CN103819765B - The preparation method of friction material and lorry brake shoe for the heavy rail freight brake shoe of macro-axis - Google Patents
The preparation method of friction material and lorry brake shoe for the heavy rail freight brake shoe of macro-axis Download PDFInfo
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- CN103819765B CN103819765B CN201410052049.1A CN201410052049A CN103819765B CN 103819765 B CN103819765 B CN 103819765B CN 201410052049 A CN201410052049 A CN 201410052049A CN 103819765 B CN103819765 B CN 103819765B
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- 239000002783 friction material Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 238000005469 granulation Methods 0.000 claims abstract description 7
- 230000003179 granulation Effects 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 239000000835 fiber Substances 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 11
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 10
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 10
- 239000011707 mineral Substances 0.000 claims description 10
- 238000004513 sizing Methods 0.000 claims description 9
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 8
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 8
- 229920003987 resole Polymers 0.000 claims description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 6
- 229920000459 Nitrile rubber Polymers 0.000 claims description 6
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000011733 molybdenum Substances 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 5
- 239000000920 calcium hydroxide Substances 0.000 claims description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 5
- 239000006229 carbon black Substances 0.000 claims description 5
- 239000000395 magnesium oxide Substances 0.000 claims description 5
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 235000000177 Indigofera tinctoria Nutrition 0.000 claims description 4
- 229940007424 antimony trisulfide Drugs 0.000 claims description 4
- NVWBARWTDVQPJD-UHFFFAOYSA-N antimony(3+);trisulfide Chemical compound [S-2].[S-2].[S-2].[Sb+3].[Sb+3] NVWBARWTDVQPJD-UHFFFAOYSA-N 0.000 claims description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 4
- 239000010428 baryte Substances 0.000 claims description 4
- 229910052601 baryte Inorganic materials 0.000 claims description 4
- 238000005422 blasting Methods 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000006062 fragmentation reaction Methods 0.000 claims description 4
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 4
- 239000004312 hexamethylene tetramine Substances 0.000 claims description 4
- 238000005470 impregnation Methods 0.000 claims description 4
- 229940097275 indigo Drugs 0.000 claims description 4
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 239000002006 petroleum coke Substances 0.000 claims description 4
- 239000002893 slag Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 description 12
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- INJRKJPEYSAMPD-UHFFFAOYSA-N aluminum;silicic acid;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O INJRKJPEYSAMPD-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000010443 kyanite Substances 0.000 description 1
- 229910052850 kyanite Inorganic materials 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
The embodiment of the invention discloses the preparation method of a kind of macro-axis heavy rail freight brake shoe friction material and the heavy rail freight brake shoe of macro-axis, first extract each component raw material of friction material by corresponding percentage by weight; Then each component raw material is regulated and processed through banburying heating, banburying in meshing mixer, after discharge, after broken granulation is processed, obtain described friction material again. Utilize the method can obtain a kind of stable friction performance, and the good friction material of wearability, this friction material is manufactured brake component simultaneously, can meet the applied requirement of heavy axle load wagon brake shoe.
Description
Technical field
The present invention relates to railway equipment technical field, relate in particular to a kind of macro-axis heavy rail freight brake shoe friction material and goodsThe preparation method of car brake shoe.
Background technology
At present, in railway equipment technical field, heavy axle load wagon brake block requires the brake shoe with other rolling stock brakingsDifference, has proposed new requirement to its friction material and brake shoe manufacture. Taking railway freight-car as example, now use the system of railway freight-carEmploy brake shoe and mostly adopt the material taking resin as bonding system, be prepared from lock prepared by this material through hot-formingWatt under load-carrying 80T, 120 kilometers of conditions of speed per hour, its performance base instinct meets brake request, but railway freight-car heavy duty,In the situation of running at high speed, as railway freight-car all-up weight is greater than under 100 kilometers of conditions higher than 100 tons, speed per hour, in brakingTime, require braking torque larger, the heat resistance to brake shoe and frictional behaviour all have very high requirement.
Brake shoe prepared by the existing material taking resin as bonding system, have that frictional behaviour is stable not, friction piece easy fracture,Fall piece, damascene is serious, easily causes wheel cut, fire damage, be full of cracks to jeopardize traffic safety, and service life is short etc.Problem, cannot meet the brake request in the travelling of the heavy railway freight-car of existing heavy duty, high speed macro-axis, and therefore needs preparation a kind ofBe suitable for the brake request that heavy axle load wagon brake shoe meets heavily loaded railway freight-car.
