CN110591568A - Adhesive for bearing plate, self-lubricating bearing plate and preparation method of self-lubricating bearing plate - Google Patents
Adhesive for bearing plate, self-lubricating bearing plate and preparation method of self-lubricating bearing plate Download PDFInfo
- Publication number
- CN110591568A CN110591568A CN201910754355.2A CN201910754355A CN110591568A CN 110591568 A CN110591568 A CN 110591568A CN 201910754355 A CN201910754355 A CN 201910754355A CN 110591568 A CN110591568 A CN 110591568A
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- China
- Prior art keywords
- parts
- wear
- bearing plate
- self
- soft belt
- Prior art date
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- 230000001070 adhesive effect Effects 0.000 title claims abstract description 60
- 239000000853 adhesive Substances 0.000 title claims abstract description 58
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- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 34
- 239000002994 raw material Substances 0.000 claims abstract description 33
- NIHNNTQXNPWCJQ-UHFFFAOYSA-N fluorene Chemical compound C1=CC=C2CC3=CC=CC=C3C2=C1 NIHNNTQXNPWCJQ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229930185605 Bisphenol Natural products 0.000 claims abstract description 10
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 10
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims abstract description 10
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- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 9
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims abstract description 7
- IMUDHTPIFIBORV-UHFFFAOYSA-N aminoethylpiperazine Chemical compound NCCN1CCNCC1 IMUDHTPIFIBORV-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000654 additive Substances 0.000 claims abstract description 5
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- QTKPMCIBUROOGY-UHFFFAOYSA-N 2,2,2-trifluoroethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(F)(F)F QTKPMCIBUROOGY-UHFFFAOYSA-N 0.000 claims description 11
- YJKHMSPWWGBKTN-UHFFFAOYSA-N 2,2,3,3,4,4,5,5,6,6,7,7-dodecafluoroheptyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)F YJKHMSPWWGBKTN-UHFFFAOYSA-N 0.000 claims description 11
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 claims description 11
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- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical group CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 6
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 6
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims description 6
- 229910000906 Bronze Inorganic materials 0.000 claims description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 6
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- 239000010974 bronze Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 6
- 239000003960 organic solvent Substances 0.000 claims description 6
- 239000004408 titanium dioxide Substances 0.000 claims description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
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- 239000012744 reinforcing agent Substances 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 4
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- 238000005299 abrasion Methods 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 4
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- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
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- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 239000004793 Polystyrene Substances 0.000 claims description 3
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- 239000010949 copper Substances 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
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- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 239000008397 galvanized steel Substances 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052706 scandium Inorganic materials 0.000 claims description 2
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
- 239000011135 tin Substances 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims 1
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- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
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- ZZTCPWRAHWXWCH-UHFFFAOYSA-N diphenylmethanediamine Chemical compound C=1C=CC=CC=1C(N)(N)C1=CC=CC=C1 ZZTCPWRAHWXWCH-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
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- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses an adhesive for a bearing plate, which comprises a component A and a component B, wherein the weight ratio of the component A to the component B is 1: 0.1-0.2; the component A comprises the following raw materials in parts by weight: 10-15 parts of polyurethane resin, 10-30 parts of bisphenol fluorene epoxy resin, 30-50 parts of acrylic resin, 20-30 parts of diluent, 1-3 parts of silane coupling agent A, 8-10 parts of additive and 10-15 parts of filler; the component B comprises the following raw materials in parts by weight: 6-8 parts of diethylenetriamine, 15-25 parts of aminoethyl piperazine and 0.5-1 part of silane coupling agent B. The invention also discloses a self-lubricating bearing plate. The invention also discloses a preparation method of the self-lubricating bearing plate. The adhesive has good adhesive force and bearing capacity; the self-lubricating bearing plate has thin wall, wear resistance and high bearing capacity; the preparation process of the self-lubricating bearing plate is simple and environment-friendly.
Description
Technical Field
The invention relates to the technical field of adhesives for bearings, in particular to an adhesive for a bearing plate, a self-lubricating bearing plate and a preparation method thereof.
Background
The self-lubricating bearing does not need grease lubrication, and greatly breaks through the use limit of the traditional bearing in performance, so that the performance requirement on the self-lubricating bearing plate is high. At present, the performance of the self-lubricating bearing plate is improved by improving the plate material and the manufacturing process.
The self-lubricating bearing plate used conventionally is a laminated sintered composite plate, such as a steel-copper powder composite plate, a woven copper mesh-non-metallic material composite plate. The general manufacturing process for these composite panels is: cutting a steel plate, spreading copper powder on the surface of the steel plate, sintering, leveling, spreading non-metal antifriction material on the surface, sintering, rolling and leveling by a roller to obtain a plate with a specified thickness, preparing a blank used as a sliding bearing, and forming a part according to requirements.
