CN115110077A - Preparation method of high-performance PDC drilling tool ball teeth - Google Patents
Preparation method of high-performance PDC drilling tool ball teeth Download PDFInfo
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- CN115110077A CN115110077A CN202210759093.0A CN202210759093A CN115110077A CN 115110077 A CN115110077 A CN 115110077A CN 202210759093 A CN202210759093 A CN 202210759093A CN 115110077 A CN115110077 A CN 115110077A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
- C04B35/528—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62222—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining ceramic coatings
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3817—Carbides
- C04B2235/3839—Refractory metal carbides
- C04B2235/3847—Tungsten carbides
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/422—Carbon
- C04B2235/427—Diamond
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- C—CHEMISTRY; METALLURGY
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5454—Particle size related information expressed by the size of the particles or aggregates thereof nanometer sized, i.e. below 100 nm
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
- C04B2235/666—Applying a current during sintering, e.g. plasma sintering [SPS], electrical resistance heating or pulse electric current sintering [PECS]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P10/25—Process efficiency
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Abstract
The invention discloses a preparation method of a high-performance PDC drilling tool ball tooth, which comprises the following steps: selecting diamond micro-powder; drying the fine powder in a drying furnace; selecting hard alloy, cleaning the surface of the hard alloy, removing oil and rust, cutting the top of the hard alloy into a hemisphere, and then preserving heat; preparing a graphite mold, preliminarily compacting the interior of the graphite mold of the diamond micro-fine powder hard alloy, and then sintering. The method adopts a discharge plasma sintering manufacturing mode to greatly simplify the process flow, improve the production rate of products, ensure the compactness of the ball teeth of the PDC drilling tool and ensure the hardness of the ball teeth of the drilling tool; the graphite mould can be repeatedly used, so that the production cost is saved; the selection of the material of the drill ball teeth ensures the thermal stability, impact resistance and abrasion ratio, and has better application prospect compared with the prior art.
Description
Technical Field
The invention relates to the technical field of additive manufacturing, in particular to a preparation method of a high-performance PDC drilling tool ball tooth.
Background
Drill bits are indispensable downhole tools in oil and gas production. Currently, a common drill bit is a PDC (Polycrystalline Diamond Compact) drill bit. The development technology of the PDC drilling tool spherical teeth used as a product used on a PDC drill bit directly influences the transformation and innovation of the petroleum exploration field.
At present, the PDC drilling tool button needs to use a niobium cup and a molybdenum cup for shaping in the preparation process and sintering at high temperature and high pressure, and the preparation method needs to be further researched due to the complex process, the long preparation period and the high cost.
Disclosure of Invention
In order to overcome the defects of related products in the prior art, the invention provides a preparation method of a high-performance PDC drilling tool ball tooth.
The invention provides a preparation method of a high-performance PDC drilling tool ball tooth, which comprises the following steps:
step 1, selecting diamond micropowder; drying the fine powder in a drying furnace for 3-4 hours at the drying temperature of 110-130 ℃;
step 2, selecting hard alloy with the shape of a cylinder, the size of 10-15mm in diameter and the height of 29-33mm, cleaning the surface of the hard alloy, removing oil and rust, cutting the top of the hard alloy into a hemisphere with the diameter of 8-13mm, then placing the hard alloy in a box type heat preservation furnace for heat preservation, and preserving the hard alloy at the constant temperature of 70-80 ℃ for use;
step 3, preparing a graphite die used in the discharge plasma sintering step, wherein the diameter of a cylindrical part of a cavity of the graphite die is the same as that of a cylindrical part of the hard alloy, and the diameter of a hemispherical part of the cavity is the same as that of the cylindrical part;
step 4, placing the diamond fine powder in the step 1 and the hard alloy in the step 2 into the graphite mold in the step 3, carrying out primary compaction, and then sintering at the sintering temperature of 300-450 ℃, the sintering pressure of 40-60 MPa and the sintering time of 5-30 min;
and 5, respectively carrying out post-treatment processes of grinding, polishing, sand blasting and tempering on the PDC drilling tool ball teeth preliminarily obtained in the step 4.
In certain embodiments of the invention, the cemented carbide is a tungsten-cobalt based cemented carbide or a tungsten-cobalt-titanium based cemented carbide.
