a good initial run-in behavior, and, since they are porous, can endow a material with the ability to retain lubricating oil
  • the solid lubricating film is preferably formed of molybdenum disulfide, it provides no description whatever of the binder for the lubricant that forms the solid lubricating layer.
  • An antiwear member is described in Japanese Laid Open (Kokai or Unexamined) Patent Application No. Hei 9-184079 (184,079/1997).
  • a manganese phosphate layer is provided on at least the upper and lower surfaces of the body of a compression ring.
  • a lubrication layer is also provided comprising a dispersion of molybdenum disulfide with an average particle size of 1 - 2 ⁇ m in the gaps between the crystal grains of the manganese disulfide.
  • Preferred for use as the binder in the disclosed method are polyamideimide, epoxy, polyimide, and polytetrafluoroethylene; however, no mention is made of the mechanical properties of these resins.
  • Polyamideimide is used as the binder in the examples, and presumably application is carried out from an organic solvent system.
  • an object of this invention is to provide a novel waterborne lubricant that can form coatings on metal surfaces, inexpensively and with little environmental pollution load, wherein said coatings exhibit very good sliding properties.
  • An additional object of this invention is to provide a surface treatment method that uses the novel waterborne lubricant.
  • the inventors carried out extensive investigations into means for solving the problems that encumber the prior art as described above. As a result of these investigations, the inventors discovered a waterborne lubricant comprising molybdenum disulfide with a particular particle size and resin with particular mechanical properties, and also discovered a surface treatment method that uses this lubricant. The inventors additionally discovered a method for forming a special composite coating that comprises a manganese phosphate coating layer and a lubricating layer. This invention was achieved based on these discoveries.
  • this invention relates to a waterborne lubricant that characteristically comprises molybdenum disulfide having an average particle diameter of 0.5 to 10 ⁇ m and a waterborne resin that has a weight average molecular weight of 5,000 to 50,000, a rupture strength of at least
  • the waterborne resin is preferably a polyester resin or waterborne urethane resin.
  • This invention also relates to a method for treating metal surfaces that characteristically comprises:
  • the inventive waterborne lubricant can be prepared by dispersing molybdenum disulfide and waterborne resin in water.
  • the molybdenum disulfide used in the inventive waterborne lubricant should have an average particle size in the range of 0.5 to 10 ⁇ m: excellent sliding properties are obtained by the use of molybdenum disulfide in this range.
  • the waterborne resin used in the inventive waterborne lubricant is a resin that can be used when dissolved or dispersed in water.
  • This resin can be exemplified by polyester resins, polyurethane resins, and polyphenol resins with polyester resins and waterborne urethane resins (dispersions) being preferred.
  • the polyester resin can be, for example, polyester resin synthesized using a sulfonated terephthalic acid or isophthalic acid in the copolymerization components.
  • the urethane resin can be, for example, waterborne polyurethane resin based on a polyol such as a polyether polyol or polyester polyol and polyisocyanate such as tolidine diisocyanate or tolylene diisocyanate. Resin should be used that has a rupture strength of
  • the method for treating metal surfaces using the inventive waterborne lubricant begins with effecting contact between the inventive waterborne lubricant and a clean metal surface in order to induce the formation thereon of a coating layer of the waterborne lubricant that
  • the procedure for effecting contact between the waterborne lubricant and metal is not critical, and immersion, spray application, and so forth can be used. Contact can be carried out using a concentrate of the waterborne lubricant or using the diluted treatment bath. Surfactant may also be used in order to induce uniform application of the molybdenum disulfide.
  • concentrations of the molybdenum disulfide and resin in the treatment bath are not critical, but a concentration of about 0.1 to 1% by weight is normally preferred for each component. At low concentrations below 0.1 %, the specified deposition cannot be obtained without repeating application a number of times, which lengthens the process and is economically disadvantageous. The use of concentrations in excess of 1 % is disadvantageous because such concentrations lead to a deterioration in the stability of the treatment bath.
  • Contact may be followed by baking/drying at 100 to 250°C in order to form a lubricating coating layer.
  • the drying temperature should be in this range since the goals of baking/drying are to eliminate the water, to cause the resin used to flow (i.e., to soften and thereby smooth out the resin), and to obtain a higher level of adhesion.
  • the range of 150 to 200°C is even more preferred.
  • the formation of a manganese phosphate coating on the metal surface in advance of lubricant deposition is preferred based on such considerations as the sliding lubrication performance, adherence, and corrosion resistance.
  • the seizing load declines at a coating thickness below 1 ⁇ m, while coating thicknesses in excess of 15 ⁇ m generally afford no additional change in the properties and are uneconomical.
