CN110102756A - A kind of high-strength, high-anti-friction cermet and preparation method thereof - Google Patents
A kind of high-strength, high-anti-friction cermet and preparation method thereof Download PDFInfo
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- CN110102756A CN110102756A CN201910450030.5A CN201910450030A CN110102756A CN 110102756 A CN110102756 A CN 110102756A CN 201910450030 A CN201910450030 A CN 201910450030A CN 110102756 A CN110102756 A CN 110102756A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
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- 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
- B22F3/14—Both compacting and sintering simultaneously
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- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
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- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
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- 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
- C22C1/10—Alloys containing non-metals
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/10—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on titanium carbide
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/043—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by ball milling
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- 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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Abstract
The present invention provides a kind of preparation methods of high-strength, high-anti-friction cermet, comprising the following steps: S1. ball-milling treatment；S2. it is granulated；S3. first sintering is handled；S4. second of sintering processes；In the first sintering treatment process, is combined and handled with oscillation hot pressing and sintering technique using traditional vacuum sintering technology.The present invention is at a lower temperature pre-sintered powder using oscillation pressure sintering technology, oscillation pressure can promote the viscous flow of particle re-arrangement and high viscosity Binder Phase, apply pressure during the sintering process, lower using sintering temperature, liquid phase viscosity is larger, effectively liquid phase is avoided to squeeze out from sample；And it is not high using the close pre-burning blank strength of particle packing that the method for the present invention obtains, it is easy to process at specific shape.
Description
Technical field
The invention belongs to high-performance ceramic preparation technical field, in particular to a kind of high-strength, high-anti-friction cermet and its
Preparation method.
Background technique
TiC base metal-ceramic material has the characteristics that the knife that high intensity, high rigidity, wearability are good, are manufactured with cermet
Tool knife not easy to stick when cutting, it is ensured that the processing quality of workpiece has broad application prospects in industrial circle.But
TiC is as strong covalent bond compound, the features such as facing higher sintering temperature and poor toughness.In order to improve above-mentioned performance, usually exist
Metallic cobalt and metallic nickel are added in TiC cermet as Binder Phase reduces sintering temperature, and Mo is added2C、WC、TaC、
The carbide such as NbC, VC improve wetting, refinement crystal grain, improving performance.
Currently, the traditional sintering techniques of TiC base metal-ceramic material include vacuum-sintering, hot pressing and sintering technique and low pressure
HIP sintering technology etc..Vacuum sintering technique does not apply pressure, cannot be the particle re-arrangement and mass transfer in sintering process
Densification provides enough additonal pressures.Static mechanical pressure in hot pressing and sintering technique cannot promote the rearrangement of particle to mention
The bulk density of powder is risen, and when mechanical pressure is applied to the sintering later period, metallic binding phase has melted, mechanical pressure meeting
It flows out Binder Phase from product, influences the homogeneity of ingredients and correlation mechanical property of product, influence answering for TiC base correlated product
With.Lowpressure HIP sintering technology is more demanding to production equipment, is unfavorable for reducing the production cost of premium quality product.
Therefore, it is highly desirable to develop a kind of sintering technology suitable for preparing TiC base metal-ceramic material, solve fine and close
Change and liquid phase flows out this problem, to obtain the high-wear resistant Ti C based ceramic metal that constituent is uniform, mechanical performance is excellent.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation methods of high-strength, high-anti-friction cermet, it is intended to solve existing skill
The technology that there are consistency in TiC base metal-ceramic material sintering process in art is low, homogeneity of ingredients is poor and mechanical property is bad
Problem.
Another object of the present invention is to provide a kind of high-strength, high-anti-friction cermets.
The purpose of the present invention is achieved by the following technical programs:
A kind of preparation method of high-strength, high-anti-friction cermet is provided, comprising the following steps:
S1. ball-milling treatment: raw material is uniformly mixed using ball-milling method, obtains mixture by precise raw material；
S2. it is granulated: the obtained mixture of step S1 being granulated using spray granulation, obtains granulation material；
S3. first sintering is handled: the granulation material of step S2 being put into mold and is placed in sintering furnace, under vacuum atmosphere
First sintering processing is carried out, while applying dynamic oscillation pressure, pre-burning body is obtained after cooling；
S4. it second of sintering processes: carries out the pre-burning body that step S3 is obtained to be processed into required shape, then in vacuum gas
Carried out under atmosphere second of sintering processes to get.
