CN106282815A - A kind of powder metallurgy automobile brake block and preparation method - Google Patents
A kind of powder metallurgy automobile brake block and preparation method Download PDFInfo
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- CN106282815A CN106282815A CN201610687009.3A CN201610687009A CN106282815A CN 106282815 A CN106282815 A CN 106282815A CN 201610687009 A CN201610687009 A CN 201610687009A CN 106282815 A CN106282815 A CN 106282815A
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- automobile brake
- brake sheet
- pressure
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- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 40
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 40
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 33
- 239000010439 graphite Substances 0.000 claims abstract description 33
- 239000006004 Quartz sand Substances 0.000 claims abstract description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 26
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 25
- 239000011733 molybdenum Substances 0.000 claims abstract description 25
- 239000000843 powder Substances 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 21
- 238000002156 mixing Methods 0.000 claims abstract description 18
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 51
- 235000019580 granularity Nutrition 0.000 claims description 28
- 238000001816 cooling Methods 0.000 claims description 21
- 238000005245 sintering Methods 0.000 claims description 20
- 238000012545 processing Methods 0.000 claims description 15
- 238000005915 ammonolysis reaction Methods 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 7
- 238000005538 encapsulation Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000003973 paint Substances 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 241000555268 Dendroides Species 0.000 claims description 3
- 241000222065 Lycoperdon Species 0.000 claims description 3
- 241000768494 Polymorphum Species 0.000 claims description 3
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims 1
- 229910052721 tungsten Inorganic materials 0.000 claims 1
- 239000010937 tungsten Substances 0.000 claims 1
- 238000005562 fading Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 239000000470 constituent Substances 0.000 description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 5
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0005—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with at least one oxide and at least one of carbides, nitrides, borides or silicides as the main non-metallic constituents
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0084—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ carbon or graphite as the main non-metallic constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0089—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with other, not previously mentioned inorganic compounds as the main non-metallic constituent, e.g. sulfides, glass
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
- C22C33/0292—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with more than 5% preformed carbides, nitrides or borides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- 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
- F16D2200/0008—Ferro
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of powder metallurgy automobile brake block and preparation method, it is made up of following raw material: iron powder, copper powder, graphite, carborundum, quartz sand, nikel powder, tungsten carbide, molybdenum bisuphide, by these raw materials by a series of work flows such as reduction or drying, batch mixing, compressing, sinter molding and the machining in later stage, manufacture that a kind of frictional behaviour is superior, super abrasive, the brake block that high temperature resistant and heat fading is stable, be particularly well-suited to some high-grade cars, sport car, occupation racing car.
Description
Technical field
The present invention relates to brake system of car technical field, be specifically related to a kind of powder metallurgy automobile brake block and preparation side
Method.
Background technology
In the brake system of automobile, brake block is the breaking piece of most critical, and the quality of all braking effects is all stopped
Car sheet plays a decisive role, so the brake block agreeing is the patron saint of people and automobile, and racing car in the market and top grade
Automobiles etc. use heat-resist and lightweight carbon ceramic Moving plate mostly, thus the automobile matched development & production therewith is stopped
Car sheet proposes new challenge.Along with raising and the progressively reinforcement of environmental consciousness of car speed, brake block is combined by automobile
The requirement closing performance is more and more higher.The automobile brake sheet made with synthetic material, coefficient of friction can be serious at high operating temperatures
Decline, and along with the change of speed, the fluctuating margin of coefficient of friction is relatively big, thus causes braking moment seriously to reduce, impact row
Car safety；The asbestos dust etc. simultaneously formed in wear process, healthy to the mankind threatens and pollutes environment.
Summary of the invention
It is desirable to provide a kind of powder metallurgy automobile brake block and preparation method, for above-mentioned with carbon ceramic Moving plate phase
The problem that the composite brake sheet of coupling exists, manufacture that a kind of frictional behaviour is superior, super abrasive, high temperature resistant and stable the stopping of heat fading
Car sheet, is particularly well-suited to some high-grade cars, sport car, occupation racing car.
