CN106756422B - A kind of preparation method of diamond saw blade - Google Patents
A kind of preparation method of diamond saw blade Download PDFInfo
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- CN106756422B CN106756422B CN201611079649.2A CN201611079649A CN106756422B CN 106756422 B CN106756422 B CN 106756422B CN 201611079649 A CN201611079649 A CN 201611079649A CN 106756422 B CN106756422 B CN 106756422B
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- 239000010432 diamond Substances 0.000 title claims abstract description 99
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 90
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 128
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical group [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000005245 sintering Methods 0.000 claims abstract description 53
- 229910052786 argon Inorganic materials 0.000 claims abstract description 27
- 239000007789 gas Substances 0.000 claims abstract description 27
- 239000011812 mixed powder Substances 0.000 claims abstract description 25
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 229910052742 iron Inorganic materials 0.000 claims abstract description 11
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 11
- 229910052718 tin Inorganic materials 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 10
- 238000004080 punching Methods 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 14
- 239000000463 material Substances 0.000 abstract description 12
- 238000003825 pressing Methods 0.000 abstract description 11
- 238000009768 microwave sintering Methods 0.000 abstract description 10
- 229910017052 cobalt Inorganic materials 0.000 abstract description 6
- 239000010941 cobalt Substances 0.000 abstract description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 20
- -1 Cu Powder Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 238000009413 insulation Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000007767 bonding agent Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910003978 SiClx Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/04—Alloys containing less than 50% by weight of each constituent containing tin or lead
-
- 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
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
-
- 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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
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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
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
- B22F2003/1054—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding by microwave
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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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
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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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
- C22C2026/006—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes with additional metal compounds being carbides
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Abstract
The present invention relates to a kind of preparation method of diamond saw blade, belong to superhard material preparing technical field.First by the powder of following masses percentage：25%~30%Fe powder, 10%~20%Co powder, 35%~45%Cu powder, 3%~8%Ni powder, 5%~9%Sn powder, 1%~6%SiC powder are well mixed to obtain mixed-powder；Add diamond mixing；Above-mentioned metal dust sum is 100%；Its cutter head diamond concentration is 20%；Obtained mixed-powder addition steel mold pressing is molded to obtain cold pressing cutter head；Obtained cutter head is subjected to microwave vacuum sintering, sintering temperature is 750 DEG C~900 DEG C, and sintering atmosphere is argon gas, is incubated 3~10min, obtains diamond saw blade.This method is mainly to obtain the diamond saw blade of low-cost and high-performance simultaneously using the formula of bottom cobalt with Microwave Sintering Techniques.
Description
Technical field
The present invention relates to a kind of preparation method of diamond saw blade, belong to superhard material preparing technical field.
Background technology
Diamond saw cutting tool includes saw blade, gang saw, rope saw and buhl saw etc., is mainly used in cutting granite, Dali
The nonmetallic materials such as stone and concrete, diamond disc are the main tools of all kinds of processing of stone, are risen in processing of stone industry
Very important effect.With the development of Ornamental Stone Industry, it is desirable to obtain high-performance, the saw blade of low cost.Cobalt-based saw blade has very
Good cutting ability and service life, but cobalt is as a kind of strategic resource, it is expensive, so cobalt is no longer most preferably to select at present
Select.
