CN103244586B - For the metal-based powder metallurgy brake pad and preparation method thereof of bullet train - Google Patents
For the metal-based powder metallurgy brake pad and preparation method thereof of bullet train Download PDFInfo
- Publication number
- CN103244586B CN103244586B CN201310186888.8A CN201310186888A CN103244586B CN 103244586 B CN103244586 B CN 103244586B CN 201310186888 A CN201310186888 A CN 201310186888A CN 103244586 B CN103244586 B CN 103244586B
- Authority
- CN
- China
- Prior art keywords
- weight percentage
- powder
- brake pad
- metal
- bullet train
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 19
- 239000002184 metal Substances 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000000843 powder Substances 0.000 claims abstract description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000470 constituent Substances 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 239000010439 graphite Substances 0.000 claims abstract description 9
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 7
- 229910052580 B4C Inorganic materials 0.000 claims abstract description 6
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 6
- 239000010431 corundum Substances 0.000 claims abstract description 6
- 239000000314 lubricant Substances 0.000 claims abstract description 6
- 239000011159 matrix material Substances 0.000 claims abstract description 6
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims abstract description 6
- 239000004576 sand Substances 0.000 claims abstract description 6
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000010937 tungsten Substances 0.000 claims abstract description 6
- 229920005989 resin Polymers 0.000 claims abstract description 5
- 239000011347 resin Substances 0.000 claims abstract description 5
- 238000005245 sintering Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 9
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 7
- 239000004917 carbon fiber Substances 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 241000209456 Plumbago Species 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- 229910000616 Ferromanganese Inorganic materials 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 239000003610 charcoal Substances 0.000 claims description 2
- 238000005229 chemical vapour deposition Methods 0.000 claims description 2
- 238000009835 boiling Methods 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- 240000003936 Plumbago auriculata Species 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 27
- 229910052742 iron Inorganic materials 0.000 description 9
- 239000002783 friction material Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 150000002505 iron Chemical class 0.000 description 2
- 238000004137 mechanical activation Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 101100346171 Arabidopsis thaliana MORC3 gene Proteins 0.000 description 1
- 101100346179 Arabidopsis thaliana MORC7 gene Proteins 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 101100168604 Candida albicans (strain SC5314 / ATCC MYA-2876) CRH12 gene Proteins 0.000 description 1
- 229910017755 Cu-Sn Inorganic materials 0.000 description 1
- 229910017927 Cu—Sn Inorganic materials 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 101100168607 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) UTR2 gene Proteins 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000005551 mechanical alloying Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Abstract
For the metal-based powder metallurgy brake pad and preparation method thereof of bullet train, this brake pad is made up of following raw material: matrix constituent element: copper powder, weight percentage 30 ~ 60%, iron powder, weight percentage 20 ~ 40%; Lubricant component: plumbago, weight percentage 8-20%, molybdenum disulfide, weight percentage 1-5%; Friction component: tungsten, weight percentage 1 ~ 3%, corundum, weight percentage 1 ~ 3%, silica sand, weight percentage 1 ~ 3%, boron carbide, weight percentage 1 ~ 3%; Constituent element is stablized in friction: 80 ~ 400 object Carbon fibe powder, and weight percentage is 1 ~ 4%; Binding material: resin, consumption is 1 ~ 5% of each constituent element weight sum.The present invention also comprises the described preparation method for the metal-based powder metallurgy brake pad of bullet train.The friction system friction factor that brake pad of the present invention and wheel are formed is high and stable, and friction factor fluctuation during braking is little, and reliability is high.
Description
Technical field
The present invention relates to a kind of metal-based powder metallurgy brake pad for bullet train and preparation method thereof, specifically, metal-based powder metallurgy brake pad relating to a kind of bullet train for speed 250km/h ~ more than 380km/h and preparation method thereof.
Background technique
At present, the brake pad that railroad train vehicle uses mainly contains two kinds: composite brake lining and powder metallurgy brake pad.The heat load of high-speed train braking is large, and temperature is high, and composite brake lining braking ability is unstable, and braking force is low, can not meet the requirement that bullet train runs.Powder metallurgy brake pad stable performance, there is the advantages such as good wear resistance, resistance to bond, thermal conductivity, porosity and functional reliability, powder metallurgy brake pad is applied to bullet train, high-power locomotive by the country such as Germany, Japan, France, Italy, Sweden, Canada, achieves good effect.The passenger train of China, the bullet train such as motor-car, CRH2, CRH3 all uses powder metallurgy brake pad.
