CN207278191U - A kind of drill bit with PVD coatings - Google Patents
A kind of drill bit with PVD coatings Download PDFInfo
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- CN207278191U CN207278191U CN201720356971.9U CN201720356971U CN207278191U CN 207278191 U CN207278191 U CN 207278191U CN 201720356971 U CN201720356971 U CN 201720356971U CN 207278191 U CN207278191 U CN 207278191U
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Abstract
A kind of drill bit with PVD coatings, it is characterised in that including bit matrix, be attached to the binder course of matrix surface from inside to outside and be repeated in the modulating layer and functional layer in N number of cycle.The binder course is AlCr coatings, its thickness is 0.5 0.8um, and wherein the ratio between amount of material of Al and Cr of AlCr coatings is 70: 30；The modulating layer is AlCr coatings, its thickness is 0.16 0.20um, and wherein the ratio between amount of Al and Cr material of AlCr coatings is 70: 30；The functional layer is TiSi coatings, its thickness is 0.14 0.16um, and the ratio between amount of Ti and Si materials is 85: 15 wherein in TiSi coatings.The modulating layer for being repeated in N number of cycle and the gross thickness of functional layer are 1.3 2.7um, and 4≤N≤6, n are natural number.
Description
Technical field
The utility model belongs to technical field of surface, is related to a kind of process for treating surface of metal bit, particularly
It is related to a kind of PVD coating metal drill bits of nanostructured.
Background technology
In order to improve the wear-resistant of metal bit, at present both at home and abroad frequently with the side such as nitriding, metallic cementation, plating, chemical plating
Method strengthens the surface of drill bit.But treatment process is there are a degree of pollution, and hardness is low.
Physical vapour deposition (PVD) (PVD, physical Vapor Deposition) be modern physics, chemistry, materialogy,
The advanced engineering technology to grow up on the basis of electronics etc. is multidisciplinary.It is true by target (plating thin-film material)
Under Altitude, the process on substrate (needing film-coating workpiece) surface is deposited on by physical process.Use physical gas phase deposition technology
It is the hot spot of Recent study in cheap metal material surface manufacture solid-ceramic coating, is had been achieved with instrument and mould
Successful application, solves the problems, such as the abrasion of cutter and high temperature resistant.Arc ion plating and magnetron sputtering be in PVD methods the most
The manufacturing technology of common solid-ceramic coating, the coating such as common TiN, CrN is exactly to use electric arc on cutter and mould at present
Ion plating technique manufacture.But its hardness such as ceramic coating such as TiN, CrN of conventional arc ion plating manufacture only has the two of nitriding
Times, friction durability is limited, while does not have greasy property.There is significant limitation when bit face uses.
The content of the invention
In order to solve problem above, the utility model proposes a kind of drill bit being surface-treated by PVD.It is new using this practicality
The drill bit being surface-treated by PVD of type, can effectively lift metal bit hardness, wearability and resistance to elevated temperatures, so as to carry
Service life and product quality, the production efficiency of high metal drill bit.
A kind of drill bit being surface-treated by PVD, it is characterised in that including bit matrix 1, be attached to matrix from inside to outside
The binder course 2 on 1 surface and the modulating layer 31 and functional layer 32 for being repeated in N number of cycle.The binder course 2 is AlCr coatings,
Its thickness is 0.5-0.8um, and wherein the ratio between amount of material of Al and Cr of AlCr coatings is 70：30；The modulating layer 31 is
AlCr coatings, its thickness are 0.16-0.20um, and wherein the ratio between amount of Al and Cr material of AlCr coatings is 70：30；Described
Functional layer 32 is TiSi coatings, its thickness is 0.14-0.16um, and the ratio between amount of Ti and Si materials is 85 wherein in TiSi coatings：
15.Described is repeated in the modulating layer 31 and functional layer 32 in N number of cycle, and 4≤N≤6, n are natural number.The gross thickness of film layer
(binder course 2+ modulating layer 31+ functional layers 32) is 1.3-2.7um.
A kind of drill bit being surface-treated by PVD, its treatment process are as follows：
A, vacuumize, heat：1 material of matrix is positioned in vacuum coating equipment first, adjustment equipment vacuum is 6*
10-5Mbar, heating 1h or so so that temperature is increased to 460-480 DEG C.
B, matrix 1 is cleaned：Ion bombardment, bias voltage 10V, molecular pump running frequency from starting vacuumize when
100% drops to 72%, is passed through high-purity hydrogen (H) and 99.999% height that purity is 99.999% at the same time in a device
Purity argon (Ar), the flow of hydrogen (H) is 50-200sccm, and the flow of argon gas (Ar) is 50sccm, duration of ventilation 20-
30min.Then, bias voltage is set to 200V, is passed through high purity argon (Ar) in a device, and the flow of argon gas (Ar) is
50sccm, duration of ventilation 20-30min.
