CN109177201A - A kind of self-lubricating double-layer composite material and preparation method thereof - Google Patents
A kind of self-lubricating double-layer composite material and preparation method thereof Download PDFInfo
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- CN109177201A CN109177201A CN201811039185.1A CN201811039185A CN109177201A CN 109177201 A CN109177201 A CN 109177201A CN 201811039185 A CN201811039185 A CN 201811039185A CN 109177201 A CN109177201 A CN 109177201A
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- 239000002131 composite material Substances 0.000 title claims abstract description 67
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000011159 matrix material Substances 0.000 claims abstract description 66
- 150000001875 compounds Chemical class 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 28
- 239000000654 additive Substances 0.000 claims abstract description 18
- 230000000996 additive effect Effects 0.000 claims abstract description 18
- 239000010410 layer Substances 0.000 claims description 126
- 239000007788 liquid Substances 0.000 claims description 24
- 238000004519 manufacturing process Methods 0.000 claims description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 238000007711 solidification Methods 0.000 claims description 16
- 230000008023 solidification Effects 0.000 claims description 16
- 230000001050 lubricating effect Effects 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 239000000314 lubricant Substances 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 230000007797 corrosion Effects 0.000 claims description 7
- 238000005260 corrosion Methods 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 229920006231 aramid fiber Polymers 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 239000002344 surface layer Substances 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 229910021389 graphene Inorganic materials 0.000 claims description 4
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical group S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 4
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 3
- 229920002530 polyetherether ketone Polymers 0.000 claims description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004695 Polyether sulfone Substances 0.000 claims description 2
- 239000004642 Polyimide Substances 0.000 claims description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 2
- 229920001568 phenolic resin Polymers 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 229920006393 polyether sulfone Polymers 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 claims 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- 239000004917 carbon fiber Substances 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000007767 bonding agent Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910002114 biscuit porcelain Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920013657 polymer matrix composite Polymers 0.000 description 2
- 239000011160 polymer matrix composite Substances 0.000 description 2
- 238000005488 sandblasting Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000011185 multilayer composite material Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/70—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/001—Joining in special atmospheres
- B29C66/0012—Joining in special atmospheres characterised by the type of environment
- B29C66/0014—Gaseous environments
- B29C66/00141—Protective gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/022—Mechanical pre-treatments, e.g. reshaping
- B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/026—Chemical pre-treatments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
- B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
- B29L2009/003—Layered products comprising a metal layer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Laminated Bodies (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The present invention discloses a kind of self-lubricating double-layer composite material and preparation method thereof, belongs to self-lubricating material field, structure includes metallic base layer, self-lubricating layer；The side of the metallic base layer is equipped with blind hole, and the self-lubricating layer is embedded in metallic matrix layer surface, and the metallic base layer is with a thickness of 1-50mm, and the self-lubricating layer is with a thickness of 0.03-1.0mm；The self-lubricating layer is made of polymeric matrix and additive, and the ratio by mass percentages of additive are 5-35%.Self-lubricating double-layer composite material of the present invention is by raw material premix, makees hole, compound, is obtained by being heating and curing.Preparation process simplicity of the present invention, less energy consumption, pollution are few, and the double-layer composite material binding force of acquisition is strong, self-lubricating property is good, the case where capable of using under harsh working condition, reduce peeling-off failure.
Description
Technical field
The invention belongs to self-lubricating material field, in particular to a kind of self-lubricating type double-layer composite material and its preparation side
Method.
Background technique
Applied currently on the market using polymer matrix composite is the self-lubricating material of self-lubricating layer based on three layers, packet
Include metallic base layer, middle layer and self-lubricating composite surface layer.
