CN107245624A - A kind of five yuan of solid solution and preparation method thereof - Google Patents
A kind of five yuan of solid solution and preparation method thereof Download PDFInfo
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- CN107245624A CN107245624A CN201710437038.9A CN201710437038A CN107245624A CN 107245624 A CN107245624 A CN 107245624A CN 201710437038 A CN201710437038 A CN 201710437038A CN 107245624 A CN107245624 A CN 107245624A
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- yuan
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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
- C22C29/04—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 carbonitrides
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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)
Abstract
The present invention relates to a kind of five yuan of solid solution and preparation method thereof.The chemical formula of five yuan of solid solution is（W0.05‑0.15Nb0.15‑ 0.25Ti0.65‑0.75）（C0.45‑0.55N0.45‑0.55）.The preparation method of five yuan of above-mentioned solid solution, comprises the following steps：With TiO2, WC, NbC and hydrocarbon black powder be raw material, calculate the required quality of above-mentioned various raw materials by the composition of five yuan of solid solution, and weigh above-mentioned various raw materials, mixing acquisition raw mixture respectively；Then raw mixture is fitted into blender, drawn off after 22 ~ 26h of mixing, then well mixed compound is made to 0.5 ~ 1.0mm pellet, then agglomerate is pressed into press；Agglomerate is put into graphite boat again, in N2Atmosphere, reduce at 1700 ~ 1900 DEG C, reaction obtains five yuan of solid-solution powders.Five yuan of solid solution excellent performances of the present invention, are prepared with low cost；The solid solubility of five yuan of solid solution is high and product purity is high, for ceramic tool, can greatly improve the cutting ability of ceramic tool.
Description
Technical field
The invention belongs to hard alloy field, and in particular to a kind of five yuan of solid solution and preparation method thereof.
Background technology
In general, high performance metal-ceramic matrix material is by TiCN, solid solution and bonding phase（Co、Ni）Three part groups
Into.Recently as developing rapidly for machining, substantial amounts of difficult-to-machine material is emerged, people are finding new metal
Ceramic cutting tool material, to meet increasingly harsh processing request.In order to improve the physical and mechanical property of cermet, one is commonly incorporated into
A little WC, TaC and Ta contents are higher（W, Ti, Ta）C solid solution composite carbides, to improve the cutting ability of cermet, but
It is due to that Ta belongs to rare metal, it is expensive, the popularization and application of cutter material are have impact on, therefore develop without Ta cermets portion
It is emphasis direction of concern to divide replacement cermet containing TaC, and this research is processed to ceramic tool material in hardly possible
The application of Material Field serves positive directive significance.People are replaced with the NbC of relative low price under normal circumstances
The TaC of generation costliness, but NbC feed postition determines the quality of material property.If research find with（Ti, W, Ta, Nb）C-shaped
Formula is added can only at most replace TaC with 30%NbC, and NbC too high levels can make the hydraulic performance decline of material.The present invention is according to for many years
Practical experience, develops a kind of brand-new without Ta cermet solid solution, meets the high requirement of client's cost performance.
The content of the invention
It is an object of the present invention to provide a kind of five yuan of solid solution and preparation method thereof, improve the cost performance of material, pass through
The method of the present invention can not only be realized according to composition needs to design the composition of solid solution, while obtained solid solution has
Very high solid solubility and purity.
The technical scheme is that：A kind of five yuan of solid solution, the chemical formula of five yuan of solid solution is（W0.05- 0.15Nb0.15-0.25Ti0.65-0.75）（C0.45-0.65N0.30-0.55）.
Further, the chemical formula of five yuan of solid solution is（W0.08-0.12Nb0.18-0.22Ti0.68-0.72）（C0.48- 0.53N0.47-0.53）.
Preferably, the chemical formula of five yuan of solid solution is（W0.1Nb0.2Ti0.7）（C0.63N0.37）.
In the present invention, the preparation method of above-mentioned five yuan of solid solution comprises the following steps：
（1）With TiO2, WC, NbC and hydrocarbon black powder be raw material, calculate above-mentioned various raw materials by the composition of five yuan of solid solution
Required quality, and above-mentioned various raw materials are weighed respectively, mixing obtains raw mixture；
（2）By step（1）The raw mixture of middle acquisition is fitted into blender, is drawn off after 22 ~ 26h of mixing, then will mix equal
0.5 ~ 1.0mm pellet is made in even compound, then is pressed into agglomerate with press；
（3）By step（2）The agglomerate of middle acquisition is put into graphite boat, in N2Atmosphere, reduce at 1700 ~ 1900 DEG C, reaction is obtained
Obtain five yuan of solid-solution powders.
