CN203729932U - Expansion cone with TiN or TiAlN thin film layer - Google Patents
Expansion cone with TiN or TiAlN thin film layer Download PDFInfo
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- CN203729932U CN203729932U CN201320878720.9U CN201320878720U CN203729932U CN 203729932 U CN203729932 U CN 203729932U CN 201320878720 U CN201320878720 U CN 201320878720U CN 203729932 U CN203729932 U CN 203729932U
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- expansion cone
- thin layer
- tin
- transition zone
- thin film
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- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The utility model provides an expansion cone with a TiN or TiAlN thin film layer. The external surface of a work surface of the expansion cone (1) is at least provided with the TiN or TiAlN thin film layer (3) in an area of a reducing segment (2) of the expansion cone; the periphery of the expansion cone is winded by the thin film layer (3); the thickness of the thin film layer (3) is 0.5 [mu]m to 5[mu]m; and preferentially, nano-indentation hardness of the thin film layer (3) is 20GPa to 30GPa. The expansion cone has great surface hardness, excellent film/substrate binding force and great wear resistance performance as well as low friction coefficient. By the use of the TiN or TiAlN thin film layer, direct contact between a steel base body of the expansion cone and a steel base body of an expansion pipe can be avoided, so adhesive wear is prevented and service life of the expansion cone is prolonged.
Description
Technical field
The utility model belongs to oil-gas field development technical field, is specifically related to the expansion cone of a kind of TiN of having or TiAlN thin layer.
Background technology
Bulged tube technology is the great new technology occurring in petroleum works field, is also a hot research field in recent years.Bulged tube technology is under the effect of hydraulic pressure or mechanical force, drives expansion cone to produce and move axially in expansion tube, reaches thereby make expansion tube exceed elastic limit generation permanent plastic deformation the object that increases flow string or well internal diameter.Bulged tube technology can solve that conventional well deep structure well is darker, the sleeve pipe number of plies is more effectively, and the problem that final borehole diameter will be very little, can be used for the operation process such as drilling well, completion, oil recovery, well workover.
Domestic and international expansion cone used is high strength steel at present, and expansion tube is through the special sleeve pipe processing by mild steel.The expansion process of sleeve pipe is the friction process of the friction pair of expansion cone surface and expansion sleeve inner surface formation namely.Because the external diameter of expansion cone is greater than the internal diameter of expansion tube, the needed power of plastic strain causes contact between expansion cone and inflatable sleeves pipe internal surface far away higher than the pressure between contact surface in standard machinery transmission, in mechanical bearing, contact surface is pressed only has 20-50MPa conventionally, result of study shows, in order to make sleeve pipe by dilatating and deformable, interface pressure between bloat tool and internal surface of sleeve pipe can be up to 500-800MPa, in operation process, contact interface is followed high temperature rise, because expansion cone and expansion tube material all belong to steel, so there is adherent phenomenon, cause certain adhesive wear.And the sand grains existing in operating environment, causes serious abrasive wear and destruction to expansion cone surface, therefore in expansion process, be there is to serious fretting wear problem in expansion cone.Wearing and tearing in expansion tube operation process mainly comprise adhesive wear, contact fatigue wearing and tearing and abrasive wear, by improving intensity and the hardness of expansion cone surfacing, change the material behavior of expansion cone and expansion tube contact interface, can make the wearing and tearing of expansion cone reduce.
Both at home and abroad mainly to be coated with sliding agent, the microencapsulation coating that comprises sliding agent on expansion tube surface, to add a mechanism in order to provide the methods such as sliding agent to reduce fretting wear in expansion cone, but hydrodynamic lubrication material can not play a role during up to 500-800MPa at interface pressure, in the expansion process of long well section, there is the serious attrition problem such as ineffective that comes off in solid lubricant coating, cause expansion cone serious wear, improved operating risk.The expansion cone made from Hardmetal materials completely, can significantly improve the hardness of expansion cone, but because Hardmetal materials fragility is large, have the danger of easy embrittlement in expansion operation process.The purpose of this utility model is just for above-mentioned existing methodical deficiency, provide a kind of new raising expansion cone wear-resistant, extend the expansion cone method in application life.
