CN110434345A - A kind of cladding sintered self-lubricated bearing and preparation method thereof - Google Patents
A kind of cladding sintered self-lubricated bearing and preparation method thereof Download PDFInfo
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- CN110434345A CN110434345A CN201910807597.3A CN201910807597A CN110434345A CN 110434345 A CN110434345 A CN 110434345A CN 201910807597 A CN201910807597 A CN 201910807597A CN 110434345 A CN110434345 A CN 110434345A
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- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/105—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing inorganic lubricating or binding agents, e.g. metal salts
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- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
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- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
-
- 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
- B22F7/06—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 workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—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 workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1095—Construction relative to lubrication with solids as lubricant, e.g. dry coatings, powder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
- F16C33/121—Use of special materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
- F16C33/128—Porous bearings, e.g. bushes of sintered alloy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/14—Special methods of manufacture; Running-in
- F16C33/145—Special methods of manufacture; Running-in of sintered porous bearings
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Inorganic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
A kind of cladding sintered self-lubricated bearing, includes steel bushing, and the steel bushing is cylindrical；Lubricant layer is provided in the steel bushing；A kind of cladding sintered self-lubricated bearing includes steel plate, and lubricant layer is provided on the steel plate, and the lubricant layer bonding forms slide type bearing on a surface of a steel sheet；By rational proportion, the Cu-Ni-Fe alloy formed in porous sintering alloy lubricating layer helps to improve the intensity, toughness and wearability of porous sintering alloy lubricating layer surface.
Description
Technical field
The present invention relates to self-lubricating bearing axis shell type bearing and slide type technical field of bearings, especially a kind of cladding is burnt
Tie self-lubricating bearing and preparation method thereof.
Background technique
The position for rotating, sliding is needed in many mechanisms, and bearing usually can be all set, with the rotation of auxiliary body, cunning
It is dynamic more smooth, while mechanism can be limited, have the function of bearing, only bearing can be generated after long-play and be rubbed
Wipe, fever the phenomenon that, need to fill lubricating oil or lubricating fluid carry out lubrication assistant, for bearing operate it is smooth, and avoid bearing rotary,
Sliding fever, so bearing wants energy normal operation, it is necessary to which the medium for being provided with lubrication exists, and is generally commonly used
Lubricant medium such as: water or lubricating oil, and need in bearing use process often outer plus supplement, it is not only fairly cumbersome also to make
At staff's inconvenience；
Occurs a kind of self-lubricating bearing currently on the market, self-lubricating bearing in the process of running, no longer needs to provide lubrication
Medium solves above-mentioned plain bearing and needs frequent additional supplemental lubrication agent in use, but it still exists obviously
Not foot point, wherein being the most significantly exactly the cladding sintering plate that existing self-lubricating bearing uses, the substrate of the material is
Steel plate, surface first have to one layer of layers of copper of plating, this can cause certain pollution to environment, then in one layer of copper plated steel upper berth gold
Belong to powder and solid lubricant mixed powder, enter back into meshbeltfurnace sintering, out after certain thickness is rolled on milling train, or in press
On be pressed onto certain thickness, such panel length can extend.If being rolled into cylindrical shape again, and it will increase the compressing force of alloy-layer,
The bond strength of extreme influence alloy-layer and steel plate makes comparison is light to consolidate and mix loose powder inevitably has micro-vibration in meshbeltfurnace
Body lubricant is easy to float to surface, causes material uneven, reduces self-lubricating effect, thus manufactured by the above method
The bearing capacity of self-lubricating bearing is poor, and wear-resisting property is not high, therefore needs to redesign that a kind of bearing capacity is high, wearability is strong and rubs
Wipe the small cladding sintered self-lubricated bearing and preparation method thereof of coefficient.
The present invention be exactly in order to solve problem above and carry out improvement.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of high-mechanic, high abrasion and coefficient of friction it is small cladding sintering
Self-lubricating bearing and preparation method thereof.