Preferably, step（1）Middle raw material TiO2, WC, NbC and hydrocarbon black powder quality proportioning be 54:12:12:23.
Preferably, step（2）In blender be V-type blender.
Preferably, step（2）Middle incorporation time is 24h.
Preferably, step（2）Middle reduction temperature is 1750 DEG C.
Preferably, step（3）The average grain diameter of five yuan of solid-solution powders of middle acquisition is 1.5 ~ 2.0 μm.
With TiO in the present invention2As Ti sources, using WC as W sources, using NbC as Nb sources, with N2For nitrogen source, then it is equipped with certain
The carbon black reduction TiO of amount2, in logical N2Under the conditions of carbonizing reduction prepare（W, Nb, Ti）（C, N）Five yuan of solid-solution powders.By this
Solid-solution powder obtained by method preparation has very high solid solubility, is phase structure by XRD analysis, while the purity of product
Height, oxygen content is low, and composition is controllable.
Five yuan of solid solution excellent performances of the present invention, prepare with low cost, the better performances by using cheap
NbC replaces TaC to reduce the preparation cost of five yuan of solid solution；The solid solubility of five yuan of solid solution is high and product purity is high, is used for
Ceramic tool, can greatly improve the cutting ability of ceramic tool.
Brief description of the drawings
Fig. 1 is the XRD spectrum of solid-solution powder in the embodiment of the present invention 1.
Embodiment
The present invention is described in detail below with reference to embodiment.It should be noted that in the case where not conflicting, the present invention
In embodiment and the feature in embodiment can be mutually combined.
Embodiment 1
Granularity is used for 1.0 μm of TiO2, granularity be 2.0 μm WC, NbC as raw material, and add hydrocarbon black powder as also
Former agent, its quality proportioning TiO2:WC:NbC:C=55:12:13:20.First, each material powder is weighed by proportioning, then will weighed
Good powder is fitted into mix 24h in V-type blender after draws off, then the compound being well mixed is made 0.5 with drum pelletizer ~
1.0mm or so pellet；Again with press by above-mentioned pellet be suppressed into a diameter of 60mm, be highly 50mm material base, by material base
It is put into graphite boat, and is positioned in carbon shirt-circuiting furnace, in N2Atmosphere, at 1750 DEG C reduction obtain five yuan of solid-solution powders.
The chemical formula of the five yuan of solid solution finally obtained is（W0.1Nb0.2Ti0.7）（C0.63N0.37）, obtained five yuan of solid solutions
The average grain diameter of body powder is 1.75 μm, and the chemical composition of five yuan of solid solution is as shown in table 1.
The chemical composition of 1 five yuan of solid solution of table
| Element | W | Ti% | Nb | N | Ct | Cf | O |
| Test value（wt.%） | 16.7 | 51.0 | 15.7 | 6.6 | 9.62 | 0.04 | 0.22 |
Obtained powdered ingredients are consistent with design load substantially as can be seen from the above table, and oxygen content is very low（≤0.22%）, powder has
Higher purity（＞ 99.7%)；Wherein, Ct is the total carbon content of solid solution, and Cf is that do not have the good free carbon of solid solution in solid solution
Content, Cf and O belong to miscellaneous, and content is the smaller the better.
The XRD spectrum of solid-solution powder in Fig. 1 and the contrast of respective standard PDF cards are understood that gained solid-solution powder is
Single-phase material, and crystallinity is high.
Claims (10)
1. a kind of five yuan of solid solution, it is characterised in that the chemical formula of five yuan of solid solution is（W0.05-0.15Nb0.15- 0.25Ti0.65-0.75）（C0.45-0.60N0.35-0.55）.
2. five yuan of solid solution according to claim 1, it is characterised in that the chemical formula of five yuan of solid solution is
（W0.08-0.12Nb0.18-0.22Ti0.68-0.72）（C0.48-0.53N0.47-0.53）.