Middle layer is usually made of bonding agent or the spherical copper powder layer of sintering.The three-layer self lubricating being combined with bonding agent
Use is not achieved under the applied at elevated temperature operating condition of part due to being limited by bonding agent and bonding complex condition in composite material
It is required that removing failure conditions can be generated under the working condition of alternating load, and binder easily causes environment there are certain toxicity
Pollution.Although with sintered copper bisque come improve the 3-layer composite material of the bond strength of base layer and surface layer can be in working condition
Lower use, but the type thin multilayer composite material, such as application No. is the 200810235590.0 " profits certainly of oil lubrication or grease lubrication
Sliding sliding bearing " patent document, disclosed self-lubricating thickness is 0.02mm, since self-lubricating layer too thin surface self-lubricating layer cannot
Machining is carried out, requirement of the part industrial occasions to high-precision cooperation is unable to satisfy, in addition after surface self-lubricating layer abrasion
Coefficient of friction generates variation and is unable to satisfy the industrial working condition requirement that part needs long-time stable friction；And the thick-layer of the type is multiple
Condensation material generates removing easily in machining process and under unstable varying load working condition；In addition the system of such material
Make complex process, at high cost, energy consumption increases.
Summary of the invention
It is an object of the invention to overcome defect of the existing technology, provide a kind of self-lubricating double-layer composite material and its
Preparation method.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of self-lubricating double-layer composite material, including metallic base layer, self-lubricating layer；The side of the metallic base layer is equipped with blind
Hole, the self-lubricating layer are embedded in metallic matrix layer surface, and the metallic base layer is with a thickness of 1-50mm, the self-lubricating thickness
Degree is 0.03-1.0mm；The self-lubricating layer is made of polymeric matrix and additive, the ratio by mass percentage of additive
It is calculated as 5-35%.
Further scheme, the blind hole of the metallic matrix layer surface are that cylindricality blind hole or bottom area are greater than opening portion area
Blind hole, blind hole is distributed on metallic base layer, diameter of blind hole 0.1-2mm, and the depth of blind hole is 0.5-2mm, blind hole
Total surface area is the 20-50% of metallic matrix surface layer.
Further scheme, the polymeric matrix are polytetrafluoroethylene (PTFE), polyamide, polyimides, polyphenylene sulfide, polyethers ether
At least one of ketone, polyether sulfone, phenolic resin, epoxy resin；
Additive in the self-lubricating layer includes solid lubricant and anti-wear agent；The solid lubricant is molybdenum disulfide, stone
At least one of ink, graphite oxide, graphene, graphene oxide, lead, polytetrafluoroethylene (PTFE)；The anti-wear agent is aramid fiber powder, carbon
At least one of fiber, glass fibre, silicon carbide, aluminium oxide, zirconium oxide, iron oxide.
It is another object of the present invention to provide a kind of preparation method of self-lubricating double-layer composite material, the tools of this method
Steps are as follows for body:
S10, self-lubricating composite premix: selected polymeric matrix and additive are uniformly mixed；
S20, production blind hole: blind hole is processed in the side of metallic matrix plate；
It is S30, compound: self-lubricating composite premix is filled into blind hole and metallic matrix plate surface；
S40, solidification: the metallic matrix plate after will be compound solidifies 10-60min under 150-400 DEG C, nitrogen protection atmosphere, makes certainly
It is multiple to obtain self-lubricating bilayer after room temperature is cooling for lubricating composite solidification, self lubricating compound layer and metallic matrix plate strong bond
Condensation material.
Further scheme, further comprising the steps of between S20 makes blind hole and S30 is compound:
S21, production screw thread: producing screw thread in blind hole, and the screw thread is fine thread.
Further scheme, further comprising the steps of between S20 makes blind hole and S30 is compound:
S22, corrosion blind hole: filling corrosive liquid in blind hole, the liquid level of corrosive liquid is lower than the height of blind hole, and corrosive liquid is to blind hole
Corroded.
It is yet a further object of the present invention to provide a kind of self-lubricating double-layer gear pump side plates, double-deck using above-mentioned self-lubricating
Composite material, the external form of side plate are " 8 " font.
It is yet a further object of the present invention to provide a kind of preparation method of self-lubricating double-layer gear pump side plate, including it is following
Step:
S10, self-lubricating composite premix: selected polymeric matrix and additive are uniformly mixed；
S11, metallic matrix plate stamp: metallic matrix plate is gone out to the shape of side plate；
S20, production blind hole: blind hole is processed in the side of metallic matrix plate；
S21, production screw thread: producing screw thread in blind hole, and the screw thread is fine thread.