The present invention is that technical solution used by solving its technical problem is:
A kind of cladding sintered self-lubricated bearing, includes steel bushing, and the steel bushing is cylindrical；Lubrication is provided in the steel bushing
Layer；
The steel bushing combines to form axle sleeve type bearing with the lubricant layer in it；
The lubricant layer is porous sintering alloy lubricating layer, and the porous sintering alloy lubricating layer is by metal powder and solid
Lubricant base composition；
The porous sintering alloy lubricating layer is located in the inner hole surface of steel bushing；
The cylindrical shape of the steel bushing is straight cylindrical or flanging cylinder shape；
A kind of cladding sintered self-lubricated bearing includes steel plate, and lubricant layer is provided on the steel plate, and the described lubricant layer is viscous
Knot forms slide type bearing on a surface of a steel sheet；
Oilhole and counterbore are provided on the slide type bearing；
The lubricant layer is porous sintering alloy lubricating layer, and the porous sintering alloy lubricating layer is by metal powder and micro
Element S, P, Si and solid lubricant base composition；
The porous sintering alloy lubricating layer is located on the surface of steel plate；
The steel plate is in flat, T-shape formula, " V " pattern, ramp type；
The alloy lubricating layer is made of Ni, Fe, Cu metal powder and microelement S, P, Si and solid lubricant；
The solid lubricant includes graphite, molybdenum disulphide powder, boron nitride, and graphite is flake graphite；
The slide type bearing generally also appellation slide plate, sliding block, guide plate, wearing plate；
Further, the implementation steps of described this method are as follows:
Ni, Fe, Cu metal powder and microelement S, P, Si and solid lubricant powder are carried out ratio by S1, formulation ratio
Proportion；
Powder after step S1 proportion is stirred with mixing plant, keeps its full and uniform by S2, stirring, powder stirring
Time be 1 hour；
S3, green compact processed produce green compact with green compact device；
S4, bonding, green compact and steel are fixed with quick gluing knot, very close to each other between green compact；
Sub-assembly after bonding in step S4 is put into sintering furnace and is sintered by S5, hot pressed sintering, with pressure on sub-assembly
The pressurization of power device；
Wherein, the ratio that each element matches in the step S1 are as follows:
Cu is 50%-70%, Ni 15%-25%, Fe 10%-20%, solid lubricant 5%-10% and micro
Element 2%-6%
Pressure apparatus is one of hydraulic press, injector, flattener equipment in the step S3；
Specifically, green compact are regular shape in the step S3, which is cylindrical body, cuboid, rhombogen or ladder
Body；
The furnace of hot pressed sintering is vacuum drying oven or gas shield batch-type furnace or meshbeltfurnace in the step S5；
Sintering furnace has pressure apparatus in the step S5, and the pressure of pressure apparatus is 0.1-1Mpa.
It first has to determine Ni, Fe, Cu and microelement S, P, Si and solid lubricant powder as main powder by researching and developing
End carries out proportioning test；Reach high-mechanic, high abrasion porous sintering self-lubricating bearing；
Then by the way that mixed metal powder and solid lubricant are suppressed green compact, reach higher density, avoid meshbeltfurnace
Sintering loose powder causes the non-uniform status of solid lubricant；
By hot pressing, green compact and steel are combined closely, and the metallic atom on surface is easier to be sintered diffusion, to reach very high
Bond strength, such steel plate just do not have to copper facing, can be reduced environmental pollution；
Quick glue is 502 glue or similar glue in the step S4.
