CN112996878A - Sintered friction material and method for producing sintered friction material - Google Patents
Sintered friction material and method for producing sintered friction material Download PDFInfo
- Publication number
- CN112996878A CN112996878A CN201980072171.6A CN201980072171A CN112996878A CN 112996878 A CN112996878 A CN 112996878A CN 201980072171 A CN201980072171 A CN 201980072171A CN 112996878 A CN112996878 A CN 112996878A
- Authority
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- China
- Prior art keywords
- titanate
- sintered friction
- friction material
- copper
- vol
- 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.)
- Granted
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- 239000002783 friction material Substances 0.000 title claims abstract description 102
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000007769 metal material Substances 0.000 claims abstract description 42
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 40
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052802 copper Inorganic materials 0.000 claims abstract description 37
- 239000010949 copper Substances 0.000 claims abstract description 37
- 239000011159 matrix material Substances 0.000 claims abstract description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 36
- 238000005245 sintering Methods 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 29
- 238000000465 moulding Methods 0.000 claims description 22
- 229910052742 iron Inorganic materials 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 13
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 10
- 239000010937 tungsten Substances 0.000 claims description 10
- 229910052721 tungsten Inorganic materials 0.000 claims description 10
- -1 alkali metal titanate Chemical class 0.000 claims description 4
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims description 4
- OBTSLRFPKIKXSZ-UHFFFAOYSA-N lithium potassium Chemical compound [Li].[K] OBTSLRFPKIKXSZ-UHFFFAOYSA-N 0.000 claims description 4
- SWHAQEYMVUEVNF-UHFFFAOYSA-N magnesium potassium Chemical compound [Mg].[K] SWHAQEYMVUEVNF-UHFFFAOYSA-N 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- GROMGGTZECPEKN-UHFFFAOYSA-N sodium metatitanate Chemical compound [Na+].[Na+].[O-][Ti](=O)O[Ti](=O)O[Ti]([O-])=O GROMGGTZECPEKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052783 alkali metal Inorganic materials 0.000 claims description 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 3
- WEUCVIBPSSMHJG-UHFFFAOYSA-N calcium titanate Chemical compound [O-2].[O-2].[O-2].[Ca+2].[Ti+4] WEUCVIBPSSMHJG-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 description 22
- 238000012360 testing method Methods 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 12
- 238000000227 grinding Methods 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 4
- 229910001928 zirconium oxide Inorganic materials 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- AOWKSNWVBZGMTJ-UHFFFAOYSA-N calcium titanate Chemical compound [Ca+2].[O-][Ti]([O-])=O AOWKSNWVBZGMTJ-UHFFFAOYSA-N 0.000 description 3
- 229910000423 chromium oxide Inorganic materials 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229910021383 artificial graphite Inorganic materials 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000013022 formulation composition Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 2
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 2
- 229910021382 natural graphite Inorganic materials 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy 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
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000007606 doctor blade method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000007582 slurry-cast process Methods 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- AFNRRBXCCXDRPS-UHFFFAOYSA-N tin(ii) sulfide Chemical compound [Sn]=S AFNRRBXCCXDRPS-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
Classifications
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- 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
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- F16D69/027—Compositions based on metals or inorganic oxides
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- C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
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- C04B35/645—Pressure sintering
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- C22C33/0207—Using a mixture of prealloyed powders or a master alloy
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- 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
- F16D49/00—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/604—Pressing at temperatures other than sintering temperatures
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/72—Products characterised by the absence or the low content of specific components, e.g. alkali metal free alumina ceramics
- C04B2235/725—Metal content
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- 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
- F16D2200/0004—Materials; Production methods therefor metallic
- F16D2200/0026—Non-ferro
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- 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
- F16D2200/0034—Materials; Production methods therefor non-metallic
- F16D2200/0039—Ceramics
- F16D2200/0043—Ceramic base, e.g. metal oxides or ceramic binder
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- 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
- F16D2200/0034—Materials; Production methods therefor non-metallic
- F16D2200/0039—Ceramics
- F16D2200/0047—Ceramic composite, e.g. C/C composite infiltrated with Si or B, or ceramic matrix infiltrated with metal
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- 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
- F16D2200/0082—Production methods therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/027—Compositions based on metals or inorganic oxides
- F16D69/028—Compositions based on metals or inorganic oxides containing fibres
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- Engineering & Computer Science (AREA)
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- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
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- Metallurgy (AREA)
- Braking Arrangements (AREA)
Abstract
The present invention relates to a sintered friction material, wherein the content of a copper component is 0.5 mass% or less, a metal material other than copper and titanate are contained as a matrix, and the content of the metal material other than copper is 10.0 to 34.0 vol%. The sintered friction material of the present invention is environmentally friendly and has sufficient friction performance even in a high-speed region.
