CN109929511A - A kind of no copper is without antimony environmentally-friendly friction material and friction plate and preparation method and purposes - Google Patents
A kind of no copper is without antimony environmentally-friendly friction material and friction plate and preparation method and purposes Download PDFInfo
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- CN109929511A CN109929511A CN201910239666.5A CN201910239666A CN109929511A CN 109929511 A CN109929511 A CN 109929511A CN 201910239666 A CN201910239666 A CN 201910239666A CN 109929511 A CN109929511 A CN 109929511A
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Abstract
The invention discloses a kind of no copper without antimony environmentally-friendly friction material, friction plate and preparation method and purposes, belongs to brake block technical field.The no copper is made of without antimony environmentally-friendly friction material the raw material of following raw material components and mass parts: 5-12 parts of phenolic resin, resin 2-9 parts organic-silicon-modified, 1-3 parts of aramid fiber, 3-8 parts of powder nbr, 5-12 parts of natural graphite, 5-12 parts of artificial graphite, 2-7 parts of carbon fiber, 8-15 parts of mineral fibres, 3-8 parts of silicon powder, 15-30 parts of SILICA FUME, 3-8 parts of cashew nut shell oil Frication powder, 3-8 parts of glass putty, 7-12 parts of aluminum alloy fiber, 8-12 parts of steel fibre, 5-9 parts of petroleum coke.The molding friction plate not pollutants such as cupric, antimony trisulfide are made, high temperature resistance, shock resistance, abrasion resistance properties and compression performance are excellent without antimony environmentally-friendly friction material without copper using the present invention.
Description
Technical field
The present invention relates to automotive friction brake material technical fields, and in particular to a kind of no copper without antimony environmentally-friendly friction material and
Friction plate and preparation method and purposes.
Background technique
With the rapid development of automobile industry, people are higher and higher to safety, the requirement of comfort of braking.Simultaneously
With the enhancing of people's environmental consciousness, the requirement to friction material environmental-protecting performance is also harsher, selects friction material raw material
Control is stringenter, and the selection to friction material raw material is no longer only to consider economy.Due to sedan-chair currently on the market
Generally contain copper, antimonous sulfide pollutant, the copper in braking process in brake(-holder) block in the raw material that automotive friction material uses
It is discharged into air in the form of the particle that rubs, finally enrichment is heavy metal-polluted to cause to ecological environment in soil or waters
Dye, Non-copper friction material become the development trend of friction material.And as the California in the U.S., State of Washington etc. take the lead in
Copper content does not allow more than 5% in friction material from proposing 2021,0.5% is not allowed more than from 2025, major automobile is raw
Business men responds to the call one after another, starts to research and develop Non-copper friction material.There is document to prove that antimonous sulfide can convert under the high temperature conditions
For antimony oxide, and U.S. part state is distinctly claimed in friction material and forbids containing antimony oxide.Antimony and copper belong to weight
Metallic element, antimonous sulfide is widely used due to as high temperature lubricating material in friction material, since copper has
Excellent heating conduction and high temperature lubricating, antimonous sulfide is a kind of high-temperature lubricant of better performances, so all the time
Research and development of the no copper without antimony friction material all have biggish difficulty, therefore develop a kind of Environment protection type friction material of the no copper without antimony not
It is only a kind of new development trend and a problem urgently to be resolved.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of not cuprics, antimonous sulfide
Environment protection type friction material, friction plate and brake block and friction plate preparation method, to solve copper, trithio in existing friction material
Change two antimony pollution environment, without the problem that the friction piece performance of cupric, antimonous sulfide is poor.
To achieve the goals above or other purposes, the present invention is achieved by the following technical solutions:
A kind of no copper is without antimony environmentally-friendly friction material, and the no copper is without antimony environmentally-friendly friction material by following raw material components and quality
The raw material composition of part: 5-12 parts of phenolic resin, resin 2-9 parts organic-silicon-modified, 1-3 parts of aramid fiber, 3-8 parts of powder nbr, day
Right 5-12 parts of graphite, 5-12 parts of artificial graphite, 2-7 parts of carbon fiber, 8-15 parts of mineral fibres, 3-8 parts of silicon powder, SILICA FUME 15-
30 parts, 3-8 parts of cashew nut shell oil Frication powder, 3-8 parts of glass putty, 7-12 parts of aluminum alloy fiber, 8-12 parts of steel fibre, 5-9 parts of petroleum coke.
