GB2497520A - Method of electroplating a bearing surface - Google Patents
Method of electroplating a bearing surface Download PDFInfo
- Publication number
- GB2497520A GB2497520A GB1121175.2A GB201121175A GB2497520A GB 2497520 A GB2497520 A GB 2497520A GB 201121175 A GB201121175 A GB 201121175A GB 2497520 A GB2497520 A GB 2497520A
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- United Kingdom
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- text
- bias portion
- cathodic
- bias
- electrolyte
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Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000009713 electroplating Methods 0.000 title description 7
- 239000003792 electrolyte Substances 0.000 claims abstract description 23
- 239000011159 matrix material Substances 0.000 claims abstract description 23
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000725 suspension Substances 0.000 claims abstract description 9
- 239000002131 composite material Substances 0.000 claims abstract description 8
- 238000000151 deposition Methods 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims abstract description 6
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- 230000001965 increasing effect Effects 0.000 claims description 4
- PGGZKNHTKRUCJS-UHFFFAOYSA-N methanesulfonic acid;tin Chemical compound [Sn].CS(O)(=O)=O PGGZKNHTKRUCJS-UHFFFAOYSA-N 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 229910052580 B4C Inorganic materials 0.000 description 6
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 6
- 230000008021 deposition Effects 0.000 description 5
- 238000010348 incorporation Methods 0.000 description 5
- 229910021645 metal ion Inorganic materials 0.000 description 4
- 229910001432 tin ion Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229940098779 methanesulfonic acid Drugs 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 239000001211 (E)-4-phenylbut-3-en-2-one Substances 0.000 description 1
- HCGFUIQPSOCUHI-UHFFFAOYSA-N 2-propan-2-yloxyethanol Chemical compound CC(C)OCCO HCGFUIQPSOCUHI-UHFFFAOYSA-N 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 240000007472 Leucaena leucocephala Species 0.000 description 1
- 235000010643 Leucaena leucocephala Nutrition 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 229910019802 NbC Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229930008407 benzylideneacetone Natural products 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical group 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- UNASZPQZIFZUSI-UHFFFAOYSA-N methylidyneniobium Chemical compound [Nb]#C UNASZPQZIFZUSI-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- BWHOZHOGCMHOBV-BQYQJAHWSA-N trans-benzylideneacetone Chemical compound CC(=O)\C=C\C1=CC=CC=C1 BWHOZHOGCMHOBV-BQYQJAHWSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/10—Bearings
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D15/00—Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/12—Process control or regulation
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/18—Electroplating using modulated, pulsed or reversing current
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Automation & Control Theory (AREA)
- Sliding-Contact Bearings (AREA)
- Electroplating Methods And Accessories (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
A method of manufacturing a sliding bearing comprising providing a substrate 1 as a cathode in an electrolyte within which a hard particulate is suspended, and depositing a composite layer 5 of hard particulate embedded in a metallic matrix by applying a repeating cycle of bias pulses to the substrate. The cycle comprises a high cathodic bias portion and a further bias portion selected from the group consisting of a low cathodic bias portion, a zero cathodic bias portion and an anodic bias portion, and a sliding bearing manufactured by such a method. The electrolyte may be agitated to maintain the particulate in suspension. The metallic matyrix may be tin (Sn). The hard particulate may be TiCN, SiC, NbC, Si3N4, Al2O3, TiN or B4C.
Description
METHOD OF ELECTROPLATING
The present invention relates to a method of electroplating a sliding bearing with a composite layer of hard particulate incorporated in a metallic matrix, and more particularly, but not exclusively, to bearing shells and thrust washers.
BACKGROUND
Bearing shells for journaled engine bearings typically comprises a strong steel backing layer, a lining layer and an overlay layel that provides the running surface for the journaled shaft, e.g. a hollow generally semi-cylindrical steel backing layer, a copper-based alloy lining layer, and a tin, tin-based alloy or composite overlay layer on the inner surface.
