CN108085554A - Vanadium carbide titanium and preparation method thereof - Google Patents
Vanadium carbide titanium and preparation method thereof Download PDFInfo
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- CN108085554A CN108085554A CN201711395888.3A CN201711395888A CN108085554A CN 108085554 A CN108085554 A CN 108085554A CN 201711395888 A CN201711395888 A CN 201711395888A CN 108085554 A CN108085554 A CN 108085554A
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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
- 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
- C22C1/058—Mixtures of metal powder with non-metallic powder by reaction sintering (i.e. gasless reaction starting from a mixture of solid metal compounds)
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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
- C22C29/005—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides comprising a particular metallic binder
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Abstract
The invention discloses a kind of vanadium carbide titaniums and preparation method thereof, which includes：(1) vanadic anhydride powder, titanium valve with PET powder are uniformly mixed, are then granulated in an extruder, obtain the pellet containing carbon source, titanium source and vanadium source；(2) pellet containing carbon source, titanium source and vanadium source is crushed, obtains the powder containing carbon source, titanium source and vanadium source；(3) by after the powder drying containing carbon source, titanium source and vanadium source, calcined under vacuum, the vanadium carbide titanium is made.The preparation method of the vanadium carbide titanium of the present invention, preparation section is simple, and reaction temperature is low, and the vanadium carbide titanium crystallinity of preparation is good.
Description
Technical field
The invention belongs to cermet field, more particularly, to a kind of vanadium carbide titanium and preparation method thereof.
Background technology
Hard alloy be by refractory metal hard compounds and binding metal by powder metallurgical technique made of it is a kind of
Alloy material.Hard alloy has a series of excellent performances such as hardness is high, wear-resisting, intensity and toughness are preferable, heat-resisting, corrosion-resistant,
Particularly its high rigidity and wearability.Hard alloy is widely used as cutter material, such as lathe tool, milling cutter, planing tool, drill bit, boring cutter
Deng for cutting cast iron, non-ferrous metal, plastics, chemical fibre, graphite, glass, stone material and common iron, can also be used to cut resistance to
The difficult to machine materials such as hot steel, stainless steel, potassium steel, tool steel.
Vanadium carbide titanium is a kind of hard alloy newly developed in recent years, is the continuous solid solution that VC and TiC is formed.Carbonization
Vanadium titanium gets more and more people's extensive concerning in recent years since its density is low, light, and still, the method for preparing vanadium carbide titanium at present is general
Store-through high energy consumption, complex procedures and product crystallinity are poor the problems such as.
Therefore, it is necessary to provide a kind of preparation method of vanadium carbide titanium, reduce energy consumption, simplify process, and cause
The vanadium carbide titanium of preparation has good crystallinity.
The content of the invention
The defects of the purpose of the present invention is overcoming the prior art, provide that a kind of low energy consumption, process simple vanadium carbide titanium
Preparation method, and cause the vanadium carbide titanium prepared that there is good crystallinity.
To achieve these goals, the first aspect of the present invention provides a kind of preparation method of vanadium carbide titanium, the preparation side
Method includes：
(1) vanadic anhydride powder, titanium valve with PET powder are uniformly mixed, are then granulated, are contained in an extruder
The pellet of carbon source, titanium source and vanadium source；
(2) pellet containing carbon source, titanium source and vanadium source is crushed, obtained containing carbon source, titanium source and vanadium source
Powder；
(3) by after the powder drying containing carbon source, titanium source and vanadium source, calcined under vacuum, institute is made
State vanadium carbide titanium.
Preferably, step (1) includes：Each section of temperature that the extruder is granulated is 250-280 DEG C.
Preferably, the average grain diameter of the powder containing carbon source, titanium source and vanadium source is 80-100 μm.
Preferably, step (4) includes：After the powder drying containing carbon source, titanium source and vanadium source, under vacuum
It is once calcined, is cooled down；Then secondary clacining is carried out, is cooled down, the vanadium carbide titanium is made.