In certain embodiments of the present invention, the diamond fine powder has a sintered thickness of 1 to 2mm on the surface of the cemented carbide.
In some embodiments of the present invention, the sintering mode in step 4 is sintering with a heat source, and the heat source is one of spark plasma, high-energy electron beam and laser.
In some embodiments of the present invention, the diamond fine powder has a particle size of 60 to 120 nm.
In certain embodiments of the present invention, the diamond fines may be replaced with tungsten carbide powder.
Compared with the prior art, the invention has the following advantages:
the preparation method of the high-performance PDC drilling tool ball tooth completely gets rid of the limitation of high temperature and high pressure of a niobium cup and a molybdenum cup required by the traditional PDC drilling tool ball tooth manufacturing by adopting a discharge plasma sintering manufacturing mode, greatly simplifies the process flow and improves the production rate of products; the graphite mould can be repeatedly used, so that the production cost is saved; the compactness of the PDC drilling tool ball teeth and the hardness of the drilling tool ball teeth are ensured by using a plasma sintering mode; moreover, because the operation can be carried out under the vacuum condition, the oxidation of the material is avoided; the selection of the material of the drill ball teeth ensures the thermal stability, impact resistance and abrasion ratio, and has better application prospect compared with the prior art.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present disclosure is set forth in order to provide a more thorough understanding thereof. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The invention provides a preparation method of a high-performance PDC drilling tool ball tooth, which comprises the following steps:
step 1, selecting diamond micropowder; drying the fine powder in a drying furnace for 3-4 hours at the drying temperature of 110-130 ℃;
step 2, selecting hard alloy with the shape of a cylinder, the size of 10-15mm in diameter and the height of 29-33mm, cleaning the surface of the hard alloy, removing oil and rust, cutting the top of the hard alloy into a hemisphere with the diameter of 8-13mm, then placing the hard alloy in a box type heat preservation furnace for heat preservation, and preserving the hard alloy at the constant temperature of 70-80 ℃ for use;
step 3, preparing a graphite die used in the discharge plasma sintering step, wherein the diameter of a cylindrical part of a cavity of the graphite die is the same as that of a cylindrical part of the hard alloy, and the diameter of a hemispherical part of the cavity is the same as that of the cylindrical part;
step 4, placing the diamond fine powder in the step 1 and the hard alloy in the step 2 into the graphite mold in the step 3, carrying out primary compaction, and then sintering at the sintering temperature of 300-450 ℃, the sintering pressure of 40-60 MPa and the sintering time of 5-30 min;
and 5, respectively carrying out post-treatment processes of grinding, polishing, sand blasting and tempering on the PDC drilling tool ball teeth preliminarily obtained in the step 4.
The hard alloy is tungsten-cobalt hard alloy or tungsten-cobalt-titanium hard alloy.
The sintering thickness of the diamond fine powder on the surface of the hard alloy is 1-2 mm.
The sintering mode in the step 4 is heat source sintering, and the used heat source is one of discharge plasma, high-energy electron beam and laser.
The grain size of the diamond fine powder is 60-120 nm.
The diamond micro-powder may be replaced with tungsten carbide powder.
The invention relates to a preparation method of a high-performance PDC drilling tool ball tooth, which is characterized in that a hard alloy-diamond composite sheet with the sintering thickness of 1-2mm is prepared on the surface of a hard alloy by a spark plasma sintering technology. The key points of the manufacturing process comprise: firstly, selecting hard alloy with good bonding property with diamond micropowder, wherein the good bonding property of the hard alloy and the diamond micropowder is the basis for preparing the spherical teeth of the high-quality PDC drilling tool; secondly, preparing a graphite mould for the SPS sintering PDC composite sheet drill bit column; thirdly, technological parameters of a sintering process for preparing PDC drilling tool spherical teeth through sps; and finally, a tissue control and post-treatment process in the manufacturing process of the PDC drilling tool ball teeth.
The preparation method provided by the invention selects the spark plasma sintering technology to ensure the compactness of the PDC drilling tool ball tooth at low temperature and low pressure, the vacuum atmosphere in the preparation process can avoid the oxidation of the hard alloy matrix and the diamond fine powder, and the prepared PDC drilling tool ball tooth has good thermal stability, impact resistance and abrasion ratio.
