WO2017029801A1 - Multilayer sliding member - Google Patents

Multilayer sliding member Download PDF

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Publication number
WO2017029801A1
WO2017029801A1 PCT/JP2016/003717 JP2016003717W WO2017029801A1 WO 2017029801 A1 WO2017029801 A1 WO 2017029801A1 JP 2016003717 W JP2016003717 W JP 2016003717W WO 2017029801 A1 WO2017029801 A1 WO 2017029801A1
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WO
WIPO (PCT)
Prior art keywords
mass
steel plate
sliding member
nickel
powder
Prior art date
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PCT/JP2016/003717
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French (fr)
Japanese (ja)
Inventor
康弘 白坂
大野　正人
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オイレス工業株式会社
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Publication of WO2017029801A1 publication Critical patent/WO2017029801A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
    • B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • 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
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics

Definitions

  • the present invention provides a back metal having a steel plate and a porous sintered alloy layer integrally bonded to one surface of the back metal, or in addition to the pores and one surface of the porous sintered alloy layer.
  • the present invention relates to a multi-layer sliding member that is filled and fixed and has a coating layer containing at least a synthetic resin, and more specifically, contains an extreme pressure additive containing chlorine or sulfur in a sliding portion of an internal combustion engine or a transmission.
  • the present invention relates to a multilayer sliding member suitable for use in the presence of lubricating oil.
  • Multi-layer sliding comprising a back plate made of a steel plate and a porous sintered alloy layer formed integrally with one side of the back plate and made of a bronze-based copper alloy such as bronze, lead bronze or phosphor bronze A member has been proposed (see Patent Document 1 to Patent Document 3), and in order to improve the wear resistance, seizure resistance and conformability of this porous sintered alloy layer, for example, phosphorus, Proposals have been made to add aluminum, bismuth or the like (see Patent Documents 4 and 5).
  • the multi-layer sliding member is used under many different conditions such as dry friction conditions or in oil or oil lubrication conditions. Under extreme pressure conditions where the surface pressure at the surface is high and seizure due to the rupture of the oil film is likely to occur, and contains an extreme pressure additive containing chlorine, particularly sulfur (S), phosphorus (P), etc. When used in oil or under oil-lubricated conditions, it contains copper (Cu) of the porous sintered alloy layer exposed on the cutting surface or sliding surface of the multi-layer sliding member, and as an extreme pressure additive.
  • S sulfur
  • P phosphorus
  • the present invention has been made in view of the above-mentioned points, and the object thereof is sulfidation corrosion even in oil or lubricating conditions using a lubricating oil containing an extreme pressure additive containing sulfur and the like. It is an object of the present invention to provide a multilayer sliding member provided with a porous sintered alloy layer that can suppress the progress of the above and has excellent frictional wear characteristics and load resistance.
  • the multi-layer sliding member of the present invention has a back plate having a steel plate, and is integrally joined to one surface of the back plate, and 30 to 60% by mass of iron or iron-based alloy and a nickel-phosphorus alloy 40 to 70. And a porous sintered alloy layer containing mass%.
  • the porous sintered alloy layer contains 40 to 70% by mass of nickel-phosphorus alloy with respect to 30 to 60% by mass of iron or iron-based alloy. Even in the oil using the lubricating oil containing the agent or in the oil lubrication condition, it exhibits excellent frictional wear and load resistance and does not cause problems such as sulfidation corrosion.
  • the porous sintered alloy layer includes a matrix phase made of a sintered alloy of iron or an iron-base alloy and a dispersed phase of a nickel-phosphorus alloy crystallized at a grain boundary of the matrix phase.
  • a dispersed phase improves the wear resistance and load resistance of the porous sintered alloy layer.
  • the amount of the dispersed phase of the nickel-phosphorus alloy determines the quality of the friction and wear characteristics and load resistance of the porous sintered alloy layer.
  • the nickel-phosphorus alloy is less than 40% by mass, the grain boundary of the matrix phase The proportion of crystallization of the dispersed phase of the nickel-phosphorous alloy is small, and it is difficult to expect improvement in the friction and wear characteristics and load resistance of the porous sintered alloy layer.
  • the nickel-phosphorous alloy exceeds 70% by mass, However, the crystallization ratio of the dispersed phase of the nickel-phosphorus alloy to the grain boundary of the matrix phase is excessively increased, and there is a possibility that the frictional wear characteristics and the load resistance of the porous sintered alloy layer are deteriorated.
  • the nickel-phosphorus alloy is preferably composed of 10 to 12% by mass of phosphorus and the balance nickel, and the balance may contain inevitable impurities.
  • the eutectic point of the nickel-11 mass% phosphorus alloy is 875 ° C. Therefore, when the Ni-10-12 mass% phosphor alloy powder is blended In this case, the porous sintered alloy layer can be obtained by sintering the nickel-10 to 12% by mass phosphorus alloy powder at or near the eutectic point.
  • an atomized nickel-phosphorus alloy powder having a particle size passing through a 350 mesh (44 ⁇ m) sieve is preferably used as the nickel-10 to 12% by mass phosphorus alloy powder.
  • the steel plate is made of a ferritic, austenitic or martensitic stainless (SUS) steel plate, and as such a stainless steel plate, a cold rolled stainless steel plate is preferable, Among these, as JIS steel types of ferritic stainless steel plates, for example, SUS405, SUS410L, SUS429, SUS430, SUS434, SUS436L, SUS444, SUS447J1, etc., and as JIS steel types of austenitic stainless steel plates, for example, SUS301, SUS302, SUS303.
  • SUS405 ferritic, austenitic or martensitic stainless (SUS) steel plate
  • JIS steel types of ferritic stainless steel plates for example, SUS405, SUS410L, SUS429, SUS430, SUS434, SUS436L, SUS444, SUS447J1, etc.
  • JIS steel types of austenitic stainless steel plates for example, SUS301, SUS302, SUS303.
  • JIS grades bets stainless steel sheet, for example, a SUS403, SUS410, SUS416, SUS420JI, SUS431, SUS440A like.
  • one side of the back plate may be one side of the stainless steel plate, and the back plate further comprises a nickel film covering one side of the stainless steel plate.
  • one side of the back plate may be one side of the nickel coating.
  • a stainless steel sheet is covered with a passive film and has a stable corrosion resistance, so it does not require a nickel film, but this passive film is extremely thin and fragile.
  • a nickel film by nickel plating may be formed on the stainless steel plate.
  • the steel plate is from a general structural rolled steel plate (SS400 or the like) specified in JISG3101 or a cold rolled steel plate (SPCC or the like) specified in JISG3141.
  • SS400 or the like general structural rolled steel plate
  • SPCC or the like cold rolled steel plate
  • one surface of the back metal may be one surface of this general structural rolled steel plate or cold rolled steel plate
  • the back metal may further include a nickel film covering one surface of the general structural rolled steel sheet or cold rolled steel sheet.
  • a back metal further provided with a nickel film
  • one of the back metal The surface may be one surface of this nickel coating.
  • the thickness of the above nickel film is preferably about 3 to 50 ⁇ m.
  • reduced iron powder or atomized iron powder that passes through a 200-mesh (74 ⁇ m) sieve is suitably used as the iron powder that is the iron component of the porous sintered alloy layer.
  • iron powder there are few pores and specific surface area is small, whereas in reduced iron powder, there are relatively many pores and many irregularities on the surface, and the specific surface area is higher than atomized iron powder. Since it has a spherical shape and is excellent in dispersibility and fluidity, it is suitably used for the iron component of the porous sintered alloy layer in the present invention.
  • examples of the iron-based alloy powder that becomes the iron-based alloy component of the porous sintered alloy layer include chromium such as SUS405, SUS410L, SUS429, SUS430, SUS434, SUS436L, SUS444, and SUS447J1.
  • Ferritic steel (SUS) powder containing 10 to 20% by mass of (Cr) and the balance being iron and inevitable impurities SUS301, SUS302, SUS303, SUS304, SUS305, SUS309, SUS310, SUS316, SUS316L, SUS317, SUS321, An austenitic steel powder containing 16 to 22% by mass of chromium such as SUS347 and SUS384, 3 to 16% by mass of nickel and the balance being iron and inevitable impurities, or SUS403 and SUS41 , SUS416, SUS420, SUS431, SUS440 and the like, martensitic steel powder containing 13 to 18% by mass of chromium and the balance of iron and inevitable impurities is preferably used.
  • Austenitic steel containing a considerable amount of nickel from the viewpoint of acid corrosion resistance since it can improve the corrosion resistance against non-oxidizing acids (sulfuric acid, sulfurous acid, hydrochloric acid, etc.) by improving the forming ability and the repairing ability.
  • a powder is preferred.
  • These steel powders may be produced, for example, by any method such as an atomization method (water atomization method, gas atomization method, centrifugal atomization method, etc.), reduction method, pulverization method, etc., among these, produced by the atomization method.
  • Steel powder is preferred.
  • the atomizing method can efficiently produce steel powder with a small average particle diameter, and the steel powder produced by the atomizing method has a spherical shape that is relatively close to a true sphere.
  • the steel powder preferably has a particle size that passes through a 200 mesh (74 ⁇ m) sieve similar to the particle size of the iron powder.
  • the multi-layer sliding member of the present invention is a coating containing at least a synthetic resin and filled and fixed to the pores and one surface of the porous sintered alloy layer in order to impart low friction to the porous sintered alloy layer. It may further comprise a layer.
  • Such a synthetic resin comprises at least one main component selected from fluorine resins such as polytetrafluoroethylene resin, polyacetal resin, polyamide resin, polyphenylene sulfide resin, polyetheretherketone resin and polyamideimide resin, and improved wear resistance. And at least one additional component selected from a polyimide resin, a baked phenol resin, a polyphenylene sulfone resin, and an oxybenzoyl polyester resin as an agent, and in addition to such an additional component, the coating layer includes a phosphate, At least one inorganic material selected from barium sulfate and a solid lubricant may be included.
  • fluorine resins such as polytetrafluoroethylene resin, polyacetal resin, polyamide resin, polyphenylene sulfide resin, polyetheretherketone resin and polyamideimide resin, and improved wear resistance.
  • the coating layer is composed of 1 to 10% by weight of one or more additional components selected from polyimide resin, calcined phenol resin, polyphenylene sulfone resin and oxybenzoyl polyester resin, which are organic materials, and a polytetrafluoroethylene resin. It may contain the main component of the resin and 1 to 30% by mass of an inorganic material phosphate and 5 to 40% by mass of barium sulfate, and 1 to 25 volumes of an oxybenzoyl polyester resin that is an organic material. And a main component of a synthetic resin composed of a polytetrafluoroethylene resin and an additional component of 1 to 15% by volume of phosphate and 1 to 20% by volume of barium sulfate, which are inorganic materials. Derived from the remaining polyacetal resin as an additive and saturated fatty acids and polyhydric alcohols as additional components Valence alcohol fatty acid ester 0.5 to 5 wt% and jojoba oil 0.5-3% by weight and may contain.
  • the porous sintered alloy layer preferably has a thickness of 0.1 to 0.5 mm, particularly 0.3 to 0.4 mm, and the coating layer containing a synthetic resin has a thickness of 0 to It has a thickness of 0.02 to 0.1 mm.
  • the multilayer sliding member according to the present invention is cut to an appropriate size and is provided as a flat sliding plate or a porous sintered alloy layer, in addition to the porous sintered alloy layer, a coating layer is provided. It is used as a cylindrical wound bush that is round-bent with the coating layer inside.
  • the progress of sulfidation corrosion can be suppressed and frictional wear characteristics can be suppressed even in an oil or in an oil lubrication condition using a lubricant containing an extreme pressure additive containing sulfur or the like.
  • the multilayer sliding member excellent in load resistance can be provided.
  • FIG. 1 is a longitudinal sectional explanatory view of a preferred example of an embodiment of a multilayer sliding member of the present invention.
  • FIG. 2 is a longitudinal sectional explanatory view of a preferred example of another embodiment of the multilayer sliding member of the present invention.
  • FIG. 3 is an explanatory perspective view for explaining the thrust test method.
  • a stainless steel plate made of a continuous strip having a thickness of 0.3 to 1.0 mm provided as a hoop material is prepared by being wound in a coil shape.
  • the stainless steel plate to be prepared is not necessarily a continuous strip, but may be a strip cut to an appropriate length.
  • a multilayer sliding member 1 is produced in which a porous sintered alloy layer 3 including a sintered body of an iron-base alloy and a nickel-phosphorus alloy is integrally joined.
  • the iron powder or iron-base alloy powder in the mixed powder dispersed to a uniform thickness on one surface of the back metal 2 constitutes the matrix phase of the porous sintered alloy layer 3 and is made of nickel-10-12 mass% phosphorus.
  • the alloy powder enters the gaps between the particles of the matrix-phase iron powder or iron-base alloy powder and comes into contact with the iron powder or iron-base alloy powder.
