CN105112756A - Titanium carbonitride composited alumina cermet of cutting tool and preparation method thereof - Google Patents
Titanium carbonitride composited alumina cermet of cutting tool and preparation method thereof Download PDFInfo
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- CN105112756A CN105112756A CN201510490498.9A CN201510490498A CN105112756A CN 105112756 A CN105112756 A CN 105112756A CN 201510490498 A CN201510490498 A CN 201510490498A CN 105112756 A CN105112756 A CN 105112756A
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Abstract
The invention discloses a titanium carbonitride composited alumina cermet of a cutting tool and a preparation method of the alumina cermet. The titanium carbonitride composited alumina cermet comprises the following components in percentage by weight: 50-65% of Ti (C, N), 30-45% of Al2O3, 0.5-1% of MgO, and 3-5% of mixture of Ni and Mo, wherein the weight ratio of C to N is 7: 3, and the weight ratio of Ni to Mo is 1: 1; Al2O3 is ultrafine powder with 0.2-0.5 microns, and the purity is more than 99.9%; the granularity of Ti (C, N), MgO, Ni and Mo is 1 to 3 microns, and the purity is more than 99%. The preparation method of the titanium carbonitride composited alumina cermet comprises the following steps: mixing materials, namely, performing ball milling for 48 to 72 hours through a stirring mill by using industrial alcohol as a medium and a hard alloy ball as a milling medium; drying, namely, blowing with nitrogen flow at the temperature of 120 DEG C for 12 hours; screening, thermally pressing and roasting. According to the titanium carbonitride composited alumina cermet of the cutting tool and the preparation method, titanium carbonitride in which the weight ratio of C to N is 7: 3 is used as the raw material, thus the HV50 of the cutting tool is up to 2050-2200, and as a result, the abrasion resistance and the service life of the cutting tool can be improved and prolonged.
Description
Technical field
The present invention relates to cermet material technical field, be specifically related to a kind of titanium carbonitride composite alumina ceramic tool material and preparation method thereof.
Background technology
Along with development that is high, new technology, mechanical industry proposes the more strict and requirement of harshness to cutter material.The material that such as workhardness is higher, higher stock-removing efficiency, precision work and realize unattended etc., this just requires to improve the intensity of cutter material, toughness, wear-resisting and resistance to sudden heating etc.Ceramice kuife material based on nitrided silicon is with highly purified Si
3n
4powder is raw material, adds Y
20
3, Mg0, Zr0
2and Hf0
2deng agglutinant or wear-resisting phase Al
20
3or the sintering such as strengthening phase SiCw forms.Silicon nitride base ceramic cutting tool is applicable to the materials such as cutting cast iron, superalloy and nickel-base alloy, is particularly useful for comparatively large inflow or interrupted cut.With general Al
20
3base pottery compares, and its principal feature has higher bending strength and fracture toughness property, but on the low side owing to sintering difficulty, hardness and wear resistance, limits the widespread use of this kind of cutter.
Summary of the invention
In order to solve the defect that above-mentioned technology exists, the invention provides a kind of titanium carbonitride composite alumina ceramic tool material and preparation method thereof.
The present invention realizes the technical scheme that above-mentioned technique effect adopts:
A kind of titanium carbonitride composite alumina ceramic tool material, each compositions in weight percentage comprises: the Ti (C, N) of 50 ~ 65%, the Al of 30 ~ 45%
2o
3, the MgO of 0.5 ~ 1% and Ni and Mo of 3 ~ 5% mixture, wherein, in Ti (C, N), C:N=7:3 by weight proportion, in the mixture of Ni and Mo, Ni:Mo=1:1 by weight proportion.
Above-mentioned a kind of titanium carbonitride composite alumina ceramic tool material, Al
2o
3for granularity is the ultrafine powder of 0.2 ~ 0.5 micron, purity >99.9%.
Above-mentioned a kind of titanium carbonitride composite alumina ceramic tool material, Ti (C, N) for granularity is the ultrafine powder of 1 ~ 3 micron, purity >99.9%.