C, binder course 2 is plated：Molecule pump frequency is 72%, is filled with nitrogen (N) in a device so that the pressure in equipment is
2.5*10-2Mbar, singly opens AlCr70/30 targets, arc current 150A, bias voltage 40-120V, coating time period 25-
30min。
D, modulating layer 31 is plated：Molecule pump frequency is 72%, is filled with nitrogen (N) in a device so that the pressure in equipment is
4*10-2Mbar, singly opens AlCr70/30 targets, arc current 180A, bias voltage 120V, coating time period 7-10min.
E, functional layer 32 is plated：Molecule pump frequency is 72%, pours nitrogen (N) in a device so that the pressure in equipment is
4*10-2Mbar, singly opens TiSi85/15 targets, arc current 200A, bias voltage 40V, coating time period 7-10min.
F, above-mentioned steps D, step F are one group, the 4-6 cycle of cycle operation so that gross thickness (the binder course 2+ tune of film layer
Preparative layer 31+ functional layers 32) it is 1.3-2.7um.
G, temperature is reduced to less than 200 DEG C before finally coming out of the stove.
The hardness of coating prepared by the method for the utility model is used to use Rockwell apparatus with reference to power for 3100-3500V
Measurement can reach HF1 standards, and the friction friction coefficient with metal is 0.25, and heat resisting temperature is 1000 DEG C.
It can be seen from the above that the drill bit handled using the utility model by PVD, can effectively be lifted metal bit hardness,
Wearability and resistance to elevated temperatures, so as to improve the service life and product quality, production efficiency of metal bit.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only explaining
The utility model, is not used to limit the claim of the utility model.Institute where within the spirit and principles of the present invention
Any modification, equivalent replacement and improvement made etc., should be included in the scope of protection of the utility model.
Brief description of the drawings
Fig. 1 is the schematic cross-sectional view of the drill bit with PVD coatings of the utility model.
Main element symbol description：
| Bit matrix | 1 |
| Binder course | 2 |
| Modulating layer | 31 |
| Functional layer | 32 |
Following embodiment will further illustrate the utility model with reference to above-mentioned attached drawing.
Embodiment
Case 1 is embodied：
A kind of drill bit being surface-treated by PVD, it is characterised in that including bit matrix 1, be attached to matrix from inside to outside
The binder course 2 on 1 surface and the modulating layer 31 and functional layer 32 for being repeated in 4 cycles.The binder course 2 is AlCr coatings,
Its thickness is 0.6um, and wherein the ratio between amount of material of Al and Cr of AlCr coatings is 70：30；The modulating layer 31 is AlCr
Coating, its thickness are 0.18um, and wherein the ratio between amount of Al and Cr material of AlCr coatings is 70：30；The functional layer 32 is
TiSi coatings, its thickness are 0.15um, and the ratio between amount of Ti and Si materials is 85 wherein in TiSi coatings：15.The film layer
Gross thickness is 1.92um.
The hardness of drill bit coating by PVD surface treatments is 3300V, can be reached using Rockwell apparatus measurement with reference to power
To HF1 standards, the friction friction coefficient with metal is 0.25, and heat resisting temperature is 1000 DEG C.
Its preparation process is as follows：
A, vacuumize, heat：1 material of matrix is positioned in vacuum coating equipment first, adjustment equipment vacuum is 6*
10-5Mbar, heating 1h or so so that temperature is increased to 460-480 DEG C.
B, matrix 1 is cleaned：Ion bombardment, bias voltage 10V, molecular pump running frequency from starting vacuumize when
100% drops to 72%, is passed through high-purity hydrogen (H) and 99.999% height that purity is 99.999% at the same time in a device
Purity argon (Ar), the flow of hydrogen (H) is 50-200sccm, and the flow of argon gas (Ar) is 50sccm, duration of ventilation 20-
30min.Then, bias voltage is set to 200V, is passed through high purity argon (Ar) in a device, and the flow of argon gas (Ar) is
50sccm, duration of ventilation 20-30min.
C, binder course 2 is plated：Molecule pump frequency is 72%, is filled with nitrogen (N) in a device so that the pressure in equipment is
2.5*10-2Mbar, singly opens AlCr70/30 targets, arc current 150A, bias voltage 40-120V, coating time period 28min.
D, modulating layer 31 is plated：Molecule pump frequency is 72%, is filled with nitrogen (N) in a device so that the pressure in equipment is
4*10-2Mbar, singly opens AlCr70/30 targets, arc current 180A, bias voltage 120V, coating time period 9min.
