CN106751421A - Macromolecule self-lubricating material and preparation method thereof, the leaf spring grasswort bushing being made up of the macromolecule self-lubricating material - Google Patents
Macromolecule self-lubricating material and preparation method thereof, the leaf spring grasswort bushing being made up of the macromolecule self-lubricating material Download PDFInfo
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- CN106751421A CN106751421A CN201611147683.9A CN201611147683A CN106751421A CN 106751421 A CN106751421 A CN 106751421A CN 201611147683 A CN201611147683 A CN 201611147683A CN 106751421 A CN106751421 A CN 106751421A
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- lubricating material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L59/00—Compositions of polyacetals; Compositions of derivatives of polyacetals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
- B60G11/10—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
- B60G11/12—Links, pins, or bushes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Sliding-Contact Bearings (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of macromolecule self-lubricating material and preparation method thereof, the macromolecule self-lubricating material includes following components by weight：100 parts of acetal resins, 5 30 parts of aramid fibers, 3 20 parts of anti-wear agents, 5 12 parts of toughener, 0.1 2.0 parts of antioxidant and 0.1 2.0 parts of stabilizers.The macromolecule self-lubricating material mechanical performance is excellent, anti-wear performance outstanding, excellent size stability.The invention also discloses a kind of leaf spring grasswort bushing, obtained by injection moulding by above-mentioned macromolecule self-lubricating material.The leaf spring grasswort bush structure is simple, light weight, non-maintaining, wear-resistant.
Description
Technical field
The present invention relates to composite and technical field of automobile parts, and in particular to a kind of macromolecule self-lubricating material and
Its preparation method, the leaf spring grasswort bushing being made up of the macromolecule self-lubricating material.
Background technology
With continuing to develop for commercial car technology, domestic increasingly stricter using standard requirement to commercial car, client is to business
The ride comfort and control stability run with car vehicle require also more and more higher.Commercial car plate spring suspension brackets are no longer simply focused on
The load of vehicle, plate spring suspension system part is also evolving, and lightweight, low-maintenance cost, corrosion resistant are its parts
Development trend.
The leaf spring grasswort bushing of commercial car is arranged in the grasswort of leaf spring, and leaf spring pin is arranged on leaf spring grasswort bushing
In.The effect of leaf spring grasswort bushing is the impact for buffering leaf spring to leaf spring pin, and decay leaf spring passes to the vibration of leaf spring pin, to carry
The ride comfort of vehicle traveling high.At present, leaf spring grasswort bushing mainly has based on two kinds of bimetallic material axle sleeve and rubber axle sleeve.
The development of self-lubricating bushing technology is breached by the limitation of grease lubrication, realizes oil-free or few glossy
It is sliding, therefore become the focus of tribological field.Self-lubricating bushing is broadly divided into Metal Substrate, polymer-based and metal high score
Sub- composite base three types, due to macromolecular material have light weight, it is low to steel coefficient of friction, mating plate, corrosion resistant can be protected
The advantages of erosion, therefore more and more applied.
Used as auto parts and components, current leaf spring bushing can substantially be divided three classes：One kind is metal lining structure, one
As use powder metallurgy lining or bimetal liner structure, this kind of bush structure is complicated, and maintenance trouble is, it is necessary to frequent addition profit
Lubricating oil, and it is relatively costly；One kind be rubber bushing, this kind of bushing in the form of internal lining pipe and outer tube vulcanized rubber, in work
During work, rubber part bears the torsional deflection of internal lining pipe and rubber parts, influences its service life；Another is rubber
The compound bushing of plastics, structure is that outer layer is that rubber part internal layer is parts of plastics, most of to use polyurethane or nylon material
Matter, this simple structure, and whole suspension system rigidity is not influenceed, but bush structure is complicated, increased vehicle non-standard
The use of part.
The content of the invention
The technical problems to be solved by the invention are to overcome the shortcomings of to be mentioned and defect in background above technology, there is provided one
Kind of excellent in mechanical performance, anti-wear performance are outstanding, the macromolecule self-lubricating material of excellent size stability and preparation method thereof and
Light weight, the anti abrasive leaf spring grasswort bushing being made up of the macromolecule self-lubricating material.
