CN106633625A - Composite frictional material and preparation method thereof - Google Patents
Composite frictional material and preparation method thereof Download PDFInfo
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- C08K3/36—Silica
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/08—Oxygen-containing compounds
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
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Abstract
The invention provides a preparation method of a composite frictional material. The preparation method comprises the following steps that 1, a ferrous-based powder metallurgical frictional material is prepared; 2, shearing, smashing and screening are performed; 3, material mixing is performed; 4, the composite frictional material is prepared; 5 posttreatment is performed; 6, the composite frictional material is machined. Compared with the prior art, the composite frictional material integrates the characteristics of high temperature resistance and low abrasion resistance of the ferrous-based powder metallurgical frictional material and the characteristics of good toughness and low hardness of a resin-based composite material and has the advantages of high temperature resistance, low abrasion resistance, good toughness and low hardness. The ferrous-based powder metallurgical frictional material is used for preparing an automobile braking accessory, scratching of an automobile brake disc or drum is effectively avoided based on good braking performance, and frictional noise is small.
Description
Technical field
The invention belongs to the technical field of friction material, more particularly to a kind of composite friction material and preparation method thereof.
Background technology
Friction material is for playing the effects such as transmission, braking, deceleration, steering, parking in many movable machineries and equipment
Functional accessory, it may be said that from the beginning of having mechanical movement, the mankind just had the requirement of skidding, wooden unit, ox-hide, rubber etc. once
Jing is used as brake material.Before the 1970s and 1980s in last century asbestos friction material as traditional product always by people
Class is used in a large number, after this, because known widely asbestos can cause pulmonary lesion and ask rind gall and relevant with the generation of lung cancer.
International medical oncology discussion in 1972 confirms that asbestos fibre contains carcinogen, hereafter, friction goods without stone
Cottonizing and pollution-freeization are increasingly becoming the common recognition of world's sexual development.No. 13 regulation of UNECE (ECE) and
In the relevant standard of the international standard committee (ISO), expressly provide banning the production, sell and use asbestos product.International Maritime group
Knit the amendment clear stipulaties of 1974S0LAS pacts 2000 " for all ships, the novel installation containing asbestos material should forbid,
Unless there are particular/special requirement." State Bureau of Technical Supervision specifies in mandatory national standards GB12676-1999, " from 2003 10
From the moon 1, brake lining should not contain asbestos ".
It is many as the alternative materials of asbestos fibre reinforcing material in existing asbestos-free friction material technology, metal
Fiber, carbon fiber, glass fibre, ceramic fibre and aramid fiber are all the friction such as all kinds of brakes of manufacture, clutch facing units
Ideal reinforcing material in the raw material of part, its characteristic and price and proportioning each other are largely fixed
The performance and application prospect of friction element.Friction material is mainly made up of three parts:1st, adhesive；2nd, reinforcing fiber；3rd, rub
Wipe properties modifier.The selection of various formulas and composition material must be carried out according to the target to be reached, and is selected
Suitable manufacture method and production technology.
Composite friction material is by the material of different physicochemical characteristics and low intensity, the high molecular polymer matrix group of good toughness
Into.Because macromolecular material generally can not bear high stress and high temperature, in order to the surrender for improving macromolecular material it is strong
Degree, improves its high-temperature stability, all using cancellated thermosetting resin, generally various modified high temperature phenolic resin.Together
When, in order to reach preferable braking effect and comprehensive mechanical performance, also needing to add various fibers, lubriation material and is filled out abrasive material
Material, and polymer matrix material therein is almost intended only as the medium of transmission or distractive load.Therefore, composite friction material
Intensity depends primarily on the adhesion strength including other components including fiber and basal body interface.At present, in all kinds of friction catches
In device, the ratio that composite friction material is used is up to more than 90%.But in the braking bar of the high-speed overload such as aircraft and high-speed railway
Under part, the high temperature that rubs causes the high molecular polymer in composite friction material to decompose oxidation, loses stable friction catch performance.
Therefore frequently with powder metallurgy friction material.