Powder metallurgy brake pad divides iron-based and the large class of copper base two.
Present military service in speed per hour lower than a kind of iron-based brake shoe formula of 250km/h is, iron powder 45 ~ 60%, copper powder 7 ~ 8%, and graphite 10 ~ 15%, also containing some bronze powders and ceramic powder etc.; According to the observation, usually there is hot crack and darker polishing scratch in the antithesis surface of iron-based brake lining and wheel surface or brake disc surface, its reason may this iron-based friction material hardness and intensity higher, thermal conductivity is bad, simultaneously due to this iron-based brake lining and wheel or brake disc, to contain same metal iron a lot, its intermiscibility is good, so that brake lining and steel wheel or Brake drum produce localized hyperthermia to grinding, and adhesion and adhesive wear occur on surface; Cause friction surface temperature to raise, produce comparatively serious adhesive wear; Contact creep is trapped in friction surface after growing up, and also results in caused by abrasive wear.
CN1995436A discloses a kind of copper base particle reinforced friction material on July 11st, 2007, and this material is made up of the component of following mass percent: Cu:30 ~ 70%, Sn:4 ~ 11%, Al:1 ~ 15%, Fe:5 ~ 18%, Al
2o
3: 2 ~ 15%, SiO
2: 2 ~ 15%, ferrochrome: 0 ~ 15%, graphite: 5 ~ 20%, it is suitable for manufacturing speed per hour≤200km bullet train brake lining and wind-driven generator brake sheet.
CN101623759B discloses a kind of powdered metallurgical material for EMU brake pad on July 13rd, 2010, comprises following weight percent composition: Cu:55 ~ 70%, Sn:2 ~ 7%, Zn:2 ~ 6%, Fe:1 ~ 7%, Al
2o
3: 3 ~ 7%, SiO
2: 1 ~ 5%, MoO
3: 4 ~ 8%, carbon: 6 ~ 13%, also can add Ni:5 ~ 9%, W:4 ~ 7%, Pb:1 ~ 6%, and this material is suitable for the motor-car brake lining of manufacturing speed≤250km/h.
CN101602105B discloses a kind of copper-base powder metallurgy brake pad material on July 11st, 2007, adopts mechanical alloy powder Cu-Sn:10 ~ 80%, mechanical activation powder Ti-C:1.25 ~ 15%, Ni:0 ~ 10%, Cr:0 ~ 12%, Al
2o
3: 2 ~ 8%, graphite: 7.75 ~ 23%, the powder of previously prepared mechanical alloying and mechanical activation powder, form TiC through presintering, manufacturing process is very complicated.
This formula, based on copper, not containing iron powder, not too may mix with steel surface, but the moment of braking surface friction high temperature, be enough to that low melting point is melted mutually, soften, equally can produce adhesion and adhesive wear phenomenon.Along with the passing of active time, frictional behaviour decays, and friction material compares at the friction factor of state of wear with brand-new state, may reduce significantly.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of and improves metal-based powder metallurgy brake pad for bullet train of the friction and wear behavior of stable friction factor and friction system and preparation method thereof.This brake pad is high temperature resistant, heat fade is little, friction factor is high and stable, through stand test simulation train braking condition Verification, self wear rate of this brake lining is low, simultaneously low to the line wear rate of mating plate, fire damage and the wearing and tearing on mating plate surface are little, can ensure the applicability of braking system, reliability and Economy.
The technical solution adopted for the present invention to solve the technical problems is:
The metal-based powder metallurgy brake pad for bullet train of the present invention, be made up of following raw material:
Matrix constituent element: copper powder, weight percentage 30 ~ 60%, iron powder, weight percentage 20 ~ 40%; Lubricant component: plumbago, weight percentage 8-20%, molybdenum disulfide, weight percentage 1-5%; Friction component: tungsten, weight percentage 1 ~ 3%, corundum, weight percentage 1 ~ 3%, silica sand, weight percentage 1 ~ 3%, boron carbide, weight percentage 1 ~ 3%; Constituent element is stablized in friction: 80 ~ 400 object Carbon fibe powder, and weight percentage is 1 ~ 4%; Described each constituent element weight percentage sum is 100%;
Binding material: resin, consumption is 1 ~ 5% of described each constituent element weight sum.