In order to solve the above technical problems, technical scheme proposed by the present invention is：
A kind of macromolecule self-lubricating material, by weight including following components：100 parts of acetal resin, aramid fiber
5-30 parts, anti-wear agent 3-20 parts, toughener 5-12 parts, antioxidant 0.1-2.0 parts, stabilizer 0.1-2.0 parts.The high molecular self-lubricating
Sliding material is using acetal resin as matrix material, and acetal resin is engineering plastics, itself has certain wearability, resistance to
Warm nature can be outstanding, and water absorption rate is low, it is ensured that the dimensional stability of product.Aramid fiber is added in acetal resin matrix material
Fiber can improve the modulus and wearability of material.Addition anti-wear agent can reduce the coefficient of friction of material, reduce abrasion, have material
There is self-lubricating feature, further improve the wearability of material.Addition toughener can improve the mechanical property of material.Addition antioxidant
With the ageing resistace that stabilizer is greatly improved material.Using said components and composition and ratio, the macromolecule self-lubricating material
Excellent in mechanical performance, anti-wear performance are outstanding, excellent size stability.
As the further improvement to above-mentioned technical proposal：
Preferably, the macromolecule self-lubricating material includes following components by weight：100 parts of acetal resin, virtue
18-22 parts, anti-wear agent 4-6 parts, toughener 5-6 parts, antioxidant 0.15-0.25 parts, stabilizer 0.15-0.25 parts of synthetic fibre fiber.Adopt
The anti-wear performance of the macromolecule self-lubricating material constituted with said ratio more outstanding, dimensional stability is also more preferable.
Preferably, the aramid fiber is one or more in aramid fiber long fibre, aramid fiber short fibre and aramid fiber powder.
Preferably, the anti-wear agent is one or more in polytetrafluoroethylene (PTFE), graphite and molybdenum bisuphide.
Preferably, the toughener is thermoplastic polyurethane, ethylene propylene diene rubber, nitrile rubber and ethylene-octene copolymerization
One or more in thing.
Used as a total technology design, another aspect of the present invention provides a kind of system of above-mentioned macromolecule self-lubricating material
Preparation Method, comprises the following steps：
(1) by acetal resin be placed in baking oven dry, then take by weight 100 parts of dried acetal resins with
And accordingly the anti-wear agent of weight portion, toughener, antioxidant and stabilizer are placed in and batch mixing are carried out in high speed mixer；
(2) material after the completion of step (1) batch mixing is added in double screw extruder, phase is added by side feeding manner
The aramid fiber of weight portion is answered, melt blending is then carried out, finally by extruding pelletization, that is, macromolecule self-lubricating material is obtained.
Above-mentioned preparation method, it is preferred that in step (1), the dry temperature is 80 DEG C -100 DEG C, dry time
It is 3-6h；The time of the batch mixing is 5-15min.
Above-mentioned preparation method, it is preferred that in step (2), the extrusion temperature of the extruding pelletization is 170 DEG C -200 DEG C,
The screw speed of the double screw extruder is 100-350rpm.
Used as a total technology design, another aspect of the present invention additionally provides a kind of leaf spring grasswort bushing, leaf spring volume
The macromolecule self-lubricating material that ear bushing is prepared by above-mentioned macromolecule self-lubricating material or by above-mentioned preparation method
Obtained by injection moulding.Due to using above-mentioned macromolecule self-lubricating material, the leaf spring grasswort bushing is compared to existing gold
Category bushing, rubber bushing and rubber plastic composite bush have light weight, non-maintaining, anti abrasive advantage, meet current automobile
Lightweight, the requirement of low power consuming.
Above-mentioned leaf spring grasswort bushing, it is preferred that the injection-moulding step is specific as follows：By the macromolecule self-lubricating
Material is placed in baking oven in 3-6h is dried at 80 DEG C -100 DEG C, then by the barrel of macromolecule self-lubricating material addition injection machine
Injection moulding is carried out, leaf spring grasswort bushing is obtained final product, at 170 DEG C -200 DEG C, injection is pressed for injection temperature control in injection molding process
Power control is in 40-120MPa, 30%-80% of the injection moulding speed control in injection machine maximum injection moulding speed.