It is based on Fe powder, to add appropriate anti-friction composition and increase grinding agent to iron-based powder metallurgy friction material, uniform mixed
It is compressing or pressure sintering after conjunction.It is a kind of excellent brake friction material, especially for the system of heavily loaded high speed
Dynamic occasion, its excellent thermal diffusivity and heat resistance can ensure that it completes more harsh braking function.It is most military winged
Machine and civil aircraft all adopt powder metallurgy brake flat.But due to the stronger rigidity of iron-based powder metallurgy friction material and hardness,
Easily cause scuffing and the frictional noise of automobile brake disc or drum.Therefore iron-based powder metallurgy friction material is also seldom in automobile system
Use on dynamic device.
The content of the invention
In view of this, the invention provides a kind of preparation method of composite friction material, comprises the steps：
1) preparation of iron-based powder metallurgy friction material：Matrix powder material and forming agent are well mixed, mould is poured into
Many elongated rod-shapeds are pressed into, each elongated rod-shaped pressed compact is separated, in being fitted into sintering furnace, in the bar for being passed through nitrogen or hydrogen
900～1000 DEG C of temperature rise under part, are incubated 3～6h, are cooled to room temperature, obtain iron-based powder metallurgy friction material；With quality percentage
Than meter, the formula of described matrix material is consisted of：Iron-based powder component 60～75%, friction component 20～25%, emollient component 20
～25%；By percentage to the quality, the iron-based powder component is made up of 85～90% iron powders and 10～15% copper powders；The friction
Component is quartz, one or more in alundum (Al2O3) and carborundum；The emollient component is graphite and MoS2；
2) shearing, crushing and screening：By step 1) gained iron-based powder metallurgy friction material shearing, crush, sieve；
3) batch mixing：By percentage to the quality, by cashew nut oil modified alkyd resin 15～25%, ferrous based powder metallurgical friction material
The blending of material 40～55%, reinforcing fiber 10～20%, abrasive material 5～15%, lubriation material 10～20% and filler 5～20% is equal
It is even；
4) preparation of composite friction material：By step 3) gained mixed powder weighs and is put in mould, hot-forming, protect
Pressure；Unload extruding dies；
5) post-process：8～24h is incubated at 150～180 DEG C, room temperature is cooled to, is come out of the stove；
6) it is machined into automobile-used ferrous based powder metallurgical composite friction material.
In some embodiments, the forming agent is kerosene work；Forming agent consumption is metal-based powder metallurgy friction material
The 0.3～0.5% of material material quality.
In some embodiments, the reinforcing fiber is vermiculite fiber, wollastonite fibre, sepiolite fibre, glass fibers
One or more of dimension, ceramic fibre, aramid fiber, carbon fiber and polyacrylonitrile fibre.
In some embodiments, the abrasive material is aluminum oxide, silica, zirconium sulfate, calcirm-fluoride, carborundum, iron oxide
With one or more of glass-cermic powder.
In some embodiments, the lubriation material is graphite, molybdenum bisuphide, tungsten disulfide, cuprous sulfide, sulfuration
Antimony, magnesia, lead, bismuth, antimony, coke and talcous one or more.
In some embodiments, described filler is kaolin, feldspar powder, barium sulfate, calcium carbonate, tyre talc and wollastonite
One or more of powder.
Present invention also offers a kind of preparation method of composite friction material, the mould of pouring into is pressed into many elongate rods
It is to pour matrix powder material and forming agent into mould with 300～400MPa pressure, is pressed into a diameter of 2～3mm, length is
The elongated rod-shaped of 200～250mm.
In some embodiments, it is described it is hot-forming be, at 150 DEG C, to carry out under 5～20MPa pressure conditions；The guarantor
The time of pressure is 5～10 minutes.
In some embodiments, described being machined into after automobile-used ferrous based powder metallurgical composite friction material also include spray
Paint；The step 1) and 5) be cooled to room temperature to cool to room temperature with the furnace；Described sieving is sieved using 10～15 eye mesh screens
Choosing.
Present invention also offers a kind of composite friction material.