Sintering is one of important process in saw blade preparation process, and traditional sintering method is mainly burnt using cold pressing-vacuum
Knot and hot pressed sintering.Wherein hot pressed sintering is the most method of current diamond tool production and application, be widely used in manufacture saw blade,
The cutter heads such as drill bit.For traditional hot-pressing sintering technique, although diamond and metal matrix can be improved under high-temperature and high-pressure conditions
Bond strength, but cause the loss of strength of diamond simultaneously, influence the service life of saw blade.Cold pressing-vacuum-sintering tool
There are the characteristics of production is of large quantities, manufacturing cost is low, but sintering process time length, high energy consumption, consistency and the intensity hardly possible of sintered body
To meet the requirement of complex working condition.In recent years, as microwave sintering gradually develops in materials science field, it is increasingly becoming a kind of new
The powder metallurgy Fast Sintering technology of type.Microwave sintering has obvious difference with normal sintering, and its main feature is as follows：（1）
Quick heating, significantly energy-conservation.（2）Uniformly heating, tissue are homogeneous.Due to equably overall absorption microwave energy and being added inside and outside material
Heat, avoid in conventional heating cracking or thermal stress caused by the temperature difference of material inside and outside.（3）Ultra-fine grain, cause
Densification.The Fast Sintering of microwave can make material internal form uniform aplitic texture and higher compactness, so as to which material is grand
Performance is seen to be optimized.(4) selectivity heating.Under microwave field, because different material internal components and microwave field have difference
Coupling, therefore microwave sintering can realize selective sintering, so as to obtain having new microstructures, function admirable material
Material.So microwave sintering can reduce sintering temperature, shorten sintering time, improve consistency, so as to reduce the strong of diamond
Degree loss, the combination property for reducing cost, improving saw blade.
《Superfine tungsten carbide powder characteristic is on the microstructural influence of diamond saw blade》Disclose with Co, Cu, Sn,
Ni, WC powder are main bonding agent, sinter to obtain diamond saw blade using conventional vacuum at 880 DEG C, 890 DEG C, 900 DEG C, 910 DEG C
Cutter head.Using conventional vacuum-sintering in the technical scheme, wherein addition WC powder mainly plays Grain refinement.And the application
Mainly sintered using microwave vacuum, be significantly reduced in sintering temperature, and SiC powder is added in formula, changed well
The absorbing property of material simultaneously improves the wearability of cutter head.
The content of the invention
For the above-mentioned problems of the prior art and deficiency, the present invention provides a kind of preparation side of diamond saw blade
Method.This method is mainly to obtain the diamond saw of low-cost and high-performance simultaneously using the formula of bottom cobalt with Microwave Sintering Techniques
Piece cutter head, and this method technique is simple, cost is low, energy-conserving and environment-protective, and the present invention is achieved through the following technical solutions.
A kind of preparation method of diamond saw blade, it is comprised the following steps that：
Step 1, first by the powder of following masses percentage：25%~30%Fe powder, 10%~20%Co powder, 35%~45%Cu
Powder, 3%~8%Ni powder, 5%~9%Sn powder, 1%~6%SiC powder are well mixed to obtain mixed-powder；Add diamond mixing；On
Metal dust sum is stated as 100%；Diamond dosage Gd=ρdV, ρd=0.88K, (ρdContain diamond matter in-cutter head unit volume
Amount, the concentration of K- diamonds, general diamond concentration is 20%, V- cutter heads volume).
Step 2, the mixed-powder for obtaining step 1 are added in punching block, compressing under 150MPa pressure to be cold-pressed
Cutter head；
Step 3, the cold pressing cutter head for obtaining step 2 carry out microwave vacuum sintering, and sintering temperature is 750 DEG C~900 DEG C, is burnt
Knot atmosphere is argon gas, is incubated 3~10min, obtains diamond saw blade.
Fe powder in the step 1, Co powder, Cu powder, Ni powder, the granularity of Sn powder and SiC powder are 100~200 mesh.
Diamond particles are 30~45 mesh in the step 1.
The adjacent tool tips sample that the step 3 obtains is provided with carbon barrier.
Mixed-powder calculates required mixing as bonding agent according to solid density by cutter head volume in above-mentioned steps 2
Powder binder weight, i.e. M=ρ V, M- combining powder mixture weight, ρ-mixed-powder bonding agent solid density, V- cutter head volumes.
Such as when ρ is 8.38g/cm3, V 2.86cm3When M be 23.97g.
The beneficial effects of the invention are as follows：
（1）Microwave sintering is used on sintering processing of the present invention, compared to traditional vacuum-sintering mode, microwave sintering can be realized
Shorten sintering time, reduce sintering temperature, mitigate the strength damage of diamond, obtain the cutter head of higher compactness.