Summary of the invention
The object of this invention is to provide the system of a kind of macro-axis heavy rail freight brake shoe friction material and the heavy rail freight brake shoe of macro-axisPreparation Method, utilizes the method can obtain a kind of stable friction performance, and the good friction material of wearability, and this rubs simultaneouslyWipe material and manufacture brake component, can meet the applied requirement of heavy axle load wagon brake shoe.
A preparation method for friction material for the heavy rail freight brake shoe of macro-axis, described preparation method comprises:
Extract each component raw material of friction material by following percentage by weight:
The resol, 0.4～1% of 6～12% acrylonitrile-butadiene rubber N41,1～4% butadiene-styrene rubber 1500,3～8%Insoluble sulfuy, 0.1～0.6% TMTD promoter, 0.1～0.6% hexamethylenetetramine, 2～6% carbon black,10～25% steel fibre, 5～15% mineral fibres, 8～18% barite, 1～4% carbon fiber, 8～18% indigo plantSpar, 7～14% magnesia, 2～6% petroleum coke, 2～8% calcium hydroxide, 1～4% molybdenum bisuphide, 1～5%Crystalline flake graphite, 1～4% Delanium, 1～4% micaceous iron oxide, 1～3% antimony trisulfide;
Described each component raw material is regulated and is processed through banburying heating, banburying in meshing mixer, after discharge again through fragmentationGranulation obtains described friction material after processing.
Described banburying heating, banburying regulate the process of processing to be specially:
By described each component raw material by the banburying program of setting in meshing mixer, carry out banburying heating 3～8 minutes,Banburying regulates 3～5 minutes, and temperature is controlled at 80～120 DEG C, pressure and is controlled at 2～12Mpa in banburying process.
Described broken granulation is processed and is specifically comprised:
Three grades of fragmentations, wherein, after one-level coarse crushing, the granularity of compound is less than 200 × 200mm; After secondary coarse crushing, compoundGranularity be less than 50 × 20mm; Three grades in small, broken bits after, the granularity of compound is less than 5mm.
The main performance index of described friction material Minerals fiber is:
Slag ball content is less than 0.2%, and fibre length is 300 ± 50 μ m, and fibre diameter is 3-8 μ m, loss on ignition≤0.3%,Water content≤0.1%;
In described friction material, the main performance index of resol is:
130 DEG C of gel time 8-12min, viscosity 1800-2500mPas 20 DEG C time, non-volatile content 73-135 DEG C time78％。
A preparation method for the heavy rail freight brake shoe of macro-axis,
The steel backing that meets the specification requirement of the heavy rail freight brake shoe of macro-axis is put into Caterpillar type shot blasting machine, to described steel backing surfaceEliminate rust and eliminate stress;
Steel backing after processing of rust removing is put into steeping vat, impregnation is carried out in described steel backing surface, and from described impregnationIn groove, take out dry;
Take friction material 2850g～3000g as prepared in preparation method as described in claim 1-4, pack the heavy railway of macro-axis intoIn lorry brake shoe compacting tool set, suppress, wherein pressing conditions is: pressure at expulsion 8MPa～11MPa, exhaust number of times 1～3Inferior, sizing pressing pressure is 60MPa～70MPa, and the press time is 40s～60s;
Brake shoe after compression process is packed in box curing oven and is cured, and in the time of 200 DEG C, insulation finishes, and natureCool in stove when temperature is 80 DEG C below, come out of the stove and obtain described macro-axis weight rail freight brake shoe.
As seen from the above technical solution provided by the invention, utilize the method can obtain a kind of stable friction performance,And the good friction material of wearability, this friction material is manufactured brake component simultaneously, can meet heavy axle load wagon brake shoeApplied requirement.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below by required use during embodiment is describedAccompanying drawing is briefly described, and apparently, the accompanying drawing in the following describes is only some embodiments of the present invention, forThose of ordinary skill in the art, is not paying under the prerequisite of creative work, can also obtain according to these accompanying drawingsOther accompanying drawings.
Fig. 1 is weighed rail freight brake shoe friction material preparation method schematic flow sheet by the embodiment of the present invention provides macro-axis;
The heavy rail freight brake shoe of the macro-axis preparation method schematic flow sheet that Fig. 2 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly and completelyDescribe, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment. Based onEmbodiments of the invention, those of ordinary skill in the art are not making obtain under creative work prerequisite every otherEmbodiment, belongs to protection scope of the present invention.