  • the nickel component contained in the nickel-phosphorus alloy powder diffuses to one surface of the back metal 2 to alloy its interface, and one of the back metal 2
  • the porous sintered alloy layer 3 is bonded to the surface, the nickel component diffuses into the particles of the iron powder or the iron-based alloy powder through the contact portion, and the nickel component is locally concentrated in the vicinity of the contact portion.
  • the diffusion region contained in is formed.
  • the diffusion region melts to form a liquid phase when the eutectic temperature (875 ° C.) of the nickel-phosphorus alloy is exceeded, and this liquid phase is formed in the gaps between the particles of the matrix phase.
  • Intrusions form bridges, and the formation of the bridges causes the matrix phase to be appropriately rearranged so as to fill the gaps between them, and the sintering reaction is promoted because the sintering is performed via the liquid phase.
  • matrix-phase iron powder or iron-base alloy powder is closely bonded and sintered.
  • the porous sintered alloy layer 3 in the multilayer sliding member 1 includes a matrix phase of iron or an iron-based alloy and a dispersed phase of a nickel-phosphorus alloy crystallized at the grain boundary of the matrix phase.
  • polytetrafluoroethylene resin 5 to 40% by mass of barium sulfate, 1 to 30% by mass of phosphate, and one or more organic compounds selected from polyimide resin, calcined phenol resin and polyphenylene sulfone resin
  • an additional component of 1 to 10% by mass of the material is blended, supplied to a Henschel mixer, and stirred and mixed to prepare a mixture containing the polytetrafluoroethylene resin, barium sulfate, phosphate and the additional component of the organic material.
  • a synthetic resin composition is prepared by blending 15 to 30 parts by weight of a petroleum solvent with 100 parts by weight of the mixture and mixing at a temperature (15 ° C.) below the room temperature transition point of the polytetrafluoroethylene resin.
  • This synthetic resin composition is sprayed and supplied onto one surface of the porous sintered alloy layer 3 integrally joined to one surface of the back metal 2, so that the thickness of the synthetic resin composition becomes a predetermined thickness.
  • the synthetic resin composition is filled and fixed to the pores and one surface of the porous sintered alloy layer 3 by rolling with a roller.
  • the synthetic resin composition from which the solvent has been removed by holding it in a hot air drying furnace heated to a temperature of 200 to 250 ° C.
  • a multi-layer sliding member 5 provided with a coating layer 4 including a pore of the porous sintered alloy layer 3 integrally bonded to the surface and a synthetic resin filled and fixed on one surface thereof.
  • Example 1 After preparing a strip obtained by cutting a cold rolled steel plate (SPCC) having a thickness of 0.65 mm into dimensions of 170 mm in width and 600 mm in length as the back metal 2, electrolytic nickel plating is applied to the entire surface including one surface of the strip. A nickel film having a thickness of 20 ⁇ m was applied.
  • SPCC cold rolled steel plate
  • a multilayer sliding member 1 in which a porous sintered alloy layer 3 having a thickness of 0.3 mm made of a sintered alloy of a mixed powder containing 10% by mass and 40% by mass of a nickel-11% phosphorus alloy powder is integrally joined.
  • Example 2 In the mixed powder, the same as Example 1 except that the atomized iron powder was 50 mass% and the atomized nickel-11 mass% phosphorus alloy powder was 50 mass% (nickel 44.5 mass%, phosphorus 5.5 mass%).
  • a porous sintered alloy comprising a sintered powder of a mixed powder containing 50% by mass of iron powder having a thickness of 0.3 mm and 50% by mass of nickel-11% by mass and phosphorus alloy powder having a thickness of 0.3 mm on one surface of the nickel film.
  • a multilayer sliding member 1 in which the layers 3 were joined integrally was produced.
  • Example 3 A strip obtained by cutting a ferritic stainless steel plate (SUS430) having a thickness of 0.65 mm into a size having a width of 170 mm and a length of 600 mm was prepared as the backing metal 2.
  • SUS430 ferritic stainless steel plate
  • Atomized ferrite stainless steel powder having a particle size that passes through a 200 mesh (74 ⁇ m) sieve SUS410L: carbon 0.017 mass%, silicon 0.47 mass%, manganese 0.18 mass%, phosphorus 0.01 mass%, sulfur 0 0.005 mass%, chromium 12.4 mass%, balance iron
  • SUS410L carbon 0.017 mass%, silicon 0.47 mass%, manganese 0.18 mass%, phosphorus 0.01 mass%, sulfur 0 0.005 mass%, chromium 12.4 mass%, balance iron
  • a mixed powder was prepared by the same method as in Example 1, and on one side of the strip made of a ferritic stainless steel plate as the backing metal 2, a ferrite system having a thickness of 0.3 mm was formed in the same manner as in Example 1 below.
  • a multi-layer sliding member 1 is prepared by integrally joining a porous sintered alloy
  • Example 4 As the backing metal 2, the same strip as in Example 3 was prepared.
  • One surface of a strip made of steel plate is porous sintered by a sintered powder of a mixed powder containing 50% by mass of a ferritic stainless steel powder having a thickness of 0.3 mm and 50% by mass of nickel-11% by mass phosphorus alloy powder.
  • a multilayer sliding member 1 in which the gold layer 3 was integrally joined was produced.
  • Example 5 The same nickel coating as in Example 1 was applied to the entire surface including one surface of the strip as the back metal 2 similar to that in Example 3.
  • a mixed powder containing 60% by mass of ferritic stainless steel powder and 40% by mass of nickel-11% by mass phosphorus alloy powder as in Example 3 was prepared in the same manner as in Example 1 and was made of a sintered alloy of this mixed powder.
  • a multilayer sliding member 1 in which the porous sintered alloy layer 3 was integrally joined to one surface of the nickel film by the same method as in Example 1 was produced.
  • Example 6 A strip as the back metal 2 was prepared in the same manner as in Example 3 except that a ferritic stainless steel plate (SUS434) was used.
  • Atomized ferrite stainless powder with a particle size passing through a 200 mesh (74 ⁇ m) sieve SUS434: carbon 0.01% by mass, silicon 0.14% by mass, manganese 0.10% by mass, phosphorus 0.01% by mass, sulfur 0 .005 mass%, chromium 17.6 mass%, balance iron
  • 40 mass% and atomized nickel-11 mass% phosphorous alloy powder 60 mass% similar to that of Example 1 were produced in the same manner as in Example 1.
  • 40% by mass of ferritic stainless steel powder having a thickness of 0.3 mm and 11% by mass of nickel are formed on one surface of a strip made of a ferritic stainless steel plate as the backing metal 2 with the mixed powder.
  • a multilayer sliding member 1 in which a porous sintered alloy layer 3 made of a sintered powder of a mixed powder containing 60% by mass of phosphorus alloy powder was integrally joined was produced.
  • Example 7 A strip as the back metal 2 was prepared in the same manner as in Example 3 except that an austenitic stainless steel plate (SUS304) was used.
  • SUS304 austenitic stainless steel plate
  • Atomized austenitic stainless powder with a particle size passing through a 200 mesh (74 ⁇ m) sieve SUS304L: carbon 0.020% by mass, silicon 0.87% by mass, manganese 0.20% by mass, phosphorus 0.03% by mass, sulfur 0 0.02% by mass, nickel 10.24% by mass, chromium 18.60% by mass, balance iron
  • 30% by mass atomized nickel of 11% by mass as in Example 1, phosphorus alloy powder 70% by mass (nickel 62.3) 1% of the strip of austenitic stainless steel sheet as the back metal 2 in the same manner as in Example 3 with the mixed powder produced by the same method as in Example 1.
  • a multi-sintered sintered alloy comprising 30% by mass of austenitic stainless steel powder having a thickness of 0.3 mm and 70% by mass of nickel-11% by mass phosphorus alloy powder on the surface.
  • Quality sintered alloy layer 3 was manufactured multilayered sliding member 1 which is integrally joined.
  • Example 8 As the backing metal 2, the same strip as in Example 7 was prepared.
  • a porous sintered alloy comprising a sintered powder of a mixed powder containing 40% by mass of austenitic stainless steel powder having a thickness of 0.3 mm and 60% by mass of nickel-11% by mass phosphorus alloy powder on one surface of a strip of steel plate A multilayer sliding member 1 in which the layers 3 were joined integrally was produced.
  • Example 9 As the backing metal 2, the same strip as in Example 8 was prepared.
  • a porous sintered alloy comprising a sintered powder of a mixed powder containing 50% by mass of austenitic stainless steel powder having a thickness of 0.3 mm and 50% by mass of nickel-11% by mass phosphorus alloy powder on one surface of a strip of steel plate A multilayer sliding member 1 in which the layers 3 were joined integrally was produced.
  • Example 10 As the backing metal 2, the same strip as in Example 8 was prepared.
  • Austenitic stainless steel as the back metal 2 in the same manner as in Example 7 except that 60% by mass of the atomized austenitic stainless steel powder as in Example 7 and 40% by mass of the atomized nickel-11 mass% phosphorus alloy powder were used.
  • a porous sintered alloy comprising a sintered powder of a mixed powder containing 60% by mass of austenitic stainless steel powder having a thickness of 0.3 mm and 40% by mass of nickel-11% phosphorus alloy powder on one surface of a strip of steel plate A multilayer sliding member 1 in which the layers 3 were joined integrally was produced.
  • Example 11 A strip as a back metal 2 similar to Example 3 was prepared except that an austenitic stainless steel plate (SUS316L) was used.
  • SUS316L austenitic stainless steel plate
  • Atomized austenitic stainless steel powder (SUS316L: carbon 0.025% by mass, silicon 0.78% by mass, manganese 0.24% by mass, phosphorus 0.023% by mass, sulfur 0 with a particle size passing through a 200 mesh (74 ⁇ m) sieve .004% by mass, nickel 12.60% by mass, chromium 16.10% by mass, molybdenum 2.47% by mass, balance iron 40% by mass, and the same atomized nickel-11% by mass phosphorus alloy powder 60 as in Example 1.
  • an austenite having a thickness of 0.3 mm is formed on one surface of the strip of an austenitic stainless steel plate as the back metal 2 in the same manner as in Example 3.
  • Porous sintered alloy layer 3 made of a sintered alloy of a mixed powder containing 40% by mass of stainless steel powder and 60% by mass of nickel-11% by mass phosphorus alloy powder To prepare a multilayered sliding member 1 which is integrally joined.
  • Example 12 A strip as a back metal 2 similar to Example 3 was prepared except that a martensitic stainless steel plate (SUS410) was used.
  • SUS410 martensitic stainless steel plate
  • Atomized martensitic stainless steel powder with a particle size passing through a 200 mesh (74 ⁇ m) sieve SUS410: carbon 0.007% by mass, silicon 0.76% by mass, manganese 0.15% by mass, nickel 0.15% by mass, chromium 11. 50% by mass, balance iron
  • a mixed powder containing 40% by mass of a martensitic stainless steel powder having a thickness of 0.3 mm and 60% by mass of nickel-11% by mass phosphorus alloy powder is formed on one surface of a strip of a martensitic stainless steel plate as the backing metal 2.
  • a multilayer sliding member 1 in which a porous sintered alloy layer 3 made of a sintered alloy was integrally joined was produced.
  • Example 13 A multilayer sliding member 1 having the same porous sintered alloy layer 3 as in Example 8 was used.
  • the dried synthetic resin composition was rolled with a roller at a pressure of 400 kgf / cm 2 to obtain a porous sintered alloy.
  • the coating layer 4 was heated and baked at 370 ° C. for 10 minutes in a heating furnace, and then again pressed with a roller.
  • a porous sintered alloy layer 3 made of a sintered alloy of a mixed powder containing 60% by mass of alloy powder is integrally joined, and the pores of the porous sintered alloy layer 3 and 15% by mass of barium sulfate on one surface thereof.
  • a multilayer sliding member 5 was prepared.
  • the sintered body of iron powder is made of ferritic stainless steel powder in the porous sintered alloy layer 3 of Examples 3 to 6.
  • the sintered body is an austenitic stainless powder sintered body, and in the porous sintered alloy layer 3 of Example 12, the martensite system. It was confirmed by micrographs that the sintered bodies of the stainless steel powder each constituted a matrix phase, and the liquid phase of the nickel-11 mass% phosphorus alloy powder constituted a dispersed phase crystallized at the grain boundary of the matrix phase. .
  • Comparative Example 1 A strip having a nickel coating on one surface similar to that of Example 1 was used as a backing metal 2.
  • Comparative Example 2 A multilayer sliding member 1 similar to Comparative Example 1 is further provided with a coating layer 4 similar to that of Example 13 on the pores and one surface of the porous sintered alloy layer 3 of the multilayer sliding member 1. A layer sliding member 5 was produced.