The sintering thickness of the diamond fine powder on the surface of the cemented carbide is 1-2mm, but in practical application, the thickness may be properly adjusted according to practical requirements, for example, the thickness is less than 1mm, or more than 2mm, and the embodiment is not limited thereto.
In addition, the overall structure of the PDC drilling tool ball tooth provided by the invention adopts a cylindrical structure, and can also adopt a conical structure. When the PDC drilling tool ball teeth adopt a cylindrical structure, the diamond polycrystalline layer and the alloy matrix are in a cylindrical structure or an annular structure, and on the basis of the description and the relative relation of the diameters of the structures, the diameters are circular diameters. When the ball teeth of the PDC drilling tool adopt a conical structure, the diamond polycrystalline layer and the alloy matrix are in a conical structure. When the PDC composite sheet provided by the invention adopts a cylindrical structure, the PDC composite sheet is suitable for the existing mainstream PDC drill bit and can be used as a universal cutting piece of equipment. When the PDC composite sheet adopts a conical structure, the cutting edge of the PDC composite sheet is higher, so that the PDC composite sheet is more beneficial to cutting and is suitable for equipment with larger cutting requirements.
Example 1
Sintering diamond fine powder on the surface of a substrate YT15 by using a plasma sintering technology, wherein the diamond fine powder with the purity higher than 99.9 percent is used as a raw material, and the particle size of the diamond fine powder is 80-100 nm; drying the powder in a drying furnace for 1-2 hours at the drying temperature of 90-110 ℃; cleaning the surface of the matrix, removing oil and rust, and then putting the matrix into a drying furnace to preserve heat to 80 ℃; cladding operation is carried out on a YT15 substrate by adopting sps equipment to obtain the thickness of the composite layer of 1-1.5 mm.
And (4) processing the finished product after cladding, inspecting the appearance and the size until the finished product is qualified, and packaging the qualified product for storage.
Example 2
Using Q235 as a machine body, sintering diamond and tungsten carbide (WC) powder on the surface of the machine body by using a plasma sintering technology, using WC powder with the purity higher than 99.9% and diamond fine powder as raw materials, wherein the particle size of the powder is 80-100nm, adding 40% of WC powder in mass fraction into the diamond fine powder, uniformly mixing, and putting the mixture into a ball mill for grinding for three hours; drying the powder in a drying furnace for 4-5 hours at the temperature of 110-; cleaning the surface of the matrix, removing oil and rust, and then putting the matrix into a drying furnace to preserve heat to 80 ℃; and performing cladding operation on the Q235 substrate by adopting sps equipment to obtain the composite layer with the thickness of 1.5-2 mm.
And (4) processing the finished product after cladding, inspecting the appearance and the size until the finished product is qualified, and packaging the qualified product for storage.
Those not described in detail in this specification are within the skill of the art. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing detailed description, or equivalent changes may be made in some of the features of the embodiments. All equivalents that can be substituted by the contents of the present specification and applied directly or indirectly to other related technical fields are within the scope of the present invention.
Claims (6)
1. A preparation method of a high-performance PDC drilling tool ball tooth is characterized by comprising the following steps:
step 1, selecting diamond micropowder; drying the fine powder in a drying furnace for 3-4 hours at the drying temperature of 110-130 ℃;
step 2, selecting hard alloy with the shape of a cylinder, the size of 10-15mm in diameter and the height of 29-33mm, cleaning the surface of the hard alloy, removing oil and rust, cutting the top of the hard alloy into a hemisphere with the diameter of 8-13mm, then placing the hard alloy in a box type heat preservation furnace for heat preservation, and preserving the hard alloy at the constant temperature of 70-80 ℃ for use;
step 3, preparing a graphite die used in the discharge plasma sintering step, wherein the diameter of a cylindrical part of a cavity of the graphite die is the same as that of a cylindrical part of the hard alloy, and the diameter of a hemispherical part of the cavity is the same as that of the cylindrical part;
step 4, placing the diamond fine powder in the step 1 and the hard alloy in the step 2 into the graphite mold in the step 3, carrying out primary compaction, and then sintering at the sintering temperature of 300-450 ℃, the sintering pressure of 40-60 MPa and the sintering time of 5-30 min;
and 5, respectively carrying out post-treatment processes of grinding, polishing, sand blasting and tempering on the PDC drilling tool ball teeth preliminarily obtained in the step 4.