Further, described copper powder can be electrolytic copper powder or copper reduction.
Further, described iron powder is the mixture of reducing iron powder and iron alloy powder, and described iron alloy powder can be the one in Cr iron powder, Ni iron powder, B iron powder or ferromanganese powder, and consumption accounts for 5 ~ 15% of iron powder weight.
Further, in described matrix constituent element, the weight percentage of copper powder is 40 ~ 50%, and the weight percentage of iron powder is 25 ~ 35%.
Further, in described lubricant component, the weight percentage of plumbago is 10-15%; The weight percentage of molybdenum disulfide is 2-4%.
Further, in described friction component, the weight percentage of tungsten is 1.5 ~ 2.5%, and the weight percentage of corundum is 1.5 ~ 2.5%, and the weight percentage of silica sand is 1.5 ~ 2.5%, and the weight percentage of boron carbide is 1.5 ~ 2.5%.
Further, described resin can be phenolic resin.
Described carbon fiber powder, preferably there is certain thickness chemical vapor deposition charcoal on its surface, and the thickness of deposit carbon is advisable with 5 ~ 20 microns; For ensureing density and the intensity of friction material, carbon fiber was preferably >=300 object carbon fibers.
The preparation method of the metal-based powder metallurgy brake pad for bullet train of the present invention, comprises the following steps;
(1) prepare burden: take each component raw material by predetermined weight per distribution ratio, for subsequent use;
(2) batch mixing: each component raw material that step (1) takes is placed in pebble mill mixing 4-10 hour, obtains mixture;
(3) die mould: carry out mould die mould to step (2) gained mixture, the pressure of die mould is 250-350MPa, ensures that the density of briquetting reaches 4.3-4.7g/cm
3, the pressed compact after compacting, lamination is put, ensure each layer base substrate number of packages or compression area identical;
(4) pressure sintering: step (3) gained base substrate is placed in sintering furnace, adopt hydraulic station and frock to pressurize to pressing blank, sintering pressure maintains 1 ~ 3MPa, leads to hydrogen shield during intensification, and sintering temperature controls at 950 ~ 1200 DEG C, is incubated 2 ~ 5 hours; Then hung out by the heating mantle of sintering furnace, buckle water cooling cover, bath cooling 3 ~ 6 hours, hang out water-cooling cover, product is come out of the stove.
The powder metallurgy brake pad for bullet train of the present invention passes through formulation optimization, after adding suitable friction stabilising agent short carbon fiber, the friction system that brake pad and steel disk form, the change of its friction coefficient retro-speed and surperficial braking energy density is little, with the wearing depth of brake lining or the impact of service time less, stable friction factor, the life-cycle braking ability high conformity of brake lining.
The stable friction performance of the powder metallurgy brake pad for bullet train of the present invention is mainly reflected in: the environmental sensitivity reducing friction system frictional behaviour, control the heat fade performance of friction material, take into account high friction factor and low wearing character, effectively control the inefficacy mechanism in advance of heavy wear and part.
The friction system friction factor that the brake pad utilizing material of the present invention to make and wheel are formed high (0.4) and stablizing; Little (the μ of friction factor fluctuation during braking
min/ μ
max>=0.5); Condition with environment and friction system changes the amplitude of variation of friction factor within 30%; Heat fade is little, to the life-span, needs the friction factor of the brake pad newer part changed reduction amplitude to be less than 26%; Brake pad part line wear rate is little, to the damage of mating plate and wearing and tearing very little, reliability is high, long service life, good combination property.Through taking the technological measure adding transition layer bed material, brake pad friction material is combined firmly with steel backing.