  • the cylindrical body 12 While applying a predetermined load in the direction A perpendicular to the surface 13 from the cylindrical body 12 as the counterpart material to the one surface 13 of the plate bearing test piece 11, the cylindrical body 12 is connected to the axial center 14 of the cylindrical body 12. Was rotated in the direction B, and the coefficient of friction between the plate-shaped bearing test piece 11 and the cylindrical body 12 and the wear amount of the surface 13 after the 20-hour test were measured.
  • the friction coefficients shown in Tables 1 to 4 are values at the time of stable sliding after the start of the test.
  • the multilayer sliding member of Comparative Example 1 showed a high friction coefficient of 0.30 under the condition of a surface pressure of 200 kgf / cm 2
  • the multilayer sliding member of Comparative Example 2 was Since the wear amount was a very large value of 260 ⁇ m under the condition of a surface pressure of 200 kgf / cm 2 , further tests were stopped.
  • the multi-layer sliding members 1 and 5 according to the present invention have excellent sliding properties even under high surface pressure conditions of 200 to 500 kgf / cm 2 in the lubricating oil. It can be seen that it has dynamic characteristics and greatly improved load bearing capability.

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Abstract

A multilayered sliding member (1) provided with a back plate (2) having a steel plate, and porous sintered alloy layer (3) integrally joined to one surface of the back plate (2) and containing 30-60 mass% of iron or iron base alloy and 40-70 mass% of a nickel-phosphorus alloy.

Description

複層摺動部材Multi-layer sliding member
　本発明は、鋼板を有した裏金とこの裏金の一方の面に一体的に接合された多孔質焼結合金層とを又はこれらに加えて更に多孔質焼結合金層の孔隙及び一方の面に充填固着されていると共に少なくとも合成樹脂を含む被覆層を備えた複層摺動部材に関し、更に詳しくは、内燃機関又はトランスミッション等の摺動部において塩素又は硫黄等を含む極圧添加剤を含有する潤滑油の存在下で用いられて好適な複層摺動部材に関する。 The present invention provides a back metal having a steel plate and a porous sintered alloy layer integrally bonded to one surface of the back metal, or in addition to the pores and one surface of the porous sintered alloy layer. The present invention relates to a multi-layer sliding member that is filled and fixed and has a coating layer containing at least a synthetic resin, and more specifically, contains an extreme pressure additive containing chlorine or sulfur in a sliding portion of an internal combustion engine or a transmission. The present invention relates to a multilayer sliding member suitable for use in the presence of lubricating oil.
　鋼板からなる裏金と、この裏金の一方の面に一体的に形成されていると共に青銅、鉛青銅又は燐青銅等の青銅系銅合金からなる多孔質焼結合金層とを具備した複層摺動部材が提案されており（特許文献１から特許文献３参照）、この多孔質焼結合金層の耐摩耗性、耐焼付性及びなじみ性を向上させるべく、多孔質焼結合金層に例えば燐、アルミニウム及びビスマス等を添加したりする提案もなされている（特許文献４及び５参照）。 Multi-layer sliding comprising a back plate made of a steel plate and a porous sintered alloy layer formed integrally with one side of the back plate and made of a bronze-based copper alloy such as bronze, lead bronze or phosphor bronze A member has been proposed (see Patent Document 1 to Patent Document 3), and in order to improve the wear resistance, seizure resistance and conformability of this porous sintered alloy layer, for example, phosphorus, Proposals have been made to add aluminum, bismuth or the like (see Patent Documents 4 and 5).
特開昭５０－４３００６号公報Japanese Patent Laid-Open No. 50-43006 特開昭５３－１１７１４９号公報JP-A-53-117149 特開平１１－１７３３３１号公報Japanese Patent Laid-Open No. 11-173331 特開平１０－３３０８６８号公報Japanese Patent Laid-Open No. 10-330868 特開２００５－１６３０７４号公報JP 2005-163074 A
　ところで、複層摺動部材は、多くの異なった条件下、例えば乾燥摩擦条件又は油中若しくは油潤滑条件等の条件下で使用されるが、油中又は油潤滑条件下の使用、特に摩擦面での面圧が高く、油膜の破断に起因する焼付きを生じやすい極圧条件下であって、塩素、硫黄（Ｓ）、燐（Ｐ）等、特に硫黄を含む極圧添加剤を含有する油中又は油潤滑条件下の使用では、複層摺動部材の切削加工による切削面又は摺動面に露出した多孔質焼結合金層の銅（Ｃｕ）と、極圧添加剤として含有されている潤滑油中の硫黄との反応により硫化物（Ｃｕ２Ｓ、ＣｕＳ等）の生成に伴う青銅系銅合金からなる多孔質焼結合金層に硫化腐食を生じさせ、この生成された硫化物は、多孔質焼結合金層の強度を低下させ、かつ被覆層の摩耗を促進させる。 By the way, the multi-layer sliding member is used under many different conditions such as dry friction conditions or in oil or oil lubrication conditions. Under extreme pressure conditions where the surface pressure at the surface is high and seizure due to the rupture of the oil film is likely to occur, and contains an extreme pressure additive containing chlorine, particularly sulfur (S), phosphorus (P), etc. When used in oil or under oil-lubricated conditions, it contains copper (Cu) of the porous sintered alloy layer exposed on the cutting surface or sliding surface of the multi-layer sliding member, and as an extreme pressure additive. Caused by the reaction with sulfur in the lubricating oil, sulfide corrosion occurs in the porous sintered alloy layer made of bronze-based copper alloy accompanying the formation of sulfide (Cu 2 S, CuS, etc.). , Reducing the strength of the porous sintered alloy layer and promoting wear of the coating layer.
　本発明は、前記諸点に鑑みてなされたものであり、その目的とするところは、硫黄等を含む極圧添加剤を含有する潤滑油を用いた油中又は油潤滑条件下においても、硫化腐食の進行を抑えることができると共に摩擦摩耗特性及び耐荷重性に優れた多孔質焼結合金層を備えた複層摺動部材を提供することにある。 The present invention has been made in view of the above-mentioned points, and the object thereof is sulfidation corrosion even in oil or lubricating conditions using a lubricating oil containing an extreme pressure additive containing sulfur and the like. It is an object of the present invention to provide a multilayer sliding member provided with a porous sintered alloy layer that can suppress the progress of the above and has excellent frictional wear characteristics and load resistance.
　本発明の複層摺動部材は、鋼板を有した裏金と、この裏金の一方の面に一体的に接合されていると共に鉄又は鉄基合金３０～６０質量％及びニッケル－燐合金４０～７０質量％を含む多孔質焼結合金層とを具備している。 The multi-layer sliding member of the present invention has a back plate having a steel plate, and is integrally joined to one surface of the back plate, and 30 to 60% by mass of iron or iron-based alloy and a nickel-phosphorus alloy 40 to 70. And a porous sintered alloy layer containing mass%.
　本発明の複層摺動部材は、多孔質焼結合金層が３０～６０質量％の鉄又は鉄基合金に対して４０～７０質量％のニッケル－燐合金を含んでいるので、極圧添加剤を含有する潤滑油を用いた油中又は油潤滑条件下においても、優れた摩擦摩耗性及び耐荷重性を発揮すると共に硫化腐食等の不具合を生じることはない。 In the multilayer sliding member of the present invention, the porous sintered alloy layer contains 40 to 70% by mass of nickel-phosphorus alloy with respect to 30 to 60% by mass of iron or iron-based alloy. Even in the oil using the lubricating oil containing the agent or in the oil lubrication condition, it exhibits excellent frictional wear and load resistance and does not cause problems such as sulfidation corrosion.
　本発明の好ましい例では、多孔質焼結合金層は、鉄又は鉄基合金の焼結合金からなるマトリックス相と、このマトリックス相の粒界に晶出したニッケル－燐合金の分散相とを含んでおり、斯かる分散相は、特に多孔質焼結合金層の耐摩耗性及び耐荷重性を向上させる。 In a preferred example of the present invention, the porous sintered alloy layer includes a matrix phase made of a sintered alloy of iron or an iron-base alloy and a dispersed phase of a nickel-phosphorus alloy crystallized at a grain boundary of the matrix phase. In particular, such a dispersed phase improves the wear resistance and load resistance of the porous sintered alloy layer.
　ニッケル－燐合金の分散相の多寡は、多孔質焼結合金層の摩擦摩耗特性及び耐荷重性の良否を左右するものであり、ニッケル－燐合金が４０質量％未満では、マトリックス相の粒界へのニッケル－燐合金の分散相の晶出割合が少なく、多孔質焼結合金層の摩擦摩耗特性及び耐荷重性の向上を期待し難く、また、ニッケル－燐合金が７０質量％を超えると、マトリックス相の粒界へのニッケル－燐合金の分散相の晶出割合が多くなりすぎ、却って多孔質焼結合金層の摩擦摩耗特性及び耐荷重性を低下させる虞がある。 The amount of the dispersed phase of the nickel-phosphorus alloy determines the quality of the friction and wear characteristics and load resistance of the porous sintered alloy layer. When the nickel-phosphorus alloy is less than 40% by mass, the grain boundary of the matrix phase The proportion of crystallization of the dispersed phase of the nickel-phosphorous alloy is small, and it is difficult to expect improvement in the friction and wear characteristics and load resistance of the porous sintered alloy layer. When the nickel-phosphorous alloy exceeds 70% by mass, However, the crystallization ratio of the dispersed phase of the nickel-phosphorus alloy to the grain boundary of the matrix phase is excessively increased, and there is a possibility that the frictional wear characteristics and the load resistance of the porous sintered alloy layer are deteriorated.
　本発明の複層摺動部材において、ニッケル－燐合金は、好ましい例では、燐１０～１２質量％と残部ニッケルとからなり、斯かる残部には、不可避不純物を含んでいてもよい。 In the multilayer sliding member of the present invention, the nickel-phosphorus alloy is preferably composed of 10 to 12% by mass of phosphorus and the balance nickel, and the balance may contain inevitable impurities.
　鉄粉末又は鉄基合金粉末に配合されるニッケル－燐合金において、ニッケル－１１質量％燐合金の共晶点は８７５℃であり、したがって、Ｎｉ－１０～１２質量％燐合金粉末を配合した場合では、ニッケル－１０～１２質量％燐合金粉末がこの共晶点又は共晶点近傍の温度で焼結することで多孔質焼結合金層を得ることができる。ニッケル－１０～１２質量％燐合金粉末には、３５０メッシュ（４４μｍ）の篩を通過する粒度のアトマイズニッケル－燐合金粉末が好適に使用される。 In the nickel-phosphorus alloy blended with the iron powder or the iron-base alloy powder, the eutectic point of the nickel-11 mass% phosphorus alloy is 875 ° C. Therefore, when the Ni-10-12 mass% phosphor alloy powder is blended In this case, the porous sintered alloy layer can be obtained by sintering the nickel-10 to 12% by mass phosphorus alloy powder at or near the eutectic point. As the nickel-10 to 12% by mass phosphorus alloy powder, an atomized nickel-phosphorus alloy powder having a particle size passing through a 350 mesh (44 μm) sieve is preferably used.
　本発明の複層摺動部材において、鋼板は、好ましい例では、フェライト系、オーステナイト系又はマルテンサイト系のステンレス（ＳＵＳ）鋼板からなり、斯かるステンレス鋼板としては、冷間圧延ステンレス鋼板が好ましく、このうち、フェライト系ステンレス鋼板のＪＩＳ鋼種としては、例えば、ＳＵＳ４０５、ＳＵＳ４１０Ｌ、ＳＵＳ４２９、ＳＵＳ４３０、ＳＵＳ４３４、ＳＵＳ４３６Ｌ、ＳＵＳ４４４、ＳＵＳ４４７Ｊ１等を、オーステナイト系ステンレス鋼板のＪＩＳ鋼種としては、例えば、ＳＵＳ３０１、ＳＵＳ３０２、ＳＵＳ３０３、ＳＵＳ３０４、ＳＵＳ３０５、ＳＵＳ３０９Ｓ、ＳＵＳ３１０Ｓ、ＳＵＳ３１６、ＳＵＳ３１６Ｌ、ＳＵＳ３１７、ＳＵＳ３２１、ＳＵＳ３４７、ＳＵＳ３８４等を、そして、マルテンサイト系ステンレス鋼板のＪＩＳ鋼種としては、例えば、ＳＵＳ４０３、ＳＵＳ４１０、ＳＵＳ４１６、ＳＵＳ４２０ＪＩ、ＳＵＳ４３１、ＳＵＳ４４０Ａ等を挙げることができる。 In the multilayer sliding member of the present invention, in a preferred example, the steel plate is made of a ferritic, austenitic or martensitic stainless (SUS) steel plate, and as such a stainless steel plate, a cold rolled stainless steel plate is preferable, Among these, as JIS steel types of ferritic stainless steel plates, for example, SUS405, SUS410L, SUS429, SUS430, SUS434, SUS436L, SUS444, SUS447J1, etc., and as JIS steel types of austenitic stainless steel plates, for example, SUS301, SUS302, SUS303. SUS304, SUS305, SUS309S, SUS310S, SUS316, SUS316L, SUS317, SUS321, SUS347, SUS384, etc. and Martensa The JIS grades bets stainless steel sheet, for example, a SUS403, SUS410, SUS416, SUS420JI, SUS431, SUS440A like.
