EP3577244A1 - Élément de palier lisse multicouche - Google Patents

Élément de palier lisse multicouche

Info

Publication number
EP3577244A1
EP3577244A1 EP18721667.6A EP18721667A EP3577244A1 EP 3577244 A1 EP3577244 A1 EP 3577244A1 EP 18721667 A EP18721667 A EP 18721667A EP 3577244 A1 EP3577244 A1 EP 3577244A1
Authority
EP
European Patent Office
Prior art keywords
aluminum
layer
weight
based alloy
bearing element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP18721667.6A
Other languages
German (de)
English (en)
Inventor
Lukas HÄDICKE
Sigmar Dominic Josef JANISCH
Alexander POSCHER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miba Gleitlager Austria GmbH
Original Assignee
Miba Gleitlager Austria GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miba Gleitlager Austria GmbH filed Critical Miba Gleitlager Austria GmbH
Publication of EP3577244A1 publication Critical patent/EP3577244A1/fr
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/003—Alloys based on aluminium containing at least 2.6% of one or more of the elements: tin, lead, antimony, bismuth, cadmium, and titanium
    • 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
    • F16C33/122—Multilayer structures of sleeves, washers or liners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B32B15/012—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of aluminium or an aluminium alloy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/12—Alloys based on aluminium with copper as the next major constituent
    • C22C21/14—Alloys based on aluminium with copper as the next major constituent with silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/12—Alloys based on aluminium with copper as the next major constituent
    • C22C21/18—Alloys based on aluminium with copper as the next major constituent with zinc
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • 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
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • F16C33/121—Use of special materials
    • 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
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/20—Alloys based on aluminium
    • F16C2204/22—Alloys based on aluminium with tin as the next major constituent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12736—Al-base component
    • Y10T428/1275—Next to Group VIII or IB metal-base component
    • Y10T428/12757—Fe