Because the physical properties of steel and non-metal materials are different, such as different thermal expansion coefficients, the steel and the non-metal materials are easy to wrinkle or separate from each other when working at high temperature; during the bending process of the flat plate material, the separation between the joint surfaces of the material can be caused due to the different curvatures of the inner layer and the outer layer of the material. Therefore, in the production process, spherical copper powder is generally paved on the surface of the steel material base and sintered to increase the roughness of the surface of the steel material base and form gaps, so that the adhesion force between the non-metal antifriction material and the surface of the steel material base is improved, and the non-metal antifriction material and the steel material base are not easy to separate.
However, the copper powder sintering process is complex, the quality is difficult to control, and a large amount of energy is consumed; in addition, the sintering process can only select two metal materials, namely steel plates and copper powder, and the material selection range is narrow; in addition, in the traditional manufacturing process, the wear-resistant material is in a powder structure and is formed by rolling, so that the bearing has low bearing capacity and short service life, and the wear-resistant material is easy to fall off and separate in the using process and has higher requirements on the assembly environment.
With the development of industrial technology, the self-lubricating bearing used at present is required to have high precision, good wear resistance and thin wall, and also has large bearing capacity while the thin wall is required, and the two performances are difficult to combine, and the preparation process of the bearing plate is also required to be environment-friendly, but the current preparation process is difficult to meet the requirement.
At present, although an adhesive is used for bonding the bearing plate, the wear-resistant material is generally a polytetrafluoroethylene material, because polytetrafluoroethylene is difficult to be effectively bonded with other materials, and the high temperature and high pressure in the bearing plate processing process can reduce the viscosity of the adhesive, and the high pressure applied during the pressing bending and the bearing use process can easily separate the wear-resistant layer from the metal substrate.
Disclosure of Invention
Based on the technical problems in the prior art, the invention provides the adhesive for the bearing plate, the self-lubricating bearing plate and the preparation method thereof, wherein the adhesive has good adhesive force and bearing capacity, and can bear the conditions of high pressure, high temperature and bending in the bearing plate processing process and the bearing using process, so that the bearing plate can not be separated from the metal support sheet and the wear-resistant soft belt in the bearing processing process of high temperature, high pressure and bending into the bearing and the bearing using process; the self-lubricating bearing plate has thin wall, wear resistance and high bearing capacity; the self-lubricating bearing plate is simple in preparation process, low in consumption and environment-friendly.
The invention provides an adhesive for a bearing plate, which comprises a component A and a component B, wherein the weight ratio of the component A to the component B is 1: 0.1-0.2;
the component A comprises the following raw materials in parts by weight: 10-15 parts of polyurethane resin, 10-30 parts of bisphenol fluorene epoxy resin, 30-50 parts of acrylic resin, 20-30 parts of diluent, 1-3 parts of silane coupling agent A, 8-10 parts of additive and 10-15 parts of filler;
the component B comprises the following raw materials in parts by weight: 6-8 parts of diethylenetriamine, 15-25 parts of aminoethyl piperazine and 0.5-1 part of silane coupling agent B.
Preferably, in the preparation process of the acrylic resin, trifluoroethyl methacrylate, glycidyl methacrylate, dodecafluoroheptyl methacrylate, butyl acrylate, dodecyl mercaptan and an initiator A are uniformly mixed, the temperature is raised to 70-80 ℃, and the mixture is kept at the temperature and stirred for 40-60 min; cooling to 50-60 ℃, adding the initiator B, uniformly mixing, keeping the temperature for 24-36h, heating to 110-120 ℃, keeping the temperature and stirring for 30-50min to obtain the acrylic resin.
Preferably, in the preparation process of the acrylic resin, the initiator A and the initiator B are dicumyl peroxide.
Preferably, in the preparation process of the acrylic resin, the weight ratio of trifluoroethyl methacrylate, glycidyl methacrylate, dodecafluoroheptyl methacrylate, butyl acrylate, dodecanethiol and the initiator A is 10-15: 40-45: 15-20: 35-40: 2-3: 1-2.
Preferably, in the preparation process of the acrylic resin, the weight ratio of the initiator A to the initiator B is 1: 0.005-0.01.
Preferably, the NCO content of the polyurethane resin is 14-17% by weight.
Preferably, the additive is at least one of polyvinyl chloride, polyethylene, polypropylene and polystyrene.
Preferably, the filler is titanium dioxide.
Preferably, the silane coupling agent A is gamma-methacryloxypropyltrimethoxysilane.
Preferably, the silane coupling agent B is γ -aminopropyltriethoxysilane.
Preferably, the diluent is at least one of ethyl acetate, n-hexane, ethanol and acetone.
The invention also provides a self-lubricating bearing plate, which comprises: a wear-resistant soft belt and a metal support sheet; one side of the metal supporting sheet is smooth, and the other side of the metal supporting sheet is rough; and bonding the rough surfaces of the wear-resistant soft belt and the metal support sheet by using an adhesive, wherein the adhesive is used for the bearing plate.
Preferably, the self-lubricating bearing plate further comprises a skeleton net; the framework net is arranged between the rough surface of the metal supporting sheet and the wear-resistant soft belt; the abrasion-resistant soft belt, the framework net and the metal supporting sheet are bonded by using an adhesive.
Preferably, the thickness of the self-lubricating bearing plate is 0.5-5.5 mm.
Preferably, the thickness of the metal support sheet is 0.2-5 mm.