　鋼板が斯かるステンレス鋼板からなる場合、裏金の一方の面は、このステンレス鋼板の一方の面であってもよく、また、裏金は、このステンレス鋼板の一方の面を被覆したニッケル皮膜を更に具備していてもよく、ニッケル皮膜を更に具備した裏金の場合には、裏金の一方の面は、このニッケル皮膜の一方の面であってもよい。 When the steel plate is made of such a stainless steel plate, one side of the back plate may be one side of the stainless steel plate, and the back plate further comprises a nickel film covering one side of the stainless steel plate. In the case of a back metal further provided with a nickel coating, one side of the back plate may be one side of the nickel coating.
　ステンレス鋼板は、その一方の面が不働態皮膜によって覆われて安定な耐食性を有しているために、特にニッケル皮膜を必要としないが、この不働態皮膜は、極薄で壊れやすいため、当該不働態皮膜の補強を目的として、ステンレス鋼板にニッケルめっきによるニッケル皮膜を形成してもよい。 A stainless steel sheet is covered with a passive film and has a stable corrosion resistance, so it does not require a nickel film, but this passive film is extremely thin and fragile. For the purpose of reinforcing the passive film, a nickel film by nickel plating may be formed on the stainless steel plate.
　本発明の複層摺動部材において、鋼板は、他の好ましい例では、ＪＩＳＧ３１０１に規定されている一般構造用圧延鋼板（ＳＳ４００等）又はＪＩＳＧ３１４１に規定されている冷間圧延鋼板（ＳＰＣＣ等）からなっており、鋼板が斯かる一般構造用圧延鋼板又は冷間圧延鋼板からなる場合、裏金の一方の面は、この一般構造用圧延鋼板又は冷間圧延鋼板の一方の面であってもよく、また、裏金は、この一般構造用圧延鋼板又は冷間圧延鋼板の一方の面を被覆したニッケル皮膜を更に具備していてもよく、ニッケル皮膜を更に具備した裏金の場合には、裏金の一方の面は、このニッケル皮膜の一方の面であってもよい。 In the multilayer sliding member of the present invention, in another preferable example, the steel plate is from a general structural rolled steel plate (SS400 or the like) specified in JISG3101 or a cold rolled steel plate (SPCC or the like) specified in JISG3141. When the steel plate is made of such a general structural rolled steel plate or cold rolled steel plate, one surface of the back metal may be one surface of this general structural rolled steel plate or cold rolled steel plate, Further, the back metal may further include a nickel film covering one surface of the general structural rolled steel sheet or cold rolled steel sheet. In the case of a back metal further provided with a nickel film, one of the back metal The surface may be one surface of this nickel coating.
　以上のニッケル皮膜の厚さは、概ね３～５０μｍであることが好ましい。 The thickness of the above nickel film is preferably about 3 to 50 μm.
　本発明の複層摺動部材において、多孔質焼結合金層の鉄成分となる鉄粉末には、２００メッシュ（７４μｍ）の篩を通過する還元鉄粉末又はアトマイズ鉄粉末が好適に使用される。アトマイズ鉄粉末では、気孔が少なく比表面積が小さいのに対し、還元鉄粉末では、気孔が比較的多く表面に凹凸が多く、アトマイズ鉄粉末と比べて比表面積が高く、特に、アトマイズ鉄粉末は、球形状をなして分散性や流動性に優れているので本発明における多孔質焼結合金層の鉄成分用として好適に使用される。 In the multilayer sliding member of the present invention, reduced iron powder or atomized iron powder that passes through a 200-mesh (74 μm) sieve is suitably used as the iron powder that is the iron component of the porous sintered alloy layer. In atomized iron powder, there are few pores and specific surface area is small, whereas in reduced iron powder, there are relatively many pores and many irregularities on the surface, and the specific surface area is higher than atomized iron powder. Since it has a spherical shape and is excellent in dispersibility and fluidity, it is suitably used for the iron component of the porous sintered alloy layer in the present invention.
　本発明の複層摺動部材において、多孔質焼結合金層の鉄基合金成分となる鉄基合金粉末としては、例えば、ＳＵＳ４０５、ＳＵＳ４１０Ｌ、ＳＵＳ４２９、ＳＵＳ４３０、ＳＵＳ４３４、ＳＵＳ４３６Ｌ、ＳＵＳ４４４及びＳＵＳ４４７Ｊ１等のクロム（Ｃｒ）を１０～２０質量％含有すると共に残部が鉄及び不可避不純物からなるフェライト系鋼（ＳＵＳ）粉末、ＳＵＳ３０１、ＳＵＳ３０２、ＳＵＳ３０３、ＳＵＳ３０４、ＳＵＳ３０５、ＳＵＳ３０９、ＳＵＳ３１０、ＳＵＳ３１６、ＳＵＳ３１６Ｌ、ＳＵＳ３１７、ＳＵＳ３２１、ＳＵＳ３４７及びＳＵＳ３８４等のクロムを１６～２２質量％、ニッケルを３～１６質量％含有すると共に残部が鉄および不可避不純物からなるオーステナイト系鋼粉末又はＳＵＳ４０３、ＳＵＳ４１０、ＳＵＳ４１６、ＳＵＳ４２０、ＳＵＳ４３１、ＳＵＳ４４０等のクロムを１３～１８質量％含有すると共に残部が鉄及び不可避不純物からなるマルテンサイト系鋼粉末が好適に使用されるが、ニッケルにより酸化クロムの不動態膜の形成能力及び修復能力を高めて、非酸化性の酸（硫酸、亜硫酸、塩酸等）に対する耐食性を改善することができるため、斯かる耐酸腐食性の観点からは、ニッケルを相当割合含むオーステナイト系鋼粉末が好適である。 In the multilayer sliding member of the present invention, examples of the iron-based alloy powder that becomes the iron-based alloy component of the porous sintered alloy layer include chromium such as SUS405, SUS410L, SUS429, SUS430, SUS434, SUS436L, SUS444, and SUS447J1. Ferritic steel (SUS) powder containing 10 to 20% by mass of (Cr) and the balance being iron and inevitable impurities, SUS301, SUS302, SUS303, SUS304, SUS305, SUS309, SUS310, SUS316, SUS316L, SUS317, SUS321, An austenitic steel powder containing 16 to 22% by mass of chromium such as SUS347 and SUS384, 3 to 16% by mass of nickel and the balance being iron and inevitable impurities, or SUS403 and SUS41 , SUS416, SUS420, SUS431, SUS440 and the like, martensitic steel powder containing 13 to 18% by mass of chromium and the balance of iron and inevitable impurities is preferably used. Austenitic steel containing a considerable amount of nickel from the viewpoint of acid corrosion resistance since it can improve the corrosion resistance against non-oxidizing acids (sulfuric acid, sulfurous acid, hydrochloric acid, etc.) by improving the forming ability and the repairing ability. A powder is preferred.
　これら鋼粉末は、例えば、アトマイズ法（水アトマイズ法、ガスアトマイズ法、遠心アトマイズ法等）、還元法、粉砕法等のいずれの方法で製造されてもよいが、このうち、アトマイズ法により製造された鋼粉末が好ましい。アトマイズ法は、微小な平均粒径の鋼粉末を効率よく製造することができ、アトマイズ法で製造された鋼粉末は、真球に比較的近い球形状をなしているため、分散性や流動性に優れたものとなり、斯かる鋼粉末は、鉄粉末の粒度と同様の２００メッシュ（７４μｍ）の篩を通過する粒度を有しているとよい。 These steel powders may be produced, for example, by any method such as an atomization method (water atomization method, gas atomization method, centrifugal atomization method, etc.), reduction method, pulverization method, etc., among these, produced by the atomization method. Steel powder is preferred. The atomizing method can efficiently produce steel powder with a small average particle diameter, and the steel powder produced by the atomizing method has a spherical shape that is relatively close to a true sphere. The steel powder preferably has a particle size that passes through a 200 mesh (74 μm) sieve similar to the particle size of the iron powder.
　本発明の複層摺動部材は、多孔質焼結合金層に低摩擦性を付与するべく、多孔質焼結合金層の孔隙及び一方の面に充填固着されていると共に少なくとも合成樹脂を含む被覆層を更に具備していてもよい。 The multi-layer sliding member of the present invention is a coating containing at least a synthetic resin and filled and fixed to the pores and one surface of the porous sintered alloy layer in order to impart low friction to the porous sintered alloy layer. It may further comprise a layer.
　斯かる合成樹脂は、ポリテトラフルオロエチレン樹脂等のフッ素樹脂、ポリアセタール樹脂、ポリアミド樹脂、ポリフェニレンサルファイド樹脂、ポリエーテルエーテルケトン樹脂及びポリアミドイミド樹脂から選択される少なくとも一つの主成分と、耐摩耗性向上剤としてのポリイミド樹脂、焼成フェノール樹脂、ポリフェニレンスルホン樹脂及びオキシベンゾイルポリエステル樹脂から選択される少なくとも一つの追加成分とを含んでいてもよく、被覆層は、斯かる追加成分に加えて、燐酸塩、硫酸バリウム及び固体潤滑剤から選択される少なくとも一つの無機材料を含んでいてもよい。 Such a synthetic resin comprises at least one main component selected from fluorine resins such as polytetrafluoroethylene resin, polyacetal resin, polyamide resin, polyphenylene sulfide resin, polyetheretherketone resin and polyamideimide resin, and improved wear resistance. And at least one additional component selected from a polyimide resin, a baked phenol resin, a polyphenylene sulfone resin, and an oxybenzoyl polyester resin as an agent, and in addition to such an additional component, the coating layer includes a phosphate, At least one inorganic material selected from barium sulfate and a solid lubricant may be included.
　被覆層は、有機材料であるポリイミド樹脂、焼成フェノール樹脂、ポリフェニレンスルホン樹脂及びオキシベンゾイルポリエステル樹脂から選択される１種又は２種以上の追加成分１～１０質量％並びにポリテトラフルオロエチレン樹脂からなる合成樹脂の主成分と、無機材料である燐酸塩１～３０質量％及び硫酸バリウム５～４０質量％の追加成分とを含んでいてもよく、また、有機材料であるオキシベンゾイルポリエステル樹脂１～２５体積％並びにポリテトラフルオロエチレン樹脂からなる合成樹脂の主成分と無機材料である燐酸塩１～１５体積％及び硫酸バリウム１～２０体積％の追加成分とを含んでいてもよく、更には、主成分としての残部ポリアセタール樹脂と追加成分としての飽和脂肪酸と多価アルコールとから誘導される多価アルコール脂肪酸エステル０．５～５重量％及びホホバ油０．５～３重量％とを含んでいてもよい。 The coating layer is composed of 1 to 10% by weight of one or more additional components selected from polyimide resin, calcined phenol resin, polyphenylene sulfone resin and oxybenzoyl polyester resin, which are organic materials, and a polytetrafluoroethylene resin. It may contain the main component of the resin and 1 to 30% by mass of an inorganic material phosphate and 5 to 40% by mass of barium sulfate, and 1 to 25 volumes of an oxybenzoyl polyester resin that is an organic material. And a main component of a synthetic resin composed of a polytetrafluoroethylene resin and an additional component of 1 to 15% by volume of phosphate and 1 to 20% by volume of barium sulfate, which are inorganic materials. Derived from the remaining polyacetal resin as an additive and saturated fatty acids and polyhydric alcohols as additional components Valence alcohol fatty acid ester 0.5 to 5 wt% and jojoba oil 0.5-3% by weight and may contain.
　本発明において、好ましくは、多孔質焼結合金層は、０．１～０．５ｍｍ、就中０．３～０．４ｍｍの厚さを有しており、合成樹脂を含む被覆層は、０．０２～０．１ｍｍの厚さを有している。 In the present invention, the porous sintered alloy layer preferably has a thickness of 0.1 to 0.5 mm, particularly 0.3 to 0.4 mm, and the coating layer containing a synthetic resin has a thickness of 0 to It has a thickness of 0.02 to 0.1 mm.
　本発明による複層摺動部材は、適宜の寸法に切断されて平板の滑り板として又は多孔質焼結合金層を、多孔質焼結合金層に加えて被覆層を備えている場合には、被覆層を内側にして丸曲げした円筒状の巻きブッシュとして使用される。 When the multilayer sliding member according to the present invention is cut to an appropriate size and is provided as a flat sliding plate or a porous sintered alloy layer, in addition to the porous sintered alloy layer, a coating layer is provided. It is used as a cylindrical wound bush that is round-bent with the coating layer inside.
