CN106825579A - A kind of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring and its manufacture method - Google Patents
A kind of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring and its manufacture method Download PDFInfo
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- CN106825579A CN106825579A CN201710039044.9A CN201710039044A CN106825579A CN 106825579 A CN106825579 A CN 106825579A CN 201710039044 A CN201710039044 A CN 201710039044A CN 106825579 A CN106825579 A CN 106825579A
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 30
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 61
- 239000010959 steel Substances 0.000 claims abstract description 61
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000010949 copper Substances 0.000 claims abstract description 37
- 229910052802 copper Inorganic materials 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000002783 friction material Substances 0.000 claims abstract description 20
- 238000005245 sintering Methods 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 11
- 238000010410 dusting Methods 0.000 claims description 9
- 229910001369 Brass Inorganic materials 0.000 claims description 7
- 239000010951 brass Substances 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000011812 mixed powder Substances 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000010791 quenching Methods 0.000 claims description 4
- 230000000171 quenching effect Effects 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000010583 slow cooling Methods 0.000 claims description 3
- 230000001629 suppression Effects 0.000 claims description 3
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 abstract description 8
- 239000000470 constituent Substances 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 238000005275 alloying Methods 0.000 description 1
- 238000005915 ammonolysis reaction Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004089 microcirculation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- IMNMWKFKHDPTSB-UHFFFAOYSA-N silicic acid zirconium Chemical compound [Zr].[Si](O)(O)(O)O IMNMWKFKHDPTSB-UHFFFAOYSA-N 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000007704 transition Effects 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/025—Synchro rings
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/16—Both compacting and sintering in successive or repeated steps
-
- 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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
- B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
- C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/32—Soft annealing, e.g. spheroidising
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- 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
- C22C9/00—Alloys based on copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/02—Alloys based on copper with tin as the next major constituent
-
- 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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
- B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
- B22F2007/042—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal characterised by the layer forming method
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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
- F16D2200/0008—Ferro
- F16D2200/0021—Steel
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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
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0023—Shaping by pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Powder Metallurgy (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The present invention relates to a kind of double-cone synchronizer, more particularly, to a kind of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring and its manufacture method.It is to ensure that it has excellent friction and wear behavior that it is mainly the copper-base powder metallurgy dual-cone synchronous ring solved existing for prior art, nonmetallic constituent element content is high in its formula, material matrix fragility is big, therefore tapered poor performance is stretched, the technical problem that scaling-off, thickness differs when powder metallurgy friction material is with steel core plate synchronous forming, taper, circularity, change in size are big etc..The present invention includes steel core plate（1）, described steel core plate（1）It is annular, its conicity angles alpha is 14 22 °, and two side external surfaces of steel core plate are designed with copper-based frictional layer（2）, the edge of steel core plate is provided with locating piece（3）, location hole is provided with the steel core plate at locating piece（4）If the outer surface of copper-based frictional layer is provided with dry sump（5）.
Description
Technical field
The present invention relates to a kind of double-cone synchronizer, more particularly, to a kind of double-cone synchronizer copper-base powder metallurgy bipyramid synchronization
Ring and its manufacture method.
Background technology
Synchronizer is one of important component in transmission for vehicles.Synchronizer manufacturing enterprise have developed a kind of net synchronization capability in recent years
The synchronizer that higher, gear shifting force is smaller, bearing capacity is stronger --- double-cone synchronizer.Wherein it is sintered in the dual-cone synchronous ring conical surface
On new and effective copper based powder metallurgy friction material, for improve synchronizer performance play an important role.Due to copper-based powder
The particularity of last metallurgy dual-cone synchronous ring production technology, double-cone synchronizer is to it except requiring with extremely low rate of wear and durable
Property, the coefficient of kinetic friction are high and stablize, the quiet dynamic ratio of relatively low coefficient of friction, characteristic that energy charge high and pressure load can be born
Outward, also need possess the tapered characteristic of good cold stretch.It is reported that domestic some enterprises have carried out the development of long period simultaneously
Tackle problems, eventually because when its friction material is synchronous with steel core plate tapered scaling-off, thickness differ, taper, circularity, change in size it is big
And cannot be produced in batches.
