CN114043741A - Processing method of composite material for sliding bearing - Google Patents
Processing method of composite material for sliding bearing Download PDFInfo
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- CN114043741A CN114043741A CN202111363617.6A CN202111363617A CN114043741A CN 114043741 A CN114043741 A CN 114043741A CN 202111363617 A CN202111363617 A CN 202111363617A CN 114043741 A CN114043741 A CN 114043741A
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- 239000002131 composite material Substances 0.000 title claims abstract description 112
- 238000003672 processing method Methods 0.000 title abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 77
- 239000010959 steel Substances 0.000 claims abstract description 77
- 238000000034 method Methods 0.000 claims abstract description 33
- 239000008367 deionised water Substances 0.000 claims abstract description 6
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229920000642 polymer Polymers 0.000 claims description 47
- 239000000843 powder Substances 0.000 claims description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 8
- 239000004917 carbon fiber Substances 0.000 claims description 8
- 229910002804 graphite Inorganic materials 0.000 claims description 8
- 239000010439 graphite Substances 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- -1 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 238000000748 compression moulding Methods 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 239000001307 helium Substances 0.000 claims description 5
- 229910052734 helium Inorganic materials 0.000 claims description 5
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 239000011863 silicon-based powder Substances 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 9
- 239000007769 metal material Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 description 11
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- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Images
Classifications
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- 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
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
- B29C65/64—Joining a non-plastics element to a plastics element, e.g. by force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
- B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
-
- 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
- B29C66/02241—Cutting, e.g. by using waterjets, or sawing
-
- 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
- B29C66/024—Thermal pre-treatments
-
- 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
- B29L2031/00—Other particular articles
- B29L2031/04—Bearings
Abstract
The invention relates to the technical field of bearing processing, in particular to a processing method of a composite material for a sliding bearing, which comprises the following steps: after the metal is melted, a formed steel plate is prepared through a die, the steel plate is pretreated for later use, and deionized water is used for rinsing the surface of the steel plate; the processing method of the composite material for the sliding bearing provided by the invention has the advantages that through forming the composite material part blank and solidifying and forming the composite material part blank, the size error of the inner diameter of the bearing can be reduced, the cost of the sliding bearing product is reduced, the process is simple, the sliding bearing has the advantages of high structural strength, high precision and easiness in processing, and the problems that the existing composite material and a metal material have larger performance difference and unstable processing size, and the metal material density of the composite material is higher, so that the integral weight of the sliding bearing is larger, the requirement of light weight is not met, and the use performance of the sliding bearing is limited are solved, therefore, the composite material for the sliding bearing has a good application prospect.
Description
Technical Field
The invention relates to the technical field of bearing processing, in particular to a processing method of a composite material for a sliding bearing.
Background
A sliding bearing, a bearing operating under sliding friction, the sliding bearing operates smoothly, reliably and noiselessly, under the condition of liquid lubrication, the sliding surfaces are separated by lubricating oil without direct contact, the friction loss and the surface abrasion can be greatly reduced, an oil film also has certain shock absorption capacity but larger starting friction resistance, the part of a shaft supported by the bearing is called a shaft neck, a part matched with the shaft neck is called a bearing bush, a friction reducing material layer cast on the inner surface of the part to improve the friction property of the surface of the bearing bush is called a bearing bush, and the materials of the bearing bush and the bearing bush are collectively called sliding bearing materials.
Along with the development of industrial manufacturing, the requirement on the bearing is higher and higher, the bearing material is required to be environment-friendly and safe and does not contain harmful components, the bearing material has high strength, meanwhile, the bearing can adapt to different environments and working conditions, and has the capability of resisting stress corrosion and chemical corrosion.
Disclosure of Invention
The invention aims to provide a method for processing a composite material for a sliding bearing, which has the advantages of high structural strength, high precision and easiness in processing, and solves the problems that the existing composite material has larger performance difference with a metal material, the processing size is unstable, the metal material density of the composite material is higher, the whole weight of the sliding bearing is larger, the requirement of light weight is not met, and the use performance of the sliding bearing is limited.