S22, corrosion blind hole: filling corrosive liquid in blind hole, the liquid level of corrosive liquid is lower than the height of blind hole, corrosive liquid pair
Blind hole is corroded；
It is S30, compound: self-lubricating composite premix is filled into blind hole and metallic matrix plate surface；
S40, solidification: the metallic matrix plate after will be compound solidifies 10-60min under 150-400 DEG C, nitrogen protection atmosphere, makes certainly
Lubricating composite solidification, self lubricating compound layer and metallic matrix plate strong bond obtain side plate blank after room temperature is cooling；
S50, side plate processing: the side plate blank of production is processed into side plate finished product.
It is yet a further object of the present invention to provide a kind of self-lubricating bearing, using above-mentioned self-lubricating double-layer composite material,
The external form of bearing is hollow cylinder.
It is yet a further object of the present invention to provide a kind of preparation methods of self-lubricating bearing, comprising the following steps:
S10, self-lubricating composite premix: selected polymeric matrix and additive are uniformly mixed；
S20, production blind hole: blind hole is processed in the side of metallic matrix plate；
It is S30, compound: self-lubricating composite premix is filled into blind hole and metallic matrix plate surface；
S40, solidification: the metallic matrix plate after will be compound solidifies 10-60min under 150-400 DEG C, nitrogen protection atmosphere, makes certainly
Lubricating composite solidification, self lubricating compound layer and metallic matrix plate strong bond obtain self-lubricating plate material after room temperature is cooling；
S60, wrapped bearing bush: self-lubricating plate material is rolled into bearing blank；
S70, bearing machining: bearing blank is processed into bearing products.
Compared with prior art, the application has the beneficial effect that:
Self-lubricating double-layer composite material described herein, pollute without using binder in preparation process it is small, relative to containing sintering
Composite material preparation process in the 3-layer composite material present invention of copper powder layer is easy, it is only necessary to: polymer-based self-lubricating is compound
Material premixes, metallic base layer makees hole, premix composite material and metal plate are compound, double layer material solidifies this four procedure, and contains
The 3-layer composite material of sintered copper bisque needs composite material premix, copper facing, the sintering of copper powder layer, premix composite material compound, thick
It rolls, solidify, complicated procedures of forming, copper facing and the copper powder layer such as finish rolling are sintered the cost of manufacture that this two procedures just considerably increases material
And energy consumption.
Self-lubricating double-layer composite material described herein, the hole for layer on surface of metal are that bottom area is greater than opening portion
When the hole of area, the self-lubricating double-layer composite material of preparation be can be used directly, and the self-lubricating composite in blind hole is by self-lubricating
Composite layer is firmly fixed in blind hole；When hole for layer on surface of metal is cylindrical hole, the self-lubricating composite wood of preparation
Material can be made into corresponding self-lubricating plain bearing components, when rolling, inner wall material by series of process such as curling, shapings
Material can deform, and blind hole opening portion is squeezed, and opening portion area can be less than the area before deformation, and outer wall materials can be stretched, blind
Hole bottom can also be stretched, and the bottom area that can thus generate blind hole is greater than opening portion area, make self-lubricating composite layer
Firmly it is fixed in blind hole.
Further, the self-lubricating double-layer composite material of the application, during production, filling is rotten in blind hole
Liquid is lost, the liquid level of corrosive liquid is lower than the height of blind hole, and corrosive liquid carries out blind hole to blind hole；It can be formed in this way before rolling
The bottom area of blind hole is greater than opening portion area.
Further, the self-lubricating double-layer composite material of the application is convenient for by producing screw thread in blind hole
Screw thread is beneficial to the connection of air pressure convenient for corrosion, the lines of screw thread.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
In figure: 1- metallic base layer, 2- self-lubricating layer, 3- blind hole.