Accompanying drawing explanation
Fig. 1 is surface power density is 3213.35J/cm
3combined test curve;
Mm1000-III type testing machine carries out stopping brake test, test speed 6500r/min, test pressure 0.31MPa, test area 21.6cm
2, average moment 7.93Nm, maximum moment 9.61Nm, maximum power density 79.84W/cm
2, period of braking 25.73s, average friction coefficient 0.35, maximum friction coefficient 0.42;
Fig. 2 is surface power density is 5284.98J/cm
3combined test curve;
Test speed 8000r/min, test pressure 0.60MPa, test area 21.6cm
2, average moment 12.21Nm, maximum moment 14.14Nm, maximum power density 506.48W/cm
2, period of braking 22.33s, average friction coefficient 0.28, maximum friction coefficient 0.33;
In Fig. 1 and Fig. 2, abscissa is period of braking/s, and y coordinate is moment of torsion/× 100Nm respectively, pressure/× 2MPa, temperature/× 1000 DEG C, rotating speed/× 1000rpm, friction factor/× 0.8 and power/× 10000W;
The curve that the curve label 1,2,3,5,6 marked in figure is respectively moment of torsion, pressure, friction factor, rotating speed, power change with period of braking, this twice test does not take out temperature signal.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Embodiment
The metal-based powder metallurgy brake pad for bullet train of the present embodiment, be made up of following raw material:
Matrix constituent element: electrolytic copper powder, weight percentage 45%; Iron powder, weight percentage 30%(iron powder comprises reducing iron powder and iron alloy powder, and iron alloy powder used is ferromanganese powder, accounts for the 10wt% of iron powder);
Lubricant component: plumbago, weight percentage 12%; Molybdenum disulfide, weight percentage 3%;
Friction component: tungsten, weight percentage 2%; Corundum, weight percentage 2%; Silica sand, weight percentage 2%; Boron carbide, weight percentage 2%;
Constituent element is stablized in friction: Carbon fibe powder (cross 400 orders, there is the CVD coating of 6 microns on surface), and weight percentage is 2%;
Binding material: phenolic resin, consumption is 5% of described each constituent element weight sum.
Preparation method, comprises the following steps:
(1) prepare burden: take each component raw material by predetermined weight per distribution ratio, for subsequent use;
(2) batch mixing: each component raw material that step (1) takes is placed in pebble mill mixing 6 hours, obtains mixture;
(3) die mould: carry out mould die mould to step (2) gained mixture, the pressure of die mould is 300MPa, and the density of briquetting reaches 4.4g/cm
3, the pressed compact after compacting, lamination is put, ensure each layer base substrate number of packages or compression area identical;
(4) pressure sintering: step (3) gained base substrate is placed in sintering furnace, adopt hydraulic station and frock to pressurize to pressing blank, sintering pressure is 2MPa, leads to hydrogen shield during intensification, and sintering temperature is 1000 DEG C, is incubated 4 hours; Then hung out by the heating mantle of sintering furnace, buckle water cooling cover, bath cooling 4 hours, hang out water-cooling cover, product is come out of the stove.
The present embodiment gained brake lining is made friction test ring, MM-1000 III type friction wear testing machine carries out simulating brake test.
According to high-speed train braking condition, the design parameter of setting simulation test carries out testing same sample: on mm1000-III type testing machine, carry out stopping brake test, test speed 6500r/min, test pressure 0.31MPa, test area 21.6cm
3, average moment 7.93Nm, maximum moment 9.61Nm, maximum power density 79.84W/cm
2, period of braking 25.73s, energy density 3213.35J/cm
3, average friction coefficient 0.35, maximum friction coefficient 0.42; Test result curve as shown in Figure 1.
Test speed 8000r/min, test pressure 0.60MPa, test area 21.6cm
3, average moment 12.21Nm, maximum moment 14.14Nm, maximum power density 506.48W/cm
2, period of braking 22.33s, energy density 5284.98J/cm
3, average friction coefficient 0.28, maximum friction coefficient 0.33; Test result curve as shown in Figure 2.
Powder metallurgy brake pad of the present invention has the advantage of existing iron-based, copper base brake shoe concurrently, after adding carbon fiber friction stabilizer, except ensureing good thermal conductivity and intensity, stability and the moisture-resistant attenuation performance of friction factor can also be improved, thus improve friction catch brake lining to the applicability of high speed braking condition and the stability of mechanical braking sytem and reliability.