Above-mentioned a kind of titanium carbonitride composite alumina ceramic tool material, MgO is granularity the ultrafine powder of 1 ~ 3 micron, purity >99.9%.
Above-mentioned a kind of titanium carbonitride composite alumina ceramic tool material, Ni is granularity the ultrafine powder of 1 ~ 3 micron, purity >99.9%.
Above-mentioned a kind of titanium carbonitride composite alumina ceramic tool material, Mo is granularity the ultrafine powder of 1 ~ 3 micron, purity >99.9%.
Make a preparation method for above-mentioned titanium carbonitride composite alumina ceramic tool material, comprise the steps:
1) batch mixing: above-mentioned composition is mixed according to component ratio, adopting Ball-stirring mill, take industrial spirit as medium, and sintered carbide ball is situated between for mill, by weight proportion, expects: mill is situated between: alcohol=1:5 ~ 10:0.8 ~ 1, Ball-milling Time 48 ~ 72 hours;
2) dry: air-blowing 12 hours in the nitrogen gas stream of 120 DEG C;
3) sieve: by step 2) in dry obtained mixture and filter, obtaining granularity is 40 object mixtures;
4) hot pressed sintering: sinter 0.5h at the temperature of 1680-1750 DEG C and 20-30MPa air pressure environment.
Beneficial effect of the present invention is: the present invention adopts the titanium carbonitride raw material of C:N=7:3, under this preparation method, the HV50 of cutter can be increased to 2050-2200, thus improve wear resistance and the work-ing life of cutter, saves tooling cost, improves processing quality.
Embodiment
For making to do further understanding to the present invention, below in conjunction with specific embodiment, the invention will be further described:
Embodiment 1:
A kind of titanium carbonitride composite alumina ceramic tool material, each compositions in weight percentage comprises: the Ti (C, N) of 65%, the Al of 30%
2o
3, the MgO of 0.5% and Ni and Mo of 3% mixture, wherein, in Ti (C, N), C:N=7:3 by weight proportion, in the mixture of Ni and Mo, Ni:Mo=1:1 by weight proportion.Al
2o
3for granularity is the ultrafine powder of 0.2 ~ 0.5 micron, purity >99.9%.Ti (C, N) for granularity is the ultrafine powder of 1 ~ 3 micron, purity >99.9%.MgO is granularity the ultrafine powder of 1 ~ 3 micron, purity >99.9%.Ni is granularity the ultrafine powder of 1 ~ 3 micron, purity >99.9%.Mo is granularity the ultrafine powder of 1 ~ 3 micron, purity >99.9%.
Make a preparation method for above-mentioned titanium carbonitride composite alumina ceramic tool material, comprise the steps:
1) batch mixing: above-mentioned composition is mixed according to component ratio, adopting Ball-stirring mill, take industrial spirit as medium, and sintered carbide ball is situated between for mill, by weight proportion, expects: mill is situated between: alcohol=1:10:1, Ball-milling Time 48 ~ 72 hours;
2) dry: air-blowing 12 hours in the nitrogen gas stream of 120 DEG C;
3) sieve: by step 2) in dry obtained mixture and filter, obtaining granularity is 40 object mixtures;
4) hot pressed sintering: sinter 0.5h at the temperature of 1680-1750 DEG C and 20-30MPa air pressure environment.
Embodiment 2:
A kind of titanium carbonitride composite alumina ceramic tool material, each compositions in weight percentage comprises: the Ti (C, N) of 50%, the Al of 45%
2o
3, the MgO of 1% and Ni and Mo of 5% mixture, wherein, in Ti (C, N), C:N=7:3 by weight proportion, in the mixture of Ni and Mo, Ni:Mo=1:1 by weight proportion.
