CN110242691A - A kind of environmentally-friendly friction material and brake block and preparation method based on it - Google Patents
A kind of environmentally-friendly friction material and brake block and preparation method based on it Download PDFInfo
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- CN110242691A CN110242691A CN201910530620.9A CN201910530620A CN110242691A CN 110242691 A CN110242691 A CN 110242691A CN 201910530620 A CN201910530620 A CN 201910530620A CN 110242691 A CN110242691 A CN 110242691A
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- Prior art keywords
- friction material
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- friendly
- brake block
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- 239000002783 friction material Substances 0.000 title claims abstract description 99
- 238000002360 preparation method Methods 0.000 title claims abstract description 46
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 54
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 54
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000002994 raw material Substances 0.000 claims abstract description 31
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 27
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 27
- 239000011707 mineral Substances 0.000 claims abstract description 27
- 239000000835 fiber Substances 0.000 claims abstract description 25
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 23
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims abstract description 20
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 229920001971 elastomer Polymers 0.000 claims abstract description 16
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 229910001928 zirconium oxide Inorganic materials 0.000 claims abstract description 16
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 15
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 15
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 15
- 239000011236 particulate material Substances 0.000 claims abstract description 15
- 239000011701 zinc Substances 0.000 claims abstract description 12
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims description 64
- 238000002679 ablation Methods 0.000 claims description 23
- 241000357293 Leptobrama muelleri Species 0.000 claims description 22
- 238000003825 pressing Methods 0.000 claims description 22
- 238000012986 modification Methods 0.000 claims description 15
- 230000004048 modification Effects 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 12
- 238000005516 engineering process Methods 0.000 claims description 11
- 238000000748 compression moulding Methods 0.000 claims description 10
- 230000007613 environmental effect Effects 0.000 claims description 10
- 238000005303 weighing Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- -1 phenolic aldehyde Chemical class 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 238000001879 gelation Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 230000007423 decrease Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 239000010425 asbestos Substances 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 229910052895 riebeckite Inorganic materials 0.000 abstract description 2
- 229910001385 heavy metal Inorganic materials 0.000 abstract 1
- 239000005011 phenolic resin Substances 0.000 description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- 238000012545 processing Methods 0.000 description 9
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 239000002421 finishing Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 206010067868 Skin mass Diseases 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000013556 antirust agent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004088 simulation Methods 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
- 230000001052 transient effect Effects 0.000 description 1
- 239000013598 vector Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/12—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor of articles having inserts or reinforcements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/46—Measuring, controlling or regulating
-
- 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
-
- 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
-
- 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
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0023—Shaping by pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Braking Arrangements (AREA)
Abstract
The present invention provides a kind of environmentally-friendly friction material and based on its brake block and preparation method, the environmentally-friendly friction material is made of the raw material of following raw material components and mass percent: phenol-formaldehyde resin modified 3%-8%, steel fibre 9%-32%, mineral fibres 5%-20%, aramid fiber 1%-5%, graphite powder 10%-30%, zinc flake 1%-5%, barium sulfate 5%-20%, titanate 5%-15%, aluminium oxide 0.5%-3%, zirconium oxide 5%-15%, particle magnesia 2%-20%, calcium hydroxide 1%-5%, rubber-based particulate material 3%-15%.Brake block made of environmentally-friendly friction material of the present invention and preparation method is without asbestos, and not heavy metal components such as cupric, and the defects of service life is long, braking ability is stable, do not damage antithesis disk, falls ash less, efficiently solves service life reduction caused by not cupric existing in the prior art, brake efficiency decline, damage antithesis disk.
Description
Technical field
The present invention relates to automotive friction brake material technical fields, and in particular to a kind of environmentally-friendly friction material and based on its
Brake block and preparation method.
Background technique
In recent years, global automobile industry was developed rapidly.Brake block is as the key components and parts in automobile parts
One of, an important factor for not only decide the safety traffic and comfortable traveling of automobile, and influencing automobile industry energy conservation and environmental protection it
One.
Copper in automotive brake pads is contained as Washington state and California environmental regulation propose respectively
Amount is limited, and global brake block industry gradually develops to environmental protection without copper direction.