The content of the invention
The present invention is to provide a kind of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring and its manufacture method, and it is mainly
It is to ensure that it has excellent friction and wear behavior to solve the copper-base powder metallurgy dual-cone synchronous ring existing for prior art, and it is matched somebody with somebody
Nonmetallic constituent element content is high in side, and material matrix fragility is big, therefore stretches tapered poor performance, powder metallurgy friction material and steel
The technical problem that scaling-off, thickness differs during core plate synchronous forming, taper, circularity, change in size are big etc..
Above-mentioned technical problem of the invention is mainly what is be addressed by following technical proposals：
A kind of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring of the invention, including steel core plate, described steel core plate are ring
Shape, its conicity angles alpha is 14-22 °, and two side external surfaces of steel core plate have all sintered copper-based frictional layer, and the edge of steel core plate is provided with fixed
Position block, is provided with location hole, if the outer surface of copper-based frictional layer is provided with dry sump on the steel core plate at locating piece.
A kind of manufacture method of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring, described method includes：
A. using 65Mn cold-rolled strips as steel core plate, 840-860 DEG C of the spheroidizing temperature of steel core plate is incubated 50-60min,
Stove is as cold as 740-760 DEG C, is incubated 3.5-4h, and stove is cooled to 650-660 DEG C and comes out of the stove later into holding pit Slow cooling；
B. spread last layer on the two sides of steel core plate using duster and play the tin bronze powder of cementation, then spread that last layer is copper-based to rub
Material layer is wiped, the composition and mass percent of wherein copper base friction material layer are：- 200 mesh electrolytic copper powder 40-45%, -300 mesh mists
Change thin brass powder 38-43%, -200 mesh glass putty 5-10%, -299 mesh graphite powder 2-6%, -200 mesh zirconium silicate 2-6%；
C. the steel core plate after dusting is pre-sintered through meshbeltfurnace, is transferred to suppression process, and copper-based frictional layer, density are suppressed with hydraulic press
4.3-5.3g/cm3, then sintering circuit is transferred to, 700-800 DEG C, inner cover deadweight pressurization, insulation 1-2h are heated in clock hood type furnace
Alloying sintering is carried out, it is tolerance, density 5.1-5.3g/cm on finished product to carry out finishing plane, thickness in hydraulic press after coming out of the stove3；
D. stretch processing twice is carried out to the steel core plate that sintering is completed, stretching for the first time makes the conicity angles alpha of steel core plate be 23-28 °,
Second stretching makes the conicity angles alpha of steel core plate be 14-22 °, and then two side external surfaces using particular manufacturing craft in steel core plate are suppressed
Go out oil groove；
E. high-frequency quenching is carried out in high-frequency induction equipment to the locating piece on steel core plate, case hardness HRC45-52, again finally
Precision truing is carried out on hydraulic press, after finishing, its friction material conical surface linearity is less than 0.03mm, and circularity is less than 0.05mm,
Inside and outside 9 degree of conical surface cone angles difference is less than ± 8 ', finally goes out copper-base powder metallurgy dual-cone synchronous ring finished product.
Steel core plate is made of the cold Rolling steel bands blankings of 65Mn.Because steel core plate needs to have excellent plasticity, toughness and excellent
Good cold stretch forming property（Tensile force is minimum）, it is minimum to the copper based powder metallurgy friction material tapered influence of layer, thus it is right
Steel core plate carries out spheroidizing treatment.Steel core plate is processed through this, and its tissue is fully changed into globular pearlite, i.e., in ferrite base
Pelletiod carbide is uniform-distribution with body, is good spheroidizing tissue.Because ferrite matrix hardness is low, plastic deformation
Ability is strong, and the pelletiod carbide factor of stress concentration is low, and deformation drag is small, is conducive to the cold deformation of steel core plate to process.Simultaneously
Because the plasticity and toughness of steel core plate are greatly improved, it is poor to reduce cone up-down stretch power, is conducive to copper-base powder metallurgy
The solution of the big problem of friction material layer porosity change.
Copper-base powder metallurgy dual-cone synchronous ring is using Wet-type copper based powder metallurgy friction material as friction material layer.
