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CN1035871A - A kind of thrust slide bearing and manufacture method thereof - Google Patents

A kind of thrust slide bearing and manufacture method thereof Download PDF

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Publication number
CN1035871A
CN1035871A CN 89105854 CN89105854A CN1035871A CN 1035871 A CN1035871 A CN 1035871A CN 89105854 CN89105854 CN 89105854 CN 89105854 A CN89105854 A CN 89105854A CN 1035871 A CN1035871 A CN 1035871A
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bearing
thrust slide
layer
slide bearing
composite material
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CN 89105854
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Chinese (zh)
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何生荣
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Individual
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Abstract

The invention discloses a kind of thrust slide bearing and manufacture method thereof.It is characterized in that adopting composite structure and composite material to constitute the new thrust slide bearing that is applicable to large-scale heavy duty.It has simple in structure, reliable, the advantage such as easy, easily manufactured of drawing materials, it had both had the advantage that composite structure is utilized the different materials characteristics, has the good advantage of composite material combination property again, it is a kind of antifriction, self-lubricating property is good, bearing capacity is high, heat resistance is strong, heavy duty, under the harsh lubricating condition and high thermal technology do under the condition can both highly reliable safe operation novel thrust slide bearing.

Description

A kind of thrust slide bearing and manufacture method thereof
The present invention relates to thrust slide bearing structure and manufacture method, be particularly suitable for the large-scale heavy duty thrust slide bearing and use with antifriction material of powder metallurgy, laminated composite material manufacturing.
For greatly, the oil lubrication of using always on the medium-sized heavily loaded machine, dynamic pressure or static pressure thrust slide bearing, the many traditionally employings of its bearing shell are a kind of at plate, the reguline metal component surface is fixed by groove structure, in conjunction with the bi-metal shaft bushing of making behind last layer tinbase or the lead-base bearing alloy or adopt a kind of at the plate-like metal construction bi-metal shaft bushing of the compound one deck aforementioned bearings of Cuprum alloy component surface soldering alloy for example, because the quality of used this class bearing shell bearing metal is soft, low and the bearing shell of fusing point is the stacked form of double-metal layer, the antifriction of bearing shell, wear-resisting property and heavy duty, the reliability that works long hours under the state is lower.Be everlasting machine startup, quit work when shutting down, because of the self-lubricating antifriction poor-performing more wearing and tearing take place when Oil Lubrication Condition is relatively poor; Working condition jeopardizes the machine safe operation because of the proper functioning that thermal distortion destroys bearing when long.Therefore industrially seek always for many years to use that structural stability is reliable, properties of antifriction and wear resistance is high, the manufacture method of bearing material that temperature capacity is good and bearing structure and corresponding bearing economy.Make the thin-walled radial sliding bearing at internal-combustion engine, automobile, the industrial extensive use one class antifriction material of powder metallurgy of household electric appliance, laminated composite material.Wherein with the most use is the 3-layer composite material that compound last layer polytetrafluoroethylmaterial material constitutes behind the sintered porous bronze layer of a class steel backing.As two the invention-GK85109639 and the GK86101638 of the disclosed Britain of Patent Office of the People's Republic of China Aeplc Co. (GB) Cawston, Rughy, Warwickshire CV22 7SA, England, the compound radial sliding bearing of going up the reinforced TFE material of two kinds of sintered porous bronze layers of steel backing of proposition.This class material has had the advantage of powdered metallurgical material, metallic material and engineering plastics concurrently, and its combination property is superior.Particularly on it in conjunction with last engineering plastics as bearing material, help bringing into play heat resistance height, the good advantage of antifriction quality self lubricity of engineering plastics such as teflon.Therefore, it is wide adopting the particularly large-scale thrust slide bearing prospect of this class made sliding bearing.In addition, because this class material is very ripe aspect industrial no matter technical elements, production, it is also very convenient directly to use this class made sliding bearing.But, up to now, because this class material mainly is industry services such as internal-combustion engine, the material of its production generally all is that thin-walled band shape or width are the sheet material of 200mm~300mm, and width is less.With the sliding bearing of its manufacturing mainly suitable small-medium size roll radial bearing.Because the size of material is less, also owing to the bearing material by traditional design thrust slide bearing always constitutes continuous material work by a kind of alloy or a kind of other bearing material as loading material, still there is the shortcoming that adopts single loading material, make slip working surface loading material as polytetrafluoroethylmaterial material, have heavy duty to descend problems such as not wear-resistant, that bearing capacity is lower though its antifriction performance is good, resistance to heat is good.In general, the improvement of material is than difficulty.This has just influenced and has utilized this class combination property to want high powdered metallurgical material, thrust slide bearing, the particularly possibility of large-scale heavy duty thrust slide bearing that laminated composite material is made high reliability than single bearing metal or single engineering plastics superiority.