In order to achieve the purpose, the invention provides the following technical scheme: a method for processing a composite material for a sliding bearing, the method comprising the steps of:
s1: after the metal is melted, a formed steel plate is prepared through a die, and the steel plate is pretreated for later use;
s2: rinsing the surface of the steel plate by using deionized water to keep the surface of the steel plate in a wet state, and then paving copper powder to obtain a composite steel plate;
s3: preparing a polymer composite material layer, and cutting the polymer composite material layer to enable the polymer composite material layer to be matched with a steel plate;
s4: then, paving a polymer composite material layer on the outer side of the composite steel plate to form a composite material sliding bearing blank, and carrying out stress relief treatment on the sliding bearing blank in a protective gas atmosphere;
s5: and (4) cooling the sliding bearing blank to room temperature after the sliding bearing blank is solidified, and performing finish rolling processing to obtain the composite sliding bearing.
Preferably, in the step S1, the steel plate is cleaned and polished during pretreatment of the steel plate, so as to remove an oxide layer on the surface of the steel plate.
Preferably, in step S2, the rubber roller is placed at one edge of the steel plate when the copper powder is laid, so that the rubber roller rolls from the edge of the steel plate to the edge of the other side at a constant speed, and a layer of dense and uniform copper powder is formed on the surface of the steel plate.
Preferably, in step S3, the polymer composite material layer includes Si powder, Mn powder, Cr powder, Ni powder, Fe powder, carbon fiber, polytetrafluoroethylene resin, and graphite, and is mixed uniformly to obtain a mixture.
Preferably, in step S3, the polymer composite material layer is prepared by compression molding, and the pressure is kept stable during the compression molding.
Preferably, in the step S3, the polymer composite layer is trimmed when the fine cutting process is performed.
Preferably, in step S4, the protective gas is any one of helium, argon, or nitrogen.
Preferably, in the step S4, the stress removal treatment is performed at a constant temperature of 180 to 220 ℃ for 60min, and then the cooling is performed at a cooling rate of 5 to 10 ℃/S.
Preferably, in the step S5, the temperature for solidifying the sliding bearing blank is 120 to 170 ℃ and the time is 10 to 30 min.
Preferably, in the step S5, the sliding bearing blank is subjected to surface grinding, deburring, and chamfering in finish rolling.
Compared with the prior art, the invention has the following beneficial effects:
the processing method of the composite material for the sliding bearing provided by the invention has the advantages that through forming the composite material part blank and solidifying and forming the composite material part blank, the size error of the inner diameter of the bearing can be reduced, the cost of the sliding bearing product is reduced, the process is simple, the sliding bearing has the advantages of high structural strength, high precision and easiness in processing, and the problems that the existing composite material and a metal material have larger performance difference and unstable processing size, and the metal material density of the composite material is higher, so that the integral weight of the sliding bearing is larger, the requirement of light weight is not met, and the use performance of the sliding bearing is limited are solved, therefore, the composite material for the sliding bearing has a good application prospect.
Drawings
FIG. 1 is a flow chart of the processing method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
a method for processing a composite material for a sliding bearing, the method comprising the steps of:
s1: after the metal is melted, a formed steel plate is prepared through a die, and the steel plate is pretreated for later use;
further, the steel plate is cleaned and polished during pretreatment of the steel plate, an oxide layer on the surface of the steel plate is removed, oxidation impurities can be effectively removed, the smoothness of the surface of the steel plate is increased, and the purpose of improving the production quality of the sliding bearing is achieved.