The present invention is achieved by following technical solution:
A kind of powder metallurgy automobile brake block, is composed of the following raw materials by weight: iron powder 50～70 parts, copper powder 6～13 parts,
Graphite 10～15 parts, carborundum 2～6 parts, quartz sand 2～8 parts, nikel powder 0.5～2 parts, tungsten carbide 1～7 parts, molybdenum bisuphide 2～7
Part.
Described a kind of powder metallurgy automobile brake block, raw material is preferably: iron powder 55～65 parts, copper powder 8～11
Part, graphite 11～13 parts, carborundum 3～5 parts, quartz sand 4～6 parts, nikel powder 1～1.5 parts, tungsten carbide 3～6 parts, molybdenum bisuphide 4
～5 parts.
Described a kind of powder metallurgy automobile brake block, raw material is preferably: iron powder 60 parts, copper powder 10 parts, graphite
12 parts, carborundum 4 parts, quartz sand 5 parts, nikel powder 1 part, tungsten carbide 4 parts, molybdenum bisuphide 4 parts.
Each constituent element microcosmic character of described constitutive material is respectively as follows: iron powder purity >=98%, and granularity is 20～75 μm, sponge
Shape；Copper powder purity >=99.5%, granularity is 20～75 μm, dendroid；Graphite purity >=92%, granularity is 20～40 μm, granule
Shape；Carborundum purity >=97%, granularity is 50～63 μm；Quartz sand purity >=97%, granularity is 40～100 μm；Nikel powder purity
>=99.5%, granularity is 20～63 μm, spherical；Tungsten carbide purity >=99.5%, Lycoperdon polymorphum Vitt powder；Molybdenum bisuphide purity >=97%,
Granularity is 20～45 μm, stratiform powder.
This brake block preparation method comprises the steps:
(A) raw-material process: copper powder and iron powder are carried out reduction treatment, graphite, carborundum, quartz sand, molybdenum bisuphide
Need to be through drying and processing；
(B) weigh each constitutive material after step (A) processes in proportion and put into batch mixer and carry out uniform batch mixing；
(C) by the compound after mix homogeneously, carry out weighing by automobile brake sheet pressing parameter, pour in compacting tool set,
In the pressing pressure of 500～600MPa, repressed process, prepare pressed compact；
(D) pressed compact suppressed is fixed on the automobile brake sheet skeleton that blast processes, puts by stacking, every layer of brake
Separate with graphite plate between sheet, be sintered in pressurized sintering furnace；
(E) by the sintering blank of the automobile brake sheet of gained, further machine adds recontour；
(F) automobile brake sheet step E obtained is carried out spraying paint package encapsulation after process.
Described step (A) is divided into following steps:
(a1) copper powder and the reduction treatment of iron powder: the reduction temperature of copper powder is 400～450 DEG C, the reduction temperature of iron powder is
600～700 DEG C, after being incubated 3 hours in ammonolysis craft gaseous environment, air cooling is to room temperature, and copper powder and iron powder after reduction must be through accordingly
The standard sieve of granularity processes；
(a2) graphite, carborundum, quartz sand, molybdenum bisuphide need to through drying and processing, dry temperature be 150～200 DEG C, protect
Temperature is furnace cooling after 3 hours, and constant temperature processes under 20～60 DEG C of environment.
