CN106867451A - A kind of disk type brake disc of low brake torque variation and preparation method thereof - Google Patents
A kind of disk type brake disc of low brake torque variation and preparation method thereof Download PDFInfo
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- CN106867451A CN106867451A CN201710176383.1A CN201710176383A CN106867451A CN 106867451 A CN106867451 A CN 106867451A CN 201710176383 A CN201710176383 A CN 201710176383A CN 106867451 A CN106867451 A CN 106867451A
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- acrylonitrile butadiene
- disk type
- brake disc
- nitrile rubber
- type brake
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- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 238000004132 cross linking Methods 0.000 claims abstract description 55
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 50
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000002994 raw material Substances 0.000 claims abstract description 35
- 239000000843 powder Substances 0.000 claims abstract description 30
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000835 fiber Substances 0.000 claims abstract description 27
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 26
- 239000005011 phenolic resin Substances 0.000 claims abstract description 26
- 229910001369 Brass Inorganic materials 0.000 claims abstract description 22
- 239000010951 brass Substances 0.000 claims abstract description 22
- 239000002002 slurry Substances 0.000 claims abstract description 22
- 239000000571 coke Substances 0.000 claims abstract description 16
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 15
- 239000011707 mineral Substances 0.000 claims abstract description 15
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 14
- 239000010428 baryte Substances 0.000 claims abstract description 14
- 229910052601 baryte Inorganic materials 0.000 claims abstract description 14
- 229940007424 antimony trisulfide Drugs 0.000 claims abstract description 13
- NVWBARWTDVQPJD-UHFFFAOYSA-N antimony(3+);trisulfide Chemical compound [S-2].[S-2].[S-2].[Sb+3].[Sb+3] NVWBARWTDVQPJD-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910021383 artificial graphite Inorganic materials 0.000 claims abstract description 13
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 13
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims description 40
- 239000000463 material Substances 0.000 claims description 34
- 238000007731 hot pressing Methods 0.000 claims description 23
- 238000005507 spraying Methods 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 9
- 235000019738 Limestone Nutrition 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000006028 limestone Substances 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000001879 gelation Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000011068 loading method Methods 0.000 claims 1
- 238000003786 synthesis reaction Methods 0.000 claims 1
- 229920002994 synthetic fiber Polymers 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 60
- 230000006835 compression Effects 0.000 description 11
- 238000007906 compression Methods 0.000 description 11
- 238000002474 experimental method Methods 0.000 description 9
- 238000013016 damping Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000007590 electrostatic spraying Methods 0.000 description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 229920005549 butyl rubber Polymers 0.000 description 4
- 239000011591 potassium Substances 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 241001441571 Hiodontidae Species 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 244000226021 Anacardium occidentale Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 235000020226 cashew nut Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012669 compression test Methods 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 239000010466 nut oil Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/149—Antislip compositions
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of disk type brake disc of low brake torque variation and preparation method thereof, belong to technical field of automobile parts.The disk type brake disc includes that following raw material components and mass percent are：Phenolic resin 5% 14%, Fanglun slurry cake 8% 11%, mineral fibres 5% 6%, brass fiber 2% 3%, Frication powder 3% 7%, aluminum oxide 2% 3%, synthetic graphite 4% 5%, granular coke 4% 10%, ferrous sulfide 4% 7%, antimony trisulfide 2% 5%, potassium titanate 5% 10%, barite 30 36%, nitrile rubber 3 11%, the nitrile rubber includes micro- crosslinking acrylonitrile butadiene, half crosslinking acrylonitrile butadiene, full crosslinking acrylonitrile butadiene.The present invention utilizes the synergy of the PNBR of different crosslinking degrees, and the brake torque variation of effective gradual braking piece induces braking shake possibility, reduces the incidence of brake noise so as to reduce brake(-holder) block.
Description
Technical field
The present invention relates to technical field of automobile parts, more particularly to a kind of disk type brake disc of low brake torque variation
And preparation method thereof.
Background technology
Automobile disk type brake disc, refers on the disk brake of automotive wheel, in brake system of car
The breaking piece of most critical, the quality of braking automobile effect plays conclusive effect by brake(-holder) block.
And steering wheel jitter phenomenon that braking causes during braking automobile etc., brake torque variation mistake when its root is braking
Greatly.In order to control excitaton source, it is necessary to reduce the fluctuation of braking moment.Furthermore, it is contemplated that the compression property of disk type brake disc,
It is existing to be frequently utilized that in multiple disk type brake disc systems the mode for increasing compression ratio improves jitter phenomenon.