Preferably, the rough surface of the metal support sheet is uniformly distributed with a plurality of concave structures.
Preferably, the area of the concave structures accounts for 15-50% of the area of the single surface of the metal supporting sheet.
The depth of the concave structure can be 0.1-1 mm.
The shape of the concave structure of the rough surface of the metal support sheet can be at least one of a circle, a diamond, a rectangle, a triangle and an irregular shape.
The rough surface of the metal supporting sheet can be obtained by sand blasting, pressing, engraving, phosphorization and the like.
Preferably, the metal support sheet is made of iron, copper, aluminum, tin, zinc, titanium, scandium, vanadium, chromium, manganese, cobalt, nickel, alloy steel or electroplated steel.
The material of the metal supporting sheet can be ST12 steel plate and aluminum plate.
Preferably, the thickness of the wear-resistant soft belt is 0.1-0.5 mm.
Preferably, the tensile strength of the wear-resistant soft belt is more than or equal to 13.2MPa, and the elongation at break of the wear-resistant soft belt is more than or equal to 150%.
Preferably, the wear-resistant soft belt comprises the following raw materials in parts by weight: 80 parts of polytetrafluoroethylene, 8-10 parts of graphite and 10-12 parts of fiber reinforcing agent.
Preferably, the preparation method of the wear-resistant soft belt comprises the following steps: the wear-resistant soft belt is prepared by uniformly mixing raw materials of the wear-resistant soft belt, pressing the raw materials into a blank, sintering and cutting the blank into a soft belt, and performing sodium treatment on the soft belt.
Preferably, the procedure for sintering is: heating to 360 ℃, then cooling to 120 ℃ is taken as a period, 10-12 periods are continued, and the total sintering time is 80-96 h.
Preferably, the pressure for pressing the blank is more than or equal to 40 MPa.
Preferably, the ratio of the volume of the wear-resistant soft belt raw material to the volume of the blank in a natural state is 3.8-4: 1.
preferably, the thickness of the skeletal web is 0.15 to 0.5 mm.
Preferably, the material of the skeleton web is metal.
Preferably, the material of the skeleton net is phosphor bronze, brass, alloy steel, galvanized steel.
Preferably, the material of the skeleton web is phosphor bronze.
The mesh shape of the skeleton net can be various shapes such as a circle, a diamond, a rectangle, a triangle, a trapezoid and the like.
The invention also provides a method comprising the following steps: and coating an adhesive on one surface of the wear-resistant soft belt and the rough surface of the metal supporting sheet, attaching the rough surface of the metal supporting sheet and the wear-resistant soft belt surface coated with the adhesive, and then baking, hot-pressing and cold-pressing to obtain the self-lubricating bearing plate.
Preferably, when the self-lubricating bearing plate comprises a skeleton net, an adhesive is coated on one surface of the wear-resistant soft belt, the rough surface of the metal supporting sheet and the surface of the skeleton net, the skeleton net is placed between the rough surface of the metal supporting sheet and the surface of the wear-resistant soft belt coated with the adhesive, and then the self-lubricating bearing plate is obtained through baking, hot pressing and cold pressing.
One or both sides of the skeletal web may be coated with an adhesive.
Preferably, the baking temperature is 160-.
Preferably, the hot-pressing temperature is 185-.
Preferably, the cold pressing temperature is 5-30 ℃ and the cold pressing pressure is 19-21 MPa.
During cold pressing, cold pressing time is not specified, and the required thickness and size can be obtained according to the thickness and size of the required plate.
Preferably, the binder is diluted with an organic solvent and then coated.
The coating method can be various, such as brushing, spraying and the like.
Preferably, the volume ratio of the binder to the organic solvent is 1: 1-2.
Preferably, the organic solvent is at least one of butanone, acetone and ethanol.
The surfaces of the metal support sheet, the framework net and the wear-resistant soft belt are degreased and then coated with an adhesive.