The present invention has the advantages that the Cu-Ni-Fe formed in porous sintering alloy lubricating layer is closed by rational proportion
Gold helps to improve the intensity, toughness and wearability of porous sintering alloy lubricating layer surface；Microelement S, P, Si and Ni
The moist excellent alloy of Element generation, complements each other between Cu-Ni-Fe alloy and matrix basal plane, so that Cu-Ni-Fe alloy
Firmly be integrally bonded with matrix basal plane, there is high-mechanic, the performance of high abrasion, this preparation method be mixed metal powder and
Solid lubricant suppresses green compact, reaches higher density, is then bonded on steel bushing inner hole and on steel plate surface, passes through hot pressing, raw
Base and steel are combined closely, and the metallic atom on surface is easier to be sintered diffusion, thus reach very high bond strength, such steel plate
Just do not have to copper facing, can be reduced environmental pollution；Meshbeltfurnace sintering loose powder is avoided to cause solid lubricant unevenly and also to roll
Extend the status for causing bond strength inadequate.
Detailed description of the invention
Fig. 1 is that a kind of structure of the embodiment one of cladding sintered self-lubricated bearing axis shell type bearing proposed by the present invention is shown
It is intended to.
Fig. 2 is the vertical view subdivision graph of Fig. 1.
Fig. 3 is that a kind of structure of the embodiment two of cladding sintered self-lubricated bearing axis shell type bearing proposed by the present invention is shown
It is intended to.
Fig. 4 is a kind of vertical view subdivision graph of Fig. 3.
Fig. 5 is that the another of Fig. 3 overlooks subdivision graph.
Fig. 6 is that a kind of structure of the embodiment one of cladding sintered self-lubricated bearing middle slide plate formula bearing proposed by the present invention is shown
It is intended to.
Fig. 7 is the top view of Fig. 6.
Fig. 8 is that a kind of structure of the embodiment two of cladding sintered self-lubricated bearing middle slide plate formula bearing proposed by the present invention is shown
It is intended to.
Fig. 9 is the top view of Fig. 8.
Figure 10 is a kind of structural schematic diagram of cladding sintered self-lubricated bearing middle slide plate formula embodiment three proposed by the present invention.
Figure 11 is the top view of Figure 10.
Figure 12 is a kind of structure of the example IV of cladding sintered self-lubricated bearing middle slide plate formula bearing proposed by the present invention
Schematic diagram.
Figure 13 is the top view of Figure 12.
Figure 14 is a kind of structure of the embodiment five of cladding sintered self-lubricated bearing middle slide plate formula bearing proposed by the present invention
Schematic diagram.
Figure 15 is the top view of Figure 14.
Figure 16 is a kind of flow chart of the preparation method of cladding sintered self-lubricated bearing proposed by the present invention.
Figure 17 is the bonding process figure of lubricant layer and steel plate in Figure 16.
Figure 18 is the bonding process figure of lubricant layer and steel bushing in Figure 16.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Diagram and specific embodiment are closed, the present invention is further explained.
Referring to figs. 1 to shown in Figure 18, which includes steel bushing 1, and the steel bushing 1 is in cylinder
Shape；Lubricant layer 3 is provided in the steel bushing 1；
The steel bushing 1 combines to form axle sleeve type bearing with the lubricant layer 3 in it；
The lubricant layer 3 is porous sintering alloy lubricating layer, and the porous sintering alloy lubricating layer is by metal powder and admittedly
Body lubricant base composition；
The porous sintering alloy lubricating layer is located in the inner hole surface of steel bushing 1；
The cylindrical shape of the steel bushing 1 is straight cylindrical or flanging cylinder shape；
A kind of cladding sintered self-lubricated bearing includes steel plate 2, is provided with lubricant layer 3, the described lubrication on the steel plate 2
Layer 3 is bonded in formation slide type bearing on the surface of steel plate 2；
Oilhole and counterbore are provided on the slide type bearing；
The lubricant layer 3 is porous sintering alloy lubricating layer, and the porous sintering alloy lubricating layer is by metal powder and admittedly