Composite friction material provided by the present invention compared with prior art, has the advantage that：
Compared to existing technology, composite friction material of the invention combines iron-based powder metallurgy friction material high temperature resistant, low mill
The characteristics of consumption and resin-base composite friction material good toughness, the characteristics of hardness is low, there is provided it is a kind of that there is high temperature resistant, low mill simultaneously
Ferrous based powder metallurgical composite friction material of the low feature of consumption, good toughness, hardness and preparation method thereof, automobile-used iron-based powder of the invention
Metallurgical composite friction material be used for prepare braking automobile accessory, with good braking quality on the basis of, be prevented effectively from automobile brake
The scuffing of disk or drum, and frictional noise is little.
And it is understandable that：
(1) high molecular polymer is present invention employs as the matrix of material, it is resistance to reference to iron-based powder metallurgy friction material
The characteristics of high temperature, low abrasion and resin-base composite friction material good toughness, the characteristics of hardness is low so that automobile-used ferrous based powder metallurgical
The case hardness of composite friction material is relatively low, and elastic modelling quantity is moderate.
(2) composite friction material of the present invention remains powder metallurgy friction material and has stable coefficient of friction and good
Abrasion resistant qualities, the service life of friction material is improved, and high-temperature stability is improved.
(3) composite friction material be used for prepare braking automobile accessory, with good braking quality on the basis of, be prevented effectively from vapour
The scuffing of car brake disc or drum.
(4) composite friction material is particularly well-suited to big-and-middle-sized vehicle and urban rail transit vehicles, with widely
Application prospect.
In sum, the composite friction material of special construction of the present invention, it has the advantages that above-mentioned many and practical value,
And similar structure design is there are no in like product publish or use and really belong to innovation, generate handy and practical
Effect, more existing health protection tea has the multinomial effect promoted, so as to more be suitable to practicality, and with extensive industrial value.
Specific embodiment
For the ease of understanding the present invention, technical scheme is elaborated with reference to the mode of embodiment,
Elaborate many details in order to fully understand the present invention in the following description.
But the present invention can be to be much different from alternate manner described here implementing, and those skilled in the art can be with
Similar improvement is done in the case of without prejudice to intension of the present invention, therefore the present invention is not embodied as being limited by following public.
As used herein, term：
" one ", " one kind " and " described " are used interchangeably and refer to one or more.
"and/or" is used to represent that one of illustrated situation or both may to occur, and for example, A and/or B includes (A
And B) and (A or B)；
In addition, the scope stated by end points herein includes all numerical value (for example, 1 to 10 bag included in the range of this
Include 1.4,1.9,2.33,5.75,9.98 etc.).
In addition, the statement of " at least one " herein include one and the above all numbers (for example, at least 2, at least
4, at least 6, at least 8, at least 10, at least 25, at least 50, at least 100 etc.).
The invention provides a kind of preparation method of composite friction material, comprises the steps：
1) preparation of iron-based powder metallurgy friction material：Matrix powder material and forming agent are well mixed, mould is poured into
Many elongated rod-shapeds are pressed into, each elongated rod-shaped pressed compact is separated, in being fitted into sintering furnace, in the bar for being passed through nitrogen or hydrogen
900～1000 DEG C of temperature rise under part, are incubated 3～6h, are cooled to room temperature, obtain iron-based powder metallurgy friction material；With quality percentage
Than meter, the formula of described matrix material is consisted of：Iron-based powder component 60～75%, friction component 20～25%, emollient component 20
～25%；By percentage to the quality, the iron-based powder component is made up of 85～90% iron powders and 10～15% copper powders；The friction
Component is quartz, one or more in alundum (Al2O3) and carborundum；The emollient component is graphite and MoS2；
2) shearing, crushing and screening：By step 1) gained iron-based powder metallurgy friction material shearing, crush, sieve；
3) batch mixing：By percentage to the quality, by cashew nut oil modified alkyd resin 15～25%, ferrous based powder metallurgical friction material
The blending of material 40～55%, reinforcing fiber 10～20%, abrasive material 5～15%, lubriation material 10～20% and filler 5～20% is equal
It is even；
4) preparation of composite friction material：By step 3) gained mixed powder weighs and is put in mould, hot-forming, protect
Pressure；Unload extruding dies；
5) post-process：8～24h is incubated at 150～180 DEG C, room temperature is cooled to, is come out of the stove；
6) it is machined into composite friction material.