Claims (7)
1. for a metal-based powder metallurgy brake pad for bullet train, it is characterized in that, be made up of following raw material:
Matrix constituent element: copper powder, weight percentage 30 ~ 60%, iron powder, weight percentage 20 ~ 40%; Lubricant component: plumbago, weight percentage 8-20%, molybdenum disulfide, weight percentage 1-5%; Friction component: tungsten, weight percentage 1 ~ 3%, corundum, weight percentage 1 ~ 3%, silica sand, weight percentage 1 ~ 3%, boron carbide, weight percentage 1 ~ 3%; Constituent element is stablized in friction: 80 ~ 400 object carbon fiber powders, and weight percentage is 1 ~ 4%; Described each constituent element weight percentage sum is 100%;
Binding material: resin, consumption is 1 ~ 5% of described each constituent element weight sum;
There is the chemical vapor deposition charcoal of 5 ~ 20 micron thickness on the surface of described carbon fiber powder;
The preparation method of the described metal-based powder metallurgy brake pad for bullet train, comprises the following steps;
(1) prepare burden: take each component raw material by predetermined weight per distribution ratio, for subsequent use;
(2) batch mixing: each component raw material that step (1) takes is placed in pebble mill mixing 4-10 hour, obtains mixture;
(3) die mould: carry out mould die mould to step (2) gained mixture, the pressure of die mould is 250-350MPa, ensures that the density of briquetting reaches 4.3-4.7g/cm
3, the pressed compact after compacting, lamination is put, ensure each layer base substrate number of packages or compression area identical;
(4) pressure sintering: step (3) gained base substrate is placed in sintering furnace, adopt hydraulic station and frock to pressurize to pressing blank, sintering pressure maintains 1 ~ 3MPa, leads to hydrogen shield during intensification, and sintering temperature controls at 1000 ~ 1200 DEG C, is incubated 2 ~ 5 hours; Then hung out by the heating mantle of sintering furnace, buckle water cooling cover, bath cooling 3 ~ 6 hours, hang boiling water cooling cover, product is come out of the stove.
2. the metal-based powder metallurgy brake pad for bullet train according to claim 1, is characterized in that: described copper powder is electrolytic copper powder or copper reduction.
3. the metal-based powder metallurgy brake pad for bullet train according to claim 1 and 2, it is characterized in that: described iron powder is the mixture of reducing iron powder and iron alloy powder, described iron alloy powder is the one in Cr iron powder, Ni iron powder, B iron powder or ferromanganese powder, and consumption accounts for 5 ~ 15% of iron powder weight.
4. the metal-based powder metallurgy brake pad for bullet train according to claim 1 and 2, it is characterized in that: in described matrix constituent element, the weight percentage of copper powder is 40 ~ 50%, the weight percentage of iron powder is 25 ~ 35%.
5. the metal-based powder metallurgy brake pad for bullet train according to claim 1 and 2, is characterized in that: in described lubricant component, and the weight percentage of plumbago is 10-15%, and the weight percentage of molybdenum disulfide is 2-4%.
6. the metal-based powder metallurgy brake pad for bullet train according to claim 1 and 2, it is characterized in that: in described friction component, the weight percentage of tungsten is 1.5 ~ 2.5%, the weight percentage of corundum is 1.5 ~ 2.5%, the weight percentage of silica sand is 1.5 ~ 2.5%, and the weight percentage of boron carbide is 1.5 ~ 2.5%.