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail, is illustrated in figure 1 embodiment of the present invention instituteThe heavy rail freight brake shoe of macro-axis friction material preparation method is provided schematic flow sheet, and described in Fig. 1, preparation method comprises:
Step 11: each component raw material of extracting friction material by corresponding percentage by weight
In this step, the percentage by weight that each component raw material is concrete is:
The resol, 0.4～1% of 6～12% acrylonitrile-butadiene rubber N41,1～4% butadiene-styrene rubber 1500,3～8%Insoluble sulfuy, 0.1～0.6% TMTD promoter, 0.1～0.6% hexamethylenetetramine, 2～6% carbon black,10～25% steel fibre, 5～15% mineral fibres, 8～18% barite, 1～4% carbon fiber, 8～18% indigo plantSpar, 7～14% magnesia, 2～6% petroleum coke, 2～8% calcium hydroxide, 1～4% molybdenum bisuphide, 1～5%Crystalline flake graphite, 1～4% Delanium, 1～4% micaceous iron oxide, 1～3% antimony trisulfide.
Step 12: described each component raw material is regulated and processed through banburying heating, banburying in meshing mixer
In this step, described banburying heating, banburying regulate the process of processing to be specially:
By described each component raw material by the banburying program of setting in meshing mixer, carry out banburying heating 3～8 minutes,Banburying regulates 3～5 minutes, and temperature is controlled at 80～120 DEG C, pressure and is controlled at 2～12Mpa in banburying process.
Step 13: after compound is discharged, then obtain the heavy rail freight brake shoe of macro-axis friction material after broken granulation is processedMaterial.
In this step, described broken granulation is processed and is specifically comprised:
Three grades of fragmentations, wherein, after one-level coarse crushing, the granularity of compound is less than 200 × 200mm; After secondary coarse crushing, compoundGranularity be less than 50 × 20mm; Three grades in small, broken bits after, the granularity of compound is less than 5mm.
In addition, the main performance index of prepared friction material Minerals fiber is:
Slag ball content is less than 0.2%, and fibre length is 300 ± 50 μ m, and fibre diameter is 3-8 μ m, loss on ignition≤0.3%,Water content≤0.1%;
In prepared friction material, the main performance index of resol is:
130 DEG C of gel time 8-12min, viscosity 1800-2500mPas 20 DEG C time, non-volatile content 73-135 DEG C time78％。
In addition, based on the friction material of above-mentioned preparation, the embodiment of the present invention also provides a kind of macro-axis heavy rail freight brake shoePreparation method, the heavy rail freight brake shoe of the macro-axis preparation method schematic flow sheet that Fig. 2 provides for the embodiment of the present invention, figureDescribed in 2, preparation method comprises:
Step 21: the steel backing that meets the specification requirement of the heavy rail freight brake shoe of macro-axis is put into Caterpillar type shot blasting machine, to describedEliminate rust and eliminate stress in steel backing surface
Step 22: the steel backing after processing of rust removing is put into steeping vat, impregnation is carried out in described steel backing surface, and fromIn described steeping vat, take out dry
Step 23: take the prepared friction material 2850g～3000g of preparation method described above, pack the heavy railway of macro-axis intoIn lorry brake shoe compacting tool set, suppress
In this step, concrete pressing conditions is: pressure at expulsion 8MPa～11MPa, and exhaust number of times 1～3 time, sizing is pressedPressing pressure is 60MPa～70MPa, and the press time is 40s～60s.
Step 24: the brake shoe after compression process is packed in box curing oven and is cured processing, obtain institute after coming out of the stoveState the heavy rail freight brake shoe of macro-axis.
In this step, concrete solidification temperature and the time of solidifying processing see the following form shown in 1:
Table 1 solidification temperature and time
In the time of 200 DEG C, insulation finishes, and naturally cools in stove when temperature is below 80 DEG C, comes out of the stove and obtains described macro-axis weight ironRoad lorry brake shoe.
Above-mentioned friction material belongs to macromolecule trielement composite material, in material prescription with acrylonitrile-butadiene rubber, butadiene-styrene rubber, first rankSection phenolic resins is bonding system, taking mineral fibres, steel fibre as strengthening component, with filler carborundum, graphite, two sulphurChanging molybdenum etc. be frictional property regulator or compounding ingredient, like this by each component after banbury processing, obtain preparing brake shoe bodyPremix after forcing press is suppressed under normal temperature high voltage, after solidifying, can obtain a kind of stable friction performance, and wearabilityBetter, have the heavy rail freight brake shoe of macro-axis of good self-cleaning, in especially filling a prescription, bonding system and inorfil joinsClose, can play the effect that improves intensity and toughness.
With concrete example, the preparation process of above-mentioned friction material and brake shoe is elaborated below:
The implementation process of this example is divided into two parts, and Part I is the system of the heavy rail freight brake friction material of macro-axisStandby; Part II is the preparation of the heavy rail freight brake shoe of macro-axis.