Its harsh working condition requirement rate of wear index is, the coefficient of kinetic friction between 0.08~0.10, confficient of static friction 0.12~
Between 0.15, while disclosure satisfy that the requirement of drawing process.Because powder metallurgy synchronization ring product finally uses cold drawn stretching process
Into cone, therefore the plastic deformation ability that friction material must have, to meet the requirement of cold drawn stretching process.With preferably friction
The wet type copper base friction material of polishing machine all contains nonmetallic constituent element higher, and material fragility is big, and plasticity is poor.Therefore, obtain
The wet type copper base friction material of good cold stretch performance is the key problem in technology developed.
The technique density of material（Porosity）Largely affect the friction and wear behavior of Wet-type friction material.It is high
The material of technique density and low technique density all has abrasion higher, and the material of medium technique density has relatively low abrasion.
For identified matrix in density and ferroxyl test, and under experimental condition determined by density and porosity research, work
Skill density takes 5.2-5.6（Theoretic porosity is 25-31%）When, material has best abrasion resistance properties.
Material of the invention must have matrix strength high, be pressed and anti-with meeting its high wear resistance, bearing ratio high
The requirement of shock loading ability.Therefore Copper substrate is strengthened using tin, kirsite constituent element；Material can only contain lower content
Nonmetallic constituent element, to ensure that it has enough plasticity, meets the requirement of cold deep-drawing technique, it is ensured that its be drawn into cone during not
It is destroyed；Material after a large amount of contents for reducing the nonmetallic constituent elements such as graphite, oxide, its friction and wear behavior and heat resistance
Greater loss will be had.To meet its friction and wear behavior requirement high, the porosity for properly increasing material is a good method.
Theoretical according to boundary friction, the oil stored in micro- stomata will change the friction and wear behavior of material；Porosity high makes material
With the interconnected pore that can carry out interior oil microcirculation, the heat that it can produce material in friction process is taken away rapidly, is had
Effect suppresses interface temperature rise, improves the energy charge and power load of material.Porosity high can decline the matrix strength of material,
The increase of abrasion may be caused；On the other hand, porosity high is conducive to the formation of frictional interface oil mould, can be in material
Boundary friction, it is to avoid semi-dry friction, reduces the abrasion of material.Therefore major test research need to be carried out to the porosity of material, is selected
Select a suitable porosity ranges and it is destroyed when avoiding drawing and forming.
Material is atomized thin brass powder due to the mesh of use -200 electrolytic copper powder and -300 mesh so that in the matrix that sintering is formed
Hole is more tiny, and distribution is more uniform, is conducive to the raising of the coefficient of kinetic friction；Static friction system is slightly reduced using fine graphite powders
Number（Pause and transition in rhythm or melody sense when reducing synchronous）；- 300 thin brass powders of atomization for using simultaneously so that be dispersed with material matrix micro- hard
The phase of Du Genggao, the tapered performance of cold stretch with material.
The characteristics of dusting sintering process is different from traditional pressure firing technique, dusting sintering process is the sintering material to low-density
Density, the porosity control ratio pressure firing technique of material are precisely, effectively.Dusting sintering, clock hood type furnace are sintered in ammonolysis craft protective gas
Carry out, it is not oxidized to ensure its body.The two-sided sintering of 65Mn steel plates is set to have the bipyramid of copper based powder metallurgy friction material same
Step ring is tapered, and reaches the requirement of precision and friction and wear behavior, except on the basis of above-mentioned key technology is solved, it shapes
Technique is most important.Through repetition test, we successfully produce copper-base powder metallurgy double using the tapered technique of multistage cold stretch
The synchronous ring of cone.
Preferably, the coefficient of kinetic friction of described copper-based frictional layer is in 0.0784-0.0836, mean coefficient of kinetic sliding friction is
0.081；In 0.142-0.153, average confficient of static friction is 0.146 to confficient of static friction；Average wear rate is 8.70 × 10-9mm3/
J, the average wear rate to pairing steel sheet is 1.40 × 10-9mm3/J。
Preferably, described first mixes powder machine before dusting to each materials'use 200Kg bipyramids for constituting copper-based frictional layer
Carry out mixed powder.