E, functional layer 32 is plated：Molecule pump frequency is 72%, pours nitrogen (N) in a device so that the pressure in equipment is
4*10-2Mbar, singly opens TiSi85/15 targets, arc current 200A, bias voltage 40V, coating time period 9min.
F, above-mentioned steps D, step F are one group, 4 cycles of cycle operation so that (binder course 2+ is modulated the gross thickness of film layer
Layer 31+ functional layers 32) it is 1.92um.
G, temperature is reduced to less than 200 DEG C before finally coming out of the stove.
Case 2 is embodied：
A kind of drill bit being surface-treated by PVD, it is characterised in that including bit matrix 1, be attached to matrix from inside to outside
The binder course 2 on 1 surface and the modulating layer 31 and functional layer 32 for being repeated in 5 cycles.The binder course 2 is AlCr coatings,
Its thickness is 0.8um, and wherein the ratio between amount of material of Al and Cr of AlCr coatings is 70：30；The modulating layer 31 is AlCr
Coating, its thickness are 0.20um, and wherein the ratio between amount of Al and Cr material of AlCr coatings is 70：30；The functional layer 32 is
TiSi coatings, its thickness are 0.16um, and the ratio between amount of Ti and Si materials is 85 wherein in TiSi coatings：15.The film layer
Gross thickness is 2.6um.
The hardness of drill bit coating by PVD surface treatments is 3300V, can be reached using Rockwell apparatus measurement with reference to power
To HF1 standards, the friction friction coefficient with metal is 0.25, and heat resisting temperature is 1000 DEG C.
Specific preparation process referring again to specific implementation case 1, is not described further in detail herein.
Case 3 is embodied：
A kind of drill bit being surface-treated by PVD, it is characterised in that including bit matrix 1, be attached to matrix from inside to outside
The binder course 2 on 1 surface and the modulating layer 31 and functional layer 32 for being repeated in 6 cycles.The binder course 2 is AlCr coatings,
Its thickness is 0.55um, and wherein the ratio between amount of material of Al and Cr of AlCr coatings is 70：30；The modulating layer 31 is
AlCr coatings, its thickness are 0.165um, and wherein the ratio between amount of Al and Cr material of AlCr coatings is 70：30；The functional layer
32 be TiSi coatings, its thickness is 0.145um, and the ratio between amount of Ti and Si materials is 85 wherein in TiSi coatings：15.The film
The gross thickness of layer is 2.41um.
The hardness of drill bit coating by PVD surface treatments is 3200V, can be reached using Rockwell apparatus measurement with reference to power
To HF1 standards, the friction friction coefficient with metal is 0.25, and heat resisting temperature is 1000 DEG C.
Specific preparation process referring again to specific implementation case 1, is not described further in detail herein.
Embodiment described above, its description is more specific and detailed, but can not therefore be interpreted as to the utility model
The limitation of the scope of the claims.It should be pointed out that for those of ordinary skill in the art, the utility model structure is not being departed from
On the premise of think of, various modifications and improvements can be made, these belong to the scope of protection of the utility model.Therefore, this reality
It should be determined by the appended claims with the protection domain of new patent.
Claims (1)
1. a kind of drill bit with PVD coatings, it is characterised in that including bit matrix, be attached to matrix surface from inside to outside
Binder course and the modulating layer and functional layer for being repeated in N number of cycle, the binder course is AlCr coatings, its thickness is 0.5-
0.8um；The modulating layer is AlCr coatings, its thickness is 0.16-0.20um；The functional layer is TiSi coatings, it is thick
Spend for 0.14-0.16um, the gross thickness of the modulating layer for being repeated in N number of cycle and functional layer is 1.3-2.7um, 4≤N
≤ 6, N are natural number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720356971.9U CN207278191U (en) | 2017-04-07 | 2017-04-07 | A kind of drill bit with PVD coatings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720356971.9U CN207278191U (en) | 2017-04-07 | 2017-04-07 | A kind of drill bit with PVD coatings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207278191U true CN207278191U (en) | 2018-04-27 |
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ID=61991681
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720356971.9U Expired - Fee Related CN207278191U (en) | 2017-04-07 | 2017-04-07 | A kind of drill bit with PVD coatings |
Country Status (1)
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| CN (1) | CN207278191U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112458410A (en) * | 2019-09-09 | 2021-03-09 | 苏州吉恒纳米科技有限公司 | Superhard silicon-based coating |
-
2017
- 2017-04-07 CN CN201720356971.9U patent/CN207278191U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112458410A (en) * | 2019-09-09 | 2021-03-09 | 苏州吉恒纳米科技有限公司 | Superhard silicon-based coating |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180427 Termination date: 20190407 |
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| CF01 | Termination of patent right due to non-payment of annual fee |