Definitions

  • the invention relates to a multilayer sliding bearing element with a supporting layer and a layer of an aluminum-based alloy arranged thereon with aluminum as the main constituent.
  • WO 97/22725 A1 describes an aluminum alloy for a layer of a plain bearing, the main alloying element being tin and a hard material comprising at least one element of a first containing iron, manganese, nickel, chromium, cobalt, copper or platinum, magnesium, antimony Element group is added, wherein the aluminum alloy of the first element group, an amount of elements for forming intermetallic phases, eg Aluminum, is added in the boundary regions of the matrix and further at least one further element of a second manganese, antimony, chromium, tungsten, niobium, vanadium, cobalt, silver, molybdenum or zirconium-containing element group for substituting a part of at least one hard material of the first Element group is added to form approximately spherical or cube-shaped aluminides.
  • the Al-Sn Legacy may contain at least one of the following components, the amount by weight: 0.01 to 3% Mn, Mg, V, Ni, Cr, Zr and / or B, 0.2 to 5% Cu, 0, 1 to 3% Pb, 0, 1 to 3% Sb and 0.01 to 1% Ti. It can further be provided that the aluminum alloy of the intermediate bond layer in total up to 3 wt .-% of at least one of the elements Si, Cr, Ti and Contains Fe.
  • the object of the present invention is to provide a multi-layered sliding bearing element with an aluminum-based alloy in which the aluminum-based alloy has good adhesion to the backing layer and exhibits a low notch effect.
  • the object of the invention is achieved with the abovementioned multilayer sliding bearing element, in which the aluminum-based alloy contains between 0% by weight and 7% by weight of tin, between 1.1% by weight and 1.9% by weight of copper, between 0 , 4 wt .-% and 1 wt .-% manganese, between 0.05 wt .-% and 0, 18 wt .-% cobalt, between 0.05 wt .-% and 0.18 wt .-% chromium, between 0.03% by weight and 0.1% by weight of titanium, between 0.05% by weight and 0.18% by weight of zirconium and between 0% by weight and 0.4% by weight Containing silicon and the remainder to 100 wt .-% aluminum and optionally from the production of the elements form impurities, with the proviso that in any case tin or silicon is contained in the aluminum-based alloy.
  • the advantage here is that the risk of brittle fracture at the interface between the support element and the layer of the aluminum-based alloy due to formed brittle phases can be reduced by the low proportion of alloying elements present in addition to aluminum and tin in the alloy.
  • the aluminum base alloy thus has, over time, less tendency for brittle fracture (chipping) and thus better adhesion to the backing layer.
  • This effect can be further enhanced if the aluminum-based alloy contains silicon which, as a reaction inhibitor, improves the prevention of the formation of brittle phases.
  • the relative proportion of silicon on the aluminum-based alloy is not so great that it is tribologically effective, whereby the notch effect can be prevented.
  • the tribological properties of known silicon-free aluminum-based alloy can be at least approximately achieved with the aluminum-based alloy, whereby the composite fatigue strength of the multilayer plain bearing element can be improved.
  • the supporting layer consists of an iron-based alloy and that the aluminum-based alloy is directly connected to the iron-based supporting layer and consists of 5% by weight to 7% by weight tin, 1.1% by weight.
  • a concentration gradient to be formed within the layer of the aluminum-based alloy for silicon, with increasing silicon content in the direction of the support layer. It can be achieved by concentrating, at least for the most part, the effect of adding silicon on the bonding zone between the backing layer and the aluminum base alloy layer, and that the avoidance of tribological efficacy of the silicon in the aluminum base alloy can be more easily realized so that immediately adjacent to a sliding contact areas of the aluminum-based alloy can be formed free of silicon.
  • the support layer consists of an iron-based alloy and that the aluminum-based alloy is directly connected to the iron-based support layer and from 1.5 wt .-% to 1.9 wt .-% copper , 0.6% by weight to 1.0% by weight of manganese, 0.08% by weight to 0, 18 wt.% cobalt, 0.08 wt.% to 0.18 wt.% chromium, 0.03 wt.% to 0.10 wt.% titanium, 0.08 wt.
  • the layer of the aluminum-base alloy is connected to a further layer of a further aluminum-based alloy, wherein the further layer consists of the further aluminum-based alloy which is free of silicon.
  • the further layer of the further aluminum-based alloy can be better adapted to the tribological requirements of a running layer.
  • the layer of the aluminum-based alloy arranged between the support layer and the further layer of the further aluminum alloy thus has emergency running properties which counteract a sudden failure of the multilayer sliding bearing element as a result of at least partial wear of the further layer arranged above it.
  • the further aluminum-based alloy of the further layer of 5.0 wt .-% to 7.0 wt .-% tin, 1, 1
  • the aluminum-based alloy of the layer directly connected to the iron-based support layer and the further aluminum-based alloy of the further layer with respect to the elements copper, manganese, cobalt, chromium, titanium and zirconium preferably have the same relative proportion based on the respective aluminum fraction on. This results in better material compatibility of the two aluminum base alloys with one another.
  • the ratio of the proportions of titanium to cobalt is between 1: 3 and 3: 1 is.
  • the aluminum-based alloy thus has a fine-grained structure, which has only a slight tendency to recrystallise even under the conditions during use of the multilayer sliding bearing element.
  • Layer and in the other aluminum alloy of the further layer intermetallic precipitates are present. It may be provided that an average size of the intermetallic precipitates in the aluminum alloy of the layer directly connected to the iron-based support layer is smaller than an average size of the intermetallic precipitates in the further aluminum alloy of the further layer. It can be achieved by making the aluminum-based alloy of the layer bonded to the iron-based backing layer tougher. This, in turn, has a positive effect on the changeability of the multilayer sliding bearing element, since this aluminum-based alloy thus does not have a crack-triggering effect. It can also be used to reduce the notch effect of the intermetallic phases.