Compared with prior art, the advantage of the invention is that：It is base that the macromolecule self-lubricating material uses acetal resin
Body material, and aramid fiber, anti-wear agent, toughener, antioxidant and stabilizer are added in matrix material.Acetal resin is in itself
With certain wearability, heat resistance is outstanding, and water absorption rate is low.Aramid fiber can improve the modulus and wearability of material,
Anti-wear agent can reduce the coefficient of friction of material, reduce abrasion, material is had self lubricity, and further improve the resistance to of material
Mill property.The macromolecule self-lubricating material mechanical performance is excellent, anti-wear performance outstanding, excellent size stability.Using the macromolecule
Leaf spring grasswort bushing light weight that self-lubricating material is made, abrasion resistance properties are good, meet the requirement of automotive light weight technology, low power consuming.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the structural representation of leaf spring grasswort bushing of the present invention.
Specific embodiment
For the ease of understanding the present invention, more complete is made to the present invention below in conjunction with Figure of description and preferred embodiment
Face, meticulously describe, but protection scope of the present invention is not limited to embodiment in detail below.
Unless otherwise defined, the implication that all technical terms used hereinafter are generally understood that with those skilled in the art
It is identical.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to the limitation present invention
Protection domain.
Unless otherwise specified, various raw material, reagent, instrument and equipment used in the present invention etc. can be by city
Field is commercially available or can be prepared by existing method.
Embodiment 1：
Macromolecule self-lubricating material of the present invention and preparation method thereof, the leaf spring grasswort being made up of the macromolecule self-lubricating material
A kind of embodiment of bushing, the macromolecule self-lubricating material includes following components by weight：100 parts of acetal resins, 5 parts
Aramid fiber long fibre, 3 parts of polytetrafluoroethylene (PTFE) (PTFE, anti-wear agent), 7 parts of thermoplastic polyurethanes (TPU, toughener), 0.1 part of antioxidant
With 0.1 part of stabilizer.
The macromolecule self-lubricating material is prepared by following methods：
(1) acetal resin is placed in baking oven in 3h is dried at 100 DEG C, then takes the dried polyformaldehyde trees of 100kg
Fat, 3kg polytetrafluoroethylene (PTFE), 7kg thermoplastic polyurethanes, 0.1kg antioxidant and 0.1kg stabilizers are placed in high speed mixer and carry out
Batch mixing 15min；
(2) material after the completion of step (1) batch mixing is added in double screw extruder, is added by side feeding manner
5kg aramid fiber long fibres, then carry out melt blending, finally by extruding pelletization, that is, obtain macromolecule self-lubricating material, wherein squeezing
It is 200 DEG C to go out temperature, and the screw speed of double screw extruder is 350rpm.
Tensile strength, density, coefficient of friction, abrasion and water absorption rate to the macromolecule self-lubricating material are tested.Its
In, the method for testing of tensile strength is carried out using testing standard GB/T1040, and coefficient of friction and abrasion are using ASTM G99-05 sides
Method is tested, and water absorption rate (embodying the dimensional stability of material) is carried out using testing standard GB/T1034.Specific test result is shown in Table
1。
With the macromolecule self-lubricating material as raw material, leaf spring grasswort bushing is prepared by injection moulding.Injection moulding
Concretely comprise the following steps：Macromolecule self-lubricating material is placed in baking oven in 3h is dried at 100 DEG C, then by macromolecule self-lubricating material
Injection moulding is carried out in the barrel of material addition injection machine, injection temperature is 200 DEG C in injection molding process, and injection pressure is
40MPa, injection moulding speed is the 30% of injection machine maximum injection moulding speed.The structure of the leaf spring grasswort bushing is as shown in Figure 1.