Body lubricant base composition；
The porous sintering alloy lubricating layer is located on the surface of steel plate 2；
The steel plate 2 is in flat, T-shape formula, " V " pattern, ramp type；
The alloy lubricating layer is made of Ni, Fe, Cu and microelement S, P, Si and solid lubricant；
The solid lubricant includes graphite, molybdenum disulphide powder, boron nitride, and graphite is flake graphite；
The slide type bearing generally also appellation slide plate, sliding block, guide plate, wearing plate；
Further, the implementation steps of described this method are as follows:
Ni, Fe, Cu and microelement S, P, Si and solid lubricant powder are carried out proportions by S1, formulation ratio；
Powder after step S1 proportion is stirred with mixing plant, keeps its full and uniform by S2, stirring, powder stirring
Time be 1 hour；
S3, green compact processed produce green compact with green compact device；
S4, bonding, green compact and steel are fixed with quick gluing knot, very close to each other between green compact；
Sub-assembly after bonding in step S4 is put into sintering furnace and is sintered by S5, hot pressed sintering, with pressure on sub-assembly
The pressurization of power device；
Wherein, the ratio that each element matches in the step S1 are as follows:
Cu is 50%-70%, Ni 15%-25%, Fe 10%-20%, solid lubricant 5%-10% and micro
Element 2%-6%
Pressure apparatus is one of hydraulic press, injector, flattener equipment in the step S3；
Specifically, green compact are regular shape in the step S3, which is cylindrical body, cuboid, rhombogen or ladder
Body；
Quick glue is 502 glue or similar glue in the step S4.
The furnace of hot pressed sintering is vacuum drying oven or gas shield batch-type furnace or meshbeltfurnace in the step S5；
Sintering furnace has pressure apparatus in the step S5, and the pressure of pressure apparatus is 0.1-1Mpa.
It first has to determine Ni, Fe, Cu and microelement S, P, Si and solid lubricant powder as main powder by researching and developing
End carries out proportioning test；Reach high-mechanic, high abrasion porous sintering self-lubricating bearing；
Then by the way that mixed metal powder and solid lubricant are suppressed green compact, reach higher density, avoid meshbeltfurnace
Sintering loose powder causes the non-uniform status of solid lubricant；
By hot pressing, green compact and steel are combined closely, and the metallic atom on surface is easier to be sintered diffusion, to reach very high
Bond strength, such steel plate just do not have to copper facing, can be reduced environmental pollution；
By rational proportion, the Cu-Ni-Fe alloy formed in porous sintering alloy lubricating layer helps to improve Porous
The intensity, toughness and wearability of sintered alloy lubricant layer surface；Microelement S, P, Si and Ni Element generation is moist excellent
Alloy complements each other between Cu-Ni-Fe alloy and matrix basal plane, so that Cu-Ni-Fe alloy firmly connects with matrix basal plane
Integrator has high-mechanic, the performance of high abrasion.This preparation method is metal powder and solid lubricant mixing compacting life
Base, reaches higher density, is then bonded on steel bushing inner hole on steel plate surface, and by hot pressing, green compact and steel are combined closely,
The metallic atom on surface is easier to be sintered diffusion, to reach very high bond strength, such steel plate does not just have to copper facing, can be reduced
Environmental pollution；And avoid meshbeltfurnace sintering loose powder cause solid lubricant unevenly and also to roll extension cause to combine it is strong
Spend inadequate status.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent defines.
Claims (10)
1. a kind of cladding sintered self-lubricated bearing includes steel bushing (1), it is characterised in that:
The steel bushing (1) is cylindrical；Lubricant layer (3) are provided in the steel bushing (1)；
The steel bushing (1) combines to form axle sleeve type bearing with the lubricant layer (3) in it；
The lubricant layer (3) is porous sintering alloy lubricating layer, and the porous sintering alloy lubricating layer is by metal powder and solid
Lubricant base composition；
The porous sintering alloy lubricating layer is located in the inner hole surface of steel bushing (1)；
The cylindrical shape of the steel bushing (1) is straight cylindrical or flanging cylinder shape.