Since metallic copper plays the excellent characteristics such as high thermal conductivity, wear-resistant, stable coefficient of friction in friction material,
Still use red copper or brass as frictional property regulator in traditional automobile-used brake block friction material of commercialization.And without copper quotient
A series of problems, such as often will appear service life reduction, brake efficiency decline, damage antithesis disk with respect to cupric formula with vehicle formula.
For world market, since commercial vehicle load-carrying is far longer than small-sized household vehicle, make fully loaded commercial vehicle stop stop and
The thermal energy that the braking kinetic energy of generation is converted into equally is significantly larger than common small-sized household vehicle, uses SAE J2115 standard journey
When sequence bench simulation real steering vectors, disc surface transient temperature can achieve 500 DEG C it is even higher, therefore, for commercial vehicle
High-performance all has bigger difficulty without the research and development of copper Environment protection type friction material, therefore develops a kind of commerial vehicle that can be used in
No copper environmentally-friendly friction material is not 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, it the purpose of the present invention is to provide a kind of environmentally-friendly friction material and is based on
Its brake block and preparation method, to solve Cu-W ore deposit environment in existing friction material, the small-sized household vehicle without cupric rubs
The problem of pad service life is low, brake efficiency is poor, damage antithesis disk is not suitable for load-carrying biggish commercial vehicle.
To achieve the goals above or other purposes, the present invention is achieved by the following technical solutions:
A kind of environmentally-friendly friction material, it is characterised in that: be made of: changing the raw material of following raw material components and mass percent
Property phenolic resin 3%-8%, steel fibre 9%-32%, mineral fibres 5%-20%, aramid fiber 1%-5%, graphite powder 10%-
30%, zinc flake 1%-5%, barium sulfate 5%-20%, titanate 5%-15%, aluminium oxide 0.5%-3%, zirconium oxide 5%-
15%, particle magnesia 2%-20%, calcium hydroxide 1%-5%, rubber-based particulate material 3%-15%.
Preferably, the phenol-formaldehyde resin modified 4%-6%, steel fibre 15%-20%, mineral fibres 5%-12%, aramid fiber
Fiber 2%-4%, graphite powder 15%-20%, zinc flake 2%-4%, barium sulfate 8%-15%, titanate 8%-12%, oxygen
Change aluminium 1%-2%, zirconium oxide 6%-10%, particle magnesia 5%-15%, calcium hydroxide 2%-4%, rubber-based particulate material
5%-10%.
Preferably, the phenol-formaldehyde resin modified is one kind of Si modification phenolic resin or boron modified phenolic resin.
Further, the flow distance of the phenol-formaldehyde resin modified is 10-40mm, the gelation time under the conditions of 150 DEG C
For 40-150S.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 length of steel fiber is 0.5-1mm, and diameter is 40-120 μm；The mineral fibres draw ratio is 50-
80, length 0.5-1mm；The aramid fiber draw ratio is 40-90.
Preferably, the graphite powder is composed of the fine graphite powders of 200-300 mesh and the rubble ink powder of 5-20 mesh, wherein
The rubble ink powder and the mass ratio of the fine graphite powders are 1:5-1:2.
Preferably, the zinc flake is 325-500 mesh；The barium sulfate granularity is 325-500 mesh；The titanate is
One kind without titanate fiber sodium or sheet potassium titanate, granularity are 500-2000 mesh；The aluminium oxide is melting alpha-aluminium oxide, granularity
For 325-500 mesh；The zirconium oxide is fused zirconia, and granularity is 500-2000 mesh；The granularity of the particle magnesia is 40-
100 mesh；The granularity of the calcium hydroxide is 325-500 mesh.
Preferably, the rubber-based particulate material is that the combination of different raw material is obtained through mixing, broken, screening, the particle
Preparation can refer to patent CN106397878A.
The present invention also provides a kind of preparation methods of above-mentioned environmentally-friendly friction material comprising following steps；
(1) weighing: all raw material is weighed by the component and mass percent of environmentally-friendly friction material；
(2) first step mixing: aramid fiber, mineral fibres and graphite powder, barium sulfate is taken to be added first, in accordance with aforementioned proportion
In blender, mixing speed is 500 revs/min, mixing time 2-8 minutes；
(3) second step mixing: mixing speed is promoted to 3000 revs/min, is stirred 2-8 minutes；
(4) third step mixing: adding remaining raw material, and revolving speed is 3000 revs/min, stirs 5-10 minutes to get described
Environmentally-friendly friction material.