Embodiment 2：
Macromolecule self-lubricating material of the present invention and preparation method thereof, the leaf spring grasswort being made up of the macromolecule self-lubricating material
A kind of embodiment of bushing, the macromolecule self-lubricating material includes following components by weight：100 parts of acetal resins, 30
Part aramid fiber long fibre, 10 parts of polytetrafluoroethylene (PTFE), 10 parts of molybdenum bisuphide, 12 parts of ethylene-octene copolymers, 2.0 parts of antioxidant and 2.0
Part stabilizer.
The macromolecule self-lubricating material is prepared by following methods：
(1) acetal resin is placed in baking oven in 6h is dried at 80 DEG C, then takes the dried polyformaldehyde trees of 100kg
Fat, 10kg polytetrafluoroethylene (PTFE), 10kg molybdenum bisuphide, 12kg ethylene-octene copolymers, 2.0kg antioxidant and 2.0kg stabilizers are put
Batch mixing 10min is carried out in high speed mixer；
(2) material after the completion of step (1) batch mixing is added in double screw extruder, is added by side feeding manner
30kg aramid fiber long fibres, then carry out melt blending, finally by extruding pelletization, that is, obtain macromolecule self-lubricating material, wherein
Extrusion temperature is 170 DEG C, and the screw speed of double screw extruder is 250rpm.
Tensile strength, density, coefficient of friction, abrasion and water absorption rate to the macromolecule self-lubricating material are tested.Its
In, the method for testing of tensile strength is carried out using testing standard GB/T1040, and coefficient of friction and abrasion are using ASTM G99-05 sides
Method is tested, and water absorption rate is carried out using testing standard GB/T1034.Specific test result is shown in Table 1.
With the macromolecule self-lubricating material as raw material, leaf spring grasswort bushing is prepared by injection moulding.Injection moulding
Concretely comprise the following steps：Macromolecule self-lubricating material is placed in baking oven in 6h is dried at 80 DEG C, then by macromolecule self-lubricating material
Injection moulding is carried out in the barrel of material addition injection machine, injection temperature is 200 DEG C in injection molding process, and injection pressure is
80MPa, injection moulding speed is the 60% of injection machine maximum injection moulding speed.The structure of the leaf spring grasswort bushing is as shown in Figure 1.
Embodiment 3：
Macromolecule self-lubricating material of the present invention and preparation method thereof, the leaf spring grasswort being made up of the macromolecule self-lubricating material
A kind of embodiment of bushing, the macromolecule self-lubricating material includes following components by weight：100 parts of acetal resins, 15
Part aramid fiber powder, 6 parts of polytetrafluoroethylene (PTFE), 5 parts of graphite, 8 parts of thermoplastic polyurethanes, 1 part of antioxidant and 1 part of stabilizer.
The macromolecule self-lubricating material is prepared by following methods：
(1) acetal resin is placed in baking oven in 5h is dried at 90 DEG C, then takes the dried polyformaldehyde trees of 100kg
Fat, 6kg polytetrafluoroethylene (PTFE), 5kg graphite, 8kg thermoplastic polyurethanes, 1kg antioxidant and 1kg stabilizers are placed in high speed mixer
Carry out batch mixing 10min；
(2) material after the completion of step (1) batch mixing is added in double screw extruder, is added by side feeding manner
15kg aramid fiber powder, then carries out melt blending, finally by extruding pelletization, that is, obtains macromolecule self-lubricating material, wherein squeezing
It is 170 DEG C to go out temperature, and the screw speed of double screw extruder is 200rpm.
Tensile strength, density, coefficient of friction, abrasion and water absorption rate to the macromolecule self-lubricating material are tested.Its
In, the method for testing of tensile strength is carried out using testing standard GB/T1040, and coefficient of friction and abrasion are using ASTM G99-05 sides
Method is tested, and water absorption rate is carried out using testing standard GB/T1034.Specific test result is shown in Table 1.
With the macromolecule self-lubricating material as raw material, leaf spring grasswort bushing is prepared by injection moulding.Injection moulding
Concretely comprise the following steps：Macromolecule self-lubricating material is placed in baking oven in 6h is dried at 100 DEG C, then by macromolecule self-lubricating material
Injection moulding is carried out in the barrel of material addition injection machine, injection temperature is 200 DEG C in injection molding process, and injection pressure is
80MPa, injection moulding speed is the 70% of injection machine maximum injection moulding speed.The structure of the leaf spring grasswort bushing is as shown in Figure 1.
