CN107838417A - A kind of iron Al-based agent diamond tool and preparation method thereof - Google Patents
A kind of iron Al-based agent diamond tool and preparation method thereof Download PDFInfo
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- CN107838417A CN107838417A CN201711002383.6A CN201711002383A CN107838417A CN 107838417 A CN107838417 A CN 107838417A CN 201711002383 A CN201711002383 A CN 201711002383A CN 107838417 A CN107838417 A CN 107838417A
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- 239000010432 diamond Substances 0.000 title claims abstract description 79
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 79
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 28
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 90
- 238000005245 sintering Methods 0.000 claims abstract description 38
- 239000011812 mixed powder Substances 0.000 claims abstract description 20
- 239000007767 bonding agent Substances 0.000 claims abstract description 19
- 238000000227 grinding Methods 0.000 claims abstract description 17
- 239000011863 silicon-based powder Substances 0.000 claims abstract description 17
- 229910000048 titanium hydride Inorganic materials 0.000 claims abstract description 17
- 239000003082 abrasive agent Substances 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims description 48
- 239000000463 material Substances 0.000 claims description 22
- 229910017755 Cu-Sn Inorganic materials 0.000 claims description 20
- 229910017927 Cu—Sn Inorganic materials 0.000 claims description 20
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 20
- 239000000758 substrate Substances 0.000 claims description 19
- 238000000498 ball milling Methods 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 3
- 229910015372 FeAl Inorganic materials 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000000280 densification Methods 0.000 abstract description 2
- 238000011065 in-situ storage Methods 0.000 abstract description 2
- 229910000765 intermetallic Inorganic materials 0.000 abstract description 2
- 150000002505 iron Chemical class 0.000 abstract 2
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 238000007731 hot pressing Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 102000008133 Iron-Binding Proteins Human genes 0.000 description 1
- 108010035210 Iron-Binding Proteins Proteins 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000000039 congener Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229910000743 fusible alloy Inorganic materials 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
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- B22F1/0003—
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
-
- 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
Abstract
The invention discloses a kind of iron Al-based agent diamond tool and preparation method thereof.This iron Al-based agent diamond tool includes bonding agent and abrasive material；Bonding agent is by 70~90 mass parts Fe Al mixed powders, 10~30 mass parts Cu Sn prealloy powder, 0.5~3 mass parts Si powder, 0.5~1 mass parts B powder and 0.5~3 mass parts TiH2Powder forms；Abrasive material is diamond, and diamond abrasive accounts for the 5~25% of grinding layer volume.The preparation method of this iron Al-based agent diamond tool is also disclosed that simultaneously.The present invention proposes a kind of bonding agent system of the FeAl intermetallic compounds based on fabricated in situ, and the diamond tool being prepared has high temperature resistant, corrosion-resistant, low-gravity advantage, while also improves the sintering densification performance of diamond tool.
Description
Technical field
The present invention relates to a kind of iron Al-based agent diamond tool and preparation method thereof.
Background technology
Metal binding agent diamond tool is widely used in stone material, ceramics, concrete, bituminous paving processing and geological drilling
Deng field, multicomponent body that bonding agent is mainly combined with the Metal Substrate such as Co, Cu, Fe low-melting alloy (Sn, Zn, Pb etc.)
System.Co and Cu price height makes diamond tool production cost high, is not suitable for using in the industry.And Fe is cheap, resource is rich
Richness, the diamond tool synthesized by appropriate design of material, have abrasion loss small, grinding ratio is high, and intensity is high, not fragile
Damage, good shaping, dressing, the advantages that to diamond and good skeleton wetability, slightly broad spectrum activity is suitably processed various hard crisp
Material.Iron belongs to congeners with cobalt, and Nature comparison is similar, more for the research of cobalt with iron at present.