It is above-mentioned, compared to existing technology, the present invention composite friction material combine iron-based powder metallurgy friction material high temperature resistant,
The characteristics of low abrasion and resin-base composite friction material good toughness, the characteristics of hardness is low, there is provided it is a kind of that there is high temperature resistant, low simultaneously
Abrasion, good toughness, the ferrous based powder metallurgical composite friction material of the low feature of hardness and preparation method thereof, automobile-used ferrous alloy powder of the invention
Last metallurgy composite friction material is used to prepare braking automobile accessory, with good braking quality on the basis of, be prevented effectively from automobile system
The scuffing of Moving plate or drum, and frictional noise is little.
And it is understandable that：
(1) high molecular polymer is present invention employs as the matrix of material, it is resistance to reference to iron-based powder metallurgy friction material
The characteristics of high temperature, low abrasion and resin-base composite friction material good toughness, the characteristics of hardness is low so that automobile-used ferrous based powder metallurgical
The case hardness of composite friction material is relatively low, and elastic modelling quantity is moderate.
(2) composite friction material of the present invention remains powder metallurgy friction material and has stable coefficient of friction and good
Abrasion resistant qualities, the service life of friction material is improved, and high-temperature stability is improved.
(3) composite friction material be used for prepare braking automobile accessory, with good braking quality on the basis of, be prevented effectively from vapour
The scuffing of car brake disc or drum.
(4) composite friction material is particularly well-suited to big-and-middle-sized vehicle and urban rail transit vehicles, with widely
Application prospect.
In some inventive embodiments, the forming agent is kerosene work；Forming agent consumption is metal-based powder metallurgy friction
The 0.3～0.5% of material feedstock quality.
In some inventive embodiments, the reinforcing fiber is vermiculite fiber, wollastonite fibre, sepiolite fibre, glass
One or more of fiber, ceramic fibre, aramid fiber, carbon fiber and polyacrylonitrile fibre.
In some inventive embodiments, the abrasive material is aluminum oxide, silica, zirconium sulfate, calcirm-fluoride, carborundum, oxidation
One or more of iron and glass-cermic powder.
In some inventive embodiments, the lubriation material is graphite, molybdenum bisuphide, tungsten disulfide, cuprous sulfide, sulfuration
Antimony, magnesia, lead, bismuth, antimony, coke and talcous one or more.
In some inventive embodiments, described filler is kaolin, feldspar powder, barium sulfate, calcium carbonate, tyre talc and silicon ash
One or more of stone flour.
In some inventive embodiments, described pour mould into be pressed into many elongate rods be by matrix powder material and shaping
Agent pours mould into 300～400MPa pressure, is pressed into a diameter of 2～3mm, and length is the elongated rod-shaped of 200～250mm.
In some inventive embodiments, it is described it is hot-forming be, at 150 DEG C, to carry out under 5～20MPa pressure conditions；It is described
The time of pressurize is 5～10 minutes.
In some inventive embodiments, described being machined into after automobile-used ferrous based powder metallurgical composite friction material also includes
Spray painting；The step 1) and 5) be cooled to room temperature to cool to room temperature with the furnace；Described sieving is carried out using 10～15 eye mesh screens
Screening.
Present invention also offers a kind of composite friction material.
For the ease of understanding the present invention, with reference to embodiment technical scheme is further illustrated.Applicant
Statement, the present invention illustrates the detailed process equipment of the present invention and technological process, but the present invention not office by above-described embodiment
It is limited to above-mentioned detailed process equipment and technological process, that is, does not mean that the present invention has to rely on above-mentioned detailed process equipment and technique
Flow process could be implemented.Person of ordinary skill in the field is it will be clearly understood that any improvement in the present invention, each to product of the present invention
The equivalence replacement of raw material and the addition of auxiliary element, the selection of concrete mode etc., all fall within protection scope of the present invention and disclosure
Within the scope of.