In described step (D), the technique of sintering is: under ammonolysis craft gas shield, with the programming rate of 8～15 DEG C/min
It is raised to 500 ± 20 DEG C from room temperature, applies the pressure of 0.8～1.0MPa to automobile brake sheet；To when 500 ± 20 DEG C be incubated 20～
30min, applies the pressure of 0.8～1.0MPa to automobile brake sheet；Rise from 500 ± 20 DEG C with the programming rate of 5～8 DEG C/min again
To 900 ± 30 DEG C, apply the pressure of 1.5～2.0MPa to automobile brake sheet；Then 20～30min it are incubated when 900 ± 30 DEG C,
The pressure of 2.4～3.0MPa is applied to automobile brake sheet；Continue to be raised to from 900 ± 30 DEG C with the programming rate of 2～5 DEG C/min
1000 ± 50 DEG C, apply the pressure of 3.5～4.0MPa to automobile brake sheet；Then it is incubated 150min when 1000 ± 50 DEG C, gives
Automobile brake sheet applies the pressure of 4.5～5.0MPa；Equipment is cooled to less than 60 DEG C with water-cooling pattern after terminating and takes by insulation
Go out automobile brake sheet.
The invention has the beneficial effects as follows:
Compared with prior art, a kind of powder metallurgy automobile brake block of present invention offer and preparation method, use above-mentioned
Technical scheme with carbon ceramic Moving plate matching used powder metallurgy automobile brake block, using iron powder as matrix constituent element, by adding
Enter the strengthening constituent element such as copper powder, nikel powder, matrix is strengthened；By adding the constituent element such as carborundum, quartz sand, increase braking automobile
The coefficient of friction of sheet；By adding the lubricant components such as graphite, tungsten carbide and molybdenum bisuphide, increase in automobile brake sheet wear process
The smoothness on surface also reduces the abrasion to carbon ceramic Moving plate.Use automobile brake sheet prepared by the technical program, average friction
Coefficient ratio synthesis brake block is high, and braking distance is short, and does not has obvious heat fading phenomenon, stable friction factor and braking automobile
The wear extent of sheet and carbon ceramic Moving plate is smaller.
Accompanying drawing explanation
Fig. 1 is the processing process figure of the present invention；
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is described further, but required protection domain does not limit to
In described；
A kind of powder metallurgy automobile brake block of present invention offer and preparation method, brake block is by following raw material group
Become: iron powder 50～70 parts, copper powder 6～13 parts, graphite 10～15 parts, carborundum 2～6 parts, quartz sand 2～8 parts, nikel powder 0.5～2
Part, tungsten carbide 1～7 parts, molybdenum bisuphide 2～7 parts.
Each constituent element microcosmic character of described constitutive material is respectively as follows: iron powder purity >=98%, and granularity is 20～75 μm, sponge
Shape；Copper powder purity >=99.5%, granularity is 20～75 μm, dendroid；Graphite purity >=92%, granularity is 20～40 μm, granule
Shape；Carborundum purity >=97%, granularity is 50～63 μm；Quartz sand purity >=97%, granularity is 40#～100#；Nikel powder purity
>=99.5%, granularity is 20～63 μm, spherical；Tungsten carbide purity >=99.5%, Lycoperdon polymorphum Vitt powder；Molybdenum bisuphide purity >=97%,
Granularity is 20～45 μm, stratiform powder.