It is desirable to provide increased wear resistance and to improve the fatigue strength of layers in bearing linings, particularly overlay layers. A particular challenge to bearing overlay layer performance is provided by the configuration of vehicle engines to save fuel by using a stop-start operation, in which the engine is stopped each time the vehicle stops, in contrast to conventional engine operation, in which the engine is kept running throughout a vehicle's journey. Engines configured for stop-start operation may restart their engines more than one hundred times more frequently than conventionally configured engines running continuously throughout each vehicle journey. The particular problem that an engine configured for stop-start operation presents arises because engine bearings are conventionally hydrodynamically lubricated, with little or no lubrication initially being provided to the bearings when the engine starts, leading to particularly significant wear during the start-up phase.
It has been proposed to increase the wear resistance of engine bearings by the incorporation of hard inorganic particles, which are substantially insoluble in the electroplating electrolyte, into bearing overlay layers. Exemplary materials are the incorporation of aluminium oxide, silicon nitride, silicon carbide or boron carbide hard particulate into a tin-based alloy matrix. However, the production of such composite layers, with a high concentration of hard particulate, is difficult by conventional electroplating techniques, particularly in a tin-based alloy matrix (e.g. at least 50 %wt tin), and most particularly in the case of a pure tin matrix.
SUMMARY OF THE DISCLOSURE
According to a first aspect, there is provided a method of manufacturing a sliding bearing comprising providing a substrate as a cathode in an electrolyte within which a hard particulate is suspended, and depositing a composite layer of hard particulate embedded in a metallic matrix by applying a repeating cycle of bias pulses to the substrate wherein each cycle comprises a high cathodic bias portion and a further bias portion selected from the group consisting of a low cathodic bias portion, a zero cathodic bias portion and an anodic bias portion.
According to a second aspect, there is provided a sliding bearing manufactured according to the method of the first aspect.
According to a third aspect, there is provided an engine comprising a sliding bearing manufactured according to the first aspect.
The method may further comprise agitating the electrolyte to maintain the hard particulate in suspension.
The further bias portion may be a low cathodic bias portion.
The high cathodic bias portion may have a bias of at least 125 % of the low cathodic bias portion.
The further bias portion may be a zero cathodic bias portion.
The further bias portion may be an anodic bias portion.
The absolute value of the anodic bias portion may be between 0.25 and 3.0 times the absolute value of the high cathodic bias portion (i.e. between 0.25 and 3.0 times the magnitude, but of opposite polarity).
The repeating cycle may have a sawtooth profile in which each cycle comprises a monotonically increasing cathodic bias.
The pulse cycle may have a length of 5 to 200 ms, and preferably of 10 to 100 ms.
The high cathodic bias portion may consist of 10 to 95% of the pulse cycle.
The high cathodic bias portion may have a peak current density of 0.5 to 10 Ndm2.
The mean average cathodic current density of the cycle is lower than 5 AIdm2.
The hard particulate may be selected from the group consisting of TiCN, SiC, NbC, Si3N4, A1203, TiN, and B4C.
The suspension may comprise 20 to 200 g hard particulate per litre of electrolyte, and preferably 40 to 100 g per litre.
The metallic matrix may be a pure metal, apart from incidental impurities.
The metallic matrix may be pure Sn, apart from incidental impurities.
The metallic matrix may be a metal alloy, apart from incidental impurities.
The metallic matrix may be a Sn-based alloy, apart from incidental impurities.
The electrolyte may be a tin methanesulfonic acid electrolyte.
The may electrolyte comprise 15 to 80 gIl Sn.
The electrolyte may comprise brightener.
The sliding bearing may be a bearing shell or a thrust washer.
BRIEF DESCRIPTION OF THE DRAWINGS
Embodiments of the invention are further described hereinafter with reference to the accompanying drawings, in which: * Figure 1 shows a schematic illustration of a bearing shell; * Figure 2 shows a first bias pulse profile; * Figure 3 shows an SEM micrograph of a section of a sliding bearing having an overlay with a B4C hard particulate incorporated into a Sn metallic matrix; and * Figure 4 shows a second bias pulse profile; and * Figure 5 shows a third bias pulse profile.