Embodiment 4：
Macromolecule self-lubricating material of the present invention and preparation method thereof, the leaf spring grasswort being made up of the macromolecule self-lubricating material
A kind of embodiment of bushing, the macromolecule self-lubricating material includes following components by weight：100 parts of acetal resins, 20
Part aramid fiber short fibre, 5 parts of polytetrafluoroethylene (PTFE), 5 parts of nitrile rubbers (NBR, toughener), 0.2 part of antioxidant and 0.2 part of stabilizer.
The macromolecule self-lubricating material is prepared by following methods：
(1) acetal resin is placed in baking oven in 5h is dried at 80 DEG C, then takes the dried polyformaldehyde trees of 100kg
Fat, 5kg polytetrafluoroethylene (PTFE), 5kg nitrile rubbers, 0.2kg antioxidant and 0.2kg stabilizers are placed in and batch mixing are carried out in high speed mixer
15min；
(2) material after the completion of step (1) batch mixing is added in double screw extruder, is added by side feeding manner
20kg aramid fiber short fibres, then carry out melt blending, finally by extruding pelletization, that is, obtain macromolecule self-lubricating material, wherein
Extrusion temperature is 200 DEG C, and the screw speed of double screw extruder is 300rpm.
Tensile strength, density, coefficient of friction, abrasion and water absorption rate to the macromolecule self-lubricating material are tested.Its
In, the method for testing of tensile strength is carried out using testing standard GB/T1040, and coefficient of friction and abrasion are using ASTM G99-05 sides
Method is tested, and water absorption rate is carried out using testing standard GB/T1034.Specific test result is shown in Table 1.
With the macromolecule self-lubricating material as raw material, leaf spring grasswort bushing is prepared by injection moulding.Injection moulding
Concretely comprise the following steps：Macromolecule self-lubricating material is placed in baking oven in 6h is dried at 100 DEG C, then by macromolecule self-lubricating material
Injection moulding is carried out in the barrel of material addition injection machine, injection temperature is 180 DEG C in injection molding process, and injection pressure is
120MPa, injection moulding speed is the 60% of injection machine maximum injection moulding speed.The structure of the leaf spring grasswort bushing is as shown in Figure 1.
The performance test data of the macromolecule self-lubricating material of each embodiment of table 1
From table 1, macromolecule self-lubricating material of the invention has mechanical property higher；Relatively low water absorption rate is caused
The leaf spring grasswort bushing being made up of the macromolecule self-lubricating material has preferable dimensional stability；The macromolecule self-lubricating material
Density be only less than the 1/5 of metal, leaf spring grasswort bushing prepared therefrom can realize light weight effect；Relatively low coefficient of friction
Can make the product there is self-lubricating property and service life more long with abrasion.And more preferred formula is used in embodiment 4, it is high
The water absorption rate of molecule self-lubricating material is lower, two hours wear extenies are smaller, illustrate using preferably be formulated the macromolecule that obtains oneself
Lubriation material has more outstanding dimensional stability and more preferable wearability.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of macromolecule self-lubricating material, it is characterised in that the macromolecule self-lubricating material includes following by weight
Component：
2. macromolecule self-lubricating material according to claim 1, it is characterised in that the macromolecule self-lubricating material is by weight
Amount part meter includes following components：
3. macromolecule self-lubricating material according to claim 1 and 2, it is characterised in that the aramid fiber is that aramid fiber is long
One or more in fiber, aramid fiber short fibre and aramid fiber powder.
4. macromolecule self-lubricating material according to claim 1 and 2, it is characterised in that the anti-wear agent is polytetrafluoroethyl-ne
One or more in alkene, graphite and molybdenum bisuphide.
5. macromolecule self-lubricating material according to claim 1 and 2, it is characterised in that the toughener is thermoplastic poly
One or more in urethane, ethylene propylene diene rubber, nitrile rubber and ethylene-octene copolymer.