（2）The present invention advantageously reduces cost, and carbon by reducing the dosage of cobalt on formula and adding carborundum powder
SiClx has fabulous wave absorbtion, can shorten the microwave sintering time.
Brief description of the drawings
Fig. 1 is present invention process flow chart.
Embodiment
With reference to the accompanying drawings and detailed description, the invention will be further described.
Embodiment 1
As shown in figure 1, the preparation method of the diamond saw blade, it is comprised the following steps that：
Step 1, first by the powder of following masses percentage：28%Fe powder, 20%Co powder, 35%Cu powder, 3%Ni powder, 8%Sn
Powder and 6%SiC powder, which are well mixed, obtains mixed-powder, adds diamond mixing, diamond dosage Gd=ρdV,ρd=0.88K,
ρdContain diamond quality, the concentration of K- diamonds, V- cutter heads volume in-cutter head unit volume)；Wherein Fe powder, Co powder, Cu
Powder, Ni powder, the granularity of Sn powder and SiC powder are 100~200 mesh；Diamond particles are 30~45 mesh；
Step 2, the mixed-powder for obtaining step 1 are added in punching block, compressing under 150MPa pressure to be cold-pressed
Cutter head；
Step 3, the cold pressing cutter head for obtaining step 2 carry out microwave vacuum sintering（Stove evacuation is evacuated to 0.01Pa first,
Argon gas is then passed to normal pressure, then proceedes to be evacuated to 0.01Pa）, under argon gas sintering atmosphere（Argon gas is passed through to stove internal pressure
By force to 1~15KPa）, temperature be 750 DEG C under the conditions of insulation 4min obtain diamond saw blade, wherein the step 3 obtains
Each adjacent tool tips be provided with carbon barrier.
After tested, diamond saw blade consistency is 87.42%, hardness 71.82HRB.
Comparative example 1
Conventional vacuum sintering specific implementation step be：
Step 1, first by the powder of following masses percentage：28%Fe powder, 20%Co powder, 35%Cu powder, 3%Ni powder, 8%Sn
Powder and 6%SiC powder, which are well mixed, obtains mixed-powder, adds diamond mixing, diamond dosage Gd=ρdV,ρd=0.88K,
(ρdContain diamond quality, the concentration of K- diamonds, V- cutter heads volume in-cutter head unit volume)；Wherein Fe powder, Co powder, Cu
Powder, Ni powder, the granularity of Sn powder and SiC powder are 100~200 mesh；Diamond particles are 30~45 mesh；
Step 2, the mixed-powder for obtaining step 1 are added in punching block, compressing under 150MPa pressure to be cold-pressed
Cutter head；
Step 3, the cold pressing cutter head that step 2 obtains is put into mould carries out vacuum-sintering（Stove evacuation is evacuated to first
0.01Pa, argon gas is then passed to normal pressure, then proceedes to be evacuated to 0.01Pa）, under argon gas sintering atmosphere（Argon gas be passed through to
Pressure is to 1-15KPa in stove）, temperature be 750 DEG C under the conditions of insulation 15min obtain diamond saw blade.Comparative example 1
The diamond saw blade consistency 77.47% being prepared is hardness 62.24HRB.
Embodiment 2
As shown in figure 1, the preparation method of the diamond saw blade, it is comprised the following steps that：
Step 1, first by the powder of following masses percentage：30%Fe powder, 16%Co powder, 40%Cu powder, 7%Ni powder, 5%Sn
Powder and 2%SiC powder, which are well mixed, obtains mixed-powder；Add diamond mixing, diamond dosage Gd=ρdV, ρd=0.88K ,
( ρdContain diamond quality, the concentration of K- diamonds, V- cutter heads volume in-cutter head unit volume)；Wherein Fe powder, Co powder, Cu
Powder, Ni powder, the granularity of Sn powder and SiC powder are 100~200 mesh；Diamond particles are 30~45 mesh；
Step 2, the mixed-powder for obtaining step 1 are added in punching block, compressing under 150MPa pressure to be cold-pressed
Cutter head；
Step 3, the cold pressing cutter head for obtaining step 2 carry out microwave vacuum sintering（Stove evacuation is evacuated to 0.01Pa first,
Argon gas is then passed to normal pressure, then proceedes to be evacuated to 0.01Pa）, under argon gas sintering atmosphere（Argon gas is passed through to stove internal pressure
By force to 1-15KPa）, temperature be 800 DEG C under the conditions of insulation 3min obtain diamond saw blade, wherein the step 3 obtains
Each adjacent tool tips be provided with carbon barrier.