  • titanium is replaced by zirconium and / or scandium to a maximum of half the titanium content of the aluminum-based alloy and / or that at least one element of the group manganese, cobalt and chromium in each case a maximum of half the proportion of these elements on the Aluminum-based alloy is replaced by vanadium and / or molybdenum and / or iron.
  • the particle size distribution or the recrystallization behavior of the aluminum-based alloy can be influenced.
  • Fig. 1 shows a multi-layer sliding bearing element 1 in an oblique view.
  • the multilayer sliding bearing element 1 comprises a support layer 2 and a layer 3 arranged thereon and connected thereto.
  • the non-closed multi-layer sliding bearing element 1 in addition to the illustrated half-shell design with an angular coverage of at least approximately 180 ° and a deviating angular range coverage have, for example, at least approximately 120 ° or at least approximately 90 °, so so the Mehr harshgleitla- gerelement 1 also may be formed as a third shell or as a quarter shell, which are combined with corresponding further bearing shells in a bearing receptacle, wherein the multi-layer sliding bearing element 1 is preferably installed according to the invention in the higher loaded area of the bearing receptacle.
  • other embodiments of the multi-layer sliding bearing element 1 are also possible, for example a design as a bearing bush, as indicated by dashed lines in FIG. 1, or a planar design, for example as a starting disk.
  • the support layer 2 is usually made of a hard material.
  • materials for the support layer 2 also called support shell, bronzes, brass, etc. can be used.
  • the support layer 2 is an iron-based material, in particular of a steel.
  • Such constructive structures of multilayer sliding bearing elements 1 are known in principle from the prior art, so reference is made in this regard to the relevant prior art.
  • the layer 3 is made of aluminum-based alloy.
  • the aluminum-based alloy consists of:
  • the aluminum-based alloy contains tin or silicon.
  • tin 7% by weight of tin: At more than 7% by weight of tin, the risk of hot cracking sensitivity of the aluminum-based alloy increases. 1.9% by weight of copper: With more than 1.9% by weight of copper, the formability of the aluminum-base alloy is reduced. 0.1% by weight of titanium: With more than 0.1% by weight of titanium, corrosion problems can occur which can reduce the fatigue strength of the aluminum-based alloy. In addition, it has been observed that squeezing of the tin can be avoided as compared to known sputtering layers.
  • Titanium can also be replaced by zirconium and / or scandium up to half of the abovementioned titanium content of the aluminum-based alloy.
  • At least one element of the group manganese, cobalt and chromium to be replaced by vanadium and / or molybdenum and / or iron to the extent of not more than half of the above-mentioned proportion of these elements on the aluminum-based alloy.
  • the multilayer sliding bearing element 1 consists of the supporting layer 2 of an iron-based alloy, in particular a steel, and the layer 3 of the aluminum-based alloy arranged directly thereon and connected to the supporting layer 2.
  • the latter in this case preferably consists of 5 wt .-% to 7 wt .-% tin, 1.1 wt .-% to 1.5 wt .-% copper, 0.4 wt .-% to 0.8 wt. % Manganese, 0.05% to 0.15% cobalt, 0.05% to 0.15% chromium, 0.03% to 0.10% by weight % Titanium, 0.05% to 0.15% zirconium, 0.2% to 0.4% silicon by weight.
  • the aluminum base alloy of this embodiment may consist of 6% by weight of tin, 1.3% by weight of copper, 0.6% by weight of manganese, 0.10% by weight of cobalt, 0.10% by weight of chromium, 0.07% by weight of titanium, 0.10% by weight of zirconium, 0.3% by weight of silicon and the remainder to 100% by weight of aluminum and optionally impurities resulting from the preparation of the elements.
  • a concentration gradient is formed for silicon within the layer 3 of the aluminum-based alloy, with increasing silicon content in the direction of the support layer 2.
  • the concentration of silicon in the layer 3 can be from 0 wt. -% on the outside, ie the surface of the layer 3 facing away from the support layer 2 increases to a value of 0.3% by weight of the surface resting on the support layer 2.
  • the increase in the silicon concentration can be linear or exponential or sudden.
  • the supporting layer 2 consists of an iron-based alloy and the aluminum base alloy forming the layer 3 is directly connected to the iron-based supporting layer 2.
  • a further layer 4 is arranged, as shown by dashed lines in Fig. 1, so that therefore the layer 3 between the support layer 2 and the further layer 4 is arranged.
  • the further layer 4 is arranged directly on the layer 3 and connected thereto.
  • the layer 3 which is directly connected to the support layer 2 not the running layer of the multilayer bearing element 1, but a layer with which the, the running layer forming further layer 4 of the further aluminum-based alloy with the support layer 2 is connected becomes.
  • the aluminum base alloy of the layer 3 directly connected to the support layer 2 in this case consists of 1.5% by weight to 1.9% by weight of copper, 0.6% by weight to 1.0% by weight of manganese, 0.08 wt .-% to 0, 18 wt .-% cobalt, 0.08 wt .-% to 0, 18 wt .-% chromium, 0.03 wt .-% to 0, 10 wt .-% of titanium , 0.08 wt .-% to 0.18 wt .-% zirconium, 0.2 wt .-% to 0.4 wt .-% silicon and the balance to 100 wt .-% of aluminum and optionally from the production contaminants originating from the elements.
  • this can Layer 3 aluminum base alloy of 1.7 wt% copper, 0.8 wt% manganese, 0.13 wt% cobalt, 0.13 wt% chromium, 0.07 wt% titanium, 0, 13 wt .-% zirconium, 0.3 wt .-% silicon and the balance to 100 wt .-% of aluminum and optionally resulting from the production of the elements consist of impurities.
