CN113996794A - Polycrystalline diamond composite material, segment and preparation method thereof - Google Patents
Polycrystalline diamond composite material, segment and preparation method thereof Download PDFInfo
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- CN113996794A CN113996794A CN202110442510.4A CN202110442510A CN113996794A CN 113996794 A CN113996794 A CN 113996794A CN 202110442510 A CN202110442510 A CN 202110442510A CN 113996794 A CN113996794 A CN 113996794A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
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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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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
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Abstract
The invention relates to a polycrystalline diamond composite material, a segment and a preparation method thereof. The segment block consists of a working part and a supporting part, and the supporting part is used for supporting the working part; the working part is polycrystalline diamond composite material, and the supportAnd part is a hard alloy matrix. The segment of the invention has excellent impact toughness and wear resistance, and the impact toughness is 5-6J/cm2The abrasion ratio is 30-40 ten thousand, the diamonds in the blocks are uniformly distributed, the drilling can be carried out in a complex stratum, the service life of the drill bit is long, and the requirement that one drill bit is replaced by one drill bit is met. The segment of the invention can be used for cutting teeth of drill bits for deep sea and deep well exploration and long horizontal shale gas exploitation.
Description
Technical Field
The invention belongs to a segment for a shale gas exploitation drill bit for deep sea, deep well and long horizontal well of oil and gas drilling, and particularly relates to a polycrystalline diamond composite material, a segment and a preparation method of the polycrystalline diamond composite material.
Background
The reserves of deep oil and gas resources, deep sea oil and gas resources and unconventional natural gas resources in China are considerable, but the problems of high exploration and development difficulty, high cost and the like are faced. The deep well and ultra-deep well formations have strong abrasiveness, poor drillability and high temperature, so that the drilling rate of drilling machinery is extremely low, and the drilling rate of some formations is less than 0.5 m/h. If large-section inhomogeneous gravel layers are met, the abrasion of the drill bit is increased, the drilling speed of the drilling machine is reduced, the drilling period is prolonged, and the drilling cost is increased. Staged fracturing of a horizontal well with a long horizontal section is a main technical means for developing unconventional natural gas such as shale gas, dense gas and the like at present with high efficiency and low cost. At present, the cost and the period of the oil and gas drilling in China are 2-3 times of those of developed countries abroad, the complex geological conditions are objective reasons, but the laggard drilling technology is also an important factor. The 'one-trip drilling' technology is one of the key drilling technologies for effectively reducing the development cost of shale gas, and simultaneously provides new challenges for the performance of drilling tools. The deep sea drilling cost is 1.5-2 times of the land drilling cost, and even higher. Therefore, improving the drilling efficiency is an important way to reduce the cost of deepwater oil and gas exploration and development. The extended reach well is an effective means for marine oil and gas resource development, and is required to have strong wear resistance, high rock breaking efficiency, low failure rate and long service life due to large horizontal displacement and long drilling period.
The rotary impact drilling mode is a key technology for improving the drilling efficiency of deep wells and ultra-deep wells in complex stratums, and common drill bits comprise cone bit, PDC drill bit and diamond-impregnated bit. But the wear resistance of the hard alloy teeth of the prior roller bit is not enough, and the service life of the bit is short; the wear ratio of the PDC drill bit exceeds 50 ten thousand, but the impact toughness is only 3 to 4J/cm2The drilling bit is used for complex strata such as cobble and gravel and the like, teeth are easy to break, and the service life of the drilling bit is greatly shortened; the impregnated drill bit has low drilling efficiency and can only be used for drilling extremely hard rock layers. Therefore, there is a need to develop a material (or segment) with wear resistance and impact toughness for preparing drill bits and cutting teeth, so as to solve the problems in deep sea and deep well exploration and long-horizontal shale gas exploitation.
Disclosure of Invention
In view of the above problems, one of the objects of the present invention is to: a polycrystalline diamond composite material is provided.