After tested, diamond saw blade consistency is 91.87%, hardness 82.42HRB.
Comparative example 2
Conventional vacuum sintering specific implementation step be：
Step 1, first by the powder of following masses percentage：30%Fe powder, 16%Co powder, 40%Cu powder, 7%Ni powder, 5%Sn
Powder and 2%SiC powder, which are well mixed, obtains mixed-powder；Add diamond mixing, diamond dosage Gd=ρdV,ρd=0.88K,
(ρdContain diamond quality, the concentration of K- diamonds, V- cutter heads volume in-cutter head unit volume)；Wherein Fe powder, Co powder, Cu
Powder, Ni powder, the granularity of Sn powder and SiC powder are 100~200 mesh；Diamond particles are 30~45 mesh；
Step 2, the mixed-powder for obtaining step 1 are added in punching block, compressing under 150MPa pressure to be cold-pressed
Cutter head；
Step 3, the cold pressing cutter head that step 2 obtains is put into mould carries out vacuum-sintering（Stove evacuation is evacuated to first
0.01Pa, argon gas is then passed to normal pressure, then proceedes to be evacuated to 0.01Pa）, under argon gas sintering atmosphere（Argon gas be passed through to
Pressure is to 1-15KPa in stove）, temperature be 800 DEG C under the conditions of insulation 15min obtain diamond saw blade.
The diamond saw blade consistency that comparative example 2 is prepared is 83.58%, hardness 72.50HRB.
Embodiment 3
As shown in figure 1, the preparation method of the diamond saw blade, it is comprised the following steps that：
Step 1, first by the powder of following masses percentage：30%Fe powder, 16%Co powder, 40%Cu powder, 7%Ni powder, 5%Sn
Powder and 2%SiC powder, which are well mixed, obtains mixed-powder；Add diamond mixing, diamond dosage Gd=ρdV,ρd=0.88K,
(ρdContain diamond quality, the concentration of K- diamonds, V- cutter heads volume in-cutter head unit volume)；Wherein Fe powder, Co powder, Cu
Powder, Ni powder, the granularity of Sn powder and SiC powder are 100~200 mesh；Diamond particles are 30~45 mesh；
Step 2, the mixed-powder for obtaining step 1 are added in punching block, mixed-powder 23.97g, under 150MPa pressure
It is compressing to obtain being cold-pressed cutter head；
Step 3, the cold pressing cutter head for obtaining step 2 carry out microwave vacuum sintering（Stove evacuation is evacuated to 0.01Pa first,
Argon gas is then passed to normal pressure, then proceedes to be evacuated to 0.01Pa）, under argon gas sintering atmosphere（Argon gas is passed through to stove internal pressure
By force to 1-15KPa）, temperature be 850 DEG C under the conditions of insulation 4min obtain diamond saw blade, wherein the step 3 obtains
Each adjacent tool tips be provided with carbon barrier.
After tested, diamond saw blade consistency is 97.37%, hardness 96.20HRB.
