CN108004449A - A kind of ultra-fine cemented carbide and its manufacture method for processing of stone - Google Patents
A kind of ultra-fine cemented carbide and its manufacture method for processing of stone Download PDFInfo
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- CN108004449A CN108004449A CN201610986598.5A CN201610986598A CN108004449A CN 108004449 A CN108004449 A CN 108004449A CN 201610986598 A CN201610986598 A CN 201610986598A CN 108004449 A CN108004449 A CN 108004449A
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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
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
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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
- C22C29/08—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 based on tungsten carbide
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- Metallurgy (AREA)
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- Powder Metallurgy (AREA)
Abstract
The present invention discloses a kind of processing of stone ultra-fine cemented carbide material and its manufacture method, which uses superfine carbide WC, TiC as hard phase, using Co, Mo as Binder Phase, with TaC and Cr3C2As inhibitor, the constituent and weight content of the alloy are as follows：WC：80~90%, Co：3 4.5%, Mo：0.5 1%, TaC：1~3%, Cr3C2：0.3 0.5%, TiC：1.5 10.5%.The present invention is used as the hard phase of hard alloy by adding TiC, can greatly improve the hardness and wearability of alloy；TiC is added in a manner of same Mo forms solid solution, is effectively raised wetabilitys of the TiC with Binder Phase Co, is improved alloy interface, improves the intensity of alloy；TaC, Cr are added in the alloy3C2The crystal grain of alloy has been refined, has dropped low-alloyed voidage, has improved the comprehensive performance of alloy, while red hardness of the alloy in cutting can also be improved；By using low pressure sintering, reduce the hole of alloy, improve performance.
Description
Technical field
The invention belongs to alloy material manufacturing process technology field, is a kind of ultra-fine hard for processing of stone specifically
Matter alloy and its manufacture method.
Background technology
Hard alloy is a kind of alloy material made of refractory metal box binding metal is by powder metallurgical technique.Have
Hardness is high, wear-resisting, intensity and a series of excellent performances such as good toughness, heat-resisting, corrosion-resistant, it is widely used as cutter material.
The cutter of processing of stone has very high using WC-Co hard alloy cutter, WC-Co hard alloy at present
Intensity, but the hardness of alloy is relatively low, and in process, tool wear is very fast, greatly shortens cutting-tool's used life.Have
The hardness that alloy is improved by adding a small amount of TiC, improve its wearability, such as YT series hard alloys.But addition TiC is being carried
The intensity of alloy is also reduced while high alloy hardness, tipping easily occurs during cutting stone material, causes the damage of cutter
Ruin.
The content of the invention
The purpose of the present invention is according to current processing of stone hard alloy cutter there are the problem of, propose one kind can have
Effect improves the hardness of hard alloy, and can guarantee that the compound of titanium based ultra-fine hard alloy containing carbonization of the intensity of hard alloy is matched somebody with somebody
Side；It is a further object of the present invention to provide a kind of process for manufacturing processing of stone cemented carbide material.
To reach above-mentioned purpose, scheme of the present invention is as follows：
A kind of processing of stone ultra-fine cemented carbide material, its main points are：The alloy is made using superfine carbide WC, TiC
For hard phase, using Co, Mo as Binder Phase, with TaC and Cr3C2As inhibitor, the constituent and weight content of the alloy are such as
Under：WC：80~90%, Co：3-4.5%, Mo：0.5-1%, TaC：1~3%, Cr3C2：0.3-0.5%, TiC：1.5-
10.5%.
In order to make the present invention that there is more superior hardness and excellent toughness, 0.8 μm of the grain size selected as of above-mentioned WC, institute
State 1.42 μm of the grain size selected as of Co.
The manufacture method of a kind of processing of stone ultra-fine cemented carbide material, it is characterised in that include the following steps：
(1) wet-milling：By WC, TiC, TaC, Cr3C2, Mo add ball milling bucket in mathematical computations ratio, while by 300~
The absolute ethyl alcohol that 400ml/kg adds purity 99.99% is used as ball-milling medium, when first ball milling 20~48 is small, is then adding bonding
Phase Co, then when Ball-milling Time 24-36 is small, ball grinding cylinder is stirred when 12 is small once in mechanical milling process；
(2) it is dry：Wet feed after ball milling is crossed into 320 mesh sieve net filtrations, and dry in vacuum drying chamber, drying temperature 90
℃；
(3) glue is mixed：Dried powder crosses 80 mesh sieve nets, by drying after 90ml/kg addition Petrol-rubber Solutions, then makes
Grain is stand-by；
(4) suppress：Mixture, is pressed into the shape and size of needs by the powder that step (3) is obtained on forcing press；
(5) sinter：Finished product obtained by step (4) is positioned in the degreasing sintered all-in-one oven of low pressure and is sintered；
(6) post-process：Cool to the finished product in step (5) with the furnace room temperature, alloy carries out sandblasting post processing, so as to be made
Processing of stone ultra-fine cemented carbide material.