S2: rinsing the surface of the steel plate by using deionized water to keep the surface of the steel plate in a wet state, and then paving copper powder to obtain a composite steel plate;
furthermore, when copper powder is laid, the rubber roller is placed at the edge of one side of the steel plate, so that the rubber roller rolls to the edge of the other side from the edge of the steel plate at a constant speed, a layer of compact and uniform copper powder is formed on the surface of the steel plate, the copper powder can be distributed compactly and uniformly, and the product performance of the sliding bearing is improved.
S3: preparing a polymer composite material layer, and cutting the polymer composite material layer to enable the polymer composite material layer to be matched with a steel plate;
further, the polymer composite material layer comprises Si powder, Mn powder, Cr powder, Ni powder, Fe powder, carbon fiber, polytetrafluoroethylene resin and graphite, the mixture is obtained after uniform mixing, the polymer composite material layer contains 30% of carbon fiber, 5% of polytetrafluoroethylene resin and 10% of graphite, a compression molding mode is adopted during preparation of the polymer composite material layer, pressure stability is kept in the pressing process, the polymer composite material layer needs to be maintained to 70-100 ℃, the polymer composite material layer is taken out of a forming mold to ensure that the polymer composite material layer and a steel plate form a composite material sliding bearing blank, and when fine cutting machining is carried out, the surplus material of the polymer composite material layer is cut off, so that the problem of stability caused by overlarge size difference between the steel plate and the composite material is solved.
S4: then, paving a polymer composite material layer on the outer side of the composite steel plate to form a composite material sliding bearing blank, and carrying out stress relief treatment on the sliding bearing blank in a protective gas atmosphere;
furthermore, the protective gas is any one of helium, argon or nitrogen, so that the sliding bearing blank can be prevented from being damaged by external gas, the processing temperature during stress relief processing is 180 ℃, the temperature is kept constant for 60min, then cooling is carried out at the cooling speed of 5-10 ℃/s, residual stress generated in the material is removed, and the structural strength of the sliding bearing is improved.
S5: and (4) cooling the sliding bearing blank to room temperature after the sliding bearing blank is solidified, and performing finish rolling processing to obtain the composite sliding bearing.
Furthermore, the solidification temperature of the sliding bearing blank is 170 ℃, the time is 10min, and the sliding bearing blank is subjected to surface grinding, deburring and chamfering treatment during finish rolling processing, so that the product quality of the sliding bearing is effectively improved.
Example two:
a method for processing a composite material for a sliding bearing, the method comprising the steps of:
s1: after the metal is melted, a formed steel plate is prepared through a die, and the steel plate is pretreated for later use;
further, the steel plate is cleaned and polished during pretreatment of the steel plate, an oxide layer on the surface of the steel plate is removed, oxidation impurities can be effectively removed, the smoothness of the surface of the steel plate is increased, and the purpose of improving the production quality of the sliding bearing is achieved.
S2: rinsing the surface of the steel plate by using deionized water to keep the surface of the steel plate in a wet state, and then paving copper powder to obtain a composite steel plate;
furthermore, when copper powder is laid, the rubber roller is placed at the edge of one side of the steel plate, so that the rubber roller rolls to the edge of the other side from the edge of the steel plate at a constant speed, a layer of compact and uniform copper powder is formed on the surface of the steel plate, the copper powder can be distributed compactly and uniformly, and the product performance of the sliding bearing is improved.
S3: preparing a polymer composite material layer, and cutting the polymer composite material layer to enable the polymer composite material layer to be matched with a steel plate;
further, the polymer composite material layer comprises Si powder, Mn powder, Cr powder, Ni powder, Fe powder, carbon fiber, polytetrafluoroethylene resin and graphite, the mixture is obtained after uniform mixing, the polymer composite material layer contains 15% of carbon fiber, 10% of polytetrafluoroethylene resin and 15% of graphite, a compression molding mode is adopted during preparation of the polymer composite material layer, pressure stability is kept in the pressing process, the polymer composite material layer needs to be maintained at 70-100 ℃, the polymer composite material layer is taken out of a forming mold to ensure that the polymer composite material layer and a steel plate form a composite material sliding bearing blank, and when fine cutting machining is carried out, the surplus material of the polymer composite material layer is cut off, so that the problem of stability caused by overlarge size difference between the steel plate and the composite material is solved.