DETAILED DESCRIPTION
Figure 1 illustrates a hollow generally semi-cylindrical bearing shell 1 having a steel backing layer 2, a copper-based alloy lining layer 3, a nickel or cobalt diffusion barrier 4, and a composite overlay layer 5 of hard particulate incorporated into a Sn matrix.
The bearing shell onto which the composite layer is deposited is provided as a cathode in a bath containing a suspension of hard particulate in an electroplating electrolyte, with an anode formed ot a material corresponding to the metallic matrix, e.g. a high purity tin anode.
The electrolyte is a lead-tree, tin methanesulfonic acid (MSA) electrolyte (tin ions in methanesulfonic acid), which may comprise performance enhancing additives, such as brightener and anti-foaming agent. For example the electrolyte may be the Bright Tin GBF acidic electrolyte system from Schlötter Galvanotechnik, which uses a recipe of Schlötter's ingredients consisting of 13.0 litres Tin Concentrate FS 20 (which contains 310 gil tin(ll)), 6.0 litres GBF 31 Starter (20 to 25 %wt 2-naptholpolyglycolether, ito 2.5 %wt 1,2-dihydroxybenzene, and ito 2.5 %wt methacrylic acid), 0.4 litres GBR 32 Brightener (35 to %wt 2-isopropoxyethanol, and 5 to 10 %wt 4-phenylbut-3-en-2-one), 11.0 litres GBF 33 Make Up Concentrate (which is 45 %wt MSA), and the balance to 100 litres of deionised water. This forms a solution of 30 to 60 gIl tin, although concentrations of 15 to 80 gIl may be used. The suspension is maintained at a temperature of 20 to 30 °C. The chemical composition and pH is maintained during deposition by replenishment of the consumed chemicals.
Hard particulate, such as boron carbide, alumina, silicon nitride, boron nitride, silicon carbide, niobium carbide, titanium nitride, or titanium carbo-nitride, with a particle size of less than 7 pm, is suspended in the solution with a concentration of approximately 60 gil (operation has been demonstrated with 20 to 200 gil hard particulate, and preferably 40 to gil). Ultrasonic andlor mechanical stirring agitation is used to maintain the hard particulate in suspension.
A cathodic bias (i.e. a negative bias is applied to the cathode relative to the anode) creates a cathodic current (i.e. a negative current, with respect to the anode) that drives the positively charged tin ions towards the sliding bearing cathode, and deposits the tin ions onto the cathode surface. To provide an enhanced incorporation of the B4C hard particulate the cathode bias is cyclically pulsed at with a pulse cycle period of 10 to 20 ms (although operation has been demonstrated with a pulse cycle period of 10 to 40 ms). The peak cathodic current density is between 0.5 and 5.0 A!dm2, and the mean average current density across the pulse cycle is up to 3.6 AIdm2.
As illustrated in Figure 2, in one embodiment a bias pulse cycle is used having a high cathodic bias VH pulse portion ti and a zero cathodic bias V0 portion t2. The high cathodic bias portion is applied for up to 95 % of the pulse cycle (preferably between 10 and 95 %), and produces a high cathodic current density.
By using pulsed electroplating, it is possible to uniformly incorporate up to 20 %wt B4C hard particulate into a Sn metallic matrix of a sliding bearing overlay layer. Figure 3 illustrates a sectional view of such a layer, in which the hard particulate 6 appear as dark specks in the metallic matrix of the overlay layer 5.