Preferably, the flow distance of 125 DEG C of the phenolic resin is 40-70mm, and gelation time at 150 DEG C is 75-
125s, flow distance and gel time are measured with reference to the method for appendix A 2 and A4 in GB/T 24411-2009 standard.
Preferably, the flow distance of 125 DEG C of the organic-silicon-modified resin is 10-30mm, gelation time at 150 DEG C
For 60-90s, flow distance and gel time are measured with reference to the method for appendix A 2 and A4 in GB/T 24411-2009 standard
Preferably, the carbon fiber is surface modified pitch base carbon fibre.
Preferably, the aluminum alloy fiber is alumin(i)um zinc alloy fiber.
Preferably, the fibre length of the carbon fiber is 2-5mm, and the fibre length of the mineral fibres is 100-150 μm,
The fibre length of the aluminum alloy fiber is 0.4-0.8mm, and the fibre length of the steel fibre is 90-220 μm, the aramid fiber
Fibre length is 90-135mm.
Preferably, the powder nbr is 325 mesh, and the natural graphite is 325 mesh, and the artificial graphite is 30-100
Mesh, the silicon powder are 325-800 mesh, and the SILICA FUME is 325 mesh, and the cashew nut shell oil Frication powder is 40-325 mesh, described
Glass putty is 200 mesh, and the petroleum coke is 14-100 mesh.
The present invention also provides above-mentioned preparation method of the no copper without antimony environmentally-friendly friction material, comprising the following steps:
(1) sub-material: no copper without in antimony environmentally-friendly friction material formula raw material components and mass parts weigh all raw material；
(2) aramid fiber, natural graphite, artificial graphite, SILICA FUME: being first put into batch mixer by mixing, stirs 1-3 minutes, then
Surplus stock is added in batch mixer and stirs 5-7 minutes to get the no copper is arrived without antimony environmentally-friendly friction material.
A kind of purposes the present invention also provides above-mentioned no copper without antimony environmentally-friendly friction material in brake block.
Invention further provides a kind of brake blocks, including steel back and the friction made of above-mentioned environmentally-friendly friction material
Piece, the friction plate are mounted in the steel back.
The present invention also provides a kind of preparation methods of friction plate, comprising the following steps:
(1) preparation without copper without antimony environmentally-friendly friction material；
(2) preforming: will to be put into mold without copper without antimony environmentally-friendly friction material and be cold-pressed at 15-20Mpa, and form blank；
(3) hot pressing: blank is put into hot pressing die, and the temperature of mold is 140-160 DEG C, pressing pressure 12-
17Mpa；Hot pressing pressure maintaining for the first time 5-10s, it is subsequent primary at interval of 15s hot pressing, it is vented 5-10s every time, is vented 4-6 times, pressure maintaining
200-300s；
(5) it is heat-treated: from room temperature constant heatingrate to 180 DEG C, keeping the temperature 3-5h；From 180 DEG C of constant heatingrates to 200 DEG C, heat preservation
1-2h；From 200 DEG C of constant heatingrates to 250 DEG C, heat preservation 1-3h obtains the friction plate.
The present invention is without copper without antimony environmentally-friendly friction material, and the pollutants such as cupric, antimony trisulfide, do not make molding friction plate,
By the synergistic effect of the phenolic resin and the organic-silicon-modified resin, the high temperature resistance of friction plate is improved, simultaneously
The compression performance for improving friction plate improves braking comfort.By SILICA FUME as friction material void fillers, reduce
The global density of friction plate has excellent filling effect since SILICA FUME average-size is smaller, has friction plate excellent
Impact strength, wear resistance, and hardness is moderate, low in cost.Environmentally-friendly friction material of the present invention, which also passes through, selects surface to change
Property be chopped asphalt base carbon fiber and aluminum alloy fiber, the pyroconductivity under Lai Tigao friction plate hot conditions improves friction material
Intensity, and reduce coefficient of friction fluctuation.