6. a kind of preparation method of macromolecule self-lubricating material as any one of claim 1-5, comprises the following steps：
(1) acetal resin is placed in baking oven and is dried, 100 parts of dried acetal resins and phase are then taken by weight
Answering anti-wear agent, toughener, antioxidant and the stabilizer of weight portion to be placed in carries out batch mixing in high speed mixer；
(2) material after the completion of step (1) batch mixing is added in double screw extruder, corresponding weight is added by side feeding manner
The aramid fiber of part is measured, melt blending is then carried out, finally by extruding pelletization, that is, macromolecule self-lubricating material is obtained.
7. preparation method according to claim 6, it is characterised in that in step (1), the dry temperature is 80 DEG C-
100 DEG C, the dry time is 3-6h；The time of the batch mixing is 5-15min.
8. the preparation method according to claim 6 or 7, it is characterised in that in step (2), the extrusion of the extruding pelletization
Temperature is 170 DEG C -200 DEG C, and the screw speed of the double screw extruder is 100-350rpm.
9. a kind of leaf spring grasswort bushing, it is characterised in that the leaf spring grasswort bushing is as any one of claim 1-5
The macromolecule self-lubricating that macromolecule self-lubricating material or the preparation method as any one of claim 6-8 are prepared
Material is obtained by injection moulding.
10. leaf spring grasswort bushing according to claim 9, it is characterised in that the injection-moulding step is specific as follows：Will
The macromolecule self-lubricating material is placed in baking oven in 3-6h is dried at 80 DEG C -100 DEG C, is then added macromolecule self-lubricating material
Enter and carry out injection moulding in the barrel of injection machine, obtain final product leaf spring grasswort bushing, injection temperature control is 170 in injection molding process
DEG C -200 DEG C, injection pressure control is in 40-120MPa, 30%-80% of the injection moulding speed control in injection machine maximum injection moulding speed.
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| CN201611147683.9A CN106751421A (en) | 2016-12-13 | 2016-12-13 | Macromolecule self-lubricating material and preparation method thereof, the leaf spring grasswort bushing being made up of the macromolecule self-lubricating material |
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| CN201611147683.9A CN106751421A (en) | 2016-12-13 | 2016-12-13 | Macromolecule self-lubricating material and preparation method thereof, the leaf spring grasswort bushing being made up of the macromolecule self-lubricating material |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107286566A (en) * | 2017-07-17 | 2017-10-24 | 宁波海雨新材料科技有限公司 | A kind of activeness and quietness improved polyoxymethylene composite |
| CN107383867A (en) * | 2017-08-28 | 2017-11-24 | 株洲时代新材料科技股份有限公司 | A kind of bushing manufacture craft |
| CN107434916A (en) * | 2017-08-29 | 2017-12-05 | 株洲时代新材料科技股份有限公司 | A kind of semi-trailer support supporting leg bushing and preparation method thereof |
| CN107685482A (en) * | 2017-11-02 | 2018-02-13 | 陕西德仕汽车部件（集团）有限责任公司 | A kind of rubber bushing and preparation method thereof |
| CN108105197A (en) * | 2017-12-21 | 2018-06-01 | 芜湖恒隆汽车转向系统有限公司 | A kind of steering gear noise test oil cylinder mechanism |
| CN109135278A (en) * | 2018-08-09 | 2019-01-04 | 南京欧纳壹有机光电有限公司 | A kind of engineering plastics and its preparation process with higher abrasion resistance |
| CN113248862A (en) * | 2021-04-14 | 2021-08-13 | 广州搜料信息技术有限公司 | Modified POM copolymer resin and preparation process thereof |
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| CN102558753A (en) * | 2010-12-27 | 2012-07-11 | 合肥杰事杰新材料股份有限公司 | Reinforced toughened self-lubricating polyformaldehyde composite material and preparation method thereof |
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| CN107383867A (en) * | 2017-08-28 | 2017-11-24 | 株洲时代新材料科技股份有限公司 | A kind of bushing manufacture craft |
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| CN107685482A (en) * | 2017-11-02 | 2018-02-13 | 陕西德仕汽车部件（集团）有限责任公司 | A kind of rubber bushing and preparation method thereof |
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Application publication date: 20170531 |