Preferably, it is described once calcining be by the powder containing carbon source, titanium source and vanadium source under vacuum in
At 830-980 DEG C, 3-5h is kept the temperature.
Preferably, the secondary clacining is under vacuum in 1200-1380 DEG C by the powder after the once calcining
Under, keep the temperature 2-4h.
Preferably, the PET powder controls V with C gauge2O5Molar ratio with Ti is 1-2:1；Mixed carbon comtent is to generate reaction
TiC and VC is 0.7-0.9 times of theoretical value.
The second aspect of the present invention provides vanadium carbide titanium prepared by a kind of above-mentioned preparation method.
Technical scheme has the following advantages that：
(1) present invention provides vanadium source by vanadic anhydride, titanium valve provides titanium source and PET powder provides carbon source and prepares vanadium carbide
Titanium, preparation section is simple, and reaction temperature is low, and then reduces energy consumption；
(2) then the present invention is made pellet, then passes through powder by vanadic anhydride powder, titanium valve and PET powder are uniformly mixed
It is broken that powder is made in pellet so that each reactant is sufficiently mixed, and the crystallinity of the vanadium carbide titanium of preparation is good.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Specific embodiment
The preferred embodiment of the present invention is described in more detail below.Although the following describe being preferably implemented for the present invention
Mode, however, it is to be appreciated that may be realized in various forms the present invention without should be limited by embodiments set forth herein.Phase
Instead, these embodiments are provided so that the present invention is more thorough and complete, and can be by the scope of the present invention intactly
It is communicated to those skilled in the art.
The first aspect of the present invention provides a kind of preparation method of vanadium carbide titanium, which includes：
(1) vanadic anhydride powder, titanium valve with PET powder are uniformly mixed, are then granulated, are contained in an extruder
The pellet of carbon source, titanium source and vanadium source；
(2) pellet containing carbon source, titanium source and vanadium source is crushed, obtained containing carbon source, titanium source and vanadium source
Powder；
(3) by after the powder drying containing carbon source, titanium source and vanadium source, calcined under vacuum, institute is made
State vanadium carbide titanium.
Preferably, in step (2), the pellet containing carbon source, titanium source and vanadium source is carried out in flour mill
It crushes；The drying temperature of powder containing carbon source, titanium source and vanadium source described in step (3) is 40-60 DEG C.
Preferably, step (1) includes：Each section of temperature that the extruder is granulated is 250-280 DEG C.
Preferably, the average grain diameter of the powder containing carbon source, titanium source and vanadium source is 80-100 μm.
By the way that the pellet containing carbon source, titanium source and vanadium source is made powder, to improve also contacts area, so that forging
It burns more abundant.
Preferably, step (4) includes：After the powder drying containing carbon source, titanium source and vanadium source, under vacuum
It is once calcined, is cooled down；Then secondary clacining is carried out, is cooled down, the vanadium carbide titanium is made.
Preferably, it is described once calcining be by the powder containing carbon source, titanium source and vanadium source under vacuum in
At 830-980 DEG C, 3-5h is kept the temperature.
Preferably, the secondary clacining is under vacuum in 1200-1380 DEG C by the powder after the once calcining
Under, keep the temperature 2-4h.
The reaction temperature of the present invention is low, and maximum temperature is 1200-1380 DEG C, reduces the energy consumption of reaction.
Preferably, the PET powder controls V with C gauge2O5Molar ratio with Ti is 1-2:1；Mixed carbon comtent is to generate reaction
TiC and VC is 0.7-0.9 times of theoretical value.
The present invention provides carbon source by PET powder, and mixed carbon comtent is controllable.
Preferably, preparing each raw material of the vanadium carbide titanium of the present invention can be commercially available.
The second aspect of the present invention provides vanadium carbide titanium prepared by a kind of above-mentioned preparation method.