Description
Technical Field
The present invention relates to a sintered friction material and a method for producing a sintered friction material.
Background
In recent years, it has been pointed out that abrasion powder generated when a friction material containing a copper component brakes contains a copper component, and may cause pollution to rivers, lakes, oceans, and the like. Therefore, the use of friction materials containing copper components is more and more restricted, and a friction material having excellent friction action even when the content of copper components is small is desired.
For example, the present applicant has proposed a friction material containing a ceramic matrix and a carbon material in patent document 1.
Documents of the prior art
Patent document
Patent document 1: japanese patent No. 6061592
Disclosure of Invention
Technical problem to be solved by the invention
However, in the sintered friction material described in patent document 1, although a friction test was performed at an initial speed of 50km/h, evaluation in a high speed region of the speed or higher was not investigated.
The present invention has been made in view of the above-described conventional circumstances, and an object thereof is to provide a sintered friction material which has a copper content of a predetermined amount or less and which has sufficient friction performance in a high-speed region as an environmentally friendly friction material.
Means for solving the problems
As a result of intensive studies, the present inventors have found that the above problems can be solved by using a metal material other than copper and a titanate as a matrix of a sintered friction material, and have completed the present invention.
That is, the present invention relates to the following <1> - <6 >.
[ 1] A sintered friction material which contains a copper component in an amount of 0.5 mass% or less, contains a metal material other than copper in an amount of 10.0 to 34.0 vol% and a titanate as a matrix.
<2> the sintered friction material as stated in <1>, wherein the titanate contains at least 1 salt selected from the group consisting of alkali metal titanate, alkaline earth metal titanate and complex titanate.
<3> the sintered friction material as stated in <1> or <2>, wherein the titanate contains at least 1 salt selected from the group consisting of potassium titanate, sodium titanate, calcium titanate, potassium lithium titanate and potassium magnesium titanate.
The sintered friction material as described in any of < 4 > to <1> -3 >, wherein the metal material other than copper contains an iron-based material, and the content of the iron-based material is 8.0 to 32.0 vol%.
The sintered friction material as described in any of < 5 > to <1> -4 >, wherein the metal material other than copper further contains tungsten, and the content of tungsten is 1.0 to 15.0 vol%.
<6> a method for manufacturing a sintered friction material, comprising: a mixing step of mixing a raw material containing a metal material other than copper and a titanate; a molding step of molding the raw materials mixed in the mixing step; and a sintering step of sintering the molded body molded in the molding step at 900 to 1300 ℃, wherein the sintered friction material comprises a matrix composed of the metal material other than copper and the titanate, and the content of the metal material other than copper is 10.0 to 34.0 vol%.
Effects of the invention
According to the present invention, a sintered friction material which is environmentally friendly and has sufficient friction performance even in a high-speed region can be provided.
Detailed Description
The present invention will be described in detail below, but these are merely examples of preferred embodiments, and the present invention is not limited to these.
[ sintered Friction Material ]
The sintered friction material is characterized in that the content of copper component is 0.5 mass% or less, a metal material other than copper and titanate are contained as a matrix, and the content of the metal material other than copper is 10.0-34.0 vol%.
< matrix >
In the present invention, the "matrix" means a component constituting the main skeleton of the friction material.
(metallic materials other than copper)
The sintered friction material of the present invention contains a metal material other than copper (hereinafter, may be simply referred to as "metal material") as a base in an amount of 10.0 to 34.0 vol%.
If the content of the metal material in the sintered friction material of the present invention is less than 10.0 vol%, the adhesion force between the metal materials between the sintered friction material and the mating material of the sintered friction material is reduced, and there is a possibility that a sufficient adhesion friction force cannot be obtained. Therefore, if the content of the metal material is less than 10.0 vol%, the sintered friction material of the present invention may not be provided with a sufficient friction coefficient μ in a high-speed region.
The content of the metal material is preferably 12.5 vol% or more, and more preferably 14.0 vol% or more, from the viewpoint of improving the friction performance.