Therefore, the mesh of use -200 electrolytic copper powder of the present invention and the thin brass powder of atomization and dusting sintering process, powder metallurgy
Friction material porosity is maintained at 30% or so, while hole is in trickle and uniform distribution, it is had dynamic friction system higher
Number and abrasion resistance properties, microhardness can make the tapered performance of the stretching that its cylinder block strength has had, and be stretched into using multistage is cold drawn
Taper technique, be when solving powder metallurgy friction material and steel core plate synchronous forming scaling-off, thickness differ, taper, circularity, size
The big technology guarantee of change, carries out high-frequency quenching in fixture, makes its deformation minimum, it is ensured that finishing procedure is smoothly completed.
Brief description of the drawings
Accompanying drawing 1 is a kind of structural representation of the invention；
Accompanying drawing 2 is the A-A cross-sectional views of Fig. 1；
Accompanying drawing 3 is dimensional structure diagram of the invention；
Accompanying drawing 4 is the expanded schematic diagram of core plate of the present invention；
Accompanying drawing 5 is first time stretch forming figure of the invention；
Accompanying drawing 6 is second stretch forming figure of the invention；
Accompanying drawing 7 is the mesh of use -200 electrolytic copper powder of the present invention, is atomized micro- group that is formulated 200 times of amplification of the thin brass powder of -300 mesh
Knit figure.
Parts, position and numbering in figure：Steel core plate 1, copper-based frictional layer 2, locating piece 3, location hole 4, oil groove 5.
Specific embodiment
Below by embodiment, and with reference to accompanying drawing, technical scheme is described in further detail.
Embodiment：A kind of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring of this example, as shown in Figure 1, Figure 2, Fig. 3, including
Steel core plate 1, steel core plate is annular, and its conicity angles alpha is 14-22 °, and two side external surfaces of steel core plate are designed with copper-based frictional layer 2, steel
The edge of core plate is provided with locating piece 3, and location hole 4 is provided with the steel core plate at locating piece, if the outer surface of copper-based frictional layer is provided with
Dry sump 5.
A kind of manufacture method of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring, its step includes：
A. such as Fig. 4, using 65Mn cold-rolled strips as steel core plate, after deburring, spheroidizing treatment, steel core are carried out to steel core plate
850 DEG C of the annealing temperature of plate, is incubated 55min, and stove is as cold as 750 DEG C, is incubated 3.8h, and stove is cooled to 655 DEG C and comes out of the stove later into holding pit
Slow cooling, then carry out copper facing；
B. the 200Kg bipyramids mixed powder of mixed powder machine is used；Last layer is spread on the two sides of steel core plate play cementation using 320mm dusters
Tin bronze powder, then the copper-based frictional layer of last layer is spread, wherein the composition and mass percent of copper-based frictional layer are：- 200 mesh electricity
Solution copper powder 43.62%, -300 mesh are atomized thin brass powder 41.38%, -200 mesh glass puttys 7%, -299 mesh graphite powders 4%, -200 mesh silicic acid
Zirconium 4%, technique density 6g/cm3, theoretic porosity 20%；The coefficient of kinetic friction of copper-based frictional layer in 0.0784-0.0836, averagely
The coefficient of kinetic friction is 0.081；In 0.142-0.153, average confficient of static friction is 0.146 to confficient of static friction；Average wear rate is
8.70×10-7mm3/ J, the average wear rate to pairing steel sheet is 1.40 × 10-7mm3/ J, the micro-organization chart of copper-based frictional layer
As shown in Figure 7；
C. the steel core plate after dusting is pre-sintered through meshbeltfurnace, is transferred to suppression process, and friction material layer is suppressed with 100T hydraulic presses, close
Degree 4.8g/cm3, then sintering circuit is transferred to, 760 DEG C of heating, inner cover deadweight pressurization, insulation 1.5h in Φ 550mm clock hood type furnaces
It is sintered, it is tolerance, density 5.2g/cm on finished product to carry out finishing plane, thickness in 200T hydraulic presses after coming out of the stove3；
The steel core plate of the copper-based frictional layer of band for d. being completed to sintering carries out stretch processing twice, such as Fig. 5, and stretching for the first time makes steel core
The conicity angles alpha of plate is 26 °, such as Fig. 6, and second stretching makes the conicity angles alpha of the steel core plate with copper-based frictional layer be 18 °, then makes
Two side external surfaces with particular manufacturing craft in the steel core plate of the copper-based frictional layer of band suppress oil groove；
E. high-frequency quenching is carried out in high-frequency induction equipment to the locating piece on steel core plate, case hardness HRC45-52, again finally
Precision truing is carried out on hydraulic press, after finishing, its friction material conical surface linearity is less than 0.03mm, and circularity is less than 0.05mm,
Inside and outside 9 degree of conical surface cone angles difference is less than ± 8 ', finally goes out the copper-base powder metallurgy dual-cone synchronous ring finished product such as Fig. 1.