At present, brake torque variation and the friendly to brake disc are not optimal state, may trigger system
Moving plate DTV (disc thickness variation) is raised, and brakes or even vehicle some parts are in braking procedure
Produce forced vibration or braking jitter phenomenon, and these problems problem that to be also client increasingly pay close attention to.And with China's vapour
The quick upgrading of car industry, increasing client to brake comfortableness requirement more and more higher, therefore, automobile disk-type braking piece
Needs have new breakthrough on brake torque variation, and urgent need produces a kind of new disk type brake disc, makes it have low braking
Torque fluctuations, compression property be good, it is friendly to brake disc the characteristics of, to meet customer need.
The content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of low brake torque variation
Disk type brake disc and preparation method thereof, overcomes that brake torque variation present in prior art is big, compression property is poor, to braking
The problems such as disk is unfriendly.
To achieve these goals or other purposes, the present invention is achieved by the following technical solutions：
A kind of disk type brake disc of low brake torque variation, on the basis of the gross mass of the raw material components of disk type brake disc
Meter, the disk type brake disc includes that following raw material components and mass percent are：Phenolic resin 5%-14%, Fanglun slurry cake 8%-
11%, mineral fibres 5%-6%, brass fiber 2%-3%, Frication powder 3%-7%, aluminum oxide 2%-3%, synthetic graphite 4%-
5%, granular coke 4%-10%, ferrous sulfide 4%-7%, antimony trisulfide 2%-5%, potassium titanate 5%-10%, barite 30-
36%, nitrile rubber 3-11%, the nitrile rubber include micro- crosslinking acrylonitrile butadiene, half crosslinking acrylonitrile butadiene, full cross-linked nitrile
Rubber.
Further, micro- crosslinking acrylonitrile butadiene accounts for the 25%-50% of nitrile rubber total amount, and half crosslinking acrylonitrile butadiene is accounted for
The 15%-40% of nitrile rubber total amount, full crosslinking acrylonitrile butadiene accounts for the 20%-40% of nitrile rubber total amount.
Further, the flow distance of the phenolic resin is 25-30mm, and gelation time is 80-90S.Wherein, flow
Distance and gelation time are measured with reference to the method for appendix A 2 and A4 in GB/T 24411-2009 standards.
Further, the Fanglun slurry cake draw ratio is 55-70.
The fibre length of the mineral fibres is 0.45-0.70mm.
The fibre length of the brass fiber is 3.50-4.12mm.
The granularity of the synthetic graphite is 45-60 mesh.
The granular coke granularity is 36-45 mesh.
The granularity of the ferrous sulfide is 300-350 mesh.
The granularity of the barite is 325-400 mesh.
Further, the composition of the Frication powder is cashew nut oil modified phenolic resin, compared to phenolic resin,
Frication powder adds flexible group, makes it softer than phenolic resin, and the granularity of the Frication powder is 40 mesh.
Further, micro- crosslinking acrylonitrile butadiene particle diameter is 0.7-1.4mm, and Mooney viscosity is 54.5-60.8M, with reference to
Acrylonitrile mass fraction 27.8-32.4%.
The half crosslinking acrylonitrile butadiene particle diameter is 0.7-1.5mm, and Mooney viscosity is 131M, bound acrylonitrile mass fraction
32.2%.
The full crosslinking acrylonitrile butadiene particle diameter is 0.8-1.2mm, and Mooney viscosity is 150-170M, bound acrylonitrile quality point
Number 35.9-42.3%.Wherein, the Mooney viscosity in the present invention is measured with reference to the method in GB/T1723-93.
It is present invention also offers a kind of method of the disk type brake disc for preparing above-mentioned low brake torque variation including as follows
Step：
(1) three step batch mixing：First step batch mixing：Fanglun slurry cake, aluminum oxide, barite are added in homogenizer, are stirred
Mix；
Second step batch mixing：Phenolic resin, synthetic graphite, brass fiber, antimony trisulfide and ferrous sulfide are added to high-speed stirring
Mix in machine, stir；
3rd step batch mixing：Mineral fibres, Frication powder, granular coke, potassium titanate and nitrile rubber are added to high-speed stirred
In machine, stirring；
(2) it is hot-forming：Mixed raw material in step (1) is added in hot pressing die die cavity, is shakeout, be subsequently adding
Bedding material, shakeouts, hot-forming, the demoulding；
(3) it is heat-treated：Brake(-holder) block after step (2) demoulding is respectively placed in 170-180 DEG C, 180-200 DEG C of baking temperature
The lower baking of degree；
(4) it is ground：Brake(-holder) block after step (3) is heat-treated carries out grinding treatment using circle grinding machine；
(5) plastic-spraying：The non-working surface of the brake(-holder) block obtained to step (4) treatment carries out plastic-spraying treatment, obtains finished product.