Embodiment 1:
On request copper powder and iron powder being carried out reduction treatment, the reduction temperature of copper powder is 400 DEG C, and the reduction temperature of iron powder is
600 DEG C, after being incubated 3 hours in ammonolysis craft gaseous environment, air cooling is to room temperature, and copper powder and iron powder after reduction must be through corresponding granularities
Standard sieve process；Graphite, carborundum, quartz sand, molybdenum bisuphide need to be through drying and processings, and drying temperature is 150 DEG C,
Furnace cooling after being incubated 3 hours, and constant temperature processes under 20 DEG C of environment.Raw material after processing is weighed respectively by following weight portion
Constituent element: iron powder 60 parts, copper powder 10 parts, 12 parts of graphite, carborundum 4 parts, quartz sand 4 parts, nikel powder 1 part, tungsten carbide 4 parts, curing
Molybdenum 5 parts.Raw material after being taken by one-tenth is put into and is carried out batch mixing in batch mixer.Batch mixing rotating speed is 30r/min, and mixing time is 12h.Will
Compound after mix homogeneously, carries out weighing by automobile brake sheet pressing parameter, pours in compacting tool set, in the compacting of 500MPa
Pressure, repressed process, prepare pressed compact.The pressed compact suppressed is fixed on the automobile brake sheet skeleton that blast processes, presses
Stacking is put, and separates with graphite plate, be sintered in pressurized sintering furnace between every layer of brake block.Sintering process parameter is: at ammonia
Under decomposition gas protection, it is raised to 500 ± 20 DEG C with the programming rate of 8 DEG C/min from room temperature, applies the pressure of 0.8 to automobile brake sheet
Power；To being incubated 30min when 500 ± 20 DEG C, apply the pressure of 0.8MPa to automobile brake sheet；Again with the programming rate of 8 DEG C/min
It is raised to 900 ± 30 DEG C from 500 ± 20 DEG C, applies the pressure of 1.5MPa to automobile brake sheet；Then it is incubated when 900 ± 30 DEG C
30min, applies the pressure of 2.4MPa to automobile brake sheet；Continue to be raised to 1000 with the programming rate of 2 DEG C/min from 900 ± 30 DEG C
± 50 DEG C, apply the pressure of 3.5MPa to automobile brake sheet；Then 150min it is incubated when 1000 ± 50 DEG C, to automobile brake sheet
Apply the pressure of 4.5MPa；Equipment is cooled to less than 60 DEG C with water-cooling pattern after terminating and takes out automobile brake sheet by insulation.Will
The sintering blank of gained, further machine adds recontour；Finally carry out spraying paint package encapsulation after process by automobile brake sheet.
Embodiment 2:
On request copper powder and iron powder being carried out reduction treatment, the reduction temperature of copper powder is 450 DEG C, and the reduction temperature of iron powder is
700 DEG C, after being incubated 3 hours in ammonolysis craft gaseous environment, air cooling is to room temperature, and copper powder and iron powder after reduction must be through corresponding granularities
Standard sieve process；Graphite, carborundum, quartz sand, molybdenum bisuphide need to be through drying and processings, and drying temperature is 200 DEG C,
Furnace cooling after being incubated 3 hours, and constant temperature processes under 60 DEG C of environment.Raw material after processing is weighed respectively by following weight portion
Constituent element: iron powder 50 parts, copper powder 13 parts, 15 parts of graphite, carborundum 6 parts, quartz sand 2 parts, nikel powder 2 parts, tungsten carbide 7 parts, curing
Molybdenum 5 parts.Raw material after weighing is put into and is carried out batch mixing in batch mixer.Batch mixing rotating speed is 60r/min, and mixing time is 6h.Will
Compound after mix homogeneously, carries out weighing by automobile brake sheet pressing parameter, pours in compacting tool set, in the compacting of 600MPa
Pressure, repressed process, prepare pressed compact.The pressed compact suppressed is fixed on the automobile brake sheet skeleton that blast processes, presses
Stacking is put, and separates with graphite plate, be sintered in pressurized sintering furnace between every layer of brake block.Sintering process parameter is: at ammonia
Under decomposition gas protection, it is raised to 500 ± 20 DEG C with the programming rate of 15 DEG C/min from room temperature, applies 1.0MPa to automobile brake sheet
Pressure；To being incubated 20min when 500 ± 20 DEG C, apply the pressure of 1.0MPa to automobile brake sheet；Again with the intensification of 8 DEG C/min
Speed is raised to 900 ± 30 DEG C from 500 ± 20 DEG C, applies the pressure of 2.0MPa to automobile brake sheet；Then protect when 900 ± 30 DEG C
Temperature 20min, applies the pressure of 3.0MPa to automobile brake sheet；Continue to be raised to from 900 ± 30 DEG C with the programming rate of 5 DEG C/min
1000 ± 50 DEG C, apply the pressure of 4.0MPa to automobile brake sheet；Then it is incubated 150min when 1000 ± 50 DEG C, stops to automobile
Car sheet applies the pressure of 5.0MPa；Equipment is cooled to less than 60 DEG C with water-cooling pattern after terminating and takes out braking automobile by insulation
Sheet.The brake block of gained is sintered blank, and further machine adds recontour.Carry out spraying paint after process by the automobile brake sheet obtained
Package encapsulation.