Has the advantages that:
1. the invention has good adhesive force and bearing capacity and high temperature resistance; the bearing plate can bear the conditions of high pressure, high temperature and bending in the bearing plate processing process and the bearing using process, and the metal support sheet, the framework net and the wear-resistant soft belt are tightly bonded, so that the bearing plate can not be separated from the metal support sheet and the wear-resistant soft belt in the bearing processing process of high temperature, high pressure and bending and the bearing using process; trifluoroethyl methacrylate, glycidyl methacrylate, dodecafluoroheptyl methacrylate and butyl acrylate are selected as monomers and copolymerized in a proper proportion to prepare acrylic resin, so that the acrylic resin has good viscosity, a proper amount of fluorine is introduced into a side chain of the acrylic resin, the surface tension of the acrylic resin is reduced, the surface of the polytetrafluoroethylene wear-resistant layer is wetted, a binder is tightly adhered to the surface of the polytetrafluoroethylene wear-resistant layer, a proper amount of epoxy groups are introduced into the side chain of the acrylic resin, and the epoxy groups can be mutually matched with the acrylic resin to be tightly adhered to a metal supporting sheet, so that the polytetrafluoroethylene wear-resistant layer is tightly adhered to the metal supporting sheet, and the polytetrafluoroethylene wear-resistant layer is prevented from being separated; the appropriate amount of dodecyl mercaptan and dicumyl peroxide can ensure that the acrylic resin has appropriate molecular weight and viscosity; the polyurethane resin, the bisphenol fluorene epoxy resin and the acrylic resin are selected to be matched with each other in a proper proportion, so that the adhesion of the bearing can be further increased, and the high temperature resistance of the bearing is greatly improved, so that the bearing can keep higher viscosity when encountering high temperature in the preparation process of the bearing, and the polytetrafluoroethylene wear-resistant layer is prevented from being separated from the metal support sheet; the mutual matching of the polyvinyl chloride, the polyethylene, the polypropylene, the polystyrene and the titanium dioxide can reduce the consumption of resin, reduce the cost and further increase the viscosity and the mechanical property of the invention; the gamma-methacryloxypropyltrimethoxysilane can promote the uniform dispersion of various substances and further increase the viscosity of the invention; according to the components of the component A, diethylenetriamine, aminoethylpiperazine and gamma-aminopropyltriethoxysilane are selected to be matched with each other in a proper proportion to be used as a curing system, so that the viscosity of the adhesive can be further increased; the substances are mutually matched, so that the polytetrafluoroethylene wear-resistant coating has good adhesion performance to a polytetrafluoroethylene wear-resistant layer and a metal support sheet, has good self-adhesion, is not easy to peel off and break, and is high-temperature resistant;
2. the self-lubricating bearing plate disclosed by the invention has two types, one type does not contain a skeleton net, and the other type contains the skeleton net; the invention uses the adhesive for bonding, and the preparation process is simple; compared with the traditional sintering process mode which only can select two metal materials, namely a steel plate and copper powder, the invention can select various materials as the metal support sheet and the framework net according to the working condition and the theoretical design requirement, such as: when light weight design is needed, aluminum metal or alloy materials can be selected as the metal supporting sheet, and when corrosion resistance design is needed, stainless steel or alloy materials can be selected as the materials of the metal supporting sheet and the framework net; the invention also avoids the problems of high energy consumption, environmental pollution, potential safety hazard and easy falling of the copper powder in the process of processing and using the bearing caused by sintering the copper powder in the conventional method, and also avoids the problems of low bearing capacity and short service life of the bearing caused by rolling the copper powder, thereby increasing the bearing capacity of the bearing; the performance of the bearing plate can be further improved by selecting proper baking, hot pressing and cold pressing processes;
3. the skeleton net is made of phosphor bronze material, so that the skeleton net has good flexibility and can further improve the processing performance of the invention; the rough surface of the metal support sheet can increase the adhesiveness of the adhesive; the wear-resistant soft belt is used for replacing a powdery wear-resistant material in the traditional process, so that the problem of short service life of the bearing caused by a rolling process is avoided, and the problem that the powdery wear-resistant material is easy to fall off is avoided; the thickness of the wear-resistant soft belt is 0.1-0.5mm, which is far thicker than the thickness (0.01-0.03mm) of the powder wear-resistant material layer of the common self-lubricating bearing, so that the bearing has proper elasticity, has a fine adjustment function under the condition of larger bearing coaxiality, and greatly prolongs the service life of the bearing; by selecting proper wear-resistant soft belts, framework nets, metal supporting sheets and adhesive materials to be matched with each other and combining a proper preparation method, the self-lubricating bearing plate material has thin walls, high wear resistance and high bearing capacity, and the self-lubricating bearing prepared by the invention is convenient to install and use.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
Example 1
The adhesive for the bearing plate comprises a component A and a component B, wherein the weight ratio of the component A to the component B is 1: 0.2;
the component A comprises the following raw materials in parts by weight: 15 parts of polyurethane resin with the NCO content of 17 wt%, 10 parts of bisphenol fluorene epoxy resin, 50 parts of acrylic resin, 20 parts of n-hexane, 3 parts of gamma-methacryloxypropyl trimethoxy silane, 8 parts of polyvinyl chloride and 15 parts of titanium dioxide;
the component B comprises the following raw materials in parts by weight: 6 parts of diethylenetriamine, 25 parts of aminoethyl piperazine and 0.5 part of gamma-aminopropyltriethoxysilane;
wherein, in the preparation process of the acrylic resin, trifluoroethyl methacrylate, glycidyl methacrylate, dodecafluoroheptyl methacrylate, butyl acrylate, dodecyl mercaptan and an initiator A are uniformly mixed, the temperature is increased to 80 ℃, and the mixture is kept warm and stirred for 40 min; cooling to 60 ℃, adding an initiator B, uniformly mixing, keeping the temperature for 24h, heating to 120 ℃, keeping the temperature and stirring for 30min to obtain the acrylic resin, wherein the initiator A and the initiator B are dicumyl peroxide, trifluoroethyl methacrylate, glycidyl methacrylate, dodecafluoroheptyl methacrylate, butyl acrylate, dodecyl mercaptan and the initiator A are in a weight ratio of 5: 40: 20: 35: 3: 1, the weight ratio of the initiator A to the initiator B is 1: 0.01.
