CN105909710B - A kind of tripartite's boron nitride automotive brake friction material and preparation method thereof - Google Patents
A kind of tripartite's boron nitride automotive brake friction material and preparation method thereof Download PDFInfo
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- CN105909710B CN105909710B CN201610489576.8A CN201610489576A CN105909710B CN 105909710 B CN105909710 B CN 105909710B CN 201610489576 A CN201610489576 A CN 201610489576A CN 105909710 B CN105909710 B CN 105909710B
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- 239000002783 friction material Substances 0.000 title claims abstract description 54
- 229910052582 BN Inorganic materials 0.000 title claims abstract description 38
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims description 16
- 239000000835 fiber Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000002131 composite material Substances 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims description 22
- 239000004744 fabric Substances 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 16
- 239000000853 adhesive Substances 0.000 claims description 15
- 230000001070 adhesive effect Effects 0.000 claims description 15
- 229920006231 aramid fiber Polymers 0.000 claims description 13
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 9
- MKPXGEVFQSIKGE-UHFFFAOYSA-N [Mg].[Si] Chemical compound [Mg].[Si] MKPXGEVFQSIKGE-UHFFFAOYSA-N 0.000 claims description 9
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 8
- 239000004917 carbon fiber Substances 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 8
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 238000005245 sintering Methods 0.000 claims description 8
- 229920002748 Basalt fiber Polymers 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 5
- 229920002972 Acrylic fiber Polymers 0.000 claims description 5
- 229920000459 Nitrile rubber Polymers 0.000 claims description 5
- 229920000297 Rayon Polymers 0.000 claims description 5
- 229920001568 phenolic resin Polymers 0.000 claims description 5
- 239000005011 phenolic resin Substances 0.000 claims description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 230000008595 infiltration Effects 0.000 claims description 4
- 238000001764 infiltration Methods 0.000 claims description 4
- 238000013329 compounding Methods 0.000 claims description 3
- 238000000748 compression moulding Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000004381 surface treatment Methods 0.000 claims description 2
- 210000000988 bone and bone Anatomy 0.000 claims 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 1
- 150000001336 alkenes Chemical class 0.000 claims 1
- 239000007767 bonding agent Substances 0.000 claims 1
- 239000011591 potassium Substances 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 238000009987 spinning Methods 0.000 claims 1
- 239000010425 asbestos Substances 0.000 abstract description 10
- 229910052895 riebeckite Inorganic materials 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 230000008961 swelling Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 9
- 229910052787 antimony Inorganic materials 0.000 description 4
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- 206010027439 Metal poisoning Diseases 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- 229940007424 antimony trisulfide Drugs 0.000 description 1
- NVWBARWTDVQPJD-UHFFFAOYSA-N antimony(3+);trisulfide Chemical compound [S-2].[S-2].[S-2].[Sb+3].[Sb+3] NVWBARWTDVQPJD-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 208000010501 heavy metal poisoning Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 201000005202 lung cancer Diseases 0.000 description 1
- 208000020816 lung neoplasm Diseases 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- 230000002685 pulmonary effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000036301 sexual development Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- IHBMMJGTJFPEQY-UHFFFAOYSA-N sulfanylidene(sulfanylidenestibanylsulfanyl)stibane Chemical compound S=[Sb]S[Sb]=S IHBMMJGTJFPEQY-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- F16D69/023—Composite materials containing carbon and carbon fibres or fibres made of carbonizable material
-
- 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
- F16D2200/00—Materials; Production methods therefor
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
- F16D2200/0065—Inorganic, e.g. non-asbestos mineral fibres
-
- 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
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0082—Production methods therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a kind of tripartite's boron nitride automotive brake friction material, including composite fibre skeleton and the frictional layer that is arranged on composite fibre skeleton.The friction material of the present invention does not add asbestos, and used of low cost, and basis material integral coherence is more preferable, and wire is evenly distributed, friction material heat conduction, heat dissipation faster, it is more excellent.The more existing friction material precision higher of friction original paper size made by friction material using the present invention.The problems such as completely avoiding the bubble swelling, layering and warpage of the production process appearance of laminate product.The friction material of the present invention has the characteristics that high-low temperature resistant, wear-resistant, low noise and friction braking torque are stable, environmentally friendly.
Description
Technical field
The present invention relates to friction material field, more particularly, to a kind of tripartite's boron nitride automotive brake friction material and its
Preparation method.