Embodiment 3:
On request copper powder and iron powder being carried out reduction treatment, the reduction temperature of copper powder is 420 DEG C, and the reduction temperature of iron powder is
630 DEG C, after being incubated 3 hours in ammonolysis craft gaseous environment, air cooling is to room temperature, and copper powder and iron powder after reduction must be through corresponding granularities
Standard sieve process；Graphite, carborundum, quartz sand, molybdenum bisuphide need to be through drying and processings, and drying temperature is 170 DEG C,
Furnace cooling after being incubated 3 hours, and constant temperature processes under 30 DEG C of environment.Raw material after processing is weighed respectively by following weight portion
Constituent element: iron powder 70 parts, copper powder 6 parts, 10 parts of graphite, carborundum 2 parts, quartz sand 3 parts, nikel powder 0.5 part, tungsten carbide 1.5 parts, two sulfur
Change molybdenum 7 parts.Raw material after being taken by one-tenth is put into and is carried out batch mixing in batch mixer.Batch mixing rotating speed is 40r/min, and mixing time is 8h.
By the compound after mix homogeneously, carry out weighing by automobile brake sheet pressing parameter, pour in compacting tool set, in the pressure of 550MPa
Pressing pressure, repressed process, prepare pressed compact.The pressed compact suppressed is fixed on the automobile brake sheet skeleton that blast processes,
Put by stacking, separate with graphite plate between every layer of brake block, be sintered in pressurized sintering furnace.Sintering process parameter is:
Under ammonolysis craft gas shield, it is raised to 500 ± 20 DEG C with the programming rate of 10/min from room temperature, applies 0.9MPa to automobile brake sheet
Pressure；To being incubated 25min when 500 ± 20 DEG C, apply the pressure of 0.9MPa to automobile brake sheet；Again with the intensification of 6 DEG C/min
Speed is raised to 900 ± 30 DEG C from 500 ± 20 DEG C, applies the pressure of 1.7MPa to automobile brake sheet；Then protect when 900 ± 30 DEG C
Temperature 25min, applies the pressure of 2.8MPa to automobile brake sheet；Continue to be raised to from 900 ± 30 DEG C with the programming rate of 4 DEG C/min
1000 ± 50 DEG C, apply the pressure of 3.7MPa to automobile brake sheet；Then it is incubated 150min when 1000 ± 50 DEG C, stops to automobile
Car sheet applies the pressure of 4.5MPa；Equipment is cooled to less than 60 DEG C with water-cooling pattern after terminating and takes out braking automobile by insulation
Sheet.By the sintering blank of the automobile brake sheet of gained, further machine adds recontour.The automobile brake sheet obtained is sprayed paint
Package encapsulation after process.
Embodiment 4:
On request copper powder and iron powder being carried out reduction treatment, the reduction temperature of copper powder is 440 DEG C, and the reduction temperature of iron powder is
650 DEG C, after being incubated 3 hours in ammonolysis craft gaseous environment, air cooling is to room temperature, and copper powder and iron powder after reduction must be through corresponding granularities
Standard sieve process；Graphite, carborundum, quartz sand, molybdenum bisuphide need to be through drying and processings, and drying temperature is 180 DEG C,
Furnace cooling after being incubated 3 hours, and constant temperature processes under 50 DEG C of environment.Raw material after processing is weighed respectively by following weight portion
Constituent element: iron powder 65 parts, copper powder 7 parts, 12 parts of graphite, carborundum 3.5 parts, quartz sand 8 parts, nikel powder 1.5 parts, tungsten carbide 1 part, two sulfur
Change molybdenum 2 parts.Raw material after being taken by one-tenth is put into and is carried out batch mixing in batch mixer.Batch mixing rotating speed is 50r/min, and mixing time is 9h.