Purpose of the present invention in order to overcome above-mentioned shortcoming by adopting new structure and using new material, solves existing oil lubrication thrust slide bearing antifriction, wear-resisting, poor heat resistance exactly; Thermal distortion is big; Reliability is low; The problem of aspects such as complex structure.Make it possible to produce simply, conveniently, economically required high-quality thrust slide bearing.
The object of the present invention is achieved like this: be generally the small size plate according to existing powdered metallurgical material or antifriction laminated composite material, band, performance requirement when characteristics that section bar is convenient to produce and general thrust slide bearing operation work, thrust slide bearing or its bearing shell type component are designed to the composite structure pattern, thereby form the thrust slide bearing that has metallic matrix member and described antifriction material of powder metallurgy element or parts to be combined into of following type: 1. be furnished with whole piece or whole on the single metal base member of bearing shell, the monoblock antifriction material of powder metallurgy mainly is the antifriction laminated composite material that is made of metallic material and engineering plastics; 2. be furnished with a series of on the single metal base member of bearing shell or polylith powder-metallurgy anti-friction laminated composite material unit, parts as the bearing material layer.The mutual amalgamation of relevant composite component or parts, be combined on the surface of metallic matrix member, by the engineering plastics layer on the composite component as the face carrying working lining that is slidingly matched.In order to utilize the advantage of different engineering plastics, the composite material of employing both can be single kind, also can be multiple class.For example can be designed as the antifriction material element of arranging compound polyimide behind the antifriction material element of going up ptfe composite behind the sintered porous bronze layer of steel backing and the sintered porous bronze layer of steel backing on the surface of metallic matrix member simultaneously and other friction reducing abrasion resistant material element that is suitable for etc.In order to guarantee enforcement purpose of the present invention, the gap of combination place is little mutually to adopt composite material on its bearing shell of thrust slide bearing of piece, combined type composite material element, and preferably gap width is zero, forms normal working oil membrane when being beneficial to bearing working.Also can adopt the mode of in the gap, inserting the elastic material (as rubber) of inhaling distortion to realize.
This thrust slide bearing is to make like this: the method that adopts bonding or soldering on the regulation surface by the base member that constitutes by compact high-strength degree metallic material of required manufacturing connect fixing on by the antifriction material of powder metallurgy sheet material or the sheet of the given size of required manufacturing, open, block elements, thereby forming thrust slide bearing or its bearing shell blank, is required thrust sliding bearing or its bearing shell finished product with above-mentioned blank through machining then.Adopt conventional adhesive method can realize purpose of the present invention easily.To note the fusing point of selected solder and the temperature of enforcement soldering when adopting method for welding, be not as the criterion not influence, to destroy, generally should select for use fusing point to carry out the pricker knot and form pricker knot face at the solder below 500 ℃ by the form of the element of soldering, member, parts, size.For soldering can be carried out smoothly, generally should adopt some machine equipments.Earlier place machine equipment to heat metallic matrix, make its surface-coated last layer molten solder of participating in combination, will become the compound pricker knot of antifriction material of powder metallurgy element that open or in blocks, block to be fixed on metal base surface then.The size of common metal matrix is bigger, and thermal capacity is also big, utilizes these characteristics reliably metallic matrix and relevant elements to be bound up.To it be made up one by one, be assembled in temporarily aborning for undersized, block elements and be not easy very much on the metallic matrix member and time-consuming, therefore generally it should be combined (it is corresponding that its size and thrust slide bearing or bearing shell are participated in the surperficial overall dimension that the makes up) material that constitutes big that open or large stretch of given size earlier.Need time spent reprocessing to be required form, for example the engineering plastics face of element is bonded on the sheetmetal one by one, forms large stretch of or big composite material combined material.After being heated and being coated with the solder that is covered with molten when the metallic matrix member, this composite material combined material given size big opened or the metal covering of big sheet material can be easily and the metallic matrix member pricker knot that fits.Also can adopt other short-cut method as on the relevant surface of metallic matrix earlier the shop apply one deck solder, repave and together go into oven heating pricker knot behind the parts of loading onto composite component or its amalgamation and make required thrust slide bearing blank, or the like.