Specific embodiment of the invention is the foregoing is only, but architectural feature of the invention is not limited thereto, Ren Heben
The technical staff in field in the field of the invention, all cover among the scope of the claims of the invention by the change or modification made.
Claims (4)
1. a kind of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring, including steel core plate（1）, it is characterised in that described steel core
Plate（1）It is annular, its conicity angles alpha is 14-22 °, and two side external surfaces of steel core plate are designed with copper-based frictional layer（2）, steel core plate
Edge is provided with locating piece（3）, location hole is provided with the steel core plate at locating piece（4）, the outer surface of copper-based frictional layer is provided with some
Oil groove（5）.
2. a kind of manufacture method of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring, it is characterised in that described method bag
Include：
A. using 65Mn cold-rolled strips as steel core plate, 840-860 DEG C of the spheroidizing temperature of steel core plate is incubated 50-60min,
Stove is as cold as 740-760 DEG C, is incubated 3.5-4h, and stove is cooled to 650-660 DEG C and comes out of the stove later into holding pit Slow cooling；
B. spread last layer on the two sides of steel core plate using duster and play the tin bronze powder of cementation, then spread that last layer is copper-based to rub
Layer is wiped, wherein the composition and mass percent of copper-based frictional layer are：- 200 mesh electrolytic copper powder 40-45%, -300 mesh are atomized thin brass
Powder 38-43%, -200 mesh glass putty 5-10%, -299 mesh graphite powder 2-6%, -200 mesh zirconium silicate 2-6%；
C. the steel core plate after dusting is pre-sintered through meshbeltfurnace, is transferred to suppression process, and copper-based frictional layer, density are suppressed with hydraulic press
4.3-5.3g/cm3, then sintering circuit is transferred to, 700-800 DEG C, inner cover deadweight pressurization, insulation 1-2h are heated in clock hood type furnace
It is sintered, it is tolerance, density 5.1-5.3g/cm on finished product to carry out finishing plane, thickness in hydraulic press after coming out of the stove3；
D. completing the steel core plate with copper-based frictional layer to sintering carries out stretch processing twice, and stretching for the first time makes its conicity angles alpha be
23-28 °, second stretching makes its conicity angles alpha for 14-22 °, and then two side external surfaces in copper-based frictional layer are suppressed using mould
Go out oil groove；
E. high-frequency quenching is carried out in high-frequency induction equipment to the locating piece on steel core plate, case hardness HRC45-52, again finally
Precision truing is carried out on hydraulic press, after finishing, its friction material conical surface linearity is less than 0.03mm, and circularity is less than 0.05mm,
The taper angular difference of interior male cone (strobilus masculinus) is less than ± 8 ', finally goes out copper-base powder metallurgy dual-cone synchronous ring finished product.