By the compound after mix homogeneously, carry out weighing by automobile brake sheet pressing parameter, pour in compacting tool set, in the pressure of 580MPa
Pressing pressure, repressed process, prepare pressed compact.The pressed compact suppressed is fixed on the automobile brake sheet skeleton that blast processes,
Put by stacking, separate with graphite plate between every layer of brake block, be sintered in pressurized sintering furnace.Sintering process parameter is:
Under ammonolysis craft gas shield, it is raised to 500 ± 20 DEG C with the programming rate of 12 DEG C/min from room temperature, applies to automobile brake sheet
The pressure of 0.9MPa；To being incubated 28min when 500 ± 20 DEG C, apply the pressure of 0.8MPa to automobile brake sheet；Again with 8 DEG C/min
Programming rate be raised to 900 ± 30 DEG C from 500 ± 20 DEG C, to automobile brake sheet apply 1.9MPa pressure；Then 900 ± 30
DEG C time insulation 28min, to automobile brake sheet apply 2.9MPa pressure；Continue the programming rate with 4.8 DEG C/min from 900 ± 30
DEG C it is raised to 1000 ± 50 DEG C, applies the pressure of 3.8MPa to automobile brake sheet；Then it is incubated 150min when 1000 ± 50 DEG C, gives
Automobile brake sheet applies the pressure of 5.0MPa；Equipment is cooled to less than 60 DEG C with water-cooling pattern after terminating and takes out automobile by insulation
Brake block.By the sintering blank of the automobile brake sheet of step E gained, further machine adds recontour.The automobile that step F is obtained
Brake block is carried out spraying paint package encapsulation after process.
Embodiment 5:
On request copper powder and iron powder being carried out reduction treatment, the reduction temperature of copper powder is 410 DEG C, and the reduction temperature of iron powder is
690 DEG C, after being incubated 3 hours in ammonolysis craft gaseous environment, air cooling is to room temperature, and copper powder and iron powder after reduction must be through corresponding granularities
Standard sieve process；Graphite, carborundum, quartz sand, molybdenum bisuphide need to be through drying and processings, and drying temperature is 155 DEG C,
Furnace cooling after being incubated 3 hours, and constant temperature processes under 22 DEG C of environment.Raw material after processing is weighed respectively by following weight portion
Constituent element: iron powder 52 parts, copper powder 12 parts, 13 parts of graphite, carborundum 6 parts, quartz sand 7 parts, nikel powder 2 parts, tungsten carbide 5 parts, curing
Molybdenum 3 parts.Raw material after being taken by one-tenth is put into and is carried out batch mixing in batch mixer.Batch mixing rotating speed is 35r/min, and mixing time is 11h.Will
Compound after mix homogeneously, carries out weighing by automobile brake sheet pressing parameter, pours in compacting tool set, in the compacting of 555MPa
Pressure, repressed process, prepare pressed compact.The pressed compact suppressed is fixed on the automobile brake sheet skeleton that blast processes, presses
Stacking is put, and separates with graphite plate, be sintered in pressurized sintering furnace between every layer of brake block.Sintering process parameter is: at ammonia
Under decomposition gas protection, it is raised to 500 ± 20 DEG C with the programming rate of 11 DEG C/min from room temperature, applies to automobile brake sheet
The pressure of 0.85MPa；To being incubated 20～30min when 500 ± 20 DEG C, apply the pressure of 0.85MPa to automobile brake sheet；Again with
The programming rate of 5.5 DEG C/min is raised to 900 ± 30 DEG C from 500 ± 20 DEG C, applies the pressure of 1.75MPa to automobile brake sheet；Connect
The insulation 23min when 900 ± 30 DEG C, apply the pressure of 2.7MPa to automobile brake sheet；Continue the intensification speed with 4.5 DEG C/min
Degree is raised to 1000 ± 50 DEG C from 900 ± 30 DEG C, applies the pressure of 3.8MPa to automobile brake sheet；Then protect when 1000 ± 50 DEG C
Temperature 150min, applies the pressure of 4.9MPa to automobile brake sheet；Insulation terminate after with water-cooling pattern equipment is cooled to 60 DEG C with
Descend and take out automobile brake sheet.By the sintering blank of the automobile brake sheet of gained, further machine adds recontour.The vapour that will obtain
Car brake block is carried out spraying paint package encapsulation after process.