The present invention has following advantage: simple, the convenience of drawing materials of product structure, and easy to manufacture, both had composite structure and be beneficial to the advantage of utilizing the different materials characteristics, have the good advantage of composite material combination property again.Easy realization manufacturing antifriction, self-lubricating property reach the bearing capacity height well, resistance to heat is good, reach the purpose that high thermal technology makes thrust slide bearing, the particularly large-scale thrust slide bearing of the safe operation of energy high reliability under the condition under heavy duty, harsh lubricating condition.Owing to be compounded with the antifriction of teflon or polyimide or polysulfones and so on, wear-resisting, heat-resisting 3-layer composite material after having adopted metal matrix material and steel backing or the sintered porous copper alloy layer of copper back, when the engineering plastics layer with the described type on the above-mentioned material was bearing material carrying work, this class thrust slide bearing promptly had the ability to work that high heat (than karmarsch alloy) condition is difficult for scaling loss.In addition, because the engineering plastics of the employing of addressing generally have the very little thermal conductivity of metallic material 1/10th that only be, the heating of the thrust slide bearing of making its slip working surface when work is very little by the generate heat distortion of generation of the isolated therefore machinery of engineering plastics basically.Moreover, when adopting combination, when the composite component of piece is made assembled piece type thrust slide bearing or bearing shell, when thrust bearing shoe about the piece element on surface each other design have in the gap of given size and the gap and be filled with certain intensity and be easy to absorb the flexible of distortion or low-intensity material structure and unlikely destruction, when influencing normal working oil membrane, owing to there is this class gap, structure stops easily and weakens and produces hot physical deformation effect, makes that thrust slide bearing or thrust bearing shoe are difficult for moderate finite deformation taking place and influencing the proper functioning that normal working oil membrane jeopardizes thrust slide bearing when the hot operation because of it is made of different materials more.Therefore, adopt the thrust slide bearing of manufacturing of the present invention to have high reliability.For making thrust slide bearing of the present invention, the material that it adopted (comprising Bond and solder) can both obtain in existing ripe industrial technology and material market, produce market, and this makes and needn't exert to organize manufacturing required product.Simultaneously, owing to adopt bonding autofrettage and pricker knot, the soldering autofrettage being convenient to very much implement to make described thrust slide bearing, it is very simple implementing process of the present invention.In addition, utilize the advantage of the good combination property of composite structure and composite material, the structure stability of thrust slide bearing, reliability all can be worked into very high degree.For example, the bearing shell of thrust slide bearing is designed to the plate of being made by ferrous materials, the pattern that block single metal base member combines with aforementioned antifriction laminated composite material, at this moment, can adopt the antifriction material by the sintered porous copper alloy layer composite engineering plastics of steel backing, it is very reliable utilizing the good characteristics of steel base member and antifriction element steel backing steel adhesive property to adopt its adhesive structure of thrust slide bearing of mull technique manufacturing; Friction reducing abrasion resistant material unit, the parts of composite engineering plastics combine after also can adopting the bimetal base member (can reduce the consumption of copper with this member) that constitutes behind copper or copper alloy matrix member or the steel base member surfacing complex copper alloy material as required and copper being carried on the back sintered porous copper alloy layer manufactures and designs thrust slide bearing, bearing shell.The copper back of the body, copper material part that the characteristics of utilizing copper or Cu alloy material to be easy to soldering make copper matrix component and antifriction component pricker knot mutually made the required product of reliable in structure.Because the present invention adopts heatproof, anti-friction bearing material that heat-shielding performance is good, simple in structure, reliable, cooling device and startup that existing large and medium-sized heavily loaded thrust slide bearing is complicated traditionally all can be cancelled with high pressure oil jack-up antifriction apparatus, and this has simplified the complexity of product greatly.Utilize structural type of the present invention and method also can make and the thrust slide bearing that weakens the thermal distortion effect arranged equally by tinbase or lead-base bearing alloy plate of material, block elements and metallic matrix amalgamation, combination.