  • the load resistance is typically unacceptable at below 0.5 ⁇ m, while the coefficient of friction (COF) usually becomes undesirably high at values in excess of 30 ⁇ m.
  • a surface roughness (Rz) below 0.5 ⁇ m is normally undesirable due to the low adherence that occurs at such values.
  • Rz surface roughness
  • the methods used to measure the coating thickness, crystal size, surface roughness, molybdenum deposition, and carbon deposition specified by this invention will now be considered.
  • the coating thickness of the manganese phosphate coating was measured by cutting the member after conversion treatment and inspecting the cross section with a metallographic microscope.
  • the crystal size was measured by inspection of the surface using a commercial scanning electron microscope (SEM), while the surface roughness was measured using a commercial surface roughness meter.
  • the molybdenum deposition was determined using a commercial fluorescent X-ray analyzer (XRF).
  • XRF fluorescent X-ray analyzer
  • a working curve of intensity-versus- amount of deposition was constructed by carrying out multiple measurements on samples having known, different amounts of molybdenum deposition.
  • the sample afforded by the inventive surface treatment method was then cut into a sample of suitable size (diameter about 3 cm) on which the actual measurement was carried out.
  • the measured intensity was converted into molybdenum deposition using the working curve.
  • the carbon deposition was measured using a commercial surface carbon analyzer (TOC).
  • TOC commercial surface carbon analyzer
  • the sample was obtained by cutting a sample treated by the inventive surface treatment method to the appropriate size (about 20 to
  • the sample was heated in the surface carbon analyzer in order to oxidize and thereby volatilize the carbon present on the surface, and the resulting gas was determined using an infrared absorption analyzer (IR).
  • IR infrared absorption analyzer
  • Any measurement conditions may be used that induce oxidation and volatilization of the surface carbon, but preferred measurement conditions are generally about 400°C for 5 minutes.
  • Cleaning was carried out by dipping for 3 minutes at 60°C in a 2% aqueous solution of a commercial cleaner (FINECLEANER 4360, registered trademark and product of Nihon Parkerizing Co., Ltd.) followed by a water rinse with tapwater for 30 seconds.
  • FINECLEANER 4360 registered trademark and product of Nihon Parkerizing Co., Ltd.
  • Manganese phosphate treatment After the cleaning step, the material was dipped first in the 0.3% aqueous solution of a commercial surface conditioner (PREPALENE 55 in Example 3 and PREPALENE VM in Example 4 and Comparative Example 2, both registered trademarks and products of Nihon Parkerizing Co., Ltd.) and was then dipped for 5 minutes at 95°C in a 15% aqueous solution of a commercial manganese phosphate conversion agent (PALPHOS M1A, registered trademark and product of Nihon Parkerizing Co., Ltd.). Conversion treatment was followed by a water rinse and drying.
  • a commercial surface conditioner PREPALENE 55 in Example 3 and PREPALENE VM in Example 4 and Comparative Example 2, both registered trademarks and products of Nihon Parkerizing Co., Ltd.
  • PALPHOS M1A commercial manganese phosphate conversion agent
  • the cleaned steel sample was first coated with surface treatment bath 1 as described below and was then baked for 10 minutes at 160°C.
  • Treatment bath 1 was prepared by dispersing the molybdenum disulfide particles in an aqueous dispersion of the polyester resin.
  • the cleaned steel sample was first coated with surface treatment bath 2 as described below and was then baked for 10 minutes at 200°C.
  • Treatment bath 2 was prepared by dispersing the molybdenum disulfide particles in an aqueous dispersion of the polyester resin.
  • the cleaned steel sample was subjected to the manganese phosphate treatment described above, then coated with surface treatment bath 3, and finally baked for 5 minutes at 220°C.
  • Treatment bath 3 was prepared by dispersing the molybdenum disulfide particles in an aqueous dispersion of the urethane resin.
  • the cleaned steel sample was immersed for 10 minutes in surface treatment bath 4 (heated to 65°C) and then washed with water and dried. This was followed by coating with the surface treatment bath 3 described in Example 3 and baking for 10 minutes at 180°C.
  • Treatment bath 4 was prepared by dispersing the molybdenum disulfide particles in an aqueous dispersion of the urethane resin.
  • Table 1 reports the following values for Examples 1 through 4 and Comparative Examples 1 and 2: coating thickness, particle size, and roughness of the manganese phosphate layer; amount of molybdenum and amount of carbon in the lubricating coating layer formed by surface treatment; and an evaluation of the sliding lubrication.
  • the sliding lubrication test was carried out using the following method.
  • the present invention accrues the highly desirable effects of providing metal surfaces with a coating that exhibits a very good sliding lubrication performance and of doing so at low cost and with a low environmental pollution load.
  • the invention achieves these effects by formulating a waterborne lubricant using a special waterborne resin and using this waterborne lubricant to treat metal surfaces.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Lubricants (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