If the content of the metal material is more than 34.0 vol%, the amount of the metal material transferred to the material to be blended in the sintered friction material may increase. If the amount of migration of the metal material increases, the strength of the sintered friction material of the present invention decreases, and the wear resistance may decrease.
From the viewpoint of improving the wear resistance, the content of the metal material is preferably 32.0 vol% or less, and more preferably 30.0 vol% or less.
Examples of the metal material include: iron-based materials, tungsten, tin alloys, titanium, aluminum, silicon, zinc, and Fe — Al intermetallic compounds, and the like. These may be used alone or in combination of two or more.
Among these metal materials, iron-based materials, tungsten, and tin are preferable from the viewpoint of improving the friction performance of the sintered friction material.
When the metal material contains an iron-based material, the content of the iron-based material in the sintered friction material of the present invention is preferably 8.0 to 32.0 vol%, more preferably 10.5 to 30.0 vol%, and still more preferably 12.0 to 30.0 vol%.
When the content of the iron-based material is 8.0 vol% or more, the friction performance of the sintered friction material of the present invention can be further improved. When the content of the iron-based material is 32.0 vol% or less, the decrease in wear resistance due to the migration of the iron-based material to the material to be blended in the sintered friction material can be suppressed.
Examples of the iron-based material include: iron, and alloys containing iron such as steel and stainless steel, and the like. These may be used alone or in combination of two or more.
When the metal material contains tungsten, the content of tungsten in the sintered friction material of the present invention is preferably 1.0 to 15.0 vol%, more preferably 2.0 to 13.0 vol%, and still more preferably 3.0 to 11.0 vol%.
If the tungsten content is 1.0 vol% or more, the wear resistance of the sintered friction material of the present invention can be improved. If the content of tungsten is 15.0 vol% or less, the strength of the sintered friction material of the present invention can be ensured.
When the metal material contains tin, the content of tin in the sintered friction material of the present invention is preferably 5.0 vol% or less, more preferably 4.0 vol% or less, and still more preferably 3.0 vol% or less.
When the content of tin is more than 5.0 vol%, the homogeneity of the sintered friction material of the present invention may be reduced.
Examples of the shape of the metal material include a powder shape and a fiber shape.
(titanate)
The sintered friction material of the present invention contains titanate as a matrix. Titanates are compounds having high wear resistance and the like, and contribute to improvement of wear resistance and the like of sintered friction materials.
For example, when a resin-based friction material contains titanate as a filler, the heating temperature for producing the friction material is low. Therefore, in the case where the friction material contains a resin as a matrix, titanate exists in the friction material in the same shape as that when mixed as a filler. On the other hand, in the sintered friction material of the present invention, titanate is in a state after sintering, and forms a matrix.
Titanates contained as fillers in friction materials and titanates contained as matrices in sintered friction materials can be clearly distinguished by SEM (Scanning Electron Microscope) observation and the like.
The content of titanate in the sintered friction material of the present invention is preferably 8.0 vol% or more, more preferably 10.0 vol% or more, and still more preferably 12.0 vol% or more.
If the content of titanate is 8.0 vol% or more, titanate is sintered when the raw material containing titanate is molded and sintered, and a matrix of the friction material can be formed.
The content of titanate is preferably 60.0 vol% or less, more preferably 58.0 vol% or less, and still more preferably 55.0 vol% or less.
When the content of titanate is 60.0 vol% or less, components necessary for a friction material such as a grinding material and a lubricating material can be sufficiently contained.
In addition, titanate has a lower density than metals such as iron. Therefore, the sintered friction material of the present invention has a lower density and a lighter weight than an iron-based sintered friction material using only a metal such as iron as a base.
Examples of titanates include: alkali metal titanates such as potassium titanate, lithium titanate, and sodium titanate; alkaline earth metal titanates such as calcium titanate, barium titanate and magnesium titanate; and complex titanates such as lithium potassium titanate and magnesium potassium titanate. These may be used alone or in combination of two or more.
Among them, potassium titanate, sodium titanate, calcium titanate, lithium potassium titanate, and magnesium potassium titanate are preferable from the viewpoint of heat resistance and abrasion resistance.
In view of sanitary working environment, a titanate having a so-called non-whisker (fiber) shape such as a spherical shape, a plate shape, a scale shape, or a columnar shape is preferable.