Further, in step S1, the raw material is grouped as by the group of following mass fraction: ceramic powders 95~98%,
Organic bond 2~5%；The partial size of the ceramic powders is 0.5~2 μm.
Further, the ceramic powders include each element of following mass fraction:
Ti:40~50wt.%,
C:15~25wt.%,
W:10~15wt.%,
Co:5~10wt.%,
Nb:1~5wt.%,
Ni:5~10wt.%,
Ta:1~3wt.%.
Further, the organic bond is middle molecule alcohol.
Further, the organic bond is the PVB of molecular weight 30000~100000.
Further, in rapid S1, the technological parameter of the ball-milling treatment are as follows: revolving speed is 50~100r/min, Ball-milling Time
For 12~for 24 hours.
Further, in step S2, the technological parameter of the mist projection granulating are as follows: feeding inlet temperature is 150~250 DEG C, out
Material mouth temperature is 50~120 DEG C, and atomizer rotating speed is 5500~6500r/min.
Further, in step S3, the technological parameter of the first sintering processing are as follows: sintering temperature is 1200~1400
DEG C, soaking time is 30~120min, and constant pressure value 30MPa, the amplitude of oscillation pressure is 1~10MPa, oscillation pressure
Frequency is 2~50Hz, and heating rate is 10~20 DEG C/min, and rate of temperature fall is 8~12 DEG C/min.
Further, in step S4, the technological parameter of second of sintering processes are as follows: sintering temperature is 1400~1500
DEG C, heating rate is 10~20 DEG C/min, and rate of temperature fall is 8~12 DEG C/min, and soaking time is 30~120min.
Further, during first sintering processing and second of sintering processes, the equal < 5Pa of vacuum degree.
The high intensity being prepared the present invention also provides a kind of preparation method of above-mentioned high-strength, high-anti-friction cermet is high
Wear-proof metal ceramic.
The beneficial effect of high-strength, high-anti-friction cermet provided by the invention and preparation method thereof is:
The present invention is at a lower temperature pre-sintered powder using oscillation pressure sintering technology, and dynamic pressure can promote
The viscous flow of particle re-arrangement and high viscosity Binder Phase, should during pressure apply when, sintering temperature is lower, liquid phase viscosity compared with
Greatly, it is not easy to squeeze out from sample.In addition, the close pre-burning blank strength of particle packing that the process obtains is not high, it is easy to process
At specific shape.
The present invention carries out double sintering to green body using vacuum-sintering mode, since first step oscillation pressure obtains green body powder
Body bulk density is higher, and vacuum-sintering temperature is lower, reduces the volatilization of metallic binding phase.
TiC cermet density prepared by the present invention is higher, and intensity reaches 2000MPa, is sintered relative to using traditional vacuum
The intensity and wearability of gained TiC ceramics increase significantly, and obtained cermet long service life can satisfy mechanic
The requirement of industry.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in invention, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the process flow chart that the present invention prepares high-strength, high-anti-friction cermet.
Fig. 2 is the high-strength, high-anti-friction cermet specimens digital photograph being prepared in the embodiment of the present invention 1.
Fig. 3 is the scanning electron microscope (SEM) photograph for the high-strength, high-anti-friction cermet that the embodiment of the present invention 1 is prepared.
Fig. 4 is the energy spectrum diagram for the high-strength, high-anti-friction cermet that the embodiment of the present invention 1 is prepared.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
It should be noted that the orientation or positional relationship of the instructions such as term " on ", "lower", "left", "right" is based on attached drawing institute
The orientation or positional relationship shown is merely for convenience of describing, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore should not be understood as the limitation to this patent.Term " first ", " the
Two " are used merely to facilitate description purpose, are not understood to indicate or imply relative importance or implicitly indicate technical characteristic
Quantity.The meaning of " plurality " is two or more, unless otherwise specifically defined.In addition, term "horizontal", " perpendicular
Directly ", the terms such as " pendency " are not offered as requiring component abswolute level or pendency, but can be slightly tilted.Only such as "horizontal"
Refer to that its direction is more horizontal with respect to for "vertical", is not to indicate that the structure is had to fully horizontally, but it can be slightly
Inclination.
