CN106825579B - A kind of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring and its manufacturing method - Google Patents

A kind of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring and its manufacturing method Download PDF

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CN106825579B
CN106825579B CN201710039044.9A CN201710039044A CN106825579B CN 106825579 B CN106825579 B CN 106825579B CN 201710039044 A CN201710039044 A CN 201710039044A CN 106825579 B CN106825579 B CN 106825579B
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copper
core plate
steel core
cone
powder metallurgy
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CN106825579A (en
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韦佳
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Zhejiang Dongjiang Friction Materials Co., Ltd.
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ZHEJIANG DONGJIANG FRICTION MATERIALS CO Ltd
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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
    • 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
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Operated Clutches (AREA)
  • Powder Metallurgy (AREA)

Abstract

The present invention relates to a kind of double-cone synchronizers, more particularly, to a kind of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring and its manufacturing method.It is to guarantee it with excellent friction and wear behavior that it, which mainly solves copper-base powder metallurgy dual-cone synchronous ring present in the prior art, nonmetallic constituent element content is high in its formula, material matrix brittleness is big, therefore stretch that tapered performance is poor, the technical problem that when powder metallurgy friction material and steel core plate synchronous forming is scaling-off, thickness is different, taper, circularity, change in size are big etc..The present invention includes steel core plate (1), the steel core plate (1) is annular, its conicity angles alpha is 14-22 °, two side external surfaces of steel core plate are designed with copper-based frictional layer (2), the edge of steel core plate is equipped with locating piece (3), location hole (4) are provided on steel core plate at locating piece, if the outer surface of copper-based frictional layer is provided with dry sump (5).