In above-mentioned a kind of titanium carbonitride composite alumina ceramic tool material, Al
2o
3for granularity is the ultrafine powder of 0.2 ~ 0.5 micron, purity >99.9%.Ti (C, N) for granularity is the ultrafine powder of 1 ~ 3 micron, purity >99.9%.MgO is granularity the ultrafine powder of 1 ~ 3 micron, purity >99.9%.Ni is granularity the ultrafine powder of 1 ~ 3 micron, purity >99.9%.Mo is granularity the ultrafine powder of 1 ~ 3 micron, purity >99.9%.
Make a preparation method for above-mentioned titanium carbonitride composite alumina ceramic tool material, comprise the steps:
1) batch mixing: above-mentioned composition is mixed according to component ratio, adopting Ball-stirring mill, take industrial spirit as medium, and sintered carbide ball is situated between for mill, by weight proportion, expects: mill is situated between: alcohol=1:5:0.8, Ball-milling Time 48-72 hour;
2) dry: air-blowing 12 hours in the nitrogen gas stream of 120 DEG C;
3) sieve: by step 2) in dry obtained mixture and filter, obtaining granularity is 40 object mixtures;
4) hot pressed sintering: sinter 0.5h at the temperature of 1680-1750 DEG C and 20-30MPa air pressure environment.
Embodiment 3:
A kind of titanium carbonitride composite alumina ceramic tool material, each compositions in weight percentage comprises: the Ti (C, N) of 57%, the Al of 38%
2o
3, the MgO of 0.7% and Ni and Mo of 4% mixture, wherein, in Ti (C, N), C:N=7:3 by weight proportion, in the mixture of Ni and Mo, Ni:Mo=1:1 by weight proportion.
In above-mentioned a kind of titanium carbonitride composite alumina ceramic tool material, Al
2o
3for granularity is the ultrafine powder of 0.2 ~ 0.5 micron, purity >99.9%.Ti (C, N) for granularity is the ultrafine powder of 1 ~ 3 micron, purity >99.9%.MgO is granularity the ultrafine powder of 1 ~ 3 micron, purity >99.9%.Ni is granularity the ultrafine powder of 1 ~ 3 micron, purity >99.9%.Mo is granularity the ultrafine powder of 1 ~ 3 micron, purity >99.9%.
Make a preparation method for above-mentioned titanium carbonitride composite alumina ceramic tool material, comprise the steps:
1) batch mixing: above-mentioned composition is mixed according to component ratio, adopting Ball-stirring mill, take industrial spirit as medium, and sintered carbide ball is situated between for mill, by weight proportion, expects: mill is situated between: alcohol=1:7:0.9, Ball-milling Time 48-72 hour;
2) dry: air-blowing 12 hours in the nitrogen gas stream of 120 DEG C;
3) sieve: by step 2) in dry obtained mixture and filter, obtaining granularity is 40 object mixtures;
4) hot pressed sintering: sinter 0.5h at the temperature of 1680-1750 DEG C and 20-30MPa air pressure environment.
The present invention adopts the titanium carbonitride raw material of C:N=7:3, under this preparation method, the HV50 of cutter can be increased to 2050-2200, thus improve wear resistance and the work-ing life of cutter, saves tooling cost, improves processing quality.
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and specification sheets; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention; these changes and improvements all fall in claimed scope of the present invention, and the protection domain of application claims is defined by appending claims and equivalent thereof.
Claims (7)
1. a titanium carbonitride composite alumina ceramic tool material, is characterized in that, each compositions in weight percentage comprises: the Ti (C, N) of 50 ~ 65%, the Al of 30 ~ 45%
2o
3, the MgO of 0.5 ~ 1% and Ni and Mo of 3 ~ 5% mixture, wherein, in Ti (C, N), C:N=7:3 by weight proportion, in the mixture of Ni and Mo, Ni:Mo=1:1 by weight proportion.
2. a kind of titanium carbonitride composite alumina ceramic tool material according to claim 1, is characterized in that, Al
2o
3for granularity is the ultrafine powder of 0.2 ~ 0.5 micron, purity >99.9%.