The preparation method of the vanadium carbide titanium of the present invention, preparation section is simple, and reaction temperature is low, the vanadium carbide titanium crystallization of preparation
Degree is good.
It further illustrates the present invention by the following examples.
Embodiment 1
The present embodiment provides a kind of vanadium carbide titanium, specific preparation method includes：(1) by vanadic anhydride powder, titanium valve and PET
Powder is uniformly mixed, and is then granulated in an extruder, obtains the pellet containing carbon source, titanium source and vanadium source；(2) contain by described in
The pellet of carbon source, titanium source and vanadium source crushes in flour mill, obtains the powder containing carbon source, titanium source and vanadium source；(3) by institute
The powder containing carbon source, titanium source and vanadium source is stated after 50 DEG C dry, is calcined under vacuum, the vanadium carbide is made
Titanium；Wherein, step (1) includes：Each section of temperature that the extruder is granulated is 250-280 DEG C；It is described to contain carbon source, titanium source
Average grain diameter with the powder in vanadium source is 90 μm；Step (4) includes：The powder containing carbon source, titanium source and vanadium source is dried
Afterwards, once calcined, cooled down under vacuum；Then secondary clacining is carried out, is cooled down, the vanadium carbide is made；Described one
Secondary calcining is by the powder containing carbon source, titanium source and vanadium source under vacuum at 830 DEG C, keeps the temperature 5h；It is described secondary
Calcine for by it is described once calcine after powder under vacuum at 1200 DEG C, keep the temperature 4h；The PET powder is with C gauge, control
V processed2O5Molar ratio with Ti is 2:1；Mixed carbon comtent is 0.7 times that reaction generation TiC and VC is made to be theoretical value.
Embodiment 2
The present embodiment provides a kind of vanadium carbide titanium, specific preparation method includes：(1) by vanadic anhydride powder, titanium valve and PET
Powder is uniformly mixed, and is then granulated in an extruder, obtains the pellet containing carbon source, titanium source and vanadium source；(2) contain by described in
The pellet of carbon source, titanium source and vanadium source crushes in flour mill, obtains the powder containing carbon source, titanium source and vanadium source；(3) by institute
The powder containing carbon source, titanium source and vanadium source is stated after 50 DEG C dry, is calcined under vacuum, the vanadium carbide is made
Titanium；Wherein, step (1) includes：Each section of temperature that the extruder is granulated is 250-280 DEG C；It is described to contain carbon source, titanium source
Average grain diameter with the powder in vanadium source is 90 μm；Step (4) includes：The powder containing carbon source, titanium source and vanadium source is dried
Afterwards, once calcined, cooled down under vacuum；Then secondary clacining is carried out, is cooled down, the vanadium carbide is made；Described one
Secondary calcining is by the powder containing carbon source, titanium source and vanadium source under vacuum at 905 DEG C, keeps the temperature 4h；It is described secondary
Calcine for by it is described once calcine after powder under vacuum at 1300 DEG C, keep the temperature 3h；The PET powder is with C gauge, control
V processed2O5Molar ratio with Ti is 2:1；Mixed carbon comtent is 0.8 times that reaction generation TiC and VC is made to be theoretical value.
Embodiment 3
The present embodiment provides a kind of vanadium carbide titanium, specific preparation method includes：(1) by vanadic anhydride powder, titanium valve and PET
Powder is uniformly mixed, and is then granulated in an extruder, obtains the pellet containing carbon source, titanium source and vanadium source；(2) contain by described in
The pellet of carbon source, titanium source and vanadium source crushes in flour mill, obtains the powder containing carbon source, titanium source and vanadium source；(3) by institute
The powder containing carbon source, titanium source and vanadium source is stated after 50 DEG C dry, is calcined under vacuum, the vanadium carbide is made
Titanium；Wherein, step (1) includes：Each section of temperature that the extruder is granulated is 250-280 DEG C；It is described to contain carbon source, titanium source
Average grain diameter with the powder in vanadium source is 90 μm；Step (4) includes：The powder containing carbon source, titanium source and vanadium source is dried
Afterwards, once calcined, cooled down under vacuum；Then secondary clacining is carried out, is cooled down, the vanadium carbide is made；Described one
Secondary calcining is by the powder containing carbon source, titanium source and vanadium source under vacuum at 980 DEG C, keeps the temperature 3h；It is described secondary
Calcine for by it is described once calcine after powder under vacuum at 1380 DEG C, keep the temperature 2h；The PET powder is with C gauge, control
V processed2O5Molar ratio with Ti is 2:1；Mixed carbon comtent is 0.9 times that reaction generation TiC and VC is made to be theoretical value.