In current used metallic bond, Co based anchoring agents are combined best, performance highest, but Co valencys with diamond
Lattice are high.Fe based anchoring agents are compared with Co based anchoring agents, and its performance and Co base class are seemingly, cheap, although hardness is relatively low
Wearability is good.But iron-binding agent is easy to aoxidize, and at high temperature, iron powder can produce more serious chemistry to diamond and invade
Erosion, the mechanical property of bonding agent in itself and its effective holding to diamond are influenceed due to these two aspects, causes to process
During bonding agent wear no resistance, diamond easily comes off, and shortens the life-span of diamond tool.
The content of the invention
It is an object of the invention to provide a kind of iron Al-based agent diamond tool and preparation method thereof.
The technical solution used in the present invention is：
A kind of iron Al-based agent diamond tool, including bonding agent and abrasive material；Bonding agent is by 70~90 mass parts Fe-Al
Mixed powder, 10~30 mass parts Cu-Sn prealloy powder, 0.5~3 mass parts Si powder, 0.5~1 mass parts B powder and 0.5~3 mass
Part TiH2Powder forms；Abrasive material is diamond, and diamond abrasive accounts for the 5~25% of grinding layer volume.
Fe-Al mixed powders are Fe powder and Al powder in mass ratio 2:The mixed powder of 1 composition, the wherein particle diameter of Fe powder is 5~30 μ
The particle diameter of m, Al powder is 5~30 μm.
Sn mass content is that the particle diameter of 15~20%, Cu-Sn prealloy powder is 5~50 μm in Cu-Sn prealloy powder.
The particle diameter of Si powder is 1~15 μm, and the particle diameter of B powder is 1~15 μm, TiH2The particle diameter of powder is 1~15 μm.
The particle diameter of diamond abrasive is 20~120 mesh.
A kind of preparation method of iron Al-based agent diamond tool, comprises the following steps：
1) Fe powder and Al powder are mixed in ball mill, obtains Fe-Al mixed powders；
2) by Fe-Al mixed powders, Cu-Sn prealloy powder, Si powder, B powder, TiH2Powder and diamond abrasive mix in ball mill
Close, obtain diamond tool and prepare material；
3) diamond tool is prepared into material cold moudling, obtains diamond tool base substrate；
4) diamond tool base substrate is sintered, obtains above-mentioned iron Al-based agent diamond tool.
In step 1) or step 2), the rotating speed of ball mill is 150~250r/min, and Ball-milling Time is 3~5h, and ratio of grinding media to material is
(5~10)：1.
In step 3), the green density of diamond tool base substrate is 50~70% solid densities, cold pressing pressure is 200~
300MPa。
In step 4), the mode of sintering is wherein one in discharge plasma sintering, hot pressed sintering, gas pressure sintering
Kind.
In step 4), sintering temperature is 600~1100 DEG C, and sintering time be 3~30min, sintering pressure for 30~
100MPa。
The beneficial effects of the invention are as follows：
The present invention proposes a kind of bonding agent system of the FeAl intermetallic compounds based on fabricated in situ, is prepared
Diamond tool has high temperature resistant, corrosion-resistant, low-gravity advantage, while also improves the sintering densification of diamond tool
Energy.
Specifically：
The present invention with the addition of several different additives, including Cu-Sn pre-alloyed powders in system, Si powder, B powder and
TiH2Powder.Cu-Sn pre-alloyed powders can improve FeAl consistency；The introducing of Si elements can reduce sintering temperature, change
It is apt to its sintering character, and can produces the effect of solution strengthening, increases the intensity of diamond tool；B powder can improve fragility, improve
The hardness of instrument；TiH2In Ti elements can then improve bond strength, improve hold of the bonding agent to diamond.
Embodiment
A kind of iron Al-based agent diamond tool, including bonding agent and abrasive material；Bonding agent is by 70~90 mass parts Fe-Al
Mixed powder, 10~30 mass parts Cu-Sn prealloy powder, 0.5~3 mass parts Si powder, 0.5~1 mass parts B powder and 0.5~3 mass
Part TiH2Powder forms；Abrasive material is diamond, and diamond abrasive accounts for the 5~25% of grinding layer volume.