S4: then, paving a polymer composite material layer on the outer side of the composite steel plate to form a composite material sliding bearing blank, and carrying out stress relief treatment on the sliding bearing blank in a protective gas atmosphere;
furthermore, the protective gas is any one of helium, argon or nitrogen, so that the sliding bearing blank can be prevented from being damaged by external gas, the processing temperature in the stress relief processing is 200 ℃, the temperature is kept constant for 60min, then the sliding bearing blank is cooled at the cooling speed of 5-10 ℃/s, residual stress generated in the material is removed, and the structural strength of the sliding bearing is improved.
S5: and (4) cooling the sliding bearing blank to room temperature after the sliding bearing blank is solidified, and performing finish rolling processing to obtain the composite sliding bearing.
Furthermore, the solidification temperature of the sliding bearing blank is 150 ℃, the time is 20min, and the sliding bearing blank is subjected to surface grinding, deburring and chamfering treatment during finish rolling processing, so that the product quality of the sliding bearing is effectively improved.
Example three:
a method for processing a composite material for a sliding bearing, the method comprising the steps of:
s1: after the metal is melted, a formed steel plate is prepared through a die, and the steel plate is pretreated for later use;
further, the steel plate is cleaned and polished during pretreatment of the steel plate, an oxide layer on the surface of the steel plate is removed, oxidation impurities can be effectively removed, the smoothness of the surface of the steel plate is increased, and the purpose of improving the production quality of the sliding bearing is achieved.
S2: rinsing the surface of the steel plate by using deionized water to keep the surface of the steel plate in a wet state, and then paving copper powder to obtain a composite steel plate;
furthermore, when copper powder is laid, the rubber roller is placed at the edge of one side of the steel plate, so that the rubber roller rolls to the edge of the other side from the edge of the steel plate at a constant speed, a layer of compact and uniform copper powder is formed on the surface of the steel plate, the copper powder can be distributed compactly and uniformly, and the product performance of the sliding bearing is improved.
S3: preparing a polymer composite material layer, and cutting the polymer composite material layer to enable the polymer composite material layer to be matched with a steel plate;
further, the polymer composite material layer comprises Si powder, Mn powder, Cr powder, Ni powder, Fe powder, carbon fiber, polytetrafluoroethylene resin and graphite, the mixture is obtained after uniform mixing, the polymer composite material layer contains 20% of carbon fiber, 10% of polytetrafluoroethylene resin and 10% of graphite, a compression molding mode is adopted during preparation of the polymer composite material layer, pressure is kept stable in the pressing process, the polymer composite material layer needs to be kept at 70-100 ℃, the polymer composite material layer is taken out of a forming mold to ensure that the polymer composite material layer and a steel plate form a composite material sliding bearing blank, and when fine cutting machining is carried out, the surplus material of the polymer composite material layer is cut off, so that the problem of stability caused by overlarge size difference between the steel plate and the composite material is solved.
S4: then, paving a polymer composite material layer on the outer side of the composite steel plate to form a composite material sliding bearing blank, and carrying out stress relief treatment on the sliding bearing blank in a protective gas atmosphere;
furthermore, the protective gas is any one of helium, argon or nitrogen, so that the sliding bearing blank can be prevented from being damaged by external gas, the processing temperature during stress relief processing is 220 ℃, the temperature is kept constant for 60min, then cooling is carried out at the cooling speed of 5-10 ℃/s, residual stress generated in the material is removed, and the structural strength of the sliding bearing is improved.
S5: and (4) cooling the sliding bearing blank to room temperature after the sliding bearing blank is solidified, and performing finish rolling processing to obtain the composite sliding bearing.