Various embodiments of the present invention are described above, above description is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.In the case of without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes will be apparent from for the those of ordinary skill in art field.
Claims (8)
1. a kind of preparation method of vanadium carbide titanium, which is characterized in that the preparation method includes：
(1) vanadic anhydride powder, titanium valve with PET powder are uniformly mixed, are then granulated in an extruder, acquisition contains carbon
The pellet in source, titanium source and vanadium source；
(2) pellet containing carbon source, titanium source and vanadium source is crushed, obtains the powder containing carbon source, titanium source and vanadium source；
(3) by after the powder drying containing carbon source, titanium source and vanadium source, calcined under vacuum, the carbon is made
Change vanadium titanium.
2. preparation method according to claim 1, wherein, step (1) includes：Each section of temperature that the extruder is granulated
It spends for 250-280 DEG C.
3. preparation method according to claim 1, wherein, the average grain of the powder containing carbon source, titanium source and vanadium source
Footpath is 80-100 μm.
4. preparation method according to claim 1, wherein, step (4) includes：Described it will contain carbon source, titanium source and vanadium source
Powder drying after, once calcined under vacuum, cool down；Then secondary clacining is carried out, is cooled down, the carbonization is made
Vanadium titanium.
5. preparation method according to claim 4, wherein, the once calcining is that described will contain carbon source, titanium source and vanadium
The powder in source at 830-980 DEG C, keeps the temperature 3-5h under vacuum.
6. preparation method according to claim 4, wherein, the secondary clacining is that the powder after the once calcining exists
Under vacuum condition at 1200-1380 DEG C, 2-4h is kept the temperature.
7. preparation method according to claim 1, wherein, the PET powder controls V with C gauge2O5Molar ratio with Ti is
1-2:1；Mixed carbon comtent is 0.7-0.9 times that reaction generation TiC and VC is made to be theoretical value.
8. vanadium carbide titanium prepared by the preparation method according to any one in claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711395888.3A CN108085554A (en) | 2017-12-21 | 2017-12-21 | Vanadium carbide titanium and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711395888.3A CN108085554A (en) | 2017-12-21 | 2017-12-21 | Vanadium carbide titanium and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103553619A (en) * | 2013-11-22 | 2014-02-05 | 攀枝花学院 | Titanium carbide and vanadium carbide composite material as well as production method and application thereof |
| CN103613387A (en) * | 2013-11-22 | 2014-03-05 | 攀枝花学院 | Vanadium titanium carbide and production method thereof |
| CN104129994A (en) * | 2014-07-29 | 2014-11-05 | 攀枝花学院 | Preparation method of vanadium titanium carbide |
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- 2017-12-21 CN CN201711395888.3A patent/CN108085554A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103553619A (en) * | 2013-11-22 | 2014-02-05 | 攀枝花学院 | Titanium carbide and vanadium carbide composite material as well as production method and application thereof |
| CN103613387A (en) * | 2013-11-22 | 2014-03-05 | 攀枝花学院 | Vanadium titanium carbide and production method thereof |
| CN104129994A (en) * | 2014-07-29 | 2014-11-05 | 攀枝花学院 | Preparation method of vanadium titanium carbide |
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