  • the further aluminum-based alloy of the further layer 4 is silicon-free except for admissible impurities of the metals from which the aluminum-based alloy is produced. Otherwise, it may consist of an aluminum-based alloy, as known from the prior art for running layers of plain bearings.
  • the further layer 4 preferably consists of a further aluminum-based alloy which comprises from 5.0% by weight to 7.0% by weight of tin, 1.1% by weight to 1.5% by weight of copper, 0, 4 wt .-% to 0.8 wt .-% manganese, 0.05 wt .-% to 0, 15 wt .-% cobalt, 0.05 wt .-% to 0.15 wt -% chromium, 0, 03 wt .-% to 0, 1 wt .-% titanium, 0.05 wt .-% to 0.15 wt .-% zirconium and the remainder to 100 wt .-% of aluminum and optionally from the production of the elements derived Impurities.
  • a further aluminum-based alloy which comprises from 5.0% by weight to 7.0% by weight of tin, 1.1% by weight to 1.5% by weight of copper, 0, 4 wt .-% to 0.8 wt .-% manganese, 0.05 wt
  • the further layer 4 consists of a further aluminum-based alloy which consists of 6.0% by weight of tin, 1.3% by weight of copper, 0.6% by weight of manganese, 0.10% by weight of cobalt, 0, 10% by weight of chromium, 0.07% by weight of titanium, 0 to 10% by weight of zirconium and the remainder to 100% by weight of aluminum and, if appropriate, any impurities resulting from the preparation of the elements.
  • the aluminum-based alloy of the layer 3 bonded directly to the iron-based support layer 2 and the further aluminum-based alloy of the further layer 4 are the same relative to the elements copper, manganese, cobalt, chromium, titanium and zirconium Quantity on, ie that the ratio of the proportions of these elements based on the aluminum content in the two aluminum alloys is the same.
  • intermetallic precipitates are present in each case in the aluminum-based alloy of the layer 3 directly connected to the iron-based support layer 2 and in the further aluminum-based alloy of the further layer 4, wherein an average size of the intermetallic precipitates in the aluminum-based alloy directly with the Iron-based support layer 2 connected layer 3 is smaller than a mean size of the intermetallic precipitates in the other aluminum-based alloy of the further layer. 4
  • the average size is determined as the arithmetic mean value from the micrograph of the respective aluminum-based alloy according to the line-cut method, as is known per se. For this purpose, lines with a defined distance are applied via the microscopic image. At each point where the line crosses a grain boundary, a mark is made.
  • the determination of the average size of the intermetallic precipitates can be carried out analogously to DIN EN ISO 643.
  • the intermetallic precipitates are compounds of the elements copper and / or manganese and / or cobalt and / or chromium and / or titanium and / or zirconium in each case with aluminum and / or of the elements with one another.
  • these are the intermetallic compounds AhCu, Al 6 Mn (Fe, Cr, Co).
  • the average size of 90% of the intermetallic precipitates in the layer 3 connected directly to the support layer 2 may preferably be between 1 ⁇ and 5 ⁇ .
  • the average size of 90% of the intermetallic precipitates in the further layer 4 connected directly to the layer 3 may preferably be between 0.1 ⁇ m and 4 ⁇ m.
  • the multilayer sliding bearing element 1 can be produced by conventional methods known from the prior art.
  • the layer 2 can be roll-laminated with the support layer 2.
  • the layer 3 on the support layer. 2 is infused.
  • the further layer 4 can be roll-laminated with the composite material of support layer 2 and layer 3.
  • the further layer 4 can be poured onto the layer 3.
  • a composite material of the layer 3 and the further layer 4 is produced, for example by means of roll cladding, and that subsequently this composite material is connected to the support layer 2, for example by means of roll cladding.
  • the above-mentioned concentration gradient for silicon can be prepared by the cooling conditions of the aluminum base alloy, the casting method per se, by a spraying method, etc.
  • the formation of the above-mentioned sizes of the intermetallic compounds can be achieved by rapid cooling of the aluminum-based alloy. As such, it is known to the person skilled in the art that a finer grain structure can be achieved by faster cooling, so that explanations of the cooling conditions are unnecessary.
  • the proportion of intermetallic precipitates in the layer 3 to a maximum of 5 vol .-%, in particular to between 1 vol .-% and 2 vol .-%, and / or the proportion of intermetallic precipitates in the layer 4th to a maximum of 2% by volume, in particular between 0.5% by volume and 2% by volume.
  • an enema layer to the layer 3 (in the two-layered embodiment) or to the further layer 4 (in the three-layered variant), for example a pure tin layer or a Gleitlacktik.
  • Parameters for the feeding tendency test bearing with 80.5 mm outside diameter; Speed 3000 rpm, oil SAE 10W Shell Rimula, oil inlet at 120 ° C; Counter body steel shaft, increasing load is superimposed with a dynamic load of 50 Hz.
  • the aluminum base alloys listed in Table 1 were used in the two-layered embodiment. The figures are to be understood in each case in% by weight. The rest to 100 wt .-% each forms aluminum. The test samples were prepared by roll-laminating the layer 3 onto the support layer 2.
  • multi-layer sliding bearing elements 1 produced therewith provided comparable results in terms of wear and tendency to seizure, as did multilayer sliding bearing elements according to the prior art. With regard to the alternating bending strength but better results were achieved. Test samples of the three-layer variant of the multilayer plain bearing were also produced. Again, a steel support layer 2 was used.
  • test samples were prepared by first a bimetallic strip of the layer 3 and the layer 4 was generated. This bimetallic strip was then roll-laminated to a steel backing layer and the composite was heat treated at 350 ° C.
  • reference sample 12 Steel - Al - AlSn20Si
  • Reference numeral 6 Embodiment 4, along the rolling direction
  • Reference numeral 7 Comparison pattern 11, transverse to the rolling direction
  • Reference numeral 9 Comparison pattern 12, transverse to the rolling direction
  • Reference numeral 10 Comparison pattern 12, along the rolling direction
  • Reference numeral 11 Comparison pattern 10, along the rolling direction