The method of the present invention for preparing friction plate makes each component fully condense together, between performance each component
Synergistic effect has stable physical property, helps to improve the comfort of braking.
Specific embodiment
Illustrate embodiments of the present invention below by way of particular specific embodiment, those skilled in the art can be by this explanation
Other advantages and efficacy of the present invention can be easily understood for content disclosed by book.The present invention can also be by addition different specific
Embodiment is embodied or practiced, and the various details in this specification can also not carried on the back based on different viewpoints and application
From carrying out various modifications or alterations under spirit of the invention.It should be noted that in the absence of conflict, following embodiment and reality
The feature applied in example can be combined with each other.
Conventional phenol well-known to those skilled in the art can be used in phenolic resin and organic-silicon-modified resin in the present invention
Urea formaldehyde and organic-silicon-modified resin material, and can be obtained by general commercial sources.Preferably, phenol in following all embodiments
(125 DEG C) of flow distance of urea formaldehyde are 40-70mm, and (150 DEG C) of gelation time are 75-125s, 75 μm of average grain diameter, compare table
Area 0.901m3/ g, 94 DEG C of fusing point.The organic-silicon-modified resin, (125 DEG C) of flow distance are 10-30mm, gelation time
(150 DEG C) be 60-90s, 45 μm of average grain diameter, specific surface area 1.03m3/ g, 105 DEG C of fusing point.Flow distance and gel time ginseng
The method of appendix A 2 and A4 in GB/T 24411-2009 standard is examined to measure.
Fiber dimensious well-known to those skilled in the art can be used in various fibers in the present invention, and can be by general
Commercial sources obtain.Preferably, carbon fiber described in following all embodiments is surface modified pitch base carbon fibre, fibre length
For 2-5mm；The fibre length of mineral fibres is 100-150 μm；Aluminum alloy fiber is alumin(i)um zinc alloy fiber, fibre length 0.4-
0.8mm, the fibre length of steel fibre are 90-220 μm, and the fibre length of aramid fiber is 90-135mm.
Powder nbr, artificial graphite, natural graphite in the present invention, silicon powder, SILICA FUME, cashew nut shell oil Frication powder, tin
Powder, petroleum coke are also selected from this field conventional raw material, and can be obtained by general commercial sources.Preferably, following all implementations
The powder nbr chosen in example is 325 mesh, and natural graphite is 325 mesh, and artificial graphite is 30-100 mesh, silicon powder 325-800
Mesh, SILICA FUME are 325 mesh, and cashew nut shell oil Frication powder is 40-325 mesh, and glass putty is 200 mesh, and petroleum coke is 14-100 mesh.
It should be noted that it is all the same that other do not announce condition in the embodiment of the present invention other than the numerical value clearly provided.
Embodiment 1
A) component without copper without antimony environmentally-friendly friction material and mass parts formula:
12 parts of phenolic resin, 2 parts of Effect of Organosilicon-modified Phenol-formaldehyde Resin, 3 parts of aramid fiber, 3 parts of powder nbr, 8 parts of natural graphite, people
5 parts of graphite, 4 parts of surface modified pitch base carbon fibre, 8 parts of mineral fibres, 8 parts of silicon powder, 15 parts of SILICA FUME, cashew nut shell oil is made to rub
5 parts of crocus, 3 parts of glass putty, 9 parts of aluminum alloy fiber, 8 parts of steel fibre, 7 parts of petroleum coke.
B) preparation without copper without antimony environmentally-friendly friction material:
(1) weighing: component and mass parts formula according to no copper without antimony environmentally-friendly friction material weigh all raw material；
(2) aramid fiber, natural graphite, artificial graphite, SILICA FUME: being first put into ploughshare formula batch mixer by mixing, opens main paddle and stirs
It mixes 1-3 minutes, then surplus stock is added in batch mixer and opens main paddle and high speed reamer and stirs 5-7 minute to get the nothing is arrived
Copper is without antimony environmentally-friendly friction material.