3. a kind of titanium carbonitride composite alumina ceramic tool material according to claim 1, is characterized in that, Ti (C, N) for granularity is the ultrafine powder of 1 ~ 3 micron, purity >99.9%.
4. a kind of titanium carbonitride composite alumina ceramic tool material according to claim 1, is characterized in that, MgO is granularity the ultrafine powder of 1 ~ 3 micron, purity >99.9%.
5. a kind of titanium carbonitride composite alumina ceramic tool material according to claim 1, is characterized in that, Ni is granularity the ultrafine powder of 1 ~ 3 micron, purity >99.9%.
6. a kind of titanium carbonitride composite alumina ceramic tool material according to claim 1, is characterized in that, Mo is granularity the ultrafine powder of 1 ~ 3 micron, purity >99.9%.
7. make a preparation method for titanium carbonitride composite alumina ceramic tool material described in claim 1, it is characterized in that, comprise the steps:
1) batch mixing: above-mentioned composition is mixed according to component ratio, adopting Ball-stirring mill, take industrial spirit as medium, and sintered carbide ball is situated between for mill, by weight proportion, expects: mill is situated between: alcohol=1:5 ~ 10:0.8 ~ 1, Ball-milling Time 48 ~ 72 hours;
2) dry: air-blowing 12 hours in the nitrogen gas stream of 120 DEG C;
3) sieve: by step 2) in dry obtained mixture and filter, obtaining granularity is 40 object mixtures;
4) hot pressed sintering: sinter 0.5h at the temperature of 1680-1750 DEG C and 20-30MPa air pressure environment.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106278200A (en) * | 2016-08-16 | 2017-01-04 | 安徽瑞泰新材料科技有限公司 | A kind of high abrasion aluminium oxide ceramic ball and preparation method thereof |
| CN108751955A (en) * | 2018-07-10 | 2018-11-06 | 武汉科技大学 | A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof |
| CN112658257A (en) * | 2020-11-03 | 2021-04-16 | 河源富马硬质合金股份有限公司 | Metal ceramic cutter preparation device and preparation method thereof |
| CN114273659A (en) * | 2021-12-23 | 2022-04-05 | 湘潭大学 | Graphene/nano Al2O3Toughened Ti (C, N) -based metal ceramic cutter material and preparation method thereof |
| CN115594490A (en) * | 2022-08-25 | 2023-01-13 | 山东大学（Cn） | Low-thermal-expansion alumina-based ceramic cutter material and preparation process thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106278200A (en) * | 2016-08-16 | 2017-01-04 | 安徽瑞泰新材料科技有限公司 | A kind of high abrasion aluminium oxide ceramic ball and preparation method thereof |
| CN108751955A (en) * | 2018-07-10 | 2018-11-06 | 武汉科技大学 | A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof |
| CN108751955B (en) * | 2018-07-10 | 2021-02-19 | 武汉科技大学 | Aluminum oxide-titanium carbonitride complex-phase bulletproof ceramic and preparation method thereof |
| CN112658257A (en) * | 2020-11-03 | 2021-04-16 | 河源富马硬质合金股份有限公司 | Metal ceramic cutter preparation device and preparation method thereof |
| CN114273659A (en) * | 2021-12-23 | 2022-04-05 | 湘潭大学 | Graphene/nano Al2O3Toughened Ti (C, N) -based metal ceramic cutter material and preparation method thereof |
| CN114273659B (en) * | 2021-12-23 | 2023-10-13 | 湘潭大学 | Graphene/nano Al 2 O 3 Toughened Ti (C, N) -based metal ceramic cutter material and preparation method thereof |
| CN115594490A (en) * | 2022-08-25 | 2023-01-13 | 山东大学（Cn） | Low-thermal-expansion alumina-based ceramic cutter material and preparation process thereof |
| CN115594490B (en) * | 2022-08-25 | 2023-04-14 | 山东大学 | Low-thermal-expansion alumina-based ceramic cutter material and preparation process thereof |
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