Further, mixing time is 3-6 minutes, mixing time in second step batch mixing after first step batch mixing in step (1)
It is 6-9 minutes, mixing time is 4-7 minutes in the 3rd step batch mixing, is well mixed each raw material components.Three steps are used in the present invention
Batch mixing method, is more conducive to pre- shredding Fanglun slurry cake in first step batch mixing, helps aramid fiber to be well mixed with other raw material components；And
Second step batch mixing and the 3rd step batch mixing then contribute to being uniformly dispersed for fiber and granular coke.
Further, the mixing speed of homogenizer is 1000-3000r/min.
Further, in step (2), counted on the basis of the gross mass of the raw material components of bedding material, the bedding material includes
Following raw material components and its mass percent：Phenolic resin 13-17%, steel fibre 20-26%, half crosslinking acrylonitrile butadiene 3-7%,
Friction particles 8-12%, lime stone 28-32%, brass powder 6-8%, Fanglun slurry cake 2-5%.The bedding material mixing and stirring
After be then added in hot pressing die die cavity.Addition bedding material is to increase shear strength and having certain noise reduction.
Further, the granularity of the steel fibre is 80 mesh；The granularity of friction particles is 100 mesh；Limestone granularity is
325 mesh；The granularity of brass powder is 100 mesh.Wherein, phenolic resin, half crosslinking acrylonitrile butadiene, the Fanglun slurry cake for being used in bedding material
It is consistent with the correspondence in foregoing disk type brake disc raw material components.
Further, the gross mass of bedding material is added to account for raw material components and bedding material gross mass in step (1) in step (2)
6-9%.
Further, condition hot-forming in step (2) is；On-load pressure 300-650kg/cm2, hot pressing time 3-5
Minute, 160-170 DEG C of hot pressing temperature.
Further, the baking temperature in step (3) at 170-180 DEG C is toasted 1-2 hours, 180-200 DEG C of baking temperature
Degree lower baking 3-5 hours.
Further, in step (4) by brake(-holder) block grinding treatment to the depth of parallelism be ± 0.14mm, flatness for ±
0.10mm。
Further, plastic-spraying treatment is carried out to the non-working surface of brake(-holder) block using electrostatic spraying device in step (5), can be with
Prevent brake(-holder) block backboard from getting rusty, beautify brake(-holder) block outward appearance, certain high-temperature heat treatment effect is played to brake(-holder) block.Electrostatic is coated with
Standby rotating speed is 500-1000rpm, and temperature is 150-200 DEG C.
Nitrile rubber in the present invention using different crosslinking degrees prepares brake(-holder) block, and this improved brake(-holder) block can be effective
Reduce single braking procedure brake torque variation.Mooney characteristic and damping due to the PNBR of different crosslinking degrees
Performance is significantly different：Micro- cross-linked powder nitrile rubber is due to self-crosslinking low degree, and the temperature where damping loss peak is relatively low, tool
There is preferable damping characteristic under low temperature；Half cross-linked powder nitrile rubber is due to itself more medium crosslinking degree, damping loss
Temperature is raised where peak, with preferable damping characteristic under middle temperature；Full cross-linked powder nitrile rubber, because itself is more complete
Crosslinking degree, the temperature highest where damping loss peak, with preferable damping characteristic under high temperature；And this three is in each temperature
The lower damping of itself of degree is also different, and be there is also during processing and use nitrile rubber surface and phenolic resin or other
The cladding of material and reaction, effectively improve the angle of wetting and compatibility between nitrile rubber and other components.Therefore, by this three
Nitrile rubber compound use is planted, the characteristic of various powders nitrile rubber is efficiently utilized, various braking conditions, system is effectively stabilized
Noise and reduction brake torque variation under dynamic temperature.By adding composite powder nitrile rubber, the " viscous of brake block can be adjusted
Elasticity ", reduces brake block elastic modelling quantity, improves and the stickiness between brake disc.Therefore, it can entirety in lifting braking procedure
Stable friction factor, it is also possible to improve the stability of single braking procedure braking moment.
In summary, the present invention can effectively be dropped using the synergy of the PNBR of different crosslinking degrees
The brake torque variation of low brake(-holder) block, so as to shake possibility is braked in the induction for reducing brake(-holder) block, reduces brake noise
Incidence, effectively raise the production efficiency of brake(-holder) block and improve production environment.
Specific embodiment
Embodiments of the present invention are illustrated below by way of particular specific embodiment, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages of the invention and effect easily.The present invention can also be by different specific in addition
Implementation method is embodied or practiced, and the various details in this specification can also be based on different viewpoints and application, without the back of the body
Various modifications or alterations are carried out under spirit of the invention.It should be noted that, in the case where not conflicting, following examples and reality
Applying the feature in example can be mutually combined.