Structural type of the present invention and manufacture method are illustrated with reference to accompanying drawing:
Fig. 1 is the bearing shell of prior art thrust slide bearing commonly used, its conventional construction is for to be processed with trench structure on the regulation surface of the plate of an iron and steel metallic material, block matrix, can secure bond after utilizing this groove structure to cast in tinbase or lead-base bearing alloy on the steel base on two kinds of materials be thrust bearing shoe.Also there is the metallic matrix of thrust bearing shoe to adopt copper or Cu alloy material manufacturing.Utilizing the mutual good soldering of copper and tin base or lead based alloy to make both reliable connection is required goods.(1) expression tinbase or lead based alloy material layer.(2) expression ferrous materials or copper-based material plate matrix.
When Fig. 2 was tradition use tinbase or lead-base bearing alloy material, the structural representation of common metal parent plate block member had groove structure on it.
Fig. 3 is that prior art extensively is used in internal-combustion engine, spaceborne steel backing or copper and carries on the back and be combined with the 3-layer composite material structural representation that teflon or other engineering plastics comprise the modified engineered plastic class behind the sintered porous bronze layer, engineering plastics (1) firmly are combined in the Oilite bronze layer (2) by porous structure, and the bronze layer sintering is on the steel backing or the copper-based material back of the body (3).Three's reliable connection is integral, and the steel backing or the copper back of the body are worked as the high strength matrix.
Fig. 4 is a kind of two layers of composite bearing material structural representation in the prior art, and JP58-77916 is illustrated as Japan Patent, and (1) is bonded on the metal backing (2) by Bond for the fluorine resin material layer.Metal backing (2) can be the bimetallic material as steel backing sintered copper sill formation of steel or copper-based material or metallic composite.The metal backing material often is plate, band, piece type.
Fig. 5 is a kind of pattern of exemplary push sliding bearing of the present invention, bearing shell.(1) is combined with the anti-friction wear-resistant 3-layer composite material parts of engineering plastics behind the sintered porous copper alloy layer of a kind of steel backing, (2) steel substrate member or copper-based material member, adhesive layer or brazing filler metal that (3) are combined into one (1) and (2).
Fig. 6 be the mutual amalgamation of antifriction 3-layer composite material (1) element one by one on metallic matrix (2), (1) and (2) bonds mutually with Bond or solder (3) or the pricker signal that is combined as a whole.
Fig. 7 be on the regulation surface of metallic matrix (2) with Bond or solder brazing in conjunction with last anti-friction wear-resistant component layer (1).(1) constitutes by 3-layer composite material (5) plate of inlaying element (4) and having an engineering plastics layer respectively.(4) be embedded in the hole of (5).(4) can be that the 3-layer composite material of engineering plastics layer is arranged also can be the element that other material of being suitable for is made.
Fig. 8 is a kind of another thrust slide bearing by the present invention's design, bearing material on its bearing shell metallic matrix presents assembly, edge shape form, and the gap around in fact each assembly, edge, the block bearing material, groove or the groove through clogging manufacture through machining.That is be first behind whole required on the regulation surface recombination of metallic matrix member bearing material, reprocess out structures such as gap or groove.These gaps or groove structure, or the structure of clogging structure generations such as above-mentioned gap with the material that contains antifriction material is the same with the thrust-bearing made from piece, combination or the form of inlaying, and it all distributes to the surface direction in conjunction with bearing material of metallic matrix member along the slip supporting plane of thrust slide bearing.Groove among the figure (6) is a straight trough, and (7) are annular slot, and (1) is bearing material, and (2) are the metallic matrix member.
Fig. 9 is a kind of a kind of sliding bearing by the present invention's design.Solder arranges that in advance (casting) having the surface of position of stipulating on the base steel metal construction of groove structure, and then contain laminated composite material element, parts the engineering plastics layer, metal-containing backing layer (being generally the metal backing layer of copper-based material) in the solder surface arrangement, make relevant elements or parts and base steel metal construction pricker knot together through heating, reprocess and be finished product.(1) relevant layered laminate composite component or the parts that contain the engineering plastics layer of expression, (2) expression steel base metal construction, (3) solder part.Thrust slide bearing that the very suitable prior art of this structural type is used and shoe Transformation are required pattern of the present invention.