example 2
The adhesive for the bearing plate comprises a component A and a component B, wherein the weight ratio of the component A to the component B is 1: 0.1;
the component A comprises the following raw materials in parts by weight: 10 parts of polyurethane resin with the NCO content of 14 wt%, 30 parts of bisphenol fluorene epoxy resin, 30 parts of acrylic resin, 30 parts of acetone, 1 part of gamma-methacryloxypropyltrimethoxysilane, 10 parts of polyethylene and 10 parts of titanium dioxide;
the component B comprises the following raw materials in parts by weight: 8 parts of diethylenetriamine, 15 parts of aminoethyl piperazine and 1 part of gamma-aminopropyltriethoxysilane;
wherein, in the preparation process of the acrylic resin, trifluoroethyl methacrylate, glycidyl methacrylate, dodecafluoroheptyl methacrylate, butyl acrylate, dodecyl mercaptan and an initiator A are uniformly mixed, the temperature is raised to 70 ℃, and the mixture is kept warm and stirred for 60 min; cooling to 50 ℃, adding an initiator B, uniformly mixing, keeping the temperature for 36h, heating to 110 ℃, keeping the temperature and stirring for 50min to obtain the acrylic resin, wherein the initiator A and the initiator B are dicumyl peroxide, trifluoroethyl methacrylate, glycidyl methacrylate, dodecafluoroheptyl methacrylate, butyl acrylate, dodecyl mercaptan and the initiator A are in a weight ratio of 10: 45: 15: 40: 2: 2, the weight ratio of the initiator A to the initiator B is 1: 0.005.
example 3
The adhesive for the bearing plate comprises a component A and a component B, wherein the weight ratio of the component A to the component B is 1: 0.15;
the component A comprises the following raw materials in parts by weight: 12 parts of polyurethane resin with the NCO content of 16 wt%, 20 parts of bisphenol fluorene epoxy resin, 40 parts of acrylic resin, 25 parts of ethanol, 2 parts of gamma-methacryloxypropyltrimethoxysilane, 9 parts of polypropylene and 12 parts of titanium dioxide;
the component B comprises the following raw materials in parts by weight: 7 parts of diethylenetriamine, 20 parts of aminoethyl piperazine and 0.7 part of gamma-aminopropyltriethoxysilane;
wherein, in the preparation process of the acrylic resin, trifluoroethyl methacrylate, glycidyl methacrylate, dodecafluoroheptyl methacrylate, butyl acrylate, dodecyl mercaptan and an initiator A are uniformly mixed, the temperature is increased to 75 ℃, and the mixture is kept warm and stirred for 50 min; cooling to 55 ℃, adding an initiator B, uniformly mixing, keeping the temperature for 30h, heating to 115 ℃, keeping the temperature and stirring for 40min to obtain the acrylic resin, wherein the initiator A and the initiator B are dicumyl peroxide, trifluoroethyl methacrylate, glycidyl methacrylate, dodecafluoroheptyl methacrylate, butyl acrylate, dodecyl mercaptan and the initiator A are mixed according to the weight ratio of 12: 42: 17: 37: 2.5: 1.5, the weight ratio of the initiator A to the initiator B is 1: 0.007.
example 4
A self-lubricating bearing sheet material comprising: a wear-resistant soft belt with the thickness of 0.5mm and a metal support sheet with the thickness of 5 mm; one side of the metal supporting sheet is smooth, and the other side of the metal supporting sheet is rough; bonding the abrasion-resistant soft belt and the rough surface of the metal support sheet by using an adhesive, wherein the adhesive is used for the bearing plate material of the embodiment 3;
wherein, the thickness of the self-lubricating bearing plate is 5.5 mm;
the metal support sheet is made of alloy steel, a plurality of concave structures are uniformly distributed on the surface of the rough surface of the metal support sheet, the area of each concave structure accounts for 50% of the area of the single surface of the metal support sheet, and the depth of each concave structure is 1 mm;
the tensile strength of the wear-resistant soft belt is more than or equal to 13.2MPa, and the elongation at break of the wear-resistant soft belt is more than or equal to 150 percent;
the wear-resistant soft belt comprises the following raw materials in parts by weight: 80 parts of polytetrafluoroethylene, 8 parts of graphite and 12 parts of fiber reinforcing agent;
the preparation method of the wear-resistant soft belt comprises the following steps: uniformly mixing raw materials of the wear-resistant soft belt, pressing the raw materials into a blank under the pressure of more than or equal to 40MPa, sintering, cutting the blank into the soft belt, and performing sodium treatment to obtain the wear-resistant soft belt, wherein the sintering process comprises the following steps: heating to 360 ℃, and then cooling to 120 ℃ for 12 continuous cycles, wherein the total sintering time is 96 h; the ratio of the volume of the wear-resistant soft belt raw material to the volume of the blank in a natural state is 3.8: 1.