As preferred：TiC is added with (Ti, MO) C solid solution thereofs.
As priority：A Mo powder parts are added with (Ti, W, MO) C solid solution thereofs, and a part is with the shape of Mo powder
Formula adds.
As preferred：When WC, VC, NbC are proportionally added into ball milling bucket in step (1), ratio of grinding media to material 3: 1~4.5: 1.
As preferred：It is characterized in that：Sintering process is divided into three sintering stages, degumming stage in step (5)：Temperature from
Room temperature is appreciated 500 DEG C, time 1.5h；The solid-phase sintering stage：Temperature rises to 1230 DEG C from 500 DEG C, time 1.5h；Most high fever
The knot stage：Temperature is 1400 DEG C, keeps the temperature 1.5h, is passed through 6MPa argon gas.
The present invention remarkable result be：The present invention is used as the hard phase of hard alloy by adding TiC, can greatly improve
The hardness and wearability of alloy；TiC is added in a manner of same Mo forms solid solution, effectively raises TiC with Binder Phase Co
Wetability, improve alloy interface, improve the intensity of alloy；TaC, Cr are added in the alloy3C2The crystal grain of alloy has been refined,
Low-alloyed voidage is dropped, improves the comprehensive performance of alloy, while red hardness of the alloy in cutting can also be improved；By using
Low pressure sintering, reduces the hole of alloy, improves performance.
Embodiment
The present invention is described in further detail below in conjunction with embodiment.
Embodiment 1：
A kind of processing of stone ultra-fine cemented carbide material, its main points are：The alloy is made using superfine carbide WC, TiC
For hard phase, using Co, Mo as Binder Phase, with TaC and Cr3C2As inhibitor, the constituent and weight content of the alloy are such as
Under：WC：85%, Co：3%, Mo：0.5%, TaC：1.5%, Cr3C2：0.3%, TiC：9.3%, C：0.4%.
In order to make the present invention that there is more superior hardness and excellent toughness, 0.8 μm of the grain size selected as of above-mentioned WC, institute
State 1.42 μm of the grain size selected as of Co.
The manufacture method of a kind of processing of stone ultra-fine cemented carbide material, it is characterised in that include the following steps：
(1) wet-milling：By WC, TiC, TaC, Cr3C2, Mo add ball milling bucket in mathematical computations ratio, while by 300~
The absolute ethyl alcohol that 400ml/kg adds purity 99.99% is used as ball-milling medium, when first ball milling 48 is small, then in addition Binder Phase
Co, then when Ball-milling Time 24 is small, ball grinding cylinder is stirred when 12 is small once in mechanical milling process；
(2) it is dry：Wet feed after ball milling is crossed into 320 mesh sieve net filtrations, and dry in vacuum drying chamber, drying temperature 90
℃；
(3) glue is mixed：Dried powder crosses 80 mesh sieve nets, by drying after 90ml/kg addition Petrol-rubber Solutions, then makes
Grain is stand-by；
(4) suppress：Mixture, is pressed into the shape and size of needs by the powder that step (3) is obtained on forcing press；
(5) sinter：Finished product obtained by step (4) is positioned in the degreasing sintered all-in-one oven of low pressure and is sintered；
(6) post-process：Cool to the finished product in step (5) with the furnace room temperature, alloy carries out sandblasting post processing, so as to be made
Processing of stone ultra-fine cemented carbide material.
Embodiment 2：
A kind of processing of stone ultra-fine cemented carbide material, its main points are：The alloy is made using superfine carbide WC, TiC
For hard phase, using Co, Mo as Binder Phase, with TaC and Cr3C2As inhibitor, the constituent and weight content of the alloy are such as
Under：WC：87%, Co：4.5%, Mo：0.5%, TaC：1%, Cr3C2：0.5%, TiC：7.5%.