< grinding Material >
The sintered friction material of the present invention preferably contains a grinding material. By containing the abrasive material, desired friction performance can be imparted to the sintered friction material of the present invention.
The content of the grinding material in the sintered friction material of the present invention is preferably 25.0 vol% or less, more preferably 23.0 vol% or less, and still more preferably 20.0 vol% or less.
If the content of the grinding material is 25.0 vol% or less, the sintered friction material of the present invention is likely to be inhibited from having too high an attack on the mating material.
Examples of the grinding material include: chromium oxide, zirconium oxide, silicon carbide, magnesium oxide, aluminum oxide, silicon dioxide, zirconium oxide, zirconium silicate, ferroferric oxide (Fe)3O4) Chromite, and the like. These may be used alone or in combination of two or more.
Among them, from the viewpoint of balancing the grindability and the aggressibility to a mating material, chromium oxide, zirconium oxide, silicon carbide, magnesium oxide, and aluminum oxide are preferable, and chromium oxide, zirconium oxide, and silicon carbide are more preferable.
< lubricating material >
The sintered friction material of the present invention preferably contains a lubricating material. By containing the lubricating material, seizure with the material to be blended in the sintered friction material of the present invention can be prevented, and the wear resistance of the sintered friction material of the present invention can be improved.
The content of the lubricant in the sintered friction material of the present invention is preferably 20.0 to 65.0 vol%, more preferably 30.0 to 65.0 vol%, and still more preferably 35.0 to 65.0 vol%, from the viewpoint of wear resistance.
Examples of the lubricant include: artificial graphite, natural graphite, coke, molybdenum disulfide, tin sulfide, iron sulfide, zinc sulfide, and the like. These may be used alone or in combination of two or more.
Among them, artificial graphite, natural graphite, and molybdenum disulfide are preferable from the viewpoint of sinterability and wear resistance.
< other ingredients >
The sintered friction material of the present invention may contain the above-mentioned components, but may contain other components other than the above-mentioned components. Examples of the other components include: inorganic fillers such as barium sulfate, calcium carbonate, calcium hydroxide, vermiculite, mica, mullite, silicon nitride, zircon sand, and the like. These may be used alone or in combination of two or more.
< copper component >
From the viewpoint of reducing the environmental load, the content of the copper component in the sintered friction material of the present invention is 0.5 mass% or less in terms of copper element. In addition, the sintered friction material of the present invention preferably does not contain a copper component.
[ method for producing sintered Friction Material ]
The method for producing a sintered friction material of the present invention comprises:
a mixing step of mixing a raw material containing a metal material other than copper and a titanate;
a molding step of molding the raw materials mixed in the mixing step; and
a sintering step of sintering the molded body molded in the molding step at 900 to 1300 ℃,
in the sintered friction material, the metal material other than copper and the titanate constitute a matrix, and the content of the metal material other than copper is 10.0-34.0 vol%.
The mixing method used in the mixing step is not particularly limited as long as the raw materials are uniformly mixed, and a known method can be used. For example, the following method may be used: an appropriate amount of an organic solvent is added to the raw materials as needed, and wet mixing is performed using a rotary mixer or the like to uniformly disperse the raw materials.
Next, a molding step is performed to mold the raw materials mixed in the mixing step.
In the molding step, a dry molding method such as uniaxial press molding or CIP molding (cold isostatic press molding) can be suitably used; plastic molding methods such as injection molding and extrusion molding; casting molding methods such as slurry casting, pressure casting, and spin casting; band forming methods such as a doctor blade method; cold stamping, and the like. The above-mentioned molding methods may be used alone, or 2 or more kinds may be used in combination.
From the viewpoint of moldability, the molding surface pressure in the molding step is preferably 300 to 900 MPa.
Next, a sintering step is performed to sinter the molded body molded in the molding step.
In the sintering step, the molded body can be sintered by a hot pressing method, an atmosphere sintering method, a reaction sintering method, an atmospheric pressure sintering method, a thermal plasma sintering method, or the like.
The sintering temperature in the sintering step is 900 to 1300 ℃, preferably 900 to 1250 ℃, and more preferably 900 to 1200 ℃. If the sintering temperature is lower than 900 ℃, the substrate may become brittle. If the sintering temperature is higher than 1300 ℃, the raw material may start to melt.
From the viewpoint of sinterability, the holding time in the sintering step is preferably 30 to 180 minutes.