7. the metal-based powder metallurgy brake pad for bullet train according to claim 1 and 2, is characterized in that: described resin is phenolic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310186888.8A CN103244586B (en) | 2013-05-20 | 2013-05-20 | For the metal-based powder metallurgy brake pad and preparation method thereof of bullet train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310186888.8A CN103244586B (en) | 2013-05-20 | 2013-05-20 | For the metal-based powder metallurgy brake pad and preparation method thereof of bullet train |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103244586A CN103244586A (en) | 2013-08-14 |
| CN103244586B true CN103244586B (en) | 2015-08-05 |
Family
ID=48924335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310186888.8A Expired - Fee Related CN103244586B (en) | 2013-05-20 | 2013-05-20 | For the metal-based powder metallurgy brake pad and preparation method thereof of bullet train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103244586B (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384516B (en) * | 2014-10-30 | 2016-09-28 | 青岛玉兰祥商务服务有限公司 | The preparation method of the metallurgical powder brake material that a kind of bullet train uses |
| CN104384501B (en) * | 2014-10-30 | 2016-06-08 | 郑州航空工业管理学院 | A kind of iron-based powder metallurgy friction material and preparation method thereof |
| CN104525949B (en) * | 2014-12-30 | 2017-07-07 | 广东省材料与加工研究所 | A kind of copper-based composite friction material of high abrasion and preparation method thereof |
| CN104877629A (en) * | 2015-03-27 | 2015-09-02 | 北京优材百慕航空器材有限公司 | Powder metallurgy friction material for high-speed train brake pad and preparation method thereof |
| US10344817B2 (en) * | 2015-11-30 | 2019-07-09 | Hyundai Motor Company | Vehicle brake pad |
| CN105618766A (en) * | 2016-01-27 | 2016-06-01 | 北京瑞斯福高新科技股份有限公司 | Powder metallurgy brake lining friction block for high-speed train and preparation method thereof |
| CN106195066A (en) * | 2016-06-27 | 2016-12-07 | 杭州桑拉科技有限公司 | A kind of urban rail transit vehicles synthesis high abrasion brake block and preparation method thereof |
| CN106048446A (en) * | 2016-08-15 | 2016-10-26 | 合肥万向钱潮汽车零部件有限公司 | Automobile brake bottom plate |
| CN107142392B (en) * | 2017-04-26 | 2018-12-28 | 湖南博科瑞新材料有限责任公司 | A kind of friction materials for high-speed train braking and preparation method thereof, bullet train brake shoes and bullet train brake lining |
| CN109136721A (en) * | 2017-06-28 | 2019-01-04 | 宜兴市韦德同机械科技有限公司 | A kind of accurate filter driving gear material |
| CN110387212A (en) * | 2018-04-20 | 2019-10-29 | 西安交通大学 | Friction material composition and with its preparation bullet train brake pad and application |
| CN108679228A (en) * | 2018-05-16 | 2018-10-19 | 湖南鼎懋科技有限公司 | It is a kind of for the powder metallurgy sealing ring and preparation method of dynamic sealing and application |
| CN110056588B (en) * | 2019-03-27 | 2021-06-29 | 山东金麒麟股份有限公司 | Friction material, powder metallurgy brake pad and method for preparing friction block |
| CN110238380A (en) * | 2019-04-24 | 2019-09-17 | 中国科学院山西煤炭化学研究所 | A kind of graphene enhancing bullet train brake pad material and preparation method thereof |
| CN110284083B (en) * | 2019-06-21 | 2020-12-25 | 山东金麒麟股份有限公司 | Friction material, brake pad comprising friction material and preparation method of brake pad |
| CN111014692B (en) * | 2019-12-06 | 2022-03-15 | 北京天仁道和新材料有限公司 | Friction material and preparation method and application thereof |
| CN111570801B (en) * | 2020-05-12 | 2022-07-08 | 北京浦然轨道交通科技股份有限公司 | Powder metallurgy friction body, manufacturing method thereof and powder metallurgy brake pad |
| CN112264624A (en) * | 2020-09-29 | 2021-01-26 | 上海理工大学 | Powder metallurgy brake pad with low tungsten content and preparation method thereof |
| CN114210971A (en) * | 2021-12-10 | 2022-03-22 | 西安航空制动科技有限公司 | Copper-based powder metallurgy friction material for brake pad of motor train unit and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555918A (en) * | 2009-01-25 | 2009-10-14 | 瑞阳汽车零部件（仙桃）有限公司 | High-performance organic fibre brake pad |
| CN101839295A (en) * | 2010-05-31 | 2010-09-22 | 山东金麒麟集团有限公司 | High speed train powder metallurgy brake pad and preparation technology thereof |
| CN101956775A (en) * | 2010-05-20 | 2011-01-26 | 湖南博云汽车制动材料有限公司 | Resin-based yawing brake pad for wind-generated generator and preparation method thereof |
| CN102011043A (en) * | 2010-12-30 | 2011-04-13 | 北京瑞斯福科技有限公司 | Preparation method of powder metallurgy material for train brake pad |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006089340A (en) * | 2004-09-24 | 2006-04-06 | Toyota Motor Corp | Carbon composite material, brake material composed of carbon composite material, and method for producing carbon composite material |