Description

A kind of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring and its manufacturing method
Technical field
The present invention relates to a kind of double-cone synchronizers, synchronous more particularly, to a kind of double-cone synchronizer copper-base powder metallurgy bipyramid Ring and its manufacturing method.
Background technique
Synchronizer is one of the important component in transmission for vehicles.Synchronizer manufacturing enterprise has developed a kind of synchronization in recent years Performance is higher, gear shifting force is smaller, the stronger synchronizer of bearing capacity --- double-cone synchronizer.It is wherein sintered in dual-cone synchronous ring New and effective copper based powder metallurgy friction material on the conical surface plays an important role to improve the performance of synchronizer.Due to copper The particularity of base powder metallurgy dual-cone synchronous ring production technology, double-cone synchronizer to its in addition to require extremely low rate of wear and Durability, dynamic friction coefficient it is high and stablize, lower coefficient of friction it is quiet it is dynamic than, high energy charge and pressure load can be born Outside characteristic, also need have the tapered characteristic of good cold stretch.It is reported that some domestic enterprises have carried out grinding for long period It makes and tackles problems, eventually because scaling-off when its friction material is synchronous with steel core plate tapered, thickness is different, taper, circularity, size become Change big and can not be produced in batches.
Summary 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 manufacturing method, is mainly Solving copper-base powder metallurgy dual-cone synchronous ring present in the prior art is to guarantee that it, with excellent friction and wear behavior, is matched Nonmetallic constituent element content is high in side, and material matrix brittleness is big, therefore the tapered performance of stretching is poor, powder metallurgy friction material and steel The technical problem scaling-off when core plate synchronous forming, thickness is different, taper, circularity, change in size are big etc..
Above-mentioned technical problem of the invention is mainly to 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, the steel core plate For annular, conicity angles alpha is 14-22 °, and two side external surfaces of steel core plate, which are all sintered, copper-based frictional layer, and the edge of steel core plate is set There is locating piece, be provided with location hole on the steel core plate at locating piece, if the outer surface of copper-based frictional layer is provided with dry sump.
A kind of manufacturing method of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring, the method include:
A. using 65Mn cold-rolled strip as steel core plate, 840-860 DEG C of the spheroidizing temperature of steel core plate keeps the temperature 50- 60min, furnace are as cold as 740-760 DEG C, keep the temperature 3.5-4h, come out of the stove after being furnace-cooled to 650-660 DEG C into holding pit Slow cooling；
B. one layer is sprinkled on the two sides of steel core plate using duster and play the tin bronze powder of cementation, then sprinkle one layer of copper Base frication material layer, the wherein composition and mass percent of copper base friction material layer are as follows: -200 mesh electrolytic copper powder 40-45%, -300 Mesh is 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, suppresses copper-based frictional layer with hydraulic press, close Spend 4.3-5.3g/cm3, then it is transferred to sintering process, 700-800 DEG C is heated in bell-type furnace, inner cover self weight pressurization, heat preservation 1- 2h carries out alloying sintering, carries out finishing plane, in hydraulic press after coming out of the stove with a thickness of tolerance, density 5.1-5.3g/ on finished product cm3；
D. stretch processing twice is carried out to the steel core plate that sintering is completed, stretches the conicity angles alpha 23- for making steel core plate for the first time 28 °, second of stretching makes 14-22 ° of conicity angles alpha of steel core plate, then uses particular manufacturing craft in two side external surfaces of steel core plate Suppress oil groove；
E. high-frequency quenching carried out in high-frequency induction equipment to the locating piece on steel core plate, surface hardness HRC45-52, most Carry out precision truing on hydraulic press again afterwards, after finishing, friction material conical surface straightness is less than 0.03mm, and circularity is less than 0.05mm, inside and outside 9 degree of conical surfaces cone angle difference are less than ± 8 ', finally copper-base powder metallurgy dual-cone synchronous ring finished product out.
Steel core plate is made of 65Mn cold-rolled strip blanking.Since steel core plate needs to have excellent plasticity, toughness and excellent Good cold stretch forming property (drawing force is minimum), it is minimum to the influence that copper based powder metallurgy friction material layer is tapered, thus it is right Steel core plate carries out spheroidizing processing.Steel core plate is through this processing, and tissue is sufficiently changed into globular pearlite, i.e., in ferrite base It is uniform-distribution with pelletiod carbide on body, is good spheroidizing tissue.Since 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 processing of steel core plate.Simultaneously Since 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 copper-based powder metallurgy friction material as friction material layer. Its harsh working condition requirement rate of wear index is, dynamic friction coefficient between 0.08~0.10, confficient of static friction 0.12~ Between 0.15, while it can satisfy the requirement of drawing process.Since the synchronous ring product of powder metallurgy finally uses cold drawing stretching process At cone, therefore the plastic deformation ability that friction material must have, to meet the requirement of cold drawing stretching process.With preferable friction The wet type copper base friction material of polishing machine all contains higher nonmetallic constituent element, and material fragility is big, and plasticity is poor.Therefore, it obtains The wet type copper base friction material of good cold stretch performance is the key problem in technology developed.
The technique density (porosity) of material largely affects the friction and wear behavior of Wet-type friction material.It is high The material of the abrasion all with higher of the material of technique density and low technique density, medium technique density has lower abrasion. For identified matrix in density and ferroxyl test, and under the experimental condition determined by density and porosity research, work It is 25-31% that skill density, which takes 5.2-5.6(theoretic porosity) when, material has best abrasion resistance properties.
Material of the invention must have high matrix strength, to meet the high ratio pressure of its high wear resistance, receiving and resist The requirement of shock loading ability.Therefore tin, kirsite constituent element is used to strengthen Copper substrate；Material can only contain lower content Nonmetallic constituent element meets the requirement of cold deep-drawing technique to guarantee that it has enough plasticity, guarantees it during being drawn into cone not It is destroyed；Material is after the content for largely reducing the nonmetallic constituent element such as graphite, oxide, friction and wear behavior and heat resistance Greater loss will be had.To meet its high friction and wear behavior requirement, the porosity for properly increasing material is a good method. According to boundary friction theory, the oil stored in micro- stomata will change the friction and wear behavior of material；High porosity makes material With the interconnected pore that can be carried out interior oil microcirculation, the heat that it can generate material in friction process is taken away rapidly, is had Effect inhibits interface temperature rise, improves the energy charge and power load of material.High porosity can be such that the matrix strength of material declines, It may cause the increase of abrasion；On the other hand, high porosity is conducive to the formation of frictional interface oil mould, material can be made to be in Boundary friction avoids semi-dry friction, reduces the abrasion of material.Therefore major test research, choosing need to be carried out to the porosity of material It selects a suitable porosity ranges and it is destroyed when avoiding drawing and forming.