The conventional material that used raw material is well known to the skilled person in the embodiment of the present invention, can be by one
As commercial sources obtain.
Wherein, the flow distance of the phenolic resin is 25-30mm, and gelation time is 80-90S.Fanglun slurry cake major diameter
Than being 55-70, the fibre length of mineral fibres is 0.45-0.70mm, and the fibre length of brass fiber is 3.50-4.12mm, is closed
Granularity into graphite is 45-60 mesh, and granular coke granularity is 36-45 mesh, and the granularity of ferrous sulfide is 300-350 mesh, barite
Granularity be 325-400 mesh, the granularity of Frication powder is 40 mesh；Micro- crosslinking acrylonitrile butadiene particle diameter is 0.7-1.4mm, and Mooney viscosity is
54.5-60.8M, bound acrylonitrile mass fraction 27.8-32.4%；Half crosslinking acrylonitrile butadiene particle diameter is 0.7-1.5mm, and Mooney glues
It is 131M to spend, bound acrylonitrile mass fraction 32.2%；Full crosslinking acrylonitrile butadiene particle diameter is 0.8-1.2mm, and Mooney viscosity is
150-170M, bound acrylonitrile mass fraction 35.9-42.3%.
The proportioning of above-mentioned each raw material is different, may be constructed different embodiments, specific as follows：
Embodiment 1
The raw material components and mass percent of disk type brake disc：
Phenolic resin 14%, Fanglun slurry cake 8%, mineral fibres 6%, brass fiber 2%, Frication powder 7%, aluminum oxide 2%,
Synthetic graphite 4%, granular coke 7%, ferrous sulfide 4%, antimony trisulfide 2%, potassium titanate 7%, barite 30%, nitrile rubber
7%, wherein, nitrile rubber includes micro- crosslinking acrylonitrile butadiene, half crosslinking acrylonitrile butadiene, full crosslinking acrylonitrile butadiene；Micro- cross-linked nitrile
Rubber accounts for the 25% of nitrile rubber total amount, and half crosslinking acrylonitrile butadiene accounts for the 40% of nitrile rubber total amount, and full crosslinking acrylonitrile butadiene is accounted for
The 35% of nitrile rubber total amount.
Disc type brake piece preparation method comprises the following steps：
(1) three step batch mixing：First step batch mixing：Fanglun slurry cake, aluminum oxide and barite are put into homogenizer first,
Stirring 5 minutes；Second step batch mixing：Then phenolic resin, synthetic graphite, brass fiber, antimony trisulfide are put into homogenizer
And ferrous sulfide, stir 7 minutes；3rd step batch mixing：Mineral fibres, Frication powder, granular coke, titanium are put into homogenizer
Sour potassium and the butyl rubber for having matched, stir 6 minutes so that all raw materials are well mixed；
(2) it is hot-forming：The raw material that step (1) mixing is finished is first placed into hot pressing die die cavity, is then shakeout, then
Bedding material is put into hot pressing die die cavity, is shakeout, on-load pressure 300kg/cm2, hot pressing time 4.5 minutes, mould temperature in hot pressing
160 DEG C, 160 DEG C of middle mould temperature, lower 160 DEG C of mould temperature, the hot-forming rear demoulding；
The gross mass of bedding material is added to account for 8% of raw material components and bedding material gross mass in step (1)；
Wherein, bedding material includes following raw material components and its mass percent：Phenolic resin 17%, steel fibre 26%, half
Crosslinking acrylonitrile butadiene 7%, friction particles 8%, lime stone 32%, brass powder 6%, Fanglun slurry cake 4%；Using preceding well mixed；
(3) it is heat-treated：The baking temperature that 170 DEG C are initially positioned at after the brake(-holder) block demoulding is toasted 1 hour, is subsequently placed at 185 DEG C
Baking temperature under toast 3 hours；
(4) it is ground：Using circle grinding machine be ground (3) process after brake(-holder) block to the depth of parallelism be ± 0.14mm, flatness for ±
0.1mm；
(5) plastic-spraying：Plastic-spraying treatment is carried out to the non-working surface of brake(-holder) block using electrostatic spraying device, finished product, electrostatic is obtained
The rotating speed of spraying equipment is 1000rpm, and temperature is 200 DEG C.
Performance test：
(1) compression property, hardness test：
Brake(-holder) block finished product obtained in embodiment 1 is arranged on compression test and plastics Rockwell apparatus, is compressed
Characteristic, hardness test.Wherein, the standard of compression verification reference is ISO6310-2009, and compression is measured under different test pressures
Characteristic, test result is shown in Table 1.Hardness test reference standard be：GB5766-2007.The result of hardness test is：Hardness is average
It is 69.4HRR to be worth.