　本発明によれば、潤滑油中、特に硫黄等を含む極圧添加剤を含有する潤滑油を用いた油中又は油潤滑条件下においても、硫化腐食の進行を抑えることができると共に摩擦摩耗特性及び耐荷重性に優れた複層摺動部材を提供することができる。 According to the present invention, the progress of sulfidation corrosion can be suppressed and frictional wear characteristics can be suppressed even in an oil or in an oil lubrication condition using a lubricant containing an extreme pressure additive containing sulfur or the like. And the multilayer sliding member excellent in load resistance can be provided.
図１は、本発明の複層摺動部材の実施の形態の好ましい例の縦断面説明図である。FIG. 1 is a longitudinal sectional explanatory view of a preferred example of an embodiment of a multilayer sliding member of the present invention. 図２は、本発明の複層摺動部材の他の実施の形態の好ましい例の縦断面説明図である。FIG. 2 is a longitudinal sectional explanatory view of a preferred example of another embodiment of the multilayer sliding member of the present invention. 図３は、スラスト試験方法を説明するための斜視説明図である。FIG. 3 is an explanatory perspective view for explaining the thrust test method.
　次に、本発明及びその実施の形態を、図面を参照して更に詳細に説明する。なお、本発明はこれらの実施例に何等限定されないのである。 Next, the present invention and its embodiments will be described in more detail with reference to the drawings. In addition, this invention is not limited to these Examples at all.
　まず、図１に示すような本発明に係る複層摺動部材１の製造方法の一例について説明する。 First, an example of the manufacturing method of the multilayer sliding member 1 according to the present invention as shown in FIG. 1 will be described.
　裏金２として、コイル状に巻いてフープ材として提供される厚さ０．３～１．０ｍｍの連続条片からなるステンレス鋼板を準備する。準備するステンレス鋼板は、必ずしも連続条片に限らず、適当な長さに切断した条片でもよい。 As the backing metal 2, a stainless steel plate made of a continuous strip having a thickness of 0.3 to 1.0 mm provided as a hoop material is prepared by being wound in a coil shape. The stainless steel plate to be prepared is not necessarily a continuous strip, but may be a strip cut to an appropriate length.
　２００メッシュ（７４μｍ）の篩を通過する粒度のアトマイズ鉄粉末又は鉄基合金粉末３０～６０質量％と、３５０メッシュ（４４μｍ）の篩を通過する粒度のアトマイズニッケル－１０～１２質量％燐合金粉末４０～７０質量％とをＶ型ミキサーに投入し３０～６０分間混合して混合粉末を作製する。この混合粉末を裏金２の一方の面に一様な厚さに散布し、真空中又は水素ガス、窒素・水素混合ガス（２５ｖｏｌ％Ｈ２－７５ｖｏｌ％Ｎ２）若しくはアンモニア分解ガス（ＡＸガス：７５ｖｏｌ％Ｈ２、２５ｖｏｌ％Ｎ２の混合ガス）等の還元性雰囲気に調整された加熱炉内で８７５～９００℃の温度で５～１０分間焼結し、裏金２の一方の面に鉄又は鉄基合金とニッケル－燐合金との焼結体を含む多孔質焼結合金層３を一体的に接合した複層摺動部材１を作製する。 30-60 mass% atomized iron powder or iron-base alloy powder passing through a 200 mesh (74 μm) sieve, and 10-10 mass% phosphorous alloy powder having a particle size passing through a 350 mesh (44 μm) sieve 40 to 70 mass% is put into a V-shaped mixer and mixed for 30 to 60 minutes to produce a mixed powder. This mixed powder is sprayed on one side of the back metal 2 to a uniform thickness, and in a vacuum or hydrogen gas, nitrogen / hydrogen mixed gas (25 vol% H 2 -75 vol% N 2 ) or ammonia decomposition gas (AX gas: Sintered at a temperature of 875 to 900 ° C. for 5 to 10 minutes in a heating furnace adjusted to a reducing atmosphere such as a mixed gas of 75 vol% H 2 and 25 vol% N 2 ). A multilayer sliding member 1 is produced in which a porous sintered alloy layer 3 including a sintered body of an iron-base alloy and a nickel-phosphorus alloy is integrally joined.
　裏金２の一方の面に一様な厚さに散布された混合粉末における鉄粉末又は鉄基合金粉末は、多孔質焼結合金層３のマトリックス相を構成し、ニッケル－１０～１２質量％燐合金粉末は、マトリックス相の鉄粉末又は鉄基合金粉末の粒子の隙間に侵入して鉄粉末又は鉄基合金粉末と接触する。ついで、焼結工程において、加熱炉内で加熱していくと、ニッケル－燐合金粉末に含有されるニッケル成分が裏金２の一方の面に拡散してその界面を合金化し、裏金２の一方の面に多孔質焼結合金層３を接合させと共に、ニッケル成分が上記接触部位を介して鉄粉末又は鉄基合金粉末の粒子中に拡散し、この接触部位近傍に局所的にニッケル成分が高濃度に含有された拡散領域を形成する。さらに加熱温度を上げていくと、ニッケル－燐合金の共晶温度（８７５℃）を超えた時点で拡散領域が溶融して液相を形成し、この液相はマトリックス相の各粒子の隙間に侵入してブリッジを形成し、このブリッジの形成によりマトリックス相はその各隙間を埋めるようにして適宜再配列され、また、液相を介して焼結が行われるため焼結反応が促進され、部分的に液相焼結が進行することにより、マトリックス相の鉄粉末又は鉄基合金粉末同士が密に結合して焼結される。複層摺動部材１における多孔質焼結合金層３は、鉄又は鉄基合金のマトリックス相と、該マトリックス相の粒界に晶出したニッケル－燐合金の分散相とを含むことになる。 The iron powder or iron-base alloy powder in the mixed powder dispersed to a uniform thickness on one surface of the back metal 2 constitutes the matrix phase of the porous sintered alloy layer 3 and is made of nickel-10-12 mass% phosphorus. The alloy powder enters the gaps between the particles of the matrix-phase iron powder or iron-base alloy powder and comes into contact with the iron powder or iron-base alloy powder. Then, in the sintering process, when heating is performed in a heating furnace, the nickel component contained in the nickel-phosphorus alloy powder diffuses to one surface of the back metal 2 to alloy its interface, and one of the back metal 2 The porous sintered alloy layer 3 is bonded to the surface, the nickel component diffuses into the particles of the iron powder or the iron-based alloy powder through the contact portion, and the nickel component is locally concentrated in the vicinity of the contact portion. The diffusion region contained in is formed. When the heating temperature is further increased, the diffusion region melts to form a liquid phase when the eutectic temperature (875 ° C.) of the nickel-phosphorus alloy is exceeded, and this liquid phase is formed in the gaps between the particles of the matrix phase. Intrusions form bridges, and the formation of the bridges causes the matrix phase to be appropriately rearranged so as to fill the gaps between them, and the sintering reaction is promoted because the sintering is performed via the liquid phase. As liquid phase sintering proceeds, matrix-phase iron powder or iron-base alloy powder is closely bonded and sintered. The porous sintered alloy layer 3 in the multilayer sliding member 1 includes a matrix phase of iron or an iron-based alloy and a dispersed phase of a nickel-phosphorus alloy crystallized at the grain boundary of the matrix phase.
　次に、図２に示すような多孔質焼結合金層３に加えて被覆層４を備えた複層摺動部材５の製造方法の一例について説明する。 Next, an example of a method for manufacturing the multilayer sliding member 5 provided with the coating layer 4 in addition to the porous sintered alloy layer 3 as shown in FIG. 2 will be described.
　主成分のポリテトラフルオロエチレン樹脂に加えて、硫酸バリウム５～４０質量％、燐酸塩１～３０質量％並びにポリイミド樹脂、焼成フェノール樹脂及びポリフェニレンスルホン樹脂から選択される１種又は２種以上の有機材料の追加成分１～１０質量％を配合し、ヘンシェルミキサーに供給して撹拌混合し、ポリテトラフルオロエチレン樹脂と硫酸バリウムと燐酸塩と有機材料の追加成分とを含む混合物を作製する。この混合物１００重量部に対し石油系溶剤を１５～３０重量部配合し、ポリテトラフルオロエチレン樹脂の室温転移点以下の温度（１５℃）で混合して合成樹脂組成物を作製する。この合成樹脂組成物を裏金２の一方の面に一体的に接合された多孔質焼結合金層３の一方の面上に散布供給し、合成樹脂組成物の厚さが所定の厚さになるようにローラで圧延して多孔質焼結合金層３の孔隙及び一方の面に合成樹脂組成物を充填固着する。ついで、これを２００～２５０℃の温度に加熱した熱風乾燥炉中に数分間保持して溶剤を除去した合成樹脂組成物を所定の厚さになるように３００～６００ｋｇｆ／ｃｍ２の加圧下で加圧ローラ処理する。そして、これを加熱炉に導入して３６０～３８０℃の温度で数分から１０数分間加熱して焼成した後、炉から取り出し、再度ローラ処理によって寸法のばらつきを調整し、裏金２の一方の面に一体的に接合された多孔質焼結合金層３の孔隙及び一方の面に充填固着された合成樹脂を含む被覆層４を備えた複層摺動部材５とする。 In addition to the main component polytetrafluoroethylene resin, 5 to 40% by mass of barium sulfate, 1 to 30% by mass of phosphate, and one or more organic compounds selected from polyimide resin, calcined phenol resin and polyphenylene sulfone resin An additional component of 1 to 10% by mass of the material is blended, supplied to a Henschel mixer, and stirred and mixed to prepare a mixture containing the polytetrafluoroethylene resin, barium sulfate, phosphate and the additional component of the organic material. A synthetic resin composition is prepared by blending 15 to 30 parts by weight of a petroleum solvent with 100 parts by weight of the mixture and mixing at a temperature (15 ° C.) below the room temperature transition point of the polytetrafluoroethylene resin. This synthetic resin composition is sprayed and supplied onto one surface of the porous sintered alloy layer 3 integrally joined to one surface of the back metal 2, so that the thickness of the synthetic resin composition becomes a predetermined thickness. In this way, the synthetic resin composition is filled and fixed to the pores and one surface of the porous sintered alloy layer 3 by rolling with a roller. Next, the synthetic resin composition from which the solvent has been removed by holding it in a hot air drying furnace heated to a temperature of 200 to 250 ° C. for several minutes under a pressure of 300 to 600 kgf / cm 2 so as to have a predetermined thickness. Treat with pressure roller. Then, this is introduced into a heating furnace, heated and heated at a temperature of 360 to 380 ° C. for several minutes to several tens of minutes, then taken out from the furnace, adjusted for variation in dimensions by roller treatment again, and one side of the back metal 2 A multi-layer sliding member 5 provided with a coating layer 4 including a pore of the porous sintered alloy layer 3 integrally bonded to the surface and a synthetic resin filled and fixed on one surface thereof.
　以下、実施例１から１３並びに比較例１及び２について説明する。 Hereinafter, Examples 1 to 13 and Comparative Examples 1 and 2 will be described.
　実施例１
　裏金２として、厚さ０．６５ｍｍの冷間圧延鋼板（ＳＰＣＣ）を幅１７０ｍｍ、長さ６００ｍｍの寸法に切断した条片を準備したのち、この条片の一方の面を含む全面に電解ニッケルめっきによる厚さ２０μｍのニッケル皮膜を施した。 Example 1
After preparing a strip obtained by cutting a cold rolled steel plate (SPCC) having a thickness of 0.65 mm into dimensions of 170 mm in width and 600 mm in length as the back metal 2, electrolytic nickel plating is applied to the entire surface including one surface of the strip. A nickel film having a thickness of 20 μm was applied.