3. the manufacture method of a kind of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring according to claim 2, it is special
Levy be described copper-based frictional layer the coefficient of kinetic friction in 0.0784-0.0836, mean coefficient of kinetic sliding friction is 0.081；It is quiet to rub
Coefficient is wiped in 0.142-0.153, average confficient of static friction is 0.146；Average wear rate is 8.70 × 10-7mm3/ J, to antithesis steel
The average wear rate of piece is 1.40 × 10-7mm3/J。
4. the manufacture method of a kind of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring according to claim 2, it is special
Levy is that the described mixed powder machine of each materials'use 200Kg bipyramids before dusting first to the copper-based frictional layer of composition carries out mixed powder.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630946A (en) * | 2017-10-09 | 2018-01-26 | 宁波上中下自动变速器有限公司 | A kind of synchronizer ring assembly and synchronizer |
| CN107952877A (en) * | 2017-10-19 | 2018-04-24 | 宁波涵盛智能科技有限公司 | A kind of continuous stamping die and process for stamping of optical fiber crimping set |
| CN108480645A (en) * | 2018-02-07 | 2018-09-04 | 东风商用车有限公司 | Automobile synchronizer ring material and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08219174A (en) * | 1995-02-13 | 1996-08-27 | Sumitomo Electric Ind Ltd | Synchronous ring for transmission and its manufacture |
| US6014807A (en) * | 1996-06-18 | 2000-01-18 | Hyundai Motor Company | Method of manufacturing a double-structure synchronizer ring |
| JP2006070953A (en) * | 2004-08-31 | 2006-03-16 | Nippon Piston Ring Co Ltd | Synchronizer ring |
| CN101666364A (en) * | 2009-09-16 | 2010-03-10 | 重庆江洲粉末冶金科技有限公司 | Copper-base powder metallurgy clutch friction body |
| CN201757169U (en) * | 2010-07-20 | 2011-03-09 | 杭州东江摩擦材料有限公司 | Synchronizing ring of double-cone synchronizer |
| CN102245346A (en) * | 2008-12-11 | 2011-11-16 | 贺尔碧格传动技术控股有限公司 | Method for producing an external synchronizer ring |
| CN205324725U (en) * | 2016-01-07 | 2016-06-22 | 十堰同创传动技术有限公司 | Forming die of bipyramid synchronizer ring frictional layer |
-
2017
- 2017-01-19 CN CN201710039044.9A patent/CN106825579B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08219174A (en) * | 1995-02-13 | 1996-08-27 | Sumitomo Electric Ind Ltd | Synchronous ring for transmission and its manufacture |
| US6014807A (en) * | 1996-06-18 | 2000-01-18 | Hyundai Motor Company | Method of manufacturing a double-structure synchronizer ring |
| JP2006070953A (en) * | 2004-08-31 | 2006-03-16 | Nippon Piston Ring Co Ltd | Synchronizer ring |
| CN102245346A (en) * | 2008-12-11 | 2011-11-16 | 贺尔碧格传动技术控股有限公司 | Method for producing an external synchronizer ring |
| CN101666364A (en) * | 2009-09-16 | 2010-03-10 | 重庆江洲粉末冶金科技有限公司 | Copper-base powder metallurgy clutch friction body |
| CN201757169U (en) * | 2010-07-20 | 2011-03-09 | 杭州东江摩擦材料有限公司 | Synchronizing ring of double-cone synchronizer |
| CN205324725U (en) * | 2016-01-07 | 2016-06-22 | 十堰同创传动技术有限公司 | Forming die of bipyramid synchronizer ring frictional layer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630946A (en) * | 2017-10-09 | 2018-01-26 | 宁波上中下自动变速器有限公司 | A kind of synchronizer ring assembly and synchronizer |
| CN107952877A (en) * | 2017-10-19 | 2018-04-24 | 宁波涵盛智能科技有限公司 | A kind of continuous stamping die and process for stamping of optical fiber crimping set |
| CN108480645A (en) * | 2018-02-07 | 2018-09-04 | 东风商用车有限公司 | Automobile synchronizer ring material and preparation method thereof |
| CN108480645B (en) * | 2018-02-07 | 2021-04-02 | 东风商用车有限公司 | Automobile synchronizer ring material and preparation method thereof |
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Effective date of registration: 20190226 Address after: 311228 Sanxin Village, Xinwan Street, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant after: Zhejiang Dongjiang Friction Materials Co., Ltd. Address before: 311228 Zhejiang Province Hangzhou Xiaoshan District Xinwan Street Sanxincun Hangzhou Dongjiang Friction Material Co., Ltd. Applicant before: Wei Jia |
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