The normal temperature compressed experimental result of table 1
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
| Test load [bar] | 160 | 100 | 20 | 40 | 60 | 160 | 100 | 20 | 40 | 60 |
| Average value [μm] | 149.6 | 99.8 | 18.4 | 41.1 | 62.2 | 249.8 | 157.3 | 43.7 | 75.8 | 103.4 |
(2) DTV tests, bench test：
Obtaining brake(-holder) block to embodiment 1 carries out DTV tests, bench test：
DTV tests are measured using the static DTV testing machines that SUNBEE companies of South Korea produce, and experiment plate is from automobile 4S
The OE genuine disks of shop purchase.DTV values are 2.57 μm at braking surface concentric circles at brake disc large cylindrical 10mm before experiment；After experiment
Brake disc DTV values are 4.19 μm.
Platform is carried out to the brake(-holder) block that the present embodiment is obtained using the inertia braking bench test machine of simulating vehicle brakes
Frame test measurement.
Second decline chapters and sections is chosen in engine bench test program SAE J2522 tests, brake torque variation maximum is calculated
(BTV maximums)：36.41N.m.According to engine bench test program SAE J2707A test wear amounts, 2 are the results are shown in Table.According to stand
Test program SAE J2521 test noise result, the results are shown in Table 3.
The bench test SAE J2707A test wear amounts of table 2
The bench test SAE J2521 of table 3 test noise result
Embodiment 2
The raw material components and mass percent of disk type brake disc：
Phenolic resin 7%, Fanglun slurry cake 11%, mineral fibres 5%, brass fiber 2.5%, Frication powder 3%, aluminum oxide
3%, synthetic graphite 4.5%, granular coke 4%, ferrous sulfide 7%, antimony trisulfide 5%, potassium titanate 5%, barite 32%, butyronitrile
Rubber 11%, wherein, nitrile rubber includes micro- crosslinking acrylonitrile butadiene, half crosslinking acrylonitrile butadiene, full crosslinking acrylonitrile butadiene, micro- crosslinking
Nitrile rubber accounts for the 50% of nitrile rubber total amount, and half crosslinking acrylonitrile butadiene accounts for the 15% of nitrile rubber total amount, full cross-linked nitrile rubber
Glue accounts for the 35% of nitrile rubber total amount.
Disc type brake piece preparation method comprises the following steps：
(1) three step batch mixing：First step batch mixing：Fanglun slurry cake, aluminum oxide and barite are put into homogenizer first,
Stirring 6 minutes；Second step batch mixing：Then phenolic resin, synthetic graphite, brass fiber, antimony trisulfide are put into homogenizer
And ferrous sulfide, stir 6 minutes；3rd step batch mixing：Mineral fibres, Frication powder, granular coke, titanium are put into homogenizer
Sour potassium and butyl rubber, stir 4 minutes so that all raw materials are well mixed；
(2) it is hot-forming：The raw material that step (1) mixing is finished is first placed into hot pressing die die cavity, is then shakeout, then
Bedding material is put into hot pressing die die cavity, is shakeout, on-load pressure 500kg/cm2, hot pressing time 4 minutes, mould temperature 165 in hot pressing
DEG C, 160 DEG C of middle mould temperature, lower 160 DEG C of mould temperature, the hot-forming rear demoulding；The gross mass of bedding material is added to account for step (1) Central Plains
The 9% of material component and bedding material gross mass；
Wherein, bedding material includes following raw material components and its mass percent：Phenolic resin 17%, steel fibre 22%, half
Crosslinking acrylonitrile butadiene 6%, friction particles 12%, lime stone 30%, brass powder 8%, Fanglun slurry cake 5%；Using preceding well mixed；
(3) it is heat-treated：The baking temperature that 175 DEG C are initially positioned at after the brake(-holder) block demoulding is toasted 2 hours, is subsequently placed at 190 DEG C
Baking temperature under toast 4 hours；
(4) it is ground：Using circle grinding machine be ground (3) process after brake(-holder) block to the depth of parallelism be ± 0.14mm, flatness for ±
0.1mm；
(5) plastic-spraying：Plastic-spraying treatment is carried out to the non-working surface of brake(-holder) block using electrostatic spraying device, finished product, electrostatic is obtained
The rotating speed of spraying equipment is 800rpm, and temperature is 180 DEG C.
Performance test：
(1) compression property, hardness test：
The brake(-holder) block that embodiment 2 is obtained is compressed characteristic, hardness test, test condition is shown in embodiment 1.
Wherein, compression verification the results are shown in Table 4.Hardness average value is：76.3HRR.