The rate of metallic matrix deposition under a constant cathodic current is limited by the ionic mobility of the metal ions (e.g. tin ions), due to the presence of a depletion region in the electrolyte, against the cathode surface. Although hard particulate from the suspension adheres onto the surface, slow deposition of the metal ions that occurs under constant cathodic current is inefficient at incorporating the surface particles into the deposited layer, with the particles instead remaining on the surface as the metallic matrix layer grows. In contrast, during the zero cathodic bias portions (and similarly during lower cathodic bias portions or during anodic bias portions), the concentration of metal ions close to the cathode surface is able to increase, leading to a rapid burst of deposition occurring during the high cathodic bias portions, which increases the efficiency of incorporation of the hard particulate into the deposited layer.
Alternatively, as illustrated in Figure 4, the pulse cycle may have an alternating high cathodic bias VH portions t1' and low cathodic bias VL portions 12'. The high cathodic bias VH is at least 1.25 times greater than the low cathodic bias V[. Additionally there may also be a zero cathodic bias portion (also known as off-time), for example following the high cathodic bias portion.
In a yet further embodiment, a double polarity pulse cycle may be used, in which an anodic bias pulse portion (i.e. a reverse bias, relative to the cathodic bias) may be provided. For example, as illustrated in Figure 5, the pulse cycle may have high cathodic bias VH pulse portion t1", an anodic bias VR pulse portion t2", a zero cathodic bias V0 portion t3", and a low cathodic bias VL portion u". The anodic bias portion has a bias that is between -0.25 and - 3.0 times the bias of the high cathodic bias portion (i.e. its magnitude is between 0.25 and 3.0 times the magnitude, but of opposite polarity).
Such anodic bias pulses may de-plate metal ions from the deposited layer, providing a high concentration of ions close to the cathode surface, further increasing the subsequent rate of deposition during the high cathodic bias pulse portion, further enhancing the incorporation of hard particulate into the deposited layer of metallic matrix.
The sliding bearing may be a bearing lining or a thrust washer, which is inserted into the bearing assembly of an engine.
Throughout the description and claims of this specification, the words "comprise" and "contain" and variations of them mean "including but not limited to", and they are not intended to (and do not) exclude other moieties, additives, components, integers or steps.
Throughout the description and claims of this specification, the singular encompasses the plural unless the context otherwise requires. In particular, where the indefinite article is used, the specification is to be understood as contemplating plurality as well as singularity, unless the context requires otherwise.
Features, integers, characteristics, compounds, chemical moieties or groups described in conjunction with a particular aspect, embodiment or example of the invention are to be understood to be applicable to any other aspect, embodiment or example described herein unless incompatible therewith. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least sortie of such features and/or steps are mutually exclusive. The invention is not restricted to the details of any foregoing embodiments. The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed.
The reader's attention is directed to all papers and documents which are filed concurrently with or previous to this specification in connection with this application and which are open to public inspection with this specification, and the contents of all such papers and documents are incorporated herein by reference.
Claims (1)