In the sintering step, it is preferable to sinter the molded article while applying pressure thereto. The sintering surface pressure at this time is preferably 1 to 18MPa from the viewpoint of sinterability.
Depending on the types of the metal material and titanate constituting the matrix, the types of other materials, and the like, the sintering step may be performed in the atmosphere or in an inert gas such as nitrogen gas or argon gas, or may be performed in a reducing gas such as carbon monoxide gas or hydrogen gas. The sintering step may be performed in vacuum.
The sintered body obtained through the above steps is subjected to a treatment such as cutting, grinding, polishing, etc., as necessary, thereby producing the sintered friction material of the present invention.
[ examples ]
The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples at all.
[ test example 1]
< examples 1-1 to 1-8 and comparative examples 1-1 to 1-4 >
The raw materials having the formulation composition (vol%) shown in table 1 were mixed by using a mixer. The obtained raw material mixtures were molded by cold stamping under a molding surface pressure of 520 MPa.
Each of the molded bodies thus obtained was put into a graphite mold and sintered by a hot press method to obtain sintered friction materials of examples 1-1 to 1-8 and comparative examples 1-1 to 1-4.
The sintering conditions in the hot press method are as follows.
Sintering surface pressure: 3MPa
Sintering temperature: 950 ℃ C
Sintering retention time: 120 minutes
[ evaluation of Friction Properties ]
The sintered friction materials of examples 1-1 to 1-8 and comparative examples 1-1 to 1-4 were subjected to a dynamometer test with reference to JASO C406 under the following test conditions, and the average values of the wear loss and the friction coefficient μ of each sintered friction material were measured. The results are shown in Table 1.
(test conditions)
Disc effective radius: 250mm
Area of friction material: 15.2cm2
The diameter of the cylinder body is as follows: 40.45mm
Inertia: 7kg m2
(method of evaluating abrasion loss)
The wear amount of the sintered friction material after the dynamometer test was completed was measured with a micrometer.
(method of evaluating Friction coefficient. mu.)
The coefficient of friction μ was measured under the following test conditions.
Initial speed: 100km/h
Pressing pressure: 1.0 MPa-10.0 MPa (1.0MPa scale)
The times are as follows: 1 time (10 times in total) for each pressing pressure
Brake disc temperature: 95 deg.C
The measurement result is determined based on the following criteria. The results are shown in Table 1.
(amount of wear)
O: the wear loss of the sintered friction material is 6.50mm or less.
X: the wear loss of the sintered friction material is greater than 6.50 mm.
(average value of coefficient of friction. mu.)
O: the average value of the friction coefficient mu is 0.20 or more.
X: the average value of the friction coefficient mu is less than 0.20.
[ Table 1]
From the results in Table 1, it is clear that the sintered friction materials of examples 1-1 to 1-8 have sufficient friction performance even in the high-speed region. For the sintered friction materials of comparative examples 1-1 and comparative examples 1-2, the content of the metallic material was outside the range of the present invention. The sintered friction materials of comparative examples 1 to 3 did not contain any metal material at all, and contained only a predetermined amount of titanate as a matrix. For the sintered friction materials of comparative examples 1 to 4, the content of the metallic material was outside the range of the present invention, and titanate was not contained at all. It is found that the friction performance of the sintered friction materials of all comparative examples is lower than that of the sintered friction materials of examples 1-1 to 1-8.
[ test example 2]
< examples 2-1 to 2-9, comparative example 2-1 >)
The raw materials having the formulation composition (vol%) shown in table 2 were mixed by using a mixer. The obtained raw material mixtures were molded by cold stamping under a molding surface pressure of 520 MPa.
Each of the molded bodies thus obtained was put into a graphite mold and sintered by a hot press method to obtain sintered friction materials of examples 2-1 to 2-9 and comparative example 2-1.
The sintering conditions in the hot press method are as follows.
Sintering surface pressure: 2MPa of
Sintering temperature: 950 ℃ C
Sintering retention time: 120 minutes
[ evaluation of Friction Properties ]
The sintered friction materials of examples 2-1 to 2-9 and comparative example 2-1 were subjected to a fading test under the following test conditions, and the wear amounts of the respective sintered friction materials and the rotor wear amount were measured. The results are shown in Table 2.