The normal temperature compressed experimental result of table 4
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
| Test load [bar] | 160 | 100 | 20 | 40 | 60 | 160 | 100 | 20 | 40 | 60 |
| Average value [μm] | 125.4 | 83.6 | 16.1 | 35.4 | 53.1 | 211.2 | 140.1 | 35.0 | 69.5 | 95.0 |
(2) DTV tests, bench test：
Obtaining brake(-holder) block to embodiment 2 carries out DTV tests, bench test：
DTV tests are measured using the static DTV testing machines that SUNBEE companies of South Korea produce, and experiment plate is from automobile 4S
The OE genuine disks of shop purchase.DTV values are 1.88 μm at braking surface concentric circles at brake disc large cylindrical 10mm before experiment；After experiment
Brake disc DTV values are 4.84 μm.
Platform is carried out to the brake(-holder) block that the present embodiment is obtained using the inertia braking bench test machine of simulating vehicle brakes
Frame test measurement.
Second decline chapters and sections is chosen in engine bench test program SAE J2522 tests, brake torque variation maximum is calculated
(BTV maximums)：45.3N.m.According to engine bench test program SAE J2707A test wear amounts, 5 are the results are shown in Table.Surveyed according to stand
Examination program SAE J2521 test noise result, the results are shown in Table 6.
The bench test SAE J2707A test wear amounts of table 5
The bench test SAE J2521 of table 6 test noise result
Embodiment 3
The raw material components and mass percent of disk type brake disc：
Phenolic resin 5%, Fanglun slurry cake 10.5%, mineral fibres 5.5%, brass fiber 3%, Frication powder 5%, aluminum oxide
3%, synthetic graphite 5%, granular coke 10%, ferrous sulfide 6%, antimony trisulfide 3%, potassium titanate 10%, barite 31%, butyronitrile
Rubber 3%, wherein, nitrile rubber includes micro- crosslinking acrylonitrile butadiene, half crosslinking acrylonitrile butadiene, full crosslinking acrylonitrile butadiene；Micro- crosslinking
Nitrile rubber accounts for the 30% of nitrile rubber total amount, and half crosslinking acrylonitrile butadiene accounts for the 30% of nitrile rubber total amount, full cross-linked nitrile rubber
Glue accounts for the 40% of nitrile rubber total amount.
The processing method of the low brake torque variation disk type brake disc, comprises the following steps：
(1) three step batch mixing：First step batch mixing：Fanglun slurry cake, aluminum oxide and barite are put into homogenizer first,
Stirring 3 minutes；Second step batch mixing：Then phenolic resin, synthetic graphite, brass fiber, antimony trisulfide are put into homogenizer
And ferrous sulfide, stir 9 minutes；3rd step batch mixing：Mineral fibres, Frication powder, granular coke, titanium are put into homogenizer
Sour potassium and butyl rubber, stir 7 minutes so that all raw materials are well mixed；
(2) it is hot-forming：The raw material that step (1) mixing is finished is first placed into hot pressing die die cavity, is then shakeout, then
Bedding material is put into hot pressing die die cavity, is shakeout, on-load pressure 650kg/cm2, hot pressing time 5 minutes, mould temperature 170 in hot pressing
DEG C, 165 DEG C of middle mould temperature, lower 165 DEG C of mould temperature, the hot-forming rear demoulding；The gross mass of bedding material is added to account for step (1) Central Plains
The 6% of material component and bedding material gross mass；
Wherein, bedding material includes following raw material components and its mass percent：Phenolic resin 16%, steel fibre 24%, half
Crosslinking acrylonitrile butadiene 7%, friction particles 11%, lime stone 29%, brass powder 8%, Fanglun slurry cake 5%；Using preceding well mixed；
(3) it is heat-treated：The baking temperature that 180 DEG C are initially positioned at after the brake(-holder) block demoulding is toasted 2 hours, is subsequently placed at 200 DEG C
Baking temperature under toast 5 hours；
(4) it is ground：Using circle grinding machine be ground (3) process after brake(-holder) block to the depth of parallelism be ± 0.14mm, flatness for ±
0.1mm；
(5) plastic-spraying：Plastic-spraying treatment is carried out to the non-working surface of brake(-holder) block using electrostatic spraying device, finished product, electrostatic is obtained
The rotating speed of spraying equipment is 800rpm, and temperature is 180 DEG C.
Performance test：
(1) compression property, hardness test：
The brake(-holder) block that embodiment 3 is obtained is compressed characteristic, hardness test, test condition is shown in embodiment 1.
Wherein, compression verification the results are shown in Table 7.Hardness average value is：81.8HRR.