At Part I, after first by weight percentage following each component being processed in banbury, form macromolecule composite woodMaterial, each component is specially:
The resol, 0.4～1% of 6～12% acrylonitrile-butadiene rubber N41,1～4% butadiene-styrene rubber 1500,3～8%Insoluble sulfuy, 0.1～0.6% TMTD promoter, 0.1～0.6% hexamethylenetetramine, 2～6% carbon black,10～25% steel fibre, 5～15% mineral fibres, 8～18% barite, 1～4% carbon fiber, 8～18% indigo plantSpar, 7～14% magnesia, 2～6% petroleum coke, 2～8% calcium hydroxide, 1～4% molybdenum bisuphide, 1～5%Crystalline flake graphite, 1～4% Delanium, 1～4% micaceous iron oxide, 1～3% antimony trisulfide.
Wherein, mineral fibres can adopt compound mineral fiber; Promoter can adopt TMTD.
Each component of then working good weighing is put in meshing mixer, opens banburying program, in banbury, entersThe following processing of row: banburying heating, banburying regulate. Wherein, banburying heating 3～8 minutes, banburying regulates 3～5 minutes,In banburying processing procedure, temperature is controlled at 80～120 DEG C, pressure and is controlled at 2～12Mpa.
Banburying obtains banburying sizing material after regulating, and after discharge banburying sizing material, banburying sizing material is carried out to break process, specifically can divideBe three grades of fragmentations, wherein, after one-level coarse crushing, the granularity of described compound be less than after 200 × 200mm, secondary coarse crushing,Make the granularity of compound be less than 50 × 20mm, after three grades of granulations in small, broken bits, make the granularity of compound be less than 5mm.
While utilizing the mode of three grades of broken granulations to ensure to suppress, material is even, makes bulk sizing material become after three grades of broken granulationsFor fine particle sizing material is brake friction material; In reality, the banburying processing procedure of meshing mixer can be by calculatingMachine is controlled automatically, sets in advance banburying program, obtains required friction material in the mode of automatically controlling.
In Part II, first carry out steel backing surface treatment, specifically will meet the heavy rail freight brake shoe of macro-axis specification and wantThe steel backing of asking is put into Caterpillar type shot blasting machine, is eliminated rust and is eliminated stress in steel backing surface, by what cross through surface derustingSteel backing is put into steeping vat, and impregnation is carried out in steel backing surface, takes out drying for standby from steeping vat.
Then, with precision be 0.5g electronic scale, take friction material 2850g prepared in above-mentioned Part I～3000g, packs in the heavy rail freight brake shoe of macro-axis compacting tool set and suppresses. Pressing conditions is: pressure at expulsion 8MPa～11MPa, exhaust number of times 1～3 time; Sizing pressing pressure is 60MPa～70MPa, and the press time is 40s～60s.
To pack in box curing oven and be cured through the brake shoe of compression process again, upper table 1 of concrete solidification temperature and timeShow, and finish 200 DEG C of insulations, power-off is lowered the temperature when in stove, temperature drops to below 80 DEG C naturally, comes out of the stove and obtains described macro-axisHeavy rail freight brake shoe.
In sum, in the embodiment of the present invention, pass through to adopt acrylonitrile-butadiene rubber, butadiene-styrene rubber, resol, steel fibreDimension, magnesia, mineral fibres, calcium hydroxide, kyanite, graphite, molybdenum bisuphide, carbon black, sulphur and promoter warpBanburying obtains a kind of medium friction coefficient material after processing; The heavy rail freight brake shoe of macro-axis of preparation, can meet heavy－duty, heightSpeed railway shipping brake block necessary requirement; There is stable frictional behaviour and good wearability; Can effectively suppress goldBelong to and inlay, crackle, fall the phenomenons such as piece; Have good impact resistance, good weatherability, can be for a long time for variations in temperatureIn large environment, be applicable to very much region wide, the area that regional disparity is large.
The above, be only preferably detailed description of the invention of the present invention, but protection scope of the present invention is not limited to this,Anyly be familiar with in technical scope that those skilled in the art disclose in the present invention the variation that can expect easily or replaceChange, within all should being encompassed in protection scope of the present invention. What therefore, protection scope of the present invention should be with claimsProtection domain is as the criterion.