In order to achieve the above purpose, the invention provides the following technical scheme:
the polycrystalline diamond composite material consists of metal powder and polycrystalline diamond, wherein the metal powder is made into a honeycomb structure, and the hollow part of the honeycomb structure is filled with the polycrystalline diamond.
Preferably, the volume ratio of the metal powder to the polycrystalline diamond is (1-3): (7-9).
Preferably, the metal powder is composed of W powder, Co powder, Cu powder, Zn powder and Ni powder.
Preferably, the mass ratio of W powder, Co powder, Cu powder, Zn powder and Ni powder in the metal powder is (60-80): (5-15): (5-10): (2-5): (5-10).
Preferably, the grain size of the polycrystalline diamond is 1-3 mm.
The second purpose of the invention is: a segment is provided.
In order to achieve the above purpose, the invention provides the following technical scheme:
a segment made of polycrystalline diamond composite material is composed of a working part and a supporting part, wherein the supporting part is used for supporting the working part; the working part is made of polycrystalline diamond composite materials, and the supporting part is a hard alloy matrix.
Preferably, the cemented carbide substrate is YG 15.
Preferably, the supporting part is a column, and a filling hole is arranged in the column and arranged along the axial direction of the column.
Preferably, the top surface of the columnar body is flat top or dome.
The third purpose of the invention is that: provides a preparation method of the block.
In order to achieve the above purpose, the invention provides the following technical scheme:
the preparation method of the first segment block specifically comprises the following steps:
s1: uniformly mixing the metal powder to obtain matrix powder;
s2: granulating the matrix powder to be used as a raw material;
s3: printing the raw materials into a bottom plate, a middle plate and a top plate in a 3D printing mode;
the lower side of the top plate is provided with a first pit, the upper side of the bottom plate is provided with a second pit, the upper side of the middle plate is provided with a third pit, the lower side of the middle plate is provided with a fourth pit, and the bottom plate, the middle plate and the top plate are combined together from bottom to top to form a honeycomb structure;
s4: placing polycrystalline diamond in each second pit and each third pit to form a polycrystalline diamond composite material;
s5: putting the polycrystalline diamond composite material and the hard alloy matrix into a graphite mould, and then putting the graphite mould into a cubic press to prepare the blocks at high temperature and high pressure.
Preferably, the granulation of the matrix powder in step S2 results in spheroidal particles having a particle size of 50-100 μm.
Preferably, in step S3, a plurality of first pits, a plurality of second pits, a plurality of third pits, and a plurality of fourth pits are provided and are in a one-to-one correspondence relationship; the structures and the intervals of the first pit, the second pit, the third pit and the fourth pit are obtained by adopting a finite element method.
Preferably, one or more middle plates are provided in step S3.
Preferably, when one middle plate is provided, the specific process of step S4 is as follows:
placing polycrystalline diamond in each second pit on the upper side of the bottom plate, and then covering the middle plate; placing polycrystalline diamond in each third pit on the upper side of the middle plate, and covering the top plate to form a polycrystalline diamond composite material;
when a plurality of intermediate plates are provided, the specific process of step S4 is as follows:
placing polycrystalline diamond in each second pit on the upper side of the bottom plate, and then covering the middle plate; putting polycrystalline diamond into each third pit on the upper side of the middle plate, covering the middle plate again, putting the polycrystalline diamond into each third pit on the upper side of the middle plate, repeating the steps until the required thickness is reached, and finally covering the top plate to form the polycrystalline diamond composite material.
Preferably, the conditions of high temperature and high pressure described in step S5 are set as: the temperature is 1350-.
Compared with the prior art, the invention has the beneficial effects that:
1) the volume fraction of the diamond in the working part (polycrystalline diamond composite material) can reach 70-90%, the polycrystalline diamond is filled in pits reserved in the three parts by 3D printing of the bottom plate, the middle plate and the top plate, the polycrystalline diamond is combined with peripheral metal powder under the conditions of high temperature and high pressure to form the polycrystalline diamond composite material with extremely high wear resistance, and the polycrystalline particles are not in contact with one another and are not easy to fall off, so that the wear resistance of the segment is greatly improved.