The TiN of vapour deposition and TiAlN thin layer have higher hardness, good abrasion resistance properties, and successful Application is made cutter coat, has significantly improved the application life of cutter.TiN and TiAlN thin layer are used for to expansion cone surface, improve the case hardness of expansion cone, avoid steel to contact with the direct of steel, reduce frictional resistance and adhesive wear, thus reach reduce the bulbs of pressure, increase the service life, reduce operational pressure, the object of raising job success ratio.
Utility model content
The purpose of this utility model is to provide the expansion cone of a kind of TiN of having or TiAlN thin layer, the utility model is at expansion cone external surface ad-hoc location deposition ganoine thin film layer, this thin layer has good abrasion resistance properties, the adhesive wear of having avoided expansion cone steel matrix to cause with direct contact of expansion tube steel matrix, thereby the life-span of improving expansion cone.
For reaching above-mentioned purpose, the utility model provides the expansion cone of a kind of TiN of having or TiAlN thin layer, at described expansion cone 1 work plane external surface, at least at region division TiN or the TiAlN thin layer 3 of expansion cone reducer 2, described thin layer 3 arranges one week around expansion cone.
According to expansion cone described in the utility model, preferred described thin layer 3 thickness are 0.5-5 μ m.
According to expansion cone described in the utility model, preferred described thin layer 3 thickness are 2 μ m.
According to expansion cone described in the utility model, preferred described thin layer 3 is the thin layer of nano hardness at 20GPa-30GPa.
According to expansion cone described in the utility model, described TiN or TiAlN thin layer 3 are TiN or the TiAlN thin layers 3 that are arranged on described expansion cone work plane external surface by multi-arc ion plating film.
According to expansion cone described in the utility model, between described TiN or TiAlN thin layer 3 and expansion cone 1 work plane external surface, transition zone 6 is also set;
According to expansion cone described in the utility model, described transition zone 6 is with described TiN or TiAlN thin layer 3 form fit and overlap.
Wherein should be understood that, described transition zone 6 overlaps with described thin layer 3; Thin layer 3 is identical with transition zone 6 areas, so that thin layer 3 and transition zone 6 are mated completely.
According to expansion cone described in the utility model, the preferred described transition region thickness of the utility model is 0.1～0.5 μ m;
Wherein 0.2 μ m more preferably.
According to described expansion cone arbitrarily before the utility model, when expansion cone is while having the expansion cone of TiN thin layer 3, described transition zone 6 is Ti transition zone; When expansion cone is while having the expansion cone of TiAlN thin layer 3, described transition zone 6 is TiAl transition zone.
According to expansion cone described in the utility model, transition zone 6 is for being arranged on the transition zone of described expansion cone work plane external surface by multi-arc ion plating film.
According to expansion cone described in the utility model, described multi-arc ion plating film comprises deposition and the post processing of pretreatment, thin layer, can obtain according to this process TiN or the TiAlN thin layer that hardness is high, film/base adhesion is good.
According to expansion cone described in the utility model, the condition of the deposition of described thin layer is: it is 3.0 × 10 that the gaseous mixture that passes into argon gas and nitrogen makes vacuum
-1pa～2Pa, arc current is 50A～80A, bias voltage is-50V～-400V;
Being deposited as of the preferred described TiN of the utility model or TiAlN thin layer: arc current 60A, bias voltage-100V.
According to expansion cone described in the utility model, before multi-arc ion plating film, also comprise expansion cone is carried out to Ion Cleaning step.
According to expansion cone described in the utility model, described Ion Cleaning step can be the Ion Cleaning of prior art routine, the utility model preferably comprises: non-expansion cone coating film area is blocked, adopt the mode of increasing back bias voltage to carry out Bombardment and cleaning to bombardment expansion cone coating film area under vacuum condition.
Wherein the utility model preferably blocks the non-coating film area of expansion cone with aluminium foil;
Wherein also preferably the described energy ion that carries can argon ion for carrying for the utility model.