　２００メッシュ（７４μｍ）の篩を通過する粒度のアトマイズ鉄粉末６０質量％と、３５０メッシュ（４４μｍ）の篩を通過する粒度のアトマイズニッケル－１１質量％燐合金粉末４０質量％（ニッケル３５．６質量％、燐４．４質量％）とを３０分間Ｖ型ミキサーで混合して作製した混合粉末を、予めトリクレンにて脱脂清浄したニッケル皮膜の一方の面に一様な厚さに散布し、これを水素・窒素混合ガス（２５ｖｏｌ％Ｈ２－７５ｖｏｌ％Ｎ２）の還元性雰囲気に調整した加熱炉内で８９０℃の温度で１０分間焼結し、ニッケル皮膜の一方の面に、鉄粉末６０質量％及びニッケル－１１質量％燐合金粉末４０質量％を含む混合粉末の焼結合金からなる厚さ０．３ｍｍの多孔質焼結合金層３を一体的に接合した複層摺動部材１を作製した。 60% by mass of atomized iron powder having a particle size passing through a 200 mesh (74 μm) sieve, and 40% by mass of nickel alloy of 11% by mass of nickel particle having a particle size passing through a 350 mesh (44 μm) sieve (35.6% by mass of nickel) %, Phosphorous 4.4 mass%) mixed for 30 minutes with a V-type mixer, and sprayed to a uniform thickness on one surface of a nickel film degreased and cleaned beforehand with trichrene. Was sintered at a temperature of 890 ° C. for 10 minutes in a heating furnace adjusted to a reducing atmosphere of a hydrogen / nitrogen mixed gas (25 vol% H 2 -75 vol% N 2 ). A multilayer sliding member 1 in which a porous sintered alloy layer 3 having a thickness of 0.3 mm made of a sintered alloy of a mixed powder containing 10% by mass and 40% by mass of a nickel-11% phosphorus alloy powder is integrally joined. Made
　実施例２
　混合粉末において、アトマイズ鉄粉末を５０質量％と、アトマイズニッケル－１１質量％燐合金粉末を５０質量％（ニッケル４４．５質量％、燐５．５質量％）とした以外は実施例１と同様の方法で、ニッケル皮膜の一方の面に、厚さ０．３ｍｍの鉄粉末５０質量％及びニッケル－１１質量％燐合金粉末５０質量％を含む混合粉末の焼結合金からなる多孔質焼結合金層３を一体的に接合した複層摺動部材１を作製した。 Example 2
In the mixed powder, the same as Example 1 except that the atomized iron powder was 50 mass% and the atomized nickel-11 mass% phosphorus alloy powder was 50 mass% (nickel 44.5 mass%, phosphorus 5.5 mass%). A porous sintered alloy comprising a sintered powder of a mixed powder containing 50% by mass of iron powder having a thickness of 0.3 mm and 50% by mass of nickel-11% by mass and phosphorus alloy powder having a thickness of 0.3 mm on one surface of the nickel film. A multilayer sliding member 1 in which the layers 3 were joined integrally was produced.
　実施例３
　裏金２として、厚さ０．６５ｍｍのフェライト系ステンレス鋼板（ＳＵＳ４３０）を幅１７０ｍｍ、長さ６００ｍｍの寸法に切断した条片を準備した。 Example 3
A strip obtained by cutting a ferritic stainless steel plate (SUS430) having a thickness of 0.65 mm into a size having a width of 170 mm and a length of 600 mm was prepared as the backing metal 2.
　２００メッシュ（７４μｍ）の篩を通過する粒度のアトマイズフェライト系ステンレス粉末（ＳＵＳ４１０Ｌ：炭素０．０１７質量％、珪素０．４７質量％、マンガン０．１８質量％、燐０．０１質量％、硫黄０．００５質量％、クロム１２．４質量％、残部鉄）４０質量％と、アトマイズニッケル－１１質量％燐合金粉末６０質量％（ニッケル５３．４質量％、燐６．６質量％）とを実施例１と同様の方法で混合粉末を作製し、裏金２としてのフェライト系ステンレス鋼板からなる条片の一方の面に、以下、実施例１と同様の方法で、厚さ０．３ｍｍのフェライト系ステンレス粉末４０質量％及びニッケル－１１質量％燐合金粉末６０質量％を含む混合粉末の焼結合金からなる多孔質焼結合金層３を一体的に接合した複層摺動部材１を作製した。 Atomized ferrite stainless steel powder having a particle size that passes through a 200 mesh (74 μm) sieve (SUS410L: carbon 0.017 mass%, silicon 0.47 mass%, manganese 0.18 mass%, phosphorus 0.01 mass%, sulfur 0 0.005 mass%, chromium 12.4 mass%, balance iron) 40 mass%, atomized nickel-11 mass% phosphorus alloy powder 60 mass% (nickel 53.4 mass%, phosphorus 6.6 mass%) A mixed powder was prepared by the same method as in Example 1, and on one side of the strip made of a ferritic stainless steel plate as the backing metal 2, a ferrite system having a thickness of 0.3 mm was formed in the same manner as in Example 1 below. A multi-layer sliding member 1 is prepared by integrally joining a porous sintered alloy layer 3 made of a mixed powder sintered alloy containing 40% by mass of stainless steel powder and 60% by mass of nickel-11% by mass phosphorus alloy powder. It was.
　実施例４
　裏金２として、実施例３と同様の条片を準備した。 Example 4
As the backing metal 2, the same strip as in Example 3 was prepared.
　実施例３と同様のアトマイズフェライト系ステンレス粉末を５０質量％とし、アトマイズニッケル－１１質量％燐合金粉末を５０質量％とした以外は実施例３と同様の方法で、裏金２としてのフェライト系ステンレス鋼板からなる条片の一方の面に、厚さ０．３ｍｍのフェライト系ステンレス粉末５０質量％及びニッケル－１１質量％燐合金粉末５０質量％を含む混合粉末の焼結合金からなる多孔質焼結合金層３を一体的に接合した複層摺動部材１を作製した。 Ferritic stainless steel as the back metal 2 in the same manner as in Example 3 except that the atomized ferrite stainless powder as in Example 3 was changed to 50% by mass and the atomized nickel-11 mass% phosphorus alloy powder was changed to 50% by mass. One surface of a strip made of steel plate is porous sintered by a sintered powder of a mixed powder containing 50% by mass of a ferritic stainless steel powder having a thickness of 0.3 mm and 50% by mass of nickel-11% by mass phosphorus alloy powder. A multilayer sliding member 1 in which the gold layer 3 was integrally joined was produced.
　実施例５
　実施例３と同様の裏金２としての条片の一方の面を含む全面に実施例１と同様のニッケル皮膜を施した。 Example 5
The same nickel coating as in Example 1 was applied to the entire surface including one surface of the strip as the back metal 2 similar to that in Example 3.
　実施例３と同様のフェライト系ステンレス粉末６０質量％及びニッケル－１１質量％燐合金粉末４０質量％を含む混合粉末を実施例１と同様の方法で作製し、この混合粉末の焼結合金からなる多孔質焼結合金層３を実施例１と同様の方法でニッケル皮膜の一方の面に一体的に接合した複層摺動部材１を作製した。 A mixed powder containing 60% by mass of ferritic stainless steel powder and 40% by mass of nickel-11% by mass phosphorus alloy powder as in Example 3 was prepared in the same manner as in Example 1 and was made of a sintered alloy of this mixed powder. A multilayer sliding member 1 in which the porous sintered alloy layer 3 was integrally joined to one surface of the nickel film by the same method as in Example 1 was produced.
　実施例６
　フェライト系ステンレス鋼板（ＳＵＳ４３４）を使用した以外は、実施例３と同様の裏金２としての条片を準備した。 Example 6
A strip as the back metal 2 was prepared in the same manner as in Example 3 except that a ferritic stainless steel plate (SUS434) was used.
　２００メッシュ（７４μｍ）の篩を通過する粒度のアトマイズフェライト系ステンレス粉末（ＳＵＳ４３４：炭素０．０１質量％、珪素０．１４質量％、マンガン０．１０質量％、燐０．０１質量％、硫黄０．００５質量％、クロム１７．６質量％、残部鉄）４０質量％と、実施例１と同様のアトマイズニッケル－１１質量％燐合金粉末６０質量％とから実施例１と同様の方法で作製した混合粉末でもって、裏金２としてのフェライト系ステンレス鋼板からなる条片の一方の面に、実施例３と同様の方法で、厚さ０．３ｍｍのフェライト系ステンレス粉末４０質量％及びニッケル－１１質量％燐合金粉末６０質量％を含む混合粉末の焼結合金からなる多孔質焼結合金層３を一体的に接合した複層摺動部材１を作製した。 Atomized ferrite stainless powder with a particle size passing through a 200 mesh (74 μm) sieve (SUS434: carbon 0.01% by mass, silicon 0.14% by mass, manganese 0.10% by mass, phosphorus 0.01% by mass, sulfur 0 .005 mass%, chromium 17.6 mass%, balance iron) 40 mass% and atomized nickel-11 mass% phosphorous alloy powder 60 mass% similar to that of Example 1 were produced in the same manner as in Example 1. In the same manner as in Example 3, 40% by mass of ferritic stainless steel powder having a thickness of 0.3 mm and 11% by mass of nickel are formed on one surface of a strip made of a ferritic stainless steel plate as the backing metal 2 with the mixed powder. A multilayer sliding member 1 in which a porous sintered alloy layer 3 made of a sintered powder of a mixed powder containing 60% by mass of phosphorus alloy powder was integrally joined was produced.
　実施例７
　オーステナイト系ステンレス鋼板（ＳＵＳ３０４）を使用した以外は、実施例３と同様にして裏金２としての条片を準備した。 Example 7
A strip as the back metal 2 was prepared in the same manner as in Example 3 except that an austenitic stainless steel plate (SUS304) was used.
　２００メッシュ（７４μｍ）の篩を通過する粒度のアトマイズオーステナイト系ステンレス粉末（ＳＵＳ３０４Ｌ：炭素０．０２０質量％、珪素０．８７質量％、マンガン０．２０質量％、燐０．０３質量％、硫黄０．０２質量％、ニッケル１０．２４質量％、クロム１８．６０質量％、残部鉄）３０質量％と、実施例１と同様のアトマイズニッケル－１１質量％燐合金粉末７０質量％（ニッケル６２．３質量％、燐７．７質量％）とから実施例１と同様の方法で作製した混合粉末でもって、実施例３と同様の方法で、裏金２としてのオーステナイト系ステンレス鋼板の条片の一方の面に、厚さ０．３ｍｍのオーステナイト系ステンレス粉末３０質量％及びニッケル－１１質量％燐合金粉末７０質量％を含む混合粉末の焼結合金からなる多孔質焼結合金層３を一体的に接合した複層摺動部材１を作製した。 Atomized austenitic stainless powder with a particle size passing through a 200 mesh (74 μm) sieve (SUS304L: carbon 0.020% by mass, silicon 0.87% by mass, manganese 0.20% by mass, phosphorus 0.03% by mass, sulfur 0 0.02% by mass, nickel 10.24% by mass, chromium 18.60% by mass, balance iron) 30% by mass, atomized nickel of 11% by mass as in Example 1, phosphorus alloy powder 70% by mass (nickel 62.3) 1% of the strip of austenitic stainless steel sheet as the back metal 2 in the same manner as in Example 3 with the mixed powder produced by the same method as in Example 1. A multi-sintered sintered alloy comprising 30% by mass of austenitic stainless steel powder having a thickness of 0.3 mm and 70% by mass of nickel-11% by mass phosphorus alloy powder on the surface. Quality sintered alloy layer 3 was manufactured multilayered sliding member 1 which is integrally joined.
　実施例８
　裏金２として、実施例７と同様の条片を準備した。 Example 8
As the backing metal 2, the same strip as in Example 7 was prepared.
　実施例７と同様のアトマイズオーステナイト系ステンレス粉末を４０質量％と、アトマイズニッケル－１１質量％燐合金粉末を６０質量％とした以外は実施例７と同様の方法で、裏金２としてのオーステナイト系ステンレス鋼板の条片の一方の面に、厚さ０．３ｍｍのオーステナイト系ステンレス粉末４０質量％及びニッケル－１１質量％燐合金粉末６０質量％を含む混合粉末の焼結合金からなる多孔質焼結合金層３を一体的に接合した複層摺動部材１を作製した。 Austenitic stainless steel as the back metal 2 in the same manner as in Example 7, except that the atomized austenitic stainless steel powder is 40 mass% and the atomized nickel-11 mass% phosphor alloy powder is 60 mass%. A porous sintered alloy comprising a sintered powder of a mixed powder containing 40% by mass of austenitic stainless steel powder having a thickness of 0.3 mm and 60% by mass of nickel-11% by mass phosphorus alloy powder on one surface of a strip of steel plate A multilayer sliding member 1 in which the layers 3 were joined integrally was produced.
　実施例９
　裏金２として、実施例８と同様の条片を準備した。 Example 9
As the backing metal 2, the same strip as in Example 8 was prepared.
　実施例７と同様のアトマイズオーステナイト系ステンレス粉末を５０質量％と、アトマイズニッケル－１１質量％燐合金粉末を５０質量％とした以外は実施例７と同様の方法で、裏金２としてのオーステナイト系ステンレス鋼板の条片の一方の面に、厚さ０．３ｍｍのオーステナイト系ステンレス粉末５０質量％及びニッケル－１１質量％燐合金粉末５０質量％を含む混合粉末の焼結合金からなる多孔質焼結合金層３を一体的に接合した複層摺動部材１を作製した。 Austenitic stainless steel as the back metal 2 in the same manner as in Example 7 except that 50% by mass of the same atomized austenitic stainless steel powder as in Example 7 and 50% by mass of the atomized nickel-11 mass% phosphorus alloy powder were used. A porous sintered alloy comprising a sintered powder of a mixed powder containing 50% by mass of austenitic stainless steel powder having a thickness of 0.3 mm and 50% by mass of nickel-11% by mass phosphorus alloy powder on one surface of a strip of steel plate A multilayer sliding member 1 in which the layers 3 were joined integrally was produced.