2) The polycrystalline diamond composite material adopts metal powder formed by a 3D printing process as a supporting structure, and compared with the conventional composite sheet PDC, the impact toughness is greatly improved.
3) The segment of the invention has excellent impact toughness and wear resistance, and the impact toughness is 5-6J/cm2The abrasion ratio is 30-40 ten thousand, the diamonds in the blocks are uniformly distributed, the drilling can be carried out in a complex stratum, the service life of the drill bit is long, and the requirement that one drill bit is replaced by one drill bit is met. The segment of the invention can be used for cutting teeth of drill bits for deep sea and deep well exploration and long horizontal shale gas exploitation.
Drawings
FIG. 1 is a schematic view of the structure of a bottom plate, a middle plate and a top plate;
FIG. 2 is a schematic structural view of a dome-shaped segment;
FIG. 3 is a schematic structural view of a flat-topped segment;
in the reference symbols: 10-bottom plate, 11-second recess, 20-middle plate, 21-third recess, 22-fourth recess, 30-top plate, 31-first recess, 40-working portion, 50-supporting portion.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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.
Example 1
A polycrystalline diamond composite segment is composed of a polycrystalline diamond composite of a working portion and a cemented carbide substrate of a support portion.
The working part is prepared from the following raw materials in percentage by volume: 10% of metal powder and 90% of polycrystalline diamond.
The metal powder of the working part comprises the following components in percentage by weight: 70% of W powder, 10% of Co powder, 10% of Cu powder, 5% of Zn powder and 5% of Ni powder.
The polycrystalline diamond grain size of the working portion was 2 mm.
The cemented carbide pieces of the support portion were YG15 (cemented carbide pieces of WC and Co, wherein Co was 15% by mass).
A preparation method of a polycrystalline diamond composite material segment comprises the following steps:
s1: weighing the raw materials according to the proportion of the metal powder, and uniformly mixing to obtain matrix powder;
s2: granulating the matrix powder to obtain spheroidal particles, sieving with a 50-mesh sieve, then sieving with a 100-mesh sieve, and using oversize products of the 100-mesh sieve as raw materials;
s3: printing the raw materials into a bottom plate, a middle plate and a top plate in a 3D printing mode; as shown in fig. 1:
as can be seen from fig. 1: the lower side of the top plate is provided with a first pit, the upper side of the bottom plate is provided with a second pit, the upper side of the middle plate is provided with a third pit, the lower side of the middle plate is provided with a fourth pit, and the bottom plate, the middle plate and the top plate are combined together from bottom to top to form a honeycomb structure;
the first pit, the second pit, the third pit and the fourth pit are all provided with a plurality of pits in one-to-one correspondence; the structures and the intervals of the first pit, the second pit, the third pit and the fourth pit are obtained by adopting a finite element method;
s4: placing polycrystalline diamond in each second pit on the upper side of the bottom plate, and then covering the middle plate; putting polycrystalline diamond into each third pit on the upper side of the middle plate, covering the middle plate again, putting the polycrystalline diamond into each third pit on the upper side of the middle plate, repeating the steps until the required thickness is reached, and finally covering the top plate to form the polycrystalline diamond composite material;
s5: putting a hard alloy matrix into a graphite die, putting the polycrystalline diamond composite material into a filling hole of the hard alloy matrix, and preparing the hard alloy matrix into blocks in a cubic press at high temperature and high pressure (the temperature is 1360 ℃ and the pressure is 5 GPa).
The segment of this embodiment may be arranged in the configuration of fig. 2 or fig. 3;
when the segment of example 1 is provided as the dome-shaped segment of fig. 2, it can be seen from fig. 2 that: the segment comprises a supporting part and a working part (polycrystalline diamond composite material) arranged in a filling hole of the supporting part; the supporting part is a column body, a filling hole is arranged in the column body, the filling hole is arranged along the axis direction of the column body, and the top surface of the supporting part is a dome. The impact toughness of the blocks prepared at this time was 5.6J/cm2The abrasion ratio is 34.2 ten thousand;
when the segment of example 1 is provided as the flat-topped segment of fig. 3, it can be seen from fig. 3 that: the segment comprises a supporting part and a working part (polycrystalline diamond composite material) arranged in a filling hole of the supporting part; the supporting part is a column body, a filling hole is arranged in the column body, the filling hole is arranged along the axial direction of the column body, and the top surface of the supporting part is flat-topped. The impact toughness of the blocks prepared at this time was 5.0J/cm2The abrasion ratio is 40 ten thousand.