(test conditions)
Initial speed: 240km/h
Final speed: 90km/h
Deceleration rate: 8m/s2
First-brake rotor temperature: 120 deg.C
The braking times are as follows: 25 times (19 times in comparative example 2-1)
Clearance: 30 seconds
(method of evaluating wear amount of sintered Friction Material)
The wear amount of the sintered friction material after the end of the fade test was measured with a micrometer and converted into the wear amount per 1 brake.
(method of evaluating rotor wear amount)
The wear amount of the rotor after the end of the fading test was measured by a micrometer and converted into the wear amount per 1 braking.
[ Table 2]
As is clear from the results in Table 2, the sintered friction materials of examples 2-1 to 2-9 have sufficient friction performance even in the high-speed region.
The present invention has been described in detail with reference to specific embodiments, but it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. The present application is based on japanese patent application filed on 31/10/2018 (japanese patent application 2018-205687) and on 25/9/2019 (japanese patent application 2019-174044), the contents of which are incorporated herein by reference.
Industrial applicability
The sintered friction material is an environment-friendly friction material with the copper content below a certain amount. In addition, the sintered friction material of the present invention has sufficient friction performance in a high speed region.
The sintered friction material can be used for the brake of the integral transportation equipment such as passenger vehicles, commercial vehicles, two-wheel vehicles, railways and the like or industrial machinery and the like.
Claims (6)
1. A sintered friction material characterized by,
the content of the copper component is 0.5 mass% or less,
contains metallic materials except copper and titanate as matrix,
the content of the metal material other than copper is 10.0 to 34.0 vol%.
2. Sintered friction material according to claim 1,
the titanate contains at least 1 salt selected from the group consisting of alkali metal titanate, alkaline earth metal titanate and complex titanate.
3. Sintered friction material according to claim 1 or 2,
the titanate contains at least 1 salt selected from the group consisting of potassium titanate, sodium titanate, calcium titanate, potassium lithium titanate, and potassium magnesium titanate.
4. A sintered friction material as defined in any of claims 1 to 3,
the metal material other than copper contains an iron-based material, and the content of the iron-based material is 8.0 to 32.0 vol%.
5. Sintered friction material according to any of claims 1 to 4,
the metal material other than copper further contains tungsten, and the content of tungsten is 1.0-15.0 vol%.
6. A method of making a sintered friction material, comprising:
a mixing step of mixing a raw material containing a metal material other than copper and a titanate;
a molding step of molding the raw materials mixed in the mixing step; and
a sintering step of sintering the molded body molded in the molding step at 900 to 1300 ℃,
in the sintered friction material, the metal material other than copper and the titanate constitute a matrix, and the content of the metal material other than copper is 10.0-34.0 vol%.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018205687 | 2018-10-31 | ||
| JP2018-205687 | 2018-10-31 | ||
| JP2019-174044 | 2019-09-25 | ||
| JP2019174044A JP7401233B2 (en) | 2018-10-31 | 2019-09-25 | Sintered friction material and method for manufacturing sintered friction material |
| PCT/JP2019/042148 WO2020090725A1 (en) | 2018-10-31 | 2019-10-28 | Sintered friction material and method for producing sintered friction material |
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| Publication Number | Publication Date |
|---|---|
| CN112996878A true CN112996878A (en) | 2021-06-18 |
| CN112996878B CN112996878B (en) | 2023-01-31 |
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| CN201980072171.6A Active CN112996878B (en) | 2018-10-31 | 2019-10-28 | Sintered friction material and method for producing sintered friction material |
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| Country | Link |
|---|---|
| US (1) | US20220003290A1 (en) |
| JP (1) | JP7401233B2 (en) |