C) preparation of friction plate
(1) preforming: no copper obtained above is put into mold without antimony environmentally-friendly friction material and is cold-pressed at 17Mpa, shape
At blank；
(2) hot pressing: blank is put into hot pressing die, and the temperature of upper, middle and lower mold is respectively 160 DEG C, 150 DEG C, 155
DEG C, pressing pressure 15Mpa；Hot pressing pressure maintaining for the first time starts 5s, is spaced 15s later, is vented 5s every time, is vented 6 times, pressure maintaining
300s；
(3) it is heat-treated: from room temperature constant heatingrate to 180 DEG C, keeping the temperature 3h；From 180 DEG C of constant heatingrates to 200 DEG C, 1h is kept the temperature；
From 200 DEG C of constant heatingrates to 250 DEG C, heat preservation 1h obtains friction plate A.
Embodiment 2
A) component without copper without antimony environmentally-friendly friction material and mass parts formula:
5 parts of phenolic resin, 9 parts of Effect of Organosilicon-modified Phenol-formaldehyde Resin, 1 part of aramid fiber, 5 parts of powder nbr, 5 parts of natural graphite, people
Make 5 parts of graphite, 2 parts of surface modified pitch base carbon fibre, 11 parts of mineral fibres, 3 parts of silicon powder, 22 parts of SILICA FUME, cashew nut shell oil
3 parts of Frication powder, 5 parts of glass putty, 7 parts of aluminum alloy fiber, 12 parts of steel fibre, 5 parts of petroleum coke.
B) preparation without copper without antimony environmentally-friendly friction material is with embodiment 1:
C) preparation of friction plate
(1) preforming: will to be put into mold without copper without antimony environmentally-friendly friction material and be cold-pressed at 15Mpa, and form blank；
(2) hot pressing: blank is put into hot pressing die, and the temperature of upper, middle and lower mold is respectively 160 DEG C, 150 DEG C, 155
DEG C, pressing pressure 12Mpa；The 10s of hot pressing pressure maintaining for the first time, is spaced 15s later, is vented 10s every time, is vented 4 times, pressure maintaining 300s；
(3) it is heat-treated: from room temperature constant heatingrate to 180 DEG C, keeping the temperature 3h；From 180 DEG C of constant heatingrates to 200 DEG C, 1h is kept the temperature；
From 200 DEG C of constant heatingrates to 250 DEG C, heat preservation 1h obtains friction plate B
Embodiment 3
A) component without copper without antimony environmentally-friendly friction material and mass parts formula:
6.5 parts of phenolic resin, 3.5 parts of Effect of Organosilicon-modified Phenol-formaldehyde Resin, 2 parts of aramid fiber, 8 parts of powder nbr, natural graphite 12
Part, 5 parts of artificial graphite, 2 parts of surface modified pitch base carbon fibre, 8 parts of mineral fibres, 3 parts of silicon powder, 15 parts of SILICA FUME, cashew nut
3 parts of shell oil drag powder, 3 parts of glass putty, 12 parts of aluminum alloy fiber, 8 parts of steel fibre, 9 parts of petroleum coke.
B) preparation without copper without antimony environmentally-friendly friction material is with embodiment 1:
C) preparation of friction plate
(1) preforming: will to be put into mold without copper without antimony environmentally-friendly friction material and be cold-pressed at 20Mpa, and form blank；
(2) hot pressing: blank is put into hot pressing die, and the temperature of upper, middle and lower mold is respectively 160 DEG C, 150 DEG C, 155
DEG C, pressing pressure 17Mpa；The 10s of hot pressing pressure maintaining for the first time, is spaced 15s later, is vented 10s every time, is vented 4 times, pressure maintaining 300s；
(3) it is heat-treated: from room temperature constant heatingrate to 180 DEG C, keeping the temperature 3h；From 180 DEG C of constant heatingrates to 200 DEG C, 1h is kept the temperature；
From 200 DEG C of constant heatingrates to 250 DEG C, heat preservation 1h obtains friction plate C.