The present invention also provides a kind of brake blocks comprising made of steel back and the environmentally-friendly friction material described in any of the above-described
Friction plate.
The present invention also provides a kind of preparation methods of above-mentioned brake block, comprising the following steps:
(1) preparation of environmentally-friendly friction material；
(2) compression moulding: the environmentally-friendly friction material of preparation is compressed in steel back using die press technology for forming, press temperature
It is 140-170 DEG C, pressing pressure 400-650kg/cm2, pressing time 400-600；
(3) it toasts: applying the pressure of 3-8kg/cm2 to friction material charge level and steel back face using fixture, and at 180 DEG C -250
3-6h is toasted at a temperature of DEG C obtains the brake block.
Preferably, press temperature is 145-165 DEG C, pressing pressure 450-600kg/cm2, pressing time 500-
600s。
Preferably, pressure 4-6kg/cm2 when baking, temperature are 200-240 DEG C, baking time 4-6h.
Preferably, it also needs to be ground product after baking, slot, the processing such as chamfering.
Preferably, the preparation method also needs the friction material surface ablation processes to friction plate, ablation after step (3)
Temperature is 400-700 DEG C, and the ablation time is 60-180s.
Further, ablation temperature is 500-700 DEG C, time 90-150s.
Environmentally-friendly friction material of the present invention, relative to conventional commercial vehicle brake block friction material without asbestos, and the not weight such as cupric
Metal component meets the trend that global brake block industry environmental protection develops without copperization；Meanwhile utilizing environmentally-friendly friction material system of the present invention
At brake block have that the service life is long, braking ability is stable, do not damage antithesis disk, braking is comfortable, the advantages such as few that fall ash, effectively solve
The defects of service life reduction caused by not cupric existing in the prior art, brake efficiency decline, damage antithesis disk.
Wherein, which adds phenol-formaldehyde resin modified to improve the heat resistance of product entirety；Select long mineral fine simultaneously
Dimension, and first pass through and mix slowly in friction material preparation process, pre- shredding is carried out to aramid fiber and eliminate electrostatic, later
Revolving speed is improved, the raw material being added in the first step are sufficiently mixed；This stirring in batches can guarantee different structure shape
The mixing of the raw material of state (such as fiber, particle, powder etc.) and heterogeneity (organic and inorganic, metal) is sufficiently and uniform.This hair
Bright friction material preparation method forms uniform fibrous nodules in mixing process, and the abrasive dust generated in braking process is stored in fiber
In ball, reduce the release of dust, reduce and fall ash, while the damage to antithesis can be improved, reduces product and noise occurs
Probability；Select without titanate fiber sodium and sheet potassium titanate, there is the features such as heat-resisting, wear-resisting, chemical stability is good, environmentally friendly, can
To promote the abrasion resistance properties of product；Particle magnesia is used as preferably thermally conductive mineral material, no antithesis damage and offer stabilization
Increasing rub effect；Zinc flake relies on its biggish specific surface area, other than promoting the thermally conductive of product entirety, heat dissipation performance, also
It can be used as antirust agent, improve the antirust ability of product；The presence of rubber-based particulate material not only improves the heat dissipation of frictional interface
Ability, and the damping characteristic of product entirety is increased, promote braking comfort property.
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.
Si modification phenolic resin or boron well-known to those skilled in the art can be used in phenol-formaldehyde resin modified in the present invention
Phenol-formaldehyde resin modified, and can be obtained by general commercial sources.Preferably, using Si modification phenolic aldehyde tree in following all embodiments
Rouge, (125 DEG C) of flow distance of Si modification phenolic resin are 10-40mm, and (150 DEG C) of gelation time are 40-150s.Flowing away from
It is measured from gel time with reference to the method for appendix A 2 and A4 in GB/T 24411-2009 standard.