It should also be noted that, unless otherwise clearly defined and limited, term " setting ", " connected ", " connects " installation "
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
Concrete meaning.
In order to illustrate technical solutions according to the invention, it is described in detail below in conjunction with specific accompanying drawings and embodiments.
Embodiment 1
The present embodiment provides a kind of preparation methods of high-strength, high-anti-friction cermet, comprising the following steps:
S1. ball-milling treatment: dehydrated alcohol is added as ball milling Jie in precise TiC based ceramic powder end 980g and PVB 20g
Raw material is uniformly mixed using planetary ball mill, obtains mixture by matter；Wherein, the technological parameter of ball-milling treatment are as follows: revolving speed is
80r/min, Ball-milling Time are for 24 hours；
S2. it is granulated: the obtained mixture of step S1 being granulated using spray granulation, in granulation process, feeding inlet
Temperature is 180 DEG C, and discharge port temperature is 50 DEG C, atomizer rotating speed 5500r/min, obtains the granulation material that granularity is 20 μm；
S3. first sintering handle: by the granulation material of step S2 be put into diameter be 100mm graphite jig in, and by its
It is placed in oscillation hot-pressed sintering furnace, carries out first sintering processing in the case where vacuum degree is the vacuum atmosphere of 4Pa, it is slow with 15 DEG C/min
Slowly 1250 DEG C of sintering temperature, soaking time 30min, constant pressure 30MPa are warming up to, while applying dynamic oscillation pressure
The amplitude of power, oscillation pressure is 10MPa, frequency 5Hz, is then cooled to room temperature with 10 DEG C/min to get pre-burning body；
S4. second of sintering processes: the pre-burning body that step S3 is obtained takes out, and required shape is processed into, then in vacuum
Second of sintering processes is carried out under the vacuum atmosphere that degree is 4Pa, is to slowly warm up to 1420 DEG C of sintering temperature with 15 DEG C/min, heat preservation
Time is 60min, is then cooled to room temperature with 10 DEG C/min to get TiC base metal-ceramic material.
Wherein, in step S1, the partial size at TiC based ceramic powder end is 2 μm, each element including following mass fraction: Ti:
50wt.%, C:15wt.%, W:10wt.%, Co:7wt.%, Nb:5wt.%, Ni:10wt.%, Ta:3wt.%；Point of PVB
Son amount is 30000.
Embodiment 2
The present embodiment provides a kind of preparation method of high-strength, high-anti-friction cermet, referring to the operating procedure of embodiment 1,
Difference from example 1 is that: in step S1, precise TiC based ceramic powder end 950g and PVB 50g；Wherein, TiC
The partial size at based ceramic powder end is 0.5 μm, each element including following mass fraction: Ti:40wt.%, C:25wt.%, W:
The molecular weight of 15wt.%, Co:10wt.%, Nb:1wt.%, Ni:8wt.%, Ta:1wt.%, PVB are 100000；Ball-milling treatment
Technological parameter are as follows: revolving speed 100r/min, Ball-milling Time 12h.
Embodiment 3
The present embodiment provides a kind of preparation method of high-strength, high-anti-friction cermet, referring to the operating procedure of embodiment 1,
Difference from example 1 is that: in step S1, precise TiC based ceramic powder end 960g and PVB 40g；Wherein, TiC
The partial size at based ceramic powder end is 1 μm, each element including following mass fraction: Ti:45wt.%, C:25wt.%, W:
The molecular weight of 14wt.%, Co:5wt.%, Nb:4wt.%, Ni:5wt.%, Ta:2wt.%, PVB are 50000；Ball-milling treatment
Technological parameter are as follows: revolving speed 60r/min, Ball-milling Time 20h.
Embodiment 4
The present embodiment provides a kind of preparation method of high-strength, high-anti-friction cermet, referring to the operating procedure of embodiment 1,
Difference from example 1 is that: in step S2, the technological parameter of mist projection granulating are as follows: feeding inlet temperature is 150 DEG C, discharging
Mouth temperature is 100 DEG C, atomizer rotating speed 6500r/min.