Preferably, a kind of iron Al-based agent diamond tool, including bonding agent and abrasive material；Bonding agent is by 72~88 mass
Part Fe-Al mixed powders, 10~28 mass parts Cu-Sn prealloy powder, 0.5~1 mass parts Si powder, 0.5~1 mass parts B powder and 0.5
~1 mass parts TiH2Powder forms；Abrasive material is diamond, and diamond abrasive accounts for the 10~25% of grinding layer volume.
Further, diamond abrasive accounts for the 18.75~25% of grinding layer volume.
Preferably, Fe-Al mixed powders are Fe powder and Al powder in mass ratio 2:The particle diameter of the mixed powder, wherein Fe powder of 1 composition
For 5~30 μm, the particle diameter of Al powder is 5~30 μm；It is further preferred that the particle diameter of Fe powder is 10~25 μm, the particle diameter of Al powder is
10~25 μm.
Preferably, in Cu-Sn prealloy powder Sn mass content be 15~20%, Cu-Sn prealloy powder particle diameter be 5~
50μm；It is further preferred that the particle diameter of Cu-Sn prealloy powder is 10~40 μm.
Preferably, the particle diameter of Si powder is 1~15 μm, and the particle diameter of B powder is 1~15 μm, TiH2The particle diameter of powder is 1~15 μm；
It is further preferred that the particle diameter of Si powder is 5~10 μm, the particle diameter of B powder is 5~10 μm, TiH2The particle diameter of powder is 5~10 μm.
Preferably, the particle diameter of diamond abrasive is 20~120 mesh；It is further preferred that the particle diameter of diamond abrasive is 30
~60 mesh.
A kind of preparation method of iron Al-based agent diamond tool, comprises the following steps：
1) Fe powder and Al powder are mixed in ball mill, obtains Fe-Al mixed powders；
2) by Fe-Al mixed powders, Cu-Sn prealloy powder, Si powder, B powder, TiH2Powder and diamond abrasive mix in ball mill
Close, obtain diamond tool and prepare material；
3) diamond tool is prepared into material cold moudling, obtains diamond tool base substrate；
4) diamond tool base substrate is sintered, obtains above-mentioned iron Al-based agent diamond tool.
Preferably, in step 1) or step 2), the rotating speed of ball mill is 150~250r/min, and Ball-milling Time is 3~5h,
Ratio of grinding media to material is (5~10): 1.
Further, in step 1) or step 2), the cumulative volume of abrading-ball and material is no more than the 2/3 of ball milling tank volume.
Preferably, in step 3), the green density of diamond tool base substrate is 50~70% solid densities, and cold pressing pressure is
200~300MPa.
Further, the cold moudling described in step 3) is carried out in hard alloy cold stamping die.
Preferably, in step 4), the mode of sintering is discharge plasma sintering, in hot pressed sintering, gas pressure sintering
One of which.
Preferably, in step 4), sintering temperature is 600~1100 DEG C, and sintering time is 3~30min, sintering pressure 30
~100MPa；It is further preferred that in step 4), sintering temperature is 800~900 DEG C, and sintering time is 8~12min, sintering pressure
Power is 30~60MPa.
Fe powder, Al powder, Cu-Sn prealloy powder, Si powder, B powder and TiH of the present invention2The purity of powder is all higher than
99.9%.
Present disclosure is described in further detail below by way of specific embodiment.