Specific embodiment
Present invention is further described in detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, a kind of self-lubricating double-layer composite material, structure are as follows: including metallic base layer 1, self-lubricating layer 2,
The side of metallic base layer is equipped with blind hole 3, and self-lubricating layer 2 is embedded in 1 surface of metallic base layer, and metallic base layer 1 is with a thickness of 1-
50mm, self-lubricating layer 2 are made of with a thickness of 0.03-1.0mm, self-lubricating layer 2 polymeric matrix and additive, the ratio of additive
It is by weight percentage 5-35%.The self-lubricating double-layer composite material can be used to make self-lubricating bearing, gear pump side
Plate.
Embodiment one
A kind of self-lubricating double-layer gear pump side plate, using self-lubricating double-layer composite material of the present invention, structure further includes
The external form of side plate is " 8 " font, and self-lubricating layer 2 is with a thickness of 0.15mm.
Metallic base layer 1 selects carbon steel sheet, and metallic matrix plate surface is roughened using plucking, sandblasting mode.
The blind hole on 1 surface of metallic base layer is the blind hole 3 that bottom area is greater than opening portion area, and blind hole is distributed in Metal Substrate
On body layer 1, diameter of blind hole 1mm, the depth of blind hole is 2mm, and the total surface area of blind hole is metallic matrix surface layer
50%。
Polymeric matrix in self-lubricating layer 2 is polytetrafluoroethylene (PTFE), and the additive in self-lubricating layer includes solid lubricant
And anti-wear agent, solid lubricant are molybdenum disulfide, graphite；Anti-wear agent is aramid fiber powder.
The present embodiment self-lubricating double-layer gear pump side plate, preparation method the following steps are included:
S10, self-lubricating composite premix: weight percent is polytetrafluoroethylene (PTFE) 95%, molybdenum disulfide 2%, graphite 1%, aramid fiber
Powder 2% weighs raw material, is then uniformly mixed；
S11, metallic matrix plate stamp: metallic matrix plate is gone out to the shape of side plate；
S20, production blind hole: blind hole is processed in the side of metallic matrix plate；
S21, production screw thread: producing screw thread in blind hole, and the screw thread is fine thread.
S22, corrosion blind hole: filling corrosive liquid in blind hole, the liquid level of corrosive liquid is lower than the height of blind hole, corrosive liquid pair
Blind hole is corroded；
It is S30, compound: self-lubricating composite premix is filled into blind hole and metallic matrix plate surface；
S40, solidification: the metallic matrix plate after will be compound solidifies 60min under 400 DEG C, nitrogen protection atmosphere, keeps self-lubricating compound
Material solidification, self lubricating compound layer and metallic matrix plate strong bond obtain self-lubricating double-layer composite material after room temperature is cooling；
S50, side plate processing: 2 thickness of self-lubricating layer is processed as 0.15mm, the side plate blank of production is processed into side plate finished product.
By producing screw thread in blind hole, convenient for screw thread convenient for corrosion, the lines of screw thread is beneficial to the connection of air pressure.
Such self-lubricating double-layer composite material, the material in blind hole 32 is integrated layer by layer with self-lubricating, due to blind via bottom
Area is greater than opening portion area, and the material in blind hole 3 can be securely embedded in metallic base layer 1, thus self-lubricating layer self-lubricating layer 2
It will firmly be fixed on metallic base layer 1, in addition it is multiple to improve non-bore portion polymer matrix for the coarse surface of metallic base layer 1
The bond strength of condensation material layer 2 and metallic base layer 1, its polymer matrix composite wood of thus obtained self-lubricating double-layer composite material
The bond strength of the bed of material and metallic base layer is very high.
Embodiment two
A kind of self-lubricating bearing, using self-lubricating double-layer composite material of the present invention, structure further includes that bearing is hollow
Cylinder, self-lubricating layer 2 is with a thickness of 0.03mm.
Metallic base layer 1 selects carbon steel sheet, and metallic matrix plate surface is roughened using plucking, sandblasting mode.