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, length of steel fiber is 0.5-1mm in following all embodiments, diameter is 40-120 μm.The mine
Fibres draw ratio is 50-80, length 0.5-1mm.The aramid fiber draw ratio is 40-90.
Graphite powder, zinc flake, barium sulfate, titanate, aluminium oxide, zirconium oxide, particle magnesia, hydrogen-oxygen in the present invention
Change calcium and be selected from this field conventional raw material, and can be obtained by general commercial sources.The titanate for no titanate fiber sodium or
One kind of sheet potassium titanate, preferably, using granularity in following embodiments is 500-2000 mesh without titanate fiber sodium.Preferably
Ground, the graphite powder chosen in following all embodiments is by the fine graphite powders of 200-300 mesh and the rubble ink powder group of 5-20 mesh
It closes, wherein the rubble ink powder and the mass ratio of the fine graphite powders are 1:5-1:2；The zinc flake is 325-500
Mesh；The barium sulfate granularity is 325-500 mesh；The aluminium oxide is melting alpha-aluminium oxide, and granularity is 325-500 mesh；The oxidation
Zirconium is fused zirconia, and granularity is 500-2000 mesh；The granularity of the particle magnesia is 40-100 mesh, the calcium hydroxide
Granularity is 325-500 mesh.
The rubber-based particulate material in the present invention is that the combination of different raw material is obtained through mixing, broken, screening, this
The preparation of grain can refer to patent CN106397878A.
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 one
A) component of environmentally-friendly friction material and mass percent formula:
Si modification phenolic resin 5%, steel fibre 20%, mineral fibres 10%, aramid fiber 3%, graphite powder 15%, sheet
Zinc powder 3%, barium sulfate 8%, titanate 8%, aluminium oxide 1%, zirconium oxide 8%, particle magnesia 10%, calcium hydroxide 2%, rubber
Gum base granulate material 7%.
B) preparation of environmentally-friendly friction material:
(1) weighing: all raw material is weighed by the component and mass percent of environmentally-friendly friction material；
(2) first step mixing: aramid fiber, mineral fibres and graphite powder, barium sulfate is taken to be added first, in accordance with aforementioned proportion
In 20L blender, mixing speed is 500 revs/min, mixing time 2-8 minutes；
(3) second step mixing: mixing speed is promoted to 3000 revs/min, is stirred 2-8 minutes；
(4) third step mixing: adding remaining raw material, and revolving speed is 3000 revs/min, stirs 5-10 minutes to get described
Environmentally-friendly friction material.
C) preparation of brake block
(1) compression moulding: the environmentally-friendly friction material of preparation is compressed in steel back using die press technology for forming, press temperature
It is 140 DEG C, pressing pressure 600kg/cm2, pressing time 500s；
(2) it toasts: 8kg/cm being applied to friction material charge level and steel back face using fixture2Pressure, and at a temperature of 200 DEG C
Baking 6h obtains the brake block；
(3) it modifies: brake block being ground, is slotted, the finishings processing such as chamfering；
(4) ablated surface: brake block friction material ablated surface is handled, 500 DEG C of ablation temperature, ablation time 150s.
Embodiment two
A) component of environmentally-friendly friction material and mass percent formula:
Si modification phenolic resin 8%, steel fibre 9%, mineral fibres 5%, aramid fiber 1%, graphite powder 30%, sheet zinc
Powder 1%, barium sulfate 5%, titanate 5%, aluminium oxide 3%, zirconium oxide 15%, particle magnesia 2%, calcium hydroxide 1%, rubber
Base particulate material 15%.
B) preparation of environmentally-friendly friction material:
(1) weighing: all raw material is weighed by the component and mass percent of environmentally-friendly friction material；
(2) first step mixing: aramid fiber, mineral fibres and graphite powder, barium sulfate is taken to be added first, in accordance with aforementioned proportion
In 20L blender, mixing speed is 500 revs/min, mixing time 8 minutes；
(3) second step mixing: mixing speed is promoted to 3000 revs/min, is stirred 2 minutes；
(4) third step mixing: adding remaining raw material, and revolving speed is 3000 revs/min, stirs 10 minutes to get the ring
Protect friction material.