Embodiment 1
The preparation of composite friction material：Material base stock formulation：By percentage to the quality, matrix material formula is iron
50%, copper 8%, quartz powder 10%, alundum (Al2O3) 5%, Er Liuization Molybdenum 1%；Graphite powder 10%；Forming agent is kerosene, with
On the basis of the gross weight of the mixture, the content of the forming agent is 0.2% gross weight.Material by more than uniformly mixes,
Enter mould with 500MPa pressure, be pressed into diameter phi 2mm × long 200mm elongated rod-shapeds, each elongated rod-shaped pressed compact is separated,
In being fitted into sintering furnace, 1000 DEG C of temperature rise under conditions of nitrogen is passed through are incubated 4h, cool to room temperature with the furnace.
Under the dry condition, place more than 24 hours；Then sheared, crushed, using the screen cloth of 8 mesh, sieved
Choosing.
The preparation of composite friction material：Material basic recipe (is calculated in mass percent)：Cashew nut oil modified alkyd resin is (holy
Spring PF6218) 20%；Iron-based powder metallurgy friction material 30%；Sepiolite fibre (length about 4～8mm) 8%；Vermiculite fiber
(length about 2～3mm) 5%；Quartz powder 10%；Flake graphite 10%；Barium sulfate 17%.
Each material is well mixed in batch mixer by more than.
Then, powder will be well mixed to pour in die cavity, at 150 DEG C；8 points of hot pressing temperature retention time under the conditions of pressure 15MPa
Clock.
Post processing.According to post-processing temperature, at 155～170 DEG C 24h is incubated；It is machined into automobile-used ferrous based powder metallurgical
Composite friction material, spray painting.
Embodiment 2
The preparation of composite friction material：Material base stock formulation：By percentage to the quality, matrix material formula is iron
45%, copper 8%, quartz powder 10%, alundum (Al2O3) 5%, Er Liuization Molybdenum 3%；Graphite powder 15%；Forming agent is kerosene, with
On the basis of the gross weight of the mixture, the content of the forming agent is 0.3% gross weight.Material by more than uniformly mixes,
Enter mould with 600MPa pressure, be pressed into diameter phi 3mm × long 200mm elongated rod-shapeds, each elongated rod-shaped pressed compact is separated,
In being fitted into sintering furnace, 800 DEG C of temperature rise under conditions of nitrogen is passed through are incubated 4h, cool to room temperature with the furnace.
Under the dry condition, place more than 15 hours；Then sheared, crushed, using the screen cloth of 8 mesh, sieved
Choosing.The preparation of composite friction material：Material basic recipe (is calculated in mass percent)：Cashew nut oil modified alkyd resin (holy well
PF6218) 20%；Iron-based powder metallurgy friction material 30%；Sepiolite fibre (length about 4～8mm) 8%；Vermiculite fiber is (long
Degree about 2～3mm) 5%；Quartz powder 15%；Flake graphite 12%；Barium sulfate 15%.
Each material is well mixed in batch mixer by more than.
Then, powder will be well mixed to pour in die cavity, at 160 DEG C；12 points of hot pressing temperature retention time under the conditions of pressure 20MPa
Clock.
Post processing.According to post-processing temperature, at 155～160 DEG C 12h is incubated；It is machined into automobile-used ferrous based powder metallurgical
Composite friction material, spray painting.
Embodiment 3
The preparation of composite friction material：Material base stock formulation：By percentage to the quality, matrix material formula is iron
48%, copper 12%, quartz powder 13%, alundum (Al2O3) 15%, Er Liuization Molybdenum 5%；Graphite powder 20%；Forming agent is kerosene,
On the basis of the gross weight of the mixture, the content of the forming agent is 0.3% gross weight.Material by more than uniformly mixes,
Mould is poured into 800MPa pressure, diameter phi 3mm × long 200mm elongated rod-shapeds are pressed into, each elongated rod-shaped pressed compact separates
Open, in being fitted into sintering furnace, 1000 DEG C of temperature rise under conditions of nitrogen is passed through are incubated 4h, cool to room temperature with the furnace.