- <claim-text>CLAIMS1. A method of manufacturing a sliding bearing comprising providing a substrate as a cathode in an electrolyte within which a hard particulate is suspended, and depositing a composite layer of hard particulate embedded in a metallic matrix by applying a repeating cycle of bias pulses to the substrate wherein each cycle comprises a high cathodic bias portion and a further bias portion selected from the group consisting of a low cathodic bias portion, a zero cathodic bias portion and an anodic bias portion.</claim-text> <claim-text>2. A method according to claim 1, further comprising agitating the electrolyte to maintain the hard particulate in suspension.</claim-text> <claim-text>3. A method according to claims 1 or 2, wherein the further bias portion is a low cathodic bias portion.</claim-text> <claim-text>4. A method according to claim 3, wherein the high cathodic bias portion has a bias of at least 125 % of the low cathodic bias portion.</claim-text> <claim-text>5. A method according to any preceding claim, wherein the further bias portion is a zero cathodic bias portion.</claim-text> <claim-text>6. A method according to any preceding claim, wherein the further bias portion is an anodic bias portion.</claim-text> <claim-text>7. A method according to claim 6, wherein the absolute value of the anodic bias portion is between 0.25 and 3.0 times the absolute value of the high cathodic bias portion.</claim-text> <claim-text>8. A method according to any preceding claim, wherein the repeating cycle has a sawtooth profile in which each cycle comprises a monotonically increasing cathodic bias.</claim-text> <claim-text>9. A method according to any preceding claim, wherein the pulse cycle has a length of 5 to 200 ms.</claim-text> <claim-text>10. A method according to any preceding claim wherein the high cathodic bias portion consists of 10 to 95% of the pulse cycle.</claim-text> <claim-text>11. A method according to any preceding claim, wherein the high cathodic bias portion has a peak current density of 0.5 to 10 AIdm2.</claim-text> <claim-text>12. A method according to any preceding claim, wherein the mean average cathodic current density of the cycle is lower than 5 AJdm2.</claim-text> <claim-text>13. A method according to any preceding claim, wherein the hard particulate is selected from the group consisting of TiCN, SiC, NbC, Si3N4, A1203, TiN, and B4C.</claim-text> <claim-text>14. A method according to any preceding claim, wherein the suspension comprises 20 to g hard particulate per litre of electrolyte.</claim-text> <claim-text>15. A method according to any preceding claim, wherein the metallic matrix is a pure metal, apart from incidental impurities.</claim-text> <claim-text>16. A method according to claim 17, wherein the metallic matrix is pure Sn, apart from incidental impurities.</claim-text> <claim-text>17. A method according to any one of claims 1 to 14, wherein the metallic matrix is a metal alloy! apart from incidental impurities.</claim-text> <claim-text>18. A method according to claim 17, wherein the metallic matrix is a Sn-based alloy, apart from incidental impurities.</claim-text> <claim-text>19. A method according to any preceding claim, wherein the electrolyte is a tin methanesulfonic acid electrolyte.</claim-text> <claim-text>20. A method according to any preceding claim, wherein the electrolyte comprises 15 to gIl Sn.</claim-text> <claim-text>21. A method according to any preceding claim, wherein the electrolyte comprises brightener.</claim-text> <claim-text>22. A method according to any preceding claim, wherein the sliding bearing is a bearing shell or a thrust washer.</claim-text> <claim-text>23. A sliding bearing manufactured according to the method of any preceding claim.</claim-text> <claim-text>24. An engine comprising a sliding bearing manufactured according to any preceding claim.</claim-text> <claim-text>25. A method of manufacturing a sliding bearing substantially as hereinbefore described with reference to the accompanying description and any one of the Figures.</claim-text> <claim-text>26. A sliding bearing manutactured by the method substantially as hereinbefore described with reference to the accompanying description and any one of the Figures.</claim-text> <claim-text>27. An engine comprising a sliding bearing manufactured by the method substantially as hereinbefore described with reference to the accompanying description.</claim-text>
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1121175.2A GB2497520A (en) | 2011-12-09 | 2011-12-09 | Method of electroplating a bearing surface |
| JP2014545353A JP2015501881A (en) | 2011-12-09 | 2012-12-06 | Sliding bearing manufacturing method |