Claims (4)
1. a preparation method for friction material for the heavy rail freight brake shoe of macro-axis, is characterized in that described preparation method's bagDraw together:
Extract each component raw material of friction material by following percentage by weight:
The resol, 0.4～1% of 6～12% acrylonitrile-butadiene rubber N41,1～4% butadiene-styrene rubber 1500,3～8%Insoluble sulfuy, 0.1～0.6% TMTD promoter, 0.1～0.6% hexamethylenetetramine, 2～6% carbon black,10～25% steel fibre, 5～15% mineral fibres, 8～18% barite, 1～4% carbon fiber, 8～18% indigo plantSpar, 7～14% magnesia, 2～6% petroleum coke, 2～8% calcium hydroxide, 1～4% molybdenum bisuphide, 1～5%Crystalline flake graphite, 1～4% Delanium, 1～4% micaceous iron oxide, 1～3% antimony trisulfide;
Wherein, the main performance index of described friction material Minerals fiber is:
Slag ball content is less than 0.2%, and fibre length is 300 ± 50 μ m, and fibre diameter is 3-8 μ m, loss on ignition≤0.3%,Water content≤0.1%;
In described friction material, the main performance index of resol is:
130 DEG C of gel time 8-12min, viscosity 1800-2500mPas 20 DEG C time, non-volatile content 73-135 DEG C time78％；
Described each component raw material is regulated and is processed through banburying heating, banburying in meshing mixer, after discharge again through fragmentationGranulation obtains described friction material after processing.
2. the preparation method of friction material for the heavy rail freight brake shoe of macro-axis according to claim 1, is characterized in that,Described banburying heating, banburying regulate the process of processing to be specially:
By described each component raw material by the banburying program of setting in meshing mixer, carry out banburying heating 3～8 minutes,Banburying regulates 3～5 minutes, and temperature is controlled at 80～120 DEG C, pressure and is controlled at 2～12Mpa in banburying process.
3. the preparation method of friction material for the heavy rail freight brake shoe of macro-axis according to claim 1, is characterized in that,Described broken granulation is processed and is specifically comprised:
Three grades of fragmentations, wherein, after one-level coarse crushing, the granularity of compound is less than 200 × 200mm; After secondary coarse crushing, compoundGranularity be less than 50 × 20mm; Three grades in small, broken bits after, the granularity of compound is less than 5mm.
4. a preparation method for the heavy rail freight brake shoe of macro-axis, is characterized in that,
The steel backing that meets the specification requirement of the heavy rail freight brake shoe of macro-axis is put into Caterpillar type shot blasting machine, to described steel backing surfaceEliminate rust and eliminate stress;
Steel backing after processing of rust removing is put into steeping vat, impregnation is carried out in described steel backing surface, and from described impregnationIn groove, take out dry;
Take the prepared friction material 2850g～3000g of preparation method as described in one of them as claim 1-3, pack into largeIn the heavy rail freight brake shoe of axle compacting tool set, suppress, wherein pressing conditions is: pressure at expulsion 8MPa～11MPa, exhaustNumber of times 1～3 time, sizing pressing pressure is 60MPa～70MPa, the press time is 40s～60s;
Brake shoe after compression process is packed in box curing oven and is cured, and in the time of 200 DEG C, insulation finishes, and natureCool in stove when temperature is 80 DEG C below, come out of the stove and obtain described macro-axis weight rail freight brake shoe.
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| CN201410052049.1A CN103819765B (en) | 2014-02-14 | 2014-02-14 | The preparation method of friction material and lorry brake shoe for the heavy rail freight brake shoe of macro-axis |
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| CN201410052049.1A CN103819765B (en) | 2014-02-14 | 2014-02-14 | The preparation method of friction material and lorry brake shoe for the heavy rail freight brake shoe of macro-axis |
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| CN104087245A (en) * | 2014-07-01 | 2014-10-08 | 北京瑞斯福高新科技股份有限公司 | Friction material for brake-shoe of heavy axle-load wagon and preparation method of friction material |
| CN104387634B (en) * | 2014-11-03 | 2016-04-13 | 无锡金鑫集团股份有限公司 | A kind of HGM-C type high friction composite brake shoe and preparation method thereof |
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| CN105400003A (en) * | 2015-12-02 | 2016-03-16 | 安徽创奇乐智能游乐设备有限公司 | Cold-resistant low temperature resistant rubber material |
| CN105504547B (en) * | 2016-01-12 | 2018-08-17 | 赵继洁 | Graphite-based composite high-molecular thermo electric material, preparation method and its usage |
| CN106279835A (en) * | 2016-08-16 | 2017-01-04 | 广西南宁胜祺安科技开发有限公司 | A kind of preparation method of automotive friction material |
| CN108864512B (en) * | 2018-07-05 | 2020-08-07 | 北京天宜上佳高新材料股份有限公司 | Preparation method of fiber reinforced resin-based friction material |
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