Under the dry condition, place more than 18 hours；Then sheared, crushed, using the screen cloth of 8 mesh, sieved
Choosing.The preparation of composite friction material：Material basic recipe (is calculated in mass percent)：Cashew nut oil modified alkyd resin (holy well
PF6218) 20%；Iron-based powder metallurgy friction material 30%；Sepiolite fibre (length about 4～8mm) 8%；Vermiculite fiber is (long
Degree about 2～3mm) 5%；Quartz powder 15%；Flake graphite 12%；Barium sulfate 15%.
Each material is well mixed in batch mixer by more than.
Then, powder will be well mixed to pour in die cavity, at 160 DEG C；12 points of hot pressing temperature retention time under the conditions of pressure 20MPa
Clock.
Post processing.According to post-processing temperature, at 155～160 DEG C 12h is incubated；It is machined into automobile-used ferrous based powder metallurgical
Composite friction material, spray painting.
Claims (10)
1. the preparation method of composite friction material, it is characterised in that：Comprise the steps：
1) preparation of iron-based powder metallurgy friction material：Matrix powder material and forming agent are well mixed, mould compacting is poured into
Cheng Duogen elongated rod-shapeds, each elongated rod-shaped pressed compact are separated, in being fitted into sintering furnace, under conditions of nitrogen or hydrogen is passed through
900～1000 DEG C of temperature rise, is incubated 3～6h, is cooled to room temperature, obtains iron-based powder metallurgy friction material；By percentage to the quality,
The formula of described matrix material is consisted of：Iron-based powder component 60～75%, friction component 20～25%, emollient component 20～
25%；By percentage to the quality, the iron-based powder component is made up of 85～90% iron powders and 10～15% copper powders；The friction group
It is divided into quartz, one or more in alundum (Al2O3) and carborundum；The emollient component is graphite and MoS2；
2) shearing, crushing and screening：By step 1) gained iron-based powder metallurgy friction material shearing, crush, sieve；
3) batch mixing：By percentage to the quality, by cashew nut oil modified alkyd resin 15～25%, iron-based powder metallurgy friction material 40
～55%, the blending of reinforcing fiber 10～20%, abrasive material 5～15%, lubriation material 10～20% and filler 5～20% is uniform；
4) preparation of composite friction material：By step 3) gained mixed powder weighs and is put in mould, hot-forming, pressurize；Unload
Extruding dies；
5) post-process：8～24h is incubated at 150～180 DEG C, room temperature is cooled to, is come out of the stove；
6) it is machined into composite friction material.
2. the preparation method of composite friction material according to claim 1, it is characterised in that the forming agent is kerosene
Make；Forming agent consumption is the 0.3～0.5% of metal-based powder metallurgy friction material material quality.
3. the preparation method of composite friction material according to claim 1, it is characterised in that the reinforcing fiber is vermiculite
Fiber, wollastonite fibre, sepiolite fibre, glass fibre, ceramic fibre, aramid fiber, carbon fiber and polyacrylonitrile fibre
One or more.
4. the preparation method of composite friction material according to claim 1, it is characterised in that the abrasive material be aluminum oxide,
One or more of silica, zirconium sulfate, calcirm-fluoride, carborundum, iron oxide and glass-cermic powder.
5. the preparation method of composite friction material according to claim 1, it is characterised in that the lubriation material is stone
Ink, molybdenum bisuphide, tungsten disulfide, cuprous sulfide, antimony trisulfide, magnesia, lead, bismuth, antimony, coke and talcous one kind or many
Kind.
6. the preparation method of composite friction material according to claim 1, it is characterised in that described filler be kaolin,
One or more of feldspar powder, barium sulfate, calcium carbonate, tyre talc and wollastonite in powder.
7. the preparation method of composite friction material according to claim 1, it is characterised in that the mould of pouring into is pressed into
Many elongate rods are to pour matrix powder material and forming agent into mould with 300～400MPa pressure, it is pressed into a diameter of 2～
3mm, length is the elongated rod-shaped of 200～250mm.
8. the preparation method of composite friction material according to claim 1, it is characterised in that it is described it is hot-forming be
150 DEG C, carry out under 5～20MPa pressure conditions；The time of the pressurize is 5～10 minutes.
9. the preparation method of composite friction material according to claim 1, it is characterised in that it is described be machined into it is automobile-used
Also include spray painting after ferrous based powder metallurgical composite friction material；The step 1) and 5) be cooled to room temperature to cool to room with the furnace
Temperature；Described sieving is screened using 10～15 eye mesh screens.