In order to make the present invention that there is more superior hardness and excellent toughness, 0.8 μm of the grain size selected as of above-mentioned WC, on
State Mo and TiC and be 1.42 μm of the grain size selected as with Co described in the form of (Ti, MO) C solid solution.
The manufacture method of a kind of processing of stone ultra-fine cemented carbide material, it is characterised in that include the following steps：
(1) wet-milling：By WC, TiC, TaC, Cr3C2, Mo add ball milling bucket in mathematical computations ratio, while by 300~
The absolute ethyl alcohol that 400ml/kg adds purity 99.99% is used as ball-milling medium, when first ball milling 48 is small, then in addition Binder Phase
Co, then when Ball-milling Time 24 is small, ball grinding cylinder is stirred when 12 is small once in mechanical milling process；
(2) it is dry：Wet feed after ball milling is crossed into 320 mesh sieve net filtrations, and dry in vacuum drying chamber, drying temperature 90
℃；
(3) glue is mixed：Dried powder crosses 80 mesh sieve nets, by drying after 90ml/kg addition Petrol-rubber Solutions, then makes
Grain is stand-by；
(4) suppress：Mixture, is pressed into the shape and size of needs by the powder that step (3) is obtained on forcing press；
(5) sinter：Finished product obtained by step (4) is positioned in the degreasing sintered all-in-one oven of low pressure and is sintered；
(6) post-process：Cool to the finished product in step (5) with the furnace room temperature, alloy carries out sandblasting post processing, so as to be made
Processing of stone ultra-fine cemented carbide material.
Embodiment 3：
A kind of processing of stone ultra-fine cemented carbide material, its main points are：The alloy is made using superfine carbide WC, TiC
For hard phase, using Co, Mo as Binder Phase, with TaC and Cr3C2As inhibitor, the constituent and weight content of the alloy are such as
Under：WC：82%, Co：4%, Mo：1%, TaC：2.5%, Cr3C2：0.5%, TiC：10%,.
In order to make the present invention that there is more superior hardness and excellent toughness, 0.8 μm of the grain size selected as of above-mentioned WC, on
State Mo and TiC and be 1.42 μm of the grain size selected as with Co described in the form of (Ti, MO) C solid solution.
The manufacture method of a kind of processing of stone ultra-fine cemented carbide material, it is characterised in that include the following steps：
(1) wet-milling：By WC, TiC, TaC, Cr3C2, Mo add ball milling bucket in mathematical computations ratio, while by 300~
The absolute ethyl alcohol that 400ml/kg adds purity 99.99% is used as ball-milling medium, when first ball milling 48 is small, then in addition Binder Phase
Co, then when Ball-milling Time 24 is small, ball grinding cylinder is stirred when 12 is small once in mechanical milling process；
(2) it is dry：Wet feed after ball milling is crossed into 320 mesh sieve net filtrations, and dry in vacuum drying chamber, drying temperature 90
℃；
(3) glue is mixed：Dried powder crosses 80 mesh sieve nets, by drying after 90ml/kg addition Petrol-rubber Solutions, then makes
Grain is stand-by；
(4) suppress：Mixture, is pressed into the shape and size of needs by the powder that step (3) is obtained on forcing press；
(5) sinter：Finished product obtained by step (4) is positioned in the degreasing sintered all-in-one oven of low pressure and is sintered；
(6) post-process：Cool to the finished product in step (5) with the furnace room temperature, alloy carries out sandblasting post processing, so as to be made
Processing of stone ultra-fine cemented carbide material.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not limitation with the present invention, all in essence of the invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of processing of stone ultra-fine cemented carbide material, its main points are：The alloy uses superfine carbide WC, TiC conduct
Hard phase, using Co, Mo as Binder Phase, with TaC and Cr3C2As inhibitor, the constituent and weight content of the alloy are such as
Under：WC：80~90%, Co：3-4.5%, Mo：0.5-1%, TaC：1~3%, Cr3C2：0.3-0.5%, TiC：1.5-
10.5%.
A kind of 2. processing of stone ultra-fine cemented carbide material according to claim 1, it is characterised in that：The crystalline substance of the WC
Granularity selection is 0.8 μm, 1.42 μm of the grain size selected as of the Co.