According to expansion cone described in the utility model, before Ion Cleaning step, also comprise pre-treatment step: successively clean expansion cone with organic solvent, after cleaning, process dry expansion cone.
Described dry this area routine operation that is treated to, for example dries up.
According to expansion cone described in the utility model, when described multi-arc ion plating film deposition transition zone, passing into argon gas, to make vacuum be 3.0 × 10
-2pa～3.0 × 10
-1pa, arc current is 50A～80A, bias voltage is-50V～-400V.
Being deposited as of the preferred described transition zone of the utility model: arc current 80A, bias voltage-100V.
Described in the utility model also provides, have the processing method of the expansion cone of TiN or TiAlN thin layer, described method comprises TiN or TiAlN thin layer is arranged on to described expansion cone work plane external surface by multi-arc ion plating film.
In the time that described expansion cone arranges described transition zone 6, by multi-arc ion plating film, described transition zone 6 is set.
According to the method for this specific product, described multi-arc ion plating film comprises deposition and the post processing of pretreatment, thin layer.
According to the method for this specific product, the condition of the deposition of described thin layer is: it is 3.0 × 10 that the gaseous mixture that passes into argon gas and nitrogen makes vacuum
-1pa～2Pa, arc current is 50A～80A, bias voltage is-50V～-400V;
Being deposited as of the preferred described TiN of the utility model or TiAlN thin layer: arc current 60A, bias voltage-100V.
According to the method for this specific product, before multi-arc ion plating film, also comprise expansion cone is carried out to Ion Cleaning step.
According to the method for this specific product, described Ion Cleaning step can be the Ion Cleaning of prior art routine, the utility model preferably comprises: non-expansion cone coating film area is blocked, adopt the mode of increasing back bias voltage to carry out Bombardment and cleaning to bombardment expansion cone coating film area under vacuum condition.
Wherein the utility model preferably blocks the non-coating film area of expansion cone with aluminium foil;
Wherein also preferably the described energy ion that carries can argon ion for carrying for the utility model.
According to the method for this specific product, before Ion Cleaning step, also comprise pre-treatment step: successively clean expansion cone with acetone and ethanol, after cleaning, process dry expansion cone.
Described dry this area routine operation that is treated to, for example dries up.
According to the method for this specific product, when described multi-arc ion plating film deposition transition zone, passing into argon gas, to make vacuum be 3.0 × 10
-2pa～3.0 × 10
-1pa, arc current is 50A～80A, bias voltage is-50V～-400V.
Being deposited as of the preferred described transition zone of the utility model: arc current 80A, bias voltage-100V.
In sum, the utility model provides the expansion cone of a kind of TiN of having or TiAlN thin layer.Expansion cone tool of the present utility model has the following advantages:
The utility model provides a kind of anti abrasive expansion cone, and ganoine thin film layer, for expansion cone surface, is improved to expansion cone abrasion resistance properties, reduces the wearing and tearing in expansion cone operation process, reduces frictional resistance, can be for bulged tube technology.
Brief description of the drawings
Fig. 1 is the expansion cone schematic diagram with TiN or TiAlN thin layer of the utility model embodiment 1; Wherein, 1 is expansion cone, and 2 is reducer, and 3 is TiN or TiAlN thin layer, and 4 is sizing section, and 5 is guide section;
Fig. 2 is the local enlarged diagram of expansion cone that is provided with transition zone, and wherein 6 is Ti or TiAl transition zone;
Fig. 3 is the local enlarged diagram of the expansion cone that is provided with transition zone of embodiment 2, and wherein 6 is Ti or TiAl transition zone.
Detailed description of the invention
Describe below the beneficial effect of implementation process of the present utility model and generation by specific embodiment in detail, be intended to help reader to understand better essence of the present utility model and feature, not as restriction that can practical range to this case.
Embodiment 1
As shown in Figure 1 and Figure 2, at expansion cone work plane coating film area vapour deposition TiN ganoine thin film layer 3, the thickness of thin layer 3 is 2 μ m.TiN ganoine thin film 3 has covered sizing section 4, the guide section 5 of whole reducer 2 and part.