C) preparation of brake block
(1) compression moulding: the environmentally-friendly friction material of preparation is compressed in steel back using die press technology for forming, press temperature
It is 145 DEG C, pressing pressure 650kg/cm2, pressing time 400s；
(2) it toasts: 5kg/cm being applied to friction material charge level and steel back face using fixture2Pressure, and at a temperature of 240 DEG C
Baking 5h obtains the brake block；
(3) it modifies: brake block being ground, is slotted, the finishings processing such as chamfering；
(4) ablated surface: brake block friction material ablated surface is handled, 650 DEG C of ablation temperature, ablation time 90s.
Embodiment three
A) component of environmentally-friendly friction material and mass percent formula:
Si modification phenolic resin 3%, steel fibre 32%, mineral fibres 5%, aramid fiber 5%, graphite powder 10%, sheet
Zinc powder 5%, barium sulfate 8.5%, titanate 10%, aluminium oxide 0.5%, zirconium oxide 8%, particle magnesia 5%, calcium hydroxide
5%, rubber-based particulate material 3%.
B) preparation of environmentally-friendly friction material:
(1) weighing: all raw material is weighed by the component and mass percent of environmentally-friendly friction material；
(2) first step mixing: aramid fiber, mineral fibres and graphite powder, barium sulfate is taken to be added first, in accordance with aforementioned proportion
In 20L blender, mixing speed is 500 revs/min, mixing time 8 minutes；
(3) second step mixing: mixing speed is promoted to 3000 revs/min, is stirred 2 minutes；
(4) third step mixing: adding remaining raw material, and revolving speed is 3000 revs/min, stirs 6 minutes to get the environmental protection
Friction material.
C) preparation of brake block
(1) compression moulding: the environmentally-friendly friction material of preparation is compressed in steel back using die press technology for forming, press temperature
It is 165 DEG C, pressing pressure 450kg/cm2, pressing time 600s；
(2) it toasts: 4kg/cm being applied to friction material charge level and steel back face using fixture2Pressure, and at a temperature of 180 DEG C
Baking 3h obtains the brake block；
(3) it modifies: brake block being ground, is slotted, the finishings processing such as chamfering；
(4) ablated surface: brake block friction material ablated surface is handled, 700 DEG C of ablation temperature, ablation time 60s.
Example IV
A) component of environmentally-friendly friction material and mass percent formula:
Si modification phenolic resin 4%, steel fibre 12.5%, mineral fibres 8.5%, aramid fiber 4%, graphite powder 12%,
Zinc flake 4%, barium sulfate 20%, titanate 15%, aluminium oxide 2%, zirconium oxide 10%, particle magnesia 2%, calcium hydroxide
3%, rubber-based particulate material 3%.
B) preparation of environmentally-friendly friction material:
(1) weighing: all raw material is weighed by the component and mass percent of environmentally-friendly friction material；
(2) first step mixing: aramid fiber, mineral fibres and graphite powder, barium sulfate is taken to be added first, in accordance with aforementioned proportion
In 20L blender, mixing speed is 500 revs/min, mixing time 5 minutes；
(3) second step mixing: mixing speed is promoted to 3000 revs/min, is stirred 3 minutes；
(4) third step mixing: adding remaining raw material, and revolving speed is 3000 revs/min, stirs 8 minutes to get the environmental protection
Friction material.
C) preparation of brake block
(1) compression moulding: the environmentally-friendly friction material of preparation is compressed in steel back using die press technology for forming, press temperature
It is 170 DEG C, pressing pressure 400kg/cm2, pressing time 500s；
(2) it toasts: 3kg/cm being applied to friction material charge level and steel back face using fixture2Pressure, and at a temperature of 200 DEG C
Baking 4h obtains the brake block；
(3) it modifies: brake block being ground, is slotted, the finishings processing such as chamfering；
(4) ablated surface: brake block friction material ablated surface is handled, 600 DEG C of ablation temperature, ablation time 100s.
Embodiment five
A) component of environmentally-friendly friction material and mass percent formula:
Si modification phenolic resin 6%, steel fibre 9%, mineral fibres 20%, aramid fiber 2%, graphite powder 11%, sheet
Zinc powder 2%, barium sulfate 6%, titanate 7.5%, aluminium oxide 1.5%, zirconium oxide 6%, particle magnesia 15%, calcium hydroxide
4%, rubber-based particulate material 10%.