Comparative example 3
Conventional vacuum sintering specific implementation step be：
Step 1, first by the powder of following masses percentage：30%Fe powder, 16%Co powder, 40%Cu powder, 7%Ni powder, 5%Sn
Powder and 2%SiC powder, which are well mixed, obtains mixed-powder；Add diamond mixing, diamond dosage Gd=ρdV,ρd=0.88K,
(ρdContain diamond quality, the concentration of K- diamonds, V- cutter heads volume in-cutter head unit volume)；Wherein Fe powder, Co powder, Cu
Powder, Ni powder, the granularity of Sn powder and SiC powder are 100~200 mesh；Diamond particles are 30~45 mesh；
Step 2, the mixed-powder for obtaining step 1 are added in punching block, compressing under 150MPa pressure to be cold-pressed
Cutter head；
Step 3, the cold pressing cutter head that step 2 obtains is put into mould carries out vacuum-sintering（Stove evacuation is evacuated to first
0.01Pa, argon gas is then passed to normal pressure, then proceedes to be evacuated to 0.01Pa）, under argon gas sintering atmosphere（Argon gas be passed through to
Pressure is to 1-15KPa in stove）, temperature be 850 DEG C under the conditions of insulation 1min obtain diamond saw blade.
The diamond saw blade consistency that comparative example 3 is prepared is 90.86%, hardness 82.62HRB.
Embodiment 4
As shown in figure 1, the preparation method of the diamond saw blade, it is comprised the following steps that：
Step 1, first by the powder of following masses percentage：25%Fe powder, 10%Co powder, 45%Cu powder, 8%Ni powder, 9%Sn
Powder and 3%SiC powder, which are well mixed, obtains mixed-powder；Add diamond mixing, diamond dosage Gd=ρdV, ρd=0.88K,
(ρdContain diamond quality, the concentration of K- diamonds, V- cutter heads volume in-cutter head unit volume)；Wherein Fe powder, Co powder, Cu
Powder, Ni powder, the granularity of Sn powder and SiC powder are 100~200 mesh；Diamond particles are 30~45 mesh；
Step 2, the mixed-powder for obtaining step 1 are added in punching block, compressing under 150MPa pressure to be cold-pressed
Cutter head；
Step 3, the cold pressing cutter head for obtaining step 2 carry out microwave vacuum sintering（Stove evacuation is evacuated to 0.01Pa first,
Argon gas is then passed to normal pressure, then proceedes to be evacuated to 0.01Pa）, under argon gas sintering atmosphere（Argon gas is passed through to stove internal pressure
By force to 1-15KPa）, temperature be 900 DEG C under the conditions of insulation 10min obtain diamond saw blade, wherein the step 3 obtains
Each adjacent tool tips be provided with carbon barrier.
After tested, diamond saw blade consistency is 96.67%, hardness 94.50HRB.
Comparative example 4
Conventional vacuum sintering specific implementation step be：
Step 1, first by the powder of following masses percentage：25%Fe powder, 10%Co powder, 45%Cu powder, 8%Ni powder, 9%Sn
Powder and 3%SiC powder, which are well mixed, obtains mixed-powder；Add diamond mixing, diamond dosage Gd=ρdV, ρd=0.88K,
(ρdContain diamond quality, the concentration of K- diamonds, V- cutter heads volume in-cutter head unit volume)；Wherein Fe powder, Co powder, Cu
Powder, Ni powder, the granularity of Sn powder and SiC powder are 100~200 mesh；Diamond particles are 30~45 mesh；
Step 2, the mixed-powder for obtaining step 1 are added in punching block, compressing under 150MPa pressure to be cold-pressed
Cutter head；
Step 3, the cold pressing cutter head that step 2 obtains is put into mould carries out vacuum-sintering（Stove evacuation is evacuated to first
0.01Pa, argon gas is then passed to normal pressure, then proceedes to be evacuated to 0.01Pa）, under argon gas sintering atmosphere（Argon gas be passed through to
Pressure is to 1-15KPa in stove）, temperature be 900 DEG C under the conditions of insulation 15min obtain diamond saw blade.
The diamond saw blade consistency that comparative example 4 is prepared is 93.18%, hardness 86.42HRB.
It can be drawn by four groups of case study on implementation：Microwave vacuum sintering has obvious advantage compared to conventional vacuum sintering.
Microwave vacuum sinters optimised process：850 DEG C of sintering temperature, 4min is incubated, obtaining diamond saw blade consistency is
97.37%, hardness 96.20HRB.And conventional vacuum-sintering is incubated 15min at 900 DEG C, cutter head consistency is 93.18%,
Hardness is 86.42HRB.Therefore, drawn from the consistency and hardness analysis of sintered body：Microwave sintering can significantly reduce sintering temperature
Degree, shorten sintering time and fast densified, the heat waste of diamond can be reduced, improve the service life of cutter head.