Embodiment 1：
Fe powder and Al powder in mass ratio 2:1 proportioning, through ball mill batch mixing, the rotating speed of ball mill is 200r/min, during ball milling
Between be 3h, ratio of grinding media to material 5: 1, ball milling is prepared into Fe-Al mixed powders, and its mass fraction is 88 parts altogether, and the particle diameter of wherein Fe powder is
25 μm, the particle diameter of Al powder is 15 μm；The mass fraction of Cu-Sn pre-alloyed powders is 10 parts, and its particle diameter is 40 μm；The quality of Si powder
Number is 1 part, and its particle diameter is 10 μm；The mass fraction of B powder is 0.5 part, and its particle diameter is 5 μm；TiH2The mass fraction of powder is
0.5 part, its particle diameter is 10 μm.Add diamond abrasive, make its account for grinding layer volume 25%, particle diameter is 50/60 mesh.Will be upper
State the bonding agent of ratio and abrasive material is put into ball mill and is sufficiently mixed, drum's speed of rotation 150r/min, Ball-milling Time 3h, ball material
Than for 5: 1.Mixed instrument is prepared into material cold moudling in hard alloy cold stamping die, pressure 300MPa, obtained
The green density of instrument base substrate be 50% solid density；Hot pressed sintering is carried out to instrument base substrate, sintering temperature is 800 DEG C, is burnt
The knot time is 10min, sintering pressure 30MPa, and the heat energy and pressure that instrument base substrate provides by hot pressing furnace react, finally
Obtain diamond tool.
Embodiment 2：
Fe powder and Al powder in mass ratio 2:1 proportioning, through ball mill batch mixing, the rotating speed of ball mill is 200r/min, during ball milling
Between be 3h, ratio of grinding media to material 5: 1, ball milling is prepared into Fe-Al mixed powders, and its mass fraction is 80 parts altogether, and the particle diameter of wherein Fe powder is
10 μm, the particle diameter of Al powder is 25 μm；The mass fraction of Cu-Sn pre-alloyed powders is 18 parts, and its particle diameter is 30 μm；The quality of Si powder
Number is 0.5 part, and its particle diameter is 5 μm；The mass fraction of B powder is 0.5 part, and its particle diameter is 10 μm；TiH2The mass fraction of powder
For 1 part, its particle diameter is 5 μm.Add diamond abrasive, make its account for grinding layer volume 18.75%, particle diameter is 40/50 mesh.Will
The bonding agent and abrasive material of aforementioned proportion, are put into ball mill and are sufficiently mixed, drum's speed of rotation 200r/min, Ball-milling Time 5h,
Ratio of grinding media to material is 10: 1.Mixed instrument is prepared into material cold moudling in hard alloy cold stamping die, pressure 250MPa,
The green density of obtained instrument base substrate is 70% solid density.Gas pressure sintering is carried out to instrument base substrate, sintering temperature is
850 DEG C, sintering time 12min, sintering pressure 50MPa, the heat energy and pressure that instrument base substrate provides by hot pressing furnace occur
Reaction, finally obtains diamond tool.
Embodiment 3：
Fe powder and Al powder in mass ratio 2:1 proportioning, through ball mill batch mixing, the rotating speed of ball mill is 200r/min, during ball milling
Between be 3h, ratio of grinding media to material 5: 1, ball milling is prepared into Fe-Al mixed powders, and its mass fraction is 72 parts altogether, and the particle diameter of wherein Fe powder is
20 μm, the particle diameter of Al powder is 10 μm；The mass fraction of Cu-Sn pre-alloyed powders is 28 parts, and its particle diameter is 10 μm；The quality of Si powder
Number is 1 part, and its particle diameter is 10 μm；The mass fraction of B powder is 1 part, and its particle diameter is 5 μm；TiH2The mass fraction of powder is 0.5
Part, its particle diameter is 10 μm.Add diamond abrasive, make its account for grinding layer volume 25%, particle diameter is 30/40 mesh.Will be above-mentioned
The bonding agent and abrasive material of ratio, are put into ball mill and are sufficiently mixed, drum's speed of rotation 250r/min, Ball-milling Time 4h, ball material
Than for 9: 1.Mixed instrument is prepared into material cold moudling in hard alloy cold stamping die, pressure 200MPa, obtained
The green density of instrument base substrate be 60% solid density；Hot pressed sintering is carried out to instrument base substrate, sintering temperature is 900 DEG C, is burnt
The knot time is 8min, sintering pressure 60MPa, and the heat energy and pressure that instrument base substrate provides by hot pressing furnace react, finally
Obtain diamond tool.