Background technology
The effects that friction material is for playing transmission, braking, deceleration, steering, parking in many movable machineries and equipment
Functional accessory, it may be said that since having mechanical movement, the mankind just have the requirement of skidding, and wooden unit, ox-hide, rubber etc. were all once
Through being used as brake material.Before the 1970s and 1980s in last century asbestos friction material as traditional product always by people
Class largely uses, after this, since known widely asbestos can cause pulmonary lesion and ask rind gall and related with the generation of lung cancer.1972
Year international medical oncology discussion confirms that asbestos fibre contains carcinogen, hereafter, friction goods without asbestos and pollution-free
Change the common recognition for being increasingly becoming world's sexual development.No. 13 regulation of United Nations Economic Commission for Europe (ECE) and international standard committee member
In the related standard of meeting (ISO), explicit stipulation is forbidden producing and selling and using asbestos product.International Maritime Organization 1974S0LAS is public
" for all ships, the novel installation containing asbestos material should be forbidden about 2000 amendment clear stipulaties, be wanted unless there are special
It asks." State Bureau of Technical Supervision provides in mandatory national standards GB12676-1999, " braked from 1 day October in 2003
Liner should not contain asbestos ".
In existing asbestos-free friction material technology, there are many alternative materials as asbestos fibre reinforcing material, metal
Fiber, carbon fiber, glass fibre, ceramic fibre and aramid fiber are all the friction members such as all kinds of brakes of manufacture, clutch facing
Ideal reinforcing material in the raw material of part, characteristic and price and mutual proportioning are largely fixed
The performance and application prospect of friction element.Friction material is mainly made of three parts:1, adhesive；2, reinforcing fiber；3, it rubs
Wipe properties modifier.Must according to target to be achieved carry out the selections of various formulas and composition material, and select
Suitable manufacturing method and production technology.
Currently, automobile brake friction plate largely uses two antimony of curing, it to be used for profit of the friction material in high temperature friction
It is sliding, it is ensured that the stabilization of high temperature friction coefficient.Antimony trisulfide is obtained by selected and chemical purification by brightness Jin Kuang, is black solid powder
End.Its fusing point is relatively low, is 548 0C, the antimony oxide generated after pyrolytic, and the gold generated in the presence of reducing agent
Belonging to antimony, the oxidizing fire of material, keeps the stable friction factor of material, improves the ability of anti-burning of material when can prevent high temperature,
Organic bond decomposition rate at high temperature can also be reduced, improve the service life of material, play high temperature inorganic adhesive and
The effect of lubrication friction regulator.But antimony is heavy metal element, after entering in air, rainwater and soil with friction dust not
It is degradable, directly or indirectly to human body, heavy metal poisoning can be caused to health of people, destroy human body interior circulatory and respiratory road and
Digest road junction therefore, EC regulations require to gradually reduce the dosage of the antimonous sulfide in friction material, at the latest in the year two thousand twenty
Thoroughly forbid the addition in friction material.Obviously, prior art automobile brake friction plate is right there is containing heavy metal antimony
Environment pollutes, and is damaged to human body, i.e., by disabled the problems such as being used in automobile brake friction plate.
Invention content
Problem to be solved by this invention is, for the above-mentioned prior art in disadvantage, propose innovation scheme, especially one
Kind can reduce production cost, the heat conduction for improving friction material, the stability for heat dissipation performance, reducing noise, improving friction coefficient
Friction material.
To solve the above problems, the scheme that the present invention uses is as follows：A kind of tripartite's boron nitride automotive brake friction material,
It is characterised in that it includes 1-3 parts of low-carbon steel fibres, 2-5 parts of potassium titanate fibres, 4-6 parts of tripartite's boron nitride powders, 3-6 parts of graphite powders,
The composite fibre skeleton of 2-3 parts of silicon magnesium calcified material ceramic fibres and 3-5 parts of polytetrafluoroethylene (PTFE) composition；On the composite fibre skeleton
By adhesive adhesion, frictional layer is set；The frictional layer includes twill weave cloth；The twill weave cloth is by friction spun yarn, copper
Silk, basalt fibre, aramid fiber and carbon fiber are twisted twine with certain proportion and weave；The friction spun yarn is by viscose glue
Fiber, aramid fiber and acrylic fiber is blended forms；Described adhesive is mixed to prepare by phenolic resin and nitrile rubber.
Wherein, tripartite's boron nitride powder, graphite powder granularity be 20-30 mesh.