the preparation method of the self-lubricating bearing plate comprises the following steps: taking a wear-resistant soft belt, a metal supporting sheet and a framework net for degreasing treatment, then coating diluted adhesives on one surface of the wear-resistant soft belt and the rough surface of the metal supporting sheet, attaching the rough surface of the metal supporting sheet and the wear-resistant soft belt surface coated with the adhesives, then baking at 180 ℃ for 8min, then adjusting the temperature to 200 ℃, the pressure to 10MPa, hot-pressing for 20min, then adjusting the temperature to 30 ℃, and cold-pressing at the pressure to 19MPa to obtain the self-lubricating bearing plate, wherein the adhesives are diluted by butanone, and the volume ratio of the butanone to the adhesives is 1: 2.
example 5
A self-lubricating bearing sheet material comprising: the thickness is 0.1mm wear-resisting soft area, thickness is 0.2mm skeleton net, thickness is 0.2mm metal backing sheet; one side of the metal supporting sheet is smooth, and the other side of the metal supporting sheet is rough; the framework net is arranged between the rough surface of the metal supporting sheet and the wear-resistant soft belt; bonding the wear-resistant soft belt, the skeleton mesh and the metal support sheet by using an adhesive, wherein the adhesive is used for the bearing plate material in the embodiment 3;
wherein, the thickness of the self-lubricating bearing plate is 0.5mm, and the material of the framework net is brass;
the metal supporting sheet is made of an aluminum plate, a plurality of concave structures are uniformly distributed on the surface of the rough surface of the metal supporting sheet, the area of each concave structure accounts for 15% of the area of the single surface of the metal supporting sheet, and the depth of each concave structure is 0.1 mm;
the tensile strength of the wear-resistant soft belt is more than or equal to 13.2MPa, and the elongation at break of the wear-resistant soft belt is more than or equal to 150 percent;
the wear-resistant soft belt comprises the following raw materials in parts by weight: 80 parts of polytetrafluoroethylene, 10 parts of graphite and 10 parts of fiber reinforcing agent;
the preparation method of the wear-resistant soft belt comprises the following steps: uniformly mixing raw materials of the wear-resistant soft belt, pressing the raw materials into a blank under the pressure of more than or equal to 40MPa, sintering, cutting the blank into the soft belt, and performing sodium treatment to obtain the wear-resistant soft belt, wherein the sintering process comprises the following steps: heating to 360 ℃, and then cooling to 120 ℃ for 10 continuous cycles, wherein the total sintering time is 80 h; the ratio of the volume of the wear-resistant soft belt raw material to the volume of the blank in a natural state is 4: 1.
the preparation method of the self-lubricating bearing plate comprises the following steps: taking a wear-resistant soft belt, a metal supporting sheet and a framework net for degreasing treatment, then coating diluted adhesives on one surface of the wear-resistant soft belt, the rough surface of the metal supporting sheet and the surface of the framework net, placing the framework net between the rough surface of the metal supporting sheet and the wear-resistant soft belt surface coated with the adhesives, then baking at 160 ℃ for 12min, then adjusting the temperature to 185 ℃, the pressure to 12MPa, hot pressing for 10min, then adjusting the temperature to 5 ℃ and the pressure to 21MPa, and cold pressing to obtain the self-lubricating bearing plate, wherein the adhesives are diluted by acetone, and the volume ratio of the acetone to the adhesives is 1: 1.
example 6
A self-lubricating bearing sheet material comprising: the thickness is 0.3mm wear-resisting soft area, thickness is 0.3mm skeleton net, thickness is 2mm metal backing sheet; one side of the metal supporting sheet is smooth, and the other side of the metal supporting sheet is rough; the framework net is arranged between the rough surface of the metal supporting sheet and the wear-resistant soft belt; bonding the wear-resistant soft belt, the skeleton mesh and the metal support sheet by using an adhesive, wherein the adhesive is used for the bearing plate material in the embodiment 3;
wherein, the thickness of the self-lubricating bearing plate is 2.6mm, and the material of the skeleton net is phosphor bronze;
the metal supporting sheet is made of an ST12 steel plate, a plurality of concave structures are uniformly distributed on the surface of the rough surface of the metal supporting sheet, the area of each concave structure accounts for 25% of the area of the single surface of the metal supporting sheet, and the depth of each concave structure is 1 mm;
the tensile strength of the wear-resistant soft belt is more than or equal to 13.2MPa, and the elongation at break of the wear-resistant soft belt is more than or equal to 150 percent;
the wear-resistant soft belt comprises the following raw materials in parts by weight: 80 parts of polytetrafluoroethylene, 9 parts of graphite and 11 parts of fiber reinforcing agent;
the preparation method of the wear-resistant soft belt comprises the following steps: uniformly mixing raw materials of the wear-resistant soft belt, pressing the raw materials into a blank under the pressure of more than or equal to 40MPa, sintering, cutting the blank into the soft belt, and performing sodium treatment to obtain the wear-resistant soft belt, wherein the sintering process comprises the following steps: heating to 360 ℃, and then cooling to 120 ℃ for 10 continuous cycles, wherein the total sintering time is 80 h; the ratio of the volume of the wear-resistant soft belt raw material to the volume of the blank in a natural state is 3.9: 1.