The normal temperature compressed experimental result of table 7
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
| Test load [bar] | 160 | 100 | 20 | 40 | 60 | 160 | 100 | 20 | 40 | 60 |
| Average value [μm] | 97.3 | 64.8 | 13.6 | 28.1 | 41.4 | 159.4 | 108.0 | 32.7 | 56.3 | 74.9 |
(2) DTV tests, bench test：
Obtaining brake(-holder) block to embodiment 3 carries out DTV tests, bench test：
DTV tests are measured using the static DTV testing machines that SUNBEE companies of South Korea produce, and experiment plate is from automobile 4S
The OE genuine disks of shop purchase.DTV values are 2.00 μm at braking surface concentric circles at brake disc large cylindrical 10mm before experiment；After experiment
Brake disc DTV values are 4.25 μm.
Platform is carried out to the brake(-holder) block that the present embodiment is obtained using the inertia braking bench test machine of simulating vehicle brakes
Frame test measurement.
Second decline chapters and sections is chosen in engine bench test program SAE J2522 tests, brake torque variation maximum is calculated
(BTV maximums)：50.8N.m.According to engine bench test program SAE J2707A test wear amounts, 8 are the results are shown in Table.Surveyed according to stand
Examination program SAE J2521 test noise result, the results are shown in Table 9.
The bench test SAE J2707A test wear amounts of table 8
The bench test SAE J2521 of table 9 test noise result
Embodiment 4
The raw material components and mass percent of disk type brake disc：
Phenolic resin 14%, Fanglun slurry cake 8%, mineral fibres 5%, brass fiber 2%, Frication powder 6%, aluminum oxide
2.5%, synthetic graphite 4.5%, granular coke 5%, ferrous sulfide 5%, antimony trisulfide 3%, potassium titanate 5%, barite 36%, fourth
Nitrile rubber 4%, wherein, nitrile rubber includes micro- crosslinking acrylonitrile butadiene, half crosslinking acrylonitrile butadiene, full crosslinking acrylonitrile butadiene；Micro- friendship
Connection nitrile rubber accounts for the 40% of nitrile rubber total amount, and half crosslinking acrylonitrile butadiene accounts for the 40% of nitrile rubber total amount, full cross-linked nitrile
Rubber accounts for the 20% of nitrile rubber total amount.
Disc type brake piece preparation method comprises the following steps：
(1) three step batch mixing：First step batch mixing：Fanglun slurry cake, aluminum oxide and barite are put into homogenizer first,
Stirring 6 minutes；Second step batch mixing：Then phenolic resin, synthetic graphite, brass fiber, antimony trisulfide are put into homogenizer
And ferrous sulfide, stir 6 minutes；3rd step batch mixing：Mineral fibres, Frication powder, granular coke, titanium are put into homogenizer
Sour potassium and butyl rubber, stir 4 minutes so that all raw materials are well mixed；
(2) it is hot-forming：The raw material that step (1) mixing is finished is first placed into hot pressing die die cavity, is then shakeout, then
Bedding material is put into hot pressing die die cavity, is shakeout, on-load pressure 600kg/cm2, hot pressing time 3 minutes, mould temperature 160 in hot pressing
DEG C, 160 DEG C of middle mould temperature, lower 160 DEG C of mould temperature, the hot-forming rear demoulding；The gross mass of bedding material is added to account for step (1) Central Plains
The 7% of material component and bedding material gross mass；
Wherein, bedding material includes following raw material components and its mass percent：Phenolic resin 15%, steel fibre 26%, half
Crosslinking acrylonitrile butadiene 4%, friction particles 12%, lime stone 30%, brass powder 8%, Fanglun slurry cake 5%；Using preceding well mixed；
(3) it is heat-treated：The baking temperature that 170 DEG C are initially positioned at after the brake(-holder) block demoulding is toasted 2 hours, is subsequently placed at 190 DEG C
Baking temperature under toast 4 hours；
(4) it is ground：Using circle grinding machine be ground (3) process after brake(-holder) block to the depth of parallelism be ± 0.14mm, flatness for ±
0.1mm；
(5) plastic-spraying：Plastic-spraying treatment is carried out to the non-working surface of brake(-holder) block using electrostatic spraying device, finished product, electrostatic is obtained
The rotating speed of spraying equipment is 500rpm, and temperature is 150 DEG C.
By above-described embodiment as can be seen that compare traditional ceramics brake block, the present invention provide based on composite powder fourth
The modified phenolic resin base ceramics disk type brake disc decrement of nitrile rubber is higher, and the DTV growths of induction brake disc are relatively low, in brake force
Square fluctuation aspect, brake(-holder) block wear extent and to showing outstanding performance in the wear extent of brake disc.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
The personage for knowing this technology all can carry out modifications and changes under without prejudice to spirit and scope of the invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete with institute under technological thought without departing from disclosed spirit such as
Into all equivalent modifications or change, should be covered by claim of the invention.