2. a kind of cladding sintered self-lubricated bearing includes steel plate (2), which is characterized in that be provided with lubricant layer on the steel plate (2)
(3), the described lubricant layer (3) is bonded in formation slide type bearing on the surface of steel plate (2)；
Oilhole and counterbore are provided on the slide type bearing；
The lubricant layer (3) is porous sintering alloy lubricating layer, and the porous sintering alloy lubricating layer is by metal powder and micro
Element S, P, Si and solid lubricant base composition；
The porous sintering alloy lubricating layer is located on the surface of steel plate (2).
3. a kind of cladding sintered self-lubricated bearing as claimed in claim 2, which is characterized in that the steel plate (2) in it is flat,
T-shape formula, " V " pattern, ramp type.
4. a kind of cladding sintered self-lubricated bearing as claimed in claim 1 or 2, which is characterized in that the alloy lubricating layer by
Cu, Ni, Fe metal powder and microelement S, P, Si and solid lubricant composition；
The solid lubricant includes graphite, molybdenum disulphide powder, boron nitride, and graphite is flake graphite.
5. a kind of preparation method for manufacturing cladding sintered self-lubricated bearing according to claim 1, which is characterized in that described
The implementation steps of this method are as follows:
S1, formulation ratio will carry out ratio by Cu, Ni, Fe metal powder and microelement S, P, Si and solid lubricant powder and match
Than；
S2, stirring, by step S1 proportion after powder be stirred with mixing plant, keep its full and uniform, powder stirring when
Between be 1 hour；
S3, green compact processed produce green compact with green compact device；
S4, bonding, green compact and steel are fixed with quick gluing knot, very close to each other between green compact；
Sub-assembly after bonding in step S4 is put into sintering furnace and is sintered, filled on sub-assembly with pressure by S5, hot pressed sintering
Set pressurization.
6. a kind of preparation method of cladding sintered self-lubricated bearing as claimed in claim 5, which is characterized in that the step S1
The ratio of middle each element proportion are as follows: Cu 50%-70%, Ni 15%-25%, Fe 10%-20%, solid lubricant are
5%-10% and microelement 2%-6%.
7. a kind of preparation method of cladding sintered self-lubricated bearing as claimed in claim 5, which is characterized in that the step S3
Middle pressure apparatus is one of hydraulic press, injector, flattener equipment.
8. a kind of preparation method of cladding sintered self-lubricated bearing as claimed in claim 5, which is characterized in that the step S3
Middle green compact are regular shape, which is cylindrical body, cuboid, rhombogen or prismatoid.
9. a kind of preparation method of cladding sintered self-lubricated bearing as claimed in claim 5, which is characterized in that the step S5
The furnace of middle hot pressed sintering is vacuum drying oven or gas shield batch-type furnace or meshbeltfurnace.
10. a kind of preparation method of cladding sintered self-lubricated bearing as claimed in claim 4, which is characterized in that the step
Sintering furnace in S5 has pressure apparatus, and the pressure of pressure apparatus is 0.1-1MPa.
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| CN2019106892058 | 2019-07-29 | ||
| CN201910689205 | 2019-07-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116352074A (en) * | 2023-04-12 | 2023-06-30 | 徐州徐工基础工程机械有限公司 | Driving sleeve with double-layer composite structure and preparation method thereof |
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| CN116352074B (en) * | 2023-04-12 | 2023-12-15 | 徐州徐工基础工程机械有限公司 | Driving sleeve with double-layer composite structure and preparation method thereof |
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Address after: 314100 No. 668, Chengqiao Road, Chengqiao community, Weitang street, Jiashan County, Jiaxing City, Zhejiang Province Applicant after: Zhejiang DeNO intelligent accessories Technology Co.,Ltd. Address before: 314100 No. 668, Chengqiao Road, Chengqiao community, Weitang street, Jiashan County, Jiaxing City, Zhejiang Province Applicant before: JIASHAN DERNORE BEARING CO.,LTD. |
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Application publication date: 20191112 |