From the performance parameters of the above blocks, it can be seen that: the dome-shaped segment has an impact toughness ratio superior to that of the flat-top segment, and the flat-top segment has a wear ratio superior to that of the dome-shaped segment. Therefore, in actual operation, the top surface of the columnar body is selected to be flat or dome according to requirements of different positions of the drill bit, for example, the dome is selected at a place with large impact force, and the flat is selected at a position with serious abrasion.
Example 2
A polycrystalline diamond composite segment is composed of a polycrystalline diamond composite of a working portion and a cemented carbide substrate of a support portion.
The working part is prepared from the following raw materials in percentage by volume: 20% of metal powder and 80% of polycrystalline diamond.
The metal powder of the working part comprises the following components in percentage by weight: 75% of W powder, 10% of Co powder, 5% of Cu powder, 5% of Zn powder and 5% of Ni powder.
The polycrystalline diamond grain size of the working portion was 2 mm.
The cemented carbide pieces of the support portion were YG15 (cemented carbide pieces of WC and Co, wherein Co was 15% by mass).
A preparation method of a polycrystalline diamond composite material segment comprises the following steps:
s1: weighing the raw materials according to the proportion of the metal powder, and uniformly mixing to obtain matrix powder;
s2: granulating the matrix powder to obtain spheroidal particles, sieving with a 50-mesh sieve, then sieving with a 100-mesh sieve, and using oversize products of the 100-mesh sieve as raw materials;
s3: printing the raw materials into a bottom plate, a middle plate and a top plate in a 3D printing mode; as shown in fig. 1:
as can be seen from fig. 1: the lower side of the top plate is provided with a first pit, the upper side of the bottom plate is provided with a second pit, the upper side of the middle plate is provided with a third pit, the lower side of the middle plate is provided with a fourth pit, and the bottom plate, the middle plate and the top plate are combined together from bottom to top to form a honeycomb structure;
the first pit, the second pit, the third pit and the fourth pit are all provided with a plurality of pits in one-to-one correspondence; the structures and the intervals of the first pit, the second pit, the third pit and the fourth pit are obtained by adopting a finite element method;
s4: placing polycrystalline diamond in each second pit on the upper side of the bottom plate, and then covering the middle plate; putting polycrystalline diamond into each third pit on the upper side of the middle plate, covering the middle plate again, putting the polycrystalline diamond into each third pit on the upper side of the middle plate, repeating the steps until the required thickness is reached, and finally covering the top plate to form the polycrystalline diamond composite material;
s5: putting a hard alloy matrix into a graphite die, putting the polycrystalline diamond composite material into a filling hole of the hard alloy matrix, and preparing the hard alloy matrix into blocks in a cubic press at high temperature and high pressure (the temperature is 1360 ℃ and the pressure is 5 GPa).
The polycrystalline diamond composite material segment prepared in the example (the structure is shown in figure 2) has the impact toughness of 5.5J/cm2The abrasion ratio is 35.5 ten thousand.
Example 3
A polycrystalline diamond composite segment is composed of a polycrystalline diamond composite of a working portion and a cemented carbide substrate of a support portion.
The working part is prepared from the following raw materials in percentage by volume: 30% of metal powder and 70% of polycrystalline diamond.
The metal powder of the working part comprises the following components in percentage by weight: 80% of W powder, 5% of Co powder, 5% of Cu powder, 3% of Zn powder and 7% of Ni powder.
The polycrystalline diamond grain size of the working portion was 2 mm.