Embodiment 5
The present embodiment provides a kind of preparation method of high-strength, high-anti-friction cermet, referring to the operating procedure of embodiment 1,
Difference from example 1 is that: in step S2, the technological parameter of mist projection granulating are as follows: feeding inlet temperature is 250 DEG C, discharging
Mouth temperature is 120 DEG C, atomizer rotating speed 6000r/min.
Embodiment 6
The present embodiment provides a kind of preparation method of high-strength, high-anti-friction cermet, referring to the operating procedure of embodiment 1,
Difference from example 1 is that: in step S3, the technological parameter of first sintering processing are as follows: sintering temperature is
1200 DEG C, soaking time 120min, constant pressure value 30MPa, the amplitude of oscillation pressure is 1MPa, the frequency of oscillation pressure
For 50Hz, heating rate is 10 DEG C/min, and rate of temperature fall is 8 DEG C/min.
Embodiment 7
The present embodiment provides a kind of preparation method of high-strength, high-anti-friction cermet, referring to the operating procedure of embodiment 1,
Difference from example 1 is that: in step S3, the technological parameter of first sintering processing are as follows: sintering temperature is
1400 DEG C, soaking time 60min, constant pressure value 30MPa, the amplitude of oscillation pressure is 5MPa, the frequency of oscillation pressure
For 20Hz, heating rate is 20 DEG C/min, and rate of temperature fall is 12 DEG C/min.
Embodiment 8
The present embodiment provides a kind of preparation method of high-strength, high-anti-friction cermet, referring to the operating procedure of embodiment 1,
Difference from example 1 is that: in step S4, the technological parameter of second of sintering processes are as follows: sintering temperature is
1500 DEG C, heating rate is 10 DEG C/min, and rate of temperature fall is 8 DEG C/min, soaking time 30min.
Embodiment 9
The present embodiment provides a kind of preparation method of high-strength, high-anti-friction cermet, referring to the operating procedure of embodiment 1,
Difference from example 1 is that: in step S4, the technological parameter of second of sintering processes are as follows: sintering temperature is
1400 DEG C, heating rate is 20 DEG C/min, and rate of temperature fall is 12 DEG C/min, soaking time 120min.
Comparative example 1
This comparative example provides a kind of preparation method of high-strength, high-anti-friction cermet, referring to the operating procedure of embodiment 1,
Difference from example 1 is that: in step S3, do not apply dynamic oscillation pressure in first sintering treatment process.
Comparative example 2
This comparative example provides a kind of preparation method of high-strength, high-anti-friction cermet, referring to the operating procedure of embodiment 1,
Difference from example 1 is that: in step S3, the amplitude of oscillation pressure is 0.5MPa, frequency 60Hz.
Comparative example 3
This comparative example provides a kind of preparation method of high-strength, high-anti-friction cermet, referring to the operating procedure of embodiment 1,
Difference from example 1 is that: in step S3, the amplitude of oscillation pressure is 12MPa, frequency 1Hz.
Fig. 1 is the process flow chart that the present invention prepares high-strength, high-anti-friction cermet.
Fig. 2 is the high-strength, high-anti-friction cermet specimens digital photograph being prepared in the embodiment of the present invention 1, the product
Surface pore-free defect, bending strength are up to 2000MPa, and hardness reaches 1500HV5, fracture toughness 11MPam1/2。
Fig. 3 is the scanning electron microscope (SEM) photograph of high-strength, high-anti-friction cermet specimens prepared by the embodiment of the present invention 1, and Fig. 4 is this
The energy spectrum diagram for the high-strength, high-anti-friction cermet that inventive embodiments 1 are prepared.From Fig. 3~4 it can be seen that using the present invention
The cermet material surface of sintering method preparation does not have defect, and product is mainly made of C, N, O, Ti, Co, Ni, Mo and W.
Respectively to the TiC base metal-ceramic material properties being prepared in Examples 1 to 9 and comparative example 1~3 into
Row detection, including bending strength, hardness and fracture toughness, specific testing result are shown in Table 1.
Table 1
The present invention will vibrate hot pressing and sintering technique and vacuum sintering technique combines, and carries out at a lower temperature to powder
It being pre-sintered, dynamic pressure can promote the viscous flow of particle re-arrangement and high viscosity Binder Phase, when pressure applies during being somebody's turn to do, sintering
Temperature is lower, and liquid phase viscosity is larger, is not easy to squeeze out from sample, to efficiently solve densification and liquid phase flows out this contradiction
Problem.