Furthermore, the solidification temperature of the sliding bearing blank is 120 ℃, the time is 30min, and the sliding bearing blank is subjected to surface grinding, deburring and chamfering treatment during finish rolling processing, so that the product quality of the sliding bearing is effectively improved.
In conclusion, the processing method of the composite material for the sliding bearing can reduce the dimension error of the inner diameter of the bearing and reduce the cost of the sliding bearing product by forming the composite material part blank and solidifying and forming the composite material part blank, has simple process, ensures that the sliding bearing has the advantages of high structural strength, high precision and easy processing, and solves the problems that the existing composite material has larger performance difference with a metal material, unstable processing dimension and higher density of the metal material of the composite material, so that the whole weight of the sliding bearing is larger, the requirement of light weight is not met and the use performance of the sliding bearing is limited, therefore, the composite material for the sliding bearing has good application prospect.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A method for processing a composite material for a sliding bearing, characterized in that: the method comprises the following steps:
s1: after the metal is melted, a formed steel plate is prepared through a die, and the steel plate is pretreated for later use;
s2: rinsing the surface of the steel plate by using deionized water to keep the surface of the steel plate in a wet state, and then paving copper powder to obtain a composite steel plate;
s3: preparing a polymer composite material layer, and cutting the polymer composite material layer to enable the polymer composite material layer to be matched with a steel plate;
s4: then, paving a polymer composite material layer on the outer side of the composite steel plate to form a composite material sliding bearing blank, and carrying out stress relief treatment on the sliding bearing blank in a protective gas atmosphere;
s5: and (4) cooling the sliding bearing blank to room temperature after the sliding bearing blank is solidified, and performing finish rolling processing to obtain the composite sliding bearing.
2. The method of processing a composite material for a sliding bearing according to claim 1, wherein: in step S1, the steel plate is cleaned and polished during pretreatment of the steel plate to remove an oxide layer on the surface of the steel plate.
3. The method of processing a composite material for a sliding bearing according to claim 1, wherein: in step S2, when copper powder is to be laid, the rubber roller is placed on the edge of one side of the steel plate, and the rubber roller is made to roll from the edge of the steel plate to the edge of the other side at a constant speed, so that a layer of dense and uniform copper powder is formed on the surface of the steel plate.
4. The method of processing a composite material for a sliding bearing according to claim 1, wherein: in the step S3, the polymer composite material layer includes Si powder, Mn powder, Cr powder, Ni powder, Fe powder, carbon fiber, polytetrafluoroethylene resin, and graphite components, and is mixed uniformly to obtain a mixture.
5. The method of processing a composite material for a sliding bearing according to claim 1, wherein: in step S3, a compression molding method is used to prepare the polymer composite layer, and the pressure is kept stable during the compression process.
6. The method of processing a composite material for a sliding bearing according to claim 1, wherein: in step S3, the polymer composite material layer is trimmed off during the fine cutting process.
7. The method of processing a composite material for a sliding bearing according to claim 1, wherein: in step S4, the protective gas is any one of helium, argon, or nitrogen.
8. The method of processing a composite material for a sliding bearing according to claim 1, wherein: in the step S4, the processing temperature during the stress relief processing is 180-220 ℃, the temperature is kept constant for 60min, and then the cooling is carried out at the cooling speed of 5-10 ℃/S.
9. The method of processing a composite material for a sliding bearing according to claim 1, wherein: in the step S5, the temperature for curing the sliding bearing blank is 120-170 ℃ and the time is 10-30 min.
10. The method of processing a composite material for a sliding bearing according to claim 1, wherein: in step S5, the sliding bearing blank is subjected to surface grinding, deburring, and chamfering during finish rolling.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111363617.6A CN114043741A (en) | 2021-11-17 | 2021-11-17 | Processing method of composite material for sliding bearing |
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| CN202111363617.6A CN114043741A (en) | 2021-11-17 | 2021-11-17 | Processing method of composite material for sliding bearing |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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