The cemented carbide pieces of the support portion were YG15 (cemented carbide pieces of WC and Co, wherein Co was 15% by mass).
A preparation method of a polycrystalline diamond composite material segment comprises the following steps:
s1: weighing the raw materials according to the proportion of the metal powder, and uniformly mixing to obtain matrix powder;
s2: granulating the matrix powder to obtain spheroidal particles, sieving with a 50-mesh sieve, then sieving with a 100-mesh sieve, and using oversize products of the 100-mesh sieve as raw materials;
s3: printing the raw materials into a bottom plate, a middle plate and a top plate in a 3D printing mode; as shown in fig. 1:
as can be seen from fig. 1: the lower side of the top plate is provided with a first pit, the upper side of the bottom plate is provided with a second pit, the upper side of the middle plate is provided with a third pit, the lower side of the middle plate is provided with a fourth pit, and the bottom plate, the middle plate and the top plate are combined together from bottom to top to form a honeycomb structure;
the first pit, the second pit, the third pit and the fourth pit are all provided with a plurality of pits in one-to-one correspondence; the structures and the intervals of the first pit, the second pit, the third pit and the fourth pit are obtained by adopting a finite element method;
s4: placing polycrystalline diamond in each second pit on the upper side of the bottom plate, and then covering the middle plate; putting polycrystalline diamond into each third pit on the upper side of the middle plate, covering the middle plate again, putting the polycrystalline diamond into each third pit on the upper side of the middle plate, repeating the steps until the required thickness is reached, and finally covering the top plate to form the polycrystalline diamond composite material;
s5: putting a hard alloy matrix into a graphite die, putting the polycrystalline diamond composite material into a filling hole of the hard alloy matrix, and preparing the hard alloy matrix into blocks in a cubic press at high temperature and high pressure (the temperature is 1360 ℃ and the pressure is 5 GPa).
The polycrystalline diamond composite material segment prepared in the example (the structure is shown in figure 2) has the impact toughness of 6.0J/cm2The abrasion ratio is 30 ten thousand.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (15)
1. A polycrystalline diamond composite, characterized by: the metal powder is made into a honeycomb structure, and the polycrystalline diamond is filled in the hollow part of the honeycomb structure.
2. The polycrystalline diamond composite of claim 1, wherein: the volume ratio of the metal powder to the polycrystalline diamond is (1-3): (7-9).
3. The polycrystalline diamond composite of claim 1, wherein: the metal powder is composed of W powder, Co powder, Cu powder, Zn powder and Ni powder.
4. A polycrystalline diamond composite according to claim 3, wherein: the mass ratio of W powder, Co powder, Cu powder, Zn powder and Ni powder in the metal powder is (60-80): (5-15): (5-10): (2-5): (5-10).
5. The polycrystalline diamond composite of claim 1, wherein: the grain size of the polycrystalline diamond is 1-3 mm.
6. A segment formed from the polycrystalline diamond composite material of any one of claims 1 to 5, wherein: the segment block consists of a working part and a supporting part, and the supporting part is used for supporting the working part; the working part is made of polycrystalline diamond composite materials, and the supporting part is a hard alloy matrix.
7. The segment of claim 6 wherein: the hard alloy matrix is YG 15.
8. The segment of claim 6 wherein: the supporting part is a columnar body, a filling hole is arranged in the columnar body, and the filling hole is arranged along the axial direction of the columnar body.
9. The segment of claim 8 wherein: the top surface of the columnar body is flat-top or dome.
10. A method of preparing a segment as claimed in any one of claims 7 to 9 wherein: the method specifically comprises the following steps:
s1: uniformly mixing the metal powder to obtain matrix powder;
s2: granulating the matrix powder to be used as a raw material;
s3: printing the raw materials into a bottom plate, a middle plate and a top plate in a 3D printing mode;
the lower side of the top plate is provided with a first pit, the upper side of the bottom plate is provided with a second pit, the upper side of the middle plate is provided with a third pit, the lower side of the middle plate is provided with a fourth pit, and the bottom plate, the middle plate and the top plate are combined together from bottom to top to form a honeycomb structure;
s4: placing polycrystalline diamond in each second pit and each third pit to form a polycrystalline diamond composite material;
s5: putting the polycrystalline diamond composite material and the hard alloy matrix into a graphite mould, and then putting the graphite mould into a cubic press to prepare the blocks at high temperature and high pressure.