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

La présente invention concerne un élément de palier lisse multicouche (1) muni d'une couche protectrice (2) et d'une couche (3) agencée sur celle-ci, à base d'un alliage d'aluminium ayant l'aluminium comme composant principal, l'alliage d'aluminium contenant entre 0 % en poids et 7 % en poids d'étain, entre 1,1 % en poids et 1,9 % en poids de cuivre, entre 0,4 % en poids et 1 % en poids de manganèse, entre 0,05 % en poids et 0,18 % en poids de cobalt, entre 0,05 % et 0,18 % en poids de chrome, entre 0,03 % en poids et 0,1 % en poids de titane, entre 0,05 % en poids et 0,18 en poids de zirconium et entre 0 % en poids et 0,4 % en poids de silicium et l'aluminium ainsi que des impuretés provenant de la production des éléments formant le complément jusqu'à 100 %, à condition que l'alliage d'aluminium contienne dans tous les cas de l'étain ou du silicium.
EP18721667.6A 2017-02-06 2018-02-05 Élément de palier lisse multicouche Pending EP3577244A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50091/2017A AT518875B1 (de) 2017-02-06 2017-02-06 Mehrschichtgleitlagerelement
PCT/AT2018/060031 WO2018140997A1 (fr) 2017-02-06 2018-02-05 Élément de palier lisse multicouche

Publications (1)

Publication Number Publication Date
EP3577244A1 true EP3577244A1 (fr) 2019-12-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP18721667.6A Pending EP3577244A1 (fr) 2017-02-06 2018-02-05 Élément de palier lisse multicouche

Country Status (5)

Country Link
US (1) US11137027B2 (fr)
EP (1) EP3577244A1 (fr)
CN (1) CN110199042B (fr)
AT (1) AT518875B1 (fr)
WO (1) WO2018140997A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT16900U1 (de) * 2019-11-19 2020-11-15 Miba Gleitlager Austria Gmbh Mehrschichtgleitlagerelement
DE202020103086U1 (de) 2020-05-28 2020-06-16 Ks Gleitlager Gmbh Metallischer Gleitlagerverbundwerkstoff
CN112522548B (zh) * 2020-11-06 2022-07-12 北京工业大学 一种耐磨含Mg铝锡轴瓦合金

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CN110199042A (zh) 2019-09-03
BR112019014559A2 (pt) 2020-02-18
US11137027B2 (en) 2021-10-05
WO2018140997A1 (fr) 2018-08-09
US20190368545A1 (en) 2019-12-05
CN110199042B (zh) 2021-10-29
AT518875B1 (de) 2018-02-15

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