Above in association with accompanying drawing to the present invention embodiment be explained in detail, but the present invention be not limited to it is above-mentioned
Embodiment, can also be before present inventive concept not be departed from those of ordinary skill in the art's possessed knowledge
Put that various changes can be made.
Claims (4)
1. a kind of preparation method of diamond saw blade, it is characterised in that comprise the following steps that：
Step 1, first by the powder of following masses percentage：25%~30%Fe powder, 10%~20%Co powder, 35%~45%Cu powder,
3%~8%Ni powder, 5%~9%Sn powder, 1%~6%SiC powder are well mixed to obtain mixed-powder；Add diamond mixing；It is above-mentioned mixed
It is 100% to close powder sum；Diamond dosage Gd=ρdV, ρd=0.88K, ρdContain diamond quality, K- in-cutter head unit volume
The concentration of diamond, V- cutter head volumes；
Step 2, the mixed-powder that step 1 is obtained and diamond add punching block, under 150MPa pressure it is compressing obtain it is cold
Push type broach head；
Step 3, the cutter head for obtaining step 2 carry out microwave vacuum sintering, and sintering temperature is 750 DEG C~900 DEG C, and sintering atmosphere is
Argon gas, 3~10min is incubated, obtains diamond saw blade.
2. the preparation method of diamond saw blade according to claim 1, it is characterised in that：Fe powder in the step 1,
Co powder, Cu powder, Ni powder, the granularity of Sn powder and SiC powder are 100~200 mesh.
3. the preparation method of diamond saw blade according to claim 1, it is characterised in that：Buddha's warrior attendant in the step 1
Stone particle is 30~45 mesh.
4. the preparation method of diamond saw blade according to claim 1, it is characterised in that：It is adjacent in the step 3
Carbon barrier is provided between cutter head sample.
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| CN107962182B (en) * | 2017-10-31 | 2020-01-31 | 昆明理工大学 | method for preparing diamond circular saw blade cutter head by microwave hot pressing sintering technology |
| CN108161772B (en) * | 2017-12-19 | 2020-09-11 | 广东纳德新材料有限公司 | Diamond cutter head prepared from metal ceramic binder by microwave sintering and preparation method of diamond cutter head |
| CN108863363A (en) * | 2018-06-09 | 2018-11-23 | 南京理工大学 | A kind of Technique of Vitrified Diamond Wheels material and its microwave sintering process |
| CN109628815B (en) * | 2018-12-29 | 2020-12-15 | 郑州机械研究所有限公司 | Diamond saw blade |
| CN110408828B (en) * | 2019-07-19 | 2020-09-29 | 马鞍山市华东超硬材料有限责任公司 | Artificial diamond drill bit material, drill bit and production process thereof |
| CN113523266A (en) * | 2020-04-14 | 2021-10-22 | 江苏友和工具有限公司 | Ceramic wafer and processing technology thereof |
| CN113188948B (en) * | 2021-04-21 | 2024-04-05 | 博深股份有限公司 | Method for measuring uniaxial compressibility of metal powder in warm-pressing state |
| CN113414878B (en) * | 2021-06-16 | 2023-12-26 | 江苏友和工具有限公司 | Diamond tool suitable for high-strength rock exploitation |
| CN114393212A (en) * | 2021-12-21 | 2022-04-26 | 浙江省永康市金都工贸有限公司 | Diamond saw blade for cutting rock plate and manufacturing method thereof |
| CN114472889B (en) * | 2021-12-28 | 2024-02-20 | 苏州赛尔科技有限公司 | Ultra-thin superfinishing cutter with metal binding agent and preparation method |
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| JP2010274383A (en) * | 2009-05-29 | 2010-12-09 | Nisshin Seisakusho:Kk | Method and device for manufacturing metal bonded grinding wheel |
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