10. a kind of composite friction material, it is characterised in that its preparation method by described in any one of claim 1～9 is obtained.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108247822A (en) * | 2017-12-01 | 2018-07-06 | 上海雨荣新材料科技有限公司 | A kind of cutting-off method of strip abrasive material green compact |
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| CN109082612A (en) * | 2018-07-11 | 2018-12-25 | 桐城市新瑞建筑工程有限公司 | A kind of fiber composite powdered metallurgical material and preparation method thereof |
| CN110421492A (en) * | 2019-06-12 | 2019-11-08 | 江苏君睿智能制造有限公司 | A kind of wear-resisting scouring pad for cold rolled shape cleaning |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105778405A (en) * | 2016-03-18 | 2016-07-20 | 华南理工大学 | Automotive iron-based powder metallurgy composite frictional material and manufacturing method thereof |
| CN105838023A (en) * | 2016-03-18 | 2016-08-10 | 华南理工大学 | Resin based powder metallurgy composite friction material for vehicles and preparation method thereof |
| CN106084645A (en) * | 2016-06-01 | 2016-11-09 | 华南理工大学 | A kind of automobile-used resin based powder metallurgy steel fiber friction material and preparation method thereof |
-
2016
- 2016-12-30 CN CN201611252636.0A patent/CN106633625A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105778405A (en) * | 2016-03-18 | 2016-07-20 | 华南理工大学 | Automotive iron-based powder metallurgy composite frictional material and manufacturing method thereof |
| CN105838023A (en) * | 2016-03-18 | 2016-08-10 | 华南理工大学 | Resin based powder metallurgy composite friction material for vehicles and preparation method thereof |
| CN106084645A (en) * | 2016-06-01 | 2016-11-09 | 华南理工大学 | A kind of automobile-used resin based powder metallurgy steel fiber friction material and preparation method thereof |
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| CN108317197B (en) * | 2017-10-20 | 2019-11-15 | 山西奥力安新材料科技有限公司 | A kind of ecological, environmental protective organic composite material brake pad and its preparation process |
| CN108247822A (en) * | 2017-12-01 | 2018-07-06 | 上海雨荣新材料科技有限公司 | A kind of cutting-off method of strip abrasive material green compact |
| CN109082612A (en) * | 2018-07-11 | 2018-12-25 | 桐城市新瑞建筑工程有限公司 | A kind of fiber composite powdered metallurgical material and preparation method thereof |
| CN110421492A (en) * | 2019-06-12 | 2019-11-08 | 江苏君睿智能制造有限公司 | A kind of wear-resisting scouring pad for cold rolled shape cleaning |
| CN110919005A (en) * | 2019-12-04 | 2020-03-27 | 湖北文理学院 | Pin shaft material with multilayer composite structure and preparation method thereof |
| CN110919005B (en) * | 2019-12-04 | 2022-06-28 | 湖北文理学院 | Pin shaft material with multilayer composite structure and preparation method thereof |
| CN111001813A (en) * | 2019-12-28 | 2020-04-14 | 合肥波林新材料股份有限公司 | High-antifriction iron-based vulcanized powder metallurgy oil-retaining bearing material and preparation method and application thereof |
| CN112124256A (en) * | 2020-09-08 | 2020-12-25 | 上海国由复合材料科技有限公司 | Tread cleaning device grinder for high-speed motor train and preparation process |
| CN112124256B (en) * | 2020-09-08 | 2021-10-08 | 上海国由复合材料科技有限公司 | Tread cleaning device grinder for high-speed motor train and preparation process |
| CN113004867A (en) * | 2021-02-23 | 2021-06-22 | 山东金麒麟股份有限公司 | Environment-friendly friction material, high-speed rail brake pad and preparation method |
| CN113004867B (en) * | 2021-02-23 | 2022-03-04 | 山东金麒麟股份有限公司 | Environment-friendly friction material, high-speed rail brake pad and preparation method |
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Application publication date: 20170510 |