B) preparation of environmentally-friendly friction material:
(1) weighing: all raw material is weighed by the component and mass percent of environmentally-friendly friction material；
(2) first step mixing: aramid fiber, mineral fibres and graphite powder, barium sulfate is taken to be added first, in accordance with aforementioned proportion
In 20L blender, mixing speed is 500 revs/min, mixing time 4 minutes；
(3) second step mixing: mixing speed is promoted to 3000 revs/min, is stirred 4 minutes；
(4) third step mixing: adding remaining raw material, and revolving speed is 3000 revs/min, stirs 5 minutes to get the environmental protection
Friction material.
C) preparation of brake block
(1) compression moulding: the environmentally-friendly friction material of preparation is compressed in steel back using die press technology for forming, press temperature
It is 150 DEG C, pressing pressure 500kg/cm2, pressing time 550s；
(2) it toasts: 6kg/cm being applied to friction material charge level and steel back face using fixture2Pressure, and at a temperature of 220 DEG C
Baking 5h obtains the brake block；
(3) it modifies: brake block being ground, is slotted, the finishings processing such as chamfering；
(4) ablated surface: brake block friction material ablated surface is handled, 400 DEG C of ablation temperature, ablation time 180s.
Embodiment six
A) component of environmentally-friendly friction material and mass percent formula:
Si modification phenolic resin 3%, steel fibre 15%, mineral fibres 12%, aramid fiber 1%, graphite powder 20%, sheet
Zinc powder 1%, barium sulfate 11.5%, titanate 5%, aluminium oxide 0.5%, zirconium oxide 5%, particle magnesia 20%, calcium hydroxide
1%, rubber-based particulate material 5%.
B) preparation of environmentally-friendly friction material:
(1) weighing: all raw material is weighed by the component and mass percent of environmentally-friendly friction material；
(2) first step mixing: aramid fiber, mineral fibres and graphite powder, barium sulfate is taken to be added first, in accordance with aforementioned proportion
In 20L blender, mixing speed is 500 revs/min, mixing time 5 minutes；
(3) second step mixing: mixing speed is promoted to 3000 revs/min, is stirred 4 minutes；
(4) third step mixing: adding remaining raw material, and revolving speed is 3000 revs/min, stirs 10 minutes to get the ring
Protect friction material.
C) preparation of brake block
(1) compression moulding: the environmentally-friendly friction material of preparation is compressed in steel back using die press technology for forming, press temperature
It is 155 DEG C, pressing pressure 550kg/cm2, pressing time 600s；
(2) it toasts: 7kg/cm being applied to friction material charge level and steel back face using fixture2Pressure, and at a temperature of 230 DEG C
Baking 3h obtains the brake block；
(3) it modifies: brake block being ground, is slotted, the finishings processing such as chamfering；
(4) ablated surface: brake block friction material ablated surface is handled, 700 DEG C of ablation temperature, ablation time 90s.
Embodiment seven
A) component of environmentally-friendly friction material and mass percent formula:
Si modification phenolic resin 4%, steel fibre 17.5%, mineral fibres 5%, aramid fiber 2%, graphite powder 10%, piece
Shape zinc powder 3%, barium sulfate 15%, titanate 12%, aluminium oxide 1.5%, zirconium oxide 12%, particle magnesia 5%, calcium hydroxide
2%, rubber-based particulate material 11%.
B) preparation of environmentally-friendly friction material:
(1) weighing: all raw material is weighed by the component and mass percent of environmentally-friendly friction material；
(2) first step mixing: aramid fiber, mineral fibres and graphite powder, barium sulfate is taken to be added first, in accordance with aforementioned proportion
In 20L blender, mixing speed is 500 revs/min, mixing time 3 minutes；
(3) second step mixing: mixing speed is promoted to 3000 revs/min, is stirred 5 minutes；
(4) third step mixing: adding remaining raw material, and revolving speed is 3000 revs/min, stirs 7 minutes to get the environmental protection
Friction material.