Claims (2)

1, to contain the layered laminate composite material of the engineering plastics layer that teflon or other be suitable for be the thrust slide bearing of bearing material layer to a kind of main usefulness, it is characterized in that:
A. the structural type of sliding bearing or its bearing shell be by on high-intensity ferrous materials member or copper-based material member or ferrous materials member and the member regulation surface that copper-based material is compounded to form mutually in conjunction with, be furnished with the sintered porous copper alloy layer of steel backing, compound teflon or polyimide or polysulfones or other engineering plastics that are suitable for gone up again, or in conjunction with being furnished with other laminated composite material element that is suitable for, the structural type of parts;
B. about having tangible binding material of one deck or pricker knot solder between the high duty metal base member and junction planes above-mentioned relevant anti-friction wear-resistant bearing material element or parts;
C. the friction reducing abrasion resistant material layer of sliding bearing or its bearing shell or bearing material layer are combination or piece structure, or gapped or groove or have the material of the regulation of adopting to clog the structural type of groove.
2, to contain the layered laminate composite material of the engineering plastics layer that teflon or other be suitable for be the manufacture method of the thrust slide bearing of bearing material layer to a kind of main usefulness, it is characterized in that sliding bearing or its bearing shell are through element or parts or other laminated composite material element that is suitable for of relevant metallic matrix member that will process in advance and the relevant laminated composite material structure that contains the engineering plastics layer or parts bond mutually or soldering is combined as a whole back formation blank, and then be processed as required thrust slide bearing or bearing shell finished product.
CN 89105854 1989-01-26 1989-01-26 A kind of thrust slide bearing and manufacture method thereof Pending CN1035871A (en)

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100394047C (en) * 2002-10-14 2008-06-11 圣戈班性能塑料帕姆普斯有限公司 Plain bearing material
CN101839282A (en) * 2009-03-19 2010-09-22 大同金属工业株式会社 The bearing means of compressor in the refrigerator
CN101225856B (en) * 2008-01-22 2010-12-08 重庆跃进机械厂有限公司 Technique for manufacturing high-carbon steel thrust sliding bearing of high-power low speed diesel engine
CN101201081B (en) * 2006-08-02 2011-11-09 米巴·格来特来格有限公司 Anti-friction layer for a bearing element
CN102478067A (en) * 2010-11-25 2012-05-30 贵州红林机械有限公司 Bearing made of carbon/carbon composite material and aluminum and copper alloy and manufacturing method thereof
CN102947088A (en) * 2010-06-23 2013-02-27 Asml控股股份有限公司 Pneumatic bearing with bonded polymer film wear surface and method of manufacture
US8408800B2 (en) 2009-11-10 2013-04-02 Saint-Gobain Performance Plastics Corporation Closed end bearing cup
US8491194B2 (en) 2007-10-01 2013-07-23 Saint-Gobain Performance Plastics Corporation Bearings
CN104061242A (en) * 2014-05-18 2014-09-24 金迪荣 Multi-layered composite wear resistant balancing bearing and manufacturing technique thereof
CN104074872A (en) * 2014-07-02 2014-10-01 南通志邦新材料科技有限公司 Oil locking type porous metal material bearing bush
CN104658403A (en) * 2015-03-09 2015-05-27 东北大学 Thrust sliding bearing lubricating property teaching demonstration device
CN105020267A (en) * 2015-08-10 2015-11-04 大连三环复合材料技术开发有限公司 Water lubrication composite thrust bearing of nuclear main pump
CN105722674A (en) * 2013-09-30 2016-06-29 圣戈班性能塑料帕姆普斯有限公司 Laminates with fluoropolymer cloth
CN106763147A (en) * 2017-01-09 2017-05-31 重庆大学 NEW ADAPTIVE water lubricating thrust bearing