　実施例１０
　裏金２として、実施例８と同様の条片を準備した。 Example 10
As the backing metal 2, the same strip as in Example 8 was prepared.
　実施例７と同様のアトマイズオーステナイト系ステンレス粉末を６０質量％と、アトマイズニッケル－１１質量％燐合金粉末を４０質量％とした以外は実施例７と同様の方法で、裏金２としてのオーステナイト系ステンレス鋼板の条片の一方の面に、厚さ０．３ｍｍのオーステナイト系ステンレス粉末６０質量％及びニッケル－１１質量％燐合金粉末４０質量％を含む混合粉末の焼結合金からなる多孔質焼結合金層３を一体的に接合した複層摺動部材１を作製した。 Austenitic stainless steel as the back metal 2 in the same manner as in Example 7 except that 60% by mass of the atomized austenitic stainless steel powder as in Example 7 and 40% by mass of the atomized nickel-11 mass% phosphorus alloy powder were used. A porous sintered alloy comprising a sintered powder of a mixed powder containing 60% by mass of austenitic stainless steel powder having a thickness of 0.3 mm and 40% by mass of nickel-11% phosphorus alloy powder on one surface of a strip of steel plate A multilayer sliding member 1 in which the layers 3 were joined integrally was produced.
　実施例１１
　オーステナイト系ステンレス鋼板（ＳＵＳ３１６Ｌ）を使用した以外は、実施例３と同様の裏金２としての条片を準備した。 Example 11
A strip as a back metal 2 similar to Example 3 was prepared except that an austenitic stainless steel plate (SUS316L) was used.
　２００メッシュ（７４μｍ）の篩を通過する粒度のアトマイズオーステナイト系ステンレス粉末（ＳＵＳ３１６Ｌ：炭素０．０２５質量％、珪素０．７８質量％、マンガン０．２４質量％、燐０．０２３質量％、硫黄０．００４質量％、ニッケル１２．６０質量％、クロム１６．１０質量％、モリブデン２．４７質量％、残部鉄）４０質量％と、実施例１と同様のアトマイズニッケル－１１質量％燐合金粉末６０質量％とを実施例１と同様にして作製した混合粉末をもって、実施例３と同様の方法で、裏金２としてのオーステナイト系ステンレス鋼板の条片の一方の面に、厚さ０．３ｍｍのオーステナイト系ステンレス粉末４０質量％及びニッケル－１１質量％燐合金粉末６０質量％を含む混合粉末の焼結合金からなる多孔質焼結合金層３を一体的に接合した複層摺動部材１を作製した。 Atomized austenitic stainless steel powder (SUS316L: carbon 0.025% by mass, silicon 0.78% by mass, manganese 0.24% by mass, phosphorus 0.023% by mass, sulfur 0 with a particle size passing through a 200 mesh (74 μm) sieve .004% by mass, nickel 12.60% by mass, chromium 16.10% by mass, molybdenum 2.47% by mass, balance iron 40% by mass, and the same atomized nickel-11% by mass phosphorus alloy powder 60 as in Example 1. Using the mixed powder produced in the same manner as in Example 1 in the same manner as in Example 3, an austenite having a thickness of 0.3 mm is formed on one surface of the strip of an austenitic stainless steel plate as the back metal 2 in the same manner as in Example 3. Porous sintered alloy layer 3 made of a sintered alloy of a mixed powder containing 40% by mass of stainless steel powder and 60% by mass of nickel-11% by mass phosphorus alloy powder To prepare a multilayered sliding member 1 which is integrally joined.
　実施例１２
　マルテンサイト系ステンレス鋼板（ＳＵＳ４１０）を使用した以外は、実施例３と同様の裏金２としての条片を準備した。 Example 12
A strip as a back metal 2 similar to Example 3 was prepared except that a martensitic stainless steel plate (SUS410) was used.
　２００メッシュ（７４μｍ）の篩を通過する粒度のアトマイズマルテンサイト系ステンレス粉末（ＳＵＳ４１０：炭素０．００７質量％、珪素０．７６質量％、マンガン０．１５質量％、ニッケル０．１５質量％、クロム１１．５０質量％、残部鉄）４０質量％と、アトマイズニッケル－１１質量％燐合金粉末６０質量％とを実施例１と同様の方法で作製した混合粉末をもって、実施例３と同様の方法で、裏金２としてのマルテンサイト系ステンレス鋼板の条片の一方の面に、厚さ０．３ｍｍのマルテンサイト系ステンレス粉末４０質量％及びニッケル－１１質量％燐合金粉末６０質量％を含む混合粉末の焼結合金からなる多孔質焼結合金層３を一体的に接合した複層摺動部材１を作製した。 Atomized martensitic stainless steel powder with a particle size passing through a 200 mesh (74 μm) sieve (SUS410: carbon 0.007% by mass, silicon 0.76% by mass, manganese 0.15% by mass, nickel 0.15% by mass, chromium 11. 50% by mass, balance iron) 40% by mass and atomized nickel-11% by mass Phosphor alloy powder 60% by mass with a mixed powder produced in the same manner as in Example 1, and in the same manner as in Example 3. A mixed powder containing 40% by mass of a martensitic stainless steel powder having a thickness of 0.3 mm and 60% by mass of nickel-11% by mass phosphorus alloy powder is formed on one surface of a strip of a martensitic stainless steel plate as the backing metal 2. A multilayer sliding member 1 in which a porous sintered alloy layer 3 made of a sintered alloy was integrally joined was produced.
　実施例１３
　実施例８と同様の多孔質焼結合金層３とを備えた複層摺動部材１を使用した。 Example 13
A multilayer sliding member 1 having the same porous sintered alloy layer 3 as in Example 8 was used.
　硫酸バリウム１５質量％、ピロリン酸カルシウム１０質量％、ポリイミド樹脂２質量％、黒鉛０．５質量％及び残部ポリテトラフルオロエチレン樹脂をヘンシェルミキサー内に供給して攪拌混合し、得られた混合物１００重量部に対し石油系溶剤２０重量部を配合し、ポリテトラフルオロエチレン樹脂の室温転移点以下の温度（１５℃）で混合し、合成樹脂組成物を得た。この合成樹脂組成物を多孔質焼結合金層３の一方の面に散布供給し、ローラで圧延して多孔質焼結合金層３の孔隙および一方の面に合成樹脂組成物を充填固着した。ついで、２００℃の温度に加熱した熱風乾燥炉中に５分間保持して溶剤を除去した後、乾燥した合成樹脂組成物をローラによって加圧力４００ｋｇｆ／ｃｍ２にて圧延し、多孔質焼結合金層３の孔隙及び一方の面に厚さ０．０５ｍｍの合成樹脂を含んだ被覆層４を形成した後、これを加熱炉で３７０℃、１０分間加熱焼成した後、再度、ローラで加圧処理し、寸法調整およびうねり等の矯正を行なって、裏金２としてのオーステナイト系ステンレス鋼板の条片の一方の面に、厚さ０．３ｍｍのオーステナイト系ステンレス粉末４０質量％及びニッケル－１１質量％燐合金粉末６０質量％を含む混合粉末の焼結合金からなる多孔質焼結合金層３が一体的に接合されていると共に多孔質焼結合金層３の孔隙及び一方の面に硫酸バリウム１５質量％及びピロリン酸カルシウム１０質量％並びにポリイミド樹脂２質量％、黒鉛０．５質量％及び残部ポリテトラフルオロエチレン樹脂からなる合成樹脂を含む被覆層４を、実施例８と同様の多孔質焼結合金層３に加えて更に備えた複層摺動部材５を作製した。 Barium sulfate 15% by mass, calcium pyrophosphate 10% by mass, polyimide resin 2% by mass, graphite 0.5% by mass and the remainder polytetrafluoroethylene resin were fed into a Henschel mixer and stirred and mixed, and the resulting mixture 100 parts by weight 20 parts by weight of a petroleum-based solvent was blended and mixed at a temperature (15 ° C.) below the room temperature transition point of the polytetrafluoroethylene resin to obtain a synthetic resin composition. This synthetic resin composition was sprayed and supplied to one surface of the porous sintered alloy layer 3 and rolled with a roller to fill and fix the synthetic resin composition in the pores and one surface of the porous sintered alloy layer 3. Then, after removing the solvent by holding in a hot air drying furnace heated to a temperature of 200 ° C. for 5 minutes, the dried synthetic resin composition was rolled with a roller at a pressure of 400 kgf / cm 2 to obtain a porous sintered alloy. After forming the coating layer 4 containing a synthetic resin having a thickness of 0.05 mm on the pores and one surface of the layer 3, the coating layer 4 was heated and baked at 370 ° C. for 10 minutes in a heating furnace, and then again pressed with a roller. Then, after adjusting the dimensions and correcting the waviness, 40% by mass of austenitic stainless steel powder having a thickness of 0.3 mm and 11% by mass of nickel are formed on one surface of the strip of the austenitic stainless steel plate as the back metal 2. A porous sintered alloy layer 3 made of a sintered alloy of a mixed powder containing 60% by mass of alloy powder is integrally joined, and the pores of the porous sintered alloy layer 3 and 15% by mass of barium sulfate on one surface thereof. And 10% by mass of calcium pyrophosphate, 2% by mass of polyimide resin, 0.5% by mass of graphite, and a coating layer 4 containing a synthetic resin composed of the remaining polytetrafluoroethylene resin, In addition to this, a multilayer sliding member 5 further provided was prepared.
　実施例１から１３において、実施例１及び２の多孔質焼結合金層３では、鉄粉末の焼結体が、実施例３から６の多孔質焼結合金層３では、フェライト系ステンレス粉末の焼結体が、実施例７から１１及び実施例１３の多孔質焼結合金層３では、オーステナイト系ステンレス粉末の焼結体が、実施例１２の多孔質焼結合金層３では、マルテンサイト系ステンレス粉末の焼結体が夫々マトリックス相を構成し、ニッケル－１１質量％燐合金粉末の液相がマトリックス相の粒界に晶出した分散相を構成していることを顕微鏡写真にて確認した。 In Examples 1 to 13, in the porous sintered alloy layer 3 of Examples 1 and 2, the sintered body of iron powder is made of ferritic stainless steel powder in the porous sintered alloy layer 3 of Examples 3 to 6. In the porous sintered alloy layer 3 of Examples 7 to 11 and Example 13, the sintered body is an austenitic stainless powder sintered body, and in the porous sintered alloy layer 3 of Example 12, the martensite system. It was confirmed by micrographs that the sintered bodies of the stainless steel powder each constituted a matrix phase, and the liquid phase of the nickel-11 mass% phosphorus alloy powder constituted a dispersed phase crystallized at the grain boundary of the matrix phase. .
　比較例１
　実施例１と同様の一方の面にニッケル皮膜を施した条片を裏金２とした。 Comparative Example 1
A strip having a nickel coating on one surface similar to that of Example 1 was used as a backing metal 2.
　３５０メッシュ（４４μｍ）の篩を通過する粒度のアトマイズ錫（Ｓｎ）粉末１０重量％と、１５０メッシュ（９７μｍ）の篩を通過する粒度の電解銅（Ｃｕ）粉末９０質量％とを２０分間Ｖ型ミキサーで混合して作製した混合粉末を裏金２としての条片のニッケル皮膜の一方の面に一様な厚さに散布し、これを水素・窒素混合ガス（２５ｖｏｌ％Ｈ２－７５ｖｏｌ％Ｎ２）の還元性雰囲気に調整した加熱炉内で８６０℃の温度で１０分間焼結し、裏金２の一方の面に、厚さ０．３ｍｍの錫１０質量％及び残部銅からなる多孔質焼結合金層３が一体的に接合された複層摺動部材１を作製した。 10% by weight of atomized tin (Sn) powder passing through a 350 mesh (44 μm) sieve and 90% by weight of electrolytic copper (Cu) powder passing through a 150 mesh (97 μm) sieve for 20 minutes The mixed powder prepared by mixing with a mixer was sprayed on one side of the nickel film of the strip as the back metal 2 to a uniform thickness, and this was mixed with a hydrogen / nitrogen mixed gas (25 vol% H 2 -75 vol% N 2). ) Is sintered for 10 minutes at a temperature of 860 ° C. in a heating furnace adjusted to a reducing atmosphere, and a porous sintered bond comprising 10% by mass of tin with a thickness of 0.3 mm and the remaining copper on one surface of the back metal 2. A multilayer sliding member 1 in which the gold layer 3 was integrally joined was produced.
　比較例２
　比較例１と同様の複層摺動部材１に、当該複層摺動部材１の多孔質焼結合金層３の孔隙及び一方の面に実施例１３と同様の被覆層４を更に備えた複層摺動部材５を作製した。 Comparative Example 2
A multilayer sliding member 1 similar to Comparative Example 1 is further provided with a coating layer 4 similar to that of Example 13 on the pores and one surface of the porous sintered alloy layer 3 of the multilayer sliding member 1. A layer sliding member 5 was produced.