| CN (1) | CN112996878B (en) |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1138879A (en) * | 1994-01-10 | 1996-12-25 | 克烈舍格金属烧结工厂股份有限公司 | Sintered friction material for friction-linked components and friction-linked component |
| JPH1180855A (en) * | 1997-09-04 | 1999-03-26 | Sumitomo Electric Ind Ltd | Sintered friction material |
| US6051277A (en) * | 1996-02-16 | 2000-04-18 | Nils Claussen | Al2 O3 composites and methods for their production |
| US20030026969A1 (en) * | 2001-07-30 | 2003-02-06 | Nisshinbo Industries, Inc. | Non-asbestos-based friction materials |
| JP2006347379A (en) * | 2005-06-16 | 2006-12-28 | Bridgestone Corp | Tire for heavy load and its manufacturing method |
| JP2008214727A (en) * | 2007-03-07 | 2008-09-18 | Akebono Brake Ind Co Ltd | Sintered friction material |
| CN103797085A (en) * | 2011-09-14 | 2014-05-14 | 曙制动器工业株式会社 | Friction material |
| CN104884562A (en) * | 2012-12-21 | 2015-09-02 | 曙制动器工业株式会社 | Friction material |
| CN105555900A (en) * | 2013-09-17 | 2016-05-04 | 曙制动器工业株式会社 | Friction material |
| CN106084644A (en) * | 2016-06-01 | 2016-11-09 | 华南理工大学 | Automobile-used resin based powder metallurgy potassium titanate fibre friction material and preparation method thereof |
| CN106085356A (en) * | 2015-04-27 | 2016-11-09 | 曙制动器工业株式会社 | Friction material composition, friction material and manufacture method thereof |
| JP2017002185A (en) * | 2015-06-10 | 2017-01-05 | 日立化成株式会社 | Friction material composition, friction material and friction member using friction material composition |
| JP2017057312A (en) * | 2015-09-17 | 2017-03-23 | 曙ブレーキ工業株式会社 | Friction material composition and friction material |
| CN107523716A (en) * | 2016-06-17 | 2017-12-29 | 贺尔碧格传动技术控股有限公司 | Sintered friction material for friction facing |
| CN110832049A (en) * | 2017-06-27 | 2020-02-21 | 曙制动器工业株式会社 | Sintered friction material and method for producing sintered friction material |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006348379A (en) * | 2005-05-17 | 2006-12-28 | Tungaloy Corp | Sintered metal friction material, and friction member |
| JP2009073908A (en) * | 2007-09-20 | 2009-04-09 | Akebono Brake Ind Co Ltd | Friction material |
| WO2013054857A1 (en) * | 2011-10-11 | 2013-04-18 | 曙ブレーキ工業株式会社 | Friction material |
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Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1138879A (en) * | 1994-01-10 | 1996-12-25 | 克烈舍格金属烧结工厂股份有限公司 | Sintered friction material for friction-linked components and friction-linked component |
| US6051277A (en) * | 1996-02-16 | 2000-04-18 | Nils Claussen | Al2 O3 composites and methods for their production |
| JPH1180855A (en) * | 1997-09-04 | 1999-03-26 | Sumitomo Electric Ind Ltd | Sintered friction material |
| US20030026969A1 (en) * | 2001-07-30 | 2003-02-06 | Nisshinbo Industries, Inc. | Non-asbestos-based friction materials |
| JP2006347379A (en) * | 2005-06-16 | 2006-12-28 | Bridgestone Corp | Tire for heavy load and its manufacturing method |
| JP2008214727A (en) * | 2007-03-07 | 2008-09-18 | Akebono Brake Ind Co Ltd | Sintered friction material |
| CN103797085A (en) * | 2011-09-14 | 2014-05-14 | 曙制动器工业株式会社 | Friction material |
| CN104884562A (en) * | 2012-12-21 | 2015-09-02 | 曙制动器工业株式会社 | Friction material |
| CN105555900A (en) * | 2013-09-17 | 2016-05-04 | 曙制动器工业株式会社 | Friction material |
| CN106085356A (en) * | 2015-04-27 | 2016-11-09 | 曙制动器工业株式会社 | Friction material composition, friction material and manufacture method thereof |
| JP2017002185A (en) * | 2015-06-10 | 2017-01-05 | 日立化成株式会社 | Friction material composition, friction material and friction member using friction material composition |
| JP2017057312A (en) * | 2015-09-17 | 2017-03-23 | 曙ブレーキ工業株式会社 | Friction material composition and friction material |
| CN106084644A (en) * | 2016-06-01 | 2016-11-09 | 华南理工大学 | Automobile-used resin based powder metallurgy potassium titanate fibre friction material and preparation method thereof |
| CN107523716A (en) * | 2016-06-17 | 2017-12-29 | 贺尔碧格传动技术控股有限公司 | Sintered friction material for friction facing |
| CN110832049A (en) * | 2017-06-27 | 2020-02-21 | 曙制动器工业株式会社 | Sintered friction material and method for producing sintered friction material |
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| JP2020076064A (en) | 2020-05-21 |
| CN112996878B (en) | 2023-01-31 |
| JP7401233B2 (en) | 2023-12-19 |
| US20220003290A1 (en) | 2022-01-06 |
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