the preparation method of the self-lubricating bearing plate comprises the following steps: taking a wear-resistant soft belt, a metal support sheet and a skeleton net for degreasing treatment, then coating diluted adhesives on one surface of the wear-resistant soft belt, the rough surface of the metal support sheet and the surface of the skeleton net, placing the skeleton net between the rough surface of the metal support sheet and the wear-resistant soft belt surface coated with the adhesives, then baking at 170 ℃ for 10min, then adjusting the temperature to 190 ℃, the pressure to 11MPa, hot pressing for 15min, then adjusting the temperature to 20 ℃, and cold pressing at the pressure of 20MPa to obtain the self-lubricating bearing plate, wherein the adhesives are diluted by ethanol, and the volume ratio of the ethanol to the adhesives is 1: 1.5.
comparative example 1
The procedure of example 3 was repeated except that the acrylic resin was not added.
Comparative example 2
The procedure of example 3 was repeated except that bisphenol fluorene epoxy resin and urethane resin were not added.
Comparative example 3
The B component was changed to diaminodiphenylmethane, otherwise the same as in example 3.
Comparative example 4
The same procedure as in example 5 was repeated, except that the bisphenol fluorene epoxy resin and the urethane resin were not added, and the acrylic resin in example 3 was replaced with a general acrylic resin (the monomer of which was butyl acrylate and acrylic acid).
Test example 1
The component B in example 3 and comparative examples 1 to 4 was added to the corresponding component A and mixed, and then a self-lubricating bearing plate was prepared according to the raw material and method of example 6.
Detecting the bonding performance of the wear-resistant soft belt, the metal support sheet and the framework net, processing each self-lubricating bearing plate into bearings with the same specification and size, and observing the bonding condition of the wear-resistant soft belt, the metal support sheet and the framework net in the bearings, wherein the results are as follows:
the invention has good adhesive property by selecting proper acrylic resin, bisphenol fluorene epoxy resin, polyurethane resin and curing agent, and has good adhesive property after high-temperature hot pressing.
Comparative example 5
The self-lubricating bearing plate is prepared according to the processes of cutting a steel plate, spreading copper powder on the surface of the steel plate, sintering, leveling, spreading non-metal antifriction material on the surface, sintering and rolling and leveling by a roller, the thickness of the self-lubricating bearing plate is the same as that of the self-lubricating bearing plate in example 6, the thickness of the steel plate is the same as that of the metal support sheet in example 6, the thickness of the non-metal antifriction material is the same as that of the wear-resistant soft belt in example 6, and the thickness of the copper powder layer is the same as that of the.
Test example 2
The self-lubricating bearing plates of example 6 and comparative example 5 were tested for their properties and the results are given in the following table:
and (4) conclusion: the bearing plate prepared according to the invention has the advantages of thin wall, large bearing capacity and good wear resistance.
Note that the above performance values are experimental test data and should not be used as design criteria.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The adhesive for the bearing plate is characterized by comprising a component A and a component B, wherein the weight ratio of the component A to the component B is 1: 0.1-0.2;
the component A comprises the following raw materials in parts by weight: 10-15 parts of polyurethane resin, 10-30 parts of bisphenol fluorene epoxy resin, 30-50 parts of acrylic resin, 20-30 parts of diluent, 1-3 parts of silane coupling agent A, 8-10 parts of additive and 10-15 parts of filler;
the component B comprises the following raw materials in parts by weight: 6-8 parts of diethylenetriamine, 15-25 parts of aminoethyl piperazine and 0.5-1 part of silane coupling agent B.
2. The adhesive for the bearing plate as claimed in claim 1, wherein in the preparation process of the acrylic resin, trifluoroethyl methacrylate, glycidyl methacrylate, dodecafluoro heptyl methacrylate, butyl acrylate, dodecyl mercaptan and an initiator A are uniformly mixed, heated to 70-80 ℃, and stirred for 40-60min under heat preservation; cooling to 50-60 ℃, adding the initiator B, uniformly mixing, keeping the temperature for 24-36h, heating to 110-120 ℃, keeping the temperature and stirring for 30-50min to obtain acrylic resin; preferably, in the preparation process of the acrylic resin, the initiator A and the initiator B are both dicumyl peroxide; preferably, in the preparation process of the acrylic resin, the weight ratio of trifluoroethyl methacrylate, glycidyl methacrylate, dodecafluoroheptyl methacrylate, butyl acrylate, dodecanethiol and the initiator A is 10-15: 40-45: 15-20: 35-40: 2-3: 1-2; preferably, in the preparation process of the acrylic resin, the weight ratio of the initiator A to the initiator B is 1: 0.005-0.01.
3. The adhesive for bearing plates as claimed in claim 1 or 2, wherein the urethane resin has an NCO content of 14 to 17 wt%; preferably, the additive is at least one of polyvinyl chloride, polyethylene, polypropylene and polystyrene; preferably, the filler is titanium dioxide; preferably, the silane coupling agent A is gamma-methacryloxypropyltrimethoxysilane; preferably, the silane coupling agent B is gamma-aminopropyltriethoxysilane; preferably, the diluent is at least one of ethyl acetate, n-hexane, ethanol and acetone.