Claims (7)
1. a powder metallurgy automobile brake block, it is characterised in that: it is composed of the following raw materials by weight: iron powder 50～70 parts, copper
Powder 6～13 parts, graphite 10～15 parts, carborundum 2～6 parts, quartz sand 2～8 parts, nikel powder 0.5～2 parts, tungsten carbide 1～7 parts, two
Molybdenum sulfide 2～7 parts.
A kind of powder metallurgy automobile brake block the most according to claim 1, it is characterised in that raw material is preferably: ferrum
Powder 55～65 parts, copper powder 8～11 parts, graphite 11～13 parts, carborundum 3～5 parts, quartz sand 4～6 parts, nikel powder 1～1.5 parts, carbon
Change tungsten 3～6 parts, molybdenum bisuphide 4～5 parts.
A kind of powder metallurgy automobile brake block the most according to claim 1, it is characterised in that raw material is preferably: ferrum
60 parts of powder, copper powder 10 parts, 12 parts of graphite, carborundum 4 parts, quartz sand 5 parts, nikel powder 1 part, tungsten carbide 4 parts, molybdenum bisuphide 4 parts.
A kind of powder metallurgy automobile brake block the most according to claim 1, it is characterised in that: each group of described constitutive material
Unit's microcosmic character is respectively as follows: iron powder purity >=98%, and granularity is 20～75 μm, spongy；Copper powder purity >=99.5%, granularity is
20～75 μm, dendroid；Graphite purity >=92%, granularity is 20～40 μm, graininess；Carborundum purity >=97%, granularity is
50～63 μm；Quartz sand purity >=97%, granularity is 40～100 μm；Nikel powder purity >=99.5%, granularity is 20～63 μm, ball
Shape；Tungsten carbide purity >=99.5%, Lycoperdon polymorphum Vitt powder；Molybdenum bisuphide purity >=97%, granularity is 20～45 μm, stratiform powder.
5. the preparation method of the powder metallurgy automobile brake block as described in any one of claim 1-4, it is characterised in that: should
Method comprises the steps:
(A) raw-material process: copper powder and iron powder are carried out reduction treatment, graphite, carborundum, quartz sand, molybdenum bisuphide need through
Cross drying and processing；
(B) weigh each constitutive material after step (A) processes in proportion and put into batch mixer and carry out uniform batch mixing；
(C) by the compound after mix homogeneously, carry out weighing by automobile brake sheet pressing parameter, pour in compacting tool set, 500
～the pressing pressure of 600MPa, repressed process, prepare pressed compact；
(D) pressed compact suppressed is fixed on the automobile brake sheet skeleton that blast processes, puts by stacking, every layer of brake block it
Between separate with graphite plate, be sintered in pressurized sintering furnace；
(E) by the sintering blank of the automobile brake sheet of gained, further machine adds recontour；
(F) automobile brake sheet step E obtained is carried out spraying paint package encapsulation after process.
6. according to the preparation method of the powder metallurgy automobile brake block described in claims 5, it is characterised in that: described step
(A) it is divided into following steps:
(a1) copper powder and the reduction treatment of iron powder: the reduction temperature of copper powder is 400～450 DEG C, the reduction temperature of iron powder be 600～
700 DEG C, after being incubated 3 hours in ammonolysis craft gaseous environment, air cooling is to room temperature, and copper powder and iron powder after reduction must be through corresponding granularities
Standard sieve process；
(a2) graphite, carborundum, quartz sand, molybdenum bisuphide need to through drying and processing, dry temperature be 150～200 DEG C, be incubated 3
Furnace cooling after hour, and constant temperature processes under 20～60 DEG C of environment.