CN108425849A (en) * 2018-03-27 2018-08-21 珠海格力节能环保制冷技术研究中心有限公司 Rotor compressor and heat transmission equipment with it
CN108691896A (en) * 2018-07-26 2018-10-23 广州市研理复合材料科技有限公司 A kind of honeycomb sliding surface and sliding bearing
EP3333437A4 (en) * 2015-08-10 2019-01-09 Dalian Sanhuan Composite Material Technology Development Co., Ltd. COMPOSITE STOPPER BEARING WITH WATER OF A NUCLEAR MAIN PUMP
CN109268392A (en) * 2018-11-13 2019-01-25 浙江申发轴瓦股份有限公司 A kind of gas turbine copper alloy thrust bearing
CN111156253A (en) * 2020-01-07 2020-05-15 松下·万宝(广州)压缩机有限公司 A shaft sleeve, a method for making a shaft sleeve, a bearing and a compressor

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100394047C (en) * 2002-10-14 2008-06-11 圣戈班性能塑料帕姆普斯有限公司 Plain bearing material
CN101201081B (en) * 2006-08-02 2011-11-09 米巴·格来特来格有限公司 Anti-friction layer for a bearing element
US8491194B2 (en) 2007-10-01 2013-07-23 Saint-Gobain Performance Plastics Corporation Bearings
CN101225856B (en) * 2008-01-22 2010-12-08 重庆跃进机械厂有限公司 Technique for manufacturing high-carbon steel thrust sliding bearing of high-power low speed diesel engine
CN101839282A (en) * 2009-03-19 2010-09-22 大同金属工业株式会社 The bearing means of compressor in the refrigerator
CN101839282B (en) * 2009-03-19 2013-01-23 大同金属工业株式会社 Bearing device of compressor for refrigerator
US8408800B2 (en) 2009-11-10 2013-04-02 Saint-Gobain Performance Plastics Corporation Closed end bearing cup
CN102947088A (en) * 2010-06-23 2013-02-27 Asml控股股份有限公司 Pneumatic bearing with bonded polymer film wear surface and method of manufacture
US10267360B2 (en) 2010-06-23 2019-04-23 Asml Holding N.V. Pneumatic bearing with bonded polymer film wear surface and production method thereof
CN102947088B (en) * 2010-06-23 2017-06-13 Asml控股股份有限公司 Pneumatic bearing with bonded polymer film wear surface and method of manufacture
CN102478067A (en) * 2010-11-25 2012-05-30 贵州红林机械有限公司 Bearing made of carbon/carbon composite material and aluminum and copper alloy and manufacturing method thereof
CN105722674A (en) * 2013-09-30 2016-06-29 圣戈班性能塑料帕姆普斯有限公司 Laminates with fluoropolymer cloth
US10307991B2 (en) 2013-09-30 2019-06-04 Saint-Gobain Performance Plastics Pampus Gmbh Laminates with fluoropolymer cloth
CN104061242A (en) * 2014-05-18 2014-09-24 金迪荣 Multi-layered composite wear resistant balancing bearing and manufacturing technique thereof
CN104074872A (en) * 2014-07-02 2014-10-01 南通志邦新材料科技有限公司 Oil locking type porous metal material bearing bush
CN104658403A (en) * 2015-03-09 2015-05-27 东北大学 Thrust sliding bearing lubricating property teaching demonstration device
CN105020267A (en) * 2015-08-10 2015-11-04 大连三环复合材料技术开发有限公司 Water lubrication composite thrust bearing of nuclear main pump
EP3333437A4 (en) * 2015-08-10 2019-01-09 Dalian Sanhuan Composite Material Technology Development Co., Ltd. COMPOSITE STOPPER BEARING WITH WATER OF A NUCLEAR MAIN PUMP
US10208794B2 (en) 2015-08-10 2019-02-19 Dalian Sanhuan Composite Material Technology Development Co., Ltd. Water lubricated composite thrust bearing of nuclear main pump
CN105020267B (en) * 2015-08-10 2017-09-19 大连三环复合材料技术开发股份有限公司 Core main pump water lubrication composite material thrust bearing
CN106763147A (en) * 2017-01-09 2017-05-31 重庆大学 NEW ADAPTIVE water lubricating thrust bearing
CN108425849A (en) * 2018-03-27 2018-08-21 珠海格力节能环保制冷技术研究中心有限公司 Rotor compressor and heat transmission equipment with it
CN108691896A (en) * 2018-07-26 2018-10-23 广州市研理复合材料科技有限公司 A kind of honeycomb sliding surface and sliding bearing
CN109268392A (en) * 2018-11-13 2019-01-25 浙江申发轴瓦股份有限公司 A kind of gas turbine copper alloy thrust bearing
CN111156253A (en) * 2020-01-07 2020-05-15 松下·万宝(广州)压缩机有限公司 A shaft sleeve, a method for making a shaft sleeve, a bearing and a compressor

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