| US14/363,990 US20140353161A1 (en) | 2011-12-09 | 2012-12-06 | Method of manufacture a sliding bearing |
| PCT/GB2012/053037 WO2013083987A1 (en) | 2011-12-09 | 2012-12-06 | Method of manufacture a sliding bearing |
| CN201280060596.3A CN104105821A (en) | 2011-12-09 | 2012-12-06 | Method of manufacturing sliding bearing |
| EP12806626.3A EP2788533A1 (en) | 2011-12-09 | 2012-12-06 | Method of manufacture a sliding bearing |
| BR112014013830A BR112014013830A2 (en) | 2011-12-09 | 2012-12-06 | Production method of a sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1121175.2A GB2497520A (en) | 2011-12-09 | 2011-12-09 | Method of electroplating a bearing surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201121175D0 GB201121175D0 (en) | 2012-01-18 |
| GB2497520A true GB2497520A (en) | 2013-06-19 |
Family
ID=45541461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1121175.2A Withdrawn GB2497520A (en) | 2011-12-09 | 2011-12-09 | Method of electroplating a bearing surface |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20140353161A1 (en) |
| EP (1) | EP2788533A1 (en) |
| JP (1) | JP2015501881A (en) |
| CN (1) | CN104105821A (en) |
| BR (1) | BR112014013830A2 (en) |
| GB (1) | GB2497520A (en) |
| WO (1) | WO2013083987A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2529384A (en) * | 2014-06-23 | 2016-02-24 | Daido Metal Co | A plain bearing with composite interplayer |
| GB2535997A (en) * | 2015-02-27 | 2016-09-07 | Daido Metal Co | Composite coating for a plain bearing of an internal combustion engine and method of deposition |
| EP3252191B1 (en) * | 2016-06-02 | 2020-05-06 | Mahle International GmbH | Sliding component and method |
| RU2744104C1 (en) * | 2020-06-23 | 2021-03-02 | Российская Федерация, от имени которой выступает ФОНД ПЕРСПЕКТИВНЫХ ИССЛЕДОВАНИЙ | Turbocharger shaft bearings |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11466728B2 (en) | 2018-03-21 | 2022-10-11 | Tenneco Inc. | Bearing and method of manufacturing permitting high temperature heat treatment |
| CN110983393A (en) * | 2019-12-27 | 2020-04-10 | 广东电网有限责任公司电力科学研究院 | Silver-niobium carbide composite coating and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004092450A1 (en) * | 2003-04-11 | 2004-10-28 | Lynntech, Inc. | Compositions and coatings including quasicrystals |
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- 2012-12-06 EP EP12806626.3A patent/EP2788533A1/en not_active Withdrawn
- 2012-12-06 JP JP2014545353A patent/JP2015501881A/en active Pending
- 2012-12-06 CN CN201280060596.3A patent/CN104105821A/en active Pending
- 2012-12-06 US US14/363,990 patent/US20140353161A1/en not_active Abandoned
- 2012-12-06 BR BR112014013830A patent/BR112014013830A2/en not_active Application Discontinuation
- 2012-12-06 WO PCT/GB2012/053037 patent/WO2013083987A1/en active Application Filing
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| WO2004092450A1 (en) * | 2003-04-11 | 2004-10-28 | Lynntech, Inc. | Compositions and coatings including quasicrystals |
| US20110300408A1 (en) * | 2008-10-17 | 2011-12-08 | Initonem Ag | Method and device for producing low-wear hard coatings |
| WO2011129720A1 (en) * | 2010-04-15 | 2011-10-20 | Zaligin Yury Removich | Thin-layer ceramic coating and friction surface based thereon |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2529384A (en) * | 2014-06-23 | 2016-02-24 | Daido Metal Co | A plain bearing with composite interplayer |
| GB2535997A (en) * | 2015-02-27 | 2016-09-07 | Daido Metal Co | Composite coating for a plain bearing of an internal combustion engine and method of deposition |
| EP3252191B1 (en) * | 2016-06-02 | 2020-05-06 | Mahle International GmbH | Sliding component and method |
| RU2744104C1 (en) * | 2020-06-23 | 2021-03-02 | Российская Федерация, от имени которой выступает ФОНД ПЕРСПЕКТИВНЫХ ИССЛЕДОВАНИЙ | Turbocharger shaft bearings |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013083987A1 (en) | 2013-06-13 |
| BR112014013830A8 (en) | 2017-06-13 |
| CN104105821A (en) | 2014-10-15 |
| EP2788533A1 (en) | 2014-10-15 |
| US20140353161A1 (en) | 2014-12-04 |
| BR112014013830A2 (en) | 2017-06-13 |
| GB201121175D0 (en) | 2012-01-18 |
| JP2015501881A (en) | 2015-01-19 |
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