The preparation method of powder metallurgy automobile brake block the most according to claim 5, it is characterised in that: described step (D)
The technique of middle sintering is: under ammonolysis craft gas shield, is raised to 500 ± 20 DEG C with the programming rate of 8～15 DEG C/min from room temperature,
The pressure of 0.8～1.0MPa is applied to automobile brake sheet；To being incubated 20～30min when 500 ± 20 DEG C, apply to automobile brake sheet
The pressure of 0.8～1.0MPa；It is raised to 900 ± 30 DEG C from 500 ± 20 DEG C, to braking automobile again with the programming rate of 5～8 DEG C/min
Sheet applies the pressure of 1.5～2.0MPa；Then when 900 ± 30 DEG C be incubated 20～30min, to automobile brake sheet apply 2.4～
The pressure of 3.0MPa；Continue to be raised to 1000 ± 50 DEG C from 900 ± 30 DEG C, to automobile brake sheet with the programming rate of 2～5 DEG C/min
Apply the pressure of 3.5～4.0MPa；Then when 1000 ± 50 DEG C be incubated 150min, to automobile brake sheet apply 4.5～
The pressure of 5.0MPa；Equipment is cooled to less than 60 DEG C with water-cooling pattern after terminating and takes out automobile brake sheet by insulation.
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| CN107477120A (en) * | 2017-09-29 | 2017-12-15 | 贵州新安航空机械有限责任公司 | One kind driftage synthesis brake block and preparation method thereof |
| CN107795619A (en) * | 2017-09-28 | 2018-03-13 | 贵州新安航空机械有限责任公司 | A kind of manufacturing process of aircraft brake block friction material and the aircraft brake piece |
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| CN109055849A (en) * | 2018-07-12 | 2018-12-21 | 潍坊科技学院 | Steel/quartz sand preparation high-wearing feature brake block and preparation method thereof |
| CN109136783A (en) * | 2018-09-17 | 2019-01-04 | 安徽博耐克摩擦材料有限公司 | A kind of alloy steel material for brake drum |
| CN111892416A (en) * | 2020-07-27 | 2020-11-06 | 贵阳天龙摩擦材料有限公司 | Preparation method of carbon-ceramic brake disc |
| CN114382812A (en) * | 2021-12-24 | 2022-04-22 | 天宜上佳（天津）新材料有限公司 | Friction material, friction body, brake pad and preparation method thereof |
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| CN107795619A (en) * | 2017-09-28 | 2018-03-13 | 贵州新安航空机械有限责任公司 | A kind of manufacturing process of aircraft brake block friction material and the aircraft brake piece |
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| CN107477120B (en) * | 2017-09-29 | 2019-08-23 | 贵州新安航空机械有限责任公司 | A kind of yaw synthesis brake block and preparation method thereof |
| CN109055849A (en) * | 2018-07-12 | 2018-12-21 | 潍坊科技学院 | Steel/quartz sand preparation high-wearing feature brake block and preparation method thereof |
| CN109023095A (en) * | 2018-09-17 | 2018-12-18 | 安徽博耐克摩擦材料有限公司 | A kind of alloy steel material for brake disc |
| CN109136783A (en) * | 2018-09-17 | 2019-01-04 | 安徽博耐克摩擦材料有限公司 | A kind of alloy steel material for brake drum |
| CN111892416A (en) * | 2020-07-27 | 2020-11-06 | 贵阳天龙摩擦材料有限公司 | Preparation method of carbon-ceramic brake disc |
| CN114382812A (en) * | 2021-12-24 | 2022-04-22 | 天宜上佳（天津）新材料有限公司 | Friction material, friction body, brake pad and preparation method thereof |
| CN114382812B (en) * | 2021-12-24 | 2024-03-08 | 天宜上佳（天津）新材料有限公司 | Friction material, friction body, brake pad and preparation method of friction material |
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