The blind hole of metallic matrix layer surface is cylindricality blind hole 3, and blind hole is distributed on metallic base layer 1, and diameter of blind hole is
0.5mm, the depth of blind hole are 0.5mm, and the total surface area of blind hole is the 35% of metallic matrix surface layer.
Polymeric matrix in self-lubricating layer 2 is polyether-ether-ketone.Additive in self-lubricating layer include solid lubricant and
Anti-wear agent, solid lubricant are graphite；Anti-wear agent is aramid fiber powder, iron oxide.
The present embodiment self-lubricating bearing, preparation method the following steps are included:
S10, self-lubricating composite premix: weight percent is polyether-ether-ketone 65%, graphite 17%, aramid fiber powder 12%, iron oxide
6% weighs raw material, is then uniformly mixed；
S20, production blind hole: blind hole is processed in the side of metallic matrix plate；
It is S30, compound: self-lubricating composite premix is filled into blind hole and metallic matrix plate surface；
S40, solidification: the metallic matrix plate after will be compound solidifies 30min under 380 DEG C, nitrogen protection atmosphere, keeps self-lubricating compound
Material solidification, self lubricating compound layer and metallic matrix plate strong bond obtain self-lubricating double-layer composite material after room temperature is cooling.
S60, wrapped bearing bush: self-lubricating plate material is rolled into bearing blank；
S70, bearing machining: 2 thickness of self-lubricating layer is processed as 0.03mm, bearing blank is processed into bearing products.
Such self-lubricating bearing is to roll, and when rolling, inner-wall material can be deformed, and 3 opening portion of blind hole is squeezed,
Opening portion area can be less than the area before deformation, and outer wall materials can be stretched, and 3 bottom of blind hole can also be stretched, and can thus produce
The bottom area of raw blind hole 3 is greater than opening portion area, is fixed on self-lubricating composite layer firmly in blind hole, in addition metal
The coarse surface of base layer 1 can improve the bond strength of non-bore portion self-lubricating layer 2 and metallic base layer 1.It is thus obtained from
The bond strength of lubricative axle sleeve self-lubricating layer and metallic base layer is high.
This hair can be understood and applied the above description of the embodiments is intended to facilitate those skilled in the art
It is bright.Person skilled in the art obviously easily can make various modifications to case study on implementation, and described herein one
As principle be applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to implementation cases here
Example, those skilled in the art's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be
Within protection scope of the present invention.
Claims (10)
1. a kind of self-lubricating double-layer composite material, it is characterised in that: including metallic base layer, self-lubricating layer；The metallic matrix
The side of layer is equipped with blind hole, and the self-lubricating layer is embedded in metallic matrix layer surface, the metallic base layer with a thickness of 1-50mm,
The self-lubricating layer is with a thickness of 0.03-1.0mm；The self-lubricating layer is made of polymeric matrix and additive, the ratio of additive
Example is 5-35% by weight percentage.
2. self-lubricating double-layer composite material according to claim 1, it is characterised in that: the metallic matrix layer surface it is blind
Hole is the blind hole that cylindricality blind hole or bottom area are greater than opening portion area, and blind hole is distributed on metallic base layer, diameter of blind hole
For 0.1-2mm, the depth of blind hole is 0.5-2mm, and the total surface area of blind hole is the 20-50% of metallic matrix surface layer.
3. self-lubricating double-layer composite material according to claim 1, it is characterised in that: the polymeric matrix is polytetrafluoro
At least one of ethylene, polyamide, polyimides, polyphenylene sulfide, polyether-ether-ketone, polyether sulfone, phenolic resin, epoxy resin；
Additive in the self-lubricating layer includes solid lubricant and anti-wear agent；
The solid lubricant is molybdenum disulfide, in graphite, graphite oxide, graphene, graphene oxide, lead, polytetrafluoroethylene (PTFE)
At least one；The anti-wear agent is aramid fiber powder, in carbon fiber, glass fibre, silicon carbide, aluminium oxide, zirconium oxide, iron oxide
It is at least one.