2. The method of making a high performance PDC drill tool button of claim 1, wherein: the hard alloy is tungsten-cobalt hard alloy or tungsten-cobalt-titanium hard alloy.
3. The method of making a high performance PDC drill tool button of claim 1, wherein: the sintering thickness of the diamond fine powder on the surface of the hard alloy is 1-2 mm.
4. The method of claim 1, wherein the method comprises the steps of: the sintering mode in the step 4 is heat source sintering, and the used heat source is one of discharge plasma, high-energy electron beam and laser.
5. The method of making a high performance PDC drill tool button of claim 1, wherein: the grain size of the diamond fine powder is 60-120 nm.
6. The method of making the high performance PDC drill tool button of claim 5, wherein: the diamond micro-powder may be replaced with tungsten carbide powder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210759093.0A CN115110077A (en) | 2022-06-29 | 2022-06-29 | Preparation method of high-performance PDC drilling tool ball teeth |
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| CN202210759093.0A CN115110077A (en) | 2022-06-29 | 2022-06-29 | Preparation method of high-performance PDC drilling tool ball teeth |
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| JP2000087108A (en) * | 1998-09-10 | 2000-03-28 | Ishizuka Kenkyusho:Kk | Manufacture of cemented carbide |
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| CN108145384A (en) * | 2017-12-27 | 2018-06-12 | 武汉锐特金刚石有限公司 | A kind of adamas composite sheet of tooth face and its manufacturing method |
| CN108486398A (en) * | 2018-05-29 | 2018-09-04 | 昆明理工大学 | A kind of preparation method of W-Co carbide hard metals |
| CN110029942A (en) * | 2019-05-27 | 2019-07-19 | 吉林大学 | Thermostable type composite polycrystal-diamond and preparation method thereof suitable for probing |
| CN110257679A (en) * | 2019-07-31 | 2019-09-20 | 安徽工业大学 | A kind of preparation method of molybdenum-base alloy coating |
| CN110590404A (en) * | 2019-10-16 | 2019-12-20 | 中国矿业大学 | HfB on surface of carbon-based material2Preparation method of-SiC oxidation resistant coating |
| CN112780273A (en) * | 2021-02-01 | 2021-05-11 | 武汉玖石超硬材料有限公司 | High-impact-resistance anti-falling polycrystalline diamond hard alloy pick head and manufacturing method thereof |
-
2022
- 2022-06-29 CN CN202210759093.0A patent/CN115110077A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000087108A (en) * | 1998-09-10 | 2000-03-28 | Ishizuka Kenkyusho:Kk | Manufacture of cemented carbide |
| CN201784215U (en) * | 2010-05-26 | 2011-04-06 | 郑州新亚复合超硬材料有限公司 | Diamond/hard alloy compact |
| CN102606082A (en) * | 2012-03-29 | 2012-07-25 | 成都比拓超硬材料有限公司 | Diamond compact and manufacturing process for same |
| CN105642191A (en) * | 2014-11-13 | 2016-06-08 | 吕艳 | Polycrystalline diamond composite sheet preparation process |
| CN105177389A (en) * | 2015-08-24 | 2015-12-23 | 安徽理工大学 | Mining hard alloy composite ball tooth and preparing method thereof |
| CN108145384A (en) * | 2017-12-27 | 2018-06-12 | 武汉锐特金刚石有限公司 | A kind of adamas composite sheet of tooth face and its manufacturing method |
| CN108486398A (en) * | 2018-05-29 | 2018-09-04 | 昆明理工大学 | A kind of preparation method of W-Co carbide hard metals |
| CN110029942A (en) * | 2019-05-27 | 2019-07-19 | 吉林大学 | Thermostable type composite polycrystal-diamond and preparation method thereof suitable for probing |
| CN110257679A (en) * | 2019-07-31 | 2019-09-20 | 安徽工业大学 | A kind of preparation method of molybdenum-base alloy coating |
| CN110590404A (en) * | 2019-10-16 | 2019-12-20 | 中国矿业大学 | HfB on surface of carbon-based material2Preparation method of-SiC oxidation resistant coating |
| CN112780273A (en) * | 2021-02-01 | 2021-05-11 | 武汉玖石超硬材料有限公司 | High-impact-resistance anti-falling polycrystalline diamond hard alloy pick head and manufacturing method thereof |
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