　次に、実施例１から１３並びに比較例１及び２からなる複層摺動部材１及び５について、摩擦摩耗特性を試験した。 Next, the frictional wear characteristics of the multilayer sliding members 1 and 5 comprising Examples 1 to 13 and Comparative Examples 1 and 2 were tested.
　＜摩擦摩耗特性についての試験条件及び試験方法＞
　＜試験条件＞
　速度　１．３ｍ／ｍｉｎ
　荷重（面圧）　２００～５００ｋｇｆ／ｃｍ２
　試験時間　２０時間
　相手材　機械構造用炭素鋼（Ｓ４５Ｃ）
　潤滑　油（出光興産社製の商品名「ダフニースーパーマルチオイル＃３２」）中条件
　＜試験方法＞
　図３に示すように、実施例１から１３並びに比較例１及び２の複層摺動部材１及び５から作製された一辺が３０ｍｍの方形状の板状軸受試験片１１を試験台に固定し、相手材となる円筒体１２から板状軸受試験片１１の一方の面１３に、当該面１３に直交する方向Ａの所定の荷重をかけながら、円筒体１２を当該円筒体１２の軸心１４の周りで方向Ｂに回転させ、板状軸受試験片１１と円筒体１２との間の摩擦係数及び２０時間試験後の面１３の摩耗量を測定した。 <Test conditions and test method for friction and wear characteristics>
<Test conditions>
Speed 1.3m / min
Load (surface pressure) 200-500kgf / cm 2
Test time 20 hours Mating material Carbon steel for machine structure (S45C)
Conditions in lubricating oil (trade name “Daphney Super Multi Oil # 32” manufactured by Idemitsu Kosan Co., Ltd.) <Test Method>
As shown in FIG. 3, a rectangular plate-shaped bearing test piece 11 having a side of 30 mm made from the multilayer sliding members 1 and 5 of Examples 1 to 13 and Comparative Examples 1 and 2 is fixed to a test stand. While applying a predetermined load in the direction A perpendicular to the surface 13 from the cylindrical body 12 as the counterpart material to the one surface 13 of the plate bearing test piece 11, the cylindrical body 12 is connected to the axial center 14 of the cylindrical body 12. Was rotated in the direction B, and the coefficient of friction between the plate-shaped bearing test piece 11 and the cylindrical body 12 and the wear amount of the surface 13 after the 20-hour test were measured.
　試験結果を表１から４に示す。 Test results are shown in Tables 1 to 4.
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000003
Figure JPOXMLDOC01-appb-T000003
Figure JPOXMLDOC01-appb-T000004
Figure JPOXMLDOC01-appb-T000004
　表１から４に示す摩擦係数は、試験開始後の安定した摺動時における値である。スラスト試験において、比較例１の複層摺動部材は、面圧２００ｋｇｆ／ｃｍ２の条件で摩擦係数が０．３０と高い値を示したため、また、比較例２の複層摺動部材は、面圧２００ｋｇｆ／ｃｍ２の条件で摩耗量が２６０μｍと非常に大きな値を示したため、夫々それ以上の試験を中止した。 The friction coefficients shown in Tables 1 to 4 are values at the time of stable sliding after the start of the test. In the thrust test, the multilayer sliding member of Comparative Example 1 showed a high friction coefficient of 0.30 under the condition of a surface pressure of 200 kgf / cm 2 , and the multilayer sliding member of Comparative Example 2 was Since the wear amount was a very large value of 260 μm under the condition of a surface pressure of 200 kgf / cm 2 , further tests were stopped.
　表１から４に示す試験結果から、本発明に係る複層摺動部材１及び５は、潤滑油中において、面圧が２００～５００ｋｇｆ／ｃｍ２の高面圧条件下においても、優れた摺動特性と大幅に向上した耐荷重性とを有することが分かる。 From the test results shown in Tables 1 to 4, the multi-layer sliding members 1 and 5 according to the present invention have excellent sliding properties even under high surface pressure conditions of 200 to 500 kgf / cm 2 in the lubricating oil. It can be seen that it has dynamic characteristics and greatly improved load bearing capability.
　１、５　複層摺動部材
　２　裏金
　３　多孔質焼結合金層
　４　被覆層 1, 5 Multi-layer sliding member 2 Back metal 3 Porous sintered alloy layer 4 Coating layer

Claims (10)

  1. 　鋼板を有した裏金と、この裏金の一方の面に一体的に接合されていると共に鉄又は鉄基合金３０～６０質量％及びニッケル－燐合金４０～７０質量％を含む多孔質焼結合金層とを具備した複層摺動部材。 A backing metal having a steel plate, and a porous sintered alloy layer integrally bonded to one surface of the backing metal and containing 30 to 60% by mass of iron or an iron-based alloy and 40 to 70% by mass of a nickel-phosphorus alloy A multilayer sliding member comprising:
  2. 　多孔質焼結合金層は、鉄又は鉄基合金の焼結合金からなるマトリックス相と、このマトリックス相の粒界に晶出したニッケル－燐合金の分散相とを含んでいる請求項１に記載の複層摺動部材。 The porous sintered alloy layer includes a matrix phase made of a sintered alloy of iron or an iron-base alloy and a dispersed phase of a nickel-phosphorus alloy crystallized at a grain boundary of the matrix phase. Multi-layer sliding member.
  3. 　ニッケル－燐合金は、燐１０～１２質量％とニッケルの残部とからなる請求項１又は２に記載の複層摺動部材。 The multilayer sliding member according to claim 1 or 2, wherein the nickel-phosphorus alloy is composed of 10 to 12% by mass of phosphorus and the remainder of nickel.
  4. 　鋼板は、フェライト系、オーステナイト系又はマルテンサイト系のステンレス鋼板かなり、裏金の一方の面は、このステンレス鋼板の一方の面である請求項１から３のいずれか一項に記載の複層摺動部材。 The multi-layer sliding according to any one of claims 1 to 3, wherein the steel plate is a ferritic, austenitic or martensitic stainless steel plate, and one surface of the back metal is one surface of the stainless steel plate. Element.
  5. 　鋼板は、フェライト系、オーステナイト系又はマルテンサイト系のステンレス鋼板からなり、裏金は、このステンレス鋼板の一方の面を被覆したニッケル皮膜を更に具備しており、裏金の一方の面は、このニッケル皮膜の一方の面である請求項１から３のいずれか一項に記載の複層摺動部材。 The steel plate is made of a ferritic, austenitic, or martensitic stainless steel plate, and the back metal further comprises a nickel coating covering one surface of the stainless steel plate, and one surface of the back metal is the nickel coating. The multilayer sliding member according to any one of claims 1 to 3, wherein the multilayer sliding member is one of the surfaces.
  6. 　鋼板は、一般構造用圧延鋼板又は冷間圧延鋼板からなり、裏金の一方の面は、この一般構造用圧延鋼板又は冷間圧延鋼板の一方の面である請求項１から３のいずれか一項に記載の複層摺動部材。 The steel plate is made of a general structural rolled steel plate or a cold rolled steel plate, and one surface of the back metal is one surface of the general structural rolled steel plate or cold rolled steel plate. The multilayer sliding member as described in 2.
  7. 　鋼板は、一般構造用圧延鋼板又は冷間圧延鋼板からなり、裏金は、この一般構造用圧延鋼板又は冷間圧延鋼板の一方の面を被覆したニッケル皮膜を更に具備しており、裏金の一方の面は、このニッケル皮膜の一方の面である請求項１から３のいずれか一項に記載の複層摺動部材。 The steel plate is composed of a general structural rolled steel plate or a cold rolled steel plate, and the back metal further comprises a nickel coating covering one surface of the general structural rolled steel plate or cold rolled steel plate, The multilayer sliding member according to any one of claims 1 to 3, wherein the surface is one surface of the nickel coating.
  8. 　鉄基合金は、フェライト系、オーステナイト系又はマルテンサイト系ステンレス鋼からなる請求項１から７のいずれか一項に記載の複層摺動部材。 The multilayer sliding member according to any one of claims 1 to 7, wherein the iron-based alloy is made of a ferritic, austenitic, or martensitic stainless steel.
  9. 　多孔質焼結合金層の孔隙及び一方の面に充填固着されていると共に少なくとも合成樹脂を含む被覆層を更に具備している請求項１から８のいずれか一項に記載の複層摺動部材。 The multilayer sliding member according to any one of claims 1 to 8, further comprising a coating layer that is filled and fixed to the pores and one surface of the porous sintered alloy layer and includes at least a synthetic resin. .
  10. 　合成樹脂は、フッ素樹脂、ポリアセタール樹脂、ポリアミド樹脂、ポリフェニレンサルファイド樹脂、ポリエーテルエーテルケトン樹脂及びポリアミドイミド樹脂から選択される少なくとも一つの主成分と、ポリイミド樹脂、焼成フェノール樹脂、ポリフェニレンスルホン樹脂及びオキシベンゾイルポリエステル樹脂から選択される少なくとも一つの追加成分とを含んでいる請求項９に記載の複層摺動部材。
    　     The synthetic resin includes at least one main component selected from a fluororesin, a polyacetal resin, a polyamide resin, a polyphenylene sulfide resin, a polyether ether ketone resin, and a polyamideimide resin, a polyimide resin, a baked phenol resin, a polyphenylene sulfone resin, and oxybenzoyl. The multilayer sliding member according to claim 9, comprising at least one additional component selected from polyester resins.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110681865A (en) * 2019-10-14 2020-01-14 融之航信息科技（苏州）有限公司 Structure of fluoroplastic metal belt
EP4265356A4 (en) * 2020-12-25 2024-06-26 Senju Metal Industry Co., Ltd. Sliding member, bearing, sliding member manufacturing method, and bearing manufacturing method
US12031579B2 (en) 2020-12-25 2024-07-09 Senju Metal Industry Co., Ltd. Sliding member, bearing, sliding member manufacturing method, and bearing manufacturing method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6893836B2 (en) 2017-07-03 2021-06-23 オイレス工業株式会社 Multi-layer sintered plate and its manufacturing method
CN110936642A (en) * 2019-10-14 2020-03-31 融之航信息科技（苏州）有限公司 Composite sintering process for fluoroplastic metal band material

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5884973A (en) * 1981-11-13 1983-05-21 N D C Kk Production of composite material consisting basically of stainless steel plate or the like
JPH07138601A (en) * 1993-11-18 1995-05-30 Kawasaki Steel Corp High cr alloy steel powder for wear resistant sintering material and its mixture
JPH11293304A (en) * 1998-04-08 1999-10-26 Komatsu Ltd Double-layered sintered sliding member and its production
JP2002146410A (en) * 2000-11-14 2002-05-22 Daido Metal Co Ltd Iron-based sliding material fitted with steel back plate
JP2004143580A (en) * 2002-08-28 2004-05-20 Oiles Ind Co Ltd Bearing material for porous hydrostatic gas bearing, and porous hydrostatic gas bearing obtained by using the same
JP2015183236A (en) * 2014-03-24 2015-10-22 大同メタル工業株式会社 Slide member
JP2015218344A (en) * 2014-05-14 2015-12-07 大同メタル工業株式会社 Sliding member
JP2016109235A (en) * 2014-12-08 2016-06-20 大同メタル工業株式会社 Slide member

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5884973A (en) * 1981-11-13 1983-05-21 N D C Kk Production of composite material consisting basically of stainless steel plate or the like
JPH07138601A (en) * 1993-11-18 1995-05-30 Kawasaki Steel Corp High cr alloy steel powder for wear resistant sintering material and its mixture
JPH11293304A (en) * 1998-04-08 1999-10-26 Komatsu Ltd Double-layered sintered sliding member and its production
JP2002146410A (en) * 2000-11-14 2002-05-22 Daido Metal Co Ltd Iron-based sliding material fitted with steel back plate
JP2004143580A (en) * 2002-08-28 2004-05-20 Oiles Ind Co Ltd Bearing material for porous hydrostatic gas bearing, and porous hydrostatic gas bearing obtained by using the same
JP2015183236A (en) * 2014-03-24 2015-10-22 大同メタル工業株式会社 Slide member
JP2015218344A (en) * 2014-05-14 2015-12-07 大同メタル工業株式会社 Sliding member
JP2016109235A (en) * 2014-12-08 2016-06-20 大同メタル工業株式会社 Slide member

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110681865A (en) * 2019-10-14 2020-01-14 融之航信息科技（苏州）有限公司 Structure of fluoroplastic metal belt
EP4265356A4 (en) * 2020-12-25 2024-06-26 Senju Metal Industry Co., Ltd. Sliding member, bearing, sliding member manufacturing method, and bearing manufacturing method
US12031579B2 (en) 2020-12-25 2024-07-09 Senju Metal Industry Co., Ltd. Sliding member, bearing, sliding member manufacturing method, and bearing manufacturing method

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