L'invention concerne un lubrifiant aqueux qui permet de former des revêtements sur des surfaces métalliques à peu de frais et avec une moindre pollution de l'environnement. Lesdits revêtements présentent des propriétés lubrifiantes remarquables. L'invention concerne également un procédé de traitement de surface qui fait appel audit lubrifiant aqueux. Ce dernier contient du disulfure de molybdène et une résine aqueuse présentant des caractéristiques spécifiques.
PCT/US2001/020637 2000-06-28 2001-06-28 Lubrifiant aqueux et procede de traitement de surfaces metalliques WO2002000964A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2001271588A AU2001271588A1 (en) 2000-06-28 2001-06-28 Waterborne lubricant and method for treating metal surfaces
US10/312,288 US20040062869A1 (en) 2000-06-28 2001-06-28 Waterborne lubricant and method for treating metal surfaces

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000194377A JP2002012885A (ja) 2000-06-28 2000-06-28 水系潤滑剤及び金属材料の表面処理方法
JP2000/194377 2000-06-28

Publications (1)

Publication Number Publication Date
WO2002000964A1 true WO2002000964A1 (fr) 2002-01-03

Family

ID=18693217

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/020637 WO2002000964A1 (fr) 2000-06-28 2001-06-28 Lubrifiant aqueux et procede de traitement de surfaces metalliques

Country Status (6)

Country Link
JP (1) JP2002012885A (fr)
KR (1) KR20020000709A (fr)
CN (1) CN1332232A (fr)
AU (1) AU2001271588A1 (fr)
TW (1) TW593749B (fr)
WO (1) WO2002000964A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4671609B2 (ja) * 2004-01-26 2011-04-20 日本パーカライジング株式会社 潤滑性水系ポリウレタン樹脂組成物、それを用いる亜鉛系メッキ鋼板の表面潤滑処理方法及びその表面処理鋼板
JP2008069413A (ja) * 2006-09-14 2008-03-27 Nippon Steel & Sumikin Stainless Steel Corp 潤滑鋼板
CN101205499B (zh) * 2007-11-28 2010-06-09 周贤言 一种铝镁合金拉丝润滑剂
CN105315741A (zh) * 2014-08-05 2016-02-10 东莞金太阳研磨股份有限公司 一种水性环保防堵塞涂层
KR102243970B1 (ko) * 2020-09-01 2021-04-26 장기태 복합체 및 그 제조방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3051586A (en) * 1958-01-27 1962-08-28 Electrofilm Inc Solid lubricant film resistant to corrosion
US4683804A (en) * 1985-01-18 1987-08-04 Taiho Kogyo Kabushiki Kaisha Swash plate type compressor shoe
US5034430A (en) * 1988-09-09 1991-07-23 Ciba-Geigy Corporation Novel compositions containing molybdenum disulfide
US5399192A (en) * 1990-03-02 1995-03-21 Nippon Paint Co., Ltd. Chemicals and method for forming cured coat having lubricating and hydrophilic properties

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3051586A (en) * 1958-01-27 1962-08-28 Electrofilm Inc Solid lubricant film resistant to corrosion
US4683804A (en) * 1985-01-18 1987-08-04 Taiho Kogyo Kabushiki Kaisha Swash plate type compressor shoe
US5034430A (en) * 1988-09-09 1991-07-23 Ciba-Geigy Corporation Novel compositions containing molybdenum disulfide
US5399192A (en) * 1990-03-02 1995-03-21 Nippon Paint Co., Ltd. Chemicals and method for forming cured coat having lubricating and hydrophilic properties

Also Published As

Publication number Publication date
AU2001271588A1 (en) 2002-01-08
KR20020000709A (ko) 2002-01-05
CN1332232A (zh) 2002-01-23
JP2002012885A (ja) 2002-01-15
TW593749B (en) 2004-06-21

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