Its preparation comprises following step:
Pretreatment: successively clean expansion cone 1 in acetone and ethanol, remove surface attachments and pollutant and dry up surface.
Ion Cleaning: adopt aluminium foil that non-expansion cone 1 coating film area is blocked, coating film area is the region (Fig. 1) that comprises reducer 2, and expansion cone 1 is put into vacuum chamber.When vacuum reaches 5.0 × 10
-4when Pa, the bias voltage of add between expansion cone 1 and specimen holder-800V, and in vacuum chamber, pass into high-purity argon gas and make vacuum reach 2Pa, year energy argon ion bombardment expansion cone coating film area producing by ionization, further removes adsorption thing and makes surface active be beneficial to obtain high-quality TiN thin layer.
Depositing TiN thin film layer: adopting the method for multi-arc ion plating film is the thin layer 3 of 2 μ m at coating film area deposit thickness.First, deposit the Ti transition zone 6 of a layer thickness 0.2 μ m to improve film/base adhesion (Fig. 2) of workpiece and TiN thin layer at surface of the work, Ti transition zone 6 major sedimentary technological parameters are: arc current 80A, bias voltage-100V; Then depositing TiN thin film layer, major sedimentary technological parameter is: arc current 60A, bias voltage-100V.The TiN thin layer hardness of preparing according to this technique is better than 20GPa, and film/base adhesion is better than 50N.
Post processing: after expansion cone surface deposition TiN thin layer, for reducing thin layer internal stress and anti-oxidation, be cooled to room temperature in vacuum chamber.
Embodiment 2
As shown in Figure 3, TiN ganoine thin film 3 has covered whole reducer 2, does not cover sizing section 4 and guide section 5.Other are with embodiment 1.
Claims (10)
1. one kind has the expansion cone of TiN or TiAlN thin layer, it is characterized in that, the work plane external surface of described expansion cone (1) is at least at region division TiN or the TiAlN thin layer (3) of expansion cone reducer (2), and described thin layer (3) arranges one week around expansion cone.
2. expansion cone according to claim 1, is characterized in that, described thin layer (3) thickness is 0.5 μ m-5 μ m.
3. expansion cone according to claim 2, is characterized in that, described thin layer (3) thickness is 2 μ m.
4. expansion cone according to claim 1, is characterized in that, described thin layer (3) is the thin layer of nano hardness at 20GPa-30GPa.
5. according to the expansion cone described in claim 1～4 any one, it is characterized in that, between described TiN or TiAlN thin layer (3) and expansion cone (1) work plane external surface, transition zone (6) is also set.
6. expansion cone according to claim 5, is characterized in that, described transition zone (6) and described TiN or TiAlN thin layer (3) form fit and overlap.
7. expansion cone according to claim 5, is characterized in that, described transition zone (6) thickness is 0.1～0.5 μ m.
8. expansion cone according to claim 7, is characterized in that, described transition zone (6) thickness is 0.2 μ m.
9. expansion cone according to claim 5, is characterized in that, when expansion cone is that while having the expansion cone of TiN thin layer (3), described transition zone (6) is Ti transition zone; When expansion cone is that while having the expansion cone of TiAlN thin layer (3), described transition zone (6) is TiAl transition zone.
10. according to the expansion cone described in claim 6,7 or 8, it is characterized in that, when expansion cone is that while having the expansion cone of TiN thin layer (3), described transition zone (6) is Ti transition zone; When expansion cone is that while having the expansion cone of TiAlN thin layer (3), described transition zone (6) is TiAl transition zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878720.9U CN203729932U (en) | 2013-12-27 | 2013-12-27 | Expansion cone with TiN or TiAlN thin film layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878720.9U CN203729932U (en) | 2013-12-27 | 2013-12-27 | Expansion cone with TiN or TiAlN thin film layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203729932U true CN203729932U (en) | 2014-07-23 |
Family
ID=51200012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320878720.9U Expired - Fee Related CN203729932U (en) | 2013-12-27 | 2013-12-27 | Expansion cone with TiN or TiAlN thin film layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203729932U (en) |
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2013
- 2013-12-27 CN CN201320878720.9U patent/CN203729932U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20201227 |