Material is since -200 mesh electrolytic copper powder of use and -300 mesh are atomized thin brass powder, so that in the matrix that sintering is formed Hole is more tiny, and distribution is more uniform, is conducive to the raising of dynamic friction coefficient；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 used simultaneously, so that being dispersed in material matrix micro- hard Higher phase is spent, the tapered performance of the cold stretch with material.
Dusting sintering process is different from traditional pressure firing technique, and the characteristics of dusting sintering process is the sintering material to low-density The density of material, porosity control are more accurate than pressure firing technique, effective.Dusting sintering, bell-type furnace sintering are in ammonolysis craft protective gas It carries out, to guarantee that its body is not oxidized.The two-sided sintering of 65Mn steel plate is set to have the bipyramid of copper based powder metallurgy friction material same It is tapered to walk ring, and reaches the requirement of precision and friction and wear behavior, removes on the basis of solving above-mentioned key technology, forming Technique is most important.Through repetition test, it is double successfully to produce copper-base powder metallurgy using the tapered technique of multistage cold stretch for we Bore synchronous ring.
Preferably, the dynamic friction coefficient of the copper-based frictional layer is in 0.0784-0.0836, mean coefficient of kinetic sliding friction is 0.081；Confficient of static friction is 0.146 in 0.142-0.153, average confficient of static friction；Average wear rate is 8.70 × 10-9mm3/ J, the average wear rate to pairing steel sheet are 1.40 × 10-9mm3/J。
Preferably, described first mix powder machine to each materials'use 200Kg bipyramid for forming copper-based frictional layer before dusting Carry out mixed powder.
Therefore, -200 mesh electrolytic copper powder of use 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 subtle and uniform distribution, it is made to have higher dynamic friction system Several and abrasion resistance properties, the tapered performance of the stretching that microhardness can be such that its cylinder block strength has had are stretched into using multistage cold drawing Taper technique is to solve that powder metallurgy friction material and when steel core plate synchronous forming are scaling-off, thickness is different, taper, circularity, size Change big technology to guarantee, high-frequency quenching is carried out in fixture, keeps its deformation minimum, it is ensured that finishing procedure smoothly completes.
Detailed description of the invention
Attached drawing 1 is a kind of structural schematic diagram of the invention；
Attached drawing 2 is the A-A the schematic diagram of the section structure of Fig. 1；
Attached drawing 3 is schematic perspective view of the invention；
Attached drawing 4 is the expanded schematic diagram of core plate of the present invention；
Attached drawing 5 is first time stretch forming figure of the invention；
Attached drawing 6 is second of stretch forming figure of the invention；
Attached drawing 7 be -200 mesh electrolytic copper powder of use of the present invention, the atomization thin brass powder of -300 mesh formula amplify 200 times aobvious Micro-assembly robot figure.
Components, position and number in figure: steel core plate 1, copper-based frictional layer 2, locating piece 3, location hole 4, oil groove 5.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
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 are annular, and 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 equipped with locating piece 3, location hole 4 is provided on 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 manufacturing method of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring, step include:
A. after deburring, spheroidizing processing is carried out to steel core plate using 65Mn cold-rolled strip as steel core plate such as Fig. 4, 850 DEG C of the annealing temperature of steel core plate keeps the temperature 55min, and furnace is as cold as 750 DEG C, keeps the temperature 3.8h, comes out of the stove after being furnace-cooled to 655 DEG C into guarantor Temperature hole Slow cooling, then carry out copper facing；
B. powder machine is mixed using 200Kg bipyramid mix powder；One layer, which is sprinkled, on the two sides of steel core plate using 320mm duster plays bonding The tin bronze powder of effect, then one layer of copper-based frictional layer is sprinkled, wherein the composition and mass percent of copper-based frictional layer are as follows: -200 Mesh electrolytic 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 Zirconium silicate 4%, technique density 6g/cm3, theoretic porosity 20%；The dynamic friction coefficient of copper-based frictional layer in 0.0784-0.0836, Mean coefficient of kinetic sliding friction is 0.081；Confficient of static friction is 0.146 in 0.142-0.153, average confficient of static friction；Average wear Rate is 8.70 × 10-7mm3/ J, the average wear rate to pairing steel sheet are 1.40 × 10-7mm3/ J, micro- group of copper-based frictional layer It is as shown in Figure 7 to knit figure；
C. the steel core plate after dusting is pre-sintered through meshbeltfurnace, is transferred to suppression process, suppresses friction material with 100T hydraulic press Layer, density 4.8g/cm3, then it is transferred to sintering process, 760 DEG C, inner cover self weight pressurization, heat preservation are heated in Φ 550mm bell-type furnace 1.5h is sintered, and carries out finishing plane, in 200T hydraulic press after coming out of the stove with a thickness of tolerance, density 5.2g/cm on finished product3；
D. stretch processing twice is carried out to the steel core plate with copper-based frictional layer that sintering is completed, such as Fig. 5, stretch makes for the first time The conicity angles alpha of steel core plate is 26 °, and such as Fig. 6, second of stretching makes 18 ° of conicity angles alpha of the steel core plate with copper-based frictional layer, so Two side external surfaces using particular manufacturing craft in the steel core plate with copper-based frictional layer suppress oil groove afterwards；
E. high-frequency quenching carried out in high-frequency induction equipment to the locating piece on steel core plate, surface hardness HRC45-52, most Carry out precision truing on hydraulic press again afterwards, after finishing, friction material conical surface straightness is less than 0.03mm, and circularity is less than 0.05mm, inside and outside 9 degree of conical surfaces cone angle difference are less than ± 8 ', finally go out the copper-base powder metallurgy dual-cone synchronous ring finished product such as Fig. 1.
Above is only a specific embodiment of the present invention, but structure feature of the invention is not limited thereto, Ren Heben Within the field of the present invention, made changes or modifications all cover within the scope of the patent of the present invention the technical staff in field.