TiC cermet density prepared by the present invention is higher, and bending strength reaches 2000MPa, relative to using traditional vacuum
The intensity and wearability of sintering gained TiC ceramics increase significantly, and obtained cermet long service life can satisfy machine
The requirement of tool industry.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or equipment for including a series of elements not only includes those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or equipment institute it is intrinsic
Element.
Used herein a specific example illustrates the principle and implementation of the invention, the explanation of above example
It is merely used to help understand method and its core concept of the invention.The above is only the preferred embodiment of the present invention, should refer to
Out, due to the finiteness of literal expression, and objectively there is unlimited specific structure, for the ordinary skill people of the art
For member, without departing from the principle of the present invention, can also make it is several improve, retouching or variation, can also will be above-mentioned
Technical characteristic is combined in the right way；These improve retouching, variation or combination, or the not improved design by invention and
Technical solution directly applies to other occasions, is regarded as protection scope of the present invention.
Claims (10)
1. a kind of preparation method of high-strength, high-anti-friction cermet, which comprises the following steps:
S1. ball-milling treatment: raw material is uniformly mixed using ball-milling method, obtains mixture by precise raw material；
S2. it is granulated: the obtained mixture of step S1 being granulated using spray granulation, obtains granulation material；
S3. first sintering is handled: the granulation material of step S2 being put into mold and is placed in sintering furnace, is carried out under vacuum conditions
First sintering processing, while applying dynamic oscillation pressure, pre-burning body is obtained after cooling；
S4. second of sintering processes: the pre-burning body that step S3 is obtained is subjected to processing and forms preset shape, then in vacuum item
Carried out under part second of sintering processes to get.
2. the preparation method of high-strength, high-anti-friction cermet as described in claim 1, which is characterized in that described in step S1
Raw material includes each component of following mass fraction: ceramic powders 95~98%, organic bond 2~5%；The ceramic powders
Partial size is 0.5~2 μm.
3. the preparation method of high-strength, high-anti-friction cermet as claimed in claim 2, which is characterized in that the ceramic powders packet
Include each element of following mass fraction:
Ti:40~50wt.%,
C:15~25wt.%,
W:10~15wt.%,
Co:5~10wt.%,
Nb:1~5wt.%,
Ni:5~10wt.%,
Ta:1~3wt.%.
4. the preparation method of high-strength, high-anti-friction cermet as claimed in claim 2, which is characterized in that the organic bond
For middle molecule alcohol.
5. the preparation method of high-strength, high-anti-friction cermet as described in claim 1, which is characterized in that described in step S1
The technological parameter of ball-milling treatment are as follows: revolving speed be 50~100r/min, Ball-milling Time be 12~for 24 hours.
6. the preparation method of high-strength, high-anti-friction cermet as described in claim 1, which is characterized in that described in step S2
The technological parameter of mist projection granulating are as follows: feeding inlet temperature is 150~250 DEG C, and discharge port temperature is 50~120 DEG C, atomizer rotating speed
For 5500~6500r/min.
7. the preparation method of high-strength, high-anti-friction cermet as described in claim 1, which is characterized in that described in step S3
The technological parameter of first sintering processing are as follows: sintering temperature is 1200~1400 DEG C, and soaking time is 30~120min, constant pressure
Force value is 30MPa, and the amplitude of oscillation pressure is 1~10MPa, and the frequency of oscillation pressure is 2~50Hz, and heating rate is 10~20
DEG C/min, rate of temperature fall is 8~12 DEG C/min.
8. the preparation method of high-strength, high-anti-friction cermet as described in claim 1, which is characterized in that described in step S4
The technological parameter of second of sintering processes are as follows: sintering temperature is 1400~1500 DEG C, and heating rate is 10~20 DEG C/min, cooling
Rate is 8~12 DEG C/min, and soaking time is 30~120min.
9. the preparation method of high-strength, high-anti-friction cermet as described in claim 1, which is characterized in that the first sintering
During processing and second of sintering processes, the equal < 5Pa of vacuum degree.
10. a kind of height that the preparation method of the high-strength, high-anti-friction cermet as described in any one of claim 1~9 is prepared
Intensity high abrasion cermet.
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