Further, according to tripartite's boron nitride automotive brake friction material described in above-mentioned design scheme, the composite fibre
Skeleton includes 3 parts of low-carbon steel fibres, 5 parts of potassium titanate fibres, 6 parts of tripartite's boron nitride powders, 3 parts of graphite powders, 3 parts of silicon magnesium calcified material potteries
Porcelain fiber and 3 parts of polytetrafluoroethylene (PTFE).
Further, according to tripartite's boron nitride automotive brake friction material described in above-mentioned design scheme, the composite fibre
Skeleton includes 1 part of low-carbon steel fibre, 2 parts of potassium titanate fibres, 4 parts of tripartite's boron nitride powders, 3 parts of graphite powders, 2 parts of silicon magnesium calcified material potteries
Porcelain fiber and 3 parts of polytetrafluoroethylene (PTFE).
Further, according to tripartite's boron nitride automotive brake friction material described in above-mentioned design scheme, the friction spun yarn,
Copper wire, basalt fibre, aramid fiber and carbon fiber according to S twist, the twist be 80~100 twistings for twine.
Further, according to the preparation method of tripartite's boron nitride automotive brake friction material described in above-mentioned design scheme, packet
Include following steps：
(1) compounding, mixing：Take 1-3 parts of low-carbon steel fibres, 2-5 parts of potassium titanate fibres, 4-6 parts of tripartite's boron nitride powders, 3-6
It is uniform that 1-3 minutes abundant batch mixings are stirred in part graphite powder and 2-3 parts of silicon magnesium calcified material ceramic fibres addition homogenizers, then are added
Entering 3-5 parts of polytetrafluorethylepowder powders to stir 6-7 minute, obtains uniform batch mixing, the rotating speed of homogenizer is 3200-3500 turns/
min；
(2) friction spun yarn is prepared：Take viscose rayon, aramid fiber and acrylic fiber according to weight ratio 1:1:1 blended acquisition
Friction spun yarn；
(3) twine is prepared：By friction spun yarn, copper wire, basalt fibre, aramid fiber and carbon fiber with certain proportion into
Row plying, is made twine；
(4) twill weave cloth is prepared：Twine made from step (3) is woven into twill weave cloth with twill weave machine；
(5) compression moulding：Twill weave cloth made from step (4) is laid on plastics hydraulic forming machine mold cavity bottom,
Then uniform batch mixing prepared by step (1) is laid on twill weave cloth, finally covers one layer of twill again on uniform batch mixing
Woven cloth when being unidirectionally forced into 80-180MPa with the rate of 3MPa/min, keeps pressure 30-70 minutes at ambient temperature
Afterwards, demoulding obtains preforming sample；
(6) adhesive is prepared：Take phenolic resin and nitrile rubber according to weight ratio 3:Then 1 proportioning is added blender and stirs
It mixes 5 minutes, 300 turns/min of rotating speed, adhesive is made；
(7) it infiltrates：Preforming sample made from step (5) is immersed in adhesive made from step (6) 40-70 minutes,
Binder dosage is 1.5 times of preforming sample volume, then pulls drip-dry out；
(8) sintering curing：It will be put into electric furnace with 80 degrees Celsius/hour by the preforming sample of step (7) infiltration
Heating rate rises to 400-420 degrees Celsius from room temperature, and sintering makes its solidification in 5-8 hours, then cools down, and control rate of temperature fall is
40 degrees Celsius/hour are down to 150 degrees Celsius or less again with electric furnace cooled to room temperature, automobile friction material are made.
Further, according to the preparation method of tripartite's boron nitride automotive brake friction material described in above-mentioned design scheme, institute
The rotating speed for stating step (1) high speed blender is 3300 turns/min.
Further, according to the preparation method of tripartite's boron nitride automotive brake friction material described in above-mentioned design scheme, institute
It states and is forced into 170MPa in step (5), it is 60 minutes to keep pressure time.
Further, according to the preparation method of tripartite's boron nitride automotive brake friction material described in above-mentioned design scheme, institute
It is 60 minutes to state infiltrating time in step (7).
Further, according to the preparation method of tripartite's boron nitride automotive brake friction material described in above-mentioned design scheme, institute
It states temperature in step (8) and rises to 400 degrees Celsius, sintering time is 5 hours.
Further, according to the preparation method of tripartite's boron nitride automotive brake friction material described in above-mentioned design scheme, institute
The method of stating further includes the steps that automobile friction material reconditioning processing, surface treatment is made in step (8).