11. The method of making a segment of claim 10 wherein: the granulation of the matrix powder in step S2 yields spheroidal particles having a particle size of 50-100 μm.
12. The method of making a segment of claim 10 wherein: in step S3, a plurality of first pits, a plurality of second pits, a plurality of third pits, and a plurality of fourth pits are provided and correspond to one another; the structures and the intervals of the first pit, the second pit, the third pit and the fourth pit are obtained by adopting a finite element method.
13. The method of making a segment of claim 10 wherein: one or more intermediate plates are provided in step S3.
14. The method of making a segment of claim 13 wherein:
when one middle plate is provided, the specific process of step S4 is as follows:
placing polycrystalline diamond in each second pit on the upper side of the bottom plate, and then covering the middle plate; placing polycrystalline diamond in each third pit on the upper side of the middle plate, and covering the top plate to form a polycrystalline diamond composite material;
when a plurality of intermediate plates are provided, the specific process of step S4 is as follows:
placing polycrystalline diamond in each second pit on the upper side of the bottom plate, and then covering the middle plate; putting polycrystalline diamond into each third pit on the upper side of the middle plate, covering the middle plate again, putting the polycrystalline diamond into each third pit on the upper side of the middle plate, repeating the steps until the required thickness is reached, and finally covering the top plate to form the polycrystalline diamond composite material.
15. The method of making a segment of claim 10 wherein: the conditions of high temperature and high pressure described in step S5 are set as: the temperature is 1350-.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110442510.4A CN113996794A (en) | 2021-04-23 | 2021-04-23 | Polycrystalline diamond composite material, segment and preparation method thereof |
| PCT/CN2021/104643 WO2022222279A1 (en) | 2021-04-23 | 2021-07-06 | Polycrystalline diamond composite material, segment, and preparation method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110442510.4A CN113996794A (en) | 2021-04-23 | 2021-04-23 | Polycrystalline diamond composite material, segment and preparation method thereof |
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| CN113996794A true CN113996794A (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110442510.4A Pending CN113996794A (en) | 2021-04-23 | 2021-04-23 | Polycrystalline diamond composite material, segment and preparation method thereof |
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| WO (1) | WO2022222279A1 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6361873B1 (en) * | 1997-07-31 | 2002-03-26 | Smith International, Inc. | Composite constructions having ordered microstructures |
| US7108598B1 (en) * | 2001-07-09 | 2006-09-19 | U.S. Synthetic Corporation | PDC interface incorporating a closed network of features |
| US7794821B2 (en) * | 2003-06-12 | 2010-09-14 | Iakovos Sigalas | Composite material for drilling applications |
| US7553344B2 (en) * | 2005-06-07 | 2009-06-30 | Adico, Asia Polydiamond Company, Ltd. | Shaped thermally stable polycrystalline material and associated methods of manufacture |
| US7585342B2 (en) * | 2006-07-28 | 2009-09-08 | Adico, Asia Polydiamond Company, Ltd. | Polycrystalline superabrasive composite tools and methods of forming the same |
| GB201305873D0 (en) * | 2013-03-31 | 2013-05-15 | Element Six Abrasives Sa | Superhard constructions & method of making same |
| CN108342633B (en) * | 2017-12-21 | 2020-05-22 | 北京安泰钢研超硬材料制品有限责任公司 | Matrix composition, diamond segment adopting same and preparation method thereof |
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2021
- 2021-04-23 CN CN202110442510.4A patent/CN113996794A/en active Pending
- 2021-07-06 WO PCT/CN2021/104643 patent/WO2022222279A1/en not_active Ceased
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| WO2022222279A1 (en) | 2022-10-27 |
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