Claims (10)
- A kind of 1. iron Al-based agent diamond tool, it is characterised in that：Including bonding agent and abrasive material；Bonding agent is by 70~90 matter Measure part Fe-Al mixed powders, 10~30 mass parts Cu-Sn prealloy powder, 0.5~3 mass parts Si powder, 0.5~1 mass parts B powder and 0.5~3 mass parts TiH2Powder forms；Abrasive material is diamond, and diamond abrasive accounts for the 5~25% of grinding layer volume.
- A kind of 2. iron Al-based agent diamond tool according to claim 1, it is characterised in that：Fe-Al mixed powders are Fe powder and Al powder in mass ratio 2:The mixed powder of 1 composition, the wherein particle diameter of Fe powder are 5~30 μm, and the particle diameter of Al powder is 5~30 μ m。
- A kind of 3. iron Al-based agent diamond tool according to claim 1, it is characterised in that：Cu-Sn prealloy powder Middle Sn mass content is that the particle diameter of 15~20%, Cu-Sn prealloy powder is 5~50 μm.
- A kind of 4. iron Al-based agent diamond tool according to claim 1, it is characterised in that：The particle diameter of Si powder is 1 ~15 μm, the particle diameter of B powder is 1~15 μm, TiH2The particle diameter of powder is 1~15 μm.
- A kind of 5. iron Al-based agent diamond tool according to claim 1, it is characterised in that：The grain of diamond abrasive Footpath is 20~120 mesh.
- A kind of 6. preparation method of iron Al-based agent diamond tool, it is characterised in that：Comprise the following steps：1) Fe powder and Al powder are mixed in ball mill, obtains Fe-Al mixed powders；2) by Fe-Al mixed powders, Cu-Sn prealloy powder, Si powder, B powder, TiH2Powder and diamond abrasive mix in ball mill, obtain Diamond tool prepares material；3) diamond tool is prepared into material cold moudling, obtains diamond tool base substrate；4) diamond tool base substrate is sintered, obtains the iron Al-based agent diamond described in any one of Claims 1 to 5 Instrument.
- A kind of 7. preparation method of iron Al-based agent diamond tool according to claim 6, it is characterised in that：Step 1) or in step 2), the rotating speed of ball mill is 150~250r/min, and Ball-milling Time is 3~5h, and ratio of grinding media to material is (5~10)：1.
- A kind of 8. preparation method of iron Al-based agent diamond tool according to claim 6, it is characterised in that：Step 3) in, the green density of diamond tool base substrate is 50~70% solid densities, and cold pressing pressure is 200~300MPa.
- A kind of 9. preparation method of iron Al-based agent diamond tool according to claim 6, it is characterised in that：Step 4) in, the mode of sintering is the one of which in discharge plasma sintering, hot pressed sintering, gas pressure sintering.
- A kind of 10. preparation method of iron Al-based agent diamond tool according to claim 9, it is characterised in that：Step It is rapid 4) in, sintering temperature be 600~1100 DEG C, sintering time is 3~30min, and sintering pressure is 30~100MPa.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110116376A (en) * | 2019-06-21 | 2019-08-13 | 广东工业大学 | A kind of metallic bond grinding tool and preparation method thereof |
| CN110218924A (en) * | 2019-07-12 | 2019-09-10 | 河南工业大学 | A kind of preparation method of high-performance diamond sintered article |
| CN110744051A (en) * | 2019-11-28 | 2020-02-04 | 中国有色桂林矿产地质研究院有限公司 | Preparation method of polycrystalline diamond compact |
| CN114260446A (en) * | 2021-12-30 | 2022-04-01 | 郑州机械研究所有限公司 | Matrix powder for diamond grinding tool, two-component matrix powder for diamond grinding tool and grinding wheel for ceramic dry grinding |
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