C) preparation of brake block
(1) compression moulding: the environmentally-friendly friction material of preparation is compressed in steel back using die press technology for forming, press temperature
It is 150 DEG C, pressing pressure 600kg/cm2, pressing time 500s；
(2) it toasts: 5kg/cm being applied to friction material charge level and steel back face using fixture2Pressure, and at a temperature of 210 DEG C
Baking 5h obtains the brake block；
(3) it modifies: brake block being ground, is slotted, the finishings processing such as chamfering；
(4) ablated surface: brake block friction material ablated surface is handled, 600 DEG C of ablation temperature, ablation time 120s.
Comparative example
A) component of cupric friction material and mass percent formula:
Red copper powder 5%, phenolic resin 4%, steel fibre 18%, mineral fibres 8%, aramid fiber 2.5%, graphite powder
15%, zinc flake 2%, barium sulfate 8%, titanate 9%, aluminium oxide 1.5%, zirconium oxide 8%, particle magnesia 10%, hydrogen
Calcium oxide 1%, rubber-based particulate material 8%.
B) preparation of cupric friction material:
(1) weighing: all raw material is weighed by the component and mass percent of friction material；
(2) first step mixing: aramid fiber, mineral fibres and graphite powder, barium sulfate is taken to be added first, in accordance with aforementioned proportion
In 20L blender, mixing speed is 500 revs/min, mixing time 3 minutes；
(3) second step mixing: mixing speed is promoted to 3000 revs/min, is stirred 5 minutes；
(4) third step mixing: adding remaining raw material, and revolving speed is 3000 revs/min, stirs 6 minutes to get the cupric
Friction material.
C) preparation of brake block
(1) compression moulding: the environmentally-friendly friction material of preparation is compressed in steel back using die press technology for forming, press temperature
It is 165 DEG C, pressing pressure 600kg/cm2, pressing time 600s；
(2) it toasts: 4kg/cm being applied to friction material charge level and steel back face using fixture2Pressure, and at a temperature of 210 DEG C
Baking 6h obtains the brake block；
(3) it modifies: brake block being ground, is slotted, the finishings processing such as chamfering；
(4) ablated surface: brake block friction material ablated surface is handled, 700 DEG C of ablation temperature, ablation time 60s.
Brake block made from above embodiments and cupric formula comparative example are subjected to Experimental Comparison, marked according to SAE J2115
Setting program carries out test stand performance and wear testing in standard, and test result shows such as Tables 1 and 2:
1 braking performance test of table
The test of 2 polishing machine of table
| Comparative example | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 | |
| Brake block thickness wears (mm) | 8.12 | 5.20 | 6.55 | 5.53 | 6.33 | 7.42 | 5.67 | 4.91 |
| Antithesis disc thickness wears (mm) | 0.153 | 0.082 | 0.106 | 0.078 | 0.092 | 0.109 | 0.098 | 0.079 |
Shown using brake block made of environmentally-friendly friction material of the present invention and preparation method not only above-mentioned test result
It can satisfy brake request, and brake block abrasion loss reduces, antithesis mill damage amount reduces, and extends brake block and mating plate
Service life, in addition, the invention environmental protection without copper and fall ash, noise, braking comfort, in terms of performance equally more
It is excellent.
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 (12)
1. a kind of environmentally-friendly friction material, it is characterised in that: be made of the raw material of following raw material components and mass percent: modified
Phenolic resin 3%-8%, steel fibre 9%-32%, mineral fibres 5%-20%, aramid fiber 1%-5%, graphite powder 10%-
30%, zinc flake 1%-5%, barium sulfate 5%-20%, titanate 5%-15%, aluminium oxide 0.5%-3%, zirconium oxide 5%-
15%, particle magnesia 2%-20%, calcium hydroxide 1%-5%, rubber-based particulate material 3%-15%.
2. environmentally-friendly friction material according to claim 1, which is characterized in that the phenol-formaldehyde resin modified 4%-6%, steel are fine
Tie up 15%-20%, mineral fibres 5%-12%, aramid fiber 2%-4%, graphite powder 15%-20%, zinc flake 2%-4%,
Barium sulfate 8%-15%, titanate 8%-12%, aluminium oxide 1%-2%, zirconium oxide 6%-10%, particle magnesia 5%-
15%, calcium hydroxide 2%-4%, rubber-based particulate material 5%-10%.