Embodiment 4
A) component without copper without antimony environmentally-friendly friction material and mass parts formula:
5 parts of phenolic resin, 2 parts of Effect of Organosilicon-modified Phenol-formaldehyde Resin, 1 part of aramid fiber, 3 parts of powder nbr, 5 parts of natural graphite, people
Make 12 parts of graphite, 7 parts of surface modified pitch base carbon fibre, 9 parts of mineral fibres, 5 parts of silicon powder, 15 parts of SILICA FUME, cashew nut shell oil
8 parts of Frication powder, 8 parts of glass putty, 7 parts of aluminum alloy fiber, 8 parts of steel fibre, 5 parts of petroleum coke.
B) preparation without copper without antimony environmentally-friendly friction material is with embodiment 1:
C) preparation of friction plate
(1) preforming: will to be put into mold without copper without antimony environmentally-friendly friction material and be cold-pressed at 20Mpa, and form blank；
(2) hot pressing: blank is put into hot pressing die, and the temperature of upper, middle and lower mold is respectively 160 DEG C, 150 DEG C, 155
DEG C, pressing pressure 17Mpa；The 10s of hot pressing pressure maintaining for the first time, is spaced 15s later, is vented 10s every time, is vented 4 times, pressure maintaining 200s；
(3) it is heat-treated: from room temperature constant heatingrate to 180 DEG C, keeping the temperature 3h；From 180 DEG C of constant heatingrates to 200 DEG C, 1h is kept the temperature；
From 200 DEG C of constant heatingrates to 250 DEG C, heat preservation 1h obtains friction plate D.
Embodiment 5
A) component without copper without antimony environmentally-friendly friction material and mass parts formula:
5 parts of phenolic resin, 2 parts of Effect of Organosilicon-modified Phenol-formaldehyde Resin, 1 part of aramid fiber, 3 parts of powder nbr, 5 parts of natural graphite, people
Make 5 parts of graphite, 3 parts of surface modified pitch base carbon fibre, 15 parts of mineral fibres, 3 parts of silicon powder, 30 parts of SILICA FUME, cashew nut shell oil
3 parts of Frication powder, 3 parts of glass putty, 7 parts of aluminum alloy fiber, 10 parts of steel fibre, 5 parts of petroleum coke.
B) preparation without copper without antimony environmentally-friendly friction material is with embodiment 1:
C) preparation of friction plate
(1) preforming: will to be put into mold without copper without antimony environmentally-friendly friction material and be cold-pressed at 20Mpa, and form blank；
(2) hot pressing: blank is put into hot pressing die, and the temperature of upper, middle and lower mold is respectively 160 DEG C, 150 DEG C, 155
DEG C, pressing pressure 17Mpa；The 10s of hot pressing pressure maintaining for the first time, is spaced 15s later, is vented 10s every time, is vented 4 times, pressure maintaining 300s；
(3) it is heat-treated: from room temperature constant heatingrate to 180 DEG C, keeping the temperature 3h；From 180 DEG C of constant heatingrates to 200 DEG C, 1h is kept the temperature；
From 200 DEG C of constant heatingrates to 250 DEG C, heat preservation 1h obtains friction plate E.
Without copper without antimony environmentally-friendly friction material reference GB5763-2008 in the present invention, using GB5763-2008 " automobile system
Dynamic device liner " specified in be formulated the friction plate of manufacture provided by test method comparative examples 1 to embodiment 5 and rub
Abrasion and compression strain test.Frictional behaviour requires to be shown in Table 1, and compression strain requires to be shown in Table 2, and test result is shown in Table 3, table 4, table 5.
The requirement of 1 GB5763-2008 frictional behaviour of table
2 compression strain of table requirement
| The compression strain of 4 class liners at room temperature when be not more than 2%, 5% is not more than at 400 DEG C ± 10 DEG C |
3 frictional behaviour test result of table
4 friction and wear test result of table
5 compression strain test result of table
According to test result, the present invention it is obtained without copper without antimony environmental protection friction plate, stable friction performance fails low, resists
The performance that fails is good, and the abrasion loss of test of each stage is low；Normal temperature compressed strain is close with high temperature compressed strain value, brakes comfort
Height meets the development trend of Environment protection type friction material.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (10)
1. a kind of no copper is without antimony environmentally-friendly friction material, which is characterized in that the no copper is without antimony environmentally-friendly friction material by following raw material
The raw material of component and mass parts composition: 5-12 parts of phenolic resin, resin 2-9 parts organic-silicon-modified, 1-3 parts of aramid fiber, butyronitrile powder
3-8 parts last, 5-12 parts of natural graphite, 5-12 parts of artificial graphite, 2-7 parts of carbon fiber, 8-15 parts of mineral fibres, 3-8 parts of silicon powder,
15-30 parts of SILICA FUME, 3-8 parts of cashew nut shell oil Frication powder, 3-8 parts of glass putty, 7-12 parts of aluminum alloy fiber, 8-12 parts of steel fibre, stone
5-9 parts of oil coke.