3. five yuan of solid solution according to claim 1, it is characterised in that the chemical formula of five yuan of solid solution is
（W0.1Nb0.2Ti0.7）（C0.5N0.5）.
4. the preparation method of a kind of five yuan of solid solution as described in any one of claim 1 ~ 3, it is characterised in that including following step
Suddenly：
（1）With TiO2, WC, NbC and hydrocarbon black powder be raw material, the institute of above-mentioned various raw materials is calculated by the composition of five yuan of solid solution
Quality is needed, and weighs above-mentioned various raw materials respectively, mixing obtains raw mixture；
（2）By step（1）The raw mixture of middle acquisition is fitted into blender, is drawn off after 22 ~ 26h of mixing, then will mix equal
0.5 ~ 1.0mm pellet is made in even compound, then is pressed into agglomerate with press；
（3）By step（2）The agglomerate of middle acquisition is put into graphite boat, in N2Atmosphere, reduce at 1700 ~ 1900 DEG C, reaction is obtained
Five yuan of solid-solution powders.
5. the preparation method of five yuan of solid solution according to claim 4, it is characterised in that step（1）Middle raw material TiO2、WC、
The quality proportioning of NbC and hydrocarbon black powder is 55:12:13:20.
6. the preparation method of five yuan of solid solution according to claim 4, it is characterised in that step（2）In blender be V
Type blender.
7. the preparation method of five yuan of solid solution according to claim 4, it is characterised in that step（2）Middle incorporation time is
24h。
8. the preparation method of five yuan of solid solution according to claim 4, it is characterised in that step（2）Middle reduction temperature is
1750℃。
9. the preparation method of five yuan of solid solution according to claim 4, it is characterised in that step（3）Five yuan of middle acquisition
The average grain diameter of solid-solution powder is 1.5 ~ 2.0 μm.
10. five yuan of solid solution that a kind of preparation method according to any one of claim 4 ~ 9 is obtained are in ceramic tool
Application in material preparation.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004344A (en) * | 2019-03-20 | 2019-07-12 | 长沙众鑫达工具有限公司 | A kind of cutter material and preparation method thereof |
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| JPH02125822A (en) * | 1988-11-01 | 1990-05-14 | Daido Steel Co Ltd | Manufacture of high strength conducting material and high strength conducting material |
| CN1248233A (en) * | 1997-02-27 | 2000-03-22 | Omg美国公司 | Method for making submicrometer transition metal carbonitrides |
| CN102173418A (en) * | 2010-12-31 | 2011-09-07 | 长沙伟徽高科技新材料股份有限公司 | Metallic carbide superfine powder used for preparing superfine crystalline cemented hard alloy and preparation process thereof |
| CN102719720A (en) * | 2011-03-29 | 2012-10-10 | 厦门钨业股份有限公司 | Method for preparing (Ti, Mo, W(Ta, Nb)) (C, N) solid-solution powder |
| CN102787266A (en) * | 2012-09-04 | 2012-11-21 | 四川大学 | Titanium carbonitride based metal ceramic based on high-entropy alloy binder phase and preparation method of metal ceramic |
| CN104131191A (en) * | 2014-07-18 | 2014-11-05 | 长沙伟徽高科技新材料股份有限公司 | Preparation method of solid solution for pentabasic hard alloy |
| CN104451321A (en) * | 2014-12-08 | 2015-03-25 | 长沙伟徽高科技新材料股份有限公司 | Tungsten titanium niobium zirconium carbide solid solution powder and preparation method thereof |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58151371A (en) * | 1982-02-25 | 1983-09-08 | 住友電気工業株式会社 | Manufacture of silicon nitride sintered body |
| JPH02125822A (en) * | 1988-11-01 | 1990-05-14 | Daido Steel Co Ltd | Manufacture of high strength conducting material and high strength conducting material |
| CN1248233A (en) * | 1997-02-27 | 2000-03-22 | Omg美国公司 | Method for making submicrometer transition metal carbonitrides |
| CN102173418A (en) * | 2010-12-31 | 2011-09-07 | 长沙伟徽高科技新材料股份有限公司 | Metallic carbide superfine powder used for preparing superfine crystalline cemented hard alloy and preparation process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110004344A (en) * | 2019-03-20 | 2019-07-12 | 长沙众鑫达工具有限公司 | A kind of cutter material and preparation method thereof |
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Application publication date: 20171013 |