4. the preparation method of self-lubricating double-layer composite material as described in claim any one of 1-3, it is characterised in that this method
Specific step is as follows:
S10, self-lubricating composite premix: selected polymeric matrix and additive are uniformly mixed；
S20, production blind hole: blind hole is processed in the side of metallic matrix plate；
It is S30, compound: self-lubricating composite premix is filled into blind hole and metallic matrix plate surface；
S40, solidification: the metallic matrix plate after will be compound solidifies 10-60min under 150-400 DEG C, nitrogen protection atmosphere, makes certainly
It is multiple to obtain self-lubricating bilayer after room temperature is cooling for lubricating composite solidification, self lubricating compound layer and metallic matrix plate strong bond
Condensation material.
5. the preparation method of self-lubricating double-layer composite material according to claim 4, it is characterised in that: made in S20 blind
Hole and S30 it is compound between, it is further comprising the steps of:
S21, production screw thread: producing screw thread in blind hole, and the screw thread is fine thread.
6. the preparation method of self-lubricating double-layer composite material according to claim 4, which is characterized in that made in S20 blind
Hole and S30 it is compound between, it is further comprising the steps of:
S22, corrosion blind hole: filling corrosive liquid in blind hole, the liquid level of corrosive liquid is lower than the height of blind hole, and corrosive liquid is to blind hole
Corroded.
7. a kind of self-lubricating double-layer gear pump side plate, it is characterised in that: use the self-lubricating two-layer compound of one of claim 1-3
Material, the external form of side plate are " 8 " font.
8. a kind of preparation method of self-lubricating double-layer gear pump side plate as claimed in claim 7, it is characterised in that: including following step
It is rapid:
S10, self-lubricating composite premix: selected polymeric matrix and additive are uniformly mixed；
S11, metallic matrix plate stamp: metallic matrix plate is gone out to the shape of side plate；
S20, production blind hole: blind hole is processed in the side of metallic matrix plate；
S21, production screw thread: producing screw thread in blind hole, and the screw thread is fine thread;
S22, corrosion blind hole: filling corrosive liquid in blind hole, the liquid level of corrosive liquid is lower than the height of blind hole, and corrosive liquid is to blind hole
Corroded；
It is S30, compound: self-lubricating composite premix is filled into blind hole and metallic matrix plate surface；
S40, solidification: the metallic matrix plate after will be compound solidifies 10-60min under 150-400 DEG C, nitrogen protection atmosphere, makes certainly
Lubricating composite solidification, self lubricating compound layer and metallic matrix plate strong bond obtain side plate blank after room temperature is cooling；
S50, side plate processing: the side plate blank of production is processed into side plate finished product.
9. a kind of self-lubricating bearing, it is characterised in that: use the self-lubricating double-layer composite material of one of claim 1-3, bearing
External form be hollow cylinder.
10. a kind of preparation method of self-lubricating bearing as claimed in claim 9, it is characterised in that: the following steps are included:
S10, self-lubricating composite premix: selected polymeric matrix and additive are uniformly mixed；
S20, production blind hole: blind hole is processed in the side of metallic matrix plate；
It is S30, compound: self-lubricating composite premix is filled into blind hole and metallic matrix plate surface；
S40, solidification: the metallic matrix plate after will be compound solidifies 10-60min under 150-400 DEG C, nitrogen protection atmosphere, makes certainly
Lubricating composite solidification, self lubricating compound layer and metallic matrix plate strong bond obtain self-lubricating plate material after room temperature is cooling；
S60, wrapped bearing bush: self-lubricating plate material is rolled into bearing blank；
S70, bearing machining: bearing blank is processed into bearing products.
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| CN110762123A (en) * | 2019-11-26 | 2020-02-07 | 合肥波林复合材料有限公司 | Three-layer composite self-lubricating material and preparation method thereof |
| CN111394156A (en) * | 2020-04-28 | 2020-07-10 | 北京稳力科技有限公司 | Alloy-fluororesin double-layer self-lubricating wear-resistant composite material, preparation method thereof and friction pair |
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|---|---|
| CN109177201B (en) | 2024-05-17 |
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