2. no copper according to claim 1 is without antimony environmentally-friendly friction material, which is characterized in that the flowing of the phenolic resin away from
From for 40-70mm.
3. no copper according to claim 1 is without antimony environmentally-friendly friction material, which is characterized in that the organic-silicon-modified resin
Flow distance is 10-30mm.
4. no copper according to claim 1 is without antimony environmentally-friendly friction material, which is characterized in that the silicon powder is 325-800
Mesh.
5. no copper according to claim 1 is without antimony environmentally-friendly friction material, which is characterized in that the carbon fiber is modified for surface
Asphalt base carbon fiber.
6. no copper according to claim 1 is without antimony environmentally-friendly friction material, which is characterized in that the aluminum alloy fiber is aluminium zinc
Alloy fiber.
7. a kind of any one of claim 1 to 6 preparation method of the no copper without antimony environmentally-friendly friction material, which is characterized in that packet
Include following steps；
(1) weighing: all raw material is weighed according to raw material components described in any one of claims 1 to 6 and mass parts；
(2) aramid fiber, natural graphite, artificial graphite, SILICA FUME: being first put into batch mixer by mixing, stirs 1-3 minutes, then will remain
Remaining raw material, which is added in batch mixer, stirs 5-7 minutes to get the no copper is arrived without antimony environmentally-friendly friction material.
8. purposes of any one of claim 1 to the 6 no copper without antimony environmentally-friendly friction material in brake block.
9. a kind of brake block, including steel back and any one of claim 1 to the 6 no copper without made of antimony environmentally-friendly friction material
Friction plate.
10. a kind of preparation method of friction plate, which comprises the following steps:
(1) preparation without copper without antimony environmentally-friendly friction material；
(2) preforming: will to be put into mold without copper without antimony environmentally-friendly friction material and be cold-pressed at 15-20Mpa, and form blank；
(3) hot pressing: blank is put into hot pressing die, and the temperature of mold is 140-160 DEG C, pressing pressure 12-17Mpa；It is first
Secondary hot pressing pressure maintaining 5-10s, it is subsequent primary at interval of 15s hot pressing, it is vented 5-10s every time, is vented 4-6 times, pressure maintaining 200-300s；
(5) it is heat-treated: from room temperature constant heatingrate to 180 DEG C, keeping the temperature 3-5h；From 180 DEG C of constant heatingrates to 200 DEG C, 1-2h is kept the temperature；
From 200 DEG C of constant heatingrates to 250 DEG C, heat preservation 1-3h obtains the friction plate.
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| CN201910239666.5A CN109929511B (en) | 2019-03-27 | 2019-03-27 | Copper-free and antimony-free environment-friendly friction material, friction plate, preparation method and application |
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| CN201910239666.5A CN109929511B (en) | 2019-03-27 | 2019-03-27 | Copper-free and antimony-free environment-friendly friction material, friction plate, preparation method and application |
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| CN112745802A (en) * | 2021-01-29 | 2021-05-04 | 济南金麒麟刹车系统有限公司 | Copper-free NAO friction material, brake pad and preparation method |
| CN113757278A (en) * | 2020-06-05 | 2021-12-07 | 临沂盖氏机械有限公司 | Aluminum alloy slice brake pad replacing copper fiber and preparation method thereof |
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| CN113757278A (en) * | 2020-06-05 | 2021-12-07 | 临沂盖氏机械有限公司 | Aluminum alloy slice brake pad replacing copper fiber and preparation method thereof |
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| CN109929511B (en) | 2021-04-30 |
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