The technique effect of the present invention is as follows：Tripartite's boron nitride automotive brake friction material of the present invention, including mixing are fine
Dimension skeleton and the frictional layer being arranged on composite fibre skeleton.The friction material of the present invention does not add asbestos, and used at low cost
Honest and clean, basis material integral coherence is more preferable, and wire is evenly distributed, friction material heat conduction, heat dissipation faster, it is more excellent.Utilize this hair
The more existing friction material precision higher of friction original paper size made by bright friction material.Completely avoid the life of laminate product
The problems such as bubble swelling, layering and warpage that production process occurs.The present invention friction material have high-low temperature resistant, it is wear-resistant,
The features such as low noise and stable, environmentally friendly friction braking torque.
Description of the drawings
Fig. 1 is the schematic cross-section of tripartite's boron nitride automotive brake friction material.
Specific implementation mode
The present invention is described in further details below by embodiment.
Embodiment：A kind of preparation method of tripartite's boron nitride automotive brake friction material, includes the following steps：
(1) compounding, mixing：Take 3 parts of low-carbon steel fibres, 2 parts of potassium titanate fibres, 4 parts of tripartite's boron nitride powders, 3 parts of graphite powders
It is uniform with 3 minutes abundant batch mixings are stirred in 2 parts of silicon magnesium calcified material ceramic fibres addition homogenizers, add 3 parts of polytetrafluoros
Ethylene powder stirs 6 minutes, obtains uniform batch mixing, the rotating speed of homogenizer is 3300 turns/min；
(2) friction spun yarn is prepared：Take viscose rayon, aramid fiber and acrylic fiber according to weight ratio 1:1:1 blended acquisition
Friction spun yarn；
(3) twine is prepared：By friction spun yarn, copper wire, basalt fibre, aramid fiber and carbon fiber with certain proportion into
Row plying, is made twine；
(4) twill weave cloth is prepared：Twine made from step (3) is woven into twill weave cloth with twill weave machine；
(5) compression moulding：Twill weave cloth made from step (4) is laid on plastics hydraulic forming machine mold cavity bottom,
Then uniform batch mixing prepared by step (1) is laid on twill weave cloth, finally covers one layer of twill again on uniform batch mixing
Woven cloth when being unidirectionally forced into 120MPa with the rate of 3MPa/min, keeps pressure after 50 minutes, demoulding at ambient temperature
Obtain preforming sample；
(6) adhesive is prepared：Take phenolic resin and nitrile rubber according to weight ratio 3:Then 1 proportioning is added blender and stirs
It mixes 5 minutes, 300 turns/min of rotating speed, adhesive is made；
(7) it infiltrates：Preforming sample made from step (5) is immersed in adhesive made from step (6) 40-70 minutes,
Binder dosage is 1.5 times of preforming sample volume, then pulls drip-dry out；
(8) sintering curing：It will be put into electric furnace with 80 degrees Celsius/hour by the preforming sample of step (7) infiltration
Heating rate rises to 410 degrees Celsius from room temperature, and sintering makes its solidification in 5 hours, then cools down, and control rate of temperature fall is 40 Celsius
Degree/hour is down to 150 degrees Celsius or less again with electric furnace cooled to room temperature, automobile friction material is made.
Table 1 is the friction coefficient and wear rate test result table of the friction material of the present invention.
Tripartite's boron nitride automotive brake friction material of the present invention is also by having done noise test.It makes an uproar in 15000 brakings
In sound test, incidence of the noise more than 70db is 0.27%, and incidence of the noise more than 80db is 0, is far above international standard
Incidence of the noise more than 70db is less than 10%, the requirement that incidence of the noise more than 105db is 0.
Claims (10)
1. a kind of tripartite's boron nitride automotive brake friction material, which is characterized in that including 1-3 parts of low-carbon steel fibres, 2-5 parts of titaniums
Sour potassium fiber, 4-6 parts of tripartite's boron nitride powders, 3-6 parts of graphite powders, 2-3 parts of silicon magnesium calcified material ceramic fibres and 3-5 parts of polytetrafluoroethyl-nes
The composite fibre skeleton of alkene composition；Frictional layer is arranged by adhesive adhesion on the composite fibre skeleton；The frictional layer packet
Include twill weave cloth；The twill weave cloth is by friction spun yarn, copper wire, basalt fibre, aramid fiber and carbon fiber with certain
Ratio is twisted twine and weaves；The friction spun yarn is by viscose rayon, aramid fiber and acrylic fiber is blended forms；It is described
Adhesive is mixed to prepare by phenolic resin and nitrile rubber.