3. environmentally-friendly friction material according to claim 1, which is characterized in that the phenol-formaldehyde resin modified is Si modification phenolic aldehyde
One kind of resin or boron modified phenolic resin.
4. environmentally-friendly friction material according to claim 3, which is characterized in that the flow distance of the phenol-formaldehyde resin modified is
10-40mm, the gelation time under the conditions of 150 DEG C are 40-150S.
5. environmentally-friendly friction material according to claim 1, which is characterized in that the length of steel fiber is 0.5-1mm, diameter
It is 40-120 μm；The mineral fibres draw ratio is 50-80, length 0.5-1mm；The aramid fiber draw ratio is 40-90.
6. environmentally-friendly friction material according to claim 1, which is characterized in that the graphite powder by 200-300 mesh microlith
The rubble ink powder of ink powder and 5-20 mesh is composed, wherein the rubble ink powder and the mass ratio of the fine graphite powders are 1:5-1:
2。
7. environmentally-friendly friction material according to claim 1, which is characterized in that the zinc flake is 325-500 mesh；It is described
Barium sulfate granularity is 325-500 mesh；The one kind of the titanate for no titanate fiber sodium or sheet potassium titanate, granularity 500-
2000 mesh；The aluminium oxide is melting alpha-aluminium oxide, and granularity is 325-500 mesh；The zirconium oxide is fused zirconia, and granularity is
500-2000 mesh；The granularity of the particle magnesia is 40-100 mesh；The granularity of the calcium hydroxide is 325-500 mesh.
8. a kind of preparation method of any one of claim 1 to 7 environmentally-friendly friction material, which is characterized in that including following step
Suddenly；
(1) weighing: all raw material is weighed by the component and mass percent of environmentally-friendly friction material；
(2) first step mixing: aramid fiber, mineral fibres and graphite powder, barium sulfate addition is taken to stir first, in accordance with above-mentioned percentage
It mixes in machine, mixing speed is 500 revs/min, mixing time 2-8 minutes；
(3) second step mixing: mixing speed is promoted to 3000 revs/min, is stirred 2-8 minutes；
(4) third step mixing: adding remaining raw material, and revolving speed is 3000 revs/min, stirs 5-10 minutes to get the environmental protection
Friction material.
9. purposes of any one of claim 1 to 7 environmentally-friendly friction material in brake block.
10. a kind of brake block, including steel back and the friction plate made of any one of claim 1 to 7 environmentally-friendly friction material.
11. a kind of preparation method of brake block, which comprises the following steps:
(1) preparation of environmentally-friendly friction material；
(2) compression moulding: the environmentally-friendly friction material of preparation is compressed in steel back using die press technology for forming, press temperature is
140-170 DEG C, pressing pressure 400-650kg/cm2, pressing time 400-600S；
(3) it toasts: applying the pressure of 3-8kg/cm2 to friction material charge level and steel back face using fixture, and in 180 DEG C of -250 DEG C of temperature
The lower baking 3-6h of degree obtains the brake block.
12. preparation method according to claim 11, which is characterized in that the preparation method is after step (3) to friction
The friction material surface ablation processes of piece, ablation temperature are 400-700 DEG C, and the ablation time is 60-180S.
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| CN112940447A (en) * | 2021-01-29 | 2021-06-11 | 山东金麒麟股份有限公司 | Friction material for electric automobile, brake pad and preparation method |
| CN113586637A (en) * | 2021-07-02 | 2021-11-02 | 中铁隆昌铁路器材有限公司 | Synthetic brake pad for power-concentrated motor train unit vehicle and preparation method thereof |
| CN113685469A (en) * | 2020-05-19 | 2021-11-23 | 泰明顿服务责任有限公司 | Damping material for brake linings and method for producing a damping material |
| CN114251395A (en) * | 2021-12-31 | 2022-03-29 | 南通布莱派德汽车配件有限公司 | Preparation method of high-temperature-resistant wear-resistant brake pad |
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Application publication date: 20190917 |