A kind of 3. manufacture method of processing of stone ultra-fine cemented carbide material according to claim 1, it is characterised in that
Include the following steps：
(1) wet-milling：By WC, TiC, TaC, Cr3C2, Mo add ball milling bucket in mathematical computations ratio, while press 300~400ml/kg
The absolute ethyl alcohol for adding purity 99.99% is used as ball-milling medium, when first ball milling 20~48 is small, then in addition Binder Phase Co, then
When Ball-milling Time 24-36 is small, ball grinding cylinder is stirred when 12 is small once in mechanical milling process；
(2) it is dry：Wet feed after ball milling is crossed into 320 mesh sieve net filtrations, and dry in vacuum drying chamber, 90 DEG C of drying temperature；
(3) glue is mixed：Dried powder crosses 80 mesh sieve nets, and by drying after 90ml/kg addition Petrol-rubber Solutions, then granulation is treated
With；
(4) suppress：Mixture, is pressed into the shape and size of needs by the powder that step (3) is obtained on forcing press；
(5) sinter：Finished product obtained by step (4) is positioned in the degreasing sintered all-in-one oven of low pressure and is sintered；
(6) post-process：Cool to the finished product in step (5) with the furnace room temperature, alloy carries out sandblasting post processing, so that stone material be made
Ultra-fine cemented carbide material is used in processing.
A kind of 4. manufacture method of processing of stone ultra-fine cemented carbide material according to claim 3, it is characterised in that：
TiC is added with (Ti, MO) C solid solution thereofs.
A kind of 5. manufacture method of processing of stone ultra-fine cemented carbide material according to claim 3, it is characterised in that：
A Mo powder parts are added with (Ti, W, MO) C solid solution thereofs, and a part is added in the form of Mo powder.
A kind of 6. manufacture method of processing of stone ultra-fine cemented carbide material according to claim 3, it is characterised in that：
When WC, VC, NbC are proportionally added into ball milling bucket in step (1), ratio of grinding media to material 3: 1~4.5: 1.
A kind of 7. manufacture method of processing of stone ultra-fine cemented carbide material according to claim 3, it is characterised in that：
Sintering process is divided into three sintering stages, degumming stage in step (5)：Temperature is appreciated 500 DEG C from room temperature, time 1.5h；Gu
The phase sintering stage：Temperature rises to 1230 DEG C from 500 DEG C, time 1.5h；Highest sintering stage：Temperature is 1400 DEG C, insulation
1.5h, is passed through 6MPa argon gas.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610986598.5A CN108004449A (en) | 2016-11-02 | 2016-11-02 | A kind of ultra-fine cemented carbide and its manufacture method for processing of stone |
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| CN201610986598.5A CN108004449A (en) | 2016-11-02 | 2016-11-02 | A kind of ultra-fine cemented carbide and its manufacture method for processing of stone |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109439994A (en) * | 2018-12-12 | 2019-03-08 | 长沙黑金刚实业有限公司 | A kind of grinding-material and preparation method, application method and product obtained |
| CN110387496A (en) * | 2019-08-26 | 2019-10-29 | 广东技术师范大学 | A kind of WC-TiC-Co base gradient hard alloy and preparation method thereof of the surface layer without TiC phase |
| CN113634752A (en) * | 2021-08-20 | 2021-11-12 | 河源富马硬质合金股份有限公司 | Manufacturing method of high-toughness polycrystalline hard alloy extruded round rod |
-
2016
- 2016-11-02 CN CN201610986598.5A patent/CN108004449A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109439994A (en) * | 2018-12-12 | 2019-03-08 | 长沙黑金刚实业有限公司 | A kind of grinding-material and preparation method, application method and product obtained |
| CN109439994B (en) * | 2018-12-12 | 2021-08-10 | 长沙黑金刚实业有限公司 | Grinding material, preparation method, use method and prepared product |
| CN110387496A (en) * | 2019-08-26 | 2019-10-29 | 广东技术师范大学 | A kind of WC-TiC-Co base gradient hard alloy and preparation method thereof of the surface layer without TiC phase |
| CN110387496B (en) * | 2019-08-26 | 2021-07-20 | 广东技术师范大学 | WC-TiC-Co based gradient hard alloy without TiC phase on surface layer and preparation method thereof |
| CN113634752A (en) * | 2021-08-20 | 2021-11-12 | 河源富马硬质合金股份有限公司 | Manufacturing method of high-toughness polycrystalline hard alloy extruded round rod |
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Application publication date: 20180508 |