Claims (3)

1. a kind of manufacturing method of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring, it is characterised in that the method packet It includes:
A. using 65Mn cold-rolled strip as steel core plate, 840-860 DEG C of the spheroidizing temperature of steel core plate keeps the temperature 50-60min, Furnace is as cold as 740-760 DEG C, keeps the temperature 3.5-4h, comes out of the stove after being furnace-cooled to 650-660 DEG C into holding pit Slow cooling；
B. one layer is sprinkled on the two sides of steel core plate using duster and play the tin bronze powder of cementation, then sprinkle one layer and copper-based rub Layer is wiped, wherein the composition and mass percent of copper-based frictional layer are as follows: -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, suppresses copper-based frictional layer, density with hydraulic press 4.3-5.3g/cm3, then it is transferred to sintering process, 700-800 DEG C is heated in bell-type furnace, inner cover self weight pressurization, heat preservation 1-2h It is sintered, carries out finishing plane, in hydraulic press after coming out of the stove with a thickness of tolerance, density 5.1-5.3g/cm on finished product3；
D. the steel core plate with copper-based frictional layer is completed to sintering and carries out stretch processing twice, stretch makes its conicity angles alpha for the first time 23-28 °, second of stretching makes 14-22 ° of its conicity angles alpha, is then suppressed in two side external surfaces of copper-based frictional layer using mold Oil groove out；
E. high-frequency quenching carried out in high-frequency induction equipment to the locating piece on steel core plate, surface hardness HRC45-52, finally again Precision truing is carried out on hydraulic press, after finishing, friction material conical surface straightness 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 ', and finally copper-base powder metallurgy dual-cone synchronous ring finished product, the synchronization ring include out Steel core plate (1), steel core plate (1) are annular, and conicity angles alpha is 14-22 °, and two side external surfaces of steel core plate are designed with copper-based friction The edge of layer (2), steel core plate is equipped with locating piece (3), is provided with location hole (4) on the steel core plate at locating piece, copper-based frictional layer If outer surface is provided with dry sump (5).
2. a kind of manufacturing method of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring according to claim 1, special Sign is the dynamic friction coefficient of the copper-based frictional layer in 0.0784-0.0836, mean coefficient of kinetic sliding friction 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。
3. a kind of manufacturing method of double-cone synchronizer copper-base powder metallurgy dual-cone synchronous ring according to claim 1, special It levies and mixed powder first is carried out to the mixed powder machine of each materials'use 200Kg bipyramid for forming copper-based frictional layer before dusting described in being.
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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
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Citations (6)

* Cited by examiner, † Cited by third party
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
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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006070953A (en) * 2004-08-31 2006-03-16 Nippon Piston Ring Co Ltd Synchronizer ring

Patent Citations (6)

* Cited by examiner, † Cited by third party
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
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

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