2. tripartite's boron nitride automotive brake friction material according to claim 1, which is characterized in that the composite fibre bone
Frame includes 3 parts of low-carbon steel fibres, 5 parts of potassium titanate fibres, 6 parts of tripartite's boron nitride powders, 3 parts of graphite powders, 3 parts of silicon magnesium calcified material ceramics
Fiber and 3 parts of polytetrafluoroethylene (PTFE).
3. tripartite's boron nitride automotive brake friction material according to claim 1, which is characterized in that the composite fibre bone
Frame includes 1 part of low-carbon steel fibre, 2 parts of potassium titanate fibres, 4 parts of tripartite's boron nitride powders, 3 parts of graphite powders, 2 parts of silicon magnesium calcified material ceramics
Fiber and 3 parts of polytetrafluoroethylene (PTFE).
4. tripartite's boron nitride automotive brake friction material according to claim 1, which is characterized in that the friction spun yarn,
Copper wire, basalt fibre, aramid fiber and carbon fiber according to S twist, the twist be 80 ~ 100 twistings for twine.
5. the preparation method of tripartite's boron nitride automotive brake friction material according to claim 1, which is characterized in that including
Following steps：
（1）Compounding, mixing：Take 1-3 parts of low-carbon steel fibres, 2-5 parts of potassium titanate fibres, 4-6 parts of tripartite's boron nitride powders, 3-6 parts of stones
It is uniform that 1-3 minutes abundant batch mixings are stirred in ink powder and 2-3 parts of silicon magnesium calcified material ceramic fibres addition homogenizers, add 3-
5 parts of polytetrafluorethylepowder powders stir 6-7 minutes, obtain uniform batch mixing, the rotating speed of homogenizer is that 3200-3500 turns/min；
（2）Prepare friction spun yarn：Take viscose rayon, aramid fiber and acrylic fiber according to weight ratio 1:1:1 blended is rubbed
Spinning；
（3）Prepare twine：Friction spun yarn, copper wire, basalt fibre, aramid fiber and carbon fiber are closed with certain proportion
Twine is made in stock；
（4）Prepare twill weave cloth：By step（3）Twine obtained is woven into twill weave cloth with twill weave machine；
（5）Compression moulding：By step（4）Twill weave cloth obtained is laid on plastics hydraulic forming machine mold cavity bottom, then
By step（1）The uniform batch mixing prepared is laid on twill weave cloth, finally covers one layer of twill weave again on uniform batch mixing
Cloth when being unidirectionally forced into 80-180MPa with the rate of 3MPa/min, keeps pressure after 30-70 minutes, takes off at ambient temperature
Mould obtains preforming sample；
（6）Prepare adhesive：Take phenolic resin and nitrile rubber according to weight ratio 3:Then 1 proportioning is added blender and stirs 5 points
Adhesive is made in clock, 300 turns/min of rotating speed；
（7）Infiltration：By step（5）Preforming sample obtained immerses step（6）40-70 minutes in adhesive obtained, bonding
Agent dosage is 1.5 times of preforming sample volume, then pulls drip-dry out；
（8）Sintering curing：Step will be passed through（7）The preforming sample of infiltration is put into electric furnace with the heating of 80 degrees Celsius/hour
Rate rises to 400-420 degrees Celsius from room temperature, and sintering makes its solidification in 5-8 hours, then cools down, and control rate of temperature fall is taken the photograph for 40
Family name's degree/hour is down to 150 degrees Celsius or less again with electric furnace cooled to room temperature, automobile friction material is made.
6. the preparation method of tripartite's boron nitride automotive brake friction material according to claim 5, which is characterized in that described
Step（1）The rotating speed of high speed blender is 3300 turns/min.
7. the preparation method of tripartite's boron nitride automotive brake friction material according to claim 5, which is characterized in that described
Step（5）In be forced into 170MPa, it is 60 minutes to keep pressure time.
8. the preparation method of tripartite's boron nitride automotive brake friction material according to claim 5, which is characterized in that described
Step（7）Middle infiltrating time is 60 minutes.
9. the preparation method of tripartite's boron nitride automotive brake friction material according to claim 5, which is characterized in that described
Step（8）Middle temperature rises to 400 degrees Celsius, and sintering time is 5 hours.
10. the preparation method of tripartite's boron nitride automotive brake friction material according to claim 5, which is characterized in that institute
The method of stating further includes by step（8）The step of automobile friction material reconditioning processing, surface treatment is made.
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| JP7078359B2 (en) | 2017-06-27 | 2022-05-31 | 曙ブレーキ工業株式会社 | Manufacturing method of sintered friction material and sintered friction material |
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