-
2013
- 2013-05-20 CN CN201310186888.8A patent/CN103244586B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555918A (en) * | 2009-01-25 | 2009-10-14 | 瑞阳汽车零部件（仙桃）有限公司 | High-performance organic fibre brake pad |
| CN101956775A (en) * | 2010-05-20 | 2011-01-26 | 湖南博云汽车制动材料有限公司 | Resin-based yawing brake pad for wind-generated generator and preparation method thereof |
| CN101839295A (en) * | 2010-05-31 | 2010-09-22 | 山东金麒麟集团有限公司 | High speed train powder metallurgy brake pad and preparation technology thereof |
| CN102011043A (en) * | 2010-12-30 | 2011-04-13 | 北京瑞斯福科技有限公司 | Preparation method of powder metallurgy material for train brake pad |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103244586A (en) | 2013-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103244586B (en) | For the metal-based powder metallurgy brake pad and preparation method thereof of bullet train | |
| CN102011043B (en) | Preparation method of powder metallurgy material for train brake pad | |
| CN102102720B (en) | Ceramic/metallic double continuous phase composite material brake pad and preparation method thereof | |
| CN106399743B (en) | A kind of super simple constituent element powder metallurgy friction material of bullet train brake lining | |
| CN101813150B (en) | Ceramic fiber reinforced ceramic matrix automotive brake friction material and preparation method thereof | |
| CN105063459A (en) | Copper-based powder metallurgy friction material for high-speed train braking and preparation method thereof | |
| CN105506346A (en) | Powder metallurgy brake pad friction material and preparation method thereof | |
| CN101586636B (en) | Low ceramet group automobile brake pad and preparation method thereof | |
| CN106238722B (en) | A kind of brake pad with great friction coefficient and preparation method thereof | |
| CN107460362A (en) | A kind of High Speed Railway Trains brake pad material and preparation method thereof | |
| CN106979267A (en) | A kind of high-speed train powder metallurgy brake pad brake pad and preparation method | |
| CN102329980B (en) | Copper-based powder alloy brake material and preparation method for brake pad | |
| CN110184495A (en) | A kind of high-speed EMUs powder metallurgy friction material and preparation method thereof | |
| CN104877629A (en) | Powder metallurgy friction material for high-speed train brake pad and preparation method thereof | |
| CN102022466B (en) | Fiber-type dual metal powder metallurgy brake block | |
| CN101592203A (en) | A kind of semimetal ceramic base automobile brake pad and preparation method thereof | |
| CN105618766A (en) | Powder metallurgy brake lining friction block for high-speed train and preparation method thereof | |
| CN110253016A (en) | A kind of passenger train powder metallurgy friction material and preparation method thereof | |
| KR100872206B1 (en) | Method for manufacturing a friction member and a friction member made by the same | |
| CN107012358A (en) | A kind of brake pad powder metallurgy friction material and preparation technology | |
| CN109468487B (en) | Tungsten carbide reinforced copper-based powder metallurgy friction material and preparation method thereof | |
| CN109385586B (en) | Powder metallurgy friction material and preparation method of friction block | |
| CN110387212A (en) | Friction material composition and with its preparation bullet train brake pad and application | |
| CN115351272A (en) | Preparation method of copper-based powder metallurgy material for high-energy-load braking working condition | |
| CN100567761C (en) | Freight car compartment powder metallurgy brake block |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: HUNAN DINGMAO TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: JIANG JIANCHUN Effective date: 20150706 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150706 Address after: 410100 No. two, No. 27 South Road, Changsha economic and Technological Development Zone, Hunan, Changsha Applicant after: HUNAN DINGMAO TECHNOLOGY CO.,LTD. Address before: 410100 Hunan province Changsha Tianhua Changsha economic and Technological Development Zone North landscape people 20-1-101 Applicant before: Jiang Jianchun |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 410100 No. 27 South Second Road, Changsha Economic and Technological Development Zone, Changsha City, Hunan Province Patentee after: HUNAN INTERCITY TECHNOLOGY Co.,Ltd. Address before: 410100 No. 27 South Second Road, Changsha Economic and Technological Development Zone, Changsha City, Hunan Province Patentee before: HUNAN DINGMAO TECHNOLOGY CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 |