4. A self-lubricating bearing sheet material, comprising: a wear-resistant soft belt and a metal support sheet; one side of the metal supporting sheet is smooth, and the other side of the metal supporting sheet is rough; bonding the abrasion-resistant flexible tape to the roughened surface of the metal support sheet with an adhesive for bearing plates according to any one of claims 1 to 3.
5. The self-lubricating bearing sheet of claim 4, further comprising a skeletal mesh; the framework net is arranged between the rough surface of the metal supporting sheet and the wear-resistant soft belt; the abrasion-resistant soft belt, the framework net and the metal supporting sheet are bonded by using an adhesive.
6. A self-lubricating bearing plate as claimed in claim 4 or 5, wherein the thickness of the self-lubricating bearing plate is 0.5-5.5 mm; preferably, the thickness of the metal supporting sheet is 0.2-5 mm; preferably, a plurality of concave structures are uniformly distributed on the surface of the rough surface of the metal support sheet; preferably, the area of the concave structure accounts for 15-50% of the single-side area of the metal support sheet; preferably, the metal support sheet is made of iron, copper, aluminum, tin, zinc, titanium, scandium, vanadium, chromium, manganese, cobalt, nickel, alloy steel or electroplated steel; preferably, the thickness of the wear-resistant soft belt is 0.1-0.5 mm; preferably, the tensile strength of the wear-resistant soft belt is more than or equal to 13.2MPa, and the elongation at break of the wear-resistant soft belt is more than or equal to 150 percent; preferably, the wear-resistant soft belt comprises the following raw materials in parts by weight: 80 parts of polytetrafluoroethylene, 8-10 parts of graphite and 10-12 parts of fiber reinforcing agent; preferably, the preparation method of the wear-resistant soft belt comprises the following steps: uniformly mixing raw materials of the wear-resistant soft belt, pressing the raw materials into a blank, sintering the blank, cutting the blank into a soft belt, and performing sodium treatment to obtain the wear-resistant soft belt; preferably, the procedure for sintering is: heating to 360 ℃, then cooling to 120 ℃ as a period, continuously carrying out 10-12 periods, and keeping the total sintering time at 80-96 h; preferably, the pressure for pressing the blank is more than or equal to 40 MPa; preferably, the ratio of the volume of the wear-resistant soft belt raw material to the volume of the blank in a natural state is 3.8-4: 1.
7. a self-lubricating bearing sheet material as claimed in claim 5 or claim 6, in which the skeleton web is 0.15 to 0.5mm thick; preferably, the material of the skeleton net is metal; preferably, the skeleton net is made of phosphor bronze, brass, alloy steel and galvanized steel; preferably, the material of the skeleton web is phosphor bronze.
8. A method of manufacturing a self-lubricating bearing plate material as claimed in any one of claims 4 to 8, comprising the steps of: and coating an adhesive on one surface of the wear-resistant soft belt and the rough surface of the metal supporting sheet, attaching the rough surface of the metal supporting sheet and the wear-resistant soft belt surface coated with the adhesive, and then baking, hot-pressing and cold-pressing to obtain the self-lubricating bearing plate.
9. The method for producing a self-lubricating bearing plate material as claimed in claim 8, wherein when the self-lubricating bearing plate material comprises a skeleton net, the adhesive is applied to one surface of the wear-resistant soft belt, the rough surface of the metal support sheet and the surface of the skeleton net, the skeleton net is placed between the rough surface of the metal support sheet and the surface of the wear-resistant soft belt coated with the adhesive, and then the self-lubricating bearing plate material is obtained by baking, hot pressing and cold pressing.
10. The method for producing a self-lubricating bearing plate as claimed in claim 8 or 9, wherein the baking temperature is 160-180 ℃ and the baking time is 8-12 min; preferably, the hot-pressing temperature is 185-; preferably, the cold pressing temperature is 5-30 ℃, and the cold pressing pressure is 19-21 MPa; preferably, the adhesive is diluted by an organic solvent and then coated on the surfaces of the metal supporting sheet, the framework net and the wear-resistant soft belt; preferably, the volume ratio of the binder to the organic solvent is 1: 1-2; preferably, the organic solvent is at least one of butanone, acetone and ethanol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910754355.2A CN110591568A (en) | 2019-08-15 | 2019-08-15 | Adhesive for bearing plate, self-lubricating bearing plate and preparation method of self-lubricating bearing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910754355.2A CN110591568A (en) | 2019-08-15 | 2019-08-15 | Adhesive for bearing plate, self-lubricating bearing plate and preparation method of self-lubricating bearing plate |
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| CN110591568A true CN110591568A (en) | 2019-12-20 |
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| CN201910754355.2A Withdrawn CN110591568A (en) | 2019-08-15 | 2019-08-15 | Adhesive for bearing plate, self-lubricating bearing plate and preparation method of self-lubricating bearing plate |
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| CN113187820A (en) * | 2021-04-20 | 2021-07-30 | 怀宁吉利来精密机械科技有限公司 | Novel high-performance adhesive composite self-lubricating composite material and composite bearing |
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Application publication date: 20191220 |