Claims (10)
1. a kind of disk type brake disc of low brake torque variation, it is characterised in that with the total of the raw material components of disk type brake disc
Counted on the basis of quality, the disk type brake disc includes that following raw material components and mass percent are：Phenolic resin 5%-14%, virtue
Synthetic fibre pulp 8-11%, mineral fibres 5%-6%, brass fiber 2%-3%, Frication powder 3%-7%, aluminum oxide 2%-3%, synthesis
Graphite 4%-5%, granular coke 4%-10%, ferrous sulfide 4%-7%, antimony trisulfide 2%-5%, potassium titanate 5%-10%, weight
Spar 30-36%, nitrile rubber 3-11%, the nitrile rubber include micro- crosslinking acrylonitrile butadiene, half crosslinking acrylonitrile butadiene, full friendship
Connection nitrile rubber.
2. disk type brake disc according to claim 1, it is characterised in that it is total that micro- crosslinking acrylonitrile butadiene accounts for nitrile rubber
The 25%-50% of amount, half crosslinking acrylonitrile butadiene accounts for the 15%-40% of nitrile rubber total amount, and full crosslinking acrylonitrile butadiene accounts for butyronitrile rubber
The 20%-40% of glue total amount.
3. disk type brake disc according to claim 1, it is characterised in that the flow distance of the phenolic resin is 25-
30mm, gelation time is 80-90S.
4. disk type brake disc according to claim 1, it is characterised in that micro- crosslinking acrylonitrile butadiene particle diameter is 0.7-
1.4mm, Mooney viscosity is 54.5-60.8M, bound acrylonitrile mass fraction 27.8%-32.4%.
5. disk type brake disc according to claim 1, it is characterised in that the half crosslinking acrylonitrile butadiene particle diameter is 0.7-
1.5mm, Mooney viscosity is 131M, bound acrylonitrile mass fraction 32.2%.
6. disk type brake disc according to claim 1, it is characterised in that the full crosslinking acrylonitrile butadiene particle diameter is 0.8-
1.2mm, Mooney viscosity is 150-170M, bound acrylonitrile mass fraction 35.9%-42.3%.
7. the method for preparing disk type brake disc described in any one of claim 1 to 6, it is characterised in that comprise the following steps：
(1) three step batch mixing：First step batch mixing：Fanglun slurry cake, aluminum oxide, barite are added in homogenizer, are stirred；
Second step batch mixing：Phenolic resin, synthetic graphite, brass fiber, antimony trisulfide and ferrous sulfide are added to homogenizer
In, stirring；
3rd step batch mixing：Mineral fibres, Frication powder, granular coke, potassium titanate and nitrile rubber are added in homogenizer,
Stirring；
(2) it is hot-forming：Mixed raw material in step (1) is added in hot pressing die die cavity, is shakeout, be subsequently adding bed course
Material, shakeouts, hot-forming, the demoulding；
(3) it is heat-treated：Under brake(-holder) block after step (2) demoulding is respectively placed in into 170-180 DEG C, 180-200 DEG C of baking temperature
Baking；
(4) it is ground：Brake(-holder) block after step (3) is heat-treated carries out grinding treatment using circle grinding machine；
(5) plastic-spraying：The non-working surface of the brake(-holder) block obtained to step (4) treatment carries out plastic-spraying treatment, obtains finished product.
8. preparation method as claimed in claim 7, it is characterised in that on the basis of the gross mass of the raw material components of bedding material
Meter, the bedding material includes following raw material components and its mass percent：Phenolic resin 13-17%, steel fibre 20-26%, half
Crosslinking acrylonitrile butadiene 3-7%, friction particles 8-12%, lime stone 28-32%, brass powder 6-8%, Fanglun slurry cake 2-5%.
9. preparation method according to claim 7, it is characterised in that add the gross mass of bedding material to account for step in step (2)
Suddenly in (1) raw material components and bedding material gross mass 6-9%.
10. preparation method according to claim 7, it is characterised in that hot-forming condition is in step (2)；Loading
Pressure 300-650kg/cm2, hot pressing time 3-5 minutes, 160-170 DEG C of hot pressing temperature.
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| CN110628171A (en) * | 2019-08-13 | 2019-12-31 | 北京天仁道和新材料有限公司 | Friction material, long-service-life friction lining and preparation method thereof |
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| CN110242691A (en) * | 2019-03-27 | 2019-09-17 | 山东金麒麟股份有限公司 | A kind of environmentally-friendly friction material and brake block and preparation method based on it |
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| CN110628171B (en) * | 2019-08-13 | 2022-12-09 | 北京天仁道和新材料